Rotor maintenance device and method for motor

Abstract

The embodiment of the invention discloses a motor rotor maintenance device and method.The motor rotor maintenance device comprises a workbench, a fixing part and a detection assembly.By means of the motor rotor maintenance device provided by the embodiment of the invention, in the maintenance process of a motor, the motor rotor can be maintained conveniently; the rotor magnetic system of the motor and the magnetic system declination angle of the Hall angle sensor can be adjusted, so that the magnetic system declination angle of the motor after maintenance is the same as the magnetic system declination angle of the motor before maintenance, and a vehicle can smoothly identify and control the motor after maintenance. According to the technical scheme, when the vehicle motor breaks down, the fault can be eliminated in a maintenance mode, the maintenance scheme that the whole motor is replaced in the traditional technology is replaced, cost is reduced, technical monopoly in the vehicle maintenance process is broken through, and the experience of a vehicle user is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of vehicle motor maintenance, and in particular to a motor rotor maintenance device and method. Background Art

[0002] In the vehicle, the motor plays the role of adjusting torque, speed and driving direction. The motor can ensure the stability and efficiency of the vehicle power output within the specified power range by accurately adjusting the torque. This helps to improve the driver's driving experience and energy efficiency performance. In traditional technology, for most vehicles, especially foreign-owned vehicles, when the motor is damaged, it is often impossible to repair it. Most of them can only directly replace the new motor, which increases the cost of vehicle maintenance. The inventor found that the biggest difficulty in the motor maintenance process is that the motor after maintenance cannot be recognized or misidentified by the motor control system (MCS) of the vehicle, resulting in the inability to accurately adjust. This is because during the commutation process of the motor, the motor control system (MCS) needs to drive the rotor magnetic system of the motor and the magnetic system deflection of the Hall angle sensor. During the maintenance process, the magnetic system deflection angle changes, resulting in the inability to accurately identify the vehicle. Based on this, it is necessary to develop a motor rotor maintenance device and method to repair the motor of the vehicle, ensure the adaptability of the vehicle, and reduce the maintenance cost of the vehicle. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. This part of the invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present invention provides a rotor maintenance device for a motor.

[0006] A second aspect of the present invention provides a method for repairing a rotor of a motor.

[0007] In view of this, according to a first aspect of an embodiment of the present application, a rotor maintenance device for a motor is provided, wherein the rotor comprises a rotating shaft, a bearing sleeved on the rotating shaft, a rotor magnetic system, and a Hall angle sensor arranged at an end of the rotating shaft, and the rotor maintenance device for the motor comprises:

[0008] A workbench, wherein an X-axis slide rail is formed on the workbench;

[0009] A fixing part, the fixing part is arranged on the workbench, and the fixing part is used to fix the rotor to be repaired;

[0010] A detection component, the detection component includes a moving frame, a first detection part and a second detection part, the moving frame is slidably connected to the X-axis slide rail, a Z-axis slide rail is formed on the moving frame, the first detection part is slidably connected to the Z-axis slide rail, the first detection part is used to detect the deflection angle of the rotor magnetic system, the second detection part is slidably connected to the Z-axis slide rail, and the second detection part is used to detect the deflection angle of the magnetic system of the Hall angle sensor.

[0011] In a feasible implementation manner, the fixing portion includes:

[0012] a first fixing portion and a second fixing portion, wherein the first fixing portion and the second fixing portion are both arranged on the workbench;

[0013] Wherein, the first fixing part comprises: a first fixing seat, a first fixing platform and a first locking member, the first fixing seat is fixedly connected to the workbench, the first fixing platform is rotatably connected to the first fixing seat, a pulley fixing part is formed on the first fixing platform, and the first locking member is used to lock the first fixing platform;

[0014] Wherein, the second fixing part includes: a second fixing seat, a second fixing platform and a second locking member, the second fixing seat is fixedly connected to the workbench, the second fixing platform is rotatably connected to the second fixing seat, a gear wheel fixing part is formed on the second fixing platform, and the second locking member is used to lock the second fixing platform.

[0015] In a feasible implementation manner, the first fixing portion further includes a bushing, the bushing is used to be sleeved on the pulley of the rotating shaft, and the first fixing platform is used to fix the bushing.

[0016] In a feasible implementation manner, the first locking member includes:

[0017] The pin is used to pass through the first base and connect to the second base.

