High-precision positioning automobile universal coupling connecting structure

Abstract

The utility model relates to the technical field of automobile production, in particular to a high-precision positioning automobile universal coupling connecting structure which comprises a universal coupling, one end of the universal coupling is fixedly connected with a hub motor connecting mechanism, and the other end of the universal coupling is fixedly connected with a transmission shaft connecting mechanism. Through a first connecting flange plate and a second connecting flange plate arranged on the hub motor connecting mechanism, a centering groove formed in one side of the first connecting flange plate and a centering boss fixedly arranged on one side of the second connecting flange plate are mutually embedded, so that the first connecting flange plate and the second connecting flange plate are automatically centered; and then fixing bolts matched with the first connecting flange plate and the second connecting flange plate are adopted to fixedly mount the first connecting flange plate and the second connecting flange plate, so that the axis of the linkage end of the hub motor and the axis of the linkage end of the universal coupling are kept coaxial, the mounting error is effectively reduced, the positioning precision is improved, and the linkage stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to a high-precision positioning automobile universal coupling connection structure. Background Technology

[0002] Universal joints in automobiles primarily function to transmit power between different shafts. They can accommodate changes in angle and position between the drive shaft and components such as the drive axle and hub motors due to variations in vehicle driving conditions, ensuring smooth and reliable power transmission. They can also compensate for certain installation errors and shaft displacements, enabling the vehicle to operate normally under various road conditions, ensuring a reasonable power distribution to each drive wheel, and improving the overall performance and driving stability of the vehicle.

[0003] As disclosed in the patent announcement number CN211371075U, a high-performance universal coupling includes a single universal coupling and a telescopic hydraulic connecting shaft. The two ends of the telescopic hydraulic connecting shaft are fixedly connected to the single universal couplings. The connecting shaft between the single universal couplings is designed as a hydraulic telescopic structure, allowing free adjustment of the universal coupling's operating length and solving the problem of needing to replace the universal coupling due to insufficient operating length. Furthermore, a lubricating oil dripper is installed on the outer wall of the telescopic hydraulic connecting shaft, allowing lubricating oil to be dripped between the first and second telescopic rods during use, reducing friction and protecting each telescopic rod. A vibration-damping spring is installed on the outer wall of the cross shaft to reduce mechanical vibration generated during use, buffering the single universal couplings and connecting shafts, preventing violent collisions between the components of the universal coupling, thus extending the service life of the parts. This high-performance universal coupling has a simple structure, is easy to use, and has stable performance.

[0004] However, this utility model lacks a stable connection structure with the car's drive shaft and hub motor, which makes it difficult to ensure the stability of power transmission during the car's movement. To address this, we propose a high-precision positioning universal coupling connection structure for automobiles, which solves the problem of the lack of a stable connection structure with the car's drive shaft and hub motor, improves the practical effect of the utility model, and enhances the efficiency and stability of power transmission. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision positioning automotive universal coupling connection structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-precision positioning automotive universal coupling connection structure includes a universal coupling, one end of which is fixedly connected to a hub motor connection mechanism, and the other end of which is fixedly connected to a drive shaft connection mechanism.

[0008] Preferably, the hub motor connection mechanism includes a first connecting flange and a second connecting flange. The first connecting flange has a centering groove inside. The second connecting flange has a centering boss fixedly provided on the side near the first connecting flange. The side of the first connecting flange away from the second connecting flange is fixedly connected to one end of a universal coupling. The second connecting flange is fixedly provided on one side of the hub motor. The centering boss has a frustum-shaped structure with rounded corners at its top. The centering boss and the centering groove fit together.

[0009] Preferably, the transmission shaft connecting mechanism has a third connecting flange and a fourth connecting flange. A locking block is fixedly provided on one side of the third connecting flange, and a locking groove adapted to the locking block is opened on one side of the fourth connecting flange. The side of the third connecting flange away from the locking block is fixedly connected to the other end of the universal coupling, and the side of the fourth connecting flange away from the locking groove is fixedly connected to the transmission shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This high-precision positioning automotive universal coupling connection structure, through a hub motor connection mechanism, uses a first connecting flange and a second connecting flange. The centering groove on one side of the first connecting flange and the centering boss fixed on one side of the second connecting flange engage with each other, so that the first connecting flange and the second connecting flange are automatically centered. This keeps the axis of the hub motor and the linkage end of the universal coupling coaxial, effectively reducing installation errors, improving positioning accuracy, and ensuring the stability of linkage.

[0012] 2. This high-precision positioning automotive universal coupling connection structure uses a third and fourth connecting flange set in the drive shaft connection mechanism. A locking block on one side of the third connecting flange and a locking groove on one side of the fourth connecting flange are interlocked and locked together. The design of the locking block and the locking groove not only facilitates quick matching of the third and fourth connecting flanges by installers, but also effectively restricts the relative rotation between components, so that the coupling maintains an accurate position during transmission, which is conducive to ensuring the stability of power transmission between the drive shaft and the universal coupling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural diagram of the hub motor connection mechanism of this utility model;

[0015] Figure 3 This is a partial structural diagram of the transmission shaft connection mechanism of this utility model;

[0016] Figure 4 This is a side view of the hub motor connection mechanism of this utility model.

[0017] In the diagram: 100, universal coupling; 200, first connecting flange; 201, second connecting flange; 202, centering groove; 203, centering boss; 204, hub motor; 300, third connecting flange; 301, fourth connecting flange; 302, locking block; 303, locking groove; 304, drive shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0020] A high-precision positioning automotive universal coupling connection structure includes a universal coupling 100, one end of which is fixedly connected to a hub motor connection mechanism, and the other end of which is fixedly connected to a drive shaft connection mechanism.

