Motor rear cover connecting structure

Abstract

The utility model relates to the technical field of motor rear covers, and discloses a motor rear cover connecting structure, which comprises a motor casing, a motor front end frame is clamped on the outer wall of the bottom of the motor casing, a connecting mechanism is arranged on the motor casing, the connecting mechanism is used for simply disassembling and assembling a rear cover and the casing, and an auxiliary mechanism is arranged on the connecting mechanism. The auxiliary mechanism is used for assisting in deviation prevention of the rotation center point of the rotor, the connecting mechanism comprises an inner ring sleeve, the inner ring sleeve is fixedly connected to the outer wall of one side of the motor shell, the outer wall of the side face of the inner ring sleeve is fixedly connected with a triangular clamping piece, the outer wall of the side face of the inner ring sleeve is slidably connected with a motor rear cover, and the outer wall of the side face of the motor rear cover is fixedly connected with the triangular clamping piece. A limiting opening is formed in the inner wall of the side face of the motor rear cover. According to the utility model, the triangular clamping sheet, the arc-shaped clamping plate and other structures are arranged, so that the problem that the disassembly and assembly are time-consuming and labor-consuming due to the fact that screws are connected with the motor shell and fixing assemblies such as the screws need to be disassembled through professional tools is solved.

Description

Technical Field

[0001] This utility model relates to the field of motor rear cover technology, and in particular to the connection structure of motor rear cover. Background Technology

[0002] As a crucial component of the motor, the motor's rear cover's connection structure significantly impacts the motor's stability and lifespan. The end covers, typically located at both ends of the motor, are one of the main parts of the rear cover. They protect the internal components of the motor, preventing external impurities such as dust and moisture from entering, thus ensuring the motor's normal operation.

[0003] The bearing cover is another important component of the motor's rear cover, primarily used to support and secure the bearing. As a key component connecting the rotor and stator in a motor, the bearing is crucial for the motor's normal operation. The design and manufacturing quality of the bearing cover directly affects the bearing's stability and lifespan. Bolted connection is a simple and effective method for connecting the motor's rear cover. By creating corresponding bolt holes on both the rear cover and the motor housing, and then tightening them with bolts and nuts, a secure connection between the rear cover and the housing can be achieved.

[0004] The above-mentioned device has the following defects: the traditional motor housing back cover is usually connected to the motor housing with screws. There are many internal components of the motor housing. During long-term use, it is necessary to open it periodically to add lubricating oil for maintenance. The motor back cover must be removed first, but special tools are needed to remove the screws and other fixing components, which makes disassembly and assembly time-consuming and laborious. Therefore, the motor back cover connection structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a motor rear cover connection structure, which aims to improve the problem that the existing motor housing has many internal components, requiring regular opening and maintenance during long-term use, and the disassembly and assembly of screws and other fixing components using professional tools, which is time-consuming and laborious.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a motor rear cover connection structure, including a motor housing, a motor front end bracket snapped onto the bottom outer wall of the motor housing, a connecting mechanism provided on the motor housing, the connecting mechanism being used for easy disassembly and assembly of the rear cover and the housing, an auxiliary mechanism provided on the connecting mechanism, the auxiliary mechanism being used for assisting in preventing deviation of the rotor's rotation center point, the connecting mechanism including an inner ring, the inner ring being fixedly connected to one side outer wall of the motor housing, a triangular clip fixedly connected to the side outer wall of the inner ring, a motor rear cover slidably connected to the side outer wall of the inner ring, a limit opening provided on the side inner wall of the motor rear cover, a positioning post fixedly connected to the side outer wall of the motor housing, a positioning hole provided on the side inner wall of the motor front end bracket, an arc-shaped clamping plate fixedly connected to the bottom outer wall of the positioning post, and a locking slot provided on the side inner wall of the positioning hole.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a rotor shaft self-aligning rubber bushing, which is fixedly connected to the outer side wall of the water pump rotor, and a shock-absorbing rubber retaining ring is slidably connected to the outer side wall of the water pump rotor.

[0008] As a further description of the above technical solution: a sealing ring is fixedly connected to the outer side wall of the inner ring, and the thickness of the sealing ring is four millimeters.

[0009] As a further description of the above technical solution: the triangular card is snapped onto the inner walls of both sides of the limiting port, and the triangular card is fixedly connected to the outer side wall of the arc-shaped card plate with a wear-resistant pad.

[0010] As a further description of the above technical solution: the bayonet passes through the outer wall of the side of the positioning hole, and the arc-shaped card plate is engaged with the inner walls on both sides of the bayonet.