[0018] In a feasible implementation manner, the fixing portion further includes: a fine-tuning unit, the fine-tuning unit being connected to the first fixing platform and the second fixing platform and being used to drive the first fixing platform and the second fixing platform to rotate; wherein the fine-tuning unit includes:

[0019] A first screwing portion and a first screw, wherein the first screwing portion is arranged at an end of the first screw, and the first screw passes through the first fixing seat and is connected to the first fixing platform;

[0020] A second screwing portion and a second lead screw, wherein the second screwing portion is arranged at an end portion of the second lead screw, and the second lead screw passes through the second fixing seat and is connected to the second fixing platform.

[0021] In a feasible implementation manner, the rotor maintenance device of the motor further includes: an adjustment seat, the adjustment seat is slidably connected to the X-axis slide rail, and a Y-axis slide rail is formed in the adjustment seat;

[0022] Wherein, the movable frame is slidably connected to the Y-axis slide rail.

[0023] In a feasible implementation, the second detection portion is arranged on the top of the first detection portion, the first detection portion is formed with an overlap portion on a side facing the workbench, and the second detection portion is formed with a positioning groove on a side facing the workbench.

[0024] In a feasible implementation manner, the rotor maintenance device of the motor further includes: an adjustment component, the adjustment component is arranged in the first detection part, the adjustment component is used to rotate the Hall angle sensor, and the adjustment component includes:

[0025] An adjusting member, wherein the adjusting member is conical in shape, an opening end of the adjusting member is arranged toward the workbench, and an inner wall of the adjusting member is a rough surface;

[0026] A screwing handle, wherein the screwing handle passes through the housing of the first detection part and is connected to the adjusting member;

[0027] A gasket is used for being sleeved on the Hall angle sensor.

[0028] In a feasible implementation manner, the rotor maintenance device of the motor further includes:

[0029] A magnetic shielding member is detachably connected to the movable frame and is used for being arranged between the first detection part and the second detection part.

[0030] According to a second aspect of an embodiment of the present application, a motor rotor repair method is provided, which is applied to a motor rotor repair device as described in any of the above technical solutions. The motor rotor repair method includes:

[0031] Fixing one end of the motor away from the Hall angle sensor to the workbench through the fixing part;

[0032] Control the detection component to move relative to the fixing part, obtain a first magnetic system deflection angle of the rotor magnetic system of the rotor through the first detection part, and obtain a second magnetic system deflection angle of the Hall angle sensor through the second detection part;

[0033] Disassembling the Hall angle sensor, replacing the bearing or the rotor magnetic system, and assembling a new Hall angle sensor on the rotating shaft to obtain a repaired rotor;

[0034] The repaired rotor is placed on the fixing part, and the angle of the repaired rotor relative to the workbench is adjusted so that the magnetic system deflection angle of the rotor magnetic system of the repaired rotor is equal to the first magnetic system deflection angle, and the angle of the new Hall angle sensor is adjusted so that the magnetic system deflection angle of the Hall angle sensor is equal to the second magnetic system deflection angle;

[0035] Fixed Hall angle sensor.

[0036] Compared with the prior art, the present invention has at least the following beneficial effects:

[0037] The motor rotor repair device provided in the embodiment of the present application is used to repair the motor of a vehicle. The motor includes a rotating shaft, a bearing sleeved on the rotating shaft, a rotor magnetic system, and a Hall angle sensor arranged at the end of the rotating shaft. The end of the rotating shaft facing away from the Hall angle sensor is not an output end. During the motor repair process, the bearing can only be disassembled through the Hall angle sensor end. The Hall angle sensor will inevitably be damaged during the bearing disassembly process. Therefore, when the rotor repair is completed and the rotor and a new Hall angle sensor are reassembled, the magnetic system deflection angle of the motor of the repaired vehicle will change, which will cause the vehicle to be unable to accurately and control the operation of the repaired motor.

