Polyurethane outer spherical bushing structure pull rod assembly and vehicle with same

By adopting a polyurethane spherical bushing structure in the car tie rod, the high friction force of the spherical design and the friction reduction effect of the lubrication system are used to solve the problem of insufficient torsion resistance during torsion by the existing car tie rod, achieving a longer service life and better driving performance.

CN222921327UActive Publication Date: 2025-05-30YUHUAN XIEJIA AUTO PARTS CO LTD
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Patent Information

Application Number
CN202421838739.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-30
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The existing automobile lever swing arm bushings have insufficient torsion resistance and poor deformation ability when twisting, resulting in fatigue and fracture of production materials and reducing service life.

Method used

The polyurethane outer spherical bushing structure tie rod assembly is adopted. Through the spherical design of the spherical placement part and the spherical bushing, the contact friction force is maximized, the protection effect is increased during torsion, and the friction resistance is reduced through the lubricating oil passage and oil nozzle.

Benefits of technology

It significantly improves the torsion resistance of the tie rod, extends service life, improves driving performance and handling, while reducing wear and energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field related to automobile accessories, in particular to a polyurethane pull rod assembly with an outer spherical bushing structure and a vehicle with the polyurethane pull rod assembly. The polyurethane pull rod assembly with the outer spherical bushing structure comprises a pull rod, a connecting part is arranged on the pull rod, a spherical placing part is arranged in the connecting part, a spherical bushing is arranged on the spherical placing part, a connecting hole is formed in the spherical bushing, and an inner pipe is arranged in the connecting hole; due to the fact that the spherical containing part and the spherical lining are both in a spherical shape, the contact friction force is maximized through the outer spherical design, matching between the spherical containing part and the spherical lining is easily and powerfully protected when torsion is borne, the service life is longer, and the driving performance and controllability can be better highlighted.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a polyurethane outer spherical bushing structure pull rod assembly and a vehicle with the same. Background Art

[0002] At present, the anti-torsion force of the pull rod swing arm bushing on the market is insufficient, and the deformation ability is poor. When twisted, the twisted part is likely to cause fatigue fracture of the production material, thus reducing the service life. Content of the Utility Model

[0003] The purpose of the utility model is to provide a polyurethane outer spherical bushing structure pull rod assembly with strong torsion resistance.

[0004] The purpose of the utility model is achieved as follows: A polyurethane outer spherical bushing structure pull rod assembly and a vehicle with the same include a pull rod. A connecting part is provided on the pull rod. A spherical placement part is provided inside the connecting part. A spherical bushing is provided on the spherical placement part. A connecting hole is provided inside the spherical bushing. An inner tube is provided inside the connecting hole.

[0005] Preferably, connecting protrusions are provided at both ends of the inner tube. The connecting protrusions are connected with connecting pieces. A connecting groove is provided inside the connecting pieces. The bottom of the connecting groove fits with the top of the connecting protrusions.

[0006] Preferably, grooves are provided on both sides of the spherical placement part.

[0007] Preferably, a lubricating oil channel is provided in the middle of the outer side of the spherical bushing. An oil nozzle is provided on the connecting part. An oil channel is provided inside the connecting part. One end of the oil channel is connected with the oil nozzle, and the other end of the oil channel is connected with the placement part.

[0008] In addition, the utility model also provides a vehicle, which includes the above-mentioned polyurethane outer spherical bushing structure pull rod assembly.

[0009] The prominent and beneficial technical effects of the utility model compared with the prior art are:

[0010] 1. First, install the spherical bushing at the spherical placement part inside the connecting part of the pull rod, and then install the inner tube in the connecting hole inside the spherical bushing. Since the shapes of both the spherical placement part and the spherical bushing are spherical, the outer spherical design maximizes the contact friction force, enabling their cooperation to be strongly protected easily when bearing torsion, with a longer service life and better highlighting driving performance and controllability. Description of the Drawings

[0011] Figure 1 is the structural schematic diagram of the utility model;

[0012] Figure 2 is the cross-sectional view of the connecting part of the utility model.

[0013] Figure 3 This is a schematic structural view of the spherical bushing of the present utility model.

[0014] Figure 4 This is one of the schematic structural views of the inner tube of the present utility model.

[0015] Figure 5 This is another schematic structural view of the inner tube of the present utility model.

[0016] Figure 6 This is a schematic structural view of the connecting piece of the present utility model.