[0011] As a further description of the above technical solution: the thickness of the rotor shaft self-aligning rubber bushing is three millimeters.

[0012] As a further description of the above technical solution: the thickness of the shock-absorbing rubber retaining ring is four millimeters.

[0013] As a further description of the above technical solution: a drive assembly is provided on the front end frame of the motor, the drive assembly includes a water pump rotor, the water pump rotor is rotatably connected to the inner side wall of the front end frame of the motor via bearings, and a mounting plate is fixedly connected to the outer side wall of the front end frame of the motor.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting up structures such as triangular cards, arc-shaped cards, and limiting ports, the electrode housing and the back cover can be easily disassembled and assembled, which facilitates quick maintenance by personnel and improves the problem that the connection between the motor housing and the screws requires the use of professional tools to disassemble the screws and other fixing components, resulting in time-consuming and laborious disassembly and assembly.

[0016] 2. In this utility model, by setting up structures such as rotor shaft self-aligning rubber bushings, the misalignment of the shaft installation caused by the manufacturing tolerances of the parts during the water pump assembly process is addressed by utilizing the elasticity of the rubber bushings to ensure that the shaft remains concentric after installation. This improves the problem that the rotor is prone to center point offset during long-term rotation, which can lead to wear failure inside the motor. Attached Figure Description

[0017] Figure 1 This is a split front view of the motor rear cover connection structure proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the connection mechanism for the motor rear cover connection structure proposed in this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the motor rear cover connection structure proposed in this utility model.

[0020] Legend:

[0021] 1. Motor housing; 2. Motor front end frame; 3. Drive assembly; 4. Mounting plate; 5. Connecting mechanism; 50. Triangular clip; 51. Inner ring sleeve; 52. Sealing ring sleeve; 53. Motor rear cover; 54. Limiting port; 55. Positioning post; 56. Positioning hole; 57. Arc-shaped clamping plate; 58. Bayonet; 6. Auxiliary mechanism; 61. Rotor shaft self-aligning rubber bushing; 62. Shock-absorbing rubber retaining ring. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-3This utility model provides an embodiment of a motor rear cover connection structure, including a motor housing 1. A motor front end bracket 2 is snapped onto the bottom outer wall of the motor housing 1. A connecting mechanism 5 is provided on the motor housing 1 for easy disassembly and assembly of the rear cover and the housing. An auxiliary mechanism 6 is provided on the connecting mechanism 5 for assisting in preventing rotor rotation center point deviation. The connecting mechanism 5 includes an inner ring 51, which is fixedly connected to one side outer wall of the motor housing 1. A triangular clip 50 is fixedly connected to the side outer wall of the inner ring 51. By setting the triangular clip 50 to be made of flexible material, it has elasticity and cooperates with the limiting port 54 to allow the motor rear cover 53 to... The inner ring 51 is slidably connected to the outer side wall of the motor housing 1 and the motor rear cover 53. The inner side wall of the motor rear cover 53 has a limit hole 54. The outer side wall of the motor housing 1 is fixedly connected to the positioning post 55. The inner side wall of the motor front frame 2 has a positioning hole 56. By setting the positioning hole 56 and the positioning post 55 to cooperate with each other, the motor housing 1 and the motor front frame 2 are aligned and aligned. The bottom outer wall of the positioning post 55 is fixedly connected to the arc-shaped clamping plate 57. By setting the arc-shaped clamping plate 57 and the clamping slot 58 to engage with each other, the motor housing 1 and the motor front frame 2 are fixedly engaged and separated. The inner side wall of the positioning hole 56 has a clamping slot 58.

[0024] Reference Figures 1-3 A sealing ring 52 is fixedly connected to the outer side wall of the inner ring 51. The sealing ring 52 is mainly used to prevent external impurities such as dust and moisture from entering the motor. The thickness of the sealing ring 52 is four millimeters. The triangular card 50 is snapped into the inner walls on both sides of the limiting port 54. Wear-resistant pads are fixedly connected to the outer side wall of the triangular card 50 and the arc-shaped card plate 57. Wear-resistant pads are used to reduce the wear between the triangular card 50 and the arc-shaped card plate 57. The bayonet 58 penetrates the outer side wall of the positioning hole 56. The arc-shaped card plate 57 is snapped into the inner walls on both sides of the bayonet 58. A drive assembly 3 is set on the front end frame 2 of the motor. The drive assembly 3 includes a water pump rotor. The water pump rotor is rotatably connected to the inner side wall of the front end frame 2 of the motor through a bearing. A mounting plate 4 is fixedly connected to the outer side wall of the front end frame 2 of the motor.

