Some standard content:
ICS 73.120
Machinery Industry Standard of the People's Republic of China
JB/T 1388—2002
Replaces JB/T1388—1992
Compound Swing Jaw Crusher
Singletoggle Jaw Crusher
Published on 16 July 2002
Published on 1 December 2002
State Economic and Trade Commission of the People's Republic of ChinaForeword,
Normative Reference Documents
Terms and Definitions
Types and Basic Parameters
Technical Requirements
General Requirements.
Appearance Quality
Parts Quality
Requirements for the Whole Machine
Safety and Health Requirements
Requirements for No-load Test.
Technical requirements for electric control box
Test methods,
Inspection rules.
Inspection classification
Factory inspection.
Type inspection
8 Marking, packaging, transportation and storage
9 Manufacturing assurance
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Appendix A (informative appendix) Composition and calculation of discharge particle size, Appendix B (informative appendix) Determination of processing capacity, the second
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JB/T 1388—-2002
JB/T 1388—2002
This standard replaces JB/F1388-1992 "Compound Swing Type Crusher". The main changes of this standard compared with JB/T1388-1992 are as follows: - Add PE—1200×1500 specification;
Cancel the overall dimensions in Table 1;
Change the maximum temperature of the idle running bearing from 70℃ to 75℃, and increase the bearing temperature rise by 35℃; The discharge particle size composition curve is changed to Appendix A; The determination method of processing capacity is changed from one to two and is included in Appendix B. Appendix A and Appendix B of this standard are informative appendices. 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). The drafting unit of this standard: Shanghai Jianshe Road and Bridge Machinery Equipment Co., Ltd. The main drafters of this standard: Li Benren, Liu Guiquan, Wang Yicheng. The previous versions of the standards replaced by this standard are: -JB 1388-1974, JB1388--1983, JB/T1388--1992. Scope
Compound-swing jaw crusher
JB/T 1388--2002
This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage and manufacturing guarantee of compound-swing jaw crusher.
This standard is applicable to compound-swing jaw crushers (hereinafter referred to as crushers) for crushing various ores or rocks with a compressive strength limit below 250MPa. 2 Normative references
The clauses in the following documents become the clauses of this standard through the reference of this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any un-dated referenced documents, the latest version shall apply to this standard. GB/T191—2000 Pictorial symbols for packaging, storage and transportation (eqvISO780:1997) GB/T699—1999 High-quality carbon structural steel
GB/T700—1988 Carbon structural steel (negDIN630:1987) GB/T 1222—1984 Spring steel (neq JIS G 4311:1987) GB/T 3768—1996
, Acoustics Sound pressure method for determining the sound power level of noise source-Simplified method using envelope measurement surface above the reflecting surface (eqv ISO 3746:1995)
GB/T 5226.1--1996
GB/T 5680—1998
GB/T 8923—1988
GB/T 11352—1989
GB/T 13306—1991
GB/T 13384——1992
JB/T 5000.3—1998
Industrial machinery and electrical equipment Part 1: General technical conditions (eqvIEC60204-1:1992) High manganese steel castings
Surface rust grade and rust removal grade of steel before painting (eqvISO8501-1:1988) Carbon steel castings for general engineering (negISO3755:1975) Signs
General technical conditions for packaging of electromechanical products
General technical conditions for heavy machinery Welded parts
JB/T:5000.6—19981
General technical conditions for heavy machinery Castings
JB/T5000.15--1998 General technical conditions for heavy machinery Non-destructive testing of forged steel parts 3 Terms and definitions
The following terms and definitions apply to this standard. 3.1
Feed opening size size of feed opening When the crusher is placed horizontally, at the upper end of the crushing chamber, when the movable jaw plate and the fixed jaw plate are farthest apart, the horizontal distance between the top of one jaw plate and the root of the other jaw plate, and the length dimension between the left and right guard plates. 3.2
Maximum feed size max-feed size
The maximum allowable material size limited by the crusher feed opening. 3.3
Width of open-side discharging opening width of open-side discharging opening When the crusher is placed horizontally, at the lower end of the crushing chamber, when the movable jaw plate and the fixed jaw plate are farthest apart, the shortest horizontal distance between the top of one jaw plate and the root of the other jaw plate.
