Electric vehicle motor auxiliary device
By designing an automated auxiliary device for electric vehicle motors, the automatic ejection of the motor core and the automatic rust removal of the inner side of the magnets are realized, solving the problems of labor-intensive and inefficient manual operation in the existing technology and improving the cleaning efficiency of electric vehicle motors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING JUNAN NETWORK TECH CO LTD
- Filing Date
- 2025-12-08
- Publication Date
- 2026-04-28
AI Technical Summary
The current method of cleaning electric vehicle motors requires manual labor to push out the inner core and use a steel brush to remove rust, which is labor-intensive and inefficient.
An auxiliary device for electric vehicle motors was designed, comprising an ejection mechanism and a processing mechanism. The device automatically ejects the inner core of the motor and removes rust from the inner side of the magnets using a rotating brush. The automated operation is achieved using components such as cylinders, connecting rods, and rotating disks.
It enables automatic ejection of the motor core and automatic rust removal of the inner side of the magnet, saving manpower, improving the cleaning efficiency of electric vehicle motors, and preventing the motor core from falling off and being damaged, as well as tire slippage.
Smart Images

Figure CN121939720A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of electric vehicle motor cleaning technology, and in particular to an auxiliary device for electric vehicle motors. Background Technology
[0002] As the core component of electric vehicles, the motor's performance directly affects the vehicle's power output and range. Therefore, keeping the motor clean and maintained is crucial.
[0003] The existing method for cleaning electric vehicle motors involves pushing the motor core out of the magnet and then using a steel brush to remove the rust from the magnet. However, since the motor core needs to be pushed out manually and the rust needs to be brushed off manually, it is labor-intensive and inefficient.
[0004] Therefore, an electric vehicle motor auxiliary device has been developed that can automatically push out the inner core of the motor and automatically remove rust from the inside of the motor magnets, saving manpower and improving the cleaning efficiency of electric vehicle motors. Summary of the Invention
[0005] To overcome the shortcomings of existing electric vehicle motor cleaning methods, which require manual removal of the motor core and manual brushing to remove rust from the magnets, resulting in high labor costs and low cleaning efficiency, this invention provides an electric vehicle motor auxiliary device that can automatically remove the motor core and automatically remove rust from the inside of the motor magnets, saving labor and improving the cleaning efficiency of electric vehicle motors.
[0006] The technical solution is as follows: An auxiliary device for an electric vehicle motor includes a mounting frame, a movable frame, a limiting block, a first spring, a first motor, a double-acting screw, an ejection mechanism, and a processing mechanism. The movable frame is slidably connected to both the left and right sides of the mounting frame. The limiting block is slidably connected to the upper side of the movable frame. The limiting block is connected to the movable frame at both the front and rear ends by a first spring. The first motor is connected to the upper left front part of the mounting frame. The output shaft of the first motor is connected to the double-acting screw, which is rotatably connected to the mounting frame. The front part of the movable frame is threadedly connected to the double-acting screw. The mounting frame is provided with an ejection mechanism that can eject the motor. The ejection mechanism is provided with a processing mechanism that can remove rust from the motor.
[0007] Furthermore, the ejection mechanism includes a fixed frame, a cylinder, a connecting rod, and a buffer head. The fixed frame is connected to the upper rear side of the mounting frame, and the cylinder is connected to the upper part of the fixed frame. The connecting rod is connected to the telescopic end of the cylinder, and the buffer head is connected to the lower outer side of the connecting rod. When the cylinder on the fixed frame is activated, the telescopic end of the cylinder extends, pushing the connecting rod downward, so that the buffer head contacts the motor shaft, squeezing the motor shaft downward, and thus ejecting the inner core of the motor.
