Some standard content:
ICS73.120
Machinery Industry Standard of the People's Republic of China
JB/T6988--2002
Replaces JB/T6988-1993
Spring cone crusher
Spring cone crusher
Published on July 16, 2002
Implementation on December 1, 2002
Published by the State Economic and Trade Commission of the People's Republic of ChinaForeword
Normative reference documents
Type and basic parameters
Technical requirements,
General requirements.
Technical requirements for main parts
Assembly requirements..
No-load test requirements
Load test requirements.
Safety and health requirements．
Supply scope of complete set of crusher
Test methods and inspection rules
Marking, packaging, transportation and storage
JB/T6988-2002
JB/T6988-2002
This standard replaces JB/T6988-1993 "Spring Cone Crusher". Compared with JB/T6988-1993, the main changes of this standard are as follows: the clearance deviation of the crushing wall and the crushing wall of the crusher in the whole circumference is specified separately for the standard type and the short head type; based on long-term production and manufacturing experience, the continuous no-load test time is changed from 4h to 2h; - Based on long-term production and manufacturing experience, the self-rotation speed of the crushing cone is changed from 10r/min to 15r/min. This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Mining Machinery (SAC/TC88). Drafting unit of this standard: Shenyang Heavy Machinery Group Co., Ltd. The main drafters of this standard are Ma Hanchun and Wang Lijun. This standard was first issued in January 1975, revised for the first time in July 1988, and revised for the second time in September 1993. 1 Scope
Spring cone crusher
JB/T6988—2002
This standard specifies the types and basic parameters, technical requirements, test methods and inspection rules, marking, packaging, transportation and storage of spring cone crushers.
This standard is applicable to spring cone crushers (hereinafter referred to as crushers) for crushing various ores or rocks with a compressive strength of less than 300MPa. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB/T191-2000 Pictorial symbols for packaging, storage and transportation (eqvISO780:1997) GB/T3768—1996 Acoustics - Determination of sound power level of noise source by sound pressure method - Simple method using envelope measurement surface above reflecting surface (eqvISo3746:1995)
JB/T5000.3—1998 General technical conditions for heavy machinery - Welded parts General technical conditions for heavy machinery - Packaging
JB/T5000.131998
JB/T5000.15—1998
3 Types and basic parameters
General technical conditions for heavy machinery - Non-destructive testing of forged steel parts The type of crusher is shown in Figure 1. The figure does not determine the structure of the crusher. The basic parameters of the crusher should comply with the provisions of Table 1. Table 1
PYB—0607
PYB0609
PYB-0611
PYB—0910
PYB—0917
PYB—0918
PYB—1213
PYB1215
PYB-1219||tt| |PYB-1225
PYB—1313
PYB—1321
PYB—1324
PY B1326
Broken wall big end
Diameter mm
Feeding port width
Maximum feeding particle size
Discharge port adjustment
Range mm
Processing capacity
55~160
110~160
60~165
100~195
140~300
190~310
105180
130~250
170 ~345
230~335
Main motor
≤110
≤150
Machine reference
JB/T6988—2002
PYB—1721
PYB-1724
PYB-1727
PYB—1737
PYB-2228
PYB2233
PYB—2237
PYB—2246||t t||PYBZ—2228
PYBZ—2233
PYBZ—2237
PYBZ—2246
PYD—0603
PYD—0605
PYD—0904
PYD—0906
PYD—0908||t t||PYD—1206
PYD—1207
PYD—1209
PYD—1212
PY D — 1306 | | tt |
PYD—2220
PYDZ—2210
PYDZ-2213
PYDZ-221 8
PYDZ—2220
Broken wall big end
Diameter mm
2200,
Feeding port width
Table 1 (continued)
Maximum feeding particle size
Discharge port adjustment
Processing capacity
180~320
255410
290630
430~680
380~725
600~990
780~1 270 | |tt | 0
140~180
160~210
35~160
80~160
95~220
190~230
90~200
135~280
190~330
190~400
350~500
450~590
500~650
270~575
490~700
630~840
720~900
Note 1: The machine reference weight in the table does not include the weight of the motor, electric control equipment, lubrication station and hydraulic station. Note 2: The crusher processing capacity in the table is the designed throughput when the following conditions are met: a) The moisture content of the material does not exceed 4%, and does not contain clay: Main motor
Power kw
≤220
≤280
≤375
≤110
≤150
≤220
≤280
≤375
The feed size is less than that of the fine particles at the discharge port, accounting for less than 10% of the total feed, and the feed is evenly distributed in the 360° circumference of the crushing chamber: c) The loose density of the feed is 1.6t/m, and the compressive strength is 150MPa. 2
Machine reference
Weight t