[0038] The rotor repair device of the motor provided in the embodiment of the present application includes a workbench, a fixing part and a detection component. Based on this, during use, the end of the motor facing away from the Hall angle sensor is first fixed on the workbench through the fixing part; the detection component is controlled to move relative to the fixing part, and the first magnetic system deflection angle of the rotor magnetic system of the rotor is obtained through the first detection part, and the second magnetic system deflection angle of the Hall angle sensor is obtained through the second detection part; the Hall angle sensor is disassembled, the bearing or the rotor magnetic system is replaced, and a new Hall angle sensor is assembled on the rotating shaft to obtain the repaired rotor; the repaired rotor is set on the fixing part, and the angle of the repaired rotor relative to the workbench is adjusted so that the magnetic system deflection angle of the rotor magnetic system of the repaired rotor is equal to the first magnetic system deflection angle, and the angle of the new Hall angle sensor is adjusted so that the magnetic system deflection angle of the Hall angle sensor is equal to the second magnetic system deflection angle; the Hall angle sensor is fixed. Based on this, the motor rotor repair device provided by the embodiment of the present application can adjust the magnetic system deflection angle of the motor rotor magnetic system and the Hall angle sensor during the motor repair process, so that the magnetic system deflection angle of the motor after the repair is the same as the magnetic system deflection angle of the motor before the repair, and the vehicle can successfully identify and control the motor after the repair. When a vehicle motor fails, the fault can be eliminated by repair, replacing the traditional maintenance solution of replacing the entire motor, reducing costs, breaking the technical monopoly in the vehicle maintenance process, and improving the experience of vehicle users.

[0039] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0041] Figure 1 A schematic structural diagram of a rotor maintenance device for a motor according to an embodiment of the present application;

[0042] Figure 2 A schematic structural diagram of a rotor maintenance device for a motor according to an embodiment of the present application from another angle;

[0043] Figure 3 A schematic structural diagram of a rotor maintenance device for a motor according to an embodiment of the present application from another angle;

[0044] Figure 4 A schematic structural diagram of a rotor maintenance device for a motor according to another embodiment of the present application;

[0045] Figure 5 A schematic flowchart of the steps of a method for repairing a rotor of a motor according to an embodiment of the present application.

[0046] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the component names is as follows:

[0047] 110 working table, 120 fixing part, 130 detection component, 140 fine adjustment unit, 150 adjustment seat, 160 adjustment component;

[0048] 111X axis slide rail;

[0049] 121 first fixing portion, 122 second fixing portion, 1211 first fixing seat, 1212 first fixing platform, 1213 first locking member, 1221 second fixing seat, 1222 second fixing platform, 1223 second locking member;

[0050] 131 moving frame, 132 first detection unit, 133 second detection unit, 134 Z-axis slide rail;

[0051] 161 adjusting member, 162 screwing handle, 163 washer. DETAILED DESCRIPTION

[0052] In the following description, a large number of specific details are given to provide a more thorough understanding of the technical solutions provided by the present invention. However, it is obvious to those skilled in the art that the technical solutions provided by the present invention can be implemented without one or more of these details.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, integral bodies, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0054] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the concept of these exemplary embodiments to those of ordinary skill in the art.

[0055] like Figures 1 to 4 As shown, according to the first aspect of the embodiment of the present application, a rotor maintenance device for a motor is proposed, the rotor comprising a rotating shaft, a bearing sleeved on the rotating shaft, a rotor magnetic system, and a Hall angle sensor arranged at the end of the rotating shaft, the rotor maintenance device for the motor comprising: a workbench 110, an X-axis slide rail 111 is formed on the workbench 110; a fixing part 120, the fixing part 120 is arranged on the workbench 110, and the fixing part 120 is used to fix the rotor to be repaired; a detection component 130, the detection component 130 comprises a moving frame 131, a first detection part 132 and a second detection part 133, the moving frame 131 is slidably connected to the X-axis slide rail 111, a Z-axis slide rail 134 is formed on the moving frame 131, the first detection part 132 is slidably connected to the Z-axis slide rail 134, the first detection part 132 is used to detect the deflection angle of the rotor magnetic system, the second detection part 133 is slidably connected to the Z-axis slide rail 134, and the second detection part 133 is used to detect the deflection angle of the magnetic system of the Hall angle sensor.

[0056] The motor rotor repair device provided in the embodiment of the present application is used to repair the motor of a vehicle. The motor includes a rotating shaft, a bearing sleeved on the rotating shaft, a rotor magnetic system, and a Hall angle sensor arranged at the end of the rotating shaft. The end of the rotating shaft facing away from the Hall angle sensor is not an output end. During the motor repair process, the bearing can only be disassembled through the Hall angle sensor end. The Hall angle sensor will inevitably be damaged during the bearing disassembly process. Therefore, when the rotor repair is completed and the rotor and a new Hall angle sensor are reassembled, the magnetic system deflection angle of the motor of the repaired vehicle will change, which will cause the vehicle to be unable to accurately and control the operation of the repaired motor.

