Motor end cover bearing induction heating device

Abstract

The utility model relates to a motor end cover bearing induction heating device, and relates to the field of motor installation equipment, the motor end cover bearing induction heating device comprises a supporting assembly, an adjusting assembly and a heating assembly, the supporting assembly comprises a supporting plate, the adjusting assembly comprises a control member, the heating assembly comprises a heating member, the heating member is slidably arranged on the supporting plate, and the control member is arranged on the supporting plate. The heating part can move towards the side close to or away from the supporting plate, the heating part can stretch into the end cover mounting hole to heat the end cover, the control part is connected with the heating part to drive the heating part to move, and the device has the effect of improving the labor intensity of personnel.

Description

Technical Field

[0001] The present application relates to the field of motor installation equipment, and in particular to an induction heating device for a motor end cover bearing. Background Art

[0002] The end cover is an important component of the motor. The end cover can protect the internal structure of the motor. The most important function of the end cover is to support the bearing, and the bearing in turn supports the rotor. The installation of the bearing and the end cover is particularly important. Before installing the bearing and the end cover, the end cover needs to be heated.

[0003] In the related technology, during the production of traction motors, the bearings need to be installed on the motor end covers. First, take out the motor end covers that need to be installed, move the motor end covers to the oven, and then place the motor end covers in the oven. Place the motor end covers in the designated position, then turn on the oven. The oven can heat the motor end covers. Heat 6 motor end covers at a time, heating to 110±10℃, and keep warm for 60 minutes. When the motor end covers reach the specified temperature, take out the end covers from the oven, take out the bearings that need to be installed, and assemble the motor end covers and bearings. After assembly, place them at room temperature for use. The cooling time is 90 minutes.

[0004] With regard to the above-mentioned related technologies, personnel move the motor end cover into an oven, and the oven can heat the motor end cover. Subsequently, the bearing and the motor end cover are installed. However, when heating the motor end cover, personnel are required to move the motor end cover into the oven. After the heating is completed, the personnel take the motor end cover out of the oven, and then install the bearing and the end cover. The operation is relatively cumbersome, which increases the labor intensity of the personnel. Utility Model Content

[0005] In order to improve the problem of increased labor intensity of personnel, the present application provides an induction heating device for a motor end cover bearing.

[0006] The present application provides a motor end cover bearing induction heating device adopts the following technical solution:

[0007] An induction heating device for a motor end cover bearing comprises a support assembly, an adjustment assembly and a heating assembly, wherein the support assembly comprises a support plate, the adjustment assembly comprises a control component, the heating assembly comprises a heating component, the heating component is slidably arranged on the support plate, the heating component can move toward or away from one side of the support plate, the heating component can extend into an end cover mounting hole to heat the end cover, and the control component is connected to the heating component to drive the heating component to move.

[0008] By adopting the above technical solution, when it is necessary to use the motor end cover bearing induction heating device, first, take out the end cover that needs to be heated, and then start the control component, the control component drives the heating component to move toward the side away from the support plate, and when the heating component moves to the appropriate position, the end cover is placed on the support plate, and the end cover and the support plate are fixed, and then the control component is started again, the control component drives the heating component to move toward the side close to the support plate until the heating component extends into the end cover mounting hole, and the heating component is turned on, and the heating component can heat the end cover, and after the end cover is heated, the control component is started, the control component drives the heating component to move toward the side away from the support plate, and then the bearing is taken out, and the bearing and the end cover are installed, and then the personnel take out the end cover with the bearing installed and put it in the appropriate position; compared with the related art, the present application fixes the end cover on the support plate by the personnel, and drives the heating component to heat the end cover by the control component, and after the heating is completed, the bearing and the end cover can be installed without the need for the personnel to carry them multiple times, which is conducive to improving the problem of increased labor intensity of the personnel.

[0009] Optionally, the heating element includes a heating power supply, a positive wire, a heating induction coil, a negative wire and an induction heating coil, one end of the positive wire is connected to the positive electrode of the heating power supply, and the other end is connected to the heating induction coil, one end of the negative wire is connected to the negative electrode of the heating power supply, and the other end is connected to the heating induction coil, the heating induction coil forms a loop through the positive wire and the negative wire, the induction heating coil is coaxially connected to the outside of the heating induction coil, the induction heating coil is used to extend into the end cover mounting hole to heat the end cover, and the control element is connected to the heating power supply.