[0017] In the figure: 1 pull rod, 2 connecting part, 3 spherical placement part, 4 spherical bushing, 5 connecting hole, 6 inner tube, 7 connecting protrusion, 8 connecting piece, 9 connecting groove, 10 groove, 11 lubricating oil channel, 12 oil nozzle, 13 oil channel. Specific embodiments

[0018] The following further describes the present utility model with specific embodiments.

[0019] As Figures 1 to 6 shown, a polyurethane outer spherical bushing structure pull rod assembly and a vehicle having the same include a pull rod 1, a connecting part 2 is provided on the pull rod 1, a spherical placement part 3 is provided in the connecting part 2, a spherical bushing 4 is provided on the spherical placement part 3, a connecting hole 5 is opened in the spherical bushing 4, and an inner tube 6 is provided in the connecting hole 5.

[0020] Both ends of the inner tube 6 are provided with connecting protrusions 7, the connecting protrusions 7 are connected with a connecting piece 8, a connecting groove 9 is opened in the connecting piece 8, and the bottom of the connecting groove 9 is in fit with the top of the connecting protrusion 7.

[0021] There are two types of inner tubes 6. Under normal circumstances, the inner tube 6 as in Figure 4 is installed with the spherical bushing 4. If the need for lengthening occurs, the inner tube 6 as in Figure 5 will be used. Then, connecting protrusions 7 will be provided on both sides of the inner tube 6, and they will be cooperatively connected through the connecting piece 8. The top of the connecting protrusion 7 will abut against the connecting groove 9 in the connecting piece 8.

[0022] Both sides of the spherical placement part 3 are provided with grooves 10. Since the spherical placement part 3 is spherical, by providing these grooves 10, it is convenient to install the spherical bushing 4 into the spherical placement part 3, and it will not cause the spherical bushing 4 to abut against the inside of the connecting part 2 and be inconvenient to enter the spherical placement part 3.

[0023] A lubricating oil channel 11 is opened in the middle of the outer side of the spherical bushing 4. An oil nozzle 12 is provided on the connecting part 2, and an oil channel 13 is opened in the connecting part 2. One end of the oil channel 13 is connected with the oil nozzle 12, and the other end of the oil channel 13 is connected with the placement part 3.

[0024] The nozzle 12 and the connecting part 2 pour lubricating oil through the nozzle 12. The lubricating oil enters the oil passage 13 inside the connecting part 2, and then flows to the lubricating oil passage 11 on the spherical bushing 4. The lubricating oil plays a role in reducing friction and wear, reducing the frictional resistance to save energy, reducing wear to extend the mechanical life, and improving economic benefits; moreover, it can disperse stress and buffer, disperse the load, relieve impact and shock absorption.

[0025] Installation method:

[0026] First, install the spherical bushing 4 at the spherical placement part 3 inside the connecting part 2 of the pull rod 1, and then install the inner tube 6 in the connecting hole 5 inside the spherical bushing 4. Since the shapes of both the spherical placement part 3 and the spherical bushing 4 are spherical, there will be a strong torsional force between their fits.

[0027] In addition, the present utility model also provides a vehicle, including the above-mentioned polyurethane outer spherical bushing structure pull rod assembly, so it also has corresponding technical effects.

[0028] The above embodiments are only the preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A polyurethane outer spherical bushing structure tie rod assembly, comprising a tie rod (1), characterized in that: The pull rod (1) is provided with a connecting portion (2), a spherical placement portion (3) is provided inside the connecting portion (2), a spherical bushing (4) is provided on the spherical placement portion (3), a connecting hole (5) is provided inside the spherical bushing (4), and an inner tube (6) is provided inside the connecting hole (5).

2. The polyurethane outer spherical bushing structure tie rod assembly according to claim 1, characterized in that: Both ends of the inner tube (6) are provided with connecting protrusions (7), the connecting protrusions (7) are connected to connecting pieces (8), a connecting groove (9) is provided in the connecting piece (8), and the bottom of the connecting groove (9) is in contact with the top of the connecting protrusion (7).

3. The polyurethane outer spherical bushing structure tie rod assembly according to claim 2, characterized in that: Grooves (10) are provided on both sides of the spherical placement portion (3).

4. The polyurethane outer spherical bushing structure tie rod assembly according to claim 3, characterized in that: A lubricating oil passage (11) is provided in the middle of the outer side of the spherical bushing (4), an oil nozzle (12) is provided on the connecting portion (2), an oil passage (13) is provided in the connecting portion (2), one end of the oil passage (13) is connected to the oil nozzle (12), and the other end of the oil passage (13) is connected to the placement portion (3).

5. A vehicle, characterized in that: The vehicle comprises the polyurethane outer spherical bushing structure tie rod assembly as described in any one of claims 1 to 4.