High-speed multi-station piston ring-cylinder liner sliding pair friction test machine

A friction testing machine, multi-station technology, applied in the direction of testing wear resistance, measuring devices, instruments, etc., can solve the problems of slow test process, unsuitable for high-speed occasions, unable to test friction and wear conditions, etc., to speed up the test process, Ingenious design, avoiding the effect of wire being pulled off

Pending Publication Date: 2020-05-01
山西交通职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a high-speed multi-station piston ring-cylinder in order to solve the problems that the traditional friction testing machine is slow in the test process

Method used

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  • High-speed multi-station piston ring-cylinder liner sliding pair friction test machine
  • High-speed multi-station piston ring-cylinder liner sliding pair friction test machine

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Embodiment Construction

[0016] A high-speed multi-station piston ring-cylinder liner sliding pair friction testing machine, including a first box-shaped frame 1, a second box-shaped frame 2, a third box-shaped frame 3, a crank connecting rod mechanism, and a frequency conversion motor 4 , N loading screws 5, N pressure sensors 6, N compression springs 7, N wireless passive strain gauge sensors 8a, N wireless passive inclination sensors 8b; N is a positive integer, and N≥2;

[0017] Wherein, the first box-shaped frame 1 is fixed on the ground; the lower end, the front end and the rear end of the first box-shaped frame 1 are all provided with openings; the upper side wall of the first box-shaped frame 1 is provided with N The first through hole, and N first through holes are arranged equidistantly from left to right; the second box-shaped frame 2 is fixed on the ground, and the second box-shaped frame 2 is located inside the first box-shaped frame 1 cavity; the front end and rear end of the second box-...

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Abstract

The invention relates to friction test machines, in particular to a high-speed multi-station piston ring-cylinder liner sliding pair friction test machine. The problems that the test process of a traditional friction test machine is slow, the mutual-affected frictional wear state among piston cavities cannot be tested, and the traditional friction test machine is not suitable for high-speed occasions are solved. The high-speed multi-station piston ring-cylinder liner sliding pair friction test machine includes a first box-shaped machine frame, a second box-shaped machine frame, a third box-shaped machine frame, a crank connecting rod mechanism, a variable frequency motor, N loading screws, N pressure sensors, N compression springs, N wireless passive strain sensors and N wireless passive inclination sensors, wherein N is a positive integer, and N is more than or equal to 2; an output shaft of the variable frequency motor is connected to the free end of a crank of the crank connecting rod mechanism; the N loading screws penetrate through N screw holes one to one; and the N pressure sensors are fixed to the lower ends of the N loading screws one to one. The high-speed multi-station piston ring-cylinder liner sliding pair friction test machine is suitable for a friction test of a piston ring-cylinder liner sliding pair.

Description

technical field [0001] The invention relates to a friction testing machine, in particular to a high-speed multi-station piston ring-cylinder liner sliding pair friction testing machine. Background technique [0002] The piston ring-cylinder liner sliding pair is an important part of the crank-link mechanism of an internal combustion engine. In order to improve the performance of the piston ring-cylinder liner sliding pair, a friction tester is usually used to conduct friction tests on the piston ring-cylinder liner sliding pair. The traditional friction testing machine is mainly divided into two types according to the structural form: 1. The first type of friction testing machine directly fixes the force sensor on the cylinder liner, so the measurement results of the force sensor cannot be decoupled. The friction test can only be carried out on a single piston ring-cylinder liner sliding pair, which not only leads to a slow test process, but also cannot test the friction an...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/02G01N3/06G08C17/02
CPCG01N3/56G01N3/02G01N3/06G08C17/02G01N2203/0676G01N2203/0682
Inventor 董晋明杨晋平
Owner 山西交通职业技术学院
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