Stepping motor with damping function

Abstract

The utility model belongs to the technical field of stepping motors, and particularly relates to a stepping motor with a damping function, which comprises a rotating shaft, a rotor iron core sleeved on the outer side of the rotating shaft and a stator iron core sleeved on the outer side of the rotor iron core. The front cover is arranged on one side of the stator core and comprises a first placing part; a first gasket and a first bearing are sequentially arranged in the first placing part from left to right; the rear cover is arranged on the other side of the stator core and comprises a second placing part; according to the stepping motor with the damping function, gaps between the first bearing and the first placing part and gaps between the second bearing and the second placing part are filled through the first gasket and the second gasket; the sealing performance is improved, axial force of the first bearing and the second bearing is borne, the inclination risk of the first bearing and the second bearing is reduced, the stability of the first bearing and the second bearing is improved, and therefore the effect of reducing vibration and noise is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stepping motors, and in particular relates to a stepping motor with a shock absorption function. Background Art

[0002] A stepper motor, also known as a pulse motor, is an open-loop controlled motor that converts electrical pulse signals into angular or linear displacement. It is the main executive element in modern digital program control systems and is installed near the engine's speed governor.

[0003] During operation, the stepper motor may vibrate easily due to reasons such as unbalanced installation of motor components, tilted installation of bearings, bearing damage or excessive bearing installation clearance, unstable motor installation, etc., which may lead to problems such as loud motor noise, short life, low working efficiency, etc. In severe cases, it may also cause safety problems such as machine damage and production accidents.

[0004] Traditional stepper motors usually use an additional shock-absorbing structure to reduce vibration, but this cannot solve the cause of the motor's own vibration.

[0005] Therefore, in order to solve the above problems, it is necessary to design a stepping motor with a shock absorption function. Utility Model Content

[0006] The purpose of the utility model is to provide a stepping motor with a shock absorption function to solve the technical problem of vibration of the motor itself.

[0007] In order to solve the above technical problems, the utility model provides a stepping motor with a vibration reduction function, comprising:

[0008] A rotating shaft, a rotor core sleeved on the outside of the rotating shaft, and a stator core sleeved on the outside of the rotor core;

[0009] The front cover is arranged on one side of the stator core, and comprises: a first placement portion;

[0010] A first washer and a first bearing are sequentially provided in the first placement portion from left to right; and

[0011] The first washer and the first bearing are in contact and are both sleeved on the rotating shaft;

[0012] The rear cover is arranged on the other side of the stator core, and comprises: a second placement portion;

[0013] A second washer and a second bearing are sequentially provided in the second placement portion from right to left; and

[0014] The second washer and the second bearing are in contact with each other and are both sleeved on the rotating shaft.

[0015] Furthermore, a first contact ring is provided in the first placement portion;

[0016] The first abutting ring abuts against the outer ring of the first bearing.

[0017] Furthermore, the first abutment ring includes: at least three first fixing portions provided with first through holes;

[0018] The first placement portion is provided with at least three first threaded holes;

[0019] The first threaded hole is concentrically arranged with the first through hole; and

[0020] Bolts are suitable for being placed in the first through hole and the first threaded hole, so that the first fixing portion and the first placing portion are fixed by the bolts.

[0021] Furthermore, a second contact ring is provided in the second placement portion;

[0022] The second abutting ring abuts against the outer ring of the second bearing.

[0023] Furthermore, the second abutment ring includes: at least three second fixing portions provided with second through holes;

[0024] The second placement portion is provided with at least three second threaded holes; wherein

[0025] The second threaded hole is concentrically arranged with the second through hole; and

[0026] Bolts are suitable for being placed in the second through hole and the second threaded hole, so that the second fixing portion and the second placement portion are fixed by the bolts.

[0027] Furthermore, the rotating shaft includes: a first step portion;

[0028] The first step portion is suitable for abutting against the inner rings of the first bearing and the second bearing.

[0029] Furthermore, a plurality of coil windings are provided inside the stator core;

[0030] Two winding insulation parts for covering the coil winding are arranged inside the stator core.

