Device and method for measuring dynamic rigidity of valve spring of valve mechanism
A technology of valve spring and dynamic stiffness, which is applied in the field of vehicle detection, can solve problems such as inconsistency of results, and achieve the effects of low experimental cost, improved experimental efficiency, and simple structure
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[0019] The present invention will be further explained below in conjunction with the drawings.
[0020] Such as figure 1 As shown, the valve spring dynamic stiffness measurement system of the valve train includes: control cabinet 1, motor 2, lubricating oil tank 4, encoder 5, acceleration sensor 6, laser displacement sensor 7, strain gauge 8, tachometer 9, charge amplifier 10, Dynamic strain gauge 11, data acquisition card 12, upper computer 13.
[0021] Control cabinet 1 is connected with motor 2 in signal, motor 2 drives the toothed belt wheel on the camshaft of valve mechanism 3 to rotate, and lubricating oil tank 4 is connected with valve mechanism 3 to provide lubricating oil for valve mechanism 3. The lubricating oil flows through the funnel Return to the lubricating oil tank 4; the encoder 5 is installed on the camshaft to collect the top dead center signal and the rotation angle signal; the acceleration sensor 6 is glued on the top surface of the valve, which can measure t...
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