JB/T 1388—2002
Adjusting range of discharging opening The width of the discharging opening varies from the minimum value to the maximum value. 3.5
Crusher processing capacity
capacity
The amount of material passing through the crusher per unit time. 3.6
Period of first heavy repairThe time from normal use to the time when the movable head, eccentric shaft and frame must be replaced or completely dismantled and repaired to restore their original functions. 4 Type and basic parameters
4.1 Type of crusher, see Figure 1. This figure does not determine the specific structure of the crusher. I
4.2 The length-to-width ratio of the feeding port is less than or equal to 1.7. 4.3 Method of expressing crusher model:
Feeding port length, in mm
Feeding port width, in mm
Compound swing jaw
crusher
Example:
Compound swing crusher with feeding port width of 400mm and feeding port length of 600mm: PE--400X 00
Compound swing jaw crusher
The basic parameters of the crusher shall comply with the provisions of Table 1. 4.4
Feeding port size
Nominal size
Limit deviation
Nominal size
Limit deviation
Maximum feeding size
Opening edge discharge port
Width b
Nominal size
Adjustment range
Processing capacity
Motor power
Weight (excluding motor)
Feeding port size
Nominal size
Limit deviation
Nominal size
Limit deviation
Maximum feeding size
Nominal size
Opening edge discharge port
Width h
Adjustment range
Processing capacity
Motor power
Weight (excluding motor)
PE-150X250
≥±15
PE-600 X 900
≤21000
Note 1: The determination of processing capacity and particle size composition is based on the following conditions: PE-250 × 400
≥±20
PE--400× 600
≤7000
PE—750X1060
≥±30
PE—-900 X 1200
≥±35
a) The loose density of the crushed material is 1.6t/m2, ore with a compressive strength of 150MPa (natural state): b) The jaw plate is a new jaw plate, and the discharge opening width is the nominal size: c) The working condition is continuous feeding:
d) For the material particle size composition, please refer to Appendix A.
JB/T 1388--2002
PE--500 X750
≥±25
PE—1200× 1500
≥±60
Note 2: The specification series listed in Table 1 can be adjusted and developed according to market and user requirements, and its basic parameters such as processing capacity shall be in accordance with the provisions of the design technical documents. 5 Technical requirements
5.1 General requirements
5.1.1 The crusher shall comply with the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. The crusher transmission device is divided into two types: right-mounted and left-mounted. 5.1.2
The parts of the same type of crusher should be interchangeable. 5.1..3
The replacement of wearing parts such as jaw plate and guard plate should be convenient, the location of lubrication points should be reasonable, and the adjustment device should be flexible. 5.1.4
1) When facing the feed port, the transmission device is on the right side of the crusher, which is called right installation, and vice versa. 3
JB/T 1388—2002
5.1.5 The bearing should have a good sealing and dustproof device, and the friction surface that needs lubrication should have dustproof measures. 5.1.6 The crusher should be able to be connected with a dust suction device, which is made by the user. 5.2 Appearance quality
5.2.1 The main machined surface should not have burrs, bumps and rust. 5.2.2
The surface of the welded frame of the crusher should be flat, and there should be no visible unevenness during self-test. 5.2.3 The surface of steel parts should be derusted before painting, and the derusting level should not be lower than the requirements of St2 in GB/T8923-1988. 5.2.4 The painted surface should be smooth and uniform in color, and should not have defects such as sagging, peeling and missing paint. 5.3 Parts quality
The mechanical properties of the materials used to manufacture the main parts of the crusher should not be lower than the requirements of the materials described in Table 2. Table 2
Part name
Eccentric shaft
ZG270—500 (GB/T 11352-1989) or Q235 (GB/T 700-1988)45 steel (GB/T699-1999)
ZG270—500 (GB/T 11352-1989) or Q235 (GB/T 700-1988)ZGMn13—2 (GB/T 5680-1998)
60Si2Mn (GB/T 1222-1984)
5.3.2 When necessary, the eccentric shaft shall be subjected to ultrasonic testing and shall comply with the requirements of Grade V in JB/T5000.15-1998. When other methods are used for flaw detection, the relevant standards shall be met. 5.3.3 The welding quality of welded structural parts shall comply with the provisions of JB/T5000.3--1998. 5.3.4 The dimensional tolerance and angular tolerance of the main welded structural parts such as the frame shall comply with the provisions of Class B in JB/T5000.3-1998, and the form and position tolerance shall comply with the provisions of Class F. Generally, the dimensional tolerance and angular tolerance of welded structural parts shall comply with the provisions of Class C in JBT5000.3-1998, and the form and position tolerance shall comply with the provisions of Class G.