[0010] By adopting the above technical solution, when the end cover needs to be heated, first, the end cover and the support plate are fixed, and then the control component drives the heating power supply to move toward the side close to the support plate until the induction heating coil extends into the mounting hole of the end cover. At this time, the heating power supply is turned on, and the heating induction coil forms a loop with the positive wire and the negative wire, an alternating magnetic field is generated at the heating position of the induction heating coil, and an eddy current is formed at the side wall of the end cover mounting hole. The eddy current converts electrical energy into thermal energy, and heats the side wall of the end cover mounting hole. The side wall of the end cover mounting hole expands due to the heat. After the heating is completed, the control component is started again to separate the induction heating coil from the end cover, and the bearing and the end cover are installed. The bearing and the side wall of the end cover mounting hole can be more closely matched. By setting the positive wire, the heating induction coil, the negative wire and the induction heating coil, induction heating is adopted, and the time taken to heat the end cover is relatively short, which saves costs.

[0011] Optionally, a positioning hole is formed on the support plate, and a positioning plate is connected to the support plate in the positioning hole, and the induction heating coil is arranged opposite to the positioning plate.

[0012] By adopting the above technical solution, when the end cover needs to be placed on the support plate, the end cover that needs to be heated is taken out and placed on the positioning plate. Subsequently, the end cover and the support plate are fixed, and the adjusting member is started to extend the induction heating coil into the end cover mounting hole to heat the end cover. By setting the positioning plate, it is helpful to position the end cover, making it convenient for personnel to place the end cover.

[0013] Optionally, the support plate is provided with a plurality of sliding grooves, the plurality of sliding grooves are evenly distributed along the circumference of the positioning plate, the sliding grooves penetrate the support plate along the thickness direction of the support plate, and the sliding grooves are arranged from the positioning plate to a side away from the positioning plate;

[0014] The motor end cover bearing induction heating device also includes a fixing component, which includes multiple fixing plates and an adjusting member. One fixing plate corresponds to one sliding groove, and a placement area for the end cover is reserved between the multiple fixing plates. The fixing plate is located on the side of the support plate close to the heating element. The fixing plate can move in the sliding groove along the length direction of the sliding groove. The multiple fixing plates are used to fix the end covers. The adjusting member is connected to the multiple fixing plates to drive the multiple fixing plates to move simultaneously.

[0015] By adopting the above technical solution, when the end cap needs to be placed, first, start the adjusting member, which drives the multiple fixing plates to move toward the side away from the positioning plate. When the fixing plate moves to a suitable position, place the end cap in the placement area, and start the adjusting member again. The adjusting member can drive the multiple fixing plates to move toward the side close to the positioning plate until the multiple fixing plates fix the end cap, and then heat the end cap. By setting the fixing plate, on the one hand, it is convenient to fix the end cap, which is helpful to reduce the shaking of the end cap during the heating process; on the other hand, the fixing plate can slide along the sliding groove, and the size of the placement area composed of the multiple fixing plates can be adjusted, which is convenient for fixing end caps of different sizes.

[0016] Optionally, the adjustment member includes an adjustment seat and a plurality of hinged rods, the adjustment seat is located on a side of the support plate away from the heating member, the adjustment seat is arranged opposite to the positioning plate, the adjustment seat is slidably arranged on the support plate, the adjustment seat can move toward or away from the positioning plate, one hinged rod corresponds to one fixed plate, one end of the hinged rod is hinged to the fixed plate, and the other end is hinged to the adjustment seat;

[0017] The fixing assembly further comprises a lifting member, and the lifting member is connected to the adjustment seat to drive the adjustment seat to move.

[0018] By adopting the above technical solution, when it is necessary to adjust the position of the fixed plate, the lifting member is started, and the lifting member drives the adjustment seat to move toward the side close to the positioning plate. During the movement of the adjustment seat, the hinge rod can push the fixed plate to move, and the fixed plate moves along the sliding groove toward the side away from the positioning plate. The placement area formed by the multiple fixed plates becomes larger, and then the end cover is placed in the placement area, and the end cover is fixed by the multiple fixed plates. By setting the lifting member, the adjustment seat and the hinge rod, it is convenient to drive the multiple fixed plates to move at the same time.

