CN201082748Y - Motorcycle cradle connecting mechanism - Google Patents

Abstract

The utility model discloses a cradle connecting mechanism for the motorcycle. The lower mounting supporting rack of a rear shock absorber is fixed at the middle part of a rear fork connecting tube, two rocking arms with identical structure are arranged in parallel, mounting holes distributed triangularly are arranged on the rocking arms, the mounting holes positioned at the apex angles of the rocking arms are hinged with the lower end of the rear shock absorber, the mounting holes at the front base angles of the rocking arms are hinged with one end of a connecting rod, and the other end of the connecting rod is hinged with the mounting supporting rack of the connecting rod of the motorcycle frame; an outer liner tube is fixed on the lower mounting supporting rack of the rear shock absorber, and sleeved on an inner liner tube through a sliding bearing, two ends of the inner liner tube are respectively extended out of the two end surfaces of the outer liner tube, and attached with the inner side surfaces of the back ends of the rocking arms, the mounting holes at the rear base angles of the two rocking arms are connected with the inner liner tube through a bolt, and locked through a nut, and the rocking arms, the inner liner tube and the bolt can be rotated around the outer liner tube. The utility model has the advantages that the design is ingenious, the structure and the assembly are simple, the shock absorption effect and the riding comfortableness of the motorcycle can be effectively enhanced through the cradle connecting mechanism, simultaneously the production cost is reduced, and the assembly efficiency is reduced.

Description

Motorcycle cradle connection mechanism

technical field

The utility model belongs to the technical field of motorcycles, in particular relates to a motorcycle cradle connection mechanism.

Background technique

The structure of the existing motorcycle cradle connection mechanism is shown in Figure 4, Figure 5 and Figure 6, and the mounting bracket 2 under the rear shock absorber is welded and fixed on the rear fork connection pipe 1d; Composed of a rod 10 and a bushing 12, two rocker arms 5 with the same structure are arranged in parallel, and there are mounting holes in a triangular distribution on the rocker arms 5, wherein the mounting holes at the corners of the triangle are hinged to the lower end of the rear shock absorber 9, A sleeve 12 is welded in the mounting hole at the front bottom corner of the triangle, and the sleeve 12 is connected to the frame connecting rod mounting bracket 11 through bolts, while the mounting hole at the rear bottom corner of the triangle is hinged with one end of the connecting rod 10 through bolts. The other end of the rod 10 is set on the inner liner 4 through the sliding bearing 6, and the inner liner 4 is located between the two opposite lugs 2a on the lower mounting bracket 2 of the rear shock absorber, and is connected with the lug 2a by the bolt 7.

During the running of the motorcycle, the rear wheel rises and falls with the ground, and the rocker arm 5 and the connecting rod 10 rotate around the mounting hole of the frame connecting rod mounting bracket 11 under the action of the sliding bearing 6, and the connecting rod 10 is used as an implicated Movement, the rear shock absorber 9 is continuously compressed and returned, thereby playing the role of shock absorption. Because the rocker arm 5 in the prior art rotates around the frame connecting rod mounting bracket 11, the telescopic amount of the rear shock absorber 9 is limited by the arm length between the top corner mounting hole on the rocker arm 5 and the front bottom corner mounting hole. , because the arm length between the two holes is relatively short, the compression amount of the rear shock absorber 9 is relatively small, and the energy absorbed by the rear shock absorber 9 is also small, so that the effect of shock absorption is not ideal, and the driving comfort poor. At the same time, the structure of the cradle and the assembly relationship between the cradle and the rear shock absorber 9, the connecting rod 10 and the frame connecting rod mounting bracket 11 are complicated, and the requirements for assembly accuracy are relatively high, so the manufacturing accuracy of related parts requires Higher, resulting in higher manufacturing costs.

Utility model content

The technical problem to be solved by the utility model is to provide a motorcycle cradle connection mechanism with better damping effect.

