Anti-falling structure for mounting anti-resonance motor end cover
By designing an anti-detachment component, and utilizing a combination of mounting rods, contact plates, and polyurethane materials, the problems of detachment and resonance between the motor end cover and the housing are solved, achieving stable connection and resonance suppression.
Patent Information
- Application Number
- CN202520280216.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The existing motor end cover mounting structure has poor anti-detachment protection and is difficult to suppress resonance between the end cover and the motor housing, which may lead to destructive consequences for the connection mechanism and the housing.
The anti-detachment component adopts a combination structure including a mounting rod, a contact plate, a polyurethane elastic element and an elastic sheet. It is fixed by threaded connection and limiting. The contact plate is attached to the inner wall of the motor housing, and the elasticity and stability of the polyurethane material are used to suppress resonance.
It effectively prevents the motor end cover from detaching, suppresses resonance, enhances connection stability, adapts to different motor housing wall thicknesses, and improves protection.
Smart Images

Figure CN223829139U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motor end cover connection structure, specifically an anti-detachment structure for installing an anti-resonance motor end cover. Background Technology
[0002] An end cover is a rear cover installed behind the housing of a motor or other machine. It is commonly known as an "end cover". Motor end covers are generally fixed to the motor housing by bolts.
[0003] The existing connection structure for motor end cover mounting typically involves providing several extension feet around the end cover, while simultaneously opening grooves in the motor housing corresponding to the number and position of the extension feet. The extension feet are at least partially embedded in the grooves, and AB glue is filled between the extension feet and the grooves, which greatly increases the bonding force between the end cover and the motor housing.
[0004] However, most of the connection structures used for mounting motor end caps on the market currently provide poor protection against end cap detachment and are mostly unable to suppress resonance between the end cap connection and the motor housing. In some cases, resonance may cause serious damage to the connection mechanism and the housing. Therefore, we propose an anti-resonance motor end cap mounting anti-detachment structure to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide an anti-detachment structure for installing an anti-resonance motor end cover, so as to solve the problem mentioned in the background art that most of the connection structures for installing motor end covers on the market have poor anti-detachment protection effect on the end cover and are mostly unable to suppress resonance between the end cover connection and the motor housing.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-detachment structure for installing an anti-resonance motor end cover, comprising a motor end cover body, wherein an installation hole is provided on the end face of the motor end cover body away from the motor housing, and a connecting hole is provided on the end face of the motor end cover body facing the inside of the motor, and a connecting block is provided inside the installation hole;
[0007] A connecting component is provided on the inner side of the connecting hole, and the connecting component includes a mounting rod that is slidably connected to the inside of the motor end cover body through the connecting hole. An anti-detachment component is provided on the outer side of the connecting component, and the anti-detachment component includes an abutment plate disposed on the outer side of the mounting rod.
[0008] As a preferred embodiment of this utility model, the mounting holes and connecting holes are distributed at equal angles with respect to the axis of the motor end cover body, and the inner and outer sides of the motor end cover body are connected to the connecting holes through the mounting holes.
[0009] As a preferred technical solution of this utility model, the inner surface of the mounting hole is provided with a concave thread structure, and the outer surface of the connecting block is provided with a convex thread structure that mates with the mounting hole. The end face of the connecting block away from the connecting component is provided with a groove structure, and the axial section of the groove structure is hexagonal.
[0010] As a preferred embodiment of this utility model, the connecting assembly further includes a connecting piece fixedly connected to one end of the mounting rod. The connecting piece is disposed inside the mounting hole and serves to limit the position of the mounting rod.
[0011] As a preferred embodiment of the present invention, the connecting assembly further includes a first locking block and a second locking block movably connected to the outside of the mounting rod, and the first locking block and the second locking block are respectively disposed on both sides of the contact plate.
[0012] As a preferred embodiment of this utility model, the outer surface of the mounting rod is provided with a convex thread structure, and the inner surfaces of the first locking block and the second locking block are both provided with a concave thread structure that mates with the mounting rod.
