Disassembly-free motor end cover

By designing a maintenance port and sealing structure for a non-removable motor end cover, the problems of cumbersome disassembly and reduced sealing performance of traditional motor end covers are solved, achieving efficient maintenance and sealing, and ensuring the safety and service life of the motor.

CN223502659UActive Publication Date: 2025-10-31HUAIAN KEDI HARDWARE PLASTIC CO LTD
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Patent Information

Application Number
CN202422932951.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-10-31
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Traditional motor end caps require disassembly during inspection or maintenance, which is a cumbersome process that can easily damage other components, affecting motor performance and sealing performance. Frequent disassembly also increases the risk of impurities entering the motor.

Method used

Design a non-removable motor end cover, including an inspection port and a sealing plate. Maintenance operations are performed through the inspection port, and a high-temperature and corrosion-resistant sealing gasket and a dustproof screen are used to ensure a good seal. At the same time, heat dissipation holes and a dustproof structure are provided to prevent impurities from entering.

Benefits of technology

It enables maintenance without disassembling the end cover, saving time and manpower, avoiding component damage, improving sealing performance and heat dissipation, reducing the entry of impurities, and ensuring safe and reliable operation of the motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a disassembly-free motor end cover, which relates to the technical field of motor components and comprises an end cover assembly, the end cover assembly comprises an end cover, a disassembly-free maintenance assembly is fixedly mounted at the top of the end cover assembly, and a maintenance port is formed in the top of the end cover in a penetrating manner. Maintenance personnel can conveniently carry out overhaul or maintenance operation through the overhaul opening, the whole motor end cover does not need to be disassembled, the overhaul efficiency is improved, damage to other parts of the motor in the disassembly and assembly process is avoided, meanwhile, sealing performance reduction caused by frequent disassembly is avoided, meanwhile, the risk that impurities enter the motor can be reduced through the sealing gasket, and the service life of the motor is prolonged. Meanwhile, after the access hole is closed, the pressing groove and the sealing plate are pressed downwards through the pressing block, it is ensured that the sealing gasket is tightly attached to the access hole, the sealing effect is improved, operation is convenient and fast, a user can operate conveniently, and convenience and stability of opening and closing of the access hole are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of motor component technology, and in particular to a non-removable motor end cover. Background Technology

[0002] To protect the motor, motor end covers are usually installed on it. The motor end cover provides support for the stator and rotor of the motor, ensuring the stability of the internal structure of the motor. It works with the motor frame to fix the core components of the motor, such as the stator and rotor, in the correct position, preventing displacement or loosening during motor operation and ensuring normal operation of the motor. When the motor needs to be repaired and maintained, the motor end cover needs to be separated from the motor body to facilitate the repair and maintenance of the internal components of the motor.

[0003] For example, Chinese patent CN220754497U discloses a non-removable motor end cover, including an end cover for mounting a motor; a bearing is installed on the edge of the central shaft hole of the end cover, and a synchronous sleeve is installed on the bearing along the inner end face of the end cover. Several sets of blades are evenly distributed on the outer ring of the synchronous sleeve. The blades are fitted into the gaps opened in the inner plate. Four sets of shaft insertion grooves are opened on the outer ring of the inner plate. A shaft is inserted into the shaft insertion groove and extends horizontally into the shaft insertion hole. The shaft insertion holes are distributed on the edge of the end cover.

[0004] Traditional motor end covers typically require complete disassembly during internal inspection or maintenance. This process is not only cumbersome and time-consuming, but also prone to damaging other motor components during disassembly and installation, affecting motor performance and lifespan. Furthermore, frequent disassembly can lead to decreased sealing performance and increase the risk of impurities entering the motor. To address these issues, a non-disassembly motor end cover is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose a non-removable motor end cover.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a non-removable motor end cover, comprising an end cover assembly, the end cover assembly including an end cover, a non-removable maintenance component fixedly installed on the top of the end cover assembly, an inspection port extending through the top of the end cover, and symmetrical notches on both sides of the inspection port, the non-removable maintenance component including a fixing plate, a sealing plate, a support rod, a rotating plate, a threaded rod, and a pressure block, the bottom of the fixing plate being welded to the top of the end cover, and two side plates symmetrically welded to both sides of the fixing plate, with sliding grooves on the inner sides of the two side plates, and two symmetrically fixed connections on both sides of the sealing plate. A slider, the top of the sealing plate has a pressure groove, and a sealing gasket is fixedly connected to the outer edge of the top of the sealing plate. The sealing plate is slidably connected to the groove through the sliders on both sides, and the bottom of the sealing plate is inserted into the inspection port. A telescopic rod is fixedly connected to the bottom of the rotating plate. One end of the rotating plate is fixedly connected to the top of the support rod, and the inner wall of the other end of the rotating plate is threadedly connected to the outer wall of the threaded rod. The bottom of the support rod is welded to the top of the end cap. The top of the pressure block is rotatably connected to the bottom of the threaded rod, and one top end of the pressure block is fixedly connected to the bottom end of the telescopic rod. The bottom end of the pressure block is inserted into the pressure groove.

