Device for testing precision retentivity and fatigue life of RV speed reducer
A technology of fatigue life and accuracy retention, applied in measuring devices, testing of machine/structural components, testing of mechanical components, etc., can solve the problem of no RV reducer accuracy retention test platform, etc., to increase the load torque and load The effect of bending moment, increasing working speed and improving detection accuracy
Active Publication Date: 2021-03-16
BEIJING UNIV OF TECH
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Problems solved by technology
[0004] Accuracy retention is a key indicator for evaluating the quality of RV reducers, but there is currently no RV reducer accuracy retention test platform
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[0024] The working principle and detection method of the test device will be further described in detail below in conjunction with the composition and assembly schematic diagram of the test device.
[0025] The purpose of the invention of the testing device is to develop a device and method for simultaneously testing the positioning accuracy, bending stiffness and fatigue life of the RV reducer. Such as figure 1 with figure 2 As shown, the device includes a workbench (1), a mounting bracket base (2), a mounting bracket upper platen (3), a servo motor (4), a mounting plate (5), an RV reducer to be tested (6), and a temperature Sensor (7), extension arm (8), simulated swing arm (9), 2 counterweights namely the first counterweight (10) and the second counterweight (10'), the first displacement sensor (11 ), sensor bracket (12), sensor protection frame (13), detection rod (14) and the second displacement sensor (15).
[0026] The mounting bracket base (2) is fastened on the wo...
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The invention relates to a device for testing precision retentivity and fatigue life of an RV speed reducer. The device comprises a workbench, a mounting support base, a mounting support upper pressing plate, a servo motor, a mounting fixing disc, a to-be-detected RV speed reducer, a temperature sensor, an extension arm, a simulated swing arm, two balancing weights, namely, a first balancing weight and a second balancing weight, a first displacement sensor, a sensor support, a sensor protection frame, a detection rod and a second displacement sensor. The device applies variable load torque andload bending moment to the RV speed reducer at the same time by utilizing a balancing weight at the tail end of the simulated swing arm. The first displacement sensor is arranged below the balancingweight and used for detecting the positioning precision and the repeated positioning precision of the RV speed reducer. The second displacement sensor is arranged below the detection rod and used fordetecting the bending rigidity of the RV speed reducer. The precision retentivity, the fatigue life and the wear rule of the RV speed reducer are detected after the RV speed reducer runs for a specified time. The invention provides a test basis for theoretical research on the wear law and accelerated life of the RV speed reducer.
Description
technical field [0001] The invention relates to a device and method for detecting the positioning accuracy, bending stiffness and fatigue life of an RV reducer, which is characterized in that the accuracy retention and bending stiffness of the RV reducer are detected simultaneously, and belongs to the field of industrial robots. Background technique [0002] RV reducers are key functional components of industrial robot joints. Due to the large gap between domestic RV reducers and foreign products in terms of accuracy retention, rigidity and fatigue life, domestic RV reducers have long relied on foreign imports. The development of RV reducer accuracy retention and fatigue life test device is the basis for theoretical research on fatigue life. Therefore, the development of this test device is of great significance for improving the accuracy retention, rigidity and fatigue life of domestic RV reducer. [0003] During the operation of industrial robots, the RV reducer bears both...
Claims
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IPC IPC(8): G01M13/027G01M13/025
CPCG01M13/027G01M13/025
Inventor 纪姝婷张跃明贾迎帅李伟豪
Owner BEIJING UNIV OF TECH