[0008] Furthermore, the processing mechanism includes a support ring, a rotating disk, a transmission assembly, a second motor, rotating brushes, and a first torsion spring. The support ring is connected to the middle of the connecting rod, and the rotating disk is rotatably connected to the support ring. The second motor is connected to the upper part of the connecting rod, and a transmission assembly is connected between the rotating disk and the output shaft of the second motor. Multiple rotating brushes are rotatably connected to the outer side of the rotating disk, and each rotating brush is connected to the rotating disk by a first torsion spring. When the second motor is started, the rotating disk is rotated through the transmission assembly, causing the rotating brushes to open outward under the action of centrifugal force and contact the inner side of the motor magnet, and rotate and move inside the motor magnet to remove rust from the inner side of the motor magnet.
[0009] Furthermore, the transmission assembly includes a gear ring and a gear. The gear ring is connected to the upper side of the center of the rotating disk, and the gear is connected to the output shaft of the second motor. The gear meshes with the gear ring.
[0010] Furthermore, it also includes a support mechanism, which includes a guide sleeve, a lifting frame, a connecting arm, and a second spring. The guide sleeve is connected to the lower front side of the fixed frame, and the lifting frame is slidably connected to the guide sleeve. The connecting arm is connected to the upper rear side of the cylinder extension end. The connecting arm and the lifting frame are in a pressing fit. The second spring is connected between the lifting frame and the guide sleeve. When the cylinder extension end extends, it drives the connecting arm to move downward, causing the connecting arm to press the lifting frame downward. The second spring is stretched, and the inner core of the motor is pushed out and falls onto the lifting frame, where it is buffered by the force of the second spring.
[0011] Furthermore, it also includes an anti-slip mechanism, which includes a support member, a rotating block, an anti-slip block, and a second torsion spring. The upper front and rear sides of the mobile frame are connected to the support member, and the rotating block is rotatably connected to the support member. The anti-slip block is connected to the rotating block, and the second torsion spring is connected between the rotating block and the support member. After the tire is placed on the mobile frame, the rotating block is released and restored by the second torsion spring, so that the rotating blocks move closer to each other and the anti-slip block contacts the outer side of the tire.
[0012] Furthermore, it also includes a shaft alignment mechanism, which includes a connecting block, a rotating arm, a third torsion spring, and a lifting rod. Multiple connecting blocks are connected to the lower part of the connecting rod, and a rotating arm is rotatably connected between any two adjacent connecting blocks. A third torsion spring is connected between each connecting block and the connected rotating arm. A lifting rod is slidably connected inside the connecting rod. The lifting rod passes through a buffer head, and the rotating arms are pressed against the lifting rod. When the buffer head contacts the motor shaft, the motor shaft presses the lifting rod upward, causing the lifting rod to press the rotating arm to rotate and retract, thus limiting the movement of the motor shaft.
[0013] Furthermore, it also includes a prying mechanism, which includes a support block, a prying plate, and a handle. The upper side of each limiting block is connected to a support block, and the support block is rotatably connected to a prying plate. The upper part of each prying plate is connected to a handle. By rotating the prying plate with the handle, the prying plate is locked in the gap between the upper housing of the motor and the motor, and then the prying plate is rotated upward.
[0014] The beneficial effects are as follows: 1. The present invention uses a buffer head to squeeze the motor shaft downward, causing the inner core of the motor to be pushed out. Then, by rotating the rotating disk, the rotating brush opens outward under the action of centrifugal force to remove rust from the inner side of the motor magnet. This achieves the effect of automatically pushing out the inner core of the motor and automatically removing rust from the inner side of the motor magnet, saving manpower and improving the cleaning efficiency of electric vehicle motors.
[0015] 2. In this invention, as the cylinder extends, the connecting arm moves downward, causing the connecting arm to press the lifting frame downward. After the motor core is pushed out, it falls onto the lifting frame, thus supporting the motor core and preventing it from falling and being damaged.
[0016] 3. In this invention, after the tire is placed on the moving frame, the rotating block is released and restored by the second torsion spring, so that the rotating blocks move closer to each other, and the anti-slip block contacts the outer side of the tire, thus achieving the effect of clamping the tire and preventing the tire from slipping.
