Brush motor convenient to disassemble, assemble and maintain

Abstract

The invention discloses a brush motor convenient to disassemble, assemble and maintain, and relates to the technical field of brush motors. The motor comprises a shell, a front cover is installed at one end of the shell, a rear cover is installed at the other end of the shell, and a stator assembly is arranged in the shell. The motor is provided with the front cover, the rear cover, the lock catch mechanism, the shell and the limiting assembly, connection between the front cover and the rear cover can be released by slightly stirring the lock catch mechanism in the groove, so that the front cover and the rear cover are quickly separated and taken down to be separated from the shell, and then the stator assembly, the rotating shaft and the rotor assembly can be sequentially pulled out. And then the connection between the shell and the shell is released by pulling the limiting assembly, so that the electric brush is pulled outwards to be taken out, all parts in the motor can be separately disassembled and are subjected to one-to-one replacement and maintenance, and the maintenance and repair processes are greatly simplified through the unique structural layout and the rapid connection mechanism.

Description

Technical Field

[0001] The present application relates to the technical field of brushed motors, and in particular to a brushed motor that is easy to disassemble, assemble and repair. Background Art

[0002] A brushed motor is a traditional DC motor characterized by fixed carbon brushes and a commutator inside the motor. These components enable the motor to be continuously powered while rotating, thereby generating continuous torque. Brushed motors have a simple structure and low cost, and are widely used in various power tools, toys, household appliances, and some industrial equipment.

[0003] In order to reduce size and improve efficiency, existing brushed motors usually adopt a highly integrated design scheme, such as integrating the stator core and the casing, and directly embedding the rotor shaft into the bearing hole. As a result, the design of the brushed motor is relatively compact and the internal structure is complex, resulting in cumbersome and time-consuming disassembly and assembly processes during maintenance or troubleshooting.

[0004] However, during daily use, once a part inside the brush motor, such as a brush, is damaged after long-term wear, at this time, since the internal components of the motor are highly integrated and all are integrated in design, it is often necessary to disassemble the motor as a whole and replace all internal components before it can be used again. This is not only time-consuming and labor-intensive, but also easily damages other intact components, making disassembly and assembly inconvenient, the maintenance cost is high, and the overall practicality of the motor is poor. For this reason, the present application provides a brush motor that is easy to disassemble, assemble and repair. Summary of the invention

[0005] The purpose of the present application is to solve the problem that once a part inside a brushed motor, such as a brush, is damaged after long-term wear, the motor often needs to be disassembled as a whole for replacement. The present application provides a brushed motor that is easy to disassemble and repair.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: The brushed motor which is easy to disassemble and repair comprises a shell, a front cover is installed at one end of the shell, a rear cover is installed at the other end of the shell, a stator assembly is arranged inside the shell, a rotating shaft is arranged inside the shell, a commutator is fixedly connected to the rotating shaft, two ends of the rotating shaft pass through the front cover and the rear cover, a rotor assembly is installed on the rotating shaft, one side of the front cover and the rear cover are fixedly connected with bearings, two bearings are respectively sleeved on the two ends of the rotating shaft, washers are symmetrically sleeved on the rotating shaft, and a snap ring is symmetrically sleeved on the rotating shaft, a shell is symmetrically and slidably arranged inside the shell, a spring 1 is fixedly connected inside the shell, a brush is slidably connected inside the shell, one end of the spring 1 is fixedly connected to one end of the brush, and the other end of the brush is fitted with the outer wall of the commutator, grooves are symmetrically opened on the outer wall of the shell, a locking mechanism is installed inside the groove, and limit components are installed on both sides of the shell.

[0007] By adopting the above technical solution, firstly, the locking mechanism inside the groove is gently pushed to release the connection between the front cover and the rear cover, so that the front cover and the rear cover can be quickly separated and removed to separate them from the shell, and then the stator assembly, the shaft and the rotor assembly can be pulled out in turn, and then the connection between the outer shell and the shell is released by pulling the limit assembly to pull the brush outward to take it out, so that each component inside the motor can be removed separately and replaced and repaired one by one. Through its unique structural layout and quick connection mechanism, the repair and maintenance process is greatly simplified, the repair time and cost of the motor are significantly reduced, the production efficiency and service quality are improved, and the flexibility of the internal structure of the motor is enhanced.

