Damping compensation device for motor

Abstract

The damping compensation device comprises a motor main body, a sealing cover and a damping compensation assembly, the sealing cover is installed at one end of the motor main body, a step through hole for a motor shaft of the motor main body to penetrate through is formed in the middle of the sealing cover, and a bearing is arranged between the outer side of the motor shaft and the inner wall of the end, close to the motor main body, of the step through hole. The damping compensation assembly is located between the motor body and the sealing cover and arranged on the outer side of the motor shaft in a sleeving mode, the damping compensation assembly comprises an opposite-vertex wave spring and a limiting sleeve, the two ends of the opposite-vertex wave spring abut against the limiting sleeve and the motor body respectively, and one end of the limiting sleeve is inserted into the stepped through hole in a matched mode and abuts against an inner ring of the bearing. The device effectively reduces the vibration of the bearing in the operation process of the motor, and the abutting thin spring is not easy to misplace due to the compression of the limiting sleeve and the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a vibration reduction and compensation device for motors. Background Art

[0002] The motor rotor generally uses steps or additional gaskets to support the bearing to ensure the positioning limit of the rotor. The motor rotor may not fit properly inside the motor due to the stacking tolerance of the parts, which may cause noise after operation. The bearing may be subjected to axial vibration caused by the movement of the motor shaft during operation, which will cause wear on the bearing end face. Utility Model Content

[0003] The purpose of the utility model is to solve at least one problem of the prior art and to provide a vibration reduction compensation device for a motor.

[0004] To achieve the above-mentioned purpose, the utility model proposes a shock-absorbing compensation device for a motor, comprising a motor body, a cover, and a shock-absorbing compensation component. The cover is installed at one end of the motor body. A stepped through hole is provided in the middle of the cover for the motor shaft of the power supply machine body to pass through. A bearing is provided between the outer side of the motor shaft and the inner wall of the stepped through hole close to one end of the motor body. The shock-absorbing compensation component is located between the motor body and the cover and is sleeved on the outer side of the motor shaft. The shock-absorbing compensation component comprises a top-to-top wave spring and a limit sleeve. The two ends of the top-to-top wave spring respectively resist the limit sleeve and the motor body. One end of the limit sleeve is inserted into the stepped through hole and resists the inner ring of the bearing.

[0005] Preferably, one end of the limiting sleeve close to the motor body is provided with a stepped limiting portion, and one end of the top-to-top wave spring is sleeved outside the stepped limiting portion.

[0006] Preferably, a washer is provided between the top wave spring and the motor body.

[0007] Preferably, the cover and the motor body are fastened with a plurality of screws.

[0008] Preferably, two ends of the top wave spring respectively abut against the limit sleeve and the rotor of the motor body.

[0009] Preferably, the bearing is a rolling bearing.

[0010] Preferably, the sealing cover is provided with a hollow opening.

[0011] The beneficial effects of the utility model are as follows: the utility model arranges the top wave spring and the limit sleeve on the outside of the motor shaft, and the two are tightly arranged between the rotor and the cover. The limit sleeve presses against the inner ring of the bearing installed on the cover. The elastic deformation of the top wave spring can compensate for the installation error caused by the superimposed tolerance between the rotor, the limit sleeve and the bearing, and effectively reduces the vibration of the bearing during the operation of the motor. The compression of the limit sleeve and the bearing makes it difficult for the top thin spring to be misplaced.

[0012] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the embodiment of the utility model.

[0014] Figure 2 It is a left side cross-sectional view of an embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the disassembly of an embodiment of the utility model.

[0016] In the figure: 1-motor body, 2-cover, 3-top wave spring, 4-limit sleeve, 5-washer, 11-motor shaft, 21-bearing. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described in conjunction with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. The components of the embodiment of the present application described and shown in the drawings here can be arranged and designed in various different configurations. In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship usually placed when the application product is used, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0018] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0019] The utility model is described in detail below in conjunction with the accompanying drawings.

