A wear-resistant new energy vehicle motor shaft

Abstract

The utility model relates to motor shaft field, concretely relates to a new energy automobile motor shaft of wear resistance, including the axle main part, the outside of axle main part is provided with the axle sleeve, both ends of axle sleeve all are provided with the protection cover, the inside circumference of axle sleeve is provided with the connecting sleeve, the inside penetration of axle sleeve is provided with the transmission turning lever, the outside of transmission turning lever is provided with the moving block, the inside of axle sleeve is provided with the lifting plate. The utility model discloses through setting up ceramic layer in axle main part, utilizes the characteristics of low density, high hardness of ceramic material, reduces the overall quality of motor shaft effectively while guaranteeing the structural strength, reduces the moment of inertia, thereby promotes the response speed and operating efficiency of motor, reduces the energy consumption, the ceramic layer has excellent wear resistance and anticorrosive performance, can reduce the wear and tear of axle main part in the high -speed rotation process significantly, prolongs the service life of motor shaft, is suitable for high -speed, high -load new energy automobile working condition environment.

Description

Technical Field

[0001] This utility model relates to the field of motor shafts, specifically to a wear-resistant motor shaft for new energy vehicles. Background Technology

[0002] A Chinese patent proposes a wear-resistant motor shaft (application number: CN202421657903.2), comprising: a motor shaft body, a bushing, a lubrication structure for lubricating the motor shaft body and the bushing, and a fixing structure for fixing the lubrication structure. The lubrication structure includes: a lubrication pad, lubrication holes formed in the lubrication pad, a telescopic spring fixedly installed inside the bushing, and a push plate fixedly installed at one end of the telescopic spring. The fixing structure includes: an end cap, a rotatable fixing bolt at one end of the end cap, and a positioning block fixedly installed on the other side of the end cap. In this invention, by installing a bushing on the motor shaft body, the strength and lifespan of the motor shaft body can be increased, and its wear can be reduced. Simultaneously, the lubrication pad fits snugly against the motor shaft body, and the grease in the lubrication holes fully contacts the motor shaft body, lubricating both the motor shaft body and the bushing, thereby improving the wear resistance of the motor shaft body.

[0003] Motor shafts are mostly made of metal as a whole, which has problems such as large weight, high moment of inertia, and easy wear. This not only increases the energy consumption of the motor, but also limits the response speed and operating efficiency. At the same time, the lubrication system is mostly static oil supply or passive lubrication, which makes it difficult to dynamically adjust the amount of lubrication according to the actual operating conditions of the motor, and cannot meet the needs of efficient operation and long-term protection.

[0004] Therefore, it is necessary to design a motor shaft that is structurally optimized, lightweight, wear-resistant, and equipped with intelligent lubrication adjustment function to meet the technical requirements of new energy vehicles for high-efficiency and high-reliability transmission components. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a wear-resistant motor shaft for new energy vehicles.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a wear-resistant motor shaft for new energy vehicles, including a shaft body, a bushing on the outside of the shaft body, protective covers at both ends of the bushing, a connecting sleeve on the inner circumference of the bushing, a transmission rod penetrating inside the bushing, a moving block on the outside of the transmission rod, a lifting plate inside the bushing, the lifting plate being fixedly connected to the connecting sleeve, and the moving block being connected to the lifting plate via a stabilizing rod.

[0008] Optionally, the machine shaft body includes an outer layer, the inner part of which is wrapped with a ceramic layer, and the inner part of which is wrapped with a shaft rod.

[0009] Optionally, the bushing has a uniformly spaced connecting hole on its outer circumference, and the protective cover has a uniformly spaced stabilizing wire on its outer circumference, the stabilizing wire extending into the connecting hole.

[0010] Optionally, the connecting sleeve is provided with connectors at both ends of its outer surface, and the bushing is provided with an adjustment cavity evenly distributed around its inner circumference. The number of adjustment cavities is adapted to the number of connectors, and the connecting sleeve is provided with lubrication heads evenly distributed at equal intervals on its outer surface.

[0011] Optionally, the number of transmission rods corresponds to the number of adjustment chambers, and a moving block matching the adjustment chamber is provided on the outside of the transmission rod, the moving block being slidably connected to the inner wall of the adjustment chamber.

