CN2808717Y

CN2808717Y - Inversion type front damping device for motorcycle

Info

Publication number: CN2808717Y
Application number: CN 200520009673
Authority: CN
Inventors: 张兴海; 李植; 彭青松
Original assignee: 重庆渝安创新科技(集团)有限公司
Current assignee: Chongqing Yuan Innovation Technology Group Co Ltd
Priority date: 2005-07-25
Filing date: 2005-07-25
Publication date: 2006-08-23
Anticipated expiration: 2015-07-25

Abstract

A kind of motor bike inversed front shock absorber, comprise end tube (1), end cap (2), breeches pipe (3) and urceolus (4), one end of breeches pipe (3) is fixed on the end tube (1), one end of urceolus (4) is fixed on the end cap (2), urceolus (4) connects together with breeches pipe (3) and forms damping inner chamber (5), the damping of damping inner chamber (5) lining is by piston body (6), connecting rod (7), the built-in damper that clutch release slave cylinder (8) and bottom valve body (14) constitute, and there is not damping spring, there is anti-shock fluid clutch release slave cylinder (8) lining, and damping inner chamber (5) lining is filled with 2～5 atmospheric gas mediums.The utility model can effectively be avoided the generation of damping vacuum phenomenon under the high-speed cruising, thereby improves damping performance, improves ride comfort, and designs simplification, and weight saving helps the weight distribution of Finished Motorcycle of motorcycle.

Description

The motor bike inversed front shock absorber

Technical field

The utility model relates to vehicle shock-absorbing device, especially a kind of motor bike inversed front shock absorber.

Background technology

At present, the motor bike inversed front shock absorber is the hydraulic shock-absorption spring structure normally, promptly in the chamber that breeches pipe and urceolus form built-in damper is arranged not only, also has the main damping spring that plays reset response.As just providing a kind of motor bike inversed front shock absorber in the Chinese utility model patent of notification number for CN2621963Y, mainly form by piston rod combination, clutch release slave cylinder, bottom valve body, damping spring, breeches pipe, registration arm, urceolus and end tube etc., the piston rod combination is assemblied in the bottom valve body and forms built-in damper in the clutch release slave cylinder, damping spring is positioned at breeches pipe, damping oil is equipped with in two ends in the clutch release slave cylinder between end tube and registration arm.Piston rod is combined in the clutch release slave cylinder and moves up and down during the motor bike operation, and urceolus is also with respect to the breeches pipe up-and-down movement, by the effect realization damping shock absorption of built-in damper and damping spring simultaneously.Its weak point is: when motor bike on rough road during high-speed cruising, the speed that connecting rod drive piston moves in clutch release slave cylinder is also high, when piston goes downwards to nadir and resets fast in clutch release slave cylinder, the damping oil that has flowed out in the clutch release slave cylinder can have little time to reflux clutch release slave cylinder, the damping vacuum phenomenon will appear when piston is descending once more, make built-in damper moment lose dumping force, influence the motor bike ride comfort.

The utility model content

The purpose of this utility model provides a kind of motor bike inversed front shock absorber, occurs the damping vacuum phenomenon to solve existing motor bike inversed front shock absorber easily when the high-speed cruising, thereby influences the problem of ride comfort.

For addressing the above problem, motor bike inversed front shock absorber described in the utility model, comprise end tube, end cap, breeches pipe and urceolus, one end of breeches pipe is fixed on the end tube, one end of urceolus is fixed on the end cap, and urceolus and breeches pipe connect together and be provided with damping in the damping inner chamber that forms, and this damping is the built-in damper that includes piston body, connecting rod and clutch release slave cylinder, anti-shock fluid is arranged in the clutch release slave cylinder, be filled with 2～5 atmospheric gas mediums in the damping inner chamber.

Above-mentioned end cap is provided with and adds pore, is provided with the inner that the sealant head will add pore in the end cap and blocks, and is provided with support spring in the spring cavity that forms between sealant head and the connecting rod end, and end cap is provided with radially that gas port makes above-mentioned spring cavity communicate with the damping inner chamber.

The motor bike inversed front shock absorber that provides in the utility model and the Chinese utility model patent of publication number for CN2621963Y is compared, saved damping spring, and in the damping inner chamber of breeches pipe and urceolus formation, charge into 2～5 atmospheric gas mediums, when motor bike on rough road during high-speed cruising, connecting rod drives piston body quick travel in clutch release slave cylinder, when piston body goes downwards to nadir and resets fast in clutch release slave cylinder, flowed out damping oil in the clutch release slave cylinder clutch release slave cylinder that can under the compressing of high-pressure gas medium, reflux rapidly, avoid occurring the moment vacuum in the clutch release slave cylinder, thereby avoid the generation of damping vacuum phenomenon.In addition, owing to saved damping spring, weight is alleviated, and helps the distribution of complete vehicle weight.

The beneficial effects of the utility model are: can effectively avoid the generation of damping vacuum phenomenon under the high-speed cruising, thereby improve damping performance, improve ride comfort, and designs simplification, weight saving helps the weight distribution of Finished Motorcycle of motorcