Rack-and-pinion-transmission-based bearing test device capable of applying radial alternating load

A rack and pinion, alternating load technology, applied in the direction of mechanical bearing testing, etc., can solve the problems of inability to realize variable load loading, difficulty in carrying out dynamic load bearing tests of engines, and single loading characteristics

Inactive Publication Date: 2018-07-06
SHANGHAI JIAN QIAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the traditional bearing test device has a single loading characteristic and cannot realize variable load loading. In real internal combustion engines, the dynam

Method used

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  • Rack-and-pinion-transmission-based bearing test device capable of applying radial alternating load
  • Rack-and-pinion-transmission-based bearing test device capable of applying radial alternating load
  • Rack-and-pinion-transmission-based bearing test device capable of applying radial alternating load

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Embodiment

[0031] A bearing test device that can apply radial alternating loads based on a rack and pinion transmission mechanism, its structure is as follows: figure 1 As shown, the device includes a computer 1, a drive motor 2, a coupling 3, a torque meter 4, a fixed fixture A 5, an oil supply system 6, a radial alternating load loading module 7, a movable fixture 8, a fixed fixture B 9, The rotating shaft 10, the test bearing B 11, the tested bearing B 12, the tested bearing A 13, the test bearing A 14, and the working platform 15. Among them, such as figure 2 As shown, the radial alternating load loading module 7 includes a temperature sensor 16, a rotary motor A 17, a rack and pinion transmission mechanism A 18, a spring A 19, a connection device A 20, a rotary motor B21, a rack and pinion transmission mechanism B 22, Spring B 23, coupling B 24, coupling C 25, spring C 26, rack and pinion C 27, rotary motor C 28, coupling D 29, spring D 30, rack and pinion D 31, rotary motor D32....

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Abstract

The invention relates to a rack-and-pinion-transmission-based bearing test device capable of applying a radial alternating load. The bearing test device is composed of a computer and a drive motor connected to a computer; and an output shaft of the drive motor is connected with a rotary shaft through a coupling. A detected bearing sleeves the outside of the rotary shaft. A radial alternating loadloading module arranged at the detected bearing consists of a temperature sensor arranged at the detected bearing and loading parts being arranged at the outer side of the detected bearing and being symmetric in four directions; and the loading parts include rotary motors, rack-and-pinion transmission mechanisms connected with the rotary motors, springs connected with the rack-and-pinion transmission mechanisms, and connecting mechanisms connected to the other ends of the springs. Compared with the prior art, the rack-and-pinion-transmission-based bearing test device has the following beneficial effect: alternating load loading of the bearing in four directions and two radial directions is realized.

Description

technical field [0001] The invention relates to a bearing testing device, in particular to a bearing testing device based on rack and pinion transmission that can apply radial alternating loads. Background technique [0002] Internal combustion engines are widely used in automobiles, ships, airplanes, tanks, railway locomotives, agricultural machinery, construction machinery, generator sets and other industries. As power equipment, they occupy a very important position in the national economy. The internal combustion engine includes several important friction pairs such as piston-cylinder liner, piston ring-cylinder liner, crankshaft-bearing and cam-tappet. Among them, the crankshaft bearing, including the main bearing and the connecting rod bearing (due to the working load of this type of bearing The size and direction of the internal combustion engine change with time, so it is usually called a dynamic load bearing), which is one of the most critical friction pairs of the ...

Claims

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Application Information

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IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 张迪刘立华陈志澜
Owner SHANGHAI JIAN QIAO UNIV
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