Crank-connecting-rod-mechanism-based alternating load loading device for bearing testing machine

A crank-connection-rod mechanism and bearing testing technology, which is applied in the direction of mechanical bearing testing, etc., can solve problems such as inability to realize variable loads and single loading characteristics

Inactive Publication Date: 2018-07-06
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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  • Crank-connecting-rod-mechanism-based alternating load loading device for bearing testing machine
  • Crank-connecting-rod-mechanism-based alternating load loading device for bearing testing machine

Examples

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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 a crank linkage mechanism, the bearing testing machine includes a rotating shaft 1, and 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-crank linkage-spring units arranged around the fixture 3, the described rotating motor-crank linkage-spring assembly includes sequentially connecting the rotating motor, crank linkage and spring, the rotating motor Drive the crank link mechanism to move, control the spring to be stretched or compressed, and apply alternating loads to the tested bearing 2 in the fixture 3 .

[0023] Wherein, there are two rotating motor-crank linkage-spring assemblies: assembly A and assembly B, which are arranged symmetrically on the upper and lower sides of the fixture 3 . The assembly A includes: a rotating motor A4, a crank linkage A5 and a spring A6, the motor A4...

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PUM

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Abstract

The invention relates to a crank-connecting-rod-mechanism-based alternating load loading device for a bearing testing machine. The bearing testing machine is composed of a rotating shaft (1); and a tested bearing (2) is installed at the rotating shaft (1). The crank-connecting-rod-mechanism-based alternating load loading device is characterized in that the loading device comprises a clamp (3) anda plurality of rotary motor-crank-connecting-rod-mechanism-spring assemblies arranged around the clamp (3). All rotary motor-crank-connecting-rod-mechanism-spring assemblies include rotary motors, crank-connecting-rod mechanisms, and springs, wherein the units are connected successively; the crank-connecting-rod mechanisms include flywheels (51), connecting rods (52) and connecting blocks (53); and the rotary motors drive the crank-connecting-rod mechanisms to move to control the springs to make stretching or compression deformation, thereby applying an alternating load on the tested bearing (2) in the clamp (3). Compared with the prior art, the crank-connecting-rod-mechanism-based alternating load loading device has the advantage of being capable of realizing the real working condition load of the internal combustion engine.

Description

technical field [0001] The invention relates to a loading device for a bearing testing machine, in particular to an alternating load loading device for a bearing testing machine based on a crank connecting rod mechanism. 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 criti...

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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