High-reliability micro motor eccentric wheel and eccentric motor

Abstract

The high-reliability micro motor eccentric wheel comprises a main eccentric plate and an auxiliary eccentric plate, the main eccentric plate comprises an arc-shaped pressing part arranged in an opening mode, eccentric blocks are formed at the two ends of the arc-shaped pressing part, and after the arc-shaped pressing part is arranged on a rotating shaft of the motor in a sleeved mode, the two eccentric blocks are pressed, so that the rotating shaft of the motor is tightly pressed. The auxiliary eccentric plate is attached to the side face of the main eccentric plate, so that the opening of the arc-shaped pressing part is prevented from being opened; by means of the eccentric wheel composed of the main eccentric plate and the auxiliary eccentric plate, when the eccentric wheel and the motor rotating shaft are installed, a clasping installation mode is adopted, the phenomenon that the motor rotating shaft is bent or crushed in the whole installation process is avoided, and the working process is stable and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of motor eccentric wheels, in particular to a high-reliability micro motor eccentric wheel and an eccentric motor. Background Art

[0002] The Chinese patent with the announcement number CN214380498U discloses a micro motor eccentric wheel structure, including an eccentric wheel body, a center hole is provided at a non-center position of the eccentric wheel body, the center hole has a large hole area and a small hole area, the aperture of the large hole area is larger than the aperture of the small hole area, the center hole is plug-fitted with the motor shaft, and the large hole area in the center hole of the motor shaft is a clearance fit, and the small hole area is an interference fit. The above-mentioned micro motor eccentric wheel structure performs a local interference fit with the motor shaft through different aperture size areas inside the center hole, and does not require the entire center hole to be in contact with the motor shaft, and the interference area is small.

[0003] However, during installation, the eccentric wheel still needs to be pressed onto the motor shaft with force, and this process may still cause the motor shaft to bend or be crushed.

[0004] To this end, we propose a high-reliability micro motor eccentric wheel and an eccentric motor. Utility Model Content

[0005] The purpose of the utility model is to provide a high-reliability micro motor eccentric wheel and an eccentric motor, so as to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A high-reliability micro motor eccentric wheel comprises a main eccentric plate and a secondary eccentric plate, the main eccentric plate comprises an arc-shaped clamping portion arranged in an opening, both ends of the arc-shaped clamping portion are formed with eccentric blocks, after the arc-shaped clamping portion is sleeved on the rotating shaft of the motor, the arc-shaped clamping portion can be clamped on the rotating shaft of the motor by pressing two eccentric blocks together, and the secondary eccentric plate is fitted to the side of the main eccentric plate to prevent the opening of the arc-shaped clamping portion from opening.

[0008] In a high-reliability micro motor eccentric wheel according to the utility model, the inner wall of the arc-shaped pressing portion is provided with a limiting through groove matching the protrusion on the rotating shaft of the motor.

[0009] In a high-reliability micro motor eccentric wheel according to the utility model, the two eccentric blocks are fixedly connected with connecting rods, and the secondary eccentric plate is provided with a limiting hole. After the arc-shaped clamping part is tightly clamped on the rotating shaft of the motor, the limiting hole can be sleeved on the connecting rod.

[0010] In a high-reliability micro motor eccentric wheel according to the utility model, two auxiliary eccentric plates are provided, and the two auxiliary eccentric plates are respectively attached to two sides of the main eccentric plate.

[0011] In a high-reliability micro motor eccentric wheel according to the utility model, a mounting hole is opened on one side of the secondary eccentric plate, and the inner diameter of the mounting hole is larger than the diameter of the rotating shaft of the motor.

[0012] The embodiment of the utility model further provides a motor eccentric wheel, comprising an eccentric motor body, an eccentric wheel being fixedly mounted on the rotating shaft of the eccentric motor body, and the eccentric wheel adopts the high-reliability micro motor eccentric wheel described above.

[0013] The utility model has at least the following beneficial effects:

[0014] The utility model adopts an eccentric wheel composed of a main eccentric plate and a secondary eccentric plate. When the eccentric wheel is installed on the motor shaft, a clamping installation method is adopted. The entire installation process will not cause bending or crushing of the motor shaft, and the working process is relatively stable and highly reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the eccentric wheel structure of a high-reliability micro motor of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the main eccentric plate in the eccentric wheel of the high-reliability micro motor of the utility model;

[0018] Figure 3 The exploded structure diagram of the high-reliability micro motor eccentric wheel of the utility model is shown in FIG.

