Friction wear test method and apparatus for cylinder liner piston ring component

A friction and wear test, piston ring technology, applied in the testing of mechanical components, testing of machine/structural components, testing of wear resistance, etc., can solve the problems of long test period, high cost, increased test period and test cost, etc. Achieve the effect of easy expansion, easy operation and low cost

Inactive Publication Date: 2006-06-21
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

The advantage is that the simulation is the same as the actual situation, and the conditions are well controllable, but the test period is long and the cost is high
The driving test is to install the cylinder...

Method used

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  • Friction wear test method and apparatus for cylinder liner piston ring component

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Embodiment Construction

[0027] The outer diameter of the nut 2 is 40mm, the inner hole is an M16mm thread, and the thread of the nut 1 is matched with the thread on the top of the elastic screw 1;

[0028] The outer diameter of the connection between the lower part of the nut 2 and the disc spring 3 with an outer diameter of 56mm, an inner diameter of 28.5mm, a wall thickness of 3mm, a height of 4.3mm, a maximum displacement of 1.3mm, and a maximum load of 11400N is 28.5mm. The height of the boss is 5mm;

[0029] The outer diameter of the intermediate flange of the positioning sleeve 4 is 35mm, the thickness is 5mm, the diameter of the middle hole is 16mm, the outer diameters of the upper and lower connecting parts are 28.5mm and 24mm respectively, and the height of the bosses of the upper and lower connecting parts is 5mm.

[0030] The outer diameter of a pair of equivalent disc levers 6 is 97mm, the inner diameter is 24mm, the thickness t=3mm, and the bottom angle θ=30°; the disc levers 6 are slit ...

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Abstract

The invention discloses a friction and abrasion testing method and equipment of cylinder piston ring element in the friction and abrasion testing technique domain, which is characterized by the following: adapting mechanic radial loading construction method and equipment to test the cylinder and piston ring element; adding liquid through heating the cylinder cavity to keep thermal; fixing the friction force sensor on the test machine rack directly; eliminating the measuring result influence of friction force by inertia force of moving component to gain more precise friction force; segregating the friction force sensor and cylinder through thermal-insulation material; setting the cooler to prevent the rack temperature from elevating and the temperature of friction force sensor from exceeding the highest working temperature. The invention is used as the rapid assessment method in the lab developing procedure of cylinder piston ring.

Description

technical field [0001] The invention belongs to the technical field of friction and wear testing. It is a method and equipment for applying mechanical radial load application method and equipment for friction and wear test of cylinder liner and piston ring parts. Background technique [0002] At present, the main methods for evaluating the friction and wear of cylinder liner and piston ring are sample test method, bench test method and driving test method. Among them, the sample test method is to cut the cylinder liner and piston ring into the shape and size of the sample required by the standard testing machine for testing. Its advantages are fast, easy to control test parameters, relatively good repeatability and stability. The disadvantage is that it is too different from the actual use conditions and the simulation is poor. The bench test is to assemble the cylinder liner and piston ring into the machine, and use the simulated load to conduct the ignition test. Its ad...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01M13/00
Inventor 徐久军林炳凤严立
Owner DALIAN MARITIME UNIVERSITY
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