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Engine bearing bush abrasion test table

A wear test, engine technology, applied in the direction of testing wear resistance, etc., can solve the problem of bearing pad wear test and other problems

Active Publication Date: 2014-03-26
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is only a wear test bench for rolling bearings in the prior art, and the bearing pad is a sliding bearing, which is quite different from rolling bearings in the wear mechanism, so the wear test bench for rolling bearings in the prior art cannot be used for the wear test of the bearing pad

Method used

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  • Engine bearing bush abrasion test table
  • Engine bearing bush abrasion test table
  • Engine bearing bush abrasion test table

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Embodiment Construction

[0027] The core of the invention is to provide an engine bearing bush wear test bench, which can truly simulate the wear condition of the bearing bush.

[0028] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Please refer to figure 1 with figure 2 , figure 1 It is a schematic diagram of the cross-sectional structure of the bearing pad wear test bench provided by the present invention in a specific embodiment; figure 2 It is a schematic diagram of the connection relationship of each component in the bearing pad wear test bench provided by the present invention.

[0030] The invention provides a test bench for bearing wear of an engine, which includes a simulated shaft 1, which is used to simulate the rotation of the crankshaft of the engine, and its two ends are journals 11, ...

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PUM

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Abstract

The invention provides an engine bearing bush abrasion test table which can truly simulate the crank shaft bearing bush abrasion condition for providing effective references for a research on bearing bush abrasion mechanism. The abrasion test table comprises a simulation shaft and a hydraulic cylinder, wherein the simulation shaft is used for simulating rotation of an engine crankshaft, and has shaft necks, for being matched with to-be-tested bearing bearing-bushes, at two ends; the hydraulic cylinder exerts radial load on the simulation shaft through a connecting rod, so as to simulate the loading force of a cylinder on a crank shaft during an acting travel. According to the abrasion test table, the stressing condition of the crank shaft during working process of an engine is fully considered and the speed and loading force of the crank shaft that rubs against a slide bearing is strictly controlled, so that the force of the crank shaft acting on the bearing bush can be truly simulated, thereby improving the authenticity and accuracy of the test.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine bearing bush wear test bench. Background technique [0002] In the engine, the crankshaft journal-bearing bush is a relatively important matching pair, and its working condition is harsh. If it is used improperly, it will easily cause early wear and damage of the crankshaft journal and bearing bush. [0003] The forms of damage to the crankshaft journal and bearing bush include mild abrasion, wear fatigue, corrosion and lack of lubrication, etc. The main manifestations are abrasion, surface peeling and excessive wear, copper exposure and deep wear, bearing inner lining fatigue, burning Shedding etc. [0004] When the crankshaft journal and bearing bushes are worn out, it will lead to increased engine vibration, increased noise, increased fuel consumption, and increased engine failures, leading to accidents. Therefore, it is necessary to study the wear mechanism of cra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 李建锋杨建法黄凯董桥桥任家良
Owner WEICHAI POWER CO LTD