CN218949386U

CN218949386U - Front fork tube of motorcycle shock absorber with ta-c coating plated on surface

Info

Publication number: CN218949386U
Application number: CN202222813269.4U
Authority: CN
Inventors: 林承鑫; 郑智群; 谢礼忠; 李细坚; 刘元才; 徐智勇; 卢奇霞
Original assignee: FUJIAN DONGYA MACHINERY CO LTD
Current assignee: FUJIAN DONGYA MACHINERY CO LTD
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-05-02
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to the technical field of motorcycle shock absorbers, in particular to a front fork tube of a motorcycle shock absorber, the surface of which is plated with a ta-c coating, which comprises a front fork tube body, wherein the outer wall of the front fork tube body is sequentially coated with a metal transition layer and a ta-c layer from inside to outside; and the friction coefficient is lower, so that the comfort and the safety of riding the motorcycle at a high rotating speed are improved.

Description

Front fork tube of motorcycle shock absorber with ta-c coating plated on surface

Technical Field

The utility model relates to the technical field of motorcycle shock absorbers, in particular to a front fork tube of a motorcycle shock absorber, the surface of which is plated with a ta-c coating.

Background

The front shock absorber is divided into a front shock absorber and an inverted front shock absorber, and the inverted front shock absorber is arranged at the upper part of the shock absorber by virtue of a sleeve, so that the rigidity of a front suspension is increased, and meanwhile, the quality of a suspended pituitary is reduced, thereby improving the operation stability of the motorcycle at high speed, and being widely applied to domestic large-displacement motorcycles at present. The front fork tube of the front shock absorber of the inversion type is at the lower part, which is closer to the ground than the front fork tube of the front shock absorber of the inversion type, and the inversion type shock absorber comprises: the outer sleeve, the oil seal and the front fork tube, wherein the front fork tube reciprocates up and down with the oil ring in the outer sleeve, the surface of the traditional front fork tube adopts chromeplate treatment, and the chromeplate treatment has the following defects:

the method has the following defects: the surface chromium plating treatment of the front fork tube belongs to an electroplating process, and the process is not environment-friendly; the front fork tube of the inverted front shock absorber is arranged at the lower part and is closer to the ground than the front fork tube of the front shock absorber, the surface exposed by factors such as flying sand, rainwater and the like in high-speed movement is extremely easy to rust and has the phenomenon of flying sand concave-convex, and then the oil seal is damaged smoothly after the oil seal reciprocates, so that the oil seal is damaged to generate faults such as oil leakage and blocking; and the second disadvantage is that: along with the higher requirements of the large-displacement motorcycle on the service life and the operation stability, the front fork tube of the motorcycle shock absorber has high roughness and high friction coefficient of a chromium coating, so that the phenomenon of shock absorption feedback delay can not meet the requirements.

Disclosure of Invention

The present utility model has been made in an effort to provide a front fork of a motorcycle shock absorber having a ta-c coating layer on the surface thereof, which solves the above-mentioned problems of the related art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a front fork tube of a motorcycle shock absorber with a ta-c coating plated on the surface comprises a front fork tube body, wherein the outer wall of the front fork tube body is sequentially coated with a metal transition layer and a ta-c layer from inside to outside.

Preferably, the metal transition layer is a Cr layer or a Ti layer.

Preferably, the thickness of the metal transition layer is 1-2 mu m, and the hardness is more than or equal to 850HV.

Preferably, the thickness of the ta-c layer is 3-10 μm and the hardness is 1500-3300 HV.

Preferably, the binding force of the ta-c layer is HF1, and the friction coefficient is 0.02.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the ta-c coating is coated on the outer wall of the front fork tube body, and due to the high hardness, low friction coefficient and non-tackiness of the ta-c coating, the coating can be reserved on the surface of the front fork tube for a long time, so that the service time of the front fork tube is prolonged, and the problem of oil leakage caused by the fact that the oil seal is damaged by abrasion of the surface of the front fork tube is solved; and the friction coefficient is lower, so that the comfort and the safety of riding the motorcycle at a high rotating speed are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic cross-sectional view of a front fork tube according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a front fork tube body; 2. a metal transition layer; 3. ta-c layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides a technical solution:

a front fork tube of a motorcycle shock absorber with a ta-c coating plated on the surface comprises a front fork tube body 1, wherein the outer wall of the front fork tube body 1 is sequentially coated with a metal transition layer 2 and a ta-c layer 3 from inside to outside.

Specifically, the metal transition layer 2 is a Cr layer or a Ti layer.

From the above description, it is clear that: the transition of the metal layer adopts a Cr layer or a Ti layer, and has certain hardness, so that a gentle hardness gradient can be formed between the ta-c layer and the outer wall of the front fork tube body, the bonding strength between the film layers is improved, and the service life of the front fork tube body is prolonged.

Specifically, the thickness of the metal transition layer 2 is 1-2 mu m, and the hardness is more than or equal to 850HV.

From the above description, it is clear that: the thickness of the metal transition layer is taken from the range of the interval, so that the influence on the bonding strength between the front fork tube body and the ta-c layer can be avoided, and the improvement of the wear resistance of the film layer is facilitated.

Specifically, the thickness of the ta-c layer 3 is 3 to 10 μm, and the hardness is 1500 to 3300HV.

From the above description, it is clear that: the thickness of the ta-c layer is taken from the range, so that the wear resistance of the ta-c layer can be ensured, and the problems of overlarge film stress, large brittleness and easy falling off can be avoided.

Specifically, the binding force of the ta-c layer 3 is HF1, and the friction coefficient is 0.02.

Both the metal transition layer 2 and the Ta-C coating 3 are applied by means of high frequency sputter deposition.

One embodiment of the utility model is:

the front fork tube of the motorcycle is processed according to the following method:

1. performing conventional degreasing cleaning on the front fork tube body, and then performing ultrasonic cleaning in a hydrocarbon cleaning agent;

2. the front fork tube body is placed in a vacuum coating machine system to be pre-vacuumized to 2 multiplied by 10 ^-5 Pa；

3. High-frequency sputtering deposition of a metal transition layer, namely taking a Ti target as a cathode, taking working gas as Ar gas, and depositing for 30-60 min to obtain a metal transition layer 2 made of Ti;

4. and (3) performing high-frequency sputtering deposition on the ta-C layer, wherein a C target is used as a cathode, working gas is used as Ar gas, and the deposition time is 120min, so as to obtain the motorcycle front fork tube 1 with the ta-C layer 3 coated on the surface.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims

1. Front fork tube of motorcycle shock absorber with ta-c coating on surface, comprising front fork tube body (1), characterized in that: the outer wall of the front fork tube body (1) is sequentially coated with a metal transition layer (2) and a ta-c layer (3) from inside to outside.

2. A motorcycle shock absorber front fork tube with a ta-c coating plated on the surface as claimed in claim 1, wherein: the metal transition layer (2) is a Cr layer or a Ti layer.

3. A motorcycle shock absorber front fork tube with a ta-c coating plated on the surface as claimed in claim 1, wherein: the thickness of the metal transition layer (2) is 1-2 mu m, and the hardness is more than or equal to 850HV.

4. A motorcycle shock absorber front fork tube with a ta-c coating plated on the surface as claimed in claim 1, wherein: the thickness of the ta-c layer (3) is 3-10 mu m, and the hardness is 1500-3300 HV.

5. A motorcycle shock absorber front fork tube with a ta-c coating plated on the surface as claimed in claim 1, wherein: the binding force of the ta-c layer (3) is HF1, and the friction coefficient is 0.02.