Lightweight new energy automobile half shaft component

Abstract

The utility model relates to the technical field of half shafts, in particular to a light-weight new energy automobile half shaft component which comprises a half shaft body, a hollow long hole, a flange plate, a threaded hole and an anti-skid elastic ring, the hollow long hole is formed in the half shaft body and used for reducing the weight of the half shaft body, the flange plate is arranged at the bottom of the half shaft body, and the threaded hole is formed in the flange plate. The flange plate is used for installing the half shaft body, the threaded hole is formed in the flange plate, and the anti-skid elastic ring is connected into the threaded hole and used for relieving impact of vibration on the flange plate. The hollow long hole is formed in the half shaft body, the two ends of the half shaft body are of solid structures, on the premise that the rigidity and stress of the automobile half shaft are guaranteed, the weight is reduced, the cost is reduced, and the problems that an existing automobile half shaft is a solid shaft, the weight is heavy, the cost is high, and energy conservation and emission reduction of an automobile are affected are solved. Impact caused by vibration can be effectively relieved, bolts are prevented from loosening, and then the maintenance or replacement frequency of the half shaft is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of half shafts, in particular to a lightweight half shaft component for new energy vehicles. Background Art

[0002] The half shaft, also called the drive shaft, is the shaft that connects the differential to the drive wheel. The half shaft is the shaft that transmits torque between the gearbox reducer and the drive wheel. There is a universal joint at the inner and outer ends, which are connected to the reducer gear and the inner ring of the hub bearing through the splines on the universal joint. A qualified half shaft requires that the maximum deflection angle between the metal shaft and the ball seat is within an acceptable range.

[0003] After searching, the Chinese patent announcement number CN219656795U discloses a lightweight new energy vehicle half-axle component, and its technical solution includes: a workbench, a back plate, a positioning ring, a ball seat and a shaft rod, the lower surface of the workbench is provided with a support seat, the upper surface of the workbench is rotatably provided with a turntable, the eccentric part of the turntable is bolted with an eccentric seat, the upper surface of the workbench is bolted with the back plate, the upper end of the back plate is welded with a connecting rod, the end of the connecting rod away from the back plate is welded with a positioning ring, the top of the shaft rod is provided with a ball head, the ball head is rotatably installed in the ball seat, the upper surface of the ball seat is welded with a top convex, the top convex is positioned on the positioning ring, and the bottom end of the shaft rod is positioned on the eccentric seat. The utility model facilitates the detection of the deflection angle of the half shaft through the cooperation between the structures, ensures that the half shaft is evenly stressed during the detection process, and improves the detection accuracy.

[0004] The above patent has the following shortcomings: during the driving of electric vehicles, especially when the road conditions are bad, the bolts on the half-axles of the vehicles are easy to loosen due to large vibrations; in addition, if the rear axle differential clearance is large, it will lead to unstable starting, and the half-axle will be subjected to large force, which will also easily cause the half-axle bolts to loosen or break. In the long run, this will not only require frequent maintenance, which is time-consuming and labor-intensive, affecting the normal driving of the car, but will also cause certain safety hazards and affect personal and property safety. The half-axle component of the lightweight new energy vehicle adopts a solid shaft, which increases the weight of the whole vehicle, has a poor weight reduction effect, increases manufacturing costs, and is not conducive to energy conservation and emission reduction of the vehicle. In view of this, we propose a lightweight half-axle component for new energy vehicles. Utility Model Content

[0005] The purpose of the utility model is to provide a lightweight new energy vehicle half-axle component to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A lightweight new energy vehicle half-axle component, comprising: a half-axle body, a hollow long hole, a flange, a threaded hole and an anti-slip elastic ring;

[0008] The hollow long hole is provided in the half-shaft body to reduce the weight of the half-shaft body;

[0009] The flange is arranged at the bottom of the half-shaft body and is used for installing the half-shaft body;

[0010] The threaded hole is formed on the flange, and the anti-slip elastic ring is connected in the threaded hole to reduce the impact of vibration on the flange.

[0011] Preferably, the top of the semi-shaft body is connected to a first bearing journal, one end of the first bearing journal is connected to a spline body, a spline groove is provided on the spline body, spline teeth are connected to the spline body, and the bottom of the semi-shaft body is connected to a second bearing journal, and the second bearing journal is connected to a flange.

[0012] Preferably, a pressure sensor is connected to the hollow long hole.

[0013] This setting can monitor the torque and pressure applied to the shaft at all times during operation, and transmit the information to the processing chip for conversion into a format, and then send it to the dial in the cab via a signal transmitter for the driver to refer to and observe, thereby ensuring the intuitive working status of the half-axle and improving driving safety.

