Vibration measurement assembly with accurate positioning device for height direction motion sensing piece

Abstract

The invention discloses a vibration measurement assembly with an accurate positioning device for a height direction motion sensing piece, which comprises a body, a circuit board, a positioning device and a pressing base body, wherein the body has a reference surface and an orthogonal setting surface orthogonal to the reference surface, the orthogonal setting surface is provided with a plurality of insertion ports which are far away from each other, and the distance between the insertion ports exactly corresponding to the overall dimension of the height direction motion sensing piece; the circuit board is used for electrically welding and fixing the height direction motion sensing piece; the positioning device comprises a plurality of fixing units which are complementary with the insertion ports in shape and are not smaller than the corresponding insertion ports in size, and the fixing units are used for being tightly combined to the corresponding insertion ports; and the pressing base body extends out of the fixing unit and is provided with a butt joint surface close to the body and a back surface opposite to the butt joint surface, and the butt joint surface is provided with a butt joint part which is used for enabling the circuit board and the height direction motion sensing piece to abut against and be fixedly held between the pressing base body and the body.

Description

technical field [0001] The invention relates to a vibration measurement component, in particular to a vibration measurement component with a precise positioning device for a motion sensing part in the height direction. Background technique [0002] Any equipment that rotates around a certain center can be called a rotating equipment, ranging from fans, motors, pumps, and compressors commonly found in factories to the shafts of wind turbines and the axles of high-speed subway trains. Because it is impossible for any rotating equipment to be a perfect true circle, there will be different degrees of eccentric rotation during operation, which will generate some reciprocating force and cause the rotating equipment to vibrate. Therefore, the vibration generated by the above actions can be monitored Behavior to judge the status of the above-mentioned rotating equipment. For rail vehicle applications, the minimum vibration of 1mG needs to be monitored regularly. There have been cas...

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Problems solved by technology

In particular, this structural design cannot cause a sharp increase in cost, and cannot affect the yield and efficiency of assembly

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