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Gea-rack transmission-based alternating load loading device for bearing testing machine

A technology for gear rack and bearing testing, applied in the direction of mechanical bearing testing, etc., can solve the problems of single loading characteristics and inability to achieve variable loads.

Inactive Publication Date: 2018-09-28
SHANGHAI JIAN QIAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the loading characteristics of the traditional bearing test device are single, and the loading of variable loads cannot be realized. In the real internal combustion engine, the dynamic load bearing is often under alternating load, so it is difficult for the traditional bearing test loading device to realize the alternating load of the dynamic load bearing of the engine. load

Method used

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  • Gea-rack transmission-based alternating load loading device for bearing testing machine
  • Gea-rack transmission-based alternating load loading device for bearing testing machine

Examples

Experimental program
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Effect test

Embodiment 1

[0022] like figure 1 As shown, an alternating load loading device for a bearing testing machine based on rack and pinion transmission, the bearing testing machine includes a rotating shaft 1, the tested bearing 2 is installed on the rotating shaft 1, and the loading device includes a fixture 3, and a plurality of rotating motors-rack and pinion transmission mechanisms-spring assemblies arranged around the fixture 3, the described rotation motors-rack and pinion transmission mechanisms-spring assemblies include sequentially connecting the rotation motors, rack and pinion transmission mechanisms and springs , the rotating motor drives the rack and pinion transmission mechanism to move, the control spring is stretched or compressed, and the alternating load is applied to the tested bearing 2 in the fixture 3 .

[0023] Wherein, there are two rotating motor-rack and pinion transmission mechanisms-spring assemblies: assembly A and assembly B, which are symmetrically arranged on the...

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Abstract

The present invention relates to a gear-rack transmission-based alternating load loading device for a bearing testing machine. The bearing testing machine comprises a rotation shaft (1). A tested bearing (2) is mounted on the rotation shaft (1). The loading device comprises a clamp (3), and a plurality of rotary motor-gear-rack transmission mechanism-spring assemblies disposed around the clamp (3); and the rotary motor-gear-rack transmission mechanism-spring assembly includes a rotary motor, a gear-rack transmission mechanism and a spring which are connected with one another sequentially, wherein the rotary motor drives the gear-rack transmission mechanism to move so as to control the spring to be tensioned or compressed and deformed, so that an alternating load can be applied to the tested bearing (2) in the clamp (3). Compared with the prior art, the loading device of the invention has the advantage of capacity of realizing the real working condition load of an internal combustion engine and other advantages.

Description

technical field [0001] The invention relates to a load device for a bearing testing machine, in particular to an alternating load loading device for a bearing testing machine based on rack and pinion transmission. 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 fri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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