This standard applies to the performance test of rock drilling machinery and pneumatic tools, but not to the performance test of impact air screwdrivers and air triggers. GB/T 5621-1999 Performance test method for rock drilling machinery and pneumatic tools GB/T5621-1999 Standard download decompression password: www.bzxz.net

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National Standard of the People's Republic of China
GB/T:56211999
eyyIS02787:1984
Test methads of performance for rock drillingmachines and pncumatic tools1999-06-14 Issued
Implemented on 1999-11-01
Issued by State Quality and Technical Supervision Bureau
CB/T5621—1999
This standard is equivalent to IS02787, 16849 and is used for performance test of rotary and impact pneumatic tools. The main technical differences between this standard and ISO27A7:1444 are as follows: 1) The standard expands the scope of application and is consistent with the current relevant standards of China. Its name is changed to "performance test method for rock drilling machinery and pneumatic tools". 2) The "definition" in IS2797 is included in the entire content. 3 Some errors in the appendix of IS02787 are corrected. This standard is a revision of the performance test method for rock drilling machinery and pneumatic tools in GB/T5621-1985. Compared with GB/T5621-1985, the main technical content of this standard has been changed as follows: 1) "Foreword, JS> and referenced standards are added, 2) "Definition" is cancelled. 3 Some errors in the original standard are corrected. Appendix 4, Appendix H and Appendix C of this standard are the appendices of the standard. This standard is proposed by the State Administration of Industry and Commerce. This standard is the work of the National Pneumatic Tool Standardization Technical Committee. The drafting unit of this standard is Tianshui Pneumatic Tool Research Institute. The main organizers of this standard are Wei Wanjiang, Zhang Yucheng, Lang Lanwei, Shi Shujiu and Zhao Baozhu. This standard was first published in November 1985, and this is the first revision. G8/T 5527-1999
ISO Foreword
ISC (International Organization for Standardization) is a world federation formed by national standardization bodies (ISC members). The work of formulating international standards is usually undertaken by the Technical Committee. For the topics determined by the technical committee, each member has the right to express his or her views on the committee. International organizations, government agencies and non-governmental organizations that maintain contact with ISC can also participate in the relevant work of the committee. The draft international standards adopted by the technical committee are recognized as international standards by the ISC Review Committee to obtain the views of member groups. International Standard ISO 2787 was prepared by 150/TC:118 Technical Committee on Compressors, Pneumatic Tools and Pneumatic Engines and sent to each member body in September 1982. The member bodies of the following countries approved the standard: Austria, Belgium, Czech Republic, Spain, France, Spain, United States, United States, and the United States. This standard is the second edition and is a revision of the original edition (ie ISO 2787:1974). 1 Scope
National Standard of the People's Republic of China
Test methods for performance of rock drills and pneumatic tools
5621—1999
eyv1502797.1984
GB/T51RE
This standard is applicable to the performance test of rock drills and pneumatic tools (hereinafter referred to as machines), excluding the performance test of dry-hammer type pneumatic knives and pneumatic tools.