3.3 Model and marking
Example:
JB/T6988—2002
Feeding port width, in cm
Crushing wall large end diameter, in dm
Z stands for heavy-duty, ordinary type is not marked
B stands for standard type, D stands for short head type
Crusher (equipment)
Standard heavy-duty spring cone crusher with a crushing wall large end diameter of 2200mm and a feeding port width of 330mm: PYBZ-2233 Spring Cone Crusher
4 Technical requirements
4.1 General requirements
4.1.1 Crusher shall comply with the provisions of this standard and be manufactured according to drawings and technical documents approved in prescribed procedures. JB/T6988—2002
4.1.2 The wearing parts of the same type of crusher should be interchangeable. 4.2 Technical requirements for main parts
4.2.1 The following parts of the crusher should be made of materials with mechanical properties not lower than those specified in Table 2. 4.2.2 The main shaft should be inspected by ultrasonic flaw detection and meet the requirements of Grade IV in JB/T5000.15-1998. When other flaw detection methods are used, they should meet the requirements of the corresponding standards.
4.2.3 The dimensional tolerance and angular tolerance of the main welded structural parts such as the frame should meet the requirements of Grade B in JB/T5000.3-1998, and the shape and position tolerance should meet the requirements of Grade F. The dimensional tolerance and angular tolerance of the welded structural parts generally required should meet the requirements of Grade C in B/T5000.3-1998, and the shape and position tolerance should meet the requirements of Grade G. 4.3 Assembly requirements
The moving parts and hydraulic adjustment and locking devices of the crusher should be flexible, the hydraulic system should be leak-free, and the axial play clearance of the crusher drive shaft is 0.8mm~1.6mm. Table 2
Mechanical properties
Parts name
Support sleeve
Adjustment sleeve
Big gear
Small gear
The meshing clearance of the bevel gear of the crusher should comply with the provisions of Table 3. Table 3
Crusher specifications
Note: The meshing clearance of the gear is the clearance at the big end of the gear teeth. 4.3.4
0.51~1.02
0.51~1.02
0.51~1.02
0.76~1.27
1.02~1.52
1.27~1.78
2.34~3.12
2.34~3 .12
2.34~3.96
2.34~3.96
3.18~4.78| |tt||3.18~7.93
After the bowl-shaped bearing frame of the crusher is assembled, the clearance between its lower end face and the upper surface of the eccentric sleeve shall comply with the provisions of Table 4. Table 4
Crusher specifications
Original mm
When the discharge port is adjusted to the minimum size,
The discharge clearance deviation between the crushing wall and the whitening wall in the entire circumference after the crusher is assembled,
Standard crusher shall not exceed 25% of the discharge port size; short-head crusher shall not exceed 20% of the discharge port size. No-load test requirements
After the crusher is assembled, the manufacturer shall use the motor with the same working speed and the lubrication station with similar performance to conduct a no-load test for no less than 2 hours.
4.4.2 The speed of the crushing cone shall not be greater than 15r/min. 4.4.3 Periodic noise is not allowed in the bevel gear. 4.4.4 The oil supply pressure should be within the range of 0.04MPa0.1MPa, and the maximum return oil temperature should not exceed 50℃. 4.5 Load test requirements
4.5.1 Continuous operation for 72h.
4.5.2 The oil supply pressure should be within the range of 0.04MPa～0.1MPa, and the maximum return oil temperature should not exceed 60℃. 4.6 Safety and health requirements
The crusher should have an interlocking system for electrical protection devices and its auxiliary equipment. 4.6.2 The crusher spring overload protection device should be safe and reliable. 4.6.3 Safety operation signs should be fixed in obvious positions of the crusher. 4.6.4 The noise sound pressure level of the crusher when running without load should not exceed 90dB (A). 4.7 Complete supply scope of crusher
JB/T69882002
The complete supply scope of crusher includes: main engine, motor and low-pressure control equipment, lubrication station, hydraulic station and special tools. 5 Test methods and inspection rules
5.1 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressure
≤32MPa
>32MPa
Test pressure
5.2 When checking the gear meshing clearance, the eccentric sleeve shall be pressed against the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the drive shaft, press the back of the pinion against the end face of the drive shaft bushing, and use a feeler gauge to check the clearance between the oil slinger and the other end face of the drive shaft bushing.
