Damping shaft

Abstract

The utility model relates to the technical field of damping parts, in particular to a damping shaft which comprises an inner pipe and an outer pipe which are coaxially arranged, silica gel is vulcanized between the inner pipe and the outer pipe, and 3-6 process blind holes are evenly distributed in the two ends of the silica gel around the inner pipe by a circle. The shock absorption shaft is simple in structure, convenient to use, capable of absorbing shock after being installed, capable of providing double functions of supporting and shock absorption, attractive and practical.

Description

Technical Field

[0001] This utility model relates to the field of shock-absorbing components, and in particular to a shock-absorbing shaft. Background Technology

[0002] Some components that need to be flipped, such as the cab of a car which needs to be flipped forward for maintenance, require hinged installation. However, due to the complex and harsh operating conditions of automobiles, vibration reduction measures need to be taken for the cab to improve the driving experience, especially for the hinged parts of the cab. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a shock-absorbing shaft. It uses an inner and outer double-layer metal tube with a silicone composite shaft sandwiched in the middle to provide hinged support for the hinged cab shaft, thereby providing 360° shock absorption for the cab.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a shock-absorbing shaft, including an inner tube and an outer tube arranged coaxially, with silicone vulcanized between the inner tube and the outer tube, and the two ends of the outer tube inclined inward to form a constriction.

[0005] Preferably, both the inner tube and the outer tube are metal round tubes.

[0006] Preferably, the outer circumference of the inner tube and the inner circumference of the outer tube are sequentially coated with an adhesive that enhances adhesion to the metal and an adhesive that enhances adhesion to the silicone, respectively. The two adhesives are easy to bond together. The two adhesives need to be applied before the silicone is vulcanized, and then melted at the high temperature of the silicone vulcanization to form a strong adhesive.

[0007] Preferably, each end of the silicone tube has 3-6 process blind holes evenly distributed around the inner tube.

[0008] Preferably, the outer tube needs to be reduced in diameter while hot after the silicone vulcanization is completed. Therefore, the diameter of the outer tube of the finished shock absorber shaft is smaller than the diameter of the outer tube before vulcanization.

[0009] The beneficial effects of this utility model are as follows: A shock-absorbing shaft includes an inner tube and an outer tube arranged coaxially, with silicone vulcanized between the inner tube and the outer tube. Each end of the silicone vulcanized shaft has 3-6 blind process holes evenly distributed around the inner tube. This utility model's shock-absorbing shaft has a simple structure, is easy to use, and provides shock absorption upon installation. It offers both support and shock absorption functions, and is aesthetically pleasing and practical. Attached Figure Description

[0010] Figure 1 This is a perspective view of a shock-absorbing shaft according to this utility model;

[0011] Figure 2This is a front sectional view of a shock-absorbing shaft according to this utility model.

[0012] Explanation of reference numerals in the attached figures:

[0013] 1 – Inner tube, 2 – Outer tube, 3 – Silicone. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the present invention.

[0015] like Figure 1 , 2 As shown, a shock-absorbing shaft of this embodiment includes a coaxially arranged inner metal tube 1 and an outer metal tube 2. Both the inner tube 1 and the outer tube 2 are circular tubes, and silicone 3 is vulcanized between them at high temperature. The two ends of the outer tube 2 are inclined inward and narrowed to better fit with the silicone 3 and prevent the silicone 3 from overflowing during use.

[0016] Before operation, an adhesive that enhances adhesion to metal is applied to the outer circumference of the inner tube 1 and the inner circumference of the outer tube 2, and then an adhesive that enhances adhesion to the silicone 3 is applied. The two adhesives work at the high temperature of the silicone 3 vulcanization, and the two adhesives are easy to bond together. Then, the inner tube 1 and the outer tube 2 are placed vertically in the mold, and raw silicone is inserted between them. The third step is to apply a high temperature and high pressure of 150-180°C to the mold and hold the pressure for at least 30 seconds. The fourth step is to take out the workpiece and immediately put it into a diameter reduction machine to reduce the diameter of the outer tube 2 to eliminate the stress generated by the cooling of the silicone 3.

[0017] To prevent the inserted raw silicone from failing to completely fill the space between the inner tube 1 and the outer tube 2 after vulcanization, this embodiment has 3-6 process blind holes evenly distributed around the inner tube 1 at both ends of the silicone 3, in order to avoid product defects caused by insufficient raw silicone and to increase the product's aesthetics.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, and for the convenience of describing the technical solution, the front, back, left, right, top, middle, and bottom orientations are based on the accompanying drawings and are not a limitation on the protection scope of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A damping shaft, characterized in that: It includes an inner tube and an outer tube arranged coaxially, with silicone vulcanized between the inner tube and the outer tube, and the two ends of the outer tube are inclined inward to form a constriction.

2. The damping shaft according to claim 1, characterized in that: Both the inner tube and the outer tube are metal round tubes.

3. A damping shaft according to claim 2, characterized in that: The outer circumference of the inner tube and the inner circumference of the outer tube are sequentially coated with adhesive one for enhancing adhesion to metal and adhesive two for enhancing adhesion to silicone, and the two adhesives are easy to bond together.

4. A damping shaft according to claim 1, characterized in that: The silicone tube has 3-6 process blind holes evenly distributed around both ends of the inner tube.

5. A damping shaft according to claim 1, characterized in that: The diameter of the outer tube of the finished shock absorber shaft is smaller than the diameter of the outer tube before vulcanization.

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