2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through their use in this standard. This standard is valid for all new versions published. All standards will be adjusted. The latest version of this standard should be used. GB3100-1293 International System of Units and Its Application GB3101-1393 General Principles of Units and Symbols GB/T4U74-18 Compressors and Pneumatic Tools Pressure GB/T6247-1986 Nomenclature of Machinery and Pneumatic Tools 3.1 Terminology The terms used in this standard shall comply with the provisions of GB/5247. 3. 2 Plate and unit recommendation number
The unit sieve number adopted in this standard should comply with the provisions of GB3100 and GB3101, see Table 1: Table 1
Name
Living ink mutual minister
Kidney blue sense tube inner classics
Chong Wei Shi
Quantity large beat load phase moment
Lan Fu turn trace
Chong report rate
Road to pressure
Medical general number
National Beijing broken quantity technology supervision bureau 1999-06-14 approved unit name training
Mi Cha Lai
Niu Guo Shui
Transfer special points
Unit school
1999 11 01 3.3 Notes on the Quantity
Atmospheric Pressure
Volume
Impulse
3.3 Notes on the Quantity
Operating Conditions
Starting Conditions (n ​​or ≤)
No Negative Conditions
G#/T5621—1999
Table 1 (Complete)
Symbol of the Quantity
P Under certain power output conditions
3.4 Performance Data
3.4.1 Compressed Air Pressure (Recommended Pressure) when the Test Data are Valid
3.4.2 Transmission Rate
3.4. 3 Gas consumption at rated output power 3.4.4 Idling gas consumption m 3.4.5 Speed ​​at given output power 3.4.6 Torque at given power 3.4.7 Starting torque Maximum starting torque Unit name Note 1 Starting torque is measured in accordance with 4.17 and 4.12 of H/T 6317-1PR6. 3.4.8 Idling speed m 3.4.9 No load factor f 3.4. 10 Impact energy c
Impact frequency
Maximum tightening torque
4 Classification of machine
Description of machine
Machine number
4.1.2 Standard machine
4.1.3 Quantity of machine seat
4. 1.4 Dimensions of machine
4.7.5 Required diameter and mass
4. 1. 6 Appropriate theoretical stroke
Design! Product number. Unit diameter number
The machine should include the equipment required for the machine and all the equipment, but not including the working tools, various joints, pipes and frames. If the machine mass required by 4.1.2 is specified, the total length of the machine and the characteristic dimensions of a certain machine should be indicated in any case, and the maximum outer diameter and mass after impact.
The length of axial movement of the tool in the working room after the upper lip handle is:
4.1.7 Recommended length of the inner diameter of the tool
4.1.8 Operation T: other models and dimensions 4.1.9 Tool tail handle and village bend
4.1.10 Tool positioning adjustment
4.1.11 Special and additional features
4.2 Data given for various types of machines
GB/T 5621—1999
The data of this specification must be given. Other data may be given if necessary. 4.2.1 Impact machines without rotation
Machine model (see 4.1.1)
Machine mass (see 4.1.3)
Machine dimensions (see 1.1.4)
Applicable equipment diameter and mass (see 41.5)
Theoretical principle of equipment (see 4.1.6)
Inner diameter and length of hose (see 4.1. 7)
Type and size of working tools (see 4.1.8) 1. Product quality (see 4.1.≤)
Maintenance pressure (3.4.1)
Load gas consumption (see 3.4.3)
Impact energy (see 3.4.10)
Impact frequency (see 3.4.11)
4.2.2 Type of machine with rotary impact (such as rock crusher, etc.) (1.1)
Mass of machine (see 4.1.3)
Machine dimensions (see 4.1.4)
Diameter and mass of the rear sleeve (mass of the piston, including the nut 1 (see 4.1.5))
Recommended theoretical stroke (see 4.1.6)
Recommended hose inner diameter and length (see 4.1.7) > Type and size of working tool (see 4-1.8)
Tool positioner (see 4.1.1C)
Other and additional features (see 4.1.11) Compressed air pressure (see 3.4.1)
Load air consumption (g 3.4.3)
Impact energy (see 3.4.10)
Impact rate (see 3.4.11)
Idle speed (see 3.4.8)
4.2.3 Rotary machines
Machine model (see 4.1.1)
Required mass of the machine (see 4.1.3)
Machine dimensions (see 4.1.4)
Model and dimensions of the working tool (see 4.1.8) Note
Special range and length of air supply hose and connector: according to the requirements of each product standard,
According to the requirements of each product standard,
Type of rock drill or rock drill, etc.