[0008] Furthermore, the locking mechanism includes a fixed plate fixedly connected to the inside of the groove, a screw rod is rotatably connected to the inside of the groove, a paddle is fixedly connected to one end of the screw rod, a moving block is threadedly connected to the screw rod, a connecting groove is opened on one side of the front cover and the rear cover, the shape and size of the connecting groove are consistent with one end of the moving block, and a clamping piece is symmetrically installed inside one end of the moving block.

[0009] By adopting the above technical solution, firstly, the paddle is gently pushed to drive the screw rod to rotate, which will cause the moving block to move on the screw rod, gradually away from the connecting groove, and release the limit clamping connection between the front cover and the rear cover.

[0010] Furthermore, both upper and lower ends of the moving block are fixedly connected with sliding blocks, and both upper and lower sides of the groove are provided with sliding grooves, and the sliding blocks are slidably connected inside the sliding grooves.

[0011] By adopting the above technical solution, through the guidance of the slider and the slide groove, the moving block can be moved smoothly according to the guidance of the slide groove, reducing the occurrence of deviation.

[0012] Furthermore, the clamping part includes two built-in grooves symmetrically opened inside one end of the moving block, the interior of the two built-in grooves is fixedly connected with a spring 2, the interior of the two built-in grooves is slidably connected with a clamping block, one end of the spring 2 is fixedly connected to one end of the clamping block, and limiting grooves are opened on both sides of the interior of the connecting grooves, the end of the clamping block away from the spring 2 is arc-shaped, and the shape and size of the limiting groove are consistent with the arc-shaped end of the clamping block.

[0013] By adopting the above technical solution, when the moving block moves, the limit groove and the arc-shaped end of the card block will be squeezed against each other, so that the card block and the limit groove are separated from each other. At this time, the limit connection of the front cover and the rear cover can be released, so that the front cover and the rear cover can be quickly separated and removed, and separated from the shell, so that the components inside the shell can be disassembled and repaired more conveniently and quickly.

[0014] Furthermore, the limit assembly includes a guide block fixedly connected to both sides of the shell, the guide block is slidably connected to a sliding column, a cavity is opened inside the sliding column, an extrusion piece is installed in the sliding column, the inner wall of the shell is symmetrically opened with extrusion grooves, and the inside of the extrusion groove is symmetrically opened with card grooves.

[0015] By adopting the above technical solution, first pull the sliding column upward to make it slide upward inside the guide block. At this time, the extrusion piece is disengaged from the slots on both sides inside the extrusion slot, and the connection between the sliding column and the extrusion slot can be released.

[0016] Furthermore, the extrusion member includes a fixed rod fixedly connected to the inside of the sliding column, an elastic clamp is rotatably connected to the fixed rod, both ends of the elastic clamp are fixedly connected to interference blocks, the bottom of the sliding column is symmetrically provided with through holes matching the interference blocks, and the shape and size of the card slot inside the extrusion groove are consistent with the interference block.

[0017] By adopting the above technical solution, as the sliding column is pulled, the elastic clamping plate will be driven to shrink, so that the resistance block is separated from the slots on both sides of the extrusion groove, and the connection between the sliding column and the extrusion groove can be released.

[0018] Furthermore, a temperature sensor is fixedly connected to the inner wall of the front cover, and the temperature sensor is electrically connected to an external controller.

[0019] By adopting the above technical solution, the working status of the motor can be monitored in real time through the temperature sensor. Once an abnormal signal is detected, an alarm can be sent to the central control system or mobile terminal through the wireless communication module to remind the staff to take timely action.

[0020] Furthermore, the housing is made of high-strength aluminum alloy, the rotating shaft is made of stainless steel, and the brush is made of a graphite-based composite material.