[0017] 4. When the buffer head contacts the motor shaft, the motor shaft squeezes the lifting rod upward, causing the lifting rod to squeeze the rotating arm to rotate and retract, thus limiting the motor shaft. This achieves the effect of keeping the motor shaft and the buffer head aligned and preventing the motor shaft from shifting.
[0018] 5. This invention uses a handle to rotate a pry plate, which is then locked in the gap between the outer casing and the motor on the upper side. The pry plate is then rotated upwards, which allows the outer casing to be pried open and easily removed from the motor. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0020] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.
[0021] Figure 3 This is a three-dimensional structural diagram of the ejection mechanism of the present invention.
[0022] Figure 4 This is a three-dimensional structural diagram of the processing mechanism of the present invention.
[0023] Figure 5 This is a cross-sectional view of the processing mechanism of the present invention.
[0024] Figure 6 This is a three-dimensional structural diagram of the support mechanism of the present invention.
[0025] Figure 7 This is a three-dimensional structural diagram of the anti-slip mechanism of the present invention.
[0026] Figure 8 This is a three-dimensional structural diagram of the shaft alignment mechanism of the present invention.
[0027] Figure 9 This is a three-dimensional structural diagram of the shaft alignment mechanism of the present invention.
[0028] Figure 10 This is a three-dimensional structural diagram of the prying mechanism of the present invention.
[0029] Component names and numbers in the diagram: 1_Mounting bracket, 2_Moving bracket, 3_Limiting block, 4_First spring, 5_First motor, 6_Double-acting lead screw, 7_Ejection mechanism, 71_Fixed bracket, 72_Cylinder, 73_Connecting rod, 74_Buffer head, 8_Processing mechanism, 81_Support ring, 82_Rotating disk, 83_Transmission assembly, 84_Second motor, 85_Rotating brush, 86_First torsion spring, 9_Support mechanism, 91_Guide sleeve, 92_Lifting frame, 93_Connecting arm, 94_Second spring, 10_Anti-slip mechanism, 101_Support component, 102_Rotating block, 103_Anti-slip block, 104_Second torsion spring, 11_Shaft alignment mechanism, 111_Connecting block, 112_Rotating arm, 113_Third torsion spring, 114_Lifting rod, 12_Prying mechanism, 121_Support block, 122_Prying plate, 123_Handle. Detailed Implementation
[0030] The technical solution of the present invention will be further described below with reference to the accompanying drawings.
[0031] An auxiliary device for an electric vehicle motor, such as Figure 1 and Figure 2 As shown, the device includes a mounting frame 1, a movable frame 2, a limiting block 3, a first spring 4, a first motor 5, a bidirectional lead screw 6, an ejection mechanism 7, and a processing mechanism 8. The movable frame 2 is slidably connected to both the left and right sides of the mounting frame 1. The limiting block 3 is slidably connected to the upper side of the movable frame 2. The first spring 4 is connected to both the front and rear sides of the limiting block 3 and the connected movable frame 2. The first motor 5 is connected to the upper left front part of the mounting frame 1. The bidirectional lead screw 6 is connected to the output shaft of the first motor 5. The bidirectional lead screw 6 is rotatably connected to the mounting frame 1. The front part of the movable frame 2 is threadedly connected to the bidirectional lead screw 6. The mounting frame 1 is equipped with an ejection mechanism 7, and the ejection mechanism 7 is equipped with a processing mechanism 8.
[0032] like Figure 1 and Figure 3As shown, the ejection mechanism 7 includes a fixed frame 71, a cylinder 72, a connecting rod 73, and a buffer head 74. The fixed frame 71 is connected to the upper rear side of the mounting frame 1. The cylinder 72 is connected to the upper part of the fixed frame 71. The connecting rod 73 is connected to the telescopic end of the cylinder 72. The buffer head 74 is connected to the lower outer side of the connecting rod 73.