[0014] Preferably, the cross-section of the hollow long hole is triangular in design.

[0015] This structure is stable, has stronger deformation resistance than the circular structure, and is not easily bent or flattened.

[0016] Preferably, the surface of the spline teeth is provided with a quenching layer.

[0017] Such provision of the quenching layer ensures the hardness of the spline teeth and increases the wear resistance.

[0018] Preferably, both the inner surface and the outer surface of the half-shaft body are sprayed with epoxy resin powder.

[0019] This arrangement not only improves the shaft's torsional and shear resistance, but also improves the shaft's corrosion resistance and extends its service life.

[0020] Preferably, a battery assembly is connected in the hollow long hole.

[0021] This setup provides power to the electronic components.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. A hollow long hole is provided inside the half-axle body, and both ends are solid structures. Under the premise of ensuring the rigidity and force of the automobile half-axle, the weight is reduced and the cost is reduced, and the problem of heavy weight and high cost of solid shafts used in existing automobile half-axles, which affects vehicle energy conservation and emission reduction, is overcome. The cross-section of the hollow long hole is a triangular design, the structure is stable, and the deformation resistance is stronger than that of a circle. It is not easy to be bent or flattened. The quenching layer on the surface of the spline teeth ensures hardness and increases wear resistance. By embedding an anti-slip elastic ring in the threaded hole, an elastic connection between the bolt and the flange can be achieved, which can effectively reduce the impact caused by vibration and prevent the bolts from loosening, thereby reducing the frequency of repair or replacement of the half-axle.

[0024] 2. The pressure sensor can monitor the torque and pressure applied to the shaft at work at all times, and transmit the data to the processing chip for conversion, and then send it to the dial in the cab through the signal transmitter for the driver to refer to and observe, so as to ensure the intuitive working status of the half-shaft, which is beneficial to improving driving safety. The inner and outer surfaces of the half-shaft body are sprayed with epoxy resin powder, which not only improves the torsion and shear resistance of the half-shaft body, but also improves the corrosion resistance of the half-shaft body and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the front view of the utility model;

[0026] Figure 2 It is a schematic diagram of the structure of the utility model;

[0027] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0028] Figure 4 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0029] In the figure: 1. Half-shaft body; 2. Hollow long hole; 3. Flange; 4. Threaded hole; 5. Anti-slip elastic ring; 6. First bearing neck; 7. Spline body; 8. Spline groove; 9. Spline teeth; 10. Second bearing neck; 11. Pressure sensor; 12. Battery assembly. DETAILED DESCRIPTION

[0030] 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.

[0031] The half shaft, also called the drive shaft, is the shaft that connects the differential to the drive wheel. The half shaft is the shaft that transmits torque between the gearbox reducer and the drive wheel. There is a universal joint at the inner and outer ends, which are connected to the reducer gear and the inner ring of the hub bearing through the splines on the universal joint. A qualified half shaft requires that the maximum deflection angle between the metal shaft and the ball seat is within an acceptable range.

[0032] During the driving of electric vehicles, especially when the road conditions are bad, the bolts on the half shafts of the vehicle are easy to loosen due to the large vibration; in addition, if the rear axle differential clearance is large, it will lead to unstable starting, and the half shaft will be subjected to large force, which will also easily cause the half shaft bolts to loosen or break. In the long run, this will not only require frequent maintenance, which is time-consuming and labor-intensive, affecting the normal driving of the car, but also cause certain safety hazards, affecting personal and property safety. The existing half shaft components use solid shafts, which increase the weight of the whole vehicle, have a poor weight reduction effect, increase manufacturing costs, and are not conducive to energy conservation and emission reduction of the vehicle. In view of this, we propose a lightweight half shaft component for new energy vehicles.

[0033] like Figure 1-4 As shown, a lightweight new energy vehicle half-axle component includes: a half-axle body 1, a hollow long hole 2, a flange 3, a threaded hole 4 and an anti-slip elastic ring 5;

[0034] The hollow long hole 2 is provided in the half-shaft body 1 to reduce the weight of the half-shaft body 1;

[0035] The flange 3 is arranged at the bottom of the half-shaft body 1 and is used for installing the half-shaft body 1;

[0036] The threaded hole 4 is formed on the flange 3 , and the anti-skid elastic ring 5 is connected in the threaded hole 4 to reduce the impact of vibration on the flange 3 .