[0021] By adopting the above technical solution, the shell made of high-strength aluminum alloy can have good heat dissipation and corrosion resistance, the shaft made of stainless steel can ensure smooth and noiseless rotation, and the brush made of graphite-based composite material has excellent conductivity and wear resistance.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. The present application is provided with a front cover, a rear cover, a locking mechanism, a shell and a limit assembly. First, the locking mechanism inside the groove can be gently pushed to release the connection between the front cover and the rear cover, so as to quickly separate and remove the front cover and disengage them from the shell. Subsequently, the stator assembly, the rotating shaft and the rotor assembly can be pulled out in turn, and then the connection between the shell and the shell can be released by pulling the limit assembly, and the brush can be pulled out to take it out, so that each component inside the motor can be separately removed and replaced and repaired one by one. Through its unique structural layout and quick connection mechanism, the repair and maintenance process is greatly simplified, the repair time and cost of the motor are significantly reduced, the production efficiency and service quality are improved, and the flexibility of the internal structure of the motor is enhanced.

[0023] 2. The present application is provided with a locking mechanism and a card connector. First, gently push the paddle to make the moving block gradually move away from the connecting groove. While the moving block moves, the card connector will enter the interior of the built-in groove and separate from the limiting groove. At this time, the limiting connection of the front cover and the rear cover can be released, so that the front cover and the rear cover can be quickly separated and removed, so that they are detached from the shell, making it more convenient and quick to disassemble and repair the components inside the shell.

[0024] 3. In the present application, a limit position assembly is provided, and the sliding column is first pulled upward to slide upward inside the guide block. Since the elastic clamp has an elastic clamping force, the abutment block is disengaged from the card slots on both sides inside the extrusion slot. At this time, the connection between the sliding column and the extrusion slot can be released, so that the brush can be taken out by pulling the outer casing, which greatly simplifies the repair and maintenance process, and there is no need to completely replace the entire motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0026] Figure 2 It is a cross-sectional view of the main body of the device in this application.

[0027] Figure 3 It is a schematic diagram of the connection structure of the device body in this application.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping component in this application.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the limiting component in this application.

[0030] Figure 6 It is a cross-sectional view of the limit assembly in this application.

[0031] Description of reference numerals: 1. Shell; 2. Front cover; 3. Rear cover; 4. Stator assembly; 5. Rotating shaft; 6. Rotor assembly; 7. Bearing; 8. Washer; 9. Snap ring; 10. Shell; 11. Spring 1; 12. Brush; 13. Groove; 14. Fixed plate; 15. Screw rod; 16. Pick; 17. Moving block; 18. Slider; 19. Slide groove; 20. Connecting groove; 21. Built-in groove; 22. Spring 2; 23. Block; 24. Limiting groove; 25. Guide block; 26. Sliding column; 27. Fixed rod; 28. Elastic splint; 29. ​​Resistance block; 30. Extrusion groove; 31. Temperature sensor; 51. Commutator. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 —6 Provide further details of this application.

[0033] The embodiments of the present application disclose a brushed motor that is easy to disassemble, assemble and repair.

[0034] Reference Figure 1 and Figure 2 , a brushed motor which is convenient for disassembly, assembly and maintenance, comprises a shell 1, a front cover 2 is installed at one end of the shell 1, a rear cover 3 is installed at the other end of the shell 1, a stator assembly 4 is arranged inside the shell 1, a rotating shaft 5 is arranged inside the shell 1, a commutator 51 is fixedly connected to the rotating shaft 5, both ends of the rotating shaft 5 pass through the front cover 2 and the rear cover 3, a rotor assembly 6 is installed on the rotating shaft 5, bearings 7 are fixedly connected to one side of the front cover 2 and the rear cover 3, two bearings 7 are respectively sleeved on both ends of the rotating shaft 5, washers 8 are symmetrically sleeved on the rotating shaft 5, and a snap ring 9 is symmetrically sleeved on the rotating shaft 5, a shell 10 is symmetrically slidably arranged inside the shell 1, a spring 11 is fixedly connected inside the shell 10, a brush 12 is slidably connected inside the shell 10, one end of the spring 11 is fixedly connected to one end of the brush 12, and the other end of the brush 12 is fitted with the outer wall of the commutator 51, grooves 13 are symmetrically opened on the outer wall of the shell 1, a locking mechanism is installed inside the groove 13, and limited position components are installed on both sides of the shell 10.

