This standard specifies the content, requirements and methods of type test for general gear transmissions. This standard applies to various general power closed gear transmissions with separate housings and a speed of less than 3000r/min. The test of high-power gear devices is allowed to be replaced by industrial application tests. The user's manufacturer is allowed to agree on the test items. JB/T 5077-1991 Type test method for general gear devices JB/T5077-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T5077—91
General Gear Device
Published on June 11, 1991
Type Test Method
Implementation on July 1, 1992
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Mechanical Industry Standard of the People's Republic of China
General Gear Device
1 Subject Content and Scope of Application
Type Test Method
This standard specifies the content, requirements and methods of type test for general gear transmission devices. JB/T507791
This standard is applicable to various general power closed gear transmission devices with separate housings and a speed of less than 3000r/min. The test of high-power gear devices is allowed to be replaced by industrial application test. Allow the user and the manufacturer to agree on the test items. 2 Reference standards
GB 6404
GB8543
GB11368
Gear device and noise sound power level determination method Determination of mechanical vibration of gear device in acceptance test Cleanliness of gear transmission device
3 Type I test object
If it meets one of the following conditions, a type test should be carried out. 3.1
When new products are trial-produced and old products are transferred to the factory for production. 3.2 When the design, process and material of the product are changed and have a great impact on the product performance. When resuming production after two years of suspension.
The basic performance of the gear device produced in batches should be tested periodically, and no more than 2 units should be randomly sampled each time. 4 Type test items
Basic performance test of gear device
Clearance test;
Loading test:
Transmission efficiency test:
Rated lift test:
Noise test:
Vibration test.
Durability test of gear device
Fatigue life test;
Overload test.
5 Test equipment and instruments
5.1 Test bench
5.1.1 The test bench shall be used only after being appraised by the relevant departments. Approved by the Ministry of Machinery and Electronics Industry on 1991-06-11 and implemented on 1992-07-01
JB/T5077-91
5.1.2 The test bench shall ensure safe operation and have sufficient rigidity. The two rotating couplings shall meet the coaxiality requirements. 5.1.3 The loading device of the test bench shall be able to apply load reliably. 5.1.4 The installation of the tested gear device on the test bench should be in accordance with its working conditions and fastening methods. 5.2 Testing instruments and accuracy
Testing instruments, meters, measuring tools and inspection tools should be calibrated and calibrated in accordance with relevant national standards and regulations, and have a valid calibration certificate. The accuracy of the testing instrument shall comply with the requirements of Table 1. Table 1
Speed ​​and torque measuring instrument
Thermometer
Analytical balance
Noise measuring instrument
Vibration meter
Requirements for test gear loading
Torque measurement
Vibration measurement
(1/10000)g
±1 dB(A)
The error shall not exceed ±55%
6.1 The parts and components of the tested gear device shall be manufactured according to the drawings and technical documents approved by the prescribed procedures, and have inspection records. 6.2 The lubricating oil and oil level used in the gear device shall comply with the requirements of the design documents. 6.3 The basic parameters of the gear device under test shall be provided in Appendix A (reference) Table A1.7 Test method
7.1 Basic performance test of gear device
7.1.1 Cleanliness test
The cleanliness of the gear device shall be tested in accordance with the provisions of GB11368. 7.1.2 Loading test
7.1.2.1 The gear shall be installed at the rated speed and operated at 25%, 50%, 75% and 100% of its rated torque for 30 minutes each. 7.1.2.2 During the loading test, the time, oil temperature, speed and torque shall be recorded every 10 minutes. 7.1.2.3 For gear devices that work in both directions or do not indicate the direction of rotation, forward and reverse tests shall be carried out; for gear devices that work in one direction, one direction test may be carried out. The direction of rotation must be the same as the working direction. 7.1.2.4 For speed change gear devices and multi-stage output gear devices, tests shall be carried out in accordance with relevant industry standards. 7.1.2.5 When adding torque to each gear, the gear device should ensure normal operation without oil leakage or other abnormal phenomena. 7.1.3 Transmission efficiency test
7.1.3.1 Rated speed variable torque test
The input speed is the rated speed of the gear device: 10 minutes after the operation reaches thermal equilibrium, the speed and torque are measured: the output torque increases from 0 to 100% of the rated value by 10%, and the load test is performed gear by gear: the speed, torque and efficiency of each gear are recorded, and the torque-efficiency curve is drawn: Rated torque variable speed test
The input torque is the rated torque of the gear device: b.