[0007] Preferably, a pull rod is fixedly installed on the top of the sealing plate, and a pull ring is fixedly installed on the top of the rotating plate.

[0008] Preferably, the top end of the threaded rod is welded with a handle through the rotating plate.

[0009] Preferably, the top of the end cap has a ring array of multiple heat dissipation holes I, and the top of the fixing plate has a ring array of multiple heat dissipation holes II, and the number of the multiple heat dissipation holes I and II are the same and correspond to each other.

[0010] Preferably, a slot is provided on one side of the fixing plate, and a dustproof screen is inserted into the slot.

[0011] Preferably, mounting plates are symmetrically welded to both sides of the end cap.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting up an inspection port and a sealing plate, maintenance personnel can easily perform inspection or maintenance operations through the inspection port without disassembling the entire motor end cover, saving maintenance time and labor costs, greatly improving maintenance efficiency, avoiding damage to other parts of the motor during disassembly and installation, and preventing frequent disassembly that could lead to a decrease in sealing performance. At the same time, the sealing gasket is made of high-temperature resistant and corrosion-resistant materials, reducing the risk of impurities entering the motor. After the inspection port is closed, the pressure block presses down on the pressure groove and sealing plate to ensure that the sealing gasket fits tightly with the inspection port, improving the sealing effect. The operation is convenient and quick, making it easy for users to operate and ensuring the convenience and stability of opening and closing the inspection port.

[0014] 2. In this utility model, by setting heat dissipation hole one, heat dissipation hole two, and dust screen, heat dissipation hole one and heat dissipation hole two correspond to each other vertically, the structure is simple and the design is reasonable. Multiple heat dissipation holes ensure heat dissipation effect. At the same time, a double-layer dust screen is set between heat dissipation hole one and heat dissipation hole two to prevent dust and debris from entering the motor and ensure the safe use of the motor. The dust screen is also easy to disassemble and install, and easy to clean. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a non-removable motor end cover is provided for this utility model;

[0016] Figure 2 This utility model provides a structural schematic diagram of an end cover assembly for a non-removable motor end cover;

[0017] Figure 3 This utility model provides a structural diagram of a non-removable maintenance component for a motor end cover;

[0018] Figure 4 This utility model provides a structural diagram of a non-disassembly maintenance component for a non-disassembly motor end cover in its open state.

[0019] Figure 5 This utility model presents a structural schematic diagram of a sealing plate for a non-removable motor end cover.

[0020] Legend: 1. End cap assembly; 2. Non-disassembly maintenance assembly; 11. End cap; 12. Mounting plate; 13. Inspection port; 14. Notch; 15. Heat dissipation hole one; 21. Fixing plate; 22. Side plate; 23. Slide groove; 24. Sealing plate; 25. Support rod; 26. Rotating plate; 27. Pull ring; 28. Handle rod; 29. ​​Threaded rod; 210. Heat dissipation hole two; 211. Slot; 212. Dustproof screen; 213. Pull rod; 214. Pressure groove; 215. Pressure block; 216. Telescopic rod; 217. Slider; 218. Sealing gasket. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides a non-removable motor end cover, including an end cover assembly 1, which includes an end cover 11. A non-removable maintenance component 2 is fixedly installed on the top of the end cover assembly 1. An inspection port 13 is provided through the top of the end cover 11, and notches 14 are symmetrically provided on both sides of the inspection port 13. The non-removable maintenance component 2 includes a fixing plate 21, a sealing plate 24, a support rod 25, a rotating plate 26, a threaded rod 29, and a pressure block 215. The bottom of the fixing plate 21 is welded to the top of the end cover 11, and two side plates 22 are symmetrically welded to both sides of the fixing plate 21. Sliding grooves 23 are provided on the inner sides of the two side plates 22. Two sliders 217 are symmetrically fixedly connected to both sides of the sealing plate 24. A pressure groove 214 is provided on the top of the sealing plate 24, and a sealing element is fixedly connected to the outer edge of the top of the sealing plate 24. Washer 218 and sealing plate 24 are slidably connected to slide groove 23 via sliders 217 on both sides, and the bottom end of sealing plate 24 is inserted into inspection port 13. Telescopic rod 216 is fixedly connected to the bottom of rotating plate 26. One end of rotating plate 26 is fixedly connected to the top end of support rod 25, and the inner wall of the other end of rotating plate 26 is threadedly connected to the outer wall of threaded rod 29. The bottom end of support rod 25 is welded to the top end of end cover 11. The top end of pressure block 215 is rotatably connected to the bottom of threaded rod 29, and one top end of pressure block 215 is fixedly connected to the bottom end of telescopic rod 216. The bottom end of pressure block 215 is inserted into pressure groove 214. Pull rod 213 is fixedly installed on the top of sealing plate 24. Pull ring 27 is fixedly installed on the top of rotating plate 26. Handle 28 is welded through rotating plate 26 to the top end of threaded rod 29.