[0012] Optionally, the lifting plate is fixedly connected to the connecting sleeve, and an adjusting head is fixedly connected to the outside of the lifting plate. The adjusting head and the moving block are both rotatably connected through a stabilizing rotating rod.

[0013] The beneficial effects achieved by this utility model are as follows:

[0014] This invention incorporates a ceramic layer within the motor shaft body. Utilizing the low density and high hardness of ceramic materials, it effectively reduces the overall mass of the motor shaft while maintaining structural strength, thereby decreasing rotational inertia, which improves the motor's response speed and operating efficiency, and reduces energy consumption. The ceramic layer also possesses excellent wear resistance and corrosion resistance, significantly reducing wear on the motor shaft body during high-speed rotation and extending the motor shaft's service life. It is suitable for the high-speed, high-load operating conditions of new energy vehicles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a structural sectional view of the main body of the machine shaft;

[0017] Figure 3 This is a schematic diagram of the bushing structure;

[0018] Figure 4 This is a structural sectional view of the bushing;

[0019] Figure 5 yes Figure 4 A schematic diagram of the partial structure of part A in the middle.

[0020] In the diagram, 1. Main shaft body; 101. Shaft rod; 102. Ceramic layer; 103. Outer layer; 2. Bushing; 201. Connecting hole; 202. Adjusting cavity; 3. Protective cover; 301. Support pad; 302. Stabilizing wire; 4. Connecting sleeve; 401. Connecting head; 402. Lubrication head; 5. Transmission rod; 6. Moving block; 7. Lifting plate; 701. Adjusting head; 8. Stabilizing rod. Detailed Implementation

[0021] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings. Example 1

[0022] like Figure 1-5 As shown, this utility model provides a wear-resistant new energy vehicle motor shaft, including a shaft body 1, a bushing 2 on the outside of the shaft body 1, protective covers 3 on both ends of the bushing 2, a connecting sleeve 4 on the inner circumference of the bushing 2, a transmission rod 5 through the bushing 2, a moving block 6 on the outside of the transmission rod 5, a lifting plate 7 inside the bushing 2, the lifting plate 7 being fixedly connected to the connecting sleeve 4, and the moving block 6 being connected to the lifting plate 7 via a stabilizing rod 8.

[0023] This invention utilizes the low density and high hardness of ceramic materials by setting a ceramic layer 102 in the main body 1 of the motor shaft. This effectively reduces the overall mass of the motor shaft and decreases the moment of inertia while ensuring structural strength, thereby improving the response speed and operating efficiency of the motor and reducing energy consumption. The ceramic layer 102 has excellent wear resistance and corrosion resistance, which can significantly reduce the wear of the main body 1 of the motor shaft during high-speed rotation and extend the service life of the motor shaft. It is suitable for the high-speed and high-load working environment of new energy vehicles. Example 2

[0024] like Figure 1-3 As shown, the main body 1 of the machine shaft includes an outer layer 103, the inner part of which is wrapped with a ceramic layer 102, and the inner part of the ceramic layer 102 is wrapped with a shaft rod 101.

[0025] Specifically, the shaft rod 101, ceramic layer 102 and outer layer 103 are respectively made of silicon nitride, ceramic layer 102 and high carbon chromium steel inner and outer rings, which achieves a dual improvement in high strength and wear resistance. At the same time, the ceramic layer 102 can reduce the weight of the main body of the motor shaft 1 as a whole and improve the operating efficiency of the motor shaft, which is suitable for the lightweight and high efficiency requirements of new energy vehicles.

[0026] In this embodiment, the bushing 2 has a uniformly circumferentially arranged connecting hole 201 on its outer side, and the protective cover 3 has a uniformly circumferentially arranged stabilizing wire 302 on its outer side, with the stabilizing wire 302 penetrating into the connecting hole 201. Example 3

[0027] like Figure 3-5 As shown, both ends of the connecting sleeve 4 are provided with connectors 401, the inner circumference of the bushing 2 is provided with adjustment cavities 202, the number of adjustment cavities 202 is matched with the number of connectors 401, and the outer side of the connecting sleeve 4 is provided with lubrication heads 402 at equal intervals.