Tool and accessories (see 4.1.9)|| tt||Special and additional features (see 4.1.11) Recommended air pressure (see 3.4.1)
Maximum daily input power (see 3.4.2)
Load air consumption (see 3.4.3)
Idling air consumption (see 3.4.4)
Load speed (see 3.4.5)
Idling speed (see 3.1.8)
Torque (see 3.4.7)
4.2.4 Pneumatic screwdrivers and pneumatic actuators
Machine model (see 4.1.1)
Machine lift (see 1.3)
Machine dimensions (see 4.1.4)) |tt||Model and size of industrial tools see 4.1.1
Opening materials and accessories (see 4.1.5)
Special and additional characteristics (see 4.1.11) Compressor (see 1.1.1)
Maximum output power (see 3.4.2)
Idling consumption (see 8.4.4)
Maximum starting torque range (see 3.4.)
Idling torque (see 3.4.8)
5 Performance test method
5.1 Performance test method
GB/T5621
5.1.1 Test 1. The test should be carried out by qualified test personnel. The test equipment, instruments and equipment used must be calibrated according to the standard method. 5.1.2 The test conditions should be within the following specified range: Air 6kPa10kPa: wwW.bzxz.Net
Environmental temperature: 20℃±2℃;
Compressed air temperature±5℃
During the test, any deviation from the specified conditions should be noted in the test report. The test report format is shown in Appendix A (Standard Appendix) and Appendix H (Standard Appendix).
5.1.3 The test should be carried out under the effective pressure of 0.63MP0.15M. If the machine is tested with different pressures (up to 0M), the pressure should also be stated in the test report. What kind of pressure is used should be maintained under all test conditions.
5.1.4 The pressure resistance point is determined according to the type of tool used (see figure). 5.1.4.1 The working pressure of the rotating tool should be measured in front of its air inlet. 5.42 The impact tool should take into account the influence of pulsating air on the performance of the test. The length of the pipe from the test point to the test machine should be at least 3 meters, preferably nearly 3 meters. The inner diameter of the continuous pipe from the pressure point to the test machine should comply with the product design requirements and be stated in the test report.
5.1.5 Description of hazards, etc. In addition, the output shaft rotation, impact frequency, output power and impact performance data should be measured under alternate operating conditions.
1> No pressure B7 regulations.
CB/T5621—1999
5.1.6 During the test operation, the specifications and quantity of the lubricating oil used should meet the requirements recommended by the manufacturer: 5.1.7 In order to obtain the performance data of a certain Shengdao product, it is necessary to measure several sets (at least 5 sets) and give the average value after heating. 5.2 Pressure element
5.2.1 The pressure value of 0.5 that the pressure gauge can clearly meet the maximum pressure should be between 1/4 and 3/4 of the maximum pressure of the gauge.
5.2. 2 During the test, the absolute pressure of the repelling gas at the measuring point on the air inlet is 0.73 MPa and the pressure is not more than 0.015 MPa. The machine is in operation during the pressure measurement. 5.2.3 A low-speed gas flow can be obtained at the pressure measuring point by installing a gas terminal between the air inlet of the air supply line and the machine. The gas storage chain can also attenuate the pulses in the air flow to ensure a normal flow measurement. Figure 1 shows a more suitable device. The cross-sectional area A (single image; m) of the gas barrier should meet the following requirements: A>7 × 10- × r
, qnat
is the amount of air designed by the tool (free air> amount, L/3: absolute pressure in the air pipeline: MPu
At this time, the air flow velocity is equivalent to 1.11/8.