[0024] The specific settings and functions of this embodiment are described below: By setting up the inspection port 13 and the sealing plate 24, it is convenient for maintenance personnel to perform inspection or maintenance operations through the inspection port 13 without disassembling the entire motor end cover 11, which saves maintenance time and labor costs, greatly improves maintenance efficiency, avoids damage to other parts of the motor during disassembly and installation, and avoids frequent disassembly leading to a decrease in sealing performance.

[0025] Meanwhile, the sealing gasket 218 on the outer edge of the sealing plate 24 is made of high-temperature and corrosion-resistant material, which can effectively prevent dust, water vapor and other impurities from entering the motor, reduce the risk of impurities entering the motor, and ensure the sealing performance of the motor under various conditions. At the same time, after the inspection port 13 is closed, the pressure block 215 presses down the pressure groove 214 and the sealing plate 24 to ensure that the sealing gasket 218 fits tightly with the inspection port 13, improves the sealing effect, and makes the operation convenient and quick, making it easy for users to operate and ensuring the convenience and stability of opening and closing the inspection port 13.

[0026] Example 2: Figure 1 - Figure 3 As shown, the top of the end cap 11 has a ring array of multiple heat dissipation holes 15, and the top of the fixing plate 21 has a ring array of multiple heat dissipation holes 210. The number of heat dissipation holes 15 and heat dissipation holes 210 are the same and correspond to each other. A slot 211 is provided on one side of the fixing plate 21, and a dustproof screen 212 is inserted into the slot 211. Mounting plates 12 are symmetrically welded on both sides of the end cap 11.

[0027] The overall effect of this embodiment is that by setting heat dissipation hole 15, heat dissipation hole 210 and dust screen 212, heat dissipation hole 15 and heat dissipation hole 210 correspond to each other vertically, the structure is simple and the design is reasonable. Multiple heat dissipation holes ensure heat dissipation effect. At the same time, a double-layer dust screen 212 is installed between heat dissipation hole 15 and heat dissipation hole 210 to prevent dust and debris from entering the motor and ensure the safety of motor use. In addition, the dust screen 212 is easy to disassemble and install, and easy to clean.

[0028] The device's usage and working principle are as follows: The motor end cover consists of an end cover assembly 1 and a non-disassembly maintenance assembly 2. During use, the end cover 11 is installed on the motor via the side mounting plates 12 (the non-disassembly motor end cover 11 is made of high-strength, corrosion-resistant materials such as aluminum alloy and stainless steel, which possess excellent mechanical properties and corrosion resistance, adapting to various harsh working environments and ensuring the service life of the motor end cover 11). When internal maintenance of the motor is required, the operator simply holds the handle 28 and rotates it (the handle 28 drives the threaded rod 29 to rotate; the outer wall of the threaded rod 29 is threadedly connected to the inner wall of the rotating plate 26; the bottom end of the threaded rod 29 is rotatably connected to the top of the pressure block 215; both ends of the telescopic rod 216 are connected to the rotating plate 26 and the pressure block 215, and the telescopic rod 216 can be extended). The telescopic rod 216 can limit the pressure block 215, allowing it to move longitudinally and preventing it from rotating. Therefore, when the handle 28 and threaded rod 29 rotate, the threaded rod 29 drives the pressure block 215 upward away from the pressure groove 214. At this time, the operator pulls the pull rod 213 upward to pull the sealing plate 24 out of the inspection port 13, rotates the rotating plate 26, threaded rod 29 and pressure block 215 to one side, and then slides the sealing plate 24 along the slide groove 23 to one end of the side plate 22. This makes it convenient for maintenance personnel to perform maintenance or repair operations through the inspection port 13 without disassembling the entire motor end cover 11, saving maintenance time and labor costs, greatly improving maintenance efficiency, avoiding damage to other parts of the motor during disassembly and installation, and avoiding frequent disassembly that could lead to a decrease in sealing performance.

