Angular displacement sensor stator yoke structure

Abstract

The utility model discloses a stator yoke structure of an angular displacement sensor, and belongs to the RVDT technical field; the stator yoke is of a hollow cylinder structure, a through hole is formed in the center of the stator yoke, and the rotor penetrates through the through hole. The inner wall is of a multi-step structure, the iron core is assembled in the multi-step structure, a step shaft is arranged on the circumference of the outer side of the stator yoke and matched with the inner wall of the shell, and a wire outlet is formed in the left side of the end face of the stator yoke. By reducing the contact area of the stator yoke and the shell, increasing the wire outlet hole, increasing the straight slot and the like, the stator yoke can rotate in the sensor shell, the effect of making a zero position by rotating the stator yoke is achieved, the sensor does not need to be detached from a test bed, the angle of the stator yoke can be rotated according to real-time data of the test bed, the production efficiency is effectively improved, and the production cost is reduced. The method is more suitable for aviation equipment products.

Description

TECHNICAL FIELD

[0001] The utility model discloses a kind of angular displacement sensor stator yoke structures, belong to RVDT practical new technology. BACKGROUND

[0002] At present, angular displacement sensor adopts rotating rotor iron core method to find zero position when zero position is adjusted, this method needs to be tested on test bench and disassembled sensor, cannot monitor data in real time and rotate rotor iron core according to data, cause test efficiency to be low, simultaneously, disassembling multiple times can cause sensor damage. SUMMARY

[0003] The purpose of the present application is:

[0004] Change the method of rotating rotor iron core to find zero position, change to the method of rotating stator yoke to find zero position, without disassembling sensor, can monitor data in real time to find zero position, improve efficiency, and reduce the number of sensor disassembly, reduce the incidence of damage.

[0005] The technical scheme of the present application is:

[0006] Reduce the overall cylindrical middle outer circle diameter of original stator yoke, reduce the contact area of stator yoke outer circle and shell inner wall, more easily realize rotation process; Increase wire outlet hole space, will not damage lead-out wire in the process of rotating stator yoke; Design two linear grooves on the end face of stator yoke, after stator yoke is installed into shell, tool can be used to rotate stator yoke through linear groove.

[0007] The beneficial effects of the present application are:

[0008] The utility model discloses through reducing the contact area of stator yoke and shell, increasing wire outlet hole, increasing linear groove and other ways, make it can rotate in sensor shell, reach the effect of rotating stator yoke to find zero position, need not to be tested on test bench, can rotate stator yoke angle according to test bench real-time data, effectively improve production efficiency, more suitable for aviation equipment product. The utility model discloses the method of rotating stator yoke to find zero position, can make sensor real-time monitoring data to find zero position on test bench, and need not disassemble sensor, can effectively improve product production efficiency, reduce sensor damage rate. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the stator yoke sectional view (can be clear wire outlet hole, outer side circumference step shaft, hole card slot, inner wall multi-step structure position).

[0010] Figure 2 It is the left end face view of stator yoke (can be clear wire outlet hole, linear groove position). DETAILED DESCRIPTION

[0011] The present application will be further described below in conjunction with the drawings:

[0012] A kind of angular displacement sensor stator yoke structure, the stator yoke is hollow cylindrical structure, center is provided with through-hole, rotor passes through through-hole;Inner wall is multi-step structure, play the role of positioning when assembling iron core, stator yoke outside circumference is equipped with step shaft, reduce the contact area of stator yoke outside circumference and the inner wall of shell, easy to rotate in the shell of stator yoke.The left side of stator yoke end face is equipped with wire hole, outgoing line is led out from wire hole and used.Stator yoke is equipped with hole card slot, " a " slot, chamfer etc. near left end face.

[0013] Stator yoke is equipped with hole card slot near left end face, subsequent assembly hole card is used.

[0014] The left side of stator yoke end face is equipped with wire hole, outgoing line is led out from wire hole and used after coil assembly and stator yoke are assembled.Wire hole is opened rectangular slot by end face, slot width is 6, length is 12, sharp edge is guided blunt, easy to lead out outgoing line and avoid to hinder, damage outgoing line.

[0015] Stator yoke left end face is equipped with chamfer, easy to assemble into shell.

[0016] Stator yoke left end face is equipped with " a " slot, subsequent stator yoke and shell are assembled, using tool is pressed against " a " slot and rotates stator yoke, so that stator yoke rotates in the shell, to debug sensor zero position." A " slot size is 1.5 wide, 1 deep, facilitate tool operation and do not damage other structures of stator yoke.

[0017] Stator yoke right end face is equipped with step hole, single side size is 0.5, easy to assemble pressing plate later.

Claims

1. A stator yoke structure for an angular displacement sensor, characterized in that, The stator yoke is a hollow cylindrical structure with a through hole in the center, through which the rotor passes; the inner wall is a multi-step structure, and the iron core is assembled within the multi-step structure. A stepped shaft is provided on the outer circumference of the stator yoke for mating with the inner wall of the housing. An outlet hole is provided on the left side of the end face of the stator yoke.

2. The stator yoke structure of the angular displacement sensor according to claim 1, characterized in that, A hole and slot are provided near the left end face of the stator yoke for assembling a hole card.

3. The stator yoke structure of the angular displacement sensor according to claim 1, characterized in that, The outlet hole is a rectangular slot opened on the end face, with a slot width of 6 mm and a length of 12 mm.

4. The stator yoke structure of the angular displacement sensor according to claim 1, characterized in that, A chamfer is provided on the left end face of the stator yoke.

5. The stator yoke structure of the angular displacement sensor according to claim 1, characterized in that, A "one" character slot is provided on the left end face of the stator yoke.

6. The stator yoke structure of the angular displacement sensor according to claim 1, characterized in that, A stepped hole is provided on the right end face of the stator yoke for later assembling a pressure plate.

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