5.4 The size of the discharge port can be checked by using a lead ball fixed on a steel wire and measuring at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four lead balls after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the predetermined size of the discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then according to the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no-load at the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher shall be disassembled for inspection. The friction parts shall not be seriously burned, blackened or worn. The slightly burned parts shall be properly treated before leaving the factory.
5.9 The load test run shall be carried out by the user and meet the following requirements: a) No-load operation shall comply with the provisions of 4.4; b) Half-load operation for 4h:
c) Full-load operation shall comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher shall be fixed with a product label in a conspicuous position, and the content is as follows: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 In general, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13-1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list:
b) Product factory certificate (certificate): installation and operation instructions, general drawings, component drawings, electrical control diagrams, lubrication and hydraulic system diagrams. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not rusted or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
200288691 Crusher shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. JB/T6988—2002
4.1.2 The wearing parts of the same type of crusher shall be interchangeable. 4.2 Technical requirements for main parts
4.2.1 The following parts of the crusher shall be made of materials with mechanical properties not lower than those specified in Table 2. 4.2.2 The main shaft shall be inspected by ultrasonic flaw detection and shall comply with the provisions of Grade IV in JB/T5000.15-1998. When other methods are used for flaw detection, they shall comply with the provisions of the corresponding standards.
4.2.3 The dimensional tolerance and angle tolerance of the main welded structural parts such as the frame shall comply with the provisions of Grade B in JB/T5000.3-1998, and the geometric tolerance shall comply with the provisions of Grade F. The dimensional tolerance and angle tolerance of welded structural parts generally required shall comply with the provisions of Class C in B/T5000.3-1998, and the form and position tolerance shall comply with the provisions of Class G. 4.3 Assembly requirements
The moving parts and hydraulic adjustment and locking devices of the crusher shall be flexible, the hydraulic system shall be free of leakage, and the axial play clearance of the crusher drive shaft shall be 0.8mm~1.6mm. Table 2
Mechanical properties
Part name
Support sleeve
Adjustment sleeve
Big gear
Small gear
The meshing clearance of the bevel gear of the crusher shall comply with the provisions of Table 3. Table 3
Crusher specifications
Note: The meshing clearance of the gear is the clearance at the big end of the gear teeth. 4.3.4
0.51~1.02
0.51~1.02
0.51~1.02
0.76~1.27
1.02~1.52
1.27~1.78
2.34~3.12
2.34~3 .12
2.34~3.96
2.34~3.96
3.18~4.78| |tt||3.18~7.93
After the bowl-shaped bearing frame of the crusher is assembled, the clearance between its lower end face and the upper surface of the eccentric sleeve shall comply with the provisions of Table 4. Table 4
Crusher specifications
Original mm
When the discharge port is adjusted to the minimum size,
The discharge clearance deviation between the crushing wall and the whitening wall in the entire circumference after the crusher is assembled,
Standard crusher shall not exceed 25% of the discharge port size; short-head crusher shall not exceed 20% of the discharge port size. No-load test requirements
After the crusher is assembled, the manufacturer shall use the motor with the same working speed and the lubrication station with similar performance to conduct a no-load test for no less than 2 hours.
4.4.2 The speed of the crushing cone shall not be greater than 15r/min. 4.4.3 Periodic noise is not allowed in the bevel gear. 4.4.4 The oil supply pressure should be within the range of 0.04MPa0.1MPa, and the maximum return oil temperature should not exceed 50℃. 4.5 Load test requirements
4.5.1 Continuous operation for 72h.
4.5.2 The oil supply pressure should be within the range of 0.04MPa～0.1MPa, and the maximum return oil temperature should not exceed 60℃. 4.6 Safety and health requirements
The crusher should have an interlocking system for electrical protection devices and its auxiliary equipment. 4.6.2 The crusher spring overload protection device should be safe and reliable. 4.6.3 Safety operation signs should be fixed in obvious positions of the crusher. 4.6.4 The noise sound pressure level of the crusher when running without load should not exceed 90dB (A). 4.7 Complete supply scope of crusher
JB/T69882002
The complete supply scope of crusher includes: main engine, motor and low-pressure control equipment, lubrication station, hydraulic station and special tools. 5 Test methods and inspection rules
5.1 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressure
≤32MPa
>32MPa
Test pressure
5.2 When checking the gear meshing clearance, the eccentric sleeve shall be pressed against the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the drive shaft, press the back of the pinion against the end face of the drive shaft bushing, and use a feeler gauge to check the clearance between the oil slinger and the other end face of the drive shaft bushing.