[0019] Description of Figure Numbers:

[0020] 1. Main eccentric plate; 101. Arc-shaped pressing part; 1011. Limiting through groove; 102. Eccentric block; 1021. Connecting rod; 2. Secondary eccentric plate; 201. Mounting hole; 202. Limiting hole. DETAILED DESCRIPTION

[0021] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Please refer to Figures 1 to 3 As shown, this embodiment provides a high-reliability micro-motor eccentric wheel, including a main eccentric plate 1 and a secondary eccentric plate 2. The main eccentric plate 1 includes an arc-shaped clamping portion 101 arranged in an opening, and eccentric blocks 102 are formed at both ends of the arc-shaped clamping portion 101. After the arc-shaped clamping portion 101 is sleeved on the rotating shaft of the motor, the arc-shaped clamping portion 101 can be tightly held on the rotating shaft of the motor by pressing the two eccentric blocks 102 together, and the arc-shaped clamping portion 101 is attached to the side of the main eccentric plate 1 to prevent the opening of the arc-shaped clamping portion 101 from opening. In the example, the two eccentric blocks 102 are fixedly connected with a connecting rod 1021, and a limiting hole 202 is provided on the secondary eccentric plate 2. After the arc-shaped clamping portion 101 is tightly clamped on the rotating shaft of the motor, the limiting hole 202 can be sleeved on the connecting rod 1021. Among them, two secondary eccentric plates 2 are provided, and the two secondary eccentric plates 2 are respectively attached to the two sides of the main eccentric plate 1. In order to facilitate the installation of the secondary eccentric plate 2, a mounting hole 201 is formed on one side of the secondary eccentric plate 2, and the inner diameter of the mounting hole 201 is larger than the rotating shaft diameter of the motor.

[0023] During installation, one of the secondary eccentric plates 2 is first put on the motor shaft, and then the main eccentric plate 1 is put on the motor shaft. Then, pliers or other pressing tools are used to press the two eccentric blocks 102 so that the arc-shaped pressing part 101 is tightly held on the motor shaft. Then, the secondary eccentric plate 2 first put on the motor shaft is moved toward the direction of the main eccentric plate 1 so that the limiting hole 202 is put on the connecting rod 1021 on one side of the main eccentric plate 1. Then, another secondary eccentric plate 2 is put on the motor shaft, and the limiting hole 202 on the secondary eccentric plate 2 is put on the connecting rod 1021 on the other side of the main eccentric plate 1. In order to further improve the stability, welding equipment can be used to weld the main eccentric plate 1 and the secondary eccentric plate 2 to further improve the stability of the connection between the main eccentric plate 1 and the secondary eccentric plate 2.

[0024] Example 2

[0025] The only difference between this embodiment and Embodiment 1 is that a limiting groove 1011 matching the protrusion on the motor shaft is formed on the inner wall of the arc-shaped clamping portion 101. This arrangement can effectively improve the connection strength between the arc-shaped clamping portion 101 and the motor shaft.

[0026] Example 3

[0027] The present embodiment provides a motor eccentric wheel, comprising an eccentric motor body, an eccentric wheel being fixedly mounted on the rotating shaft of the eccentric motor body, and the eccentric wheel adopts the above-mentioned high-reliability micro motor eccentric wheel.

[0028] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A high-reliability micro motor eccentric wheel, characterized in that: The invention comprises a main eccentric plate (1) and a secondary eccentric plate (2), wherein the main eccentric plate (1) comprises an arc-shaped clamping portion (101) arranged in an opening, and eccentric blocks (102) are formed at both ends of the arc-shaped clamping portion (101). After the arc-shaped clamping portion (101) is sleeved on the rotating shaft of the motor, the arc-shaped clamping portion (101) can be clamped on the rotating shaft of the motor by pressing the two eccentric blocks (102). The secondary eccentric plate (2) is fitted on the side of the main eccentric plate (1) to prevent the opening of the arc-shaped clamping portion (101) from opening.

2. The high-reliability micro motor eccentric wheel according to claim 1, characterized in that: The inner wall of the arc-shaped pressing portion (101) is provided with a limiting through groove (1011) matching the protrusion on the rotating shaft of the motor.

3. The high-reliability micro motor eccentric wheel according to claim 2, characterized in that: The two eccentric blocks (102) are fixedly connected with a connecting rod (1021), and a limiting hole (202) is provided on the secondary eccentric plate (2). After the arc-shaped clamping portion (101) is tightly clamped on the rotating shaft of the motor, the limiting hole (202) can be sleeved on the connecting rod (1021).

4. The high-reliability micro motor eccentric wheel according to claim 3, characterized in that: Two auxiliary eccentric plates (2) are provided, and the two auxiliary eccentric plates (2) are respectively attached to two sides of the main eccentric plate (1).

5. The high-reliability micro motor eccentric wheel according to claim 4, characterized in that: A mounting hole (201) is provided on one side of the secondary eccentric plate (2), and the inner diameter of the mounting hole (201) is larger than the diameter of the rotating shaft of the motor.

6. An eccentric motor, characterized in that: It comprises an eccentric motor body, on the rotating shaft of which an eccentric wheel is fixedly mounted, and the eccentric wheel is the high-reliability micro motor eccentric wheel as claimed in any one of claims 1 to 5.

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