Reciprocating high-temperature high-load friction wear test method and apparatus

A friction and wear test, reciprocating technology, applied in the direction of testing wear resistance, measuring devices, instruments, etc., can solve the problems of short lifespan of the lower sample fixture, low test temperature, large friction, etc., to achieve accurate load application, improve The effect of improving the carrying capacity and accuracy

Inactive Publication Date: 2006-06-21
DALIAN MARITIME UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current status of the reciprocating friction and wear testing machine is: (1) Most of the reciprocating mechanisms use sliding methods for positioning and guidance. The problem is that the friction force is large and the life of the friction pair is short; structure, but there is a point contact between the ball and the floor of the lower sample fixture, the fatigue problem under high load is difficult to solve, and the life of the lower sample fixture is very short
These all affect the life of the testing machine, the reliability of the work, the accuracy of the test results, and limit the range of the maximum load
(2) The operation of the upper sample fixture in the vertical direction is also positioned and gui

Method used

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  • Reciprocating high-temperature high-load friction wear test method and apparatus

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Experimental program
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Embodiment Construction

[0016] 1. Install the lower sample 10 of 10mm×8mm×100mm into the lower sample holder 8 .

[0017] 2. Install the upper sample 9 of 15mm×10mm×10mm into the upper sample holder 14 .

[0018] 3. Lift the lever 16, and load the fixture 14 installed on the upper sample from above until it contacts the lower sample.

[0019] 4. Put down the lever 16, select a weight 13 with a quality of 200N, and hang it on the force end of the lever 16.

[0020] 5. The ratio of the lever is 7:1, and the load applied between the upper and lower samples at this time is 1400N.

[0021] 6. Turn on the 220V power supply, the heater 11 starts heating, and at the same time turn on the power supply of the oil pump, the lubricating and cooling oil is injected through the holes 18 and 23, and flows out through the hole 20 for circulation. Set the heating temperature to 150°C, and the flow rate of the oil pump to 2 liters per minute.

[0022] 7. Turn on the power, the motor drives the eccentric shaft 2 to ...

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Abstract

The invention discloses a reciprocal high-temperature high-load friction and abrasion test method and equipment in the friction and abrasion testing technique domain, which is characterized by the following: the reciprocal moving structure, lower sample bottom support structure and upper sample vertical location structure adapt standard rolling bearing to realize the dynamic part measurement of friction coefficient, which improves the accuracy greatly; the load is constructed precisely to exclude the interference of sample moving structure friction force by static friction; the standard bearing improves the bearing ability, whose maximum load of nominal construction reaches 10000N to reduce the quality of moving structure and reciprocal inertia force and make the system operate stably at 800r/min; because of the orientation heating and thermal action of sample, the sample gains higher temperature and the bottom temperature remains low; the rolling shaft supports the bottom of sample bearing floor to keep enough space for cooling and lubricating through lubrication oil.

Description

technical field [0001] The invention belongs to the technical field of friction and wear testing. It relates to a new reciprocating high temperature and high load friction and wear test method and equipment. Background technique [0002] The current status of the reciprocating friction and wear testing machine is: (1) Most of the reciprocating mechanisms use sliding methods for positioning and guidance. The problem is that the friction force is large and the life of the friction pair is short; structure, but there is a point contact between the ball and the floor of the lower sample fixture, the fatigue problem under high load is difficult to solve, and the life of the lower sample fixture is very short. These have all influenced the life-span of testing machine, the reliability of work, the accuracy of test result, have limited the scope of maximum load. (2) The operation of the upper sample fixture in the vertical direction is also positioned and guided by sliding. Becau...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/02G01N19/04
Inventor 徐久军林炳凤严立
Owner DALIAN MARITIME UNIVERSITY
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