[0057] The rotor repair device of the motor provided in the embodiment of the present application includes a workbench 110, a fixing part 120 and a detection component 130. Based on this, during use, the end of the motor facing away from the Hall angle sensor is first fixed on the workbench 110 through the fixing part 120; the detection component 130 is controlled to move relative to the fixing part 120, and the first magnetic system deflection angle of the rotor magnetic system of the rotor is obtained through the first detection part 132, and the second magnetic system deflection angle of the Hall angle sensor is obtained through the second detection part 133; the Hall angle sensor is disassembled, the bearing or the rotor magnetic system is replaced, and a new Hall angle sensor is assembled on the shaft to obtain a repaired rotor; the repaired rotor is set on the fixing part 120, and the angle of the repaired rotor relative to the workbench 110 is adjusted so that the magnetic system deflection angle of the rotor magnetic system of the repaired rotor is equal to the first magnetic system deflection angle, and the angle of the new Hall angle sensor is adjusted so that the magnetic system deflection angle of the Hall angle sensor is equal to the second magnetic system deflection angle; the Hall angle sensor is fixed. Based on this, the motor rotor repair device provided by the embodiment of the present application can adjust the magnetic system deflection angle of the motor rotor magnetic system and the Hall angle sensor during the motor repair process, so that the magnetic system deflection angle of the motor after the repair is the same as the magnetic system deflection angle of the motor before the repair, and the vehicle can successfully identify and control the motor after the repair. When a vehicle motor fails, the fault can be eliminated by repair, replacing the traditional maintenance solution of replacing the entire motor, reducing costs, breaking the technical monopoly in the vehicle maintenance process, and improving the experience of vehicle users.

[0058] It can be understood that by setting an X-axis slide rail 111 on the workbench 110 and setting a Z-axis slide rail 134 on the movable frame 131 slidably connected to the X-axis slide rail 111, the positions of the first detection part 132 and the second detection part 133 can be adjusted on the X-axis and the Z-axis, so that the first detection part 132 can be close to the rotor magnetic system, and the second detection part 133 can be close to the Hall angle sensor, so that the angle of the rotor magnetic system and the angle of the magnetic system of the Hall angle sensor can be determined more accurately.

[0059] like Figures 1 to 4 As shown, in a feasible embodiment, the fixing part 120 includes: a first fixing part 121 and a second fixing part 122, and the first fixing part 121 and the second fixing part 122 are both arranged on the workbench 110; wherein, the first fixing part 121 includes: a first fixing seat 1211, a first fixing platform 1212 and a first locking member 1213, the first fixing seat 1211 is fixedly connected to the workbench 110, the first fixing platform 1212 is rotatably connected to the first fixing seat 1211, a pulley fixing part 120 is formed on the first fixing platform 1212, and the first locking member 1213 is used to lock the first fixing platform 1212.

[0060] In this technical solution, a specific style of the fixing part 120 is further provided. The fixing part 120 may include a first fixing part 121, and the first fixing part 121 may include a first fixing seat 1211, a first fixing platform 1212 and a first locking member 1213. A pulley fixing part 120 is formed on the first fixing platform 1212. Based on this, during use, the motor with a pulley at the output end can be fixed by the first fixing platform 1212 on the first fixing part 121, so that the output shaft of the motor is in a vertical or approximately vertical state, which is convenient for the first detection part 132 and the second detection part 133 to detect the magnetic system deflection angle.

[0061] It can be understood that, through the setting of the first fixing seat 1211, the fixation of the first fixing platform 1212 is more reliable, and the first fixing platform 1212 can rotate relative to the first fixing seat 1211. When the motor maintenance is completed and the Hall angle sensor is installed, the magnetic system angle of the rotor magnetic system can be adjusted by the first fixing platform 1212, and then the first fixing platform 1212 is locked by the first locking member 1213. After that, the setting angle of the Hall angle sensor is adjusted, so that the magnetic system deflection angle of the motor before maintenance can be equal to the magnetic system deflection angle of the motor after maintenance, so that the motor maintenance accuracy is high and can be recognized by the vehicle control system.

[0062] like Figures 1 to 4 As shown, in a feasible embodiment, the fixing part 120 includes: a first fixing part 121 and a second fixing part 122, and the first fixing part 121 and the second fixing part 122 are both arranged on the workbench 110; wherein, the second fixing part 122 includes: a second fixing seat 1221, a second fixing platform 1222 and a second locking member 1223, the second fixing seat 1221 is fixedly connected to the workbench 110, the second fixing platform 1222 is rotatably connected to the second fixing seat 1221, a toothed wheel fixing part 120 is formed on the second fixing platform 1222, and the second locking member 1223 is used to lock the second fixing platform 1222.