In the test instrument, the amount of air passing through the full track can be 10% of the air exchange plate. The pressure gauge is placed at the other end of the air inlet. The center line of the pressure lead-out hole of the pressure gauge is perpendicular to the air flow direction to prevent the air from directly rushing into the positive guide hole. A protective plate is placed in front of the air inlet for a better effect (as shown in Figure 1). In order to check the full flow of the compressed air gauge The humidity of the air should be equipped with a temperature riser. 5.2.4 Before testing the product according to the device in Figure 1, the device should be calibrated according to the following method, that is, slowly increase the air flow to the maximum flow at the end of the machine, and observe the pressure gauge at the same time. The reading change in this process should not exceed 0.5%. 5.2.5 It is necessary to ensure that there is a pressure pulse in the gas transmission pipeline, such as the pressure pulse from the air pressure relay, so as not to cause errors in the pressure plate and gas consumption. If there is a slight obvious pressure pulse in the air pipe, the pressure pulse should be eliminated before the compressed air enters the measuring device, that is, a suitable air follower should be set between the air compressor and the measuring device. 5.3
5.3.1 For the torque of rotating machines, the use of direct-acting dynamometers, torque meters or brakes is not recommended. 5.3.2 When the torque of the machine under test is less than 1/1 of the rated torque of the dynamometer, this torque should not be used. 5.3.3 Correct method The error of the torque value is not integral. 5.4 Rotating speed
5.4. The instrument used for measuring the spindle speed should be a meter with sufficient accuracy and equipped with a counter for the phenomenon of lost rotation. This standard recommends the use of magnetoelectric sensors or photoelectric sensors, and the use of force methods with a meter and counter. 5.4.2 The error of the measured spindle speed according to the requirements of 6.4.1 shall not exceed +2: 5.5 Impact energy
5.5.1 For the measurement of the impact of the impact machine, the stress wave method is used. The method is shown in Appendix C (Appendix of the standard). GB/T5621—1999
5.5.2 When measuring the impact energy of a rotating external rotary machine (such as a motor) that generates rotation due to internal movement, the internal rotation mechanism should be measured under the condition that there is no external torque on the working tool. 5.5.3 If the impact energy is measured according to the method of the attached center, the error shall not exceed ±10.5.6 Impact rate
5.6.1 The impact rate can be measured by using a signal that clearly shows the correlation between the impact sensor of the measuring machine and the impact sensor. The standard recommends the use of stress pulse computer measurement method or the use of a frequency meter counting method such as an electric sensor. 5.6.? Since the impact frequency of the impact machine is derived from the reflection of the stress sensor in the working tool, the impact rate should be measured under normal working conditions of the machine. The impact rate of the drilling machine shall be measured under actual rock drilling operation conditions. 5.6.3 The impact rate obtained by correct measurement shall not exceed ±2°. 5.7 Output power 5.7.1 Rotary machine The output power of a rotary machine can be calculated from the measured spindle speed and the corresponding torsion value according to the following formula: P Formula: p Power kw;
—, N·m
au—axis angle deviation.rad/si
Wind—spindle speed,/min.
Calculate the power at each set of torque and spindle speed, and make a power-spindle speed decision curve. Estimate the spindle speed change at the time of maximum power failure from the curve. At this speed, the maximum power value of the machine can be measured. The measured power and corresponding spindle speed are listed in the test report. The error of the calculated output power of the machine depends on the measurement of the torque and the spindle speed. If these two items meet the requirements of 5.3.3 and 5.4.2, the error of the calculated output power is no more than ±5%. 5.7.7 Impact machine
The output power of the impact machine can be calculated according to the following formula: P = I-ef
Where, --- speed, kw,
impact energy;
