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Bearing test device capable of loading alternating load

A technology of alternating load and bearing test, applied in the direction of mechanical bearing test, etc., can solve the problems of inability to realize variable load loading, single loading characteristic, and difficult to carry out dynamic load bearing test of engine

Inactive Publication Date: 2018-06-15
SHANGHAI JIAN QIAO UNIV
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  • Summary
  • 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 dynamic load bearing is often under alternating loads, so it is difficult for the traditional bearing test device to carry out the test of the dynamic load bearing of the engine.

Method used

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  • Bearing test device capable of loading alternating load
  • Bearing test device capable of loading alternating load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A bearing test device that can be loaded with alternating loads, such as figure 1 As shown, the device includes a computer 1, a rotating motor 2, a coupling 3, a torque meter 4, a fixed fixture A 5, an oil supply system 6, an alternating load loading module 7, a movable fixture 8, a fixed fixture B9, and a rotating shaft 10 , the accompanying test sliding bearing B 11, the tested sliding bearing B 12, the tested sliding bearing A 13, the accompanying test sliding bearing A14, and the working platform 15. Among them, such as figure 2 As shown, the alternating load loading module 7 includes a temperature sensor 16, a linear motor A 17, a connecting device Aa 18, a spring A 19, a connecting device Ab 20, a connecting device Bb 21, a spring B 22, a connecting device Ba 23, and a linear motor B twenty four.

[0028] Wherein, the rotating motor 2 , the torque meter 4 , the fixing fixture A 5 and the fixing fixture B 9 are installed on the workbench 15 . The rotating motor...

Embodiment 2

[0032] A bearing test device capable of loading alternating loads, its structure is roughly the same as that of Embodiment 1, the difference is that a protective sleeve is also set on the output shaft of the linear motor in this embodiment.

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PUM

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Abstract

The invention relates to a bearing test device capable of loading alternating load. The bearing test device comprises a computer, a rotating motor, a rotating shaft, an alternating load loading moduleand assistant test components. The rotating motor is controlled by the computer. The output shaft of the rotating motor is connected with the rotating shaft through a coupler. The rotating shaft is sleeved by a tested sliding bearing. The left and right sides of the sliding bearing are provided with the assistant test components. The alternating load loading module is arranged on a flexible clampand composed of two sets of components which are vertically symmetrical. Each component comprises a linear motor, a spring and a connecting device. Compared with the bearing test devices in the priorart, the engine dynamically loaded bearing test can be developed.

Description

technical field [0001] The invention relates to a loadable test device, in particular to a bearing test device capable of loading 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 internal combustion engine. It not only affect...

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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