[0063] In this technical solution, a specific style of the fixing part 120 is further provided. The fixing part 120 may include a second fixing part 122, and the second fixing part 122 may include a second fixing seat 1221, a second fixing platform 1222 and a second locking member 1223. A pulley fixing part 120 is formed on the second fixing platform 1222. Based on this, during use, the motor with a toothed wheel at the output end can be fixed by the second fixing platform 1222 on the second fixing part 122, so that the output shaft of the motor is in a vertical or approximately vertical state, which is convenient for the first detection part 132 and the second detection part 133 to detect the magnetic system deflection angle.

[0064] It can be understood that, through the setting of the second fixing seat 1221, the fixation of the second fixing platform 1222 is more reliable, and the second fixing platform 1222 can rotate relative to the second fixing seat 1221. When the motor maintenance is completed and the Hall angle sensor is installed, the magnetic system angle of the rotor magnetic system can be adjusted by the second fixing platform 1222, and then the second fixing platform 1222 is locked by the second locking member 1223. After that, the setting angle of the Hall angle sensor is adjusted, so that the magnetic system deflection angle of the motor before maintenance can be equal to the magnetic system deflection angle of the motor after maintenance, so that the motor maintenance accuracy is high and can be recognized by the vehicle control system.

[0065] It can be understood that the arrangement of the first fixing portion 121 and the second fixing portion 122 can meet the needs of fixing most motors on the market, and the motor rotor repair device can be adapted to the repair of different types of motors.

[0066] In a feasible implementation manner, the first fixing portion 121 further includes a bushing, which is used to be sleeved on the pulley of the rotating shaft, and the first fixing platform 1212 is used to fix the bushing.

[0067] In this technical solution, the first fixing part 121 for fixing the pulley motor may also include a bushing. This arrangement is based on the consideration that the diameters of the pulleys on the output shafts of different types of pulley motors may be different. Therefore, the first fixing part 121 may be equipped with a plurality of bushings of different specifications. During use, the bushing may be sleeved on the pulley, and then the pulley motor may be fixed by the first fixing part 121. This can make the fixation of the pulley motor more reliable, and can enable the first fixing part 121 to fix pulley motors of different specifications, thereby increasing the applicability of the motor rotor maintenance device.

[0068] like Figures 1 to 4 As shown, in a feasible embodiment, the first locking member 1213 includes: a pin, the first fixed platform 1212 includes a first seat body and a second seat body, the first seat body and the second seat body are enclosed to form a pulley fixing portion 120, and the pin is used to pass through the first seat body and connect to the second seat body.

[0069] In this technical solution, a style of a first locking member 1213 is further provided, and the first fixed platform 1212 may include a first seat body and a second seat body, and then a pin is passed through the first seat body to connect to the second seat body, so that the first fixed platform 1212 can be locked to avoid unexpected rotation of the motor after the motor is fixed.

[0070] like Figures 1 to 4As shown, in a feasible embodiment, the fixing part 120 also includes: a fine-tuning unit 140, the fine-tuning unit 140 is connected to the first fixed platform 1212 and the second fixed platform 1222, and is used to drive the first fixed platform 1212 and the second fixed platform 1222 to rotate; wherein the fine-tuning unit 140 includes: a first screwing part and a first lead screw, the first screwing part is arranged at the end of the first lead screw, and the first lead screw passes through the first fixed seat 1211 and is connected to the first fixed platform 1212; a second screwing part and a second lead screw, the second screwing part is arranged at the end of the second lead screw, and the second lead screw passes through the second fixed seat 1221 and is connected to the second fixed platform 1222.

[0071] In this technical solution, the fixing part 120 may further include a fine-tuning unit 140, and the fine-tuning unit 140 may include a first screwing part and a first lead screw, the first lead screw being connected to the first fixed platform 1212, and the first screwing part can be used to drive the first lead screw to rotate. Based on this, after the pulley motor is repaired, the pulley motor can be set on the first fixed platform 1212, and then the first screwing part is screwed to drive the first fixed platform 1212 to rotate, and then the rotor magnetic system is detected by the first detection part 132, so that the angle of the rotor magnetic system can be adjusted so that the angle of the rotor magnetic system is equal to the angle before the motor is repaired, and the rotation amplitude of the first fixed platform 1212 can be controlled by controlling the pitch of the first lead screw, which can improve the angle adjustment accuracy of the rotor magnetic system of the motor.

