Novel automobile shock absorber bushing

Abstract

The utility model discloses a novel automobile shock absorber bushing, which belongs to the technical field of automobile shock absorber accessories, and comprises a rubber base body, an inner bushing tube and a clamp spring, the rubber base body is wrapped outside a middle bushing, the outer side of the middle bushing is bonded and fixed with the rubber base body in a vulcanization bonding manner, the rubber base body structurally comprises a bushing body, and the inner bushing tube is sleeved on the bushing body. The sleeve body is a body of a rubber matrix and is made of rubber, the inner side of the sleeve body is coated with a coupling agent, in the implementation process, the sleeve body and the middle lining are connected through a direct bonding technology, and in the implementation process, some components such as polysulfide and acid compound auxiliaries are added into the sleeve body. And the coupling agent is coated on the surface of the rubber to serve as a binding material, and the coupling agent can react with the material of the middle lining as the rubber material is in a high-temperature and high-pressure environment while the lining body is vulcanized, so that the binding is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorber accessories, in particular to a novel automobile shock absorber bushing. Background Art

[0002] Rubber bushings are commonly found in the flexible connection between automobile shock absorbers and frame assemblies. Their structural form mainly installs flexible materials as bushings on the vehicle body, while utilizing the physical properties of the flexible material itself to prevent the shock absorber from running off the track, tilting, and moving during use.

[0003] However, during the use of rubber, due to reasons such as oxidation and fatigue damage of the material, the bushing is prone to aging, wear, cracking and other problems, which shortens the service life of the rubber parts and produces abnormal noises in the shock absorber, resulting in reduced shock absorption effect, and in serious cases, it may cause safety hazards to the moving vehicle. Utility Model Content

[0004] To this end, the utility model provides a novel automobile shock absorber bushing to solve the problems of deviation, tilt, eccentric wear and poor heavy load shock absorption of the bushing during use due to long-term deformation of the rubber layer in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses a novel automobile shock absorber bushing, which is installed on the hinged position of the end of the shock absorber and comprises:

[0007] The rubber matrix has an intermediate bushing installed inside, and the outer side of the intermediate bushing is vulcanized and bonded to the inner side of the rubber matrix;

[0008] The inner liner sleeve is provided with an outer groove on the outer side, the inner wall of the middle sleeve is provided with an inner groove, the inner liner sleeve is installed in the middle sleeve, and the inner groove is aligned with the outer groove;

[0009] The clamping spring is suitable for being sleeved on the outer card slot and embedded between the inner card slot and the outer card slot.

[0010] Furthermore, the rubber matrix comprises:

[0011] The sleeve body has chamfers at both ends;

[0012] A bottom groove is arranged on the outer side of the sleeve body, and a coupling agent is coated on the outer side of the sleeve body;

[0013] The sleeve is made of rubber and is vulcanized. During the heating and pressurizing of the sleeve, the coupling agent reacts with the material of the intermediate sleeve and completes the bonding.

[0014] Furthermore, the inner lining sleeve is made of metal, and the surface of the inner lining sleeve is galvanized.

[0015] Furthermore, the retaining spring includes an arc ring, a fracture and a mounting hole. The arc ring is arranged between the inner slot and the outer slot. The arc ring is provided with a fracture. Two mounting holes are symmetrically arranged on both sides of the fracture.

[0016] Furthermore, the middle bushing is made of nylon.

[0017] Furthermore, after the retaining spring is embedded between the inner retaining groove and the outer retaining groove, a filler is added to the inner retaining groove and the outer retaining groove.

[0018] The utility model has the following advantages:

[0019] The novel automobile shock absorber bushing disclosed by the utility model mainly limits the inner and outer grooves by means of a retaining spring, thereby preventing relative slippage between the middle bushing and the inner bushing sleeve. When the automobile body is running, the composite bushing can effectively suppress the vibration and friction generated between the shock absorber and the frame body, thereby avoiding the problems of deviation, tilting and movement due to uneven force during the vibration of the shock absorber, thereby ensuring the normal use of the shock absorber in a vibrating environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0022] Figure 1 An exploded view of a novel automobile shock absorber bushing provided by the utility model;

[0023] Figure 2 A front view of the composite bushing provided by the utility model;

[0024] Figure 3 The utility model provides Figure 2Sectional view at AA;

