Commutator capable of preventing high-rotation-speed bending deformation

Abstract

The utility model belongs to the technical field of commutator processing, and particularly relates to a commutator capable of preventing bending deformation at a high rotating speed, which comprises a connecting sleeve, the connecting sleeve is in a through hollow shape, a group of commutator segments are distributed on the inner ring of the connecting sleeve at equal intervals, and a rubber pad is connected between the commutator segments in a clamping manner. According to the utility model, through the cooperation of the sliding block and the sliding groove and the use of the rubber pad, the connection between the commutator segment and the connecting sleeve becomes stable, so that the commutator segment and the connecting sleeve are stable and do not collide with an object in the grinding and polishing process of the commutator. Meanwhile, the use of the positioning pin and the silica gel plug prevents the silica gel plug from causing the commutator segment to drive the sliding block to move out of the sliding groove due to the centrifugal force of high-speed rotation, and similarly, the positioning pin abuts against the rubber pad, and also prevents the rubber pad from moving out due to the centrifugal force of high-speed rotation.

Description

Technical Field

[0001] The utility model belongs to the technical field of commutator processing, and particularly relates to a commutator with anti-high-speed rotation bending deformation. Background Art

[0002] A commutator, also known as a collector, is an important component on the armature of a DC motor and an AC commutator motor. The function of the commutator is to change the direction of the current when the motor rotates to ensure that the motor can continue to rotate.

[0003] The commutator is composed of an insulating sleeve and commutator segments. During the processing of the commutator, the commutator will go through processes such as grinding and polishing. During the grinding and polishing process, the commutator will rotate at a high speed. In this case, if the commutator segments collide with an object during the high-speed rotation, it is easy to cause the bending deformation of the commutator segments. In view of this, we provide a commutator with anti-high-speed rotation bending deformation to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a commutator with anti-high-speed rotation bending deformation, aiming to solve the problem in the prior art that the commutator is composed of an insulating sleeve and commutator segments. During the processing of the commutator, the commutator will go through processes such as grinding and polishing. During the grinding and polishing process, the commutator will rotate at a high speed. In this case, if the commutator segments collide with an object during the high-speed rotation, it is easy to cause the bending deformation of the commutator segments. In view of this, we provide a commutator with anti-high-speed rotation bending deformation to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A commutator with anti-high-speed rotation bending deformation, including a connecting sleeve. The connecting sleeve is a through hollow shape, and a group of commutator segments are equally spaced on the inner circle of the connecting sleeve. A rubber pad is snap-connected between the group of commutator segments. A chute is opened at the top of the connecting sleeve. A slider is connected to the outer side wall of the commutator segment. A docking hole is opened on the inner wall of the inner circle of the connecting sleeve, and a positioning pin is connected inside the docking hole. A silica gel plug is connected to the top of the chute.

[0006] Preferably, as a commutator with anti-high-speed rotation bending deformation of the utility model, a group of the commutator segments are thirty and are equally spaced on the inner wall of the connecting sleeve. The number of the chutes is the same as that of the commutator segments and is opened at the top of the connecting sleeve.

[0007] Preferably, as a commutator with anti-high-speed rotation bending deformation of the utility model, the commutator segment is slidably connected inside the chute through the slider.

[0008] Preferably, as a commutator of the present utility model with anti-high-speed rotation bending deformation, the slider is adapted to the chute and is in a convex shape, and the size of the silica gel plug is larger than that of the chute.

[0009] Preferably, as a commutator of the present utility model with anti-high-speed rotation bending deformation, the inner wall of the docking hole is provided with threads, the protruding end of the positioning pin is provided with threads, and the positioning pin is threadedly connected to the inner wall of the connecting sleeve through the docking hole.

[0010] Preferably, as a commutator of the present utility model with anti-high-speed rotation bending deformation, the bottom end of the positioning pin abuts against the top end of the rubber pad, and there are four positioning pins, and every two positioning pins are distributed with respect to the midline of the connecting sleeve.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] Through the cooperation of the slider and the chute of the present utility model, and by using the rubber pad, the connection between the commutator segment and the connecting sleeve becomes stable. Furthermore, during the grinding and polishing process of the commutator, the stability between the commutator segment and the connecting sleeve will not collide with objects, thereby playing a role in preventing high-speed rotation bending deformation. At the same time, the use of the positioning pin and the silica gel plug prevents the situation where the centrifugal force of high-speed rotation causes the commutator segment to drive the slider out of the chute. Similarly, the positioning pin abutting against the rubber pad also prevents the situation where the centrifugal force of high-speed rotation causes the rubber pad to move out. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is the schematic diagram of the main structure of the present utility model;

[0015] Figure 2 is the schematic diagram of the main structure of the present utility model when viewed from below;

[0016] Figure 3 is the schematic diagram of the disassembled structure of the main body of the present utility model;

[0017] Figure 4 is the schematic diagram of the structure of the connecting sleeve and the positioning pin of the present utility model;

[0018] Figure 5 is the schematic diagram of the commutator segment structure of the present utility model.