5.3.5 The casting quality of the cast steel frame shall comply with the provisions of JB/T5000.6-1998. 5.4 Requirements for the whole machine
5.4.1 The feed opening size, motor power and other specifications and label technical parameters of the crusher shall comply with the provisions of Table 1 in 4.4. 5.4.2
The width of the discharge opening of the crusher should be uniform. The width and adjustment range of the discharge opening shall comply with the provisions of Table 1 of 4.4. 5.4.3 The complete set of crushers shall include:
a) Crusher;
b) V-belt;
c) Anchor bolts;
d) Special tools;
e) Electric control box, motor, motor guide rail and spare parts can be provided according to the contract provisions of the ordering unit. 5.4.4 The type and compressive strength of materials shall be based on the on-site material test report or the rock report of the geological department. 5.4.5 The processing capacity shall be measured when the width b of the open edge discharge opening is at the nominal value. For the composition of the discharge particle size, please refer to Appendix A. 5.4.6 The maximum discharge particle size greater than 1.6b shall not exceed 5%. Under the working conditions of using the new plate, the weighted average size of the discharge particle size shall not be greater than b.
5.4.7 The first overhaul period of the crusher:
a) less than PE900×1200 should not be less than 8000h; b) greater than or equal to PE-900×1200 should not be less than 12000h. 5.5 Safety and health requirements
5.5.1 The sharp edges of the exposed cutting surface of the crusher should be blunt. 5.5.2 The noise sound pressure level of the crusher when running at no load should not exceed 85dB (A). 4
JB/T 1388—2002
5.5.3 The rotating transmission parts of the crusher should have safety protection devices. Safety protection devices prepared by the user should be described in the product manual and contract.
5.5.4 In the event of falling into non-crushed objects or severe overloading, the main parts of the crusher, such as the frame, movable jaw, eccentric shaft, flywheel, and groove wheel, will not be damaged or the mechanical, electrical, hydraulic and other overload protection will play a protective role. 5.6 No-load test requirements
5.6.1 The movable jaw and moving parts of the crusher should rotate flexibly without jamming. There should be no abnormal noise during no-load operation. 5.6.2 The crusher should operate continuously at no load for no less than 2 hours, but the test run can only be ended after the bearing temperature has stabilized for 1 hour. 5.6.3 When the crusher is running at no load, the maximum temperature of the rolling bearing shall not exceed 75°C, and the temperature rise shall not exceed 35°C. 5.7 Technical requirements for electric control box
5.7.1 The operation panel of the electric control box should have an operation indicator. 5.7.2 The electric control box should have a door-opening power-off function or the protective shell can be opened only when tools are used. 5.7.3 The electric control box should be effectively grounded and have obvious grounding marks. 5.7.4 The insulation resistance of the electric control box should be greater than 1M2. 5.7.5 The electric control box should be subjected to a 1s withstand voltage test. The test voltage is generally twice the rated power supply voltage of the electrical equipment or 1000V. There is no flickering during the test for 1s. Components that are not suitable for this test should be disconnected during the test. 6 Test method
The rust removal quality of welded structural parts can be inspected by sample comparison method or visual inspection. 6.1
The physical and chemical tests of the materials of the main parts shall be based on the material quality certificate or physical and chemical test report. 6.2
The noise test method of the crusher when running at no load shall comply with the provisions of GB/T3768-1996. The rolling bearing temperature test uses a thermometer inserted into the oil filling hole of the bearing seat and measures every 20 minutes until the temperature stabilizes. 6.4
Inspect the nominal values of the crusher feed opening size and motor power and other specification parameters to be consistent with the product label. 6.5
Measurement of the width b of the crusher's open-side discharge opening: The crusher is required to be placed horizontally. When the movable jaw plate and the fixed jaw plate are farthest apart, use a steel ruler or a card plate to measure the shortest horizontal distance between the top of one jaw plate and the root of the other jaw plate. When ultrasonic flaw detection is used for the eccentric shaft, the method shall comply with the provisions of JB/T5000.15--1998. 6.7
6.8 The insulation resistance of the electric control box and the method of 1s withstand voltage test shall comply with the provisions of GB/T5226.1-1996. 6.9 Determination of the crusher's processing capacity:
6.9.1 The processing capacity shall be measured under the conditions described in Table 1 of 4.4 when the width of the open-side discharge opening is at the nominal value. The test shall be carried out when the crusher is in continuous operation and the loading capacity is 70% to 100% of the crushing chamber height. 6.9.2 The material to be crushed in the test shall be less than the weight W specified in Table 3, and the test shall be carried out for no less than three times. For the determination of processing capacity, refer to the provisions of Appendix B.