[0021] In this embodiment, preferably, the hub motor connection mechanism includes a first connecting flange 200 and a second connecting flange 201. The first connecting flange 200 has a centering groove 202 inside. The second connecting flange 201 has a centering boss 203 fixedly disposed on the side near the first connecting flange 200. The side of the first connecting flange 200 away from the second connecting flange 201 is fixedly connected to one end of the universal coupling 100. The second connecting flange 201 is fixedly disposed on one side of the hub motor 204. The centering boss 203 has a frustum-shaped structure with rounded corners at its top. The centering boss 203 and the centering groove 202 fit together, thus being configured through the hub motor connection mechanism. The first connecting flange 200 and the second connecting flange 201 are connected by fitting a centering groove 202 on one side of the first connecting flange 200 with a centering boss 203 fixed on one side of the second connecting flange 201. This allows the first connecting flange 200 and the second connecting flange 201 to automatically center. Then, the first connecting flange 200 and the second connecting flange 201 are fixed together with fixing bolts that match the first connecting flange 200 and the second connecting flange 201. This ensures that the hub motor 204 and the linkage end axis of the universal coupling 100 are kept coaxial, effectively reducing installation errors, improving positioning accuracy, and ensuring the stability of the linkage.

[0022] In this embodiment, preferably, the transmission shaft connecting mechanism includes a third connecting flange 300 and a fourth connecting flange 301. A locking block 302 is fixedly disposed on one side of the third connecting flange 300, and a locking groove 303 adapted to the locking block 302 is provided on one side of the fourth connecting flange 301. The side of the third connecting flange 300 away from the locking block 302 is fixedly connected to the other end of the universal coupling 100, and the side of the fourth connecting flange 301 away from the locking groove 303 is fixedly connected to the transmission shaft 304. The third connecting flange 300 and the fourth connecting flange 301 are connected through the transmission shaft connecting mechanism. The plate 301 engages with the locking block 302 on one side of the third connecting flange 300 and the locking groove 303 on one side of the fourth connecting flange 301. The design of the locking block 302 and the locking groove 303 not only facilitates quick matching of the third connecting flange 300 and the fourth connecting flange 301 by installers, but also effectively restricts the relative rotation between the components, so that the coupling maintains an accurate position during transmission. This helps to ensure the stability of power transmission between the drive shaft 304 and the universal coupling 100, reduce vibration and noise, and improve the comfort of the vehicle.

[0023] In this embodiment, a high-precision positioning automotive universal coupling connection structure is used by firstly connecting a first connecting flange 200 and a second connecting flange 201 provided by the hub motor connection mechanism. The centering groove 202 on one side of the first connecting flange 200 and the centering boss 203 fixedly provided on one side of the second connecting flange 201 are fitted together, so that the first connecting flange 200 and the second connecting flange 201 are automatically centered. Then, the first connecting flange 200 and the second connecting flange 201 are fixedly installed together using fixing bolts that match the first connecting flange 200 and the second connecting flange 201. This keeps the axis of the hub motor 204 and the linkage end of the universal coupling 100 coaxial, effectively reducing installation errors, improving positioning accuracy, and ensuring the stability of linkage. The third connecting flange 300 and the fourth connecting flange 301, which are connected by the drive shaft connection mechanism, engage and lock together with the locking block 302 on one side of the third connecting flange 300 and the locking groove 303 on one side of the fourth connecting flange 301. The design of the locking block 302 and the locking groove 303 not only facilitates the quick matching of the third connecting flange 300 and the fourth connecting flange 301 by the installers, but also effectively restricts the relative rotation between the components, so that the coupling maintains an accurate position during transmission. This helps to ensure the stability of power transmission between the drive shaft 304 and the universal coupling 100, reduce vibration and noise, and improve the comfort of the vehicle.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision positioning automobile universal coupling connection structure, comprising a universal coupling (100), characterized in that: One end of the universal coupling (100) is fixedly connected to a hub motor connection mechanism, and the other end is fixedly connected to a drive shaft connection mechanism. The hub motor connection mechanism includes a first connecting flange (200) and a second connecting flange (201). The first connecting flange (200) has a centering groove (202) inside, and the second connecting flange (201) has a centering boss (203) fixedly provided on the side of the second connecting flange (200) near the first connecting flange (200). The transmission shaft connecting mechanism has a third connecting flange (300) and a fourth connecting flange (301). A locking block (302) is fixedly provided on one side of the third connecting flange (300), and a locking groove (303) adapted to the locking block (302) is provided on one side of the fourth connecting flange (301).

2. The high-precision positioning automobile universal coupling connection structure according to claim 1, characterized in that: The first connecting flange (200) is fixedly connected to one end of the universal coupling (100) on the side away from the second connecting flange (201).

3. The high-precision positioning automobile universal coupling connection structure according to claim 2, characterized in that: The second connecting flange (201) is fixedly mounted on one side of the hub motor (204).

4. The high-precision positioning automobile universal coupling connection structure according to claim 1, characterized in that: The centering boss (203) has a frustum-shaped structure with rounded corners at the top. The centering boss (203) and the centering groove (202) fit together.

5. The high-precision positioning automobile universal coupling connection structure according to claim 1, characterized in that: The third connecting flange (300) is fixedly connected to the other end of the universal coupling (100) on the side away from the locking block (302).

6. The high-precision positioning automobile universal coupling connection structure according to claim 1, characterized in that: The fourth connecting flange (301) is fixedly connected to the drive shaft (304) on the side away from the slot (303).

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