The error of the calculated output power of the impact machine is the difference between the impact energy and the impact power measured according to 5.5.3 and 6.6.3. The error of the output power obtained by this method is no more than ±12%. 5.8 Gas-sensitive devices 5.B.1 The air consumption of gas sensors is usually expressed in free air units of 100 kPa or 100 mm. The air flow rate of the machine is calculated by converting the air flow rate of the machine into the free air of the reference atmosphere. The conditions of the reference atmosphere are: 100 kPa 100 kPa, 20 °C, humidity: 65 °C. 5.2 The air consumption of the machine can be measured by using a known auxiliary or calibrated flow meter, such as a turbine flow meter, a rotor flow meter, etc. If the working condition of the flow meter deviates from the calibration condition, the measured value should be corrected. 5.3 Results of the measurement, the measured air consumption error is less than 10:8
GB/T5621
Attachment A
(Standard recording)
Test format of air tools and pneumatic tools is tested in accordance with national standard GB/T562:19. A1 Test element
Product model
Product name
Product code
Manufacturer
A2 Test element
Atmospheric pressure (absolute pressure)
A3 Working temperature
Acceptance pressure (pressure)
Compressed air temperature
Softness length
Lubricating oil model
A4 Test result
A5 Test result
A5. 1 Load new air injection
Study speed
n, teaching tube inner diameter
Rotary machine
kP day, ambient temperature
L/9, calibration value
+/mi, idling air consumption
A5.2 The test results of speed and torque are shown in Table A1, power curve is Figure 41 Table A1
t Shaft speed (mi)
rough cabinet/·m
Calculate the driving height /h
Standard 5.3 The main shaft speed of the power is GB/I 5621 -1999
Figure A1 Power curve
A5.4 The torque of the main shaft at maximum power is shown in Table A3. Table A2
Ugly/·
Measured output power/kw
A6 Test rate
Reporter
Approval
Reporting unit
+month period
, oral period
(Appendix to the standard)
Mao Li/(·na||tt ||r/arin.
Test report format for rock crushers and pneumatic tools - impact machine (including impact machines with rotating belts)
According to the national standard GR/T5G21
B1 Test object
Product model
Product name
Product code
Special manufacture,
B2 Test conditions
Absolute atmospheric positive force)
1999 The following tests were carried out.
kIa, Environmental system
B3 Working conditions
Acceptance air pressure (gauge pressure)
Medical gas disk
Teaching camp chief
Lubricating oil type hand
Testing instrument (the suction method must be stated)
B5 Test results
B5. 1 Load air consumption
B5. 2 Test results book R1.
Frequency, H1
Average of each impact
Special when no load or failure/(·min-1)Test notes
Length of the protection rod
Diameter of the rigid rod
B6.3Punch tooth racket seat
Physical force applied to the machine under test
Test conditions of the drop test
Through the rod and the transformer
B6.7Other test notes
Orderer
Proposing unit
GA/T5621—1999
D·Inner diameter of the hose
L/,Calibration value
ww, date
, date
B2 Test conditions
Atmospheric positive pressure absolute)
1999 carried out the following test.
kIa, environmental system
B3 Working conditions
Acceptance air pressure (gauge pressure)
Medical gas plate
Teaching camp chief
Lubricating oil type hand
Testing instrument (the suction method should be stated)
B5 Test results
B5. 1 Load air consumption
B5. 2 Test results report R1.
Frequency, H1
Average of each impact
Special when no load or failure/(·min-1)Test notes
Length of the protection rod
Diameter of the rigid rod
B6.3Punch tooth racket seat
Physical force applied to the machine under test
Test conditions of the drop test
Through the rod and the transformer
B6.7Other test notes
Orderer
Proposing unit
GA/T5621—1999
D·Inner diameter of the hose
L/,Calibration value
ww, date
, date
B2 Test conditions
Atmospheric positive pressure absolute)
1999 carried out the following test.
kIa, environmental system
B3 Working conditions
Acceptance air pressure (gauge pressure)
Medical gas plate
Teaching camp chief
Lubricating oil type hand
Testing instrument (the suction method should be stated)
B5 Test results
B5. 1 Load air consumption
B5. 2 Test results report R1.
Frequency, H1
Average of each impact
Special when no load or failure/(·min-1)Test notes
Length of the protection rod
Diameter of the rigid rod
B6.3Punch tooth racket seat
Physical force applied to the machine under test
Test conditions of the drop test
Through the rod and the transformer
B6.7Other test notes
Orderer
Proposing unit
GA/T5621—1999
D·Inner diameter of the hose
L/,Calibration value
ww, date
, date
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