[0035] In daily use, when it is necessary to repair or replace the internal parts of the motor, first gently move the locking mechanism inside the groove 13 on the outer wall of the shell 1. By moving the locking mechanism, the locking mechanism can release the connection between the front cover 2 and the rear cover 3, so that the front cover 2 and the rear cover 3 can be quickly separated and removed to separate them from the shell 1. Then the stator assembly 4 can be removed, and then the shaft 5 can be pulled out with a special tool to drive the rotor assembly 6 to be pulled out from the shell 1. Then, the connection between the shell 10 and the shell 1 is released by pulling the limit assembly to pull the brush 12 outward to take it out, so that each component inside the motor can be separated and removed for one-to-one replacement and maintenance. Then replace the corresponding parts as needed, and finally perform the reverse operations according to the above steps to gradually reset each part, then close the front cover 2 and the rear cover 3, and quickly lock them through the locking assembly to restore the normal operation of the motor. During the operation, care should be taken to avoid hard pulling to avoid unnecessary damage. Through its unique structural layout and quick connection mechanism, it greatly simplifies the repair and maintenance process, significantly reduces the repair time and cost of the motor, improves production efficiency and service quality, enhances the flexibility of the internal structure of the motor, improves the stability and reliability of the system, realizes efficient disassembly and assembly and convenient maintenance of the motor, and greatly reduces the cost of subsequent services.

[0036] Reference Figure 2 , Figure 3 and Figure 4 The locking mechanism includes a fixed plate 14 fixedly connected to the inside of the groove 13, a screw rod 15 is rotatably connected to the inside of the groove 13, a paddle 16 is fixedly connected to one end of the screw rod 15, a moving block 17 is threadedly connected to the screw rod 15, a connecting groove 20 is provided on one side of the front cover 2 and the rear cover 3, the shape and size of the connecting groove 20 are consistent with one end of the moving block 17, a clamping piece is symmetrically installed in one end of the moving block 17, and a slider 18 is fixedly connected to the upper and lower ends of the moving block 17, and a slide groove 19 is provided on the upper and lower sides of the groove 13, and the slider 18 is slidably connected to the inside of the slide groove 19; Secondly, the clamping part includes two built-in grooves 21 symmetrically opened inside one end of the moving block 17, and the inside of the two built-in grooves 21 is fixedly connected with a spring 22, and the inside of the two built-in grooves 21 is slidably connected with a clamping block 23, one end of the spring 22 is fixedly connected to one end of the clamping block 23, and limiting grooves 24 are opened on both sides of the inside of the connecting groove 20, and the end of the clamping block 23 away from the spring 22 is arc-shaped, and the shape and size of the limiting groove 24 are consistent with the arc-shaped end of the clamping block 23.