[0029] After maintenance is completed, slide the sealing plate 24 along the groove 23 to the top of the inspection port 13. The sliders 217 on both sides of the sealing plate 24 are locked on the notch 14. The sealing plate 24 and the sealing gasket 218 seal the inspection port 13. At this time, rotate the handle 28 and the threaded rod 29. The threaded rod 29 drives the pressure block 215 to move downward until the pressure block 215 presses the groove 214 and the sealing plate 24. The sealing plate 24 is locked at the inspection port 13. The sealing gasket 218 on the outer edge of the sealing plate 24 is made of high temperature and corrosion resistant material, which can effectively prevent dust, water vapor and other impurities from entering the motor. This reduces the risk of impurities entering the motor and ensures the sealing performance of the motor under various conditions. At the same time, after the inspection port 13 is closed, the pressure block 215 presses the groove 214 and the sealing plate 24 downward to ensure that the sealing gasket 218 is tightly fitted with the inspection port 13, improving the sealing effect. The operation is convenient and quick, making it easy for users to operate and ensuring the convenience and stability of opening and closing the inspection port 13.

[0030] By setting heat dissipation hole 15, heat dissipation hole 210 and dust screen 212, heat dissipation hole 15 and heat dissipation hole 210 correspond to each other vertically, and multiple heat dissipation holes ensure heat dissipation effect. At the same time, a double-layer dust screen 212 is installed between heat dissipation hole 15 and heat dissipation hole 210 to prevent dust and debris from entering the motor.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A non-removable motor end cover, comprising an end cover assembly (1), wherein the end cover assembly (1) includes an end cover (11), characterized in that: The top of the end cap assembly (1) is fixedly equipped with a non-disassembly maintenance component (2). The top of the end cap (11) has a through-hole (13), and the two sides of the through-hole (13) have symmetrical notches (14). The non-disassembly maintenance component (2) includes a fixing plate (21), a sealing plate (24), a support rod (25), a rotating plate (26), a threaded rod (29), and a pressure block (215). The bottom of the fixing plate (21) is welded to the top of the end cap (11), and two side plates (22) are symmetrically welded to the two sides of the fixing plate (21). The inner sides of the two side plates (22) have grooves (23). The two sides of the sealing plate (24) are symmetrically fixedly connected with two sliders (217). The top of the sealing plate (24) has a pressure groove (214), and the top of the sealing plate (217) has a pressure groove (214). 4) The top outer edge is fixedly connected with a sealing gasket (218). The sealing plate (24) is slidably connected to the slide groove (23) through the two side sliders (217). The bottom end of the sealing plate (24) is inserted into the inspection port (13). The bottom of the rotating plate (26) is fixedly connected with a telescopic rod (216). One end of the rotating plate (26) is fixedly connected to the top end of the support rod (25). The inner wall of the other end of the rotating plate (26) is threadedly connected to the outer wall of the threaded rod (29). The bottom end of the support rod (25) is welded to the top end of the end cover (11). The top end of the pressure block (215) is rotatably connected to the bottom of the threaded rod (29). The top end of the pressure block (215) is fixedly connected to the bottom end of the telescopic rod (216). The bottom end of the pressure block (215) is inserted into the pressure groove (214).

2. The non-removable motor end cover according to claim 1, characterized in that: A pull rod (213) is fixedly installed on the top of the sealing plate (24), and a pull ring (27) is fixedly installed on the top of the rotating plate (26).

3. The non-removable motor end cover according to claim 1, characterized in that: The top of the threaded rod (29) is welded to a handle (28) through the rotating plate (26).

4. The non-removable motor end cover according to claim 1, characterized in that: The top of the end cap (11) has a ring array of multiple heat dissipation holes (15) through it, and the top of the fixing plate (21) has a ring array of multiple heat dissipation holes (210) through it. The number of the multiple heat dissipation holes (15) and the multiple heat dissipation holes (210) are the same and correspond to each other.

5. The non-removable motor end cover according to claim 1, characterized in that: A slot (211) is provided on one side of the fixing plate (21), and a dustproof screen (212) is inserted into the slot (211).

6. The non-removable motor end cover according to claim 1, characterized in that: Mounting plates (12) are symmetrically welded to both sides of the end cap (11).

Citation Information

Patent Citations

  • Disassembly-free motor end cover

    CN220754497U