5.4 The size of the discharge port can be checked by using a lead ball fixed on a steel wire and measuring at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four lead balls after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the predetermined size of the discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then according to the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no-load at the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher shall be disassembled for inspection. The friction parts shall not be seriously burned, blackened or worn. The slightly burned parts shall be properly treated before leaving the factory.
5.9 The load test run shall be carried out by the user and meet the following requirements: a) No-load operation shall comply with the provisions of 4.4; b) Half-load operation for 4h:
c) Full-load operation shall comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher shall be fixed with a product label in a conspicuous position, and the content is as follows: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 In general, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13-1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list:
b) Product factory certificate (certificate): installation and operation instructions, general drawings, component drawings, electrical control diagrams, lubrication and hydraulic system diagrams. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not rusted or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
200288691 Crusher shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. JB/T6988—2002
4.1.2 The wearing parts of the same type of crusher shall be interchangeable. 4.2 Technical requirements for main parts
4.2.1 The following parts of the crusher shall be made of materials with mechanical properties not lower than those specified in Table 2. 4.2.2 The main shaft shall be inspected by ultrasonic flaw detection and shall comply with the provisions of Grade IV in JB/T5000.15-1998. When other methods are used for flaw detection, they shall comply with the provisions of the corresponding standards.
4.2.3 The dimensional tolerance and angle tolerance of the main welded structural parts such as the frame shall comply with the provisions of Grade B in JB/T5000.3-1998, and the geometric tolerance shall comply with the provisions of Grade F. The dimensional tolerance and angle tolerance of welded structural parts generally required shall comply with the provisions of Class C in B/T5000.3-1998, and the form and position tolerance shall comply with the provisions of Class G. 4.3 Assembly requirements
The moving parts and hydraulic adjustment and locking devices of the crusher shall be flexible, the hydraulic system shall be free of leakage, and the axial play clearance of the crusher drive shaft shall be 0.8mm~1.6mm. Table 2
Mechanical properties
Part name
Support sleeve
Adjustment sleeve
Big gear
Small gear
The meshing clearance of the bevel gear of the crusher shall comply with the provisions of Table 3. Table 3
Crusher specifications
Note: The meshing clearance of the gear is the clearance at the big end of the gear teeth. 4.3.4
0.51~1.02
0.51~1.02
0.51~1.02
0.76~1.27
1.02~1.52
1.27~1.78
2.34~3.12
2.34~3 .12
2.34~3.96
2.34~3.96
3.18~4.78| |tt||3.18~7.93
After the bowl-shaped bearing frame of the crusher is assembled, the clearance between its lower end face and the upper surface of the eccentric sleeve shall comply with the provisions of Table 4. Table 4
Crusher specifications
Original mm
When the discharge port is adjusted to the minimum size,
The discharge clearance deviation between the crushing wall and the whitening wall in the entire circumference after the crusher is assembled,
Standard crusher shall not exceed 25% of the discharge port size; short-head crusher shall not exceed 20% of the discharge port size. No-load test requirements
After the crusher is assembled, the no-load test shall be carried out continuously for not less than 2 hours at the manufacturer using an electric motor with the same working speed and a lubrication station with similar performance.
4.4.2 The speed of the crushing cone shall not be greater than 15r/min. 4.4.3 Periodic noise is not allowed in the bevel gear. 4.4.4 The oil supply pressure should be within the range of 0.04MPa0.1MPa, and the maximum return oil temperature should not exceed 50℃. 4.5 Load test requirements
