This standard specifies the test conditions, equipment, accuracy, procedures, data processing and determination of test results for the load-bearing capacity and transmission efficiency of cycloid pinwheel reducers. This standard applies to double-shaft type (including motor direct-connected type converted into double-shaft type) one-stage transmission reducers. Double-shaft type two-stage and three-stage transmission reducers should also be used as a reference. JB/T 5288.3-1991 Method for determining the load-bearing capacity and transmission efficiency of cycloid pinwheel reducers JB/T5288.3-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T5288.3-1991
Cycloidal Pinwheel Reducer
Carrying Capacity and Transmission Efficiency
Determination Method
Published on January 1, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 1, 1991
Mechanical Industry Standard of the People's Republic of China
Cycloidal Pinwheel Reducer
Carrying Capacity and Transmission Efficiency
Determination Method
JB/T5288.3-1991
This standard specifies the test conditions, devices, accuracy, procedures, data processing and determination of the carrying capacity and transmission efficiency of cycloidal pinwheel reducers (hereinafter referred to as reducers). This standard applies to double-shaft type (including motor direct-connected type converted into double-shaft type) primary transmission reducers. Double-shaft type secondary and tertiary transmission reducers should also be used as a reference.
Cited Standards
ZBY110
3 Terms
Torque and Speed ​​Measuring Instrument
Torque and Speed ​​Sensor
3.1 Transmission Efficiency
The transmission efficiency of the reducer, unless otherwise specified, usually refers to the ratio of the output power (or output torque) to the rated input power (or input torque multiplied by the transmission ratio) when the rated input power (or input torque) is reached at the rated input speed. 3.2 Temperature Rise Stability
Temperature Rise Stability means that when the reducer is running, the temperature of the lubricant changes by no more than 1°C within 30 minutes. 4 Test Conditions
4.1 The reducer test should be carried out on a dedicated test bench. 4.2 When testing the reducer, the indoor ambient temperature should be within the range of 5~40°C. The air around the reducer should circulate freely, and forced circulation is not allowed.
5 Test benches, equipment, instruments and their requirements 5.1 Test benches and equipment
a. Test platform or vertical reducer test bench; b. Prime mover (the output power and speed of the prime mover should be able to meet the input power and speed requirements of the reducer under test);
Loader (the loader should be able to meet the requirements for load and overload tests on the reducer under test); c
d. Speed ​​increaser (the setting of the speed increaser depends on the requirements of the loader); e. Coupling.
Approved by the Ministry of Machinery and Electronics Industry on January 1, 1991 and implemented on July 1, 1991
5.2 Instruments
JB/T5288.3-1991
a. Torque and speed sensor (matched with torque and speed measuring instrument, the accuracy level should not be lower than Class 1, and meet the provisions of ZBY111); b. Torque and speed measuring instrument (matched with torque and speed sensor, the accuracy level should not be lower than Class 1, and meet the provisions of ZBYI10); torque sensor (matched with torque measuring instrument, the measurement accuracy should not be lower than 1%); c.
d. Torque measuring instrument (matched with torque sensor, the measurement accuracy should not be lower than 1%); e. Speed ​​digital display (the measurement accuracy should not be lower than 1 word). Test device
6.1 The test device is composed of a test platform, a prime mover, a sensor, a reducer to be tested, a speed increaser, a loader and a coupling (see the schematic diagram of the test device).
a.lo2oo.oooaopooog.eo.aoo.D9aoa.apepbm Schematic diagram of the test device
1-Test platform; 2-Prime mover; 3 and 5-Sensor; 4-Reducer to be tested 6-Speed ​​increaser; 7-Loader; 8, 9, 10, 11 and 12-Coupling 6.2 The coaxiality of the test device after installation shall meet the accuracy requirements specified in the sensor instruction manual. 7 Test accuracy requirements
7.1 The accuracy of the torque test shall not be less than 1%. 7.2 The accuracy of the speed test shall not be less than 1%. 7.3 The accuracy of the input torque shall not be less than 5%. 8 Test procedures and methods
8.1 Preparation
8.1.1 All measuring instruments shall be within the validity period of the calibration and meet the accuracy requirements. 8.1.2 Before the test, the lubricant specified for the model shall be added to the reducer and speed increaser to be tested. 8.1.3 The reducer under test, the test equipment and the sensor shall be installed in accordance with the provisions of Chapter 6 of this standard. Before measuring, the instrument shall be self-calibrated. 8.2 Load test
8.2.1 The reducer under test shall be subjected to load test at the rated input speed in the direction of rotation specified for its operation. 8.2.2 Before the load test, the reducer under test shall be subjected to a 30-minute no-load test and shall comply with the provisions of the national standard "Cycloidal Pinwheel Reducer"
8.2.3 After the no-load test, a load test shall be carried out. During the load test, the load shall be gradually loaded in four stages of 25%, 50%, 75% and 100% of the rated input power at the input end of the reducer under test, and the operating time of each stage of the first three loading stages shall not exceed 2 hours. The operating time in the loading stage of 100% rated input power shall be based on the stability of the lubricant temperature rise, but shall not be less than 2 hours. In each loading stage, 10 sets of speed and torque data shall be measured from the input and output ends of the reducer under test at the same time. 2
8.3 Overload test
JB/T5288.31991
8.3.1 After the load test, the reducer shall be subjected to an overload test at 160% of the rated input power at its input end at the rated input speed, and the test time shall not be less than 2 minutes.