[0031] The beneficial effects of the utility model are:

[0032] (1) The present invention provides a first washer and a second washer to fill the gaps between the first bearing and the second bearing and the first placement portion and the second placement portion respectively, thereby improving the sealing performance and bearing the axial force of the first bearing and the second bearing. Secondly, the first abutment ring and the second abutment ring are used to limit the outer rings of the first bearing and the second bearing respectively, and the first step portion is used to limit the inner rings of the first bearing and the second bearing after the rotating shaft is installed, so as to reduce the risk of tilting of the first bearing and the second bearing and improve the stability of the first bearing and the second bearing, thereby achieving the effect of reducing vibration and noise.

[0033] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 The utility model is an explosion Figure 1 ;

[0037] Figure 2 The utility model is an explosion Figure 2 ;

[0038] Figure 3 It is a three-dimensional diagram of a preferred embodiment of the front cover of the utility model;

[0039] Figure 4 It is a three-dimensional diagram of a preferred embodiment of the back cover of the utility model;

[0040] Figure 5 It is an assembly stereogram of the preferred embodiment of the entirety of the present invention.

[0041] In the picture:

[0042] Rotating shaft 1, first step portion 101;

[0043] Rotor core 2, stator core 3, coil winding 301, winding insulation 302;

[0044] Front cover 4, first placement portion 401, first threaded hole 402;

[0045] First washer 5, first bearing 6;

[0046] Back cover 7, second placement portion 701, second threaded hole 702;

[0047] Second washer 8, second bearing 9;

[0048] First abutting ring 10, first fixing portion 1001, first through hole 1002;

[0049] The second abutting ring 11 , the second fixing portion 1101 , and the second through hole 1102 . DETAILED DESCRIPTION

[0050] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention. Example 1

[0051] like Figures 1 to 5 As shown, this embodiment provides a stepping motor with a vibration reduction function, comprising:

[0052] A rotating shaft 1, a rotor core 2 sleeved on the outside of the rotating shaft 1, and a stator core 3 sleeved on the outside of the rotor core 2; a front cover 4 arranged on one side of the stator core 3, comprising: a first placement portion 401; wherein the first placement portion 401 is provided with a first washer 5 and a first bearing 6 in sequence from left to right; and the first washer 5 and the first bearing 6 are in contact and are both sleeved on the rotating shaft 1; a rear cover 7 arranged on the other side of the stator core 3, comprising: a second placement portion 701; wherein the second placement portion 701 is provided with a first washer 5 and a first bearing 6 in sequence from right to left; There is a second washer 8 and a second bearing 9; and the second washer 8 and the second bearing 9 are in contact and are both sleeved on the rotating shaft 1; wherein the rotating shaft 1 and the rotor core 2 are fixedly connected; wherein the rotor core 2 and the stator core 3 are not in contact, which is the most preferred; wherein the rotor core 2 is most preferably equipped with magnetic steel; wherein the front cover 4 and the rear cover 7 are connected to the stator core 3 by, but not limited to, a movable connection; wherein the first washer 5 and the second washer 8 are made of, but not limited to, rubber material; wherein the first washer 5 and the second washer 8 are not in contact with the rotating shaft 1, which is the most preferred.

[0053] A first abutting ring 10 is provided in the first placement portion 401 ; wherein the first abutting ring 10 abuts against the outer ring of the first bearing 6 ; by providing the first abutting ring 10 , the first bearing 6 is limited.

[0054] The first abutment ring 10 includes: at least three first fixing parts 1001 provided with first through holes 1002; at least three first threaded holes 402 are provided on the first placement part 401; wherein the first threaded holes 402 are concentrically arranged with the first through holes 1002; and the first through holes 1002 and the first threaded holes 402 are suitable for placing bolts to fix the first fixing part 1001 to the first placement part 401 by means of the bolts; wherein three first fixing parts 1001 are provided and equidistantly arranged, which is the most preferred arrangement.

[0055] A second abutting ring 11 is provided in the second placement portion 701 ; wherein the second abutting ring 11 abuts against the outer ring of the second bearing 9 ; by providing the second abutting ring 11 , the second bearing 9 is limited.

