High-temperature-resistant motor rotating shaft

Abstract

The utility model relates to the technical field of motor rotating shafts, and discloses a high-temperature-resistant motor rotating shaft which comprises a shaft body, a reinforcing layer is arranged in the shaft body, a heat conduction layer is arranged in the reinforcing layer, a plurality of heat dissipation grooves are formed in the exteriors of the shaft body, the reinforcing layer and the heat conduction layer, one end of the shaft body is fixedly connected with a heat conduction block, and the section of the heat conduction block is arranged to be annular. A heat absorption shaft is fixedly connected to the middle of the heat conduction block, a first circulation ring, a second circulation ring and a spiral pipe are arranged outside the heat absorption shaft, the two ends of the spiral pipe are fixedly connected to one side of the first circulation ring and one side of the second circulation ring, and a circulation pipe is fixedly connected to one side of the second circulation ring. According to the utility model, the heat dissipation effect of the rotating shaft is enhanced, so that the high temperature resistance is enhanced, the rotating shaft is protected, the phenomenon that the rotating shaft is damaged due to high temperature is reduced, the downtime is reduced, the maintenance cost is reduced, the safety of the motor during operation is improved, and the motor is suitable for special working environments.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shafts, in particular to a high-temperature resistant motor shaft. Background Art

[0002] The motor shaft is an important transmission component inside the motor. It connects the internal kinetic energy of the motor with the external mechanical system to achieve mechanical rotation, thereby driving the load to work. When the motor is working, electrical energy is converted into mechanical energy and transmitted to the load through the shaft to exert its power and torque. The main function of the motor shaft is to convert electrical energy into mechanical energy and generate mechanical power through rotation. This power is then supported and transmitted to the load through components such as bearings to enable it to work normally. The material selection of the motor shaft has an important impact on its performance and service life. When selecting the shaft material, it is necessary to comprehensively consider factors such as the motor's heat dissipation requirements, working environment, cost, and compatibility with other materials.

[0003] After searching, the Chinese patent with application number CN202020591051.7 discloses a high-temperature resistant high-speed traction motor shaft. The existing high-temperature resistant high-speed traction motor shaft is generally fixed in design. When the motor is running at high speed, a failure at the shaft connection end will mostly cause the other end of the shaft to get stuck, causing the motor to be damaged and burned during work, reducing its service life and affecting the ease of use and practicality of the shaft. Therefore, when the shaft connection end is stuck, the protective rod and the protective cover on the shaft body cooperate with each other, so that the shaft body continues to rotate inside the protective cover through the protective rod to prevent jamming, avoid the device from being damaged and burned during work, and improve the ease of use and practicality of the shaft.

[0004] During the use of the above-mentioned motor shaft, it is helpful to prevent the shaft from getting stuck and causing damage and burning. However, the heat dissipation and high-temperature resistance of the motor shaft itself are relatively weak. When the motor device operates for a long time, high temperature will be generated, and the high-temperature environment will produce thermal stress, which is not convenient for heat dissipation. If the thermal stress is too large, it is easy to cause damage to the shaft, which reduces the safety when using the motor, increases the downtime of the motor due to failure, and thus increases the maintenance cost. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a high temperature resistant motor shaft.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-temperature resistant motor shaft, including a shaft body, a reinforcement layer is arranged inside the shaft body, a heat-conducting layer is arranged inside the reinforcement layer, a plurality of heat dissipation grooves are arranged outside the shaft body, the reinforcement layer and the heat-conducting layer, one end of the shaft body is fixedly connected to a heat-conducting block, the cross-section of the heat-conducting block is arranged in a ring shape, the middle part of the heat-conducting block is fixedly connected to a heat-absorbing shaft, the outside of the heat-absorbing shaft is provided with a first circulation ring, a second circulation ring and a spiral tube, the two ends of the spiral tube are fixedly connected to one side of the first circulation ring and the second circulation ring, one side of the second circulation ring is fixedly connected to a circulation tube, the other end of the circulation tube is threadedly connected to a liquid-blocking cover, the reinforcement layer is made of polyimide, and the heat-conducting layer is made of copper.