8.3.2 After the overload test, the reducer shall be able to operate normally. 9 Data processing
9.1 Processing of measured torque values
9.1.1 The arithmetic mean of the measured values ​​of input or output torque shall be calculated according to formula (1): T
Where: T
The arithmetic mean of the measured values ​​of input or output torque in the same loading stage, Nm;
T-The measured values ​​of input or output torque in the same loading stage, Nm; N-The number of measurements in the same loading stage.
9.1.2 The standard deviation (standard deviation) of the measured value of input or output torque is calculated according to formula (2): S
Wherein: S-the standard deviation (standard deviation) of the measured value of input or output torque in the same loading stage, Nm; VThe residual error (residual) of each measured value of input or output torque in the same loading stage, Nm.
9.1.3 The residual error of the measured value of input or output torque is calculated according to formula (3): V=T,- ..
The allowable error of the measured value of input or output torque is calculated according to formula (4): 9.1.4
Wherein: X-
The allowable error of the measured value of input or output torque in the same loading stage, N coefficient, can be found in Table 1.
9.1.5 Calculate the residual error Vi of each measured value of input and output torque in the same loading stage according to formula (3), and compare V, one by one with the allowable error X. If V exceeds the range of ±X, it is a negligent error and should be eliminated (the measured values ​​of input and output torque should be eliminated in pairs). 9.1.6 After eliminating the negligent error for the first time, recalculate and compare according to the procedures of Articles 9.1.1 to 9.1.5. If there is still a negligent error, it should be eliminated again. The negligent errors that are allowed to be eliminated shall not exceed 5 pairs. If more than 5 pairs are exceeded, the test shall be re-performed. 9.1.7 Calculate the arithmetic mean T of the measured values ​​of input torque and the arithmetic mean T of the measured values ​​of output torque in each loading stage after eliminating the negligent errors according to formula (1). It is the effective value for calculating the transmission efficiency. 9.2 Calculation of transmission efficiency
The transmission efficiency of each loading stage is calculated according to formula (5): 3
Wherein: "-
Transmission efficiency, %;
-Reducer transmission ratio;
JB/T5288.3—1991
x100%:
TThe arithmetic mean value of the effective input torque after eliminating the error in the same loading stage, Nm; Teu
-The arithmetic mean value of the effective output torque after eliminating the error in the same loading stage, Nm.
Determination of test results
Determination of the load-bearing capacity and transmission efficiency test results of the reducer is based on the reducer model and transmission ratio as evaluation parameters. 1 Determination of load-bearing capacity
The determination of the load-bearing capacity of the double-shaft primary transmission reducer is shown in Table 2. Table 2 Determination of the load capacity of double-shaft type primary transmission reducer Level
Transmission ratio
Input shaft speed
Machine model
Input shaft speed
Should comply with the national standard "Oscillatory pinwheel reducer"
1500r/min
Input power kW (load capacity)
Input power kW (load capacity)
1000r/min
Note: The input power corresponding to the input speed of 1500r/min is above the thick broken line; the input power corresponding to the input speed of 1000r/min is below the thick broken line. 10.2 Determination of transmission efficiency
The transmission efficiency of the reducer shall be assessed based on the ratio of the arithmetic mean value of the effective output torque measured during the load test of the reducer with 100% rated input power to the arithmetic mean value of the effective input torque multiplied by the transmission ratio. The determination of the transmission efficiency of the stage transmission reducer is shown in Table 3. Machine model
JB/T5288.31991
Transmission efficiency of stage transmission reducer
Transmission efficiency determination level
Should comply with
National standard
Oscillating pinwheel machine
The efficiency index above the oblique line is the efficiency value corresponding to the transmission ratio on the right side of the thick broken line; the efficiency index below the oblique line is the efficiency value corresponding to the transmission ratio on the left side of the thick broken line.
JB/T5288.3-1991
Appendix A
Conversion of input power and torque of reducer
(reference)
When the reducer is subjected to load and overload tests, the conversion formula of the input power and torque at its input end is as follows: p
T=9549二
Where: T input torque, N
—input power, kW;
Rated input speed, r/min.
Additional remarks:
This standard is proposed and managed by Tianjin Petrochemical General Machinery Research Institute. This standard is drafted by Tianjin Petrochemical General Machinery Research Institute. The main drafters of this standard are Yang Yinsheng and Duan Binggou. 6
People's Republic of China
Mechanical Industry Standard
Cycloidal Pinwheel ReducerWww.bzxZ.net
Load Capacity and Transmission Efficiency
Determination Method
JB/T 5288.31991
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2, Shouti South Road, Beijing
Postal Code: 100044)
Format: 880×12301/16
5 sheets 5/8
Word count: 12,000
First edition in October 1991First printing in October 1991Print run: 00.001-1000
Price: RMB 1.60
No.: 0108
Mechanical Industry Standards Service Network: http://www.JB.ac.cn166188
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