A vertical cylinder liner piston ring friction and wear test device
A friction and wear test, piston ring technology, applied in the direction of internal combustion engine testing, etc., can solve the problems of increased test cycle and cost, complicated test preparation, long cycle, etc., to prevent the influence of sensor measurement results, save the transmission mechanism, and save cycle time Effect
Active Publication Date: 2017-12-29
XUZHOU NORMAL UNIVERSITY
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Problems solved by technology
Its advantage is that it is similar to the actual working conditions, and the conditions are well controllable, but the test preparation is complicated, the cycle is long, and the cost is high
The installation uses the experimental method to try to install the cylinder liner and piston ring for actual work. The advantage is that it can be exactly the same as the actual working condition, but the test cycle and cost are greatly increased.
Method used
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[0034] Example: According to the type of work, the present invention can be divided into the following parts:
[0035] Power and transmission system: using linear motor simulation to achieve continuous adjustment of engine speed within a certain range. As a result, the reciprocating linear movement of the piston piston ring after the cylinder liner is loaded is realized.
[0036] Loading system: The loading of this device is achieved by the clamping action of the electric three-jaw chuck to realize the compression loading of the cylinder liner test piece to the piston piston ring assembly. The three-jaw chuck can make the loading force in the three directions the same and uniform, simulating the loading of actual working conditions.
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A vertical cylinder sleeve piston ring friction-wear test device comprises a motor (1) and an oil supply pipe (2), and further comprises a friction force test device (3), a raised holding jaw (5), a piston assembly (6), a positive pressure test device (7), a chuck base (8), an oil storage tank (9) and a heating device (10). A cylinder sleeve to be tested is cut into three test pieces (4) respectively mounted on the holding jaws (5) of a centered electrically powered three-jaw chuck, the raised holding jaws (5) clamping to apply a radial load. A load change between cylinder sleeve piston rings is simulated to test friction and lubricity performance thereof, so as to guide the pairing and selection of a cylinder sleeve piston ring friction pair model.
Description
Technical field [0001] The invention relates to an engine performance test device, in particular to a vertical cylinder sleeve piston ring friction and wear test device. Background technique [0002] Cylinder-piston-ring friction pair is the most critical friction pair in the engine. Its friction and lubrication performance directly affects the performance of the engine. Therefore, it is of great significance to conduct experimental research on the cylinder-piston-ring friction pair and lubrication characteristics. [0003] At present, the test methods for testing the friction and wear performance of cylinder liners and piston rings mainly include sample test method, component simulation test method, engine bench test method, and installed use test method. The sample test method is to cut the cylinder liner and piston ring into a standard sample shape and size and test it on a testing machine. This method has a simple structure. The test parameters are easy to control, repeatabili...
Claims
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IPC IPC(8): G01M15/05
CPCG01M15/05
Inventor 胡宁宁
Owner XUZHOU NORMAL UNIVERSITY