High-performance wear-resistant sheet hinge structure

Abstract

The utility model discloses a high-performance wear-resistant sheet hinge structure. The device comprises a fixed bracket and a rotating bracket, the damping device is characterized in that shaft pins penetrate through mounting holes in the two sides of the fixed support and the two sides of the rotating support respectively and are symmetrically arranged, the pin shafts are sleeved with damping assemblies, and metal elastic pieces, the rotating support, stainless steel wear-resisting pieces, the fixed support, copper wear-resisting pieces and metal gaskets are sequentially limited from the shaft body ends of the shaft pins to the shaft body tail ends of the shaft pins. According to the damping assembly provided by the scheme, hovering of the rotating support can be achieved, the stainless steel wear-resisting pieces are not prone to deformation, the copper wear-resisting pieces are good in ductility, and the service life can be prolonged while the product performance is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile accessories, and in particular to a high-performance wear-resistant hinge structure. Background Art

[0002] Nowadays, cars have almost become a regular means of transportation for families, and people have higher and higher requirements for the beauty and quality of cars. When producing vehicles, armrest boxes are usually set on the auxiliary instrument panel of the vehicle to provide support for the elbows of passengers and also serve as storage boxes.

[0003] The hinge structure of the armrest box is the key to the opening and hovering of the armrest box. At present, in the structure of the mainstream damping and hovering armrest box, the wear-resistant sheet of POM material is used to increase the friction and realize the hovering of the hinge structure. The disadvantage is that POM is a plastic material, which is prone to thermal expansion and contraction in extremely cold / hot environments, which can easily reduce the performance of the product and reduce the friction. At the same time, during the opening / closing process, repeated friction will cause the deformed POM wear-resistant sheet to crack, greatly reducing or even losing the friction.

[0004] Therefore, it is necessary to invent a hinge structure that can realize the hovering function, avoid the influence of thermal expansion and contraction, and increase the service life of the overall structure. Summary of the invention

[0005] In order to solve the above problems, this solution provides a high-performance wear-resistant hinge structure.

[0006] To achieve the above purpose, the technical solution adopted in this scheme is: a high-performance wear-resistant sheet hinge structure, including a fixed bracket and a rotating bracket: the fixed bracket and the rotating bracket are provided with a limit shaft pin in the mounting holes on both sides, the damping component is sleeved on the pin shaft, and the shaft body of the shaft pin includes a metal spring sheet, a rotating bracket, a stainless steel wear-resistant sheet, a fixed bracket, a copper wear-resistant sheet and a metal gasket in sequence;

[0007] The surface roughness of the stainless steel wear-resistant sheet and the copper wear-resistant sheet is ≤0.4 μm.

[0008] Furthermore, the surface roughness of the stainless steel wear-resistant sheet and the copper wear-resistant sheet is 0.3 μm.

[0009] Furthermore, the stainless steel wear-resistant sheet is made of 304 stainless steel.

[0010] Furthermore, the copper wear-resistant sheet is made of brass.

[0011] Furthermore, the rear end of the shaft is locked by a nut.

[0012] In summary, this solution has the following advantages:

[0013] The damping assembly provided in this solution can realize the suspension of the rotating bracket. The stainless steel wear-resistant sheet is not easy to deform, and the copper wear-resistant sheet has good ductility, both of which can extend the service life while ensuring product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a high performance wear-resistant sheet hinge structure;

[0015] Figure 2 It is a schematic diagram of the damping component part.

[0016] in:

[0017] 1. Fix the bracket;

[0018] 2. Rotate the bracket;

[0019] 3. Axle pin;

[0020] 4. Damping assembly; 41. Metal spring; 42. Stainless steel wear-resistant sheet; 43. Copper wear-resistant sheet; 44. Metal gasket; 45. Nut. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Embodiment 1:

[0023] A high-performance wear-resistant plate hinge structure, as shown in the figure, includes a fixed bracket 1 and a rotating bracket 2.

[0024] The fixing bracket 1 is the fixed end of the hinge structure, and in the entire armrest box structure, it is used to be rigidly connected to the vehicle body.

[0025] The rotating bracket 2 is connected to the armrest box cover in the armrest box structure and serves as a rotating end.

[0026] As shown in the figure, the shaft of the shaft pin 3 passes through the mounting holes on both sides of the fixed bracket 1 and the rotating bracket 2, and the damping component 4 is limited at the same time;

[0027] That is, the shaft pin 3 is the rotating shaft of the rotating bracket 2 and the fixed bracket 1 and has a bilaterally symmetrical structure.

[0028] As shown in the figure, from the shaft end to the shaft tail end of the shaft pin 3, the metal spring piece 41, the rotating bracket 2, the stainless steel wear-resistant sheet 42, the fixed bracket 1, the copper wear-resistant sheet 43 and the metal gasket 44 are sequentially limited.

[0029] One end of the shaft pin 3 limits the fixed bracket 1 and the rotating bracket 2 through the end of the shaft body, and the locking method of the rear end of the shaft body can be a nut locking or a bayonet;

[0030] In this embodiment, the rear end of the shaft is locked by a nut 45 .