[0007] As a further description of the above technical solution:

[0008] The inner top end of the heat-conducting layer is fixedly connected with a mounting sleeve, the upper surface of the first circulation ring is fixedly connected with a mounting shell, and the outer portion of the mounting shell is arranged inside the mounting sleeve.

[0009] As a further description of the above technical solution:

[0010] A first threaded hole is formed at one end of the heat absorbing shaft, and a mounting groove is formed at the other end of the heat absorbing shaft.

[0011] As a further description of the above technical solution:

[0012] The first threaded hole is internally threadedly connected with a first bolt, and the first bolt passes through the shaft body, the reinforcement layer, the heat conductive layer and one side of the mounting shell.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the second circulation ring is fixedly connected with a mounting block, the other end of the shaft body is provided with a sealing cover, and second threaded holes are provided on both sides of the sealing cover.

[0015] As a further description of the above technical solution:

[0016] The second threaded hole is internally threadedly connected with a second bolt, and the second bolt passes through both sides of the shaft body, the reinforcement layer and the heat-conducting layer.

[0017] As a further description of the above technical solution:

[0018] A sealing plate is fixedly connected to the upper surface of the heat conducting block, a first connector is fixedly connected to the upper surface of the sealing plate, and a second connector is fixedly connected to the lower surface of the sealing cover.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model enhances the heat dissipation effect of the motor shaft through the cooperation of the reinforcement layer, the heat sweeper, the heat dissipation groove, the heat conduction block, the heat absorption shaft, the first circulation ring, the spiral tube, the second circulation ring, the circulation tube, and the liquid blocking cover, thereby facilitating the enhancement of high temperature resistance, facilitating the protection of the shaft to reduce the damage caused by high temperature, reducing downtime and maintenance costs, improving the safety of the motor during operation, and facilitating adaptation to special working environments.

[0021] 2. The utility model facilitates the disassembly of the spiral tube, the first circulation ring and the second circulation ring for storing coolant inside when the motor shaft is used at high temperature through the mutual cooperation of the mounting sleeve, the mounting shell, the first threaded hole, the mounting groove, the first bolt, the mounting block, the second threaded hole and the second bolt, thereby facilitating the replacement of the pipeline, which is beneficial to reducing the phenomenon that the wall layer of the liquid storage pipeline inside the shaft becomes thicker due to long-term liquid storage, thereby reducing the liquid storage performance. This is beneficial to enhancing the high temperature resistance of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure proposed by the utility model;

[0023] Figure 2 This is a partial structural diagram of the heat conduction block connection proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the heat dissipation slot structure proposed by the utility model;

[0025] Figure 4 This is a schematic diagram of the spiral tube structure proposed by the utility model;

[0026] Figure 5 This is a schematic diagram of the heat absorption shaft structure proposed by the utility model;

[0027] Figure 6 This is a schematic diagram of the installation shell structure proposed by the utility model;

[0028] Figure 7 This is a schematic diagram of the installation block structure proposed by the utility model.

[0029] Legend:

[0030] 1. Shaft body; 2. Reinforcement layer; 3. Heat-conducting layer; 4. Heat dissipation groove; 5. Heat-conducting block; 6. Heat-absorbing shaft; 7. Mounting sleeve; 8. Mounting shell; 9. First circulation ring; 10. Spiral tube; 11. Second circulation ring; 12. Circulation tube; 13. Liquid-blocking cover; 14. First threaded hole; 15. Mounting groove; 16. First bolt; 17. Mounting block; 18. Sealing cover; 19. Second threaded hole; 20. Second bolt; 21. Sealing plate; 22. First connector; 23. Second connector. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] As attached Figure 1-7 As shown, the utility model provides an embodiment: a high temperature resistant motor shaft, including a shaft body 1, a reinforcing layer 2 is arranged inside the shaft body 1, a heat conducting layer 3 is arranged inside the reinforcing layer 2, a plurality of heat dissipation grooves 4 are arranged outside the shaft body 1, the reinforcing layer 2 and the heat conducting layer 3, a heat conducting block 5 is fixedly connected to one end of the shaft body 1, the cross section of the heat conducting block 5 is arranged in a ring shape, a heat absorbing shaft 6 is fixedly connected to the middle of the heat conducting block 5, a first circulation ring 9, a second circulation ring 11 and a spiral tube 10 are arranged outside the heat absorbing shaft 6, and both ends of the spiral tube 10 are fixedly connected to One side of the first circulation ring 9 and the second circulation ring 11, one side of the second circulation ring 11 is fixedly connected with a circulation pipe 12, and the other end of the circulation pipe 12 is threadedly connected with a liquid blocking cover 13, the reinforcement layer 2 is made of polyimide, and the heat conductive layer 3 is made of copper. The reinforcement layer 2 is convenient for enhancing the structural strength of the shaft body 1, and the cooperation between the heat conductive layer 3 and the heat conductive block 5 is convenient for heat conduction, and the heat dissipation groove 4 is convenient for heat dissipation. The first circulation ring 9, the second circulation ring 11 and the spiral tube 10 are convenient for forming a liquid pipeline to allow the coolant to circulate, thereby facilitating the enhancement of the high temperature resistance of the rotating shaft.

[0033] As attached Figure 4 As shown, the inner top end of the heat conducting layer 3 is fixedly connected with a mounting sleeve 7, the upper surface of the first circulation ring 9 is fixedly connected with a mounting shell 8, the outer part of the mounting shell 8 is arranged inside the mounting sleeve 7, the inner threaded hole 14 is threadedly connected with a first bolt 16, the first bolt 16 passes through the shaft body 1, the reinforcement layer 2, the heat conducting layer 3 and one side of the mounting shell 8, the other end of the shaft body 1 is provided with a sealing cover 18, both sides of the sealing cover 18 are provided with second threaded holes 19, the upper surface of the heat conducting block 5 is fixedly connected with a sealing plate 21, the mounting sleeve 7 and the mounting shell 8 are convenient for limiting and splicing the first circulation ring 9, and the first bolt 16 is used to limit and fix the mounting shell 8 inserted into the mounting sleeve 7.

[0034] As attached Figure 5 As shown, a first threaded hole 14 is provided at one end of the heat absorbing shaft 6 , and a mounting groove 15 is provided at the other end of the heat absorbing shaft 6 . The first threaded hole 14 is used for threaded connection of the first bolt 16 , and the mounting groove 15 facilitates the sliding of the mounting block 17 .

[0035] As attached Figure 7As shown, a mounting block 17 is fixedly connected to the inner wall of the second circulation ring 11 to facilitate positioning of the second circulation ring 11 during installation.

[0036] As attached Figure 2 As shown, the second threaded hole 19 is internally threadedly connected with a second bolt 20 , and the second bolt 20 passes through both sides of the shaft body 1 , the reinforcement layer 2 and the heat-conducting layer 3 . The second threaded hole 19 facilitates the fixing of the sealing cover 18 .

[0037] As attached Figure 1 As shown, a first connector 22 is fixedly connected to the upper surface of the sealing plate 21, and a second connector 23 is fixedly connected to the lower surface of the sealing cover 18, for connecting the motor and the object to be rotated.