[0037] When in use, first gently push the paddle 16 to drive the screw rod 15 to rotate, and as the screw rod 15 gradually rotates, the moving block 17 will move on the screw rod 15, wherein the sliding block 18 and the sliding groove 19 are guided to enable the moving block 17 to move smoothly according to the guidance of the sliding groove 19, thereby reducing the occurrence of deviation, and as the moving block 17 gradually moves, the moving block 17 will gradually move away from the connecting groove 20, and while the moving block 17 moves, the limiting groove 24 and the arc-shaped end of the card block 23 will squeeze each other, so that the card block 23 will enter the interior of the built-in groove 21 after being pulled, and when the card block 23 enters the interior of the built-in groove 21, it will separate from the limiting groove 24, and the limiting connection of the front cover 2 and the rear cover 3 can be released at this time, so that the front cover 2 and the rear cover 3 can be quickly separated and removed, so that they are separated from the shell 1, and the components inside the shell 1 can be replaced and repaired more conveniently and quickly; Secondly, when the corresponding parts are replaced as needed, the front cover 2 and the rear cover 3 can be respectively pressed against one side of the shell 1 again, and then the paddle 16 is rotated in the opposite direction to drive the screw rod 15 to rotate in the opposite direction, so that the moving block 17 moves in the opposite direction from the inside of the groove 13 to the inside of the connecting groove 20. When the moving block 17 enters the inside of the connecting groove 20, the inner wall of the connecting groove 20 will squeeze the block 23 into the inside of the built-in groove 21. When the moving block 17 completely enters the inside of the connecting groove 20, the built-in groove 21 and the limiting groove 24 are on the same horizontal line. According to the rebound of the spring 22, the block 23 will be driven to enter the inside of the limiting groove 24. Through the mutual cooperation of the block 23 and the limiting groove 24, the front cover 2 and the rear cover 3 can be quickly connected and fixed to the shell 1 again, which greatly improves the disassembly and assembly time and efficiency of the motor and makes the maintenance process more convenient.

[0038] Reference Figure 2 , Figure 5 and Figure 6 The limit assembly includes a guide block 25 fixedly connected to both sides of the shell 10, a sliding column 26 is slidably connected inside the guide block 25, a cavity is opened inside the sliding column 26, an extrusion piece is installed inside the sliding column 26, an inner wall of the shell 1 is symmetrically opened with an extrusion groove 30, and a card slot is symmetrically opened inside the extrusion groove 30. The extrusion piece includes a fixed rod 27 fixedly connected to the inside of the sliding column 26, an elastic clamping plate 28 is rotatably connected to the fixed rod 27, and both ends of the elastic clamping plate 28 are fixedly connected to a resistance block 29, and the bottom of the sliding column 26 is symmetrically opened with through holes matching the resistance block 29, and the shape and size of the card slot inside the extrusion groove 30 are consistent with the resistance block 29.

[0039] When in use, first pull the sliding post 26 upward to make it slide upward inside the guide block 25. At this time, the sliding post 26 will drive the internal elastic clamping plate 28 and the resistance block 29 to move together. Because the elastic clamping plate 28 has an elastic clamping force, the elastic clamping plate 28 will shrink as the sliding post 26 is pulled, so that the elastic clamping plate 28 drives the resistance block 29 to enter the interior of the sliding post 26, thereby disengaging the resistance block 29 from the slots on both sides of the extrusion groove 30. At this time, the connection between the sliding post 26 and the extrusion groove 30 can be released, so that the brush 12 can be driven to be removed by pulling the housing 10, which greatly simplifies the repair and maintenance process, and there is no need to replace the entire motor.

[0040] Reference Figure 1 and Figure 3 A temperature sensor 31 is fixedly connected to the inner wall of the front cover 2, and the temperature sensor 31 is electrically connected to an external controller.

[0041] When in use, the working state of the motor is monitored in real time through the temperature sensor 31. Once an abnormal signal is detected, an alarm can be sent to the central control system or mobile terminal through the wireless communication module to remind the staff to take timely action to prevent potential risks.

[0042] Reference Figure 1 and Figure 2 The housing 1 is made of high-strength aluminum alloy, the shaft 5 is made of stainless steel, and the brush 12 is made of a graphite-based composite material.

[0043] When in use, the housing 1 made of high-strength aluminum alloy can have good heat dissipation and corrosion resistance, the rotating shaft 5 made of stainless steel can ensure smooth and noiseless rotation, and the brush 12 made of graphite-based composite material has excellent conductivity and wear resistance.

