CN111720477B

CN111720477B - Spring preloading device for front shock absorber of motorcycle

Info

Publication number: CN111720477B
Application number: CN202010423324.1A
Authority: CN
Inventors: 杨开勤; 杨旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2022-02-25
Anticipated expiration: 2040-05-19
Also published as: CN111720477A

Abstract

The invention discloses a spring preloading device for a front shock absorber of a motorcycle, which relates to the technical field of motorcycle shock absorbers and comprises the following components: the compression main body pipe, the upper seat and the pre-pressing adjusting ring are sleeved outside the compression main body pipe, a filling part and the pre-pressing adjusting ring are sequentially arranged in a gap between the side wall of the compression main body pipe and the side wall of the upper seat from top to bottom, the filling part can enable the compression main body pipe and the upper seat to rotate relatively, the pre-pressing adjusting ring is connected with the compression main body pipe through a roller pin, and the pre-pressing adjusting ring is in threaded connection with the upper seat. The invention overcomes the defect that the initial force value generated by the traditional spring preloading force after the shock absorber is assembled cannot be changed, and the spring preloading force can be adjusted, so that the spring preloading force can be further adjusted according to the weight or environmental requirements of different riders.

Description

Spring preloading device for front shock absorber of motorcycle

Technical Field

The invention relates to the technical field of motorcycle shock absorbers, in particular to a spring preloading device for a front shock absorber of a motorcycle.

Background

The vehicle can be assembled with front shock absorbers at front wheels and front suspension parts due to various road surface requirements, so that the acting force caused by the fact that the vehicle bears the road surface and a bearing object is offset, and the driving comfort of the vehicle is improved.

In the prior art, the shock absorber converts the generated impulsive force (vibration energy) into heat energy to be consumed through the resistance when the internal oil body of the shock absorber flows through each element (such as a piston and a damping hole), thereby achieving the effect of buffering. When the shock absorber works, the damping oil in the inner tube of the shock absorber is continuously exchanged in the reciprocating motion of the return piston and the main shaft core, and the compression resistance and the return damping are generated when the damping oil opens the return piston steel sheet combination and the compression piston steel sheet combination. However, the damping oil in the inner tube (cylinder) outer chamber of this structure is communicated with the air, and the initial force value generated by the preload force of the spring after the assembly of the shock absorber cannot be changed.

And cannot be further adjusted to accommodate different rider weights or environmental requirements because of the non-adjustability of the spring preload force.

Disclosure of Invention

The invention aims to provide a spring preloading device for a front shock absorber of a motorcycle, which aims to solve the problems in the prior art, and the spring preloading force can be adjusted, so that the spring preloading force can be further adjusted according to the weights of different riders or environmental requirements.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a spring preloading device for a front shock absorber of a motorcycle, which comprises a compression main body pipe, an upper seat and a preloading adjusting ring, wherein the upper seat is sleeved outside the compression main body pipe, a filling part and the preloading adjusting ring are sequentially arranged in a gap between the side wall of the compression main body pipe and the side wall of the upper seat from top to bottom, the filling part can enable the compression main body pipe and the upper seat to relatively rotate, the preloading adjusting ring is connected with the compression main body pipe through a roller pin, and the preloading adjusting ring is in threaded connection with the upper seat.

Preferably, the filling member includes a first gasket, a second gasket, a third gasket, a fourth gasket, a collar for a shaft, and a fixing ring, which are provided in this order from top to bottom, and the compression main tube presses the first gasket against the upper end surface of the upper seat.

Preferably, the first gasket, the second gasket and the fourth gasket are flat gaskets.

Preferably, the third gasket is a resilient gasket.

Preferably, the shaft collar is a shaft C-shaped collar.

Preferably, the compression main body pipe lower part is provided with C type retaining ring, C type retaining ring is located pre-compaction adjusting ring below.