[0019] Optionally, the heating element further includes a protective ring, which is coaxially located outside the induction heating ring and is fixed to the induction heating ring.

[0020] By adopting the above technical solution, when the control component drives the induction heating coil chamber to extend into the end cover mounting hole, the protective ring contacts the end cover. By providing the protective ring, it is helpful to reduce the wear of the end cover due to friction with the induction heating coil.

[0021] Optionally, a protective pad is fixed to each side of the plurality of fixing plates close to each other.

[0022] By adopting the above technical solution, when the fixing plate fixes the end cover, the protective pad contacts the end cover. Providing the protective pad is helpful to reduce the contact between the fixing plate and the end cover, thereby reducing the wear of the end cover.

[0023] Optionally, the heating assembly further comprises a plurality of temperature measuring components, which are evenly distributed along the circumference of the end cover mounting hole, and are connected to a side of the end cover close to the mounting hole, and are used to measure the temperature of the heated end cover.

[0024] By adopting the above technical solution and providing a temperature measuring component, it is convenient to measure the temperature at the end cover mounting hole, which is helpful for personnel to observe the temperature condition of the end cover heating.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Compared with the related art, in this application, personnel fix the end cover on the support plate, and drive the heating element to heat the end cover through the control element. After the heating is completed, the bearing and the end cover can be installed without the need for personnel to carry them multiple times, which is conducive to improving the problem of increased labor intensity of personnel;

[0027] 2. By arranging the positive wire, the heating induction coil, the negative wire and the induction heating ring, induction heating is adopted, so that the time spent on heating the end cover is relatively short, thus saving costs;

[0028] 3. By setting a fixing plate, on the one hand, it is convenient to fix the end cover, which is helpful to reduce the shaking of the end cover during the heating process; on the other hand, the fixing plate can slide along the sliding groove, and multiple fixing plates can be adjusted to form a small placement area, which is convenient for fixing end covers of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the overall structure of the first viewing angle in this embodiment;

[0030] Figure 2 is a schematic diagram of the structure of the support assembly and the fixing assembly in this embodiment;

[0031] Figure 3 yes Figure 2 A magnified view of middle;

[0032] Figure 4 yes Figure 2 Enlarged view of middle B;

[0033] Figure 5 is a schematic diagram of the overall structure of the second viewing angle in this embodiment;

[0034] Figure 6 yes Figure 5 Enlarged view of C in the middle.

[0035] Explanation of the accompanying drawings: 1. Support assembly; 11. Support plate; 111. Positioning hole; 112. Positioning plate; 113. Sliding groove; 114. Avoidance groove; 12. Support member; 2. Fixing assembly; 21. Lifting member; 211. Connecting rod; 2111. Articulated groove; 212. Screw rod; 213. Lifting motor; 22. Adjusting member; 221. Adjusting seat; 222. Articulated rod; 23. Fixing plate; 231. Sliding seat; 232. Protective pad; 3. Adjusting assembly; 31. Adjusting bracket; 32. Control member; 4. Heating assembly; 41. Heating member; 411. Heating power supply; 412. Positive wire; 413. Heating induction coil; 414. Negative wire; 415. Induction heating coil; 416. Protective ring; 42. Temperature measuring member; 5. End cover. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The present application embodiment discloses an induction heating device for a motor end cover bearing. Figure 1 and Figure 2 A motor end cover bearing induction heating device includes a supporting component 1, a fixing component 2, an adjusting component 3 and a heating component 4. The fixing component 2 and the adjusting component 3 are both located on the supporting component 1, and the heating component 4 is arranged on the adjusting component 3.

[0038] Reference Figure 1 The support assembly 1 includes a support plate 11 and a plurality of support members 12. In this embodiment, the support plate 11 and the rectangular plate are horizontally arranged. The plurality of support members 12 are located on one side of the support plate 11. The support member 12 is preferably a support rod. In this embodiment, the number of the support members 12 is four. One end of the support member 12 is welded to the support plate 11. The four support members 12 are arranged in a matrix. The four support members 12 can support the support plate 11.

