Driving motor shaft for automobile

Abstract

The utility model relates to the technical field of motor shafts, in particular to a driving motor shaft for an automobile, which comprises a mounting shaft, a spline rod assembled at the output end of a motor is integrally fixed on the mounting shaft, a transmission shaft rod is integrally fixed on the mounting shaft, and four air supply grooves are annularly formed between the transmission shaft rod and the mounting shaft; a main shaft body is detachably assembled on the outer side of the transmission shaft rod, and a square rod is integrally fixed to the position, corresponding to the air supply groove, between the main shaft body and the mounting shaft. When the driving motor rotates, the heat dissipation shaft ring is kept fixed, the transmission shaft rod drives the main shaft body to rotate, and power is provided for an automobile motor shaft. The main shaft body rotates to generate high temperature, the heat dissipation air pump is started to compress air, and the air is discharged into the air inlet groove in the inner side of the heat dissipation shaft ring through the heat dissipation air pipe. Air flows through the air inlet groove and enters the air supply groove connected with the screw hole body of the transmission shaft rod, wind power is exhausted to the second heat dissipation screw hole of the main shaft body along the first heat dissipation screw hole, and high-temperature air cooling heat dissipation of the transmission shaft rod and the main shaft body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor shafts, in particular to a driving motor shaft for an automobile. Background Art

[0002] The shaft is a cylindrical object that goes through the middle of a bearing, a wheel, or a gear, but a few are square. The shaft is a mechanical part that supports the rotating parts and rotates with them to transmit motion, torque, or bending moment. It is usually a metal round rod, and each section can have different diameters. The parts that make rotary motion in the machine are installed on the shaft. Among them, the motor shaft is a component that is coaxially arranged inside the motor stator and fixedly installed with the motor stator, and is used to output the motor torque. A Chinese patent discloses a new energy vehicle motor shaft (authorization announcement number CN219139612U). The patented technology discloses a new energy vehicle motor shaft, including a mounting shaft, the inner wall of the mounting shaft is provided with a spline rod, the outer wall of the mounting shaft is fixedly provided with a main shaft, and the inner wall of the mounting shaft and the inner wall of the main shaft are provided with an adjustment device for adjusting the position corresponding to the external connecting member. The beneficial effects of the utility model are: by installing organic and bidirectional threaded rods, limit grooves, limit blocks, threaded tubes, strip grooves, fixed rods, connecting blocks, and openings, the motor is started to drive the annular fixing block connected to the connecting block and the annular mounting block on the annular fixing block to move, and the external parts at different positions are connected by adjusting the changes in the positions of the annular fixing block and the annular mounting block, thereby avoiding the problem that the motor shaft cannot be used because the position of the external parts does not correspond to the connection position of the motor shaft. This patented technology solves the following deficiencies in the prior art: during the installation of the existing motor shaft, because the motor shaft is the power source for driving other parts to rotate, due to the different positions of internal parts of different new energy vehicles, the installation positions on the motor shaft main shaft will also be different. Therefore, the different positions of parts will lead to different motor shaft main shafts. The same motor shaft cannot drive parts in different positions to rotate, resulting in poor compatibility of the motor shaft.

[0003] However, in the prior art, the motor shaft will generate a lot of high temperature when rotating at a high speed, and it is necessary to solve the problem of air cooling and heat dissipation of the motor shaft when the high temperature is generated when rotating at a high speed in the prior art.

[0004] Therefore, those skilled in the art provide a driving motor shaft for an automobile to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides:

[0006] A drive motor shaft for an automobile, comprising: a mounting shaft, a spline rod assembled at the output end of the motor is integrally fixed to the mounting shaft, a transmission shaft rod is integrally fixed to the mounting shaft, and four air supply grooves are annularly formed between the transmission shaft rod and the mounting shaft; a main shaft body is detachably assembled outside the transmission shaft rod, a square rod is integrally fixed at a position corresponding to the air supply groove between the main shaft body and the mounting shaft, and air inlet grooves are annularly and equidistantly formed in the square rod corresponding to the air supply grooves.

[0007] Preferably: arc grooves are formed on all four sides of the transmission shaft rod, and a screw hole body is formed through the inner wall of the middle part of the transmission shaft rod and communicated with the air supply groove.

[0008] Preferably: a plurality of heat dissipation screw holes I are formed through on all four sides of the screw hole body facing the transmission shaft rod.

[0009] Preferably: a heat dissipation shaft ring is rotatably assembled inside the square rod, and a heat dissipation air pipe is connected through the heat dissipation shaft ring.