[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the processing mechanism 8 includes a support ring 81, a rotating disk 82, a transmission assembly 83, a second motor 84, rotating brushes 85, and a first torsion spring 86. The support ring 81 is connected to the middle of the connecting rod 73, and the rotating disk 82 is rotatably connected to the support ring 81. The second motor 84 is connected to the upper part of the connecting rod 73. The transmission assembly 83 is connected between the rotating disk 82 and the output shaft of the second motor 84. The transmission assembly 83 includes a gear ring and a gear. The gear ring is connected to the upper side of the middle of the rotating disk 82, and the gear is connected to the output shaft of the second motor 84. The gear meshes with the gear ring. Three rotating brushes 85 are rotatably connected to the outer side of the rotating disk 82, and each rotating brush 85 is connected to the rotating disk 82 by a first torsion spring 86.
[0034] When using this invention, first place the mounting bracket 1 in the electric vehicle motor disassembly area, remove the screws on the motor, and then, according to the size of the electric vehicle tire, start the first motor 5 to drive the bidirectional lead screw 6 to rotate, causing the movable brackets 2 to move closer or further apart, adjusting the distance between the movable brackets 2. After adjustment, pull the limiting block 3 upward, stretching the first spring 4, and then place the electric vehicle tire between the limiting block 3 and the movable bracket 2. After placement, release the limiting block 3, causing the first spring 4 to return, so that the limiting block 3 fixes the tire on the movable bracket 2. Then remove the outer casing on the upper side of the motor, and then start the cylinder 72 on the fixing bracket 71, causing the telescopic end of the cylinder 72 to extend, pushing the connecting rod 73 downward, so that the buffer head 74 contacts the motor shaft, squeezing the motor shaft to move downward, so that the electric... After the inner core of the motor is ejected, the connecting rod 73 continues to move downward, so that the rotating disk 82 is located inside the motor magnet. Then, the second motor 84 is started. Through the meshing motion of the gear and gear ring in the transmission assembly 83, the rotating disk 82 is rotated, causing the rotating brush 85 to open outward under the action of centrifugal force and contact the inside of the motor magnet. It rotates and moves inside the motor magnet to remove rust. At this time, the first torsion spring 86 is deformed. After the rust removal is completed, the second motor 84 is turned off, the rotating disk 82 stops rotating, the first torsion spring 86 returns to its original state, and the rotating brush 85 is reset. This achieves the function of automatically ejecting the inner core of the motor and automatically removing rust from the inside of the motor magnet, saving manpower and improving the cleaning efficiency of electric vehicle motors.
[0035] like Figure 1 and Figure 6As shown, it also includes a support mechanism 9, which includes a guide sleeve 91, a lifting frame 92, a connecting arm 93, and a second spring 94. The guide sleeve 91 is connected to the lower front side of the fixed frame 71, and the lifting frame 92 is slidably connected to the guide sleeve 91. The connecting arm 93 is connected to the upper rear side of the telescopic end of the cylinder 72. The connecting arm 93 is pressed and engaged with the lifting frame 92, and the second spring 94 is connected between the lifting frame 92 and the guide sleeve 91.
[0036] Using the support mechanism 9 of this device, the inner core of the motor can be supported. When the extension end of the cylinder 72 extends, it drives the connecting arm 93 to move downward, so that the connecting arm 93 presses the lifting frame 92 downward. The second spring 94 is stretched, and the inner core of the motor is pushed out and falls onto the lifting frame 92. The force of the second spring 94 is used to buffer the movement, thereby supporting the inner core of the motor and preventing it from falling and being damaged.
[0037] like Figure 1 and Figure 7 As shown, it also includes an anti-slip mechanism 10, which includes a support member 101, a rotating block 102, an anti-slip block 103, and a second torsion spring 104. The upper front and rear sides of the movable frame 2 are connected to the support member 101, and the rotating block 102 is rotatably connected to the support member 101. The anti-slip block 103 is connected to the rotating block 102, and the second torsion spring 104 is connected between the rotating block 102 and the support member 101.
[0038] Using the anti-slip mechanism 10 of this device, the tire can be prevented from slipping. When the tire is placed on the movable frame 2, the rotating blocks 102 rotate away from each other, and the second torsion spring 104 deforms. After the tire is placed on the movable frame 2, the rotating blocks 102 are released and restored by the second torsion spring 104, so that the rotating blocks 102 move closer to each other, and the anti-slip block 103 contacts the outer side of the tire, thereby clamping the tire and preventing it from slipping.