[0013] As a preferred embodiment of this utility model, the contact plate has an adjustment groove inside, and the mounting rod is slidably disposed inside the contact plate through the adjustment groove.
[0014] As a preferred technical solution of this utility model, an elastic sheet is fixedly provided on one end face of the contact plate near the motor end cover body, and the elastic sheet is arched and the outer surface of the elastic sheet is fitted to the motor housing. A polyurethane elastic element that supports the elastic sheet is fixedly provided between the contact plate and the elastic sheet.
[0015] Compared with the prior art, the beneficial effects of this utility model are: the anti-detachment structure for installing the anti-resonance motor end cover abuts against the inner wall of the motor housing through the anti-detachment component, thereby playing a role in preventing detachment between the motor end cover body and the motor housing. At the same time, the polyurethane elastic element and elastic sheet are made of soft polyurethane material, which has a certain deformation margin, thereby achieving the effect of suppressing the resonance between the anti-detachment structure and the motor housing.
[0016] 1. Insert the mounting rod into the interior of the motor end cover body through the connecting hole, and fix the mounting rod to the contact plate so that the protruding end of the contact plate faces the axis of the motor end cover body. Fix the motor end cover body to the motor housing. By rotating the connecting piece inside the mounting hole, the connecting piece drives the mounting rod to rotate, thereby rotating the protruding end of the contact plate to the direction opposite to the axis of the motor end cover body. This causes the polyurethane elastic element and elastic sheet to abut against the inner wall of the motor housing, thereby preventing the motor end cover body from detaching.
[0017] Furthermore, by moving the abutment plate along the axis on the outside of the mounting rod, the axial connection position of the abutment plate on the outside of the mounting rod can be adjusted. At the same time, since the mounting rod is slidably set inside the abutment plate through the adjustment groove, by moving the abutment plate laterally on the outside of the mounting rod, the distance between the polyurethane elastic element and the elastic sheet relative to the mounting rod can be adjusted. Then, by rotating the first locking block and the second locking block, the first locking block and the second locking block are pressed against the abutment plate, thereby limiting and fixing the abutment plate, which makes it convenient to adapt the installation position of the anti-detachment component to motor housings with different wall thicknesses.
[0018] 2. A polyurethane elastic element is fixed between the contact plate and the elastic sheet. The polyurethane elastic element supports the elastic sheet. At the same time, the polyurethane elastic element and the elastic sheet are made of soft polyurethane material. Polyurethane has good stability, resilience and mechanical properties. It has high hardness and elasticity, which allows the polyurethane elastic element and the elastic sheet to have a certain deformation margin, thus achieving the effect of suppressing resonance. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;
[0021] Figure 3 This is a cross-sectional structural diagram of the connection between the motor end cover body and the motor housing of this utility model;
[0022] Figure 4 This is a schematic diagram of the explosion structure of the connection component and the anti-detachment component of this utility model.
[0023] In the diagram: 1. Motor end cover body; 2. Mounting hole; 3. Connecting hole; 4. Connecting block; 500. Connecting assembly; 501. Mounting rod; 502. Connecting piece; 503. First locking block; 504. Second locking block; 600. Anti-detachment assembly; 601. Abutment plate; 602. Adjustment groove; 603. Polyurethane elastic element; 604. Elastic piece. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-4This utility model provides a technical solution: an anti-detachment structure for installing an anti-resonance motor end cover, comprising a motor end cover body 1, an installation hole 2 on the end face of the motor end cover body 1 away from the motor housing, and a connection hole 3 on the end face of the motor end cover body 1 facing the inside of the motor, as detailed below. Figure 1 and Figure 2 As shown, the mounting holes 2 and the connecting holes 3 are distributed at equal angles about the axis of the motor end cover body 1, and the inner and outer sides of the motor end cover body 1 are connected to the connecting holes 3 through the mounting holes 2. The mounting holes 2 and the connecting holes 3 serve to connect and fix the connecting component 500 to the motor end cover body 1.