[0031] Specifically, when the damping assembly 4 is locked and connected, the friction force of the friction plate can realize the suspension of the rotating bracket 2 and provide a damping feeling.

[0032] In the prior art, in order to increase the friction force to achieve the hovering of the rotating bracket 2, POM material is usually used as a wear-resistant sheet in the structure. However, POM is a plastic material. In some special areas, especially in extremely cold or hot areas, it is easy to deform due to thermal expansion and contraction, which greatly reduces the performance of the product.

[0033] In the high temperature performance test, the attenuation value of the POM friction plate is about 15%, while the attenuation value of the metal friction plate is about 2%.

[0034] In the structural setting of this solution, stainless steel wear-resistant sheets 42 and copper wear-resistant sheets 43 are used as wear-resistant sheets, which can avoid the negative effects caused by thermal expansion and contraction.

[0035] It is worth mentioning that the stainless steel wear-resistant sheet 42 arranged on the inner side is made of stainless steel 304, and its thermal expansion coefficient is much smaller than that of wear-resistant sheets made of POM or other metal materials.

[0036] In the extremely cold or hot environment that the armrest box may encounter, it is not easy to deform, which can ensure the performance of the product and extend its service life.

[0037] At the same time, the copper wear-resistant sheet 43 is riveted on the outside, which will inevitably produce variables. In the present embodiment, the copper wear-resistant sheet 43 is made of brass. The ductility of brass just meets the requirements of the present solution and can avoid cracking and the like. Like the stainless steel wear-resistant sheet 42, it can extend the service life while ensuring product performance.

[0038] Surface roughness has an important influence on the wear resistance of parts. In the structural setting of this scheme, the stainless steel wear-resistant sheet 42 and the copper wear-resistant sheet 43 are processed by CNC, and the surface roughness is ≤0.4μm.

[0039] If the surface roughness is too large, the uneven parts between the contact surfaces will collide with each other, causing more wear and reducing the service life. When the surface roughness is small to a certain extent, since the actual contact area during contact becomes smaller, but the molecular force between the surfaces does not become smaller, the load will be concentrated on the smaller actual contact area, forming a high-pressure area, making the surface pressure at the contact point far greater than other areas, thereby reducing surface deformation and wear and extending the service life of the parts.

[0040] In this embodiment, the surface roughness of the stainless steel wear-resistant sheet 42 and the copper wear-resistant sheet 43 is 0.3 μm.

[0041] In order to prevent the stainless steel wear-resistant sheet 42 from reducing its friction due to wear during long-term use, a metal spring sheet 41 is further provided in the present solution. The metal spring sheet 41 can increase elasticity and prevent the stainless steel wear-resistant sheet 42 from wearing after long-term use.

[0042] In summary, the damping assembly 4 provided in the present solution provided by the present application can realize the suspension of the rotating bracket 2, wherein the stainless steel wear-resistant sheet 42 is not easy to deform, and the copper wear-resistant sheet 43 has good ductility, both of which can extend the service life while ensuring product performance.

[0043] The above implementation is only to illustrate the technical concept and features of this solution, and its purpose is to enable people familiar with this technology to understand the content of this solution and implement it accordingly, and it cannot be used to limit the protection scope of this solution. Any equivalent transformation or modification made according to the spirit of this solution should be included in the protection scope of this solution.

[0044] In the description of this scheme, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0045] For those skilled in the art, the specific meanings of the above terms in this solution can be understood according to specific circumstances.

[0046] It should be understood that the above-mentioned embodiments are merely illustrative and not restrictive. Without departing from the basic principles of the present solution, various obvious or equivalent modifications or substitutions that can be made by technicians in this field to the above details will be included in the protection scope of the present solution.

Claims

1. A high performance wear-resistant hinge structure, characterized in that: It comprises a fixed bracket (1) and a rotating bracket (2); the characteristics are as follows: the shaft pin (3) passes through the limiting shaft pin (3) in the mounting holes on both sides of the fixed bracket (1) and the rotating bracket (2), respectively, and is symmetrically arranged; the damping component (4) is sleeved on the shaft pin (3); and the shaft end of the shaft pin (3) to the shaft tail end sequentially limit the metal spring sheet (41), the rotating bracket (2), the stainless steel wear-resistant sheet (42), the fixed bracket (1), the copper wear-resistant sheet (43) and the metal gasket (44); The surface roughness of the stainless steel wear-resistant sheet (42) and the copper wear-resistant sheet (43) is ≤0.4 μm.

2. The high performance wear-resistant sheet hinge structure according to claim 1 is characterized in that: The surface roughness of the stainless steel wear-resistant sheet (42) and the copper wear-resistant sheet (43) is 0.3 μm.

3. The high performance wear-resistant sheet hinge structure according to claim 2 is characterized in that: The stainless steel wear-resistant sheet (42) is made of 304 stainless steel.

4. The high performance wear-resistant sheet hinge structure according to claim 2 is characterized in that: The copper wear-resistant sheet (43) is made of brass.

5. The high performance wear-resistant sheet hinge structure according to claim 1, characterized in that: The rear end of the shaft is locked by a nut (45).

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