Split type anti-resonance motor end cover

Abstract

The utility model discloses a split type anti-resonance motor end cover, and relates to the technical field of motor end covers. The split type anti-resonance motor end cover comprises an outer end cover, an inner end cover and a bearing seat arranged in the inner end cover, a motor shaft is fixedly connected with the inner wall of the bearing seat, and reinforcing ribs are arranged between the outer end cover and the inner end cover. According to the device, the motor end cover is made of a damping alloy material, so that the transmission of vibration can be effectively weakened, the damper and the spring are arranged between the inner end cover and the bearing seat, and the end cover is not easy to resonate with the vibration of the motor by utilizing the damping material and a vibration reduction structure, so that the vibration and noise level is effectively reduced; the motor end cover is effectively protected, the reinforcing ribs are arranged between the outer end cover and the inner end cover, resonance is further prevented, and the overall quality of the motor end cover is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor end cover technology, specifically a split-type anti-resonance motor end cover. Background Technology

[0002] In industrial production, many automated devices require motors for driving, such as those in machine tools and conveyor belts. If the motors vibrate excessively during operation, it will not only affect the processing accuracy and operational stability of the equipment, but may also lead to equipment failure. Using a split-type anti-resonance motor end cover can improve the operational reliability of the motor. The split-type anti-resonance motor end cover is mainly composed of an inner end cover and an outer end cover. The inner end cover is coupled to the motor shaft through a bearing seat set inside it.

[0003] When the motor is running, the rotation of the motor output shaft will generate continuous vibration. Over time, the end cover connected to it will resonate under its influence. Since the motor shaft is connected to the inner end cover through bearings, under normal circumstances, there is a relatively stable rotational contact between the inner and outer rings and the balls of the bearing. However, under resonance, this contact becomes abnormally violent, and the balls will jump irregularly in the raceway, which greatly increases the friction and wear between the various components of the bearing. At the same time, the fixing bolts at the connection between the inner end cover and the outer end cover will also loosen, causing misalignment between the motor end cover and the motor, affecting the normal use of the end cover. In view of the shortcomings of the existing technology, we propose a split anti-resonance motor end cover to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a split-type anti-resonance motor end cover, which solves the problem that under long-term resonance, the balls installed in the bearing inside the motor end cover will bounce irregularly in the raceway, which greatly increases the friction and wear between the bearing components. At the same time, the fixing bolts at the connection between the inner end cover and the outer end cover will also loosen, causing misalignment between the motor end cover and the motor, affecting the normal use of the end cover.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type anti-resonance motor end cover, comprising an outer end cover, an inner end cover, and a bearing seat disposed inside the inner end cover, wherein a protective mechanism is provided between the inner end cover and the bearing seat, the protective mechanism comprising:

[0006] The protective plates, multiple sets of the protective plates are disposed inside the inner end cover, and one side of the multiple sets of protective plates is connected to the outer wall of the bearing seat;

[0007] A damper is disposed between one side of the protective plate and the inner wall of the inner end cover, and a spring is disposed on the outer wall of the damper;

[0008] A connecting assembly is disposed between the outer end cover and the inner end cover. The connecting assembly includes a positioning plug fixedly connected to one side of the inner end cover, a positioning seat fixedly connected to the outer wall of the outer end cover, and a positioning screw for locking the connection between the positioning plug and the positioning seat.

[0009] Preferably, one side of the outer end cap has an end hole for positioning and installing the inner end cap.

[0010] Preferably, a first reinforcing rib is fixedly provided between the inner wall of the outer end cap and the outer wall of the inner end cap.

[0011] Preferably, the outer wall of the inner end cover is fixedly provided with a second reinforcing rib corresponding to the position of the first reinforcing rib, and a locking screw for connecting and fixing the first reinforcing rib and the second reinforcing rib is rotatably provided on one side of the first reinforcing rib.

[0012] Preferably, one end of the first reinforcing rib is provided with a slot for positioning and installing the second reinforcing rib.

[0013] Preferably, both the inner end cap and the protective plate are made of damping alloy material.

[0014] Preferably, both the positioning plug and the positioning seat are made of sealing material.