[0020] See also Figure 1 , Figure 2 , Figure 3 The present embodiment provides a vibration reduction compensation device for a motor, comprising a motor body 1, a cover 2, and a vibration reduction compensation component. The cover 2 is installed at one end of the motor body 1. A stepped through hole is provided in the middle of the cover 2, through which the motor shaft 11 of the motor body 1 passes. A bearing 21 is provided between the outer side of the motor shaft 11 and the inner wall of the stepped through hole close to one end of the motor body 1. The vibration reduction compensation component is located between the motor body 1 and the cover 2 and is sleeved on the outer side of the motor shaft 11. The vibration reduction compensation component comprises a top-to-top wave spring 3 and a limit sleeve 4. The two ends of the top-to-top wave spring 3 respectively abut the limit sleeve 4 and the motor body 1. One end of the limit sleeve 4 is inserted into the stepped through hole and abuts against the inner ring of the bearing 21.

[0021] In this embodiment, refer to Figure 3 A stepped limiting portion is provided at one end of the limiting sleeve 4 close to the motor body 1, and one end of the top wave spring 3 is sleeved on the outside of the stepped limiting portion. The setting of the stepped limiting portion can avoid the misalignment of the top wave spring 3 after installation, and has a certain limiting effect on it.

[0022] In this embodiment, refer to Figure 3 A washer 5 is provided between the top wave spring 3 and the motor body 1. The washer 5 plays a certain buffering role and reduces the wear between the top wave spring 3 and the rotor.

[0023] In this embodiment, the cover 2 and the motor body 1 are fastened with a plurality of screws, and the number of the screws includes but is not limited to 3 or 4.

[0024] In this embodiment, refer to Figure 3 The two ends of the top wave spring 3 respectively press against the limiting sleeve 4 and the rotor of the motor body 1.

[0025] In this embodiment, the bearing 21 is a rolling bearing.

[0026] In this embodiment, the cover 2 is provided with a hollow opening.

[0027] Working process of this utility model:

[0028] During operation, the damping and compensating device for the motor has the washer 5, the top wave spring 3 and the limiting sleeve 4 sleeved on the outside of the motor shaft 11 of the motor body 1, the two ends of the top wave spring 3 respectively abut against the stepped limiting portion of the limiting sleeve 4 and the washer 5, the washer 5 abuts against the rotor, the bearing 21 is installed in the stepped through hole of the cover 2, the motor shaft 11 passes through the bearing 21 and the stepped through hole and extends out of the cover 2, the cover 2 and the motor body 1 are connected by screws, the limiting sleeve 4 abuts against the inner ring of the bearing 21, during use, the stepped limiting portion of the limiting sleeve 4 can limit the top wave spring 3 to a certain radial position, and the top wave spring 3 is limited to a certain axial position through the compression of the cover 2, the bearing 21 and the limiting sleeve 4, the top wave spring 3 and the washer 5 can play a certain damping and buffering role, and the gap between the rotor and the bearing 21 can be dynamically compensated through the elastic deformation of the top wave spring 3, thereby avoiding the rotor of the motor from generating noise due to the superposition tolerance of the parts, which may cause the motor to be suspended and not fit in place.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A vibration reduction compensation device for a motor, characterized in that: It includes a motor body, a cover, and a shock-absorbing compensation component. The cover is installed at one end of the motor body. A stepped through hole is provided in the middle of the cover, through which the motor shaft of the power supply motor body passes. A bearing is provided between the outer side of the motor shaft and the inner wall of the stepped through hole close to one end of the motor body. The shock-absorbing compensation component is located between the motor body and the cover and is sleeved on the outer side of the motor shaft. The shock-absorbing compensation component includes a top-to-top wave spring and a limit sleeve. The two ends of the top-to-top wave spring respectively resist the limit sleeve and the motor body. One end of the limit sleeve is inserted into the stepped through hole and resists the inner ring of the bearing.

2. A vibration reduction compensation device for a motor as claimed in claim 1, characterized in that: The end of the limiting sleeve close to the motor body is provided with a stepped limiting portion, and one end of the top-to-top wave spring is sleeved outside the stepped limiting portion.

3. A vibration reduction compensation device for a motor as claimed in claim 1, characterized in that: A washer is provided between the top-to-top wave spring and the motor body.

4. A vibration reduction and compensation device for a motor as claimed in claim 1, characterized in that: The cover and the motor body are fastened with a plurality of screws.

5. A vibration reduction compensation device for a motor as claimed in claim 1, characterized in that: The two ends of the top-to-top wave spring respectively abut against the limiting sleeve and the rotor of the motor body.

6. A vibration reduction and compensation device for a motor as claimed in claim 1, characterized in that: The bearing is a rolling bearing.

7. A vibration reduction and compensation device for a motor as claimed in claim 1, characterized in that: The sealing cover is provided with a hollow opening.

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