Compared with the prior art, the invention has the following technical effects:

the invention provides a spring preloading device for a front shock absorber of a motorcycle, which is characterized in that when an upper seat is fixed on a shock absorption outer tube, a compression main body tube rotates to drive a preloading adjusting ring to rotate through a roller pin, the preloading adjusting ring is in threaded connection with the upper seat, the preloading adjusting ring rotates along the thread and moves up and down through the guide of the roller pin, and applies pressure to a spring supporting tube and a spring, so that the function of adjusting the preloading of the spring is realized, and the spring preloading device can be further adjusted according to the weights or environmental requirements of different riders.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a cross-sectional view of a motorcycle front shock absorber spring preload apparatus provided in accordance with the present invention;

FIG. 2 is an exploded view of FIG. 1;

wherein: 1-a first gasket, 2-a second gasket, 3-a third gasket, 4-a fourth gasket, 5-a shaft collar, 6-a fixing ring, 7-a C-shaped retainer ring, 8-a compression main body pipe, 9-a pre-pressing adjusting ring, 10-an upper seat and 11-a roller pin.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in FIGS. 1-2: the embodiment provides a spring preloading device for a front shock absorber of a motorcycle, which comprises a compression main body tube 8, an upper seat 10 and a preloading adjusting ring 9, wherein the upper seat 10 is used for being fixed on a shock absorption outer tube, the upper seat 10 is sleeved outside the compression main body tube 8, a filling part and the preloading adjusting ring 9 are sequentially arranged in a gap between the side wall of the compression main body tube 8 and the side wall of the upper seat 10 from top to bottom, the filling part can enable the compression main body tube 8 and the upper seat 10 to rotate relatively, a needle groove is arranged on the compression main body tube 8, a needle 11 is arranged in the needle groove, the preloading adjusting ring 9 is connected with the compression main body tube 8 through the needle 11, the compression main body tube 8 can drive the preloading adjusting ring 9 to rotate, the preloading adjusting ring 9 is in threaded connection with the upper seat 10, the preloading adjusting ring 9 can move up and down along the needle 11 while rotating, and further apply pressure to the spring and a spring supporting tube, so as to realize the function of adjusting the preload of the spring, and further adjust the preload of the spring according to the body weight or environmental requirements of different riders.

The filling part comprises a first gasket 1, a second gasket 2, a third gasket 3, a fourth gasket 4, a shaft collar 5 and a fixing ring 6 which are sequentially arranged from top to bottom, the first gasket 1 is pressed on the upper end face of the upper seat 10 by the compression main body pipe 8, and the shaft collar 5 is wrapped in a flanging step of the fixing ring 6 to prevent the shaft collar 5 from falling off.

The first gasket 1, the second gasket 2 and the fourth gasket 4 are preferably each a flat gasket.

The third gasket 3 is preferably a resilient gasket.

The shaft retainer 5 is preferably a shaft C-shaped retainer.

Compression main part pipe 8 lower part is provided with C type retaining ring 7, and C type retaining ring 7 is located pre-compaction adjusting ring 9 below for carry on spacingly to pre-compaction adjusting ring 9, in order to confirm the preloaded height-adjusting of spring.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. A pre-loading device for a spring of a front shock absorber of a motorcycle is characterized in that: the compression main body pipe is sleeved with the upper seat and the prepressing adjustment ring, a filling part and the prepressing adjustment ring are sequentially arranged in a gap between the side wall of the compression main body pipe and the side wall of the upper seat from top to bottom, the filling part can enable the compression main body pipe and the upper seat to rotate relatively, a needle groove is formed in the compression main body pipe, a needle is placed in the needle groove, the prepressing adjustment ring is connected with the compression main body pipe through the needle, the prepressing adjustment ring is in threaded connection with the upper seat, and the prepressing adjustment ring can move up and down along the needle while rotating.

2. The motorcycle front shock absorber spring preloading device as recited in claim 1, wherein: the filling part comprises a first gasket, a second gasket, a third gasket, a fourth gasket, a shaft collar and a fixing ring which are sequentially arranged from top to bottom, and the compression main body pipe presses the first gasket on the upper end face of the upper seat.

3. The motorcycle front shock absorber spring preloading device as recited in claim 2, wherein: the first gasket, the second gasket and the fourth gasket are all flat gaskets.

4. The motorcycle front shock absorber spring preloading device as recited in claim 2, wherein: the third gasket is a spring gasket.

5. The motorcycle front shock absorber spring preloading device as recited in claim 2, wherein: the shaft collar is a shaft C-shaped collar.

6. The motorcycle front shock absorber spring preloading device as recited in claim 1, wherein: the lower part of the compression main body pipe is provided with a C-shaped check ring, and the C-shaped check ring is positioned below the pre-pressing adjusting ring.