[0039] like Figure 1 , Figure 8 and Figure 9 As shown, it also includes a shaft alignment mechanism 11, which includes a connecting block 111, a rotating arm 112, a third torsion spring 113, and a lifting rod 114. The lower part of the connecting rod 73 is connected to six connecting blocks 111. A rotating arm 112 is rotatably connected between any two adjacent connecting blocks 111. A third torsion spring 113 is connected between each connecting block 111 and the connected rotating arm 112. The lifting rod 114 is slidably connected inside the connecting rod 73. The lifting rod 114 passes through the buffer head 74. The rotating arms 112 are all in a pressing fit with the lifting rod 114.
[0040] Using the alignment mechanism 11 of this device, the motor shaft and the buffer head 74 can be kept aligned. When the buffer head 74 contacts the motor shaft, the motor shaft presses the lifting rod 114 to move upward, so that the lifting rod 114 presses the rotating arm 112 to rotate and retract, thus limiting the motor shaft. The third torsion spring 113 deforms. When the motor shaft is disengaged from the lifting rod 114, it is restored by the third torsion spring 113, which drives the rotating arm 112 to reset. This achieves the function of keeping the motor shaft and the buffer head 74 aligned and preventing the motor shaft from shifting.
[0041] like Figure 1 and Figure 10 As shown, it also includes a prying mechanism 12, which includes a support block 121, a prying plate 122 and a handle 123. The upper side of the limiting block 3 is connected to the support block 121, and the support block 121 is rotatably connected to the prying plate 122. The upper part of the prying plate 122 is connected to the handle 123.
[0042] Using the prying mechanism 12 of this device, the outer casing on the upper side of the motor can be pried. When removing the outer casing on the upper side of the motor, the prying plate 122 is rotated by the handle 123, so that the prying plate 122 is locked in the gap between the outer casing on the upper side of the motor and the motor. Then, the prying plate 122 is rotated upward, thereby enabling the outer casing to be pried and making it easy to remove the outer casing from the motor.
[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. An auxiliary device for an electric vehicle motor, characterized in that, It includes a mounting frame (1), a movable frame (2), a limiting block (3), a first spring (4), a first motor (5), a two-way screw (6), an ejection mechanism (7), and a processing mechanism (8). The movable frame (2) is slidably connected to both the left and right sides of the mounting frame (1). The limiting block (3) is slidably connected to the upper side of the movable frame (2). The first spring (4) is connected to both the front and rear sides of the limiting block (3) and the movable frame (2). The first motor (5) is connected to the upper left front side of the mounting frame (1). The two-way screw (6) is connected to the output shaft of the first motor (5). The two-way screw (6) is rotatably connected to the mounting frame (1). The front of the movable frame (2) is threadedly connected to the two-way screw (6). The mounting frame (1) is provided with an ejection mechanism (7) that can eject the motor. The ejection mechanism (7) is provided with a processing mechanism (8) that can remove rust from the motor.
2. The electric vehicle motor auxiliary device according to claim 1, characterized in that, The ejection mechanism (7) includes a fixed frame (71), a cylinder (72), a connecting rod (73), and a buffer head (74). The fixed frame (71) is connected to the upper rear side of the mounting frame (1). The cylinder (72) is connected to the upper part of the fixed frame (71). The connecting rod (73) is connected to the telescopic end of the cylinder (72). The buffer head (74) is connected to the lower outer side of the connecting rod (73). The cylinder (72) on the fixed frame (71) is activated, so that the telescopic end of the cylinder (72) extends out, pushes the connecting rod (73) to move downward, so that the buffer head (74) contacts the motor shaft, squeezes the motor shaft to move downward, and pushes the inner core of the motor out.