[0025] Figure 4 A three-dimensional diagram of the retaining spring provided by the utility model;

[0026] Figure 5 A schematic diagram of the installation of the composite bushing provided by the utility model;

[0027] In the figure: 1 rubber substrate; 11 sleeve body; 12 chamfer; 13 bottom groove; 14 coupling agent; 2 middle bushing; 3 inner bushing; 4 inner slot; 5 retaining spring; 51 arc ring; 52 fracture; 53 mounting hole; 6 outer slot. DETAILED DESCRIPTION

[0028] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Please refer to Figure 1-Figure 4 The utility model discloses a novel automobile shock absorber bushing, such as Figure 5 , installed at the hinged position at the end of the shock absorber, its structure includes a rubber matrix 1, an inner liner sleeve 3 and a retaining spring 5, wherein the rubber matrix 1 is wrapped around the outside of the middle bushing 2, and the outer side of the middle bushing 2 is bonded and fixed to the rubber matrix 1 by vulcanization bonding.

[0030] Specifically, Figure 1 and Figure 2 The structure of the rubber matrix 1 includes a sleeve 11, which is the main body of the rubber matrix 1, and the sleeve 11 is made of rubber. A coupling agent 14 is coated on the inner side of the sleeve 11, and the sleeve 11 is bonded to the intermediate bushing 2 through the coupling agent 14. In this embodiment, the sleeve 11 and the intermediate bushing 2 are connected by a direct bonding process. In the specific implementation process, some components such as polysulfide compounds and acidic compound additives are added to the sleeve 11, and a coupling agent is coated on the rubber surface as a bonding material. When the sleeve 11 is vulcanized, since the rubber material is in a high temperature and high pressure environment, the coupling agent 14 can react with the material of the intermediate bushing 2, thereby completing the bonding.

[0031] It should be noted that the inner liner sleeve 3 and the middle sleeve 2 are in a sliding fit state. Under a vibration environment, the middle sleeve 2 can rotate around the axis of the inner liner sleeve 3, thereby preventing stress concentration problems at the end of the shock absorber and reducing its fatigue damage, so that the shock absorber can be effectively protected under a vibration environment even if its center is offset.

[0032] In this embodiment, the intermediate bushing 2 is made of nylon 66 (i.e., polyhexamethylene adipamide. It is a high molecular compound containing an amide group (-NHCO-) ​​on the main chain, which is a translucent or transparent milky white crystal and is an important engineering resin). As a resin material, nylon 66 can react with the coupling agent 14 under certain conditions. The coupling agent 14 has two functional groups with different properties. Its role in the composite material is that it can react with certain groups on the surface of the reinforcing material and with the matrix resin to form an interface layer between the reinforcing material (i.e., the rubber material in this scheme) and the resin matrix. The interface layer can transfer stress, thereby enhancing the bonding strength between the reinforcing material and the resin, improving the performance of the composite material, and preventing other media from penetrating into the interface, preventing the interface from being oxidized and causing adhesion failure, effectively improving the interface state, and being beneficial to the aging resistance, stress resistance and electrical insulation performance of the product.

[0033] In some embodiments, Figure 2 and Figure 3 , an outer groove 6 is provided on the outer side of the inner sleeve 3, an inner groove 4 is provided on the inner wall of the middle sleeve 2, the inner sleeve 3 is installed in the middle sleeve 2, and the inner groove 4 is aligned with the outer groove 6. On this basis, in order to fix the relative position of the inner sleeve 3 and the middle sleeve 2, a retaining spring 5 is sleeved on the outer groove 6, and the retaining spring 5 is embedded between the inner groove 4 and the outer groove 6, thereby limiting the position of the retaining spring 5 between the nylon sleeve tube and the metal sleeve tube. It should be emphasized in this embodiment that the limit of the retaining spring 5 only rotates around the axis position of the inner sleeve 3, and there will be no lateral movement, so that the piston rod of the shock absorber will not deviate from the center position of the shock absorber, thereby reducing the abnormal wear between the piston rod and the oil seal, extending the service life of the shock absorber, and effectively suppressing the shock absorber from running off, tilting and moving during the vibration process. Even if the shock absorber is in a vibrating environment, it can meet the normal use requirements.

