Adjustable sensor fastening device

Abstract

The invention discloses an adjustable sensor fastening device. The adjustable sensor fastening device comprises a base fixed to a protective sleeve, a hollow fixing sleeve fixed to the base through a fastening screw I, and a sealing plate fixed to the fixing sleeve through a fastening screw II. A sealing liner I is arranged between the base and the fixing sleeve. A sealing liner II is arranged between the fixing sleeve and the sealing plate. A sensor is installed in a cavity of the fixing sleeve and is in threaded connection with the inner wall of the fixing sleeve. The wire end of the sensor is locked and fixed through a locking nut. The locking nut is in threaded connection with the inner wall of the fixing sleeve. Double-layer sealing adjusting operation of the adjustable sensor fastening device is convenient, the locking structure is simple, the requirement for operating space is low, mutual interference is avoided, high sealing performance can be guaranteed, the requirement of a high vacuum environment for normal running of a high-speed rotating motor device is met, the position in the fixing sleeve can be adjusted through a thread, the locking nut is used for locking, the position is adjustable, operation is convenient, and a sensor wire is not damaged.

Description

Technical field [0001] The invention belongs to a sensor fastening device, in particular to an adjustable sensor fastening device. Background technique [0002] Some high-speed rotating electromechanical equipment uses a motor to drive the rotor to perform ultra-high-speed rotation in the protective sleeve, and this equipment has a high requirement for high vacuum. Since the rotor performs high-speed rotation during normal operation of the high-speed rotating electromechanical equipment, the amplitude fluctuation of the rotor directly affects the service life of the entire equipment. Therefore, a strict electrical test process is required in the development stage and the detection requirements for the rotor amplitude during operation are required. Very high. However, for a distance measuring sensor with a small structure, a corresponding fixed sleeve must be designed. This requires that the sensor can not only be locked firmly, but also have a certain adjustment range. After ins...

AI Technical Summary

Problems solved by technology

Its defect is that the thickness of the two layers of rubber pads must be appropriate in the actual operation process, otherwise there may be problems such as the compression rubber pad is too thick and the sealing performance cannot be guaranteed, or the compression rubber pad is too thin and the sensor is not compressed.

In addition, the sealing between the fixed sleeve and the protective sleeve wall and the sealing between the sealing plate and the fixed sleeve require a large and inconvenient operating space.

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