Unit: kg
150×250
250×400
400×600
500X750
600 X 900
Note: W' is the sampling weight when the crushed finished material is classified, and its weight is referred to Appendix A. PE-
750×1060
900×1200
1200×1500
6.10 Determination of maximum feed size When b is the nominal value, a single piece of material to be crushed that meets the maximum feed size specified in Table 1 of 4.4 is put into the operating crushing chamber to observe whether there is slippage and spitting during the entire crushing process, so as to determine whether its maximum feed size can meet the requirements of this standard.
JB/T 1388—-2002
7 Inspection rules
7.1 Inspection classification
Inspection is divided into factory inspection and type inspection
7.2 Factory inspection
7.2.1 Each crusher must be inspected and qualified by the quality inspection department according to the factory inspection items before it can be shipped, and a product certificate of conformity should be attached. 7.2.2 The following items are factory inspection items: 5.1, 5.2, 5.3, 5.4.1~5.4.3, 5.5.1~~5.5.3, 5.6, 5.7.1~~5.7.4, 8.1~8.5 of this standard.
7.2.3 The 1s withstand voltage test of the electric control box is a random inspection item. 7.3 Type inspection
7.3.1 Type inspection should be carried out when one of the following situations occurs. New product trial production: www.bzxz.net
b) Old product transfer to another factory for production;
Product structure, materials and process have been greatly improved, which may affect product performance; c
Resume production after long-term suspension:
Legal quality supervision and inspection agency proposes type inspection. e)
Type inspection items shall be inspected according to all items specified in this standard. For type inspection, one unit shall be selected from qualified human library products for inspection. If it fails in the inspection, double sampling shall be carried out for re-inspection. 7.3.3
If the re-inspection is qualified, the batch of products shall be judged as qualified. If there is still one unit that fails, the batch of products shall be judged as unqualified products. 8 Marking, packaging, transportation and storage
The crusher shall be fixed with product labels in obvious positions, and its type and size shall comply with the provisions of GB/T13306-1991. 8.1
The content on the label should include:
a) product model and name;
main technical parameters:
manufacturer's name;
d) factory number;
e) date of manufacture.
8.2 The technical documents accompanying the crusher should include:
a) certificate of conformity:
b) instruction manual:
c) packing list or packing catalogue;
d) installation foundation drawing:
consumable parts (accessories) catalogue.
8.3 Before packaging, the crusher should be cleaned of oil and water marks, and all exposed processed surfaces should be painted with anti-rust grease. 8.4 The crusher packaging requirements should comply with the provisions of GB/T13384-1992. Each piece (box) of packaging and box packaging should have the following marks: a) Product model and name;
Manufacturer's name;
Factory number and box number:
d) Volume (length, width, and height);
e) Net weight and gross weight:
f) Destination (port) and consignee.
8.5 The packaging storage and transportation graphic signs should comply with the provisions of GB/T191-2000. 8.6 During storage, the crusher should be regularly inspected to prevent rust. Electrical equipment should have necessary moisture-proof measures. 6
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