[0015] This utility model discloses a split-type anti-resonance motor end cover, which has the following beneficial effects: This split-type anti-resonance motor end cover is made of damping alloy material, which can effectively reduce the transmission of vibration. A damper and spring are set between the inner end cover and the bearing seat. By using damping material and vibration reduction structure, the end cover is not easy to resonate with the vibration of the motor, thereby effectively reducing the vibration and noise level and effectively protecting the motor end cover. Furthermore, a reinforcing rib is set between the outer end cover and the inner end cover to further prevent resonance and improve the overall quality of the motor end cover. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of the outer end cap and connecting components of this utility model;

[0019] Figure 3This is an exploded view of the outer end cap and inner end cap structure of this utility model;

[0020] Figure 4 This is an exploded view of the positioning seat and positioning plug-in structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the first reinforcing rib structure of this utility model;

[0022] Figure 6 This is an exploded view of the inner end cap and bearing seat structure of this utility model;

[0023] Figure 7 This is a plan view of the internal structure of the inner end cap of this utility model.

[0024] In the diagram: 1. Outer end cap; 11. End hole; 2. Inner end cap; 3. Bearing seat; 4. Protective mechanism; 41. Protective plate; 42. Damper; 43. Spring; 44. Connecting assembly; 441. Positioning plug; 442. Positioning seat; 443. Positioning screw; 5. First reinforcing rib; 6. Second reinforcing rib; 61. Slot; 62. Locking screw. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This application provides a split-type anti-resonance motor end cover, which solves the problem that under long-term resonance, the balls installed in the bearing inside the motor end cover will jump irregularly in the raceway, which greatly increases the friction and wear between the bearing components. At the same time, the fixing bolts at the connection between the inner end cover and the outer end cover will also loosen, causing misalignment between the motor end cover and the motor, affecting the normal use of the end cover. This achieves anti-resonance between the inner end cover and the bearing seat supporting the motor shaft, as well as between the inner end cover and the outer end cover.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] This utility model discloses a split-type anti-resonance motor end cover.

[0029] According to the appendix Figure 1-7As shown, it includes an outer end cover 1, an inner end cover 2, and a bearing seat 3 disposed inside the inner end cover 2. The outer end cover 1 and the inner end cover 2 constitute an anti-resonance motor end cover. The motor shaft is fixedly connected to the inner wall of the bearing seat 3. The inner end cover 2 is mainly made of damping alloy materials, which can effectively reduce the transmission of vibration. The outer end cover 1 is mainly made of aluminum alloy materials, which, while ensuring a certain strength of the outer end cover 1, helps to reduce the overall weight of the outer end cover 1.

[0030] See attached document Figure 2-7 A protective mechanism 4 is provided between the inner end cover 2 and the bearing housing 3. This protective mechanism 4 dampens vibrations between the bearing housing 3 (connected to the motor shaft) and the inner end cover 2, preventing strong resonance between the anti-resonance motor end cover and the motor. The protective mechanism 4 includes protective plates 41, with multiple sets of protective plates 41 disposed inside the inner end cover 2. All protective plates 41 are made of damping alloy material, and one side of each set of protective plates 41 is fixedly connected to the outer wall of the bearing housing 3. A damper 42 is disposed between one side of the protective plate 41 and the inner wall of the inner end cover 2. The outer surface of the damper 42... A spring 43 is provided on the wall. One end of the spring 43 is connected to the inner wall of the inner end cover 2, and the other end of the spring 43 is connected to one side of the protective plate 41. The vibration characteristics of the motor end cover are changed by using damping material, damper 42 and spring 43. For example, the damping material can convert vibration energy into other forms of energy such as heat energy and dissipate it. The damper and spring 43 can cut off the direct transmission path of vibration from the motor rotor to the end cover, making it less likely for the end cover to resonate with the vibration of the motor, thereby effectively reducing the vibration and noise level and effectively protecting the motor end cover.

[0031] See attached document Figure 2-5 The outer end cover 1 has an end hole 11 on one side for positioning and installing the inner end cover 2. The connecting component 44 is disposed between the outer end cover 1 and the inner end cover 2. The connecting component 44 enables convenient disassembly and assembly between the outer end cover 1 and the inner end cover 2, and allows undamaged parts to be reused multiple times. The connecting component 44 includes a positioning plug 441 fixedly connected to one side of the inner end cover 2, a positioning seat 442 fixedly connected to the outer wall of the outer end cover 1, and a positioning screw 44 for locking the connection between the positioning plug 441 and the positioning seat 442. 3. Both the positioning plug 441 and the positioning seat 442 are made of sealing material. The outer end cover 1 and the inner end cover 2 are designed separately. When it is necessary to inspect or maintain the inside of the motor, the positioning screw 443 can be removed from the positioning plug 441 and the positioning seat 442 by rotating the positioning screw 443. Then the inner end cover 2 and the outer end cover 1 can be easily removed, which is convenient for operators to operate inside the motor. In addition, when the inner end cover 2 or the outer end cover 1 is damaged, the undamaged parts can be reused, which effectively reduces the overall cost.