[0039] Reference Figure 1 , Figure 2 and Figure 3 The fixing assembly 2 includes a lifting member 21, an adjusting member 22 and a plurality of fixing plates 23. In this embodiment, the lifting member 21 includes a connecting rod 211, a screw 212 and a lifting motor 213. A positioning hole 111 is opened in the middle of the support plate 11. The support plate 11 is provided with a positioning plate 112 in the positioning hole 111. The positioning plate 112 can fit with the positioning hole 111. The positioning plate 112 is horizontally arranged. The positioning plate 112 is welded to the support plate 11. The connecting rod 211 is a rectangular rod. The connecting rod 211 is located on the side of the support plate 11 close to the support member 12, and the connecting rod 211 is vertically arranged. One end of the connecting rod 211 is welded to the positioning plate 112. In this embodiment, the connecting rod 211 is hollow, the screw 212 is located in the connecting rod 211, and the arrangement of the screw 212 is In the same direction as the setting direction of the connecting rod 211, both ends of the screw 212 are rotatably connected to the connecting rod 211, the lifting motor 213 is located at the end of the connecting rod 211 away from the support plate 11, the screw of the lifting motor 213 is fixedly connected to the connecting rod 211, and the output shaft of the lifting motor 213 passes through the connecting rod 211 and is coaxially fixedly connected to one end of the screw 212 through a coupling, and the output shaft of the lifting motor 213 is rotatably connected to the connecting rod 211. In this embodiment, the adjusting member 22 includes an adjusting seat 221 and a plurality of hinged rods 222, the adjusting seat 221 is located in the connecting rod 211, and the adjusting seat 221 is located on the screw 212, the adjusting seat 221 is threadedly connected to the screw 212, and the adjusting seat 221 can move on the screw 212 along the length direction of the screw 212.

[0040] Reference Figure 2 , Figure 3 and Figure 4The connecting rod 211 is provided with a hinge groove 2111 on each of the vertically arranged side walls. The number of the hinge grooves 2111 is four. The setting direction of the hinge grooves 2111 is the same as the setting direction of the connecting rod 211. The hinge grooves 2111 are connected to the inside of the connecting rod 211. The support plate 11 is provided with four sliding grooves 113. The four sliding grooves 113 are evenly distributed along the circumference of the support plate 11. The sliding grooves 113 penetrate the support plate 11 along the thickness direction of the support plate 11. The sliding grooves 113 are connected to the connecting rod 211. 1 is arranged on the side away from the connecting rod 211, a sliding groove 113 corresponds to a hinge groove 2111, and the two side walls of the support plate 11 opposite to the sliding groove 113 are each provided with an avoidance groove 114, and the setting direction of the avoidance groove 114 is consistent with the setting direction of the sliding groove 113; in this embodiment, the number of the fixed plates 23 is four, and one fixed plate 23 corresponds to one sliding groove 113, and one end of the fixed plate 23 extends into the sliding groove 113, and the fixed plate 23 can slide along the sliding groove 113 The fixing plate 23 slides in the length direction of the groove 113, and a sliding seat 231 is provided at one end of the fixing plate 23 in the sliding groove 113. The sliding seat 231 is welded to the fixing plate 23, and the sliding seat 231 can extend into the avoidance groove 114. The sliding seat 231 can slide in the avoidance groove 114 along the length direction of the avoidance groove 114. The fixing plate 23 is in an arc shape, and the openings of the fixing plate 23 are close to each other. The fixing plate 23 is in contact with the outer wall of the end cover 5, and the four fixing plates 23 form a placement area. The four fixing plates 23 are close to each other. A protective pad 232 is provided on each proximal side, and the protective pad 232 is fixedly bonded to the fixed plate 23; in this embodiment, there are four hinged rods 222, one hinged rod 222 corresponds to one hinge groove 2111, one end of the hinged rod 222 is hinged to the adjustment seat 221, and the other end is hinged to the sliding seat 231 after passing through the hinge groove 2111, and the hinged rod 222 is inclined downward in the direction from the sliding seat 231 to the adjustment seat 221, and the hinged rod 222 can slide along the length direction of the connecting rod 211.

[0041] Reference Figure 5 The adjusting component 3 is located on the side of the supporting plate 11 away from the supporting member 12. The adjusting component 3 includes an adjusting bracket 31 and a control member 32. In this embodiment, the adjusting bracket 31 is an L-shaped plate. One end of the adjusting bracket 31 is fixedly connected to the supporting plate 11 by screws, and the other end is located above the positioning plate 112. The control member 32 is an adjusting cylinder. The adjusting cylinder is vertically arranged. The cylinder body of the adjusting cylinder is fixedly connected to the adjusting bracket 31 by screws. The piston rod of the adjusting cylinder faces the side of the supporting plate 11. The piston rod of the adjusting cylinder is connected to the heating component 4. The adjusting cylinder can drive the heating component 4 to move toward or away from the side of the supporting plate 11, and the heating component 4 can heat the end cover 5.