[0026] Specific examples Figure 2 and Figure 3 As shown, a connecting block 4 is provided inside the mounting hole 2, and a connecting component 500 is provided inside both the mounting hole 2 and the connecting hole 3. The connecting component 500 includes a mounting rod 501 that is slidably connected to the inside of the motor end cover body 1 through the connecting hole 3. Figure 4 As shown, the connecting assembly 500 also includes a connecting piece 502 fixedly connected to one end of the mounting rod 501, and the connecting piece 502 is disposed inside the mounting hole 2. Since the inner surface of the mounting hole 2 is provided with a concave thread structure, and the outer surface of the connecting block 4 is provided with a convex thread structure that mates with the mounting hole 2, and the end face of the connecting block 4 away from the connecting assembly 500 is provided with a groove structure, and the axial section of the groove structure is hexagonal, by inserting a hexagonal screwdriver into the groove structure of the connecting block 4, the connecting block 4 is threadedly connected to the motor end cover body 1 through the mounting hole 2. By rotating the connecting block 4, the connecting block 4 is pressed down inside the mounting hole 2, thereby pressing the connecting piece 502, and thus the mounting rod 501 can be fixed inside the motor end cover body 1.
[0027] Specific examples Figure 1 and Figure 3 As shown, an anti-detachment component 600 is provided on the outer side of the connecting component 500, and the anti-detachment component 600 includes an abutment plate 601 disposed on the outer side of the mounting rod 501, combined with Figure 3 and Figure 4As shown, the connecting assembly 500 also includes a first locking block 503 and a second locking block 504 movably connected to the outside of the mounting rod 501. The first locking block 503 and the second locking block 504 are respectively disposed on both sides of the abutment plate 601. Since the outer surface of the mounting rod 501 is provided with a convex thread structure, and the inner surfaces of the first locking block 503 and the second locking block 504 are both provided with a concave thread structure that cooperates with the mounting rod 501, the first locking block 503 and the second locking block 504 are both threadedly connected to the mounting rod 501. By rotating the first locking block 503 and the second locking block 504, the first locking block 503 and the second locking block 504 press and limit the two end faces of the abutment plate 601, thereby fixing the abutment plate 601 to the outside of the mounting rod 501.
[0028] Furthermore, by rotating the first locking block 503 and the second locking block 504, the connection position between the first locking block 503 and the second locking block 504 and the mounting rod 501 can be adjusted, thereby changing the axial connection position of the abutment plate 601 on the outside of the mounting rod 501. By changing the axial connection position of the abutment plate 601 on the outside of the mounting rod 501, the installation position of the anti-detachment component 600 can be adapted to motor housings with different wall thicknesses.
[0029] Furthermore, since the contact plate 601 has an adjustment groove 602 inside, and the mounting rod 501 is slidably disposed inside the contact plate 601 through the adjustment groove 602, combined with... Figure 3 and Figure 4 As shown, when fixing the mounting rod 501 and the contact plate 601, the connection position between the contact plate 601 and the mounting rod 501 is changed by moving the contact plate 601 laterally outside the mounting rod 501. Then, the first locking block 503 and the second locking block 504 limit and fix the contact plate 601, so that the installation position of the anti-detachment component 600 can be adapted to motor housings with different wall thicknesses.
[0030] Specific examples Figure 3 and Figure 4 As shown, an elastic piece 604 is fixedly installed on one end face of the contact plate 601 near the motor end cover body 1. Since the elastic piece 604 is arched, its outer surface fits against the inner wall of the motor housing, thus limiting and pressing the motor housing and the motor end cover body 1 together, thereby preventing the connection between the motor end cover body 1 and the motor housing from detaching. Figure 4As shown, a polyurethane elastic element 603 is fixedly disposed between the contact plate 601 and the elastic sheet 604. The polyurethane elastic element 603 supports the elastic sheet 604. At the same time, the polyurethane elastic element 603 and the elastic sheet 604 are made of soft polyurethane material. Polyurethane has good stability, resilience and mechanical properties, high hardness and elasticity, which enables the polyurethane elastic element 603 and the elastic sheet 604 to have smaller compressive deformation.
