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Performance test signal collection device of marine diesel engine valve actuating mechanism

A marine diesel engine and valve train technology, which is applied in the direction of internal combustion engine testing, etc., can solve the problems of no test device for valve train kinematics and dynamic performance testing, and few valve train kinematics and dynamic performance tests, etc., to achieve Ease of test data analysis, high efficiency, and strong portability

Active Publication Date: 2012-09-19
CHINA SHIPBUILDING INDUSTRY CORPORATION
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Problems solved by technology

[0002] The performance research of the valve mechanism is an important part of the performance research of the marine diesel engine. At present, people usually use the pure simulation test bench test or the engine reverse drag test for the valve mechanism test. The performance of the valve mechanism on the actual engine There are few kinematics and dynamics performance tests, and there is no test device for valve train kinematics and dynamics performance tests that can be directly applied to actual engines

Method used

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  • Performance test signal collection device of marine diesel engine valve actuating mechanism
  • Performance test signal collection device of marine diesel engine valve actuating mechanism
  • Performance test signal collection device of marine diesel engine valve actuating mechanism

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Embodiment Construction

[0017] see figure 1 As shown, according to the test principle, the signal acquisition device for the kinematics and dynamic performance test of the valve train is integrated. The test device includes: a plurality of test sensors (including acceleration, displacement, strain, crank angle and top dead center signal), a dynamic signal acquisition system (including an integrated signal amplification conditioning unit, a signal acquisition unit), and the plurality of test sensors It is connected with the gas distribution mechanism to be tested, and transmits the tested signal to the dynamic signal acquisition system.

[0018] Among the multiple test sensors, the piezoelectric acceleration sensor is used to measure the valve acceleration, the eddy current displacement sensor is used to measure the dynamic valve clearance, the laser displacement sensor is used to measure the valve displacement, and the strain gauge (flower) is used to measure the push rod, rocker, etc. The force of ...

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Abstract

The invention discloses a kinetics and dynamics performance test signal collection device of a marine diesel engine valve actuating mechanism. The device comprises multiple test sensors, a dynamic signal collection system and a computer, wherein the multiple test sensors are connected with a valve actuating mechanism to be tested and are used for collecting the accelerated speed, the displacement, the strain, a crank angle and a top dead center signal of the marine diesel engine valve actuating mechanism; the dynamic signal collection system is connected with the multiple test sensors and is used for amplifying and filtering collected signals; and the computer is connected with the dynamic signal collection system and is used for analyzing and processing the collected signals and displaying and recording a curve of the collected signals changed along with the crank angle. The performance test signal collection device of the marine diesel engine valve actuating mechanism, disclosed by the invention, can carry out synchronous test for multiple parameters such as the kinetics and the dynamics of the diesel engine valve actuating mechanism.

Description

technical field [0001] The invention relates to the field of testing kinematics and dynamic performance of a valve mechanism of a marine diesel engine, in particular to a signal acquisition device for testing the kinematics and dynamic performance of a valve mechanism of a marine diesel engine. Background technique [0002] The performance research of the valve mechanism is an important part of the performance research of the marine diesel engine. At present, the test of the valve mechanism is generally carried out by pure simulation test bench test or engine reverse drag test. The performance of the valve mechanism on the actual engine There are few kinematics and dynamics performance tests, and there is no test device for valve train kinematics and dynamics performance tests that can be directly applied to actual engines. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a marine diesel engine valve mechanism kin...

Claims

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Application Information

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IPC IPC(8): G01M15/05
Inventor 王宇业成晓北梁刚杜一叶斌黄立胡云贺林
Owner CHINA SHIPBUILDING INDUSTRY CORPORATION
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