[0044] The implementation principle of the brushed motor that is easy to disassemble and repair in this embodiment is as follows: in daily use, when it is necessary to repair or replace the internal parts of the motor, first gently turn the paddle 16 to drive the screw rod 15 to rotate, and as the screw rod 15 gradually rotates, the moving block 17 will move on the screw rod 15, wherein the moving block 17 can be guided by the slider 18 and the slide groove 19 to move smoothly according to the guidance of the slide groove 19, reducing the occurrence of deviation, and as the moving block 17 gradually moves, the moving block 17 can be moved smoothly. The moving block 17 gradually moves away from the connecting groove 20, and when the moving block 17 moves, the limiting groove 24 and the arc-shaped end of the card block 23 are squeezed against each other, so that the card block 23 enters the inner part of the built-in groove 21 after being pulled, and when the card block 23 enters the inner part of the built-in groove 21, it will separate from the limiting groove 24. At this time, the limiting connection between the front cover 2 and the rear cover 3 can be released, so that the front cover 2 and the rear cover 3 can be quickly separated and removed, so that they are separated from the shell 1, and the front cover 2 and the rear cover 3 can be more conveniently and quickly removed. The components inside the housing 1 can be replaced and repaired, and then the stator assembly 4 can be removed, and then the rotating shaft 5 can be pulled out with a special tool, driving the rotor assembly 6 to be pulled out from the housing 1, and then the sliding column 26 can be pulled upward to slide upward inside the guide block 25. At this time, the sliding column 26 will drive the internal elastic clamping plate 28 and the resistance block 29 to move together, and because the elastic clamping plate 28 has an elastic clamping force, the elastic clamping plate 28 will be driven to shrink as the sliding column 26 is pulled, so that the elastic clamping plate 28 drives the resistance block 29 to enter the interior of the sliding column 26, so that the resistance block 29 is disengaged from the slots on both sides of the extrusion groove 30. At this time, the connection between the sliding column 26 and the extrusion groove 30 can be released, so that the brush 12 can be taken out by pulling the housing 10, which greatly simplifies the repair and maintenance process. There is no need to replace the entire motor as a whole, so that each component inside the motor can be removed separately, and a one-to-one replacement and repair can be performed, and then the corresponding components can be replaced according to needs; Finally, the above steps can be reversed to gradually reset each component, and then the front cover 2 and the rear cover 3 can be respectively pressed against one side of the shell 1, and then the paddle 16 is rotated in the opposite direction to drive the screw rod 15 to rotate in the opposite direction, so that the moving block 17 moves from the inside of the groove 13 to the inside of the connecting groove 20 in the opposite direction. When the moving block 17 enters the inside of the connecting groove 20, the inner wall of the connecting groove 20 will squeeze the block 23 into the inside of the built-in groove 21. When the moving block 17 completely enters the inside of the connecting groove 20, the built-in groove 21 and the limiting groove 24 are on the same horizontal line. According to the rebound of the spring 22, the block 23 will be driven to enter the inside of the limiting groove 24. Through the cooperation between the clamp block 23 and the limit groove 24, the front cover 2 and the rear cover 3 can be quickly connected and fixed to the housing 1 to restore the normal operation of the motor. During the operation, care should be taken to avoid hard pulling and dragging to avoid unnecessary damage. Through its unique structural layout and quick connection mechanism, the repair and maintenance process is greatly simplified, the repair time and cost of the motor are significantly reduced, the production efficiency and service quality are improved, the flexibility of the internal structure of the motor is enhanced, the stability and reliability of the system are improved, the efficient disassembly and assembly and convenient maintenance of the motor are achieved, and the cost of subsequent services is greatly reduced. The working status of the motor is monitored in real time through the temperature sensor 31. Once an abnormal signal is detected, an alarm can be sent to the central control system or mobile terminal through the wireless communication module to remind the staff to take timely action to prevent potential risks. The housing 1 made of high-strength aluminum alloy can have good heat dissipation and corrosion resistance. The shaft 5 made of stainless steel can ensure smooth and noiseless rotation. The brush 12 made of graphite-based composite materials has excellent conductivity and wear resistance.