[0031] The working principle of this utility model is as follows: When using the anti-resonance motor end cover installation anti-detachment structure, firstly, insert the mounting rod 501 into the interior of the motor end cover body 1 through the connecting hole 3, and then fix the mounting rod 501 to the contact plate 601, so that the protruding end of the contact plate 601 faces the axial direction of the motor end cover body 1, specifically as follows: Figure 4 As shown, the connection position between the mounting rod 501 and the contact plate 601 is adjusted according to the wall thickness of the motor housing. By rotating the first locking block 503 and the second locking block 504, the first locking block 503 and the second locking block 504 press and limit the two end faces of the contact plate 601, thereby fixing the contact plate 601 to the outside of the mounting rod 501.
[0032] Specific examples Figure 1 and Figure 3 As shown, the motor end cover body 1 is fixedly connected to the motor housing. By rotating the connecting piece 502 inside the mounting hole 2, the connecting piece 502 drives the mounting rod 501 to rotate, thereby rotating the protruding end of the contact plate 601 to the direction opposite to the axis of the motor end cover body 1. This causes the polyurethane elastic element 603 and the elastic sheet 604 to abut against the inner wall of the motor housing, thus preventing the motor end cover body 1 from detaching. At the same time, since the polyurethane elastic element 603 and the elastic sheet 604 are made of polyurethane material, they have a certain deformation allowance, which can suppress resonance.
[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An anti-detachment structure for mounting an anti-resonance motor end cover, comprising a motor end cover body (1), characterized in that: The motor end cover body (1) has a mounting hole (2) on the side face away from the motor housing, and a connecting hole (3) is provided on the side face of the motor end cover body (1) facing the inside of the motor. A connecting block (4) is provided inside the mounting hole (2). A connecting component (500) is provided on the inner side of the connecting hole (3), and the connecting component (500) includes a mounting rod (501) that is slidably connected to the inside of the motor end cover body (1) through the connecting hole (3). An anti-detachment component (600) is provided on the outer side of the connecting component (500), and the anti-detachment component (600) includes an abutment plate (601) provided on the outer side of the mounting rod (501).
2. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 1, characterized in that: The mounting hole (2) and the connecting hole (3) are both distributed at equal angles with respect to the axis of the motor end cover body (1), and the inner and outer sides of the motor end cover body (1) are connected to the connecting hole (3) through the mounting hole (2).
3. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 2, characterized in that: The inner surface of the mounting hole (2) is provided with a concave thread structure, and the outer surface of the connecting block (4) is provided with a convex thread structure that mates with the mounting hole (2). The end face of the connecting block (4) away from the connecting component (500) is provided with a groove structure, and the axial section of the groove structure is hexagonal.
4. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 1, characterized in that: The connecting assembly (500) further includes a connecting piece (502) fixedly connected to one end of the mounting rod (501). The connecting piece (502) is disposed inside the mounting hole (2) and serves to limit the mounting rod (501).
5. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 4, characterized in that: The connecting assembly (500) further includes a first locking block (503) and a second locking block (504) movably connected to the outside of the mounting rod (501), and the first locking block (503) and the second locking block (504) are respectively disposed on both sides of the abutment plate (601).
6. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 5, characterized in that: The outer surface of the mounting rod (501) is provided with a convex thread structure, and the inner surfaces of the first locking block (503) and the second locking block (504) are both provided with a concave thread structure that mates with the mounting rod (501).
7. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 6, characterized in that: The contact plate (601) has an adjustment groove (602) inside, and the mounting rod (501) is slidably disposed inside the contact plate (601) through the adjustment groove (602).
8. The anti-detachment structure for mounting an anti-resonance motor end cover according to claim 7, characterized in that: An elastic sheet (604) is fixedly provided on one end face of the contact plate (601) near the motor end cover body (1), and the elastic sheet (604) is arched. The outer surface of the elastic sheet (604) is attached to the motor housing. A polyurethane elastic element (603) is fixedly provided between the contact plate (601) and the elastic sheet (604) to support the elastic sheet (604).