[0025] Reference Figures 1-3 The auxiliary mechanism 6 includes a rotor shaft self-aligning rubber bushing 61, which is fixedly connected to the outer side wall of the water pump rotor. The purpose of the rotor shaft self-aligning rubber bushing 61 is to ensure that the shaft remains concentric after installation due to misalignment caused by manufacturing tolerances of the parts during the water pump assembly process, by utilizing the elasticity of the rubber bushing. A shock-absorbing rubber retaining ring 62 is slidably connected to the outer side wall of the water pump rotor. The thickness of the rotor shaft self-aligning rubber bushing 61 is three millimeters, and the thickness of the shock-absorbing rubber retaining ring 62 is four millimeters. The purpose of the shock-absorbing rubber retaining ring 62 is to absorb the impact of the axial force generated when the water pump rotor rotates.

[0026] Working principle: When installation is required, align the positioning post 55 of the motor housing 1 with the corresponding positioning hole 56 on the front motor bracket 2. Then, insert the arc-shaped locking plate 57 at the bottom of the positioning post 55 into the positioning hole 56, so that the arc-shaped locking plate 57 is engaged with the inner side wall of the locking slot 58, thereby engaging the motor housing 1 with the front motor bracket 2. Then, put the motor rear cover 53 over the inner ring sleeve 51, and then align the limiting port 54 with the triangular card 50, so that the flexible material of the triangular card 50 is squeezed and unfolded to engage. Within the limiting port 54, the motor rear cover 53 is snapped and fixed to the motor housing 1. When maintenance is required, the triangular card 50 is squeezed to flexibly shrink and separate from the limiting port 54. Then, the motor rear cover 53 is lifted to separate from the limiting port 54 on the motor housing 1. Then, the arc-shaped card plate 57 is squeezed and deformed within the clamping slot 58 to disengage from the clamping slot 58. Then, the motor housing 1 is lifted to separate from the motor front frame 2, exposing most of the internal rotor for easy maintenance and inspection.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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. A motor rear cover connection structure, including a motor housing (1), characterized in that: The bottom outer wall of the motor housing (1) is fitted with a motor front end bracket (2). A connecting mechanism (5) is provided on the motor housing (1). An auxiliary mechanism (6) is provided on the connecting mechanism (5). The connecting mechanism (5) includes an inner ring (51). The inner ring (51) is fixedly connected to one side outer wall of the motor housing (1). A triangular card (50) is fixedly connected to the side outer wall of the inner ring (51). A motor rear cover (53) is slidably connected to the side outer wall of the inner ring (51). A limit opening (54) is opened on the side inner wall of the motor rear cover (53). A positioning post (55) is fixedly connected to the side outer wall of the motor housing (1). A positioning hole (56) is opened on the side inner wall of the motor front end bracket (2). An arc-shaped card plate (57) is fixedly connected to the bottom outer wall of the positioning post (55). A slot (58) is opened on the side inner wall of the positioning hole (56).

2. The motor rear cover connection structure according to claim 1, characterized in that: The auxiliary mechanism (6) includes a rotor shaft self-aligning rubber bushing (61), which is fixedly connected to the outer side wall of the water pump rotor. A shock-absorbing rubber retaining ring (62) is slidably connected to the outer side wall of the water pump rotor.

3. The motor rear cover connection structure according to claim 1, characterized in that: A sealing ring (52) is fixedly connected to the outer side wall of the inner ring (51), and the thickness of the sealing ring (52) is four millimeters.

4. The motor rear cover connection structure according to claim 1, characterized in that: The triangular card (50) is snapped onto the inner walls of both sides of the limiting port (54), and the triangular card (50) is fixedly connected to the outer side wall of the arc-shaped card plate (57) with a wear-resistant pad.

5. The motor rear cover connection structure according to claim 1, characterized in that: The bayonet (58) penetrates the outer wall of the side of the positioning hole (56), and the arc-shaped card plate (57) is engaged with the inner walls on both sides of the bayonet (58).

6. The motor rear cover connection structure according to claim 2, characterized in that: The thickness of the rotor shaft self-aligning rubber bushing (61) is three millimeters.

7. The motor rear cover connection structure according to claim 2, characterized in that: The thickness of the shock-absorbing rubber retaining ring (62) is four millimeters.

8. The motor rear cover connection structure according to claim 1, characterized in that: The motor front end frame (2) is provided with a drive assembly (3), the drive assembly (3) includes a water pump rotor, the water pump rotor is rotatably connected to the inner side wall of the motor front end frame (2) through a bearing, and an mounting plate (4) is fixedly connected to the outer side wall of the motor front end frame (2).

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