[0038] Working principle: When in use, the second connector 23 is connected to the output end of the motor, and the first connector 22 is connected to the rotating object, so as to facilitate the use of the rotating shaft, and then the liquid blocking cover 13 is unscrewed, and the coolant is transported to the second circulation ring 11 and the spiral tube 10 and the first circulation ring 9 through the circulation pipe 12, so as to form a cooler cavity inside the shaft body 1 through the connection of the pipeline. When the shaft generates heat during use, the heat conducting layer 3 and the heat conducting block 5 are used to conduct the heat of the shaft body 1 to the heat absorbing shaft 6, and then the coolant is filled in the first circulation ring 9, the second circulation ring 11 and the spiral tube 10, so as to facilitate the heat absorption of the heat absorbing shaft 6. The heat is cooled down, and at the same time, the heat is discharged outward according to the multiple heat dissipation grooves 4, so as to improve the high temperature resistance of the shaft. When the first circulation ring 9, the second circulation ring 11 and the spiral tube 10 need to be disassembled, the first bolt 16 is first screwed out of the first threaded hole 14 to release the limit of the mounting shell 8 and the mounting sleeve 7, and then the second bolt 20 is screwed out of the second threaded hole 19 to facilitate the disassembly of the sealing cover 18, thereby facilitating the removal of the pipeline body formed by the first circulation ring 9, the spiral tube 10 and the second circulation ring 11, and thus the interior of the shaft body 1. The operation during installation is reversed, which is convenient for replacing and repairing the pipeline body.

[0039] Among them, in the drawings of the disclosed embodiments of the utility model, only the structures involved in the disclosed embodiments are involved, and other structures can refer to the usual design. In the absence of conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant motor shaft, comprising a shaft body (1), characterized in that: A reinforcing layer (2) is arranged inside the shaft body (1), a heat conducting layer (3) is arranged inside the reinforcing layer (2), a plurality of heat dissipation grooves (4) are arranged outside the shaft body (1), the reinforcing layer (2) and the heat conducting layer (3), a heat conducting block (5) is fixedly connected to one end of the shaft body (1), the cross section of the heat conducting block (5) is arranged in a ring shape, a heat absorbing shaft (6) is fixedly connected to the middle of the heat conducting block (5), a first circulation ring (9), a second circulation ring (11) and a spiral tube (10) are arranged outside the heat absorbing shaft (6), two ends of the spiral tube (10) are fixedly connected to one side of the first circulation ring (9) and the second circulation ring (11), one side of the second circulation ring (11) is fixedly connected to a circulation tube (12), the other end of the circulation tube (12) is threadedly connected to a liquid blocking cover (13), the reinforcing layer (2) is made of polyimide, and the heat conducting layer (3) is made of copper.

2. The high temperature resistant motor shaft according to claim 1, characterized in that: The inner top end of the heat-conducting layer (3) is fixedly connected to a mounting sleeve (7), the upper surface of the first circulation ring (9) is fixedly connected to a mounting shell (8), and the outside of the mounting shell (8) is arranged inside the mounting sleeve (7).

3. The high temperature resistant motor shaft according to claim 1, characterized in that: A first threaded hole (14) is formed at one end of the heat absorbing shaft (6), and a mounting groove (15) is formed at the other end of the heat absorbing shaft (6).

4. The high temperature resistant motor shaft according to claim 3, characterized in that: The first threaded hole (14) is internally threadedly connected to a first bolt (16), and the first bolt (16) passes through the shaft body (1), the reinforcement layer (2), the heat-conducting layer (3) and one side of the mounting shell (8).

5. The high temperature resistant motor shaft according to claim 1, characterized in that: The inner wall of the second circulation ring (11) is fixedly connected to a mounting block (17), and the other end of the shaft body (1) is provided with a sealing cover (18), and second threaded holes (19) are provided on both sides of the sealing cover (18).

6. The high temperature resistant motor shaft according to claim 5, characterized in that: The second threaded hole (19) is internally threadedly connected to a second bolt (20), and the second bolt (20) passes through both sides of the shaft body (1), the reinforcement layer (2) and the heat-conducting layer (3).

7. The high temperature resistant motor shaft according to claim 5, characterized in that: A sealing plate (21) is fixedly connected to the upper surface of the heat conducting block (5), a first connector (22) is fixedly connected to the upper surface of the sealing plate (21), and a second connector (23) is fixedly connected to the lower surface of the sealing cover (18).

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