[0028] Specifically, by using the connection between the connecting sleeve 4 and the shaft sleeve 2, the number and distribution of the lubrication heads 402 can be controlled, thereby achieving the control effect on the operation of the motor shaft.

[0029] In this embodiment, the number of transmission rods 5 corresponds to the number of adjustment cavities 202. A movable block 6 matching the adjustment cavity 202 is provided on the outside of the transmission rod 5. The movable block 6 is slidably connected to the inner wall of the adjustment cavity 202.

[0030] Specifically, a transmission rod 5 is provided with symmetrical opposite threads and is connected to the moving block 6, so that when the transmission rod 5 rotates, it drives the moving blocks 6 on both sides to move, thereby achieving stable sliding.

[0031] In this embodiment, the lifting plate 7 is fixedly connected to the connecting sleeve 4, and the lifting plate 7 is externally fixedly connected to the adjusting head 701. The adjusting head 701 and the moving block 6 are both rotatably connected through the stabilizing rotating rod 8.

[0032] Specifically, by using the adjustable head 701 in conjunction with the stabilizing rotating rod 8 between the adjustable head 701 and the moving block 6, not only can the lifting plate 7 be controlled to rise and fall, but the lifting plate 7 can also be made to move more smoothly up and down.

[0033] In summary, the structure of the main shaft 1 can reduce the weight of the main shaft 1 through the ceramic layer 102, thereby improving the operating efficiency of the motor shaft. Furthermore, the cooperation between the bushing 2, the connecting sleeve 4, and the transmission rod 5 enables precise control of the lubrication effect during motor shaft operation. Additionally, the rotation of the transmission rod 5 can control the height adjustment of the lifting plate 7, thereby controlling the contact of the connecting sleeve 4.

[0034] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A wear-resistant motor shaft for new energy vehicles, characterized in that: The machine includes a shaft body (1), a bushing (2) is provided on the outside of the shaft body (1), a protective cover (3) is provided at both ends of the bushing (2), a connecting sleeve (4) is provided on the inner circumference of the bushing (2), a transmission rod (5) is provided through the inside of the bushing (2), a moving block (6) is provided on the outside of the transmission rod (5), a lifting plate (7) is provided inside the bushing (2), the lifting plate (7) is fixedly connected to the connecting sleeve (4), and the moving block (6) is connected to the lifting plate (7) through a stabilizing rod (8).

2. The wear-resistant motor shaft for new energy vehicles according to claim 1, characterized in that: The main body of the shaft (1) includes an outer layer (103), the inner part of which is wrapped with a ceramic layer (102), and the inner part of which is wrapped with a shaft rod (101).

3. The wear-resistant motor shaft for new energy vehicles according to claim 1, characterized in that: The bushing (2) has a connecting hole (201) on its outer circumference, and the protective cover (3) has a stabilizing wire (302) on its outer circumference. The stabilizing wire (302) extends into the connecting hole (201).

4. The wear-resistant motor shaft for new energy vehicles according to claim 1, characterized in that: Both ends of the connecting sleeve (4) are provided with connectors (401), and the bushing (2) is provided with an adjustment cavity (202) evenly circumferentially inside. The number of adjustment cavities (202) is matched with the number of connectors (401). Lubrication heads (402) are evenly and equidistantly arranged on the outside of the connecting sleeve (4).

5. The wear-resistant motor shaft for new energy vehicles according to claim 4, characterized in that: The number of transmission rods (5) corresponds to the number of adjustment cavities (202). The transmission rods (5) are provided with moving blocks (6) that match the adjustment cavities (202) on their exterior. The moving blocks (6) are slidably connected to the inner wall of the adjustment cavities (202).

6. The wear-resistant motor shaft for new energy vehicles according to claim 1, characterized in that: The lifting plate (7) is fixedly connected to the connecting sleeve (4), and an adjusting head (701) is fixedly connected to the outside of the lifting plate (7). The adjusting head (701) and the moving block (6) are rotatably connected through a stabilizing rotating rod (8).

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