Claims

1. A brushed motor that is easy to disassemble, assemble and maintain, comprising a housing (1), characterized in that: A front cover (2) is mounted on one end of the housing (1), and a rear cover (3) is mounted on the other end of the housing (1). A stator assembly (4) is arranged inside the housing (1). A rotating shaft (5) is arranged inside the housing (1). A commutator (51) is fixedly connected to the rotating shaft (5). Both ends of the rotating shaft (5) pass through the front cover (2) and the rear cover (3). A rotor assembly (6) is mounted on the rotating shaft (5). One side of each of the front cover (2) and the rear cover (3) is fixedly connected to a bearing (7). Two bearings (7) are respectively sleeved on the two ends of the rotating shaft (5). The rotating shaft (5) is symmetrically sleeved with a commutator (51). A washer (8) is provided, a snap ring (9) is symmetrically sleeved on the rotating shaft (5), a housing (10) is symmetrically slidably provided inside the housing (1), a spring (11) is fixedly connected inside the housing (10), a brush (12) is slidably connected inside the housing (10), one end of the spring (11) is fixedly connected to one end of the brush (12), the other end of the brush (12) is fitted to the outer wall of the commutator (51), the outer wall of the housing (1) is symmetrically provided with grooves (13), a locking mechanism is installed inside the grooves (13), and limit assemblies are installed on both sides of the housing (10).

2. The brushed motor that is easy to disassemble and repair according to claim 1 is characterized in that: The locking mechanism comprises a fixing plate (14) fixedly connected to the inside of the groove (13); a screw rod (15) is rotatably connected to the inside of the groove (13); a paddle (16) is fixedly connected to one end of the screw rod (15); a moving block (17) is threadedly connected to the screw rod (15); a connecting groove (20) is formed on one side of the front cover (2) and the rear cover (3); the shape and size of the connecting groove (20) are consistent with one end of the moving block (17); and a clamping piece is symmetrically installed in one end of the moving block (17).

3. The brushed motor that is easy to disassemble and repair according to claim 2 is characterized in that: The upper and lower ends of the moving block (17) are fixedly connected to sliding blocks (18), and the upper and lower sides of the groove (13) are provided with sliding grooves (19), and the sliding blocks (18) are slidably connected inside the sliding grooves (19).

4. The brushed motor that is easy to disassemble and repair according to claim 2 is characterized in that: The clamping member comprises two built-in grooves (21) symmetrically arranged inside one end of the moving block (17), the inside of each of the two built-in grooves (21) being fixedly connected with a second spring (22), the inside of each of the two built-in grooves (21) being slidably connected with a clamping block (23), one end of the second spring (22) being fixedly connected with one end of the clamping block (23), limiting grooves (24) being arranged on both sides inside the connecting groove (20), one end of the clamping block (23) away from the second spring (22) being arc-shaped, and the shape and size of the limiting groove (24) being consistent with the arc-shaped end of the clamping block (23).

5. The brushed motor that is easy to disassemble and repair according to claim 1 is characterized in that: The limit assembly comprises guide blocks (25) fixedly connected to both sides of the housing (10), a sliding column (26) being slidably connected inside the guide blocks (25), a cavity being provided inside the sliding column (26), an extrusion piece being installed inside the sliding column (26), an extrusion groove (30) being symmetrically provided on the inner wall of the housing (1), and a clamping groove being symmetrically provided inside the extrusion groove (30).

6. The brushed motor that is easy to disassemble and repair according to claim 5 is characterized in that: The extrusion member comprises a fixing rod (27) fixedly connected to the inside of the sliding column (26); an elastic clamping plate (28) is rotatably connected to the fixing rod (27); both ends of the elastic clamping plate (28) are fixedly connected to a resistance block (29); a through hole matching the resistance block (29) is symmetrically provided at the bottom of the sliding column (26); and the shape and size of the internal slot of the extrusion groove (30) are consistent with those of the resistance block (29).

7. The brushed motor that is easy to disassemble and repair according to claim 1 is characterized in that: A temperature sensor (31) is fixedly connected to the inner wall of the front cover (2), and the temperature sensor (31) is electrically connected to an external controller.

8. The brushed motor that is easy to disassemble and repair according to claim 1 is characterized in that: The housing (1) is made of a high-strength aluminum alloy, the rotating shaft (5) is made of stainless steel, and the brush (12) is made of a graphite-based composite material.

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