[0042] Reference Figure 5 and Figure 6The heating assembly 4 includes a heating element 41 and a plurality of temperature measuring elements 42. The heating power supply 411 is located between the adjusting cylinder and the positioning plate 112. The piston rod of the adjusting cylinder is welded to the shell of the heating power supply 411. In this embodiment, the heating element 41 includes a positive wire 412, a heating power supply 411, a heating induction coil 413, a negative wire 414, an induction heating coil 415 and a protective ring 416. One end of the positive wire 412 is connected to the positive electrode of the heating power supply 411, and the other end is connected to the heating induction coil 413. The other end of the heating induction coil 413 is connected to one end of the negative wire 414. The other end of the negative wire 414 is connected to the negative electrode in the heating power supply 411. The heating induction coil 413 is connected to the positive wire 412 through the positive wire 41 2 and the negative electrode wire 414 form a loop, the induction heating coil 415 is coaxially located outside the heating induction coil 413, the induction heating coil 415 and the heating induction coil 413 are connected by a wire, the induction heating coil 415 is arranged opposite to the positioning plate 112, the protective ring 416 is coaxially located outside the induction heating coil 415, the protective ring 416 is fixedly bonded to the induction heating coil 415, when it is necessary to heat the end cover 5, the regulating cylinder drives the heating induction coil 413 to be located in the mounting hole of the end cover 5 where the bearing needs to be installed, at this time, the protective ring 416 is in contact with the mounting hole of the end cover 5, the protective ring 416 can protect the end cover 5, and can reduce the wear of the end cover 5 due to friction with the induction heating coil 415.

[0043] Reference Figure 5 and Figure 6 In this embodiment, the number of the temperature measuring components 42 is six, and the six temperature measuring components 42 are evenly distributed along the circumference of the end cover 5. The temperature measuring components 42 are preferably temperature sensors, and the temperature sensors are fixedly bonded to the side of the end cover 5 close to the mounting hole. The temperature sensors can measure the temperature at the mounting hole of the end cover 5. When the induction heating coil 415 heats the end cover 5 to a specified temperature, the heating power supply 411 is turned off, the induction heating coil 415 stops heating, and the regulating cylinder is started to separate the induction heating coil 415 from the mounting hole, and then the bearing is installed with the end cover 5.

[0044] The implementation principle of an induction heating device for a motor end cover bearing in an embodiment of the present application is as follows: when the induction heating device for a motor end cover bearing is needed, first, take out the end cover 5 that needs to be heated. According to the size of the end cover 5, the personnel starts the fixing component 2, which can adjust the four fixing plates 23 to a suitable position, and then places the end cover 5 in the placement area according to the specified requirements. Subsequently, the adjusting component 3 is started, and the adjusting component 3 can move the heating component 4 to the mounting hole of the end cover 5. Then, the heating component 4 is started, and the heating component 4 heats the end cover 5.

[0045] When the end cover 5 needs to be placed, the lifting motor 213 is started, and the lifting motor 213 drives the screw 212 to rotate. During the rotation of the screw 212, the adjusting seat 221 can move on the screw 212 toward the side close to the support plate 11. At this time, the hinged rod 222 pushes the fixed plate 23 to move toward the side away from each other of the four fixed plates 23. Subsequently, the end cover 5 is placed on the support plate 11, and the lifting motor 213 is started again. The lifting motor 213 drives the screw 212 to rotate. At this time, the adjusting seat 221 can drive the hinged rod 222 to move, and the hinged rod 222 pulls the fixed plate 23 to fix the end cover 5.