[0034] In this embodiment, as an optional technical solution, industrial vaseline can be applied on the surface of the inner card slot 4 and the outer card slot 6. Then, after the retaining ring 5 is embedded between the inner card slot 4 and the outer card slot 6, filler is added to the inner card slot 4 and the outer card slot 6. The filler is selected from epoxy resin. After the filler is added, the filler fills the inner card slot 4 and the outer card slot 6. At the same time, industrial vaseline is used to prevent the filler from sticking to the inner card slot 4 and the outer card slot 6. This can minimize the amplitude of vibration and improve the durability of the product.

[0035] In some embodiments, Figure 2The rubber matrix 1 includes a sleeve 11 and a bottom groove 13, wherein chamfers 12 are provided at both ends of the sleeve 11, thereby improving the aesthetics of the sleeve 11, making it artistic and decorative, increasing the added value of the product, and helping to reduce stress concentration and improve the structural strength of the sleeve 11. In addition, a bottom groove 13 is provided on the outside of the sleeve 11, and the sleeve 11 can be assembled at the end of the shock absorber by using the bottom groove 13, so that the rubber matrix 1 reduces the vibration and friction generated during the driving process of the automobile body.

[0036] In this embodiment, if Figure 1 The inner liner sleeve 3 is made of metal, and the surface of the inner liner sleeve 3 is galvanized to improve corrosion resistance. In this embodiment, the inner liner sleeve 3 can also be bonded into the middle liner sleeve 2 through a vulcanization bonding process, and the material strength and toughness of the inner liner sleeve 3, the middle liner sleeve 2 and the rubber matrix 1 are gradually improved. The combination of the three can transfer stress well to each other, thereby forming a composite material structure, which can further improve the performance of the product while reducing costs.

[0037] In some embodiments, Figure 4 The retaining ring 5 includes an arc ring 51, a break 52 and a mounting hole 53. The arc ring 51 is arranged between the inner slot 4 and the outer slot 6. The arc ring 51 is provided with a break 52. Two mounting holes 53 are symmetrically arranged on both sides of the break 52 to facilitate the installation of the retaining ring 5 using retaining ring pliers.

[0038] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A new type of automobile shock absorber bushing, installed at the hinged position of the shock absorber end, characterized in that: include: A rubber matrix (1) is provided with an intermediate bushing (2) inside, wherein the outer side of the intermediate bushing (2) is vulcanized and bonded to the inner side of the rubber matrix (1); The inner liner sleeve (3) is provided with an outer groove (6) on its outer side, the inner wall of the intermediate sleeve (2) is provided with an inner groove (4), the inner liner sleeve (3) is installed in the intermediate sleeve (2), and the inner groove (4) is aligned with the outer groove (6); The clamping spring (5) is suitable for being sleeved on the outer clamping slot (6) and embedded between the inner clamping slot (4) and the outer clamping slot (6).

2. The novel automobile shock absorber bushing according to claim 1, characterized in that: The rubber matrix (1) comprises: The sleeve body (11) is provided with chamfers (12) at both ends; A bottom groove (13) is arranged on the outside of the sleeve (11), and a coupling agent (14) is coated on the outside of the sleeve (11); The sleeve (11) is made of rubber and is vulcanized. During the heating and pressurizing process, the coupling agent (14) reacts with the material of the intermediate sleeve (2) to complete the bonding.

3. The novel automobile shock absorber bushing as claimed in claim 1, characterized in that: The inner lining sleeve (3) is made of metal, and the surface of the inner lining sleeve (3) is galvanized.

4. The novel automobile shock absorber bushing as claimed in claim 1, characterized in that: The clamping spring (5) comprises an arc-shaped ring (51), a fracture (52) and a mounting hole (53); the arc-shaped ring (51) is arranged between the inner clamping groove (4) and the outer clamping groove (6); the arc-shaped ring (51) is provided with a fracture (52); and two mounting holes (53) are symmetrically arranged on both sides of the fracture (52).

5. The novel automobile shock absorber bushing as claimed in claim 1, characterized in that: The intermediate bushing (2) is made of nylon 66.

6. The novel automobile shock absorber bushing as claimed in claim 1, characterized in that: After the clamping spring (5) is embedded between the inner clamping groove (4) and the outer clamping groove (6), a filler is added to the inner clamping groove (4) and the outer clamping groove (6).

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