3. The electric vehicle motor auxiliary device according to claim 2, characterized in that, The processing mechanism (8) includes a support ring (81), a rotating disk (82), a transmission assembly (83), a second motor (84), a rotating brush (85), and a first torsion spring (86). The support ring (81) is connected to the middle of the connecting rod (73). The rotating disk (82) is rotatably connected to the support ring (81). The second motor (84) is connected to the upper part of the connecting rod (73). The transmission assembly (83) is connected between the rotating disk (82) and the output shaft of the second motor (84). Multiple rotating brushes (85) are rotatably connected to the outside of the rotating disk (82). The rotating brushes (85) are all connected to the rotating disk (82) by the first torsion spring (86). When the second motor (84) is started, the rotating disk (82) is rotated through the transmission assembly (83), so that the rotating brushes (85) open outward under the action of centrifugal force and contact the inner side of the motor magnet, and rotate and move inside the motor magnet to remove rust from the inner side of the motor magnet.
4. The electric vehicle motor auxiliary device according to claim 3, characterized in that, The transmission assembly (83) includes a gear ring and a gear. The gear ring is connected to the upper side of the center of the rotating disk (82). The gear is connected to the output shaft of the second motor (84). The gear meshes with the gear ring.
5. An electric vehicle motor auxiliary device according to claim 3, characterized in that, It also includes a support mechanism (9), which includes a guide sleeve (91), a lifting frame (92), a connecting arm (93), and a second spring (94). The guide sleeve (91) is connected to the lower front side of the fixed frame (71), and the lifting frame (92) is slidably connected to the guide sleeve (91). The connecting arm (93) is connected to the upper rear side of the telescopic end of the cylinder (72). The connecting arm (93) and the lifting frame (92) are pressed together. The second spring (94) is connected between the lifting frame (92) and the guide sleeve (91). When the telescopic end of the cylinder (72) extends, it drives the connecting arm (93) to move downward, so that the connecting arm (93) presses the lifting frame (92) downward. The second spring (94) is stretched, and the inner core of the motor is pushed out and falls onto the lifting frame (92). The second spring (94) acts as a buffer.
6. The electric vehicle motor auxiliary device according to claim 5, characterized in that, It also includes an anti-slip mechanism (10), which includes a support member (101), a rotating block (102), an anti-slip block (103), and a second torsion spring (104). The upper front and rear sides of the mobile frame (2) are connected to the support member (101), and the rotating block (102) is rotatably connected to the support member (101). The anti-slip block (103) is connected to the rotating block (102). The second torsion spring (104) is connected between the rotating block (102) and the connected support member (101). After the tire is placed on the mobile frame (2), the rotating block (102) is released and restored by the second torsion spring (104), so that the rotating blocks (102) move closer to each other and the anti-slip block (103) contacts the outside of the tire.
7. An electric vehicle motor auxiliary device according to claim 6, characterized in that, It also includes a shaft-aligning mechanism (11), which includes a connecting block (111), a rotating arm (112), a third torsion spring (113), and a lifting rod (114). The lower part of the connecting rod (73) is connected to multiple connecting blocks (111). A rotating arm (112) is rotatably connected between two adjacent connecting blocks (111). A third torsion spring (113) is connected between each connecting block (111) and the connected rotating arm (112). The lifting rod (114) is slidably connected inside the connecting rod (73). The lifting rod (114) passes through the buffer head (74). The rotating arm (112) is pressed against the lifting rod (114). When the buffer head (74) contacts the motor shaft, the motor shaft presses the lifting rod (114) to move upward, so that the lifting rod (114) presses the rotating arm (112) to rotate and retract, thus limiting the motor shaft.
8. An electric vehicle motor auxiliary device according to claim 7, characterized in that, It also includes a prying mechanism (12), which includes a support block (121), a prying plate (122) and a handle (123). The upper side of the limiting block (3) is connected to the support block (121), and the support block (121) is rotatably connected to the prying plate (122). The upper part of the prying plate (122) is connected to the handle (123). By rotating the prying plate (122) through the handle (123), the prying plate (122) is locked in the gap between the outer shell and the motor on the upper side of the motor, and then the prying plate (122) is rotated upward.