The technical scheme of the utility model is as follows: a motorcycle cradle connection mechanism, including a rear fork connection pipe, a rear shock absorber lower mounting bracket, an inner lining pipe, a rocker arm, a rear shock absorber, a connecting rod and a frame connecting rod Mounting bracket, wherein the lower mounting bracket of the rear shock absorber is fixed in the middle of the rear fork connecting pipe, the two rocker arms with the same structure are arranged in parallel, and there are mounting holes distributed in a triangle on the rocker arms, and the mounting holes located at the top corners of the rocker arms Hinged with the lower end of the rear shock absorber, the key lies in: the mounting hole at the front bottom corner of the rocker arm is hinged with one end of the connecting rod, and the other end of the connecting rod is hinged with the mounting bracket of the frame connecting rod; The outer liner is fixed on the mounting bracket under the device, and the outer liner is set on the inner liner through a sliding bearing. The mounting holes at the rear bottom corners of the two rocker arms and the inner liner are connected together by bolts and locked by nuts, and the rocker arms together with the inner liner and the bolts can rotate around the outer liner.

In the utility model, the cradle is composed of a rocker arm and a connecting rod, and the sleeve pipe in the background technology is canceled, and the structure and assembly are simpler; at the same time, the rocker arm in the background technology is connected with the inner liner through the connecting rod to be directly connected to the rocker arm. It is set on the bolt and locked by the nut, so that the rocker arm and the inner liner are closely connected together. Under the action of the sliding bearing, the rocker, the inner liner and the bolt can rotate around the outer liner. Compared with the background technology, the rocker arm in the utility model is connected with the frame link mounting bracket through the connecting rod, and the connecting rod rotates around the center line of the mounting hole of the frame link mounting bracket mounting hole, and the rocker arm performs implicated motion, and the range of motion is wider. Correspondingly, the rear shock absorber can be designed with a larger compression amount according to the actual situation, thus greatly improving the shock absorption effect and driving comfort. In addition, because the rocker arm is composed of two independent triangular mounting plates, the alignment between the rocker arm, the rear shock absorber and the connecting rod is easier, and the assembly accuracy requirements for related parts are lower, thereby reducing the cost of related parts. The production and manufacturing costs are reduced, and the assembly efficiency of workers is improved.

In order to make the connection between the outer lining pipe and the lower mounting bracket of the rear shock absorber firm, the two ends of the outer lining pipe respectively pass through two opposite lugs on the lower mounting bracket of the rear shock absorber, and the outer lining pipe and the lugs fixed by welding.

Beneficial effects: the utility model has the characteristics of ingenious design, simple structure and assembly, etc. It can effectively improve the shock absorption effect and driving comfort of the motorcycle, reduce the manufacturing cost, and greatly improve the assembly efficiency of workers.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a bottom view of Fig. 1 .

Fig. 3 is a schematic diagram of the connection of the middle rocker arm, the outer liner, the inner liner and the lower mounting bracket of the rear shock absorber in the utility model.

Fig. 4 is a schematic structural diagram of the background technology.

Fig. 5 is a bottom view of Fig. 4 .

Fig. 6 is a schematic diagram of the connection of the connecting rod, the inner liner pipe and the lower mounting bracket of the rear shock absorber in the background art.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

As shown in Fig. 1, Fig. 2 and Fig. 3, the rear fork 1, the rear shock absorber 9 and the vehicle frame connecting rod mounting bracket 11 are all known and common structures, and will not be repeated here. Rear fork 1 includes rear fork left pipe 1a, rear fork right pipe 1b, rear fork connecting sleeve 1c and rear fork connecting pipe 1d, rear fork left and right pipes 1a, 1b are distributed symmetrically, and their front ends are welded on the rear fork On the connecting sleeve 1c, the middle front parts of the left and right pipes 1a and 1b of the two rear forks are welded and fixed by the rear fork connecting pipe 1d, and the rear fork connecting pipe 1d is parallel to the rear fork connecting sleeve 1c. The lower mounting bracket 2 of the rear shock absorber is welded in the middle of the rear fork connecting pipe 1d, and the lower mounting bracket 2 of the rear shock absorber has two opposite lugs 2a.