[0072] In this technical solution, the fixing part 120 may further include a fine-tuning unit 140, and the fine-tuning unit 140 may include a second screwing part and a second lead screw, and the second lead screw is connected to the second fixed platform 1222, and the second screwing part can be used to drive the second lead screw to rotate. Based on this, after the gear wheel motor is repaired, the gear wheel motor can be set on the second fixed platform 1222, and then the second screwing part is screwed to drive the second fixed platform 1222 to rotate, and then the rotor magnetic system is detected by the second detection part 133, so that the angle of the rotor magnetic system can be adjusted so that the angle of the rotor magnetic system is equal to the angle before the motor is repaired, and the rotation amplitude of the second fixed platform 1222 can be controlled by controlling the pitch of the second lead screw, which can improve the angle adjustment accuracy of the rotor magnetic system of the motor.

[0073] like Figures 1 to 4 As shown, in a feasible embodiment, the rotor maintenance device of the motor also includes: an adjustment seat 150, the adjustment seat 150 is slidably connected to the X-axis slide rail 111, and a Y-axis slide rail is formed in the adjustment seat 150; wherein the movable frame 131 is slidably connected to the Y-axis slide rail.

[0074] In this technical solution, the rotor maintenance device of the motor may further include an adjustment seat 150, and the movable frame 131 is connected to the X-axis slide rail 111 through the adjustment seat 150. A Y-axis slide rail is formed on the adjustment seat 150, so that the positions of the first detection part 132 and the second detection part 133 can be adjusted in three dimensions, so that the first detection part 132 can be close to the rotor magnetic system, and the second detection part 133 can be close to the Hall angle sensor, so that the angle of deflection of the rotor magnetic system and the angle of deflection of the magnetic system of the Hall angle sensor can be determined more accurately.

[0075] In a feasible implementation, the second detection portion 133 is arranged on the top of the first detection portion 132 , the first detection portion 132 has an overlapped portion on one side facing the workbench 110 , and the second detection portion 133 has a positioning groove on one side facing the workbench 110 .

[0076] In this technical solution, the styles of the first detection part 132 and the second detection part 133 are further provided. The first detection part 132 is provided with an overlapped part on the side facing the workbench 110. This arrangement facilitates the first detection part 132 to detect the deflection angle of the rotor magnetic system. The second detection part 133 is provided with a positioning groove on the side facing the workbench 110. The positioning groove can cover the Hall angle sensor, thereby improving the detection accuracy of the magnetic system deflection angle of the Hall angle sensor.

[0077] like Figure 4 As shown, in a feasible embodiment, the rotor maintenance device of the motor also includes: an adjusting component 160, the adjusting component 160 is arranged in the first detection part 132, the adjusting component 160 is used to rotate the Hall angle sensor, and the adjusting component 160 includes: an adjusting member 161, the adjusting member 161 is conical, the open end of the adjusting member 161 is arranged toward the workbench 110, and the inner wall of the adjusting member 161 is a rough surface; a screwing handle 162, the screwing handle 162 passes through the shell of the first detection part 132 and is connected to the adjusting member 161; a washer 163, the washer 163 is used to be mounted on the Hall angle sensor.

[0078] In this technical solution, the rotor maintenance device of the motor can also include an adjustment component 160, an adjustment member 161 and a screwing handle 162. Based on this, when maintaining the repaired motor, the Hall angle sensor can be first set on the rotating shaft, and then a gasket 163 is sleeved on the outside of the Hall angle sensor. The screwing handle 162 is screwed so that the conical adjustment member 161 abuts against the gasket 163. By continuously rotating the screwing handle 162, the setting angle of the Hall angle sensor can be adjusted so that the magnetic system deflection angle of the motor after maintenance is the same as the magnetic system deflection angle of the motor before maintenance.

[0079] In a feasible implementation manner, the motor rotor maintenance device further includes: a magnetic shielding member, which is detachably connected to the movable frame 131 and is used to be arranged between the first detection portion 132 and the second detection portion 133 .

[0080] In this technical solution, the rotor maintenance device of the motor may further include a magnetic shielding member, which is arranged between the first detection part 132 and the second detection part 133, so as to avoid the mutual influence of the magnetic systems between the rotor magnetic system and the Hall angle sensor, thereby making the angle detection of the magnetic system deflection more accurate.