[0010] Preferably: one end of the heat dissipation air pipe far from the heat dissipation shaft ring is connected with a heat dissipation air pump.

[0011] Preferably: heat dissipation screw holes II are formed through at positions of the main shaft body corresponding to the heat dissipation screw holes I.

[0012] Preferably: a ring-shaped fixing member is detachably assembled outside the main shaft body, locking collar rings are integrally fixed on both side walls of the ring-shaped fixing member, and locking bolts are spirally locked at positions corresponding to the heat dissipation screw holes II on the inner sides of the locking collar rings.

[0013] The locking bolts are spirally locked and penetrate through the inner sides of the heat dissipation screw holes II and the heat dissipation screw holes I;

[0014] And the main shaft body passes through the locking bolts and penetrates through the inner sides of the heat dissipation screw holes II and the heat dissipation screw holes I, so as to lock and fix the main shaft body outside the transmission shaft rod.

[0015] The technical effects and advantages of the present utility model:

[0016] In the present utility model, the mounting shaft is connected with the output end of the drive motor through the spline rod to form the installation of the automobile motor shaft. The heat dissipation air pump and the heat dissipation air pipe are fixedly assembled and connected with the automobile central control system. When the drive motor rotates, the heat dissipation shaft ring remains fixed, and the transmission shaft rod drives the main shaft body to rotate, providing power for the automobile motor shaft. When the main shaft body rotates to generate high temperature, the heat dissipation air pump is started to compress air, and the high-pressure air is discharged into the air inlet groove inside the heat dissipation shaft ring through the heat dissipation air pipe. The air flows through the air inlet groove and enters the air supply groove connected with the screw hole body of the transmission shaft rod, and the wind force is discharged to the heat dissipation screw holes II of the main shaft body along the heat dissipation screw holes I, realizing the high-temperature air-cooling heat dissipation of the transmission shaft rod and the main shaft body. Description of the Drawings

[0017] Figure 1It is a schematic structural diagram of a drive motor shaft for an automobile provided by this application;

[0018] Figure 2 It is a schematic top view structural diagram of a drive motor shaft for an automobile provided by this application;

[0019] Figure 3 It is a schematic exploded structural diagram of a drive motor shaft for an automobile provided by this application;

[0020] Figure 4 It is a schematic cross-sectional structural diagram of a drive shaft rod of a drive motor shaft for an automobile provided by this application;

[0021] Figure 5 It is a schematic cross-sectional structural diagram of a main shaft body of a drive motor shaft for an automobile provided by this application;

[0022] Figure 6 It is a schematic structural diagram of a locking collar of a drive motor shaft for an automobile provided by this application.

[0023] In the figure:

[0024] 1. Mounting shaft; 2. Spline rod; 3. Drive shaft rod; 4. Air supply groove; 5. Arc groove; 6. First heat dissipation screw hole; 7. Screw hole body; 8. Main shaft body; 9. Square rod; 10. Air inlet groove; 11. Second heat dissipation screw hole; 12. Ring-shaped fixing member; 13. Locking collar; 14. Locking bolt; 15. Heat dissipation shaft ring; 16. Heat dissipation air pipe; 17. Heat dissipation air pump. Detailed implementation manners

[0025] The following further elaborates on the present utility model in detail in conjunction with the accompanying drawings and specific implementation manners. The examples of the present utility model are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0026] Embodiment, please refer to Figures 1 to 6 , in this embodiment, a drive motor shaft for an automobile is provided, including: a mounting shaft 1, a spline rod 2 assembled to the output end of the motor is integrally fixed to the mounting shaft 1, a drive shaft rod 3 is integrally fixed to the mounting shaft 1, and four air supply grooves 4 are annularly formed between the drive shaft rod 3 and the mounting shaft 1;

[0027] A main shaft body 8 is detachably assembled on the outer side of the transmission shaft rod 3. A square rod 9 is integrally fixed between the main shaft body 8 and the mounting shaft 1 at a position corresponding to the air supply groove 4. And the square rod 9 is provided with air inlet grooves 10 at equal intervals in a circular shape corresponding to the air supply grooves 4.

[0028] Arc-shaped grooves 5 are formed on all four sides of the transmission shaft rod 3. A screw hole body 7 is formed by penetrating through the inner wall of the middle part of the transmission shaft rod 3 and the air supply groove 4. A plurality of first heat dissipation screw holes 6 are formed by penetrating through the screw hole body 7 and facing all four sides of the transmission shaft rod 3. A heat dissipation shaft ring 15 is rotatably assembled inside the square rod 9, and a heat dissipation air pipe 16 is connected through the heat dissipation shaft ring 15.