JB/T507791
The input speed is divided into 5 gears, and the test is carried out at 40%, 50%, 60%, 80% and 100% of the rated speed; the speed, torque and efficiency of each gear are recorded, and the speed-efficiency curve is drawn. Temperature rise test
7. 1. 4. 1
The temperature rise test is to measure the temperature rise of the lubricating oil and the overflow of the bearing of the gear device. At the rated speed and rated torque, the test bench runs continuously, and the temperature rise is observed and recorded. 7. 1. 4. 2
7. 1. 4. 3
The test time is 30 minutes after the gear device starts to run and reaches thermal equilibrium. Noise test
7.1.5.1Measure the noise of the gear device at rated speed and no load. Measure the noise of the gear device at rated speed and rated overload. 7. 1. F. .
7.1.5.The noise test method is carried out in accordance with the provisions of GB6404. The noise test data shall be recorded in Table A2 of Appendix A. 7.1.5.4
7.1.6 Dynamic test
7.1.6.1 The vibration test of the gear device shall be carried out under the conditions of rated speed and rated torque. 7.1.6.2 The vibration test method shall be carried out in accordance with the provisions of GB8543. 7.1.6.3 The vibration test data shall be recorded in Table A3 of Appendix A. 7.2 Durability test of gear device
7.2.1 Fatigue life test
7.2.1.1 The gear device shall be tested under the conditions of rated torque and rated speed. 7.2.1.2 The test time shall not be less than 5×10\ stress cycles of the high-speed shaft gear, and it may also be replaced by an equivalent strengthening test. 7.2.1.3 It is allowed to replace the bench fatigue life test with an industrial application test. The industrial application test time is 1000h, and there shall be a record report.
7.2.1.4 During the test, the machine shall be stopped for inspection at 25%, 50% and 75% of the test time, and detailed records shall be kept. The test can be continued only when the gear teeth are in good condition or only have local pitting and no development trend. 7.2.1.5 During the test, it is not allowed to replace important parts, otherwise the test shall be repeated. 7.2.2 Overload test
7.2.2.1 At rated speed, the bench test shall be carried out at 110% and 120% of the rated torque respectively. 7.2.2.2 The overload operation test time shall comply with the provisions of Table 2. Table 2
Loading order
Percentage of rated torque
Additional stable operation test time
7.2.3 After the type test of the gear device is completed, its intact indicators are: 110%
The gear teeth and main parts have no breakage or cracks, and the gear teeth have no plastic deformation: b.
The gear tooth surface has no glue content,wwW.bzxz.Net
The tooth surface wear amount does not exceed the value specified in the technical documents: The tooth surface pitting area does not exceed the value specified in the technical documents, 8 Test report
8.1 After all the tests are completed, a detailed test report should be written based on the test results, and all technical documents should be filed and well preserved. 8.2 The test report should include the following contents (see Appendix A (reference) Table A4 for the report form). a.
Project source:
Test content:
Basic parameters of gear device:
Lubrication method, lubricating oil:
Simplified diagram of test bench, test instrument model: test measurement data, tables and related graphs; state of the gears under test after the test;
Explanation of relevant issues and analysis of test results; test conclusion,
Signatures of relevant personnel participating in the test.
JB/T5077—91
Basic gear clearance
Explanation
JB/T5077—91
Appendix A
Tabular format for type test of general gear device (reference)
Table AI Basic parameters of the gear device under test Transmission type
Screw power unit
Total transmission ratio
Center distance
Number of small gears
Rated input speed
Tentative output speed
Direction
Gear parameters
Surface hardness
Degree of sharpness
Commissioning unit||t t||Measurement location
Name, model and main parameters of the equipment under test
Instrument
Measurement panel noise plan
Detector
JB/T5077-91
Table A2 Noise measurement record
Measurement purpose
Commissioning unit
Measurement location
JB/T5077—91
Table A3 Vibration detection record
Measurement purpose
Name, model and main parameters of the equipment under test
Measurement instrument
Measurement vibration location map
Detector
Measurement point location
. (Acceleration)
「(Speed)
With(Displacement)
Project Source
Test Content
Factory No.
Based on Standard
Transmission Type
Basic Gear
Necessary Notes
Total Transmission Ratio
JB/T5077-91
Table A Type Test Report of Balance Wheel Device
Test No.
Gear Device
Center Distance
Rated Input Speed
Pinion Parameters
Tooth Surface Neck
Tentative Output Step Short
Gear Parameters
Working Direction
Tooth Surface Hardness
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