[0046] When the end cover 5 needs to be heated, the regulating cylinder is started, and the regulating cylinder drives the heating induction coil 413 to move toward the side close to the support plate 11 until the heating induction coil 413 is located in the mounting hole of the end cover 5. At this time, the protective ring 416 contacts the end cover 5, and the heating power supply 411 is turned on, and the heating induction coil 413 can heat the end cover 5.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An induction heating device for a motor end cover bearing, characterized in that: The invention comprises a supporting assembly (1), an adjusting assembly (3) and a heating assembly (4); the supporting assembly (1) comprises a supporting plate (11); the adjusting assembly (3) comprises a control component (32); the heating assembly (4) comprises a heating component (41); the heating component (41) is slidably arranged on the supporting plate (11); the heating component (41) can move toward or away from the supporting plate (11); the heating component (41) can extend into a mounting hole of an end cover (5) to heat the end cover (5); and the control component (32) is connected to the heating component (41) to drive the heating component (41) to move.

2. The motor end cover bearing induction heating device according to claim 1, characterized in that: The heating element (41) comprises a heating power source (411), a positive lead (412), a heating induction coil (413), a negative lead (414) and an induction heating coil (415); one end of the positive lead (412) is connected to the positive pole of the heating power source (411), and the other end is connected to the heating induction coil (413); one end of the negative lead (414) is connected to the negative pole of the heating power source (411), and the other end is connected to the heating induction coil (413); the heating induction coil (413) forms a loop through the positive lead (412) and the negative lead (414); the induction heating coil (415) is coaxially connected to the outside of the heating induction coil (413); the induction heating coil (415) is used to extend into the mounting hole of the end cover (5) to heat the end cover (5); and the control element (32) is connected to the heating power source (411).

3. The induction heating device for motor end cover bearing according to claim 2 is characterized in that: The support plate (11) is provided with a positioning hole (111), the support plate (11) is connected to a positioning plate (112) in the positioning hole (111), and the induction heating coil (415) is arranged opposite to the positioning plate (112).

4. The motor end cover bearing induction heating device according to claim 3 is characterized in that: The support plate (11) is provided with a plurality of sliding grooves (113), the plurality of sliding grooves (113) are evenly distributed along the circumference of the positioning plate (112), the sliding grooves (113) penetrate the support plate (11) along the thickness direction of the support plate (11), and the sliding grooves (113) are arranged from the positioning plate (112) to a side away from the positioning plate (112); The motor end cover bearing induction heating device also includes a fixing assembly (2), the fixing assembly (2) including a plurality of fixing plates (23) and an adjusting member (22), one of the fixing plates (23) corresponds to one of the sliding grooves (113), a placement area for placing the end cover (5) is reserved between the plurality of fixing plates (23), the fixing plate (23) is located on a side of the support plate (11) close to the heating member (41), the fixing plate (23) can move in the sliding groove (113) along the length direction of the sliding groove (113), the plurality of fixing plates (23) are used to fix the end cover (5), and the adjusting member (22) is connected to the plurality of fixing plates (23) to drive the plurality of fixing plates (23) to move simultaneously.

5. The motor end cover bearing induction heating device according to claim 4, characterized in that: The adjusting member (22) comprises an adjusting seat (221) and a plurality of hinged rods (222); the adjusting seat (221) is located on a side of the supporting plate (11) away from the heating member (41); the adjusting seat (221) is arranged opposite to the positioning plate (112); the adjusting seat (221) is slidably arranged on the supporting plate (11); the adjusting seat (221) can move toward or away from the positioning plate (112); one hinged rod (222) corresponds to one fixed plate (23); one end of the hinged rod (222) is hinged to the fixed plate (23), and the other end is hinged to the adjusting seat (221); The fixing assembly (2) further comprises a lifting member (21), wherein the lifting member (21) is connected to the adjustment seat (221) to drive the adjustment seat (221) to move.

6. The induction heating device for motor end cover bearing according to claim 2 is characterized in that: The heating element (41) further comprises a protective ring (416), wherein the protective ring (416) is coaxially located outside the induction heating ring (415), and the protective ring (416) is fixed to the induction heating ring (415).

7. The motor end cover bearing induction heating device according to claim 4, characterized in that: A protective pad (232) is fixed to each of the sides of the plurality of fixing plates (23) close to each other.

8. The motor end cover bearing induction heating device according to claim 2, characterized in that: The heating assembly (4) further comprises a plurality of temperature measuring components (42), wherein the plurality of temperature measuring components (42) are evenly distributed along the circumference of the mounting hole of the end cover (5), the temperature measuring components (42) are connected to a side of the end cover (5) close to the mounting hole, and the temperature measuring components (42) are used to measure the temperature of the heated end cover (5).

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