[0029] One end of the heat dissipation air pipe 16 far from the heat dissipation shaft ring 15 is connected with a heat dissipation air pump 17. The main shaft body 8 is provided with second heat dissipation screw holes 11 at positions corresponding to the first heat dissipation screw holes 6. A ring-shaped fixing member 12 is detachably assembled on the outer side of the main shaft body 8. Locking collar rings 13 are integrally fixed on both side walls of the ring-shaped fixing member 12, and a locking bolt 14 is screwed and locked on the inner side of the locking collar ring 13 corresponding to the position of the second heat dissipation screw hole 11.

[0030] The locking bolt 14 is screwed and locked through the inside of the second heat dissipation screw hole 11 and the first heat dissipation screw hole 6; and the main shaft body 8 is penetrated through the second heat dissipation screw hole 11 and the first heat dissipation screw hole 6 by the locking bolt 14, so as to lock and fix the main shaft body 8 on the outer side of the transmission shaft rod 3.

[0031] According to the above embodiments, the working principle of the present invention is as follows:

[0032] The mounting shaft 1 is assembled on the output end of the driving motor through the spline rod 2 to form the installation of the motor shaft of the vehicle.

[0033] And the heat dissipation air pump 17 and the heat dissipation air pipe 16 are fixedly assembled, and the heat dissipation air pump 17 is connected to the vehicle control system;

[0034] When the driving motor rotates the mounting shaft 1, the position of the heat dissipation shaft ring 15 is in a fixed state, and the transmission shaft rod 3 drives the main shaft body 8 to rotate to provide power for the motor shaft of the vehicle.

[0035] When the main shaft body 8 rotates, high temperature will be generated. After starting the heat dissipation air pump 17, the heat dissipation air pump 17 compresses the air after starting, and discharges the high-pressure air into the air inlet groove 10 inside the heat dissipation shaft ring 15 through the heat dissipation air pipe 16, so that the air flows through the air inlet groove 10 and is discharged into the air supply groove 4 connected to the screw hole body 7 in the transmission shaft rod 3, and the wind force is discharged to the second heat dissipation screw hole 11 of the main shaft body 8 along the first heat dissipation screw hole 6, so that the transmission shaft rod 3 and its main shaft body 8 can be subjected to high-temperature air-cooling heat dissipation treatment.

[0036] In the present utility model, unless otherwise clearly specified and defined, for example, it may be fixedly connected, may also be detachably connected, or integrated; it may be mechanically connected, may also be electrically connected; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specifically stated and defined, are implemented according to the conventional means in the art.

Claims

1. A driving motor shaft for an automobile, characterized in that: include: The mounting shaft (1) is integrally fixed with a spline rod (2) mounted on the output end of the motor, the mounting shaft (1) is integrally fixed with a transmission shaft (3), and four air supply slots (4) are provided in a ring shape between the transmission shaft (3) and the mounting shaft (1); a main shaft body (8) is detachably mounted on the outer side of the transmission shaft (3), a square rod (9) is integrally fixed at a position corresponding to the air supply slot (4) between the main shaft body (8) and the mounting shaft (1), and the square rod (9) is provided with air inlet slots (10) in a ring shape at equal distances corresponding to the air supply slots (4).

2. The automotive drive motor shaft according to claim 1, characterized in that: The four sides of the transmission shaft (3) are provided with arc grooves (5), and the middle inner wall of the transmission shaft (3) and the air supply groove (4) are connected with a screw hole (7).

3. The automotive drive motor shaft according to claim 2, characterized in that: The screw hole body (7) is provided with a plurality of heat dissipation screw holes (6) on four sides facing the transmission shaft (3).

4. The automotive drive motor shaft according to claim 1, characterized in that: A heat dissipation collar (15) is rotatably mounted on the inner side of the square rod (9), and a heat dissipation air pipe (16) is connected through the heat dissipation collar (15).

5. The driving motor shaft for automobile according to claim 4, characterized in that: One end of the heat dissipation air pipe (16) away from the heat dissipation shaft ring (15) is connected to a heat dissipation air pump (17).

6. The driving motor shaft for an automobile according to claim 1, characterized in that: The main shaft body (8) is provided with a second heat dissipation screw hole (11) at a position corresponding to the first heat dissipation screw hole (6).

7. The automotive drive motor shaft according to claim 1, characterized in that: The outer side of the main shaft body (8) is detachably equipped with an annular fixing member (12), and both side walls of the annular fixing member (12) are integrally fixed with locking collars (13), and the inner side of the locking collar (13) is spirally locked with a locking bolt (14) at a position corresponding to the second heat dissipation screw hole (11).

Images