It can be seen from Fig. 1, Fig. 2 and Fig. 3 that the cradle is composed of a rocker arm 5 and a connecting rod 10, and two rocker arms 5 with the same structure are arranged in parallel. There are also mounting holes in a triangular distribution on the top, wherein the bolts pass through the mounting holes at the top corners of the two rocking arms 5 and the mounting holes at the lower end of the rear shock absorber 9 to hinge the rocking arms 5 and the rear shock absorber 9 together. The structure of the connecting rod 10 is the same as that of the background technology. There are bushings at its two ends. The mounting holes at the front bottom corners of the two rocker arms 5 are located on both sides of the bushing at the rear end of the connecting rod 10, and are hinged together by bolts. The connecting rod 10 The sleeve pipe at the front end is located between the two installation holes of the vehicle frame connecting rod installation bracket 11, and is also hinged together by bolts. The two ends of the outer liner 3 respectively pass through two opposite lugs 2a on the rear shock absorber lower mounting bracket 2, and the outer liner 3 and the lugs 2a are fixed by welding. In the tube of the outer lining pipe 3, the inner lining pipe 4 is supported by a sliding bearing 6, the axis line of the inner lining pipe 4 is parallel to the axis line of the rear fork connecting pipe 1d, and the two ends of the inner lining pipe 4 protrude from the outer lining pipe 3 respectively. The two ends of the rocker arm 5 are attached to the inner surface of the rear end of the rocker arm 5. The installation holes at the rear bottom corners of the two rocker arms 5 are connected with the inner liner 4 by bolts 7 and locked by nuts 8, so that the rocker arm 5 and the inner The liner 4 is closely attached together, and under the action of the sliding bearing 6, the rocker arm 5 together with the inner liner 4 and the bolt 7 can rotate around the outer liner 3. When the motorcycle is running, the rear wheel rises and falls with the ground, the connecting rod 10 rotates around the center line of the mounting hole of the connecting rod mounting bracket 11 of the frame, and the rocker arm 5 performs implicated motion, with a large range of motion, and accordingly the rear shock absorber The compression amount of the device 9 can be increased, thereby greatly improving the shock absorption effect and the comfort of driving.

Claims (2)

1. A motorcycle cradle connection mechanism, comprising a rear fork connection pipe (1d), a rear shock absorber lower mounting bracket (2), an inner lining pipe (4), a rocker arm (5), a rear shock absorber (9 ), the connecting rod (10) and the frame connecting rod mounting bracket (11), wherein the rear shock absorber lower mounting bracket (2) is fixed in the middle of the rear fork connecting pipe (1d), and the two rocker arms (5) with the same structure Arranged in parallel, there are mounting holes in a triangular distribution on the rocker arm (5), and the mounting hole at the top corner of the rocker arm (5) is hinged to the lower end of the rear shock absorber (9), characterized in that: the rocker arm (5) The mounting hole of the front bottom angle is hinged with one end of the connecting rod (10), and the other end of the connecting rod (10) is hinged with the vehicle frame connecting rod mounting bracket (11); the mounting bracket ( 2) is fixed with an outer liner (3), the outer liner (3) is set on the inner liner (4) through a sliding bearing (6), and the two ends of the inner liner (4) protrude from the outer liner ( 3) and abut against the inner surface of the rear end of the rocker arm (5), the mounting holes at the rear bottom corners of the two rocker arms (5) and the inner liner pipe (4) are connected together by bolts (7), Locked by the nut (8), the rocker arm (5) together with the inner liner (4) and the bolt (7) can rotate around the outer liner (3). 2. The motorcycle cradle connection mechanism according to claim 1, characterized in that: the two ends of the outer liner (3) are connected respectively from two opposite lugs ( 2a), the outer lining pipe (3) and the lug (2a) are fixed by welding.

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