Detecting platform capable of simulating vibrating fault of harmonic reducer
A harmonic reducer and fault detection technology, which is applied in the fields of analog harmonic reducer vibration fault detection platform, harmonic reducer performance test device based on sensor technology, harmonic reducer overall performance test and vibration fault diagnosis, Achieve the effect of strong feedback, high transmission precision and compact structure
Active Publication Date: 2016-08-31
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
However, there are no reports at home and abroad on the development of a vibration fault test platform for harmonic reducers. The present invention aims at studying different reduction ratios and different stress load conditions, and obtains the key components of harmonic reducers through online sensor data collection. Vibration signal to achieve the purpose of harmonic reducer performance test and fault diagnosis
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Embodiment 1
[0025] The harmonic reducer simulation body includes a harmonic reducer steel wheel cover 27, a flexible thin-walled bearing 28, a harmonic reducer input shaft 40, a harmonic reducer toothless rigid wheel 41 and a harmonic reducer toothless flexible Wheel 42, the flexible thin-walled bearing 28 is installed on the elliptical journal of the input shaft 40 of the harmonic reducer. The outer side of the flexible thin-walled bearing 28 is located on the inner side of the toothless rigid wheel 41 of the harmonic reducer;
[0026] Described damping device comprises test bench base plate 22 and damping spring 23, and described damping spring 23 is arranged between test platform base plate 24 and test bench base plate 22, is used to support test platform base plate 24;
[0027] The positioning device includes a test platform base plate 24, a test support base plate 25, a motor base base plate 52, a sliding table backing plate 48, a set screw 47, an input end motor base 38, an output e...
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The invention discloses a detecting platform capable of simulating the vibrating fault of a harmonic reducer. The detecting platform comprises a power transmission device, a harmonic reducer simulator, a power loading device, a damping device, a positioning device and a sensor group. According to the invention, three types of sensors are adopted for collecting signals, and are respectively two electric eddy sensors, four acceleration sensors and a pressure sensor; the two electric eddy sensors are fixed obliquely above two sides of an input shaft of the harmonic reducer simulator by forming an angle of 90 degrees so as to perform detection on the trail of the axis of the input shaft; and the four acceleration sensors are arranged at foot stalls of a testing support seat and reflect the working characteristics of the harmonic reducer by collecting the vibrating acceleration of the foot stalls. The platform realizes simulation on the harmonic reducer in working conditions of different loads and different reduction ratio, can detect the vibrating signal in various different working conditions, and can obtain the overall working performance of the harmonic reducer by carrying out processing and analysis on the signal. The platform is compact in structure, safe and reliable in detection process, and strong in detection result feedback.
Description
technical field [0001] The invention relates to a vibration fault detection platform for a simulated harmonic reducer, especially suitable for performance testing and vibration fault diagnosis of a harmonic reducer, in particular a performance testing device for a harmonic reducer based on sensor technology, which belongs to mechanical detection field. technical background [0002] As a power transmission component with large transmission ratio, large load capacity and high transmission precision, harmonic reducer is widely used in many fields such as aviation, aerospace, navigation, shipbuilding, bionic machinery, machine tools, medical machinery, agricultural machinery, petrochemical machinery, etc. It has been widely used, but at present our country is still relatively weak in the technical research field of harmonic reducer. my country's industrial take-off development plays a vital role. [0003] Among the various working performance indicators of the harmonic reducer, ...
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IPC IPC(8): G01M13/02G01M7/02
CPCG01M7/025G01M13/027G01M13/028
Inventor 李振李伟光王娇娇林武文庄义钦刘志洋王凯郑相立郭明军林鑫
Owner SOUTH CHINA UNIV OF TECH