[0032] See attached document Figure 4-5 A first reinforcing rib 5 is fixedly installed between the inner wall of the outer end cover 1 and the outer wall of the inner end cover 2. A second reinforcing rib 6, corresponding to the position of the first reinforcing rib 5, is fixedly installed on the outer wall of the inner end cover 2. The first and second reinforcing ribs 5 and 6 effectively increase the overall support strength of the combined inner end cover 2 and outer end cover 1, allowing the multiple sets of reinforcing ribs to better withstand these forces and prevent deformation and cracking of the motor end cover due to stress. In particular, when the natural frequency of the motor end cover is close to the vibration frequency of the motor, resonance will occur, leading to a sharp increase in vibration and noise. The multiple sets of reinforcing ribs can adjust the mass distribution and stiffness characteristics of the motor end cover, thereby changing... Its natural frequency avoids resonance. At the same time, multiple sets of reinforcing ribs can also disperse vibration energy to a certain extent. When vibration is transmitted to the motor end cover, multiple sets of reinforcing ribs can disperse the vibration energy throughout the entire motor end cover structure, reduce local vibration concentration, further reduce vibration amplitude, and improve motor stability. A locking screw 62 is rotatably provided on one side of the first reinforcing rib 5 for connecting and fixing the first reinforcing rib 5 and the second reinforcing rib 6. A slot 61 is opened at one end of the first reinforcing rib 5 for positioning and installing the second reinforcing rib 6, so that the connection position between the inner end cover 2 and the outer end cover 1 can be positioned through the first reinforcing rib 5 and the second reinforcing rib 6.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-type anti-resonance motor end cover, comprising an outer end cover (1), an inner end cover (2), and a bearing seat (3) disposed inside the inner end cover (2), characterized in that, A protective mechanism (4) is provided between the inner end cover (2) and the bearing seat (3), the protective mechanism (4) comprising: Protective plate (41), multiple sets of the protective plates (41) are disposed inside the inner end cover (2), and one side of the multiple sets of protective plates (41) is connected to the outer wall of the bearing seat (3); A damper (42) is disposed between one side of the protective plate (41) and the inner wall of the inner end cover (2), and a spring (43) is disposed on the outer wall of the damper (42); A connecting component (44) is disposed between the outer end cover (1) and the inner end cover (2). The connecting component (44) includes a positioning plug (441) fixedly connected to one side of the inner end cover (2), a positioning seat (442) fixedly connected to the outer wall of the outer end cover (1), and a positioning screw (443) for locking the connection between the positioning plug (441) and the positioning seat (442).

2. The split-type anti-resonance motor end cover according to claim 1, characterized in that: The outer end cap (1) has an end hole (11) on one side for positioning and installing the inner end cap (2).

3. A split-type anti-resonance motor end cover according to claim 1, characterized in that: A first reinforcing rib (5) is fixedly provided between the inner wall of the outer end cap (1) and the outer wall of the inner end cap (2).

4. A split-type anti-resonance motor end cover according to claim 3, characterized in that: The outer wall of the inner end cap (2) is fixedly provided with a second reinforcing rib (6) corresponding to the position of the first reinforcing rib (5), and a locking screw (62) for connecting and fixing the first reinforcing rib (5) and the second reinforcing rib (6) is rotatably provided on one side of the first reinforcing rib (5).

5. A split-type anti-resonance motor end cover according to claim 4, characterized in that: One end of the first reinforcing rib (5) is provided with a slot (61) for positioning and installing the second reinforcing rib (6).

6. A split-type anti-resonance motor end cover according to claim 1, characterized in that: Both the inner end cap (2) and the protective plate (41) are made of damping alloy material.

7. A split-type anti-resonance motor end cover according to claim 1, characterized in that: Both the positioning plug (441) and the positioning seat (442) are made of sealing material.

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