[0056] The second abutment ring 11 includes: at least three second fixing parts 1101 provided with second through holes 1102; at least three second threaded holes 702 are provided on the second placement part 701; wherein the second threaded holes 702 are concentrically arranged with the second through holes 1102; and the second through holes 1102 and the second threaded holes 702 are suitable for placing bolts to fix the second fixing part 1101 to the second placement part 701 by bolts; wherein three second fixing parts 1101 are provided and they are arranged equidistantly, which is the most preferred arrangement.

[0057] The rotating shaft 1 includes: a first step portion 101; wherein the first step portion 101 is suitable for abutting against the inner rings of the first bearing 6 and the second bearing 9; wherein by providing the first step portion 101, the inner rings of the first bearing 6 and the second bearing 9 are limited after the rotating shaft 1 is installed.

[0058] A plurality of coil windings 301 are provided inside the stator core 3 ; two winding insulation members 302 for covering the coil windings 301 are provided inside the stator core 3 .

[0059] In this embodiment, a first washer 5 and a second washer 8 are provided to fill the gaps between the first bearing 6 and the second bearing 9 and the first placement portion 401 and the second placement portion 701, respectively, to improve the sealing performance while bearing the axial force of the first bearing 6 and the second bearing 9. Secondly, the outer rings of the first bearing 6 and the second bearing 9 are limited by the first abutment ring 10 and the second abutment ring 11, respectively, and the inner rings of the first bearing 6 and the second bearing 9 are limited by the first step portion 101 after the rotating shaft 1 is installed, so as to reduce the risk of tilting of the first bearing 6 and the second bearing 9 and improve the stability of the first bearing 6 and the second bearing 9, thereby achieving the effect of reducing vibration and noise.

[0060] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0061] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0062] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A stepping motor with a shock absorption function, characterized in that: include: A rotating shaft (1), a rotor core (2) sleeved on the outside of the rotating shaft (1), and a stator core (3) sleeved on the outside of the rotor core (2); A front cover (4) provided on one side of the stator core (3) comprises: a first placement portion (401); A first washer (5) and a first bearing (6) are sequentially provided in the first placement portion (401) from left to right; and The first washer (5) and the first bearing (6) are in contact with each other and are both sleeved on the rotating shaft (1); The back cover (7) is arranged on the other side of the stator core (3), and comprises: a second placement portion (701); A second washer (8) and a second bearing (9) are sequentially provided in the second placement portion (701) from right to left; and The second washer (8) and the second bearing (9) are in contact with each other and are both sleeved on the rotating shaft (1).

2. The stepping motor with a vibration reduction function according to claim 1, wherein: A first abutment ring (10) is provided in the first placement portion (401); wherein The first abutment ring (10) abuts against the outer ring of the first bearing (6).

3. The stepping motor with a vibration reduction function according to claim 2, wherein: The first abutment ring (10) comprises: at least three first fixing portions (1001) provided with first through holes (1002); The first placement portion (401) is provided with at least three first threaded holes (402); wherein The first threaded hole (402) is concentrically arranged with the first through hole (1002); and The first through hole (1002) and the first threaded hole (402) are suitable for placing bolts, so that the first fixing portion (1001) and the first placement portion (401) are fixed by the bolts.

4. The stepping motor with a vibration reduction function according to claim 3, wherein: A second abutment ring (11) is provided in the second placement portion (701); wherein The second abutment ring (11) abuts against the outer ring of the second bearing (9).

5. The stepping motor with a vibration reduction function according to claim 4, wherein: The second abutment ring (11) comprises: at least three second fixing portions (1101) provided with second through holes (1102); The second placement portion (701) is provided with at least three second threaded holes (702); wherein The second threaded hole (702) and the second through hole (1102) are arranged concentrically; and The second through hole (1102) and the second threaded hole (702) are suitable for placing bolts, so that the second fixing portion (1101) and the second placement portion (701) are fixed by the bolts.

6. The stepping motor with a vibration reduction function according to claim 5, wherein: The rotating shaft (1) comprises: a first step portion (101); wherein The first step portion (101) is suitable for abutting against the inner rings of the first bearing (6) and the second bearing (9).

7. The stepping motor with a vibration reduction function according to claim 6, wherein: A plurality of coil windings (301) are provided inside the stator core (3); Two winding insulation parts (302) for covering the coil winding (301) are provided inside the stator core (3).

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