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A motor based on rotor position recognition

A technology of rotor position and rotating sleeve, applied in electrical components, electromechanical devices, mechanical equipment, etc., can solve the problem of difficult identification of rotor position, and achieve the effect of avoiding over-rotation, improving accuracy and protecting equipment.

Active Publication Date: 2019-01-18
ZHEJIANG DONGFANG ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Another object of the present invention is to provide a motor based on rotor position recognition, a slidable coupling is provided on the output shaft of the motor, and a trigger circuit for judging the rotor position is provided on the coupling. The improvement of the mechanical structure solves the technical problem that the rotor position is not easy to identify in the prior art

Method used

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  • A motor based on rotor position recognition
  • A motor based on rotor position recognition
  • A motor based on rotor position recognition

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Experimental program
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Effect test

Embodiment 1

[0037] Such as Figure 1-6 As shown, the present invention provides a motor based on rotor position recognition. The coupling 400 is axially slidably sleeved on the output shaft 100 of the motor. Specifically, the inner diameter of the coupling 400 is the same as that of the output shaft 100 of the motor. The outer diameters of the couplings 400 and 400 are axially provided with a number of second slots 402 on the outer circumference of the motor output shaft 100. The bar is clamped in the second groove 402 so that the coupling 400 moves axially on the motor output shaft 100 , and the second groove 402 provides a guide for the axial movement of the coupling 400 .

[0038] An accommodating cavity 120 is provided in the end of the motor output shaft 100, and the bodies of the first telescopic mechanism 300 and the second telescopic mechanism 500 are fixedly installed in the accommodating cavity 120, so that the first telescopic mechanism 300 and the second telescoping mechanism...

Embodiment 2

[0066] Such as Figure 7-9 As shown, on the basis of Embodiment 1, this embodiment additionally adds an angular displacement sensor that detects the relative rotation angle of the rotating sleeve 410 and the coupling 400, and indirectly judges the position of the load, so that the load can be started directly without resetting. .

[0067] Specifically, at least a second concave cavity 413 is provided on the inner wall of the rotating sleeve 410, and a reading head 412 is fixedly installed in the second concave cavity 413, and the reading head 412 rotates synchronously with the rotating sleeve 410. 412 is connected with the control unit; the outer wall of the coupling 400 is provided with a fifth groove 404 corresponding to the second cavity 413 in the circumferential direction, and an angular displacement is fixedly installed in the fifth groove 404 The ball scale 403, the position of the angular displacement ball scale 403 is fixed with the coupling 400, and the reading head...

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Abstract

The invention discloses a motor based on rotor position identification. The coupling is axially and sliding sleeved on an output shaft of the motor. A first telescopic mechanism for driving the coupling to move axially is arranged in the output shaft of the motor. A rotating sleeve is arranged on the outer periphery of the coupling, a first contact is arranged on the first insulating elastic piece, a second contact is arranged on the second insulating elastic piece, the first contact is in selective contact with the second contact, and the first contact and the second contact are connected inseries in a triggering circuit; The stopper is fixedly arranged in the outer peripheral space of the motor output shaft; a second telescopic mechanism is arranged at that end of the output shaft of the motor; and a first end face gear is arranged on the telescopic end of the second telescopic mechanism; The output shaft of the motor is spaced apart from the load input shaft, the end of the load input shaft is provided with a second end face gear, and the first end face gear is selectively meshed and linked with the second end face gear; The invention solves the technical problem that the rotorposition is difficult to identify in the prior art through the improvement of the mechanical structure.

Description

technical field [0001] The invention relates to the technical field of motors, and more specifically, the invention relates to a motor based on rotor position identification. Background technique [0002] Motors are used in a wide range of applications, and most electric power systems require motors for driving. There are many types of motors, but the control methods for the motors are similar, that is, to control the start, acceleration, operation, deceleration and stop of the motor through the power frequency and voltage. control requirements and objectives. In the prior art, some motors do not have rotor angle feedback, especially stepper motors, which do not have feedback of rotation angle, which leads to the fact that the stepper motor is still running when the load it drags reaches the physical limit or target position , resulting in noise or load over-travel, until the stepper motor runs its set angle before starting commutation operation, resulting in damage to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/21H02K7/10H02K7/116H02K7/00F16D1/033
CPCF16D1/033H02K7/003H02K7/10H02K7/116H02K11/21
Inventor 郑秋吴金富
Owner ZHEJIANG DONGFANG ELECTROMECHANICAL
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