[0037] like Figure 1 As shown, the top of the half-shaft body 1 is connected to a first bearing journal 6, one end of the first bearing journal 6 is connected to a spline body 7, a spline groove 8 is provided on the spline body 7, and a spline tooth 9 is connected to the spline body 7. The bottom of the half-shaft body 1 is connected to a second bearing journal 10, and the second bearing journal 10 is connected to the flange 3.

[0038] like Figure 4 As shown, a pressure sensor 11 is connected inside the hollow long hole 2 , and a battery assembly 12 is connected inside the hollow long hole 2 .

[0039] Specifically, such a setting can always monitor the torque and pressure applied to the shaft during operation, and transmit them to the processing chip for processing and conversion into a format, and then send them to the dial in the cab via a signal transmitter for the driver to refer to and observe, thereby ensuring the intuitiveness of the working status of the half-axle, which is beneficial to improving driving safety. The battery assembly 12 can provide power for electronic components.

[0040] like Figure 3 As shown, the cross section of the hollow elongated hole 2 is designed to be triangular.

[0041] Specifically, the structure is stable, has stronger deformation resistance than a circular structure, and is not easily bent or flattened.

[0042] like Figure 1 As shown, the surface of the spline teeth 9 is provided with a quenching layer.

[0043] Specifically, the quenched layer ensures the hardness of the spline teeth 9 and increases the wear resistance.

[0044] like Figure 1 As shown, both the inner and outer surfaces of the half-shaft body 1 are sprayed with epoxy resin powder.

[0045] Specifically, such a configuration not only improves the torsion resistance and shear resistance of the shaft body, but also improves the corrosion resistance of the shaft body, thereby extending its service life.

[0046] The working principle of the utility model is as follows: a hollow long hole 2 is provided inside the half-axle body 1, and both ends are solid structures. Under the premise of ensuring the rigidity and force of the automobile half-axle, the weight is reduced and the cost is reduced, and the problem of heavy weight and high cost of the existing automobile half-axle adopting a solid shaft that affects the energy conservation and emission reduction of the vehicle is overcome. The cross-section of the hollow long hole 2 is a triangular design, the structure is stable, and the deformation resistance is stronger than that of a circular one. It is not easy to be bent or flattened. The quenching layer on the surface of the spline tooth 9 ensures hardness and increases wear resistance. By embedding an anti-slip elastic ring 5 in the threaded hole 4, the elastic connection between the bolt and the flange 3 can be achieved. The connection can effectively reduce the impact caused by vibration, prevent the bolts from loosening, and thus reduce the frequency of repair or replacement of the half-axle. The pressure sensor 11 can always monitor the torque and pressure applied to the shaft during operation, and transmit them to the processing chip for processing and conversion. After that, the signal transmitter is sent to the dial in the cab for the driver's reference and observation, thereby ensuring the visualization of the working status of the half-axle, which is beneficial to improving driving safety. The inner and outer surfaces of the half-axle main body 1 are sprayed with epoxy resin powder, which not only improves the torsional and shear resistance of the half-axle main body 1, but also improves the corrosion resistance of the half-axle main body 1 and extends its service life.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lightweight new energy vehicle half-axle component, characterized in that: include: A half-shaft body (1), a hollow long hole (2), a flange (3), a threaded hole (4) and an anti-slip elastic ring (5); The hollow long hole (2) is provided in the half-shaft body (1) and is used to reduce the weight of the half-shaft body (1); The flange (3) is arranged at the bottom of the half-shaft body (1) and is used to install the half-shaft body (1); The threaded hole (4) is provided on the flange (3); the anti-slip elastic ring (5) is connected in the threaded hole (4) to reduce the impact of vibration on the flange (3); the top of the semi-shaft body (1) is connected to a first bearing journal (6); one end of the first bearing journal (6) is connected to a spline body (7); a spline groove (8) is provided on the spline body (7); a spline tooth (9) is connected to the spline body (7); the bottom of the semi-shaft body (1) is connected to a second bearing journal (10); the second bearing journal (10) is connected to the flange (3); a quenching layer is provided on the surface of the spline tooth (9); the inner surface and the outer surface of the semi-shaft body (1) are sprayed with epoxy resin powder.

2. The lightweight new energy vehicle half-axle component according to claim 1 is characterized in that: A pressure sensor (11) is connected inside the hollow long hole (2).

3. The lightweight new energy vehicle half-axle component according to claim 1 is characterized in that: The cross section of the hollow long hole (2) is designed to be triangular.

4. The lightweight new energy vehicle half-axle component according to claim 1 is characterized in that: A battery assembly (12) is connected inside the hollow long hole (2).

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