[0081] like Figure 5 As shown, according to the second aspect of the embodiment of the present application, a motor rotor maintenance method is proposed, which is applied to a motor rotor maintenance device as in any of the above technical solutions. The motor rotor maintenance method includes:

[0082] Step 201: fix one end of the motor away from the Hall angle sensor on a workbench through a fixing part;

[0083] Step 202: Control the detection component to move relative to the fixed part, obtain a first magnetic system deflection angle of the rotor magnetic system of the rotor through the first detection part, and obtain a second magnetic system deflection angle of the Hall angle sensor through the second detection part;

[0084] Step 203: dismantle the Hall angle sensor, replace the bearing or the rotor magnetic system, and assemble a new Hall angle sensor onto the rotating shaft to obtain a repaired rotor;

[0085] Step 204: placing the repaired rotor on the fixing portion, adjusting the angle of the repaired rotor relative to the workbench so that the magnetic system deflection angle of the rotor magnetic system of the repaired rotor is equal to the first magnetic system deflection angle, and adjusting the angle of the new Hall angle sensor so that the magnetic system deflection angle of the Hall angle sensor is equal to the second magnetic system deflection angle;

[0086] Step 205: Fix the Hall angle sensor.

[0087] The motor rotor repair method provided in the embodiment of the present application is applied to the motor rotor repair device of any of the above-mentioned technical solutions, so the motor rotor repair method has all the beneficial effects of the motor rotor repair device of the above-mentioned technical solutions.

[0088] The motor rotor repair method provided in the embodiment of the present application can adjust the magnetic system deflection angle of the motor rotor magnetic system and the Hall angle sensor during the repair process of the motor, so that the magnetic system deflection angle of the motor after the repair is the same as the magnetic system deflection angle of the motor before the repair, and the vehicle can successfully identify and control the motor after the repair. When a vehicle motor fails, the fault can be eliminated by repair, which replaces the repair solution of replacing the entire motor in traditional technology, reduces costs, breaks the technical monopoly in the vehicle repair process, and improves the experience of vehicle users.

[0089] like Figures 1 to 5 As shown, taking some specific use scenarios as an example, if a bearing of a motor fails and the motor cannot work normally, the maintenance solution for the vehicle in the traditional technology will be to replace the motor as a whole, which has high maintenance costs. Through the rotor maintenance device and method of the motor provided in the embodiment of the present application, one end of the Hall angle sensor of the faulty motor can be fixed on the workbench 110 through the fixing part 120; then the detection component 130 is controlled to move relative to the fixing part 120, and the first magnetic system deflection angle of the rotor magnetic system of the rotor is obtained through the first detection part 132, and the second magnetic system deflection angle of the Hall angle sensor is obtained through the second detection part 133. Assume that the first magnetic system deflection angle is 32.5° and the second magnetic system deflection angle is 169.7°. After determining the first magnetic system deflection angle and the second magnetic system deflection angle of the original motor, the motor can be disassembled. During the disassembly process, the Hall angle sensor is likely to be damaged (the Hall angle sensor has a low cost), and then the faulty bearing is replaced. After the replacement is completed, the new Hall angle sensor is arranged at one end of the shaft. The repaired motor is then set on the fixed part 120, and the overall angle of the motor is first adjusted by the fine-tuning unit 140 so that the detection reading of the magnetic system deflection angle of the first detection part 132 is 32.5°. The motor is then locked. In this case, the deflection angle of the rotor magnetic system of the motor cannot be changed. The angle of the Hall angle sensor can then be adjusted manually until the magnetic system deflection angle of the Hall angle sensor is 169.7°. The Hall angle sensor is then fixed to complete the repair of the motor. Of course, the angle of the Hall angle sensor can also be adjusted by adjusting the component 160, which can make the motor repair more accurate. Based on this, through the device combination method provided in the embodiment of the present application, the faulty motor can be maintained, avoiding the replacement of the entire machine and reducing costs.

[0090] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0092] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotor maintenance device for a motor, wherein the rotor comprises a rotating shaft, a bearing sleeved on the rotating shaft, a rotor magnetic system, and a Hall angle sensor arranged at an end of the rotating shaft, characterized in that: The rotor maintenance device of the motor comprises: A workbench, wherein an X-axis slide rail is formed on the workbench; A fixing part, the fixing part is arranged on the workbench, and the fixing part is used to fix the rotor to be repaired; A detection component, the detection component includes a moving frame, a first detection part and a second detection part, the moving frame is slidably connected to the X-axis slide rail, a Z-axis slide rail is formed on the moving frame, the first detection part is slidably connected to the Z-axis slide rail, the first detection part is used to detect the deflection angle of the rotor magnetic system, the second detection part is slidably connected to the Z-axis slide rail, and the second detection part is used to detect the deflection angle of the magnetic system of the Hall angle sensor.

