Device and method for measurement testing of load of valve rocker of engine valve mechanism

A technology of valve mechanism and valve rocker arm, which is applied in the direction of engine testing, measuring devices, machine/structural component testing, etc., and can solve problems such as unfavorable engine parts manufacturers, unintuitive rocker arm load, and complicated conditions. To achieve the effect that is conducive to the development of the industry, simple structure and simple operation

Active Publication Date: 2012-08-01
HANGZHOU DIANZI UNIV
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Problems solved by technology

However, the configuration of the engine test bench is complicated, which is not conducive to the realization of the engine parts manufacturers. Moreover,

Method used

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  • Device and method for measurement testing of load of valve rocker of engine valve mechanism
  • Device and method for measurement testing of load of valve rocker of engine valve mechanism
  • Device and method for measurement testing of load of valve rocker of engine valve mechanism

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Experimental program
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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the rocker arm load test system for engine valve mechanism includes: control cabinet 1, motor 2, encoder 3, pulley 4, valve mechanism under test 5, lubricating oil tank 6, strain gauge 7, dynamic strain gauge 8, data Acquisition card 9, upper computer 10.

[0026] The tested gas distribution mechanism 5 is connected with the motor 2 through the pulley 4, and the motor 2 drives the gas distribution mechanism 5 to rotate, simulating the engine working condition; the speed of the motor 2 is adjusted by the control cabinet 1, and the speed of the motor 2 is adjusted according to the requirements of the engine test; the encoder 3 Installed on the camshaft gear end of the tested gas distribution mechanism 5 to obtain the gas distribution speed and rotation angle signals; the lubricating oil tank 6 is connected to the inlet and outlet of the...

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Abstract

The invention discloses a device and a method for measurement testing of load of a valve rocker of an engine valve mechanism. The testing device comprises a control cabinet, a motor, a coder, a belt pulley, the measured valve mechanism, a lubricating oil tank, a strain foil, a dynamic strain meter, a data acquisition card and an upper computer. The method includes static calibration and dynamic measurement, wherein static calibration testing includes that the strain foil is adhered at the rocker valve end of the to-be-measured valve mechanism, the strain foil is connected with the dynamic strain meter, and one end of a lever is abutted against the rocker valve end while the other end of the lever is loaded with weights; and dynamic measurement testing includes that a camshaft of the measured valve mechanism is connected with the motor through the belt pulley, the strain foil is adhered on the rocker of the measured valve mechanism, the other end of the strain foil is connected with the dynamic strain meter, and the coder and the dynamic strain meter are connected with the data acquisition card which is connected with the upper computer. By the aid of the device and the method, only one simple testing device is needed, and rocker load measurement is completed by simulating an operating state of an engine so that testing requirements are achieved.

Description

technical field [0001] The invention belongs to the technical field of engine detection, and relates to a load measurement test device and method for a valve rocker arm of an engine valve mechanism. Background technique [0002] The valve rocker arm of the engine valve train is one of the important moving parts in the engine valve train. It is a key component that transmits the motion of the valve train and affects the performance of the valve train. It has a direct impact on the movement force of the valve. Especially with the development of engine technology, the requirements for the valve mechanism are becoming increasingly stringent. The movement and force of the valve rocker arm not only affects the strength and reliability of the rocker arm, but also the research on the force, movement and landing seat of the valve. very important. Therefore, it is necessary to carry out experimental analysis on the load condition of the valve rocker arm. [0003] At present, there i...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01M15/00
Inventor 刘忠民刘开闫晗丁佳
Owner HANGZHOU DIANZI UNIV
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