[0019] In the figure: 1, connecting sleeve; 2, commutator segment; 3, rubber pad; 4, chute; 5, slider; 6, positioning pin; 7, docking hole; 8, silica gel plug. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-5 , the present invention provides the following technical solutions: A commutator with anti-high-speed bending deformation includes a connecting sleeve 1. The connecting sleeve 1 is a through hollow shape, and a group of commutator segments 2 are equally spaced on the inner circle of the connecting sleeve 1. A rubber pad 3 is snap-connected between a group of commutator segments 2. A chute 4 is opened at the top of the connecting sleeve 1. A slider 5 is connected to the outer side wall of the commutator segment 2. A docking hole 7 is opened on the inner wall of the inner circle of the connecting sleeve 1. A positioning pin 6 is connected inside the docking hole 7. A silica gel plug 8 is connected to the top of the chute 4.

[0022] Preferably: A group of commutator segments 2 are thirty and are equally spaced on the inner wall of the connecting sleeve 1. The chute 4 is opened at the top of the connecting sleeve 1 with the same number as the commutator segments 2.

[0023] During specific use, the commutator segment 2 is conveniently connected to the chute 4 through the slider 5, thereby stabilizing the connection between the commutator segment 2 and the connecting sleeve 1, thus playing a role in stable connection.

[0024] Preferably: The commutator segment 2 is slidably connected to the inside of the chute 4 through the slider 5.

[0025] During specific use, the commutator segment 2 can conveniently slide along the chute 4 through the slider 5, so as to be fixed on the inner wall of the connecting sleeve 1, thereby playing a role in facilitating docking.

[0026] Preferably: The slider 5 is adapted to the chute 4 and is in a convex shape. The size of the silica gel plug 8 is larger than the size of the chute 4.

[0027] During specific use, the gap between the adapted slider 5 and the chute 4 will not be too large, thereby providing stability for the connection between the commutator segment 2 and the connecting sleeve 1.

[0028] Preferably: The inner wall of the docking hole 7 is provided with threads, the protruding end of the positioning pin 6 is provided with threads, and the positioning pin 6 is threadedly connected to the inner wall of the connecting sleeve 1 through the docking hole 7.

[0029] During specific use, the positioning pin 6 can be conveniently screwed into the docking hole 7 for fixation. Then, the bottom end of the positioning pin 6 abuts against the top end of the rubber pad 3, thereby playing a role in fixing the rubber pad 3.

[0030] Preferably, the bottom end of the positioning pin 6 abuts against the top end of the rubber pad 3, and four positioning pins 6 are provided. Every two positioning pins 6 are distributed symmetrically about the central dividing line of the connecting sleeve 1.

[0031] During specific use, the two positioning pins 6 are distributed on the left and right sides of the rubber pad 3, so as to further fix the connection between the rubber pad 3 and the commutator segment 2.

[0032] Working principle: When the commutator undergoes processes such as grinding and polishing, take out the rubber pad 3 and press it into the opening of the commutator segment 2, then take out the positioning pin 6 and screw it into the docking hole 7 for fixation. At the same time, the bottom end of the positioning pin 6 abuts against the top end of the rubber pad 3, thus completing the fixation of the rubber pad 3. Subsequently, take out the silica gel plug 8 and insert it into the sliding groove 4, so that the commutator segment 2 is fixed through the sliding of the sliding block 5 and the sliding groove 4 with the connecting sleeve 1. At the same time, the cooperation between the sliding block 5 and the sliding groove 4 makes the connection between the commutator segment 2 and the connecting sleeve 1 stable. Therefore, during the grinding and polishing process of the commutator, the stability of the connection between the commutator segment 2 and the connecting sleeve 1 will not collide with objects, thus playing a role in preventing high-speed bending deformation.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A commutator with anti-high-speed bending deformation, comprising a connecting sleeve (1), characterized in that: The connecting sleeve (1) is in a through-hollow shape, and a group of commutator segments (2) are evenly distributed on the inner ring of the connecting sleeve (1); A rubber pad (3) is snap-connected between a group of the commutator segments (2). A chute (4) is formed at the top end of the connecting sleeve (1). A slider (5) is connected to the outer side wall of the commutator segment (2). A docking hole (7) is formed in the inner wall of the inner ring of the connecting sleeve (1), a positioning pin (6) is connected inside the docking hole (7), and a silica gel plug (8) is connected to the top end of the chute (4).

2. The commutator with anti-high-speed bending deformation according to claim 1, wherein: A group of the commutator segments (2) are thirty in number and are evenly distributed on the inner wall of the connecting sleeve (1). The number of the chutes (4) is the same as that of the commutator segments (2) and are formed at the top end of the connecting sleeve (1).

3. A commutator with anti-high-speed bending deformation according to claim 1, characterized in that: The commutator segment (2) is slidably connected inside the chute (4) through the slider (5).

4. A commutator with anti-high-speed bending deformation according to claim 1, characterized in that: The slider (5) is adapted to the chute (4) and is in a convex shape. The size of the silica gel plug (8) is larger than that of the chute (4).

5. A commutator with anti-high-speed bending deformation according to claim 1, characterized in that: Threads are formed on the inner wall of the docking hole (7), threads are formed on the protruding end of the positioning pin (6), and the positioning pin (6) is threadedly connected to the inner wall of the connecting sleeve (1) through the docking hole (7).

6. The commutator with anti-high-speed bending deformation according to claim 1, wherein: The bottom end of the positioning pin (6) abuts against the top end of the rubber pad (3), and there are four positioning pins (6). Every two positioning pins (6) are distributed with respect to the central dividing line of the connecting sleeve (1).

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