2. The rotor maintenance device of the motor according to claim 1, characterized in that: The fixing portion comprises: a first fixing portion and a second fixing portion, wherein the first fixing portion and the second fixing portion are both arranged on the workbench; Wherein, the first fixing part comprises: a first fixing seat, a first fixing platform and a first locking member, the first fixing seat is fixedly connected to the workbench, the first fixing platform is rotatably connected to the first fixing seat, a pulley fixing part is formed on the first fixing platform, and the first locking member is used to lock the first fixing platform; Wherein, the second fixing part includes: a second fixing seat, a second fixing platform and a second locking member, the second fixing seat is fixedly connected to the workbench, the second fixing platform is rotatably connected to the second fixing seat, a gear wheel fixing part is formed on the second fixing platform, and the second locking member is used to lock the second fixing platform.

3. The rotor maintenance device of the motor according to claim 2, characterized in that: The first fixing portion further includes a bushing, and the bushing is used to be sleeved on the pulley of the rotating shaft, and the first fixing platform is used to fix the bushing.

4. The rotor maintenance device of the motor according to claim 3, characterized in that: The first locking member comprises: The pin is used to pass through the first base and connect to the second base.

5. The rotor maintenance device of the motor according to claim 4, characterized in that: The fixing part further includes: a fine-tuning unit, which is connected to the first fixing platform and the second fixing platform and is used to drive the first fixing platform and the second fixing platform to rotate; wherein the fine-tuning unit includes: A first screwing portion and a first screw, wherein the first screwing portion is arranged at an end of the first screw, and the first screw passes through the first fixing seat and is connected to the first fixing platform; A second screwing portion and a second lead screw, wherein the second screwing portion is arranged at an end portion of the second lead screw, and the second lead screw passes through the second fixing seat and is connected to the second fixing platform.

6. The rotor repair device of a motor according to any one of claims 1 to 5, characterized in that: Also includes: An adjustment seat, the adjustment seat is slidably connected to the X-axis slide rail, and a Y-axis slide rail is formed in the adjustment seat; Wherein, the movable frame is slidably connected to the Y-axis slide rail.

7. The rotor repair device of a motor according to any one of claims 1 to 5, characterized in that: The second detection portion is arranged on the top of the first detection portion, the first detection portion is formed with an overlap portion on a side facing the workbench, and the second detection portion is formed with a positioning groove on a side facing the workbench.

8. The rotor repair device of a motor according to any one of claims 1 to 5, characterized in that: Also includes: An adjusting component, the adjusting component is arranged in the first detecting part, the adjusting component is used to rotate the Hall angle sensor, and the adjusting component includes: An adjusting member, wherein the adjusting member is conical in shape, an opening end of the adjusting member is arranged toward the workbench, and an inner wall of the adjusting member is a rough surface; A screwing handle, wherein the screwing handle passes through the housing of the first detection part and is connected to the adjusting member; A gasket is used for being sleeved on the Hall angle sensor.

9. The rotor repair device of a motor according to any one of claims 1 to 5, characterized in that: Also includes: A magnetic shielding member is detachably connected to the movable frame and is used for being arranged between the first detection part and the second detection part.

10. A method for repairing a rotor of a motor, characterized in that: A rotor repair device for a motor according to any one of claims 1 to 9, wherein the rotor repair method for the motor comprises: Fixing one end of the motor away from the Hall angle sensor to the workbench through the fixing part; Control the detection component to move relative to the fixing part, obtain a first magnetic system deflection angle of the rotor magnetic system of the rotor through the first detection part, and obtain a second magnetic system deflection angle of the Hall angle sensor through the second detection part; Disassembling the Hall angle sensor, replacing the bearing or the rotor magnetic system, and assembling a new Hall angle sensor on the rotating shaft to obtain a repaired rotor; The repaired rotor is placed on the fixing part, and the angle of the repaired rotor relative to the workbench is adjusted so that the magnetic system deflection angle of the rotor magnetic system of the repaired rotor is equal to the first magnetic system deflection angle, and the angle of the new Hall angle sensor is adjusted so that the magnetic system deflection angle of the Hall angle sensor is equal to the second magnetic system deflection angle; Fixed Hall angle sensor.

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