4.5.1 Continuous operation for 72h.
4.5.2 The oil supply pressure should be within the range of 0.04MPa～0.1MPa, and the maximum return oil temperature should not exceed 60℃. 4.6 Safety and health requirements
The crusher should have an interlocking system for electrical protection devices and its auxiliary equipment. 4.6.2 The crusher spring overload protection device should be safe and reliable. 4.6.3 Safety operation signs should be fixed in obvious positions of the crusher. 4.6.4 The noise sound pressure level of the crusher when running without load should not exceed 90dB (A). 4.7 Complete supply scope of crusher
JB/T69882002
The complete supply scope of crusher includes: main engine, motor and low-pressure control equipment, lubrication station, hydraulic station and special tools. 5 Test methods and inspection rules
5.1 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressure
≤32MPa
>32MPa
Test pressure
5.2 When checking the gear meshing clearance, the eccentric sleeve shall be pressed against the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the drive shaft, press the back of the pinion against the end face of the drive shaft bushing, and use a feeler gauge to check the clearance between the oil slinger and the other end face of the drive shaft bushing.
5.4 The size of the discharge port can be checked by using a lead ball fixed on a steel wire and measuring at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four lead balls after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the predetermined size of the discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then according to the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no-load at the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher shall be disassembled for inspection. The friction parts shall not be seriously burned, blackened or worn. The slightly burned parts shall be properly treated before leaving the factory.
5.9 The load test run shall be carried out by the user and meet the following requirements: a) No-load operation shall comply with the provisions of 4.4; b) Half-load operation for 4h:
c) Full-load operation shall comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher shall be fixed with a product label in a conspicuous position, and the content is as follows: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 In general, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13-1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list:
b) Product factory certificate (certificate): installation and operation instructions, general drawings, component drawings, electrical control diagrams, lubrication and hydraulic system diagrams. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not rusted or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
200288696mm. Table 2
Mechanical properties
Parts name
Support sleeve
Adjusting sleeve
Big gear
Small gear
The meshing clearance of bevel gears of crusher shall comply with the provisions of Table 3. Table 3
Crusher specifications
Note: The meshing clearance of gears is the clearance at the big end of gear teeth. 4.3.4
0.51~1.02
0.51~1.02
0.51~1.02
0.76~1.27
1.02~1.52
1.27~1.78
2.34~3.12
2.34~3 .12
2.34~3.96
2.34~3.96
3.18~4.78| |tt||3.18~7.93
After the bowl-shaped bearing frame of the crusher is assembled, the clearance between its lower end face and the upper surface of the eccentric sleeve shall comply with the provisions of Table 4. Table 4
Crusher specifications
Original mm
When the discharge port is adjusted to the minimum size,
The discharge clearance deviation between the crushing wall and the whitening wall in the entire circumference after the crusher is assembled,
Standard crusher shall not exceed 25% of the discharge port size; short-head crusher shall not exceed 20% of the discharge port size. No-load test requirements
After the crusher is assembled, the manufacturer shall use the motor with the same working speed and the lubrication station with similar performance to conduct a no-load test for no less than 2 hours.
4.4.2 The speed of the crushing cone shall not be greater than 15r/min. 4.4.3 Periodic noise is not allowed in the bevel gear. 4.4.4 The oil supply pressure should be within the range of 0.04MPa0.1MPa, and the maximum return oil temperature should not exceed 50℃. 4.5 Load test requirements
4.5.1 Continuous operation for 72h.
4.5.2 The oil supply pressure should be within the range of 0.04MPa～0.1MPa, and the maximum return oil temperature should not exceed 60℃. 4.6 Safety and health requirements
The crusher should have an interlocking system for electrical protection devices and its auxiliary equipment. 4.6.2 The crusher spring overload protection device should be safe and reliable. 4.6.3 Safety operation signs should be fixed in obvious positions of the crusher. 4.6.4 The noise sound pressure level of the crusher when running without load should not exceed 90dB (A). 4.7 Complete supply scope of crusher
JB/T69882002
The complete supply scope of crusher includes: main engine, motor and low-pressure control equipment, lubrication station, hydraulic station and special tools. 5 Test methods and inspection rules
5.1 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressure
≤32MPa
>32MPa
Test pressure
5.2 When checking the gear meshing clearance, the eccentric sleeve shall be pressed against the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the drive shaft, press the back of the pinion against the end face of the drive shaft bushing, and use a feeler gauge to check the clearance between the oil slinger and the other end face of the drive shaft bushing.
5.4 The size of the discharge port can be checked by using a lead ball fixed on a steel wire and measuring at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four lead balls after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the predetermined size of the discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then according to the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no-load at the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher shall be disassembled for inspection. The friction parts shall not be seriously burned, blackened or worn. The slightly burned parts shall be properly treated before leaving the factory.
5.9 The load test run shall be carried out by the user and meet the following requirements: a) No-load operation shall comply with the provisions of 4.4; b) Half-load operation for 4h:
c) Full-load operation shall comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher shall be fixed with a product label in a conspicuous position, and the content is as follows: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 In general, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13-1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list:
b) Product factory certificate (certificate): installation and operation instructions, general drawings, component drawings, electrical control diagrams, lubrication and hydraulic system diagrams. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not rusted or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
200288696mm. Table 2
Mechanical properties
Parts name
Support sleeve
Adjusting sleeve
Big gear
Small gear
The meshing clearance of bevel gears of crusher shall comply with the provisions of Table 3. Table 3
Crusher specifications
Note: The meshing clearance of gears is the clearance at the big end of gear teeth. 4.3.4
0.51~1.02
0.51~1.02
0.51~1.02
0.76~1.27
1.02~1.52
1.27~1.78
2.34~3.12
2.34~3 .12
2.34~3.96
2.34~3.96
3.18~4.78| |tt||3.18~7.93
After the bowl-shaped bearing frame of the crusher is assembled, the clearance between its lower end face and the upper surface of the eccentric sleeve shall comply with the provisions of Table 4. Table 4
Crusher specifications
Original mm
When the discharge port is adjusted to the minimum size,
The discharge clearance deviation between the crushing wall and the whitening wall in the entire circumference after the crusher is assembled,
Standard crusher shall not exceed 25% of the discharge port size; short-head crusher shall not exceed 20% of the discharge port size. No-load test requirements
After the crusher is assembled, the no-load test shall be carried out continuously for not less than 2 hours at the manufacturer using an electric motor with the same working speed and a lubrication station with similar performance.
4.4.2 The speed of the crushing cone shall not be greater than 15r/min. 4.4.3 Periodic noise is not allowed in the bevel gear. 4.4.4 The oil supply pressure should be within the range of 0.04MPa0.1MPa, and the maximum return oil temperature should not exceed 50℃. 4.5 Load test requirements
4.5.1 Continuous operation for 72h.
4.5.2 The oil supply pressure should be within the range of 0.04MPa～0.1MPa, and the maximum return oil temperature should not exceed 60℃. 4.6 Safety and health requirements
The crusher should have an interlocking system for electrical protection devices and its auxiliary equipment. 4.6.2 The crusher spring overload protection device should be safe and reliable. 4.6.3 Safety operation signs should be fixed in obvious positions of the crusher. 4.6.4 The noise sound pressure level of the crusher when running without load should not exceed 90dB (A). 4.7 Complete supply scope of crusher
JB/T69882002
Complete supply scope of crusher includes: main engine, motor and low-pressure control equipment, lubrication station, hydraulic station and special tools. 5 Test methods and inspection rules
5.1 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressureWww.bzxZ.net
≤32MPa
>32MPa
Test pressure
5.2 When checking the gear meshing clearance, the eccentric sleeve shall be pressed against the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the drive shaft, press the back of the pinion against the end face of the drive shaft bushing, and use a feeler gauge to check the clearance between the oil slinger and the other end face of the drive shaft bushing.
5.4 The size of the discharge port can be checked by using a lead ball fixed on a steel wire and measuring at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four-point lead ball after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the predetermined size of the discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then calculating it based on the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no-load at the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher shall be disassembled for inspection. The friction parts shall not be seriously burned, blackened or worn. The slightly burned parts shall be properly treated before leaving the factory.
5.9 The load test run shall be carried out by the user and meet the following requirements: a) No-load operation shall comply with the provisions of 4.4; b) Half-load operation for 4h:
c) Full-load operation shall comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher shall be fixed with a product label in a conspicuous position, and the content is as follows: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 In general, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13-1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list:
b) Product factory certificate (certificate): installation and operation instructions, general drawings, component drawings, electrical control diagrams, lubrication and hydraulic system diagrams. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not rusted or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
200288691 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressure
≤32MPa
>32MPa
Test pressure
5.2 When checking the meshing clearance of the gears, the eccentric sleeve shall be pressed against the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the transmission shaft, the back of the pinion shall be pressed against the end face of the transmission shaft bushing, and the clearance between the oil thrower ring and the other end face of the transmission shaft bushing shall be checked with a feeler gauge.
5.4 To check the size of the discharge port, the lead ball fixed on the steel wire can be used to measure at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four-point lead ball after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the size of the predetermined discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then calculated according to the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no load in the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher should be disassembled for inspection. There should be no serious burns, blackening, and wear on the friction parts of the crusher. The slightly burned parts need to be properly handled before leaving the factory.
5.9 The load test is carried out by the user and meets the following requirements: a) No load operation should comply with the provisions of 4.4; b) Half load operation for 4h:
c) Full load operation should comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher should have a product label fixed in a conspicuous position, with the following contents: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 Under normal circumstances, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13—1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list: b) Product factory certificate (certificate): Installation and operation instructions, general drawing, component drawing, electrical control diagram, lubrication and hydraulic system diagram. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not corroded or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
200288691 The manufacturer shall conduct a pressure-maintaining and leakage-free test on the hydraulic system, and the test pressure shall comply with the provisions of Table 5. Table 5
Working pressure
≤32MPa
>32MPa
Test pressure
5.2 When checking the meshing clearance of the gears, the eccentric sleeve shall be placed close to the frame bushing on one side of the pinion, and the lead pressing method shall be used for measurement. 5.3 When checking the axial clearance of the transmission shaft, the back of the pinion shall be placed close to the end face of the transmission shaft bushing, and the clearance between the oil thrower ring and the other end face of the transmission shaft bushing shall be checked with a feeler gauge.
5.4 To check the size of the discharge port, the lead ball fixed on the steel wire can be used to measure at four points roughly evenly distributed around the crushing chamber. The arithmetic mean of the size of the four-point lead ball after extrusion is the size of the discharge port. The diameter of the lead ball used for measurement should be larger than the size of the predetermined discharge port. 5.5 The processing capacity of the crusher can be calculated by using a belt scale or by weighing the material on the unit length of the feeding conveyor belt, and then calculated according to the conveyor belt speed. 5.6 The noise measurement should comply with the provisions of GB/T3768-1996. 5.7 After each crusher passes the assembly inspection, it should be tested at no load in the manufacturer and meet the requirements of 4.4. 5.8 After the test run, the crusher should be disassembled for inspection. There should be no serious burns, blackening, and wear on the friction parts of the crusher. Minor burns must be properly handled before leaving the factory.
5.9 The load test is carried out by the user and meets the following requirements: a) No load operation should comply with the provisions of 4.4; b) Half load operation for 4h:
c) Full load operation should comply with the provisions of 4.5; d) There is no abnormal change in current:
, e) Feeding and discharging are normal.
6 Marking, packaging, transportation and storage
6.1 The crusher should have a product label fixed in a conspicuous position, with the following contents: a) Product model and name
b) Main technical parameters:
JB/T6988—2002
Factory number and date:
d) Manufacturer's name.
6.2 Before packaging, the oil stains on the machine parts should be removed, and all exposed processed surfaces should be coated with anti-rust oil. 6.3 Under normal circumstances, the crusher should be disassembled and packaged for transportation. When transportation conditions permit, small crushers can be shipped as a whole and meet the requirements of land and water transportation and loading.
6.4 The packaging of the crusher should comply with the provisions of JB/T5000.13—1998. 6.5 The text markings on the outer wall of the packaging box should comply with the provisions of GB/T1912000. 6.6 The technical documents supplied with the crusher include: a) Packing list: b) Product factory certificate (certificate): installation and operation instructions, general drawing, component drawing, electrical control diagram, lubrication and hydraulic system diagram. Before installing and using the crusher, the parts should be properly stored to ensure that the parts are not corroded or damaged. 6.7
People's Republic of China
Mechanical Industry Standard
Spring Cone Crusher
JB/T6988—2002
Published and distributed by Machinery Industry Press
No. 22 Baiwanzhuang Street, Beijing
Postal Code: 100037
Format 890mm×1240mm
1/16·0.75 printing sheet·17,000 words
1st edition, 1st printing in December 2002
Price: 12.00 yuan
Book number: 15111·7091
Website: http://www.cmpbook.comEditorial department phone:
(010)88379779
Direct sales center phone:
(01088379693
All books without anti-counterfeiting labels on the cover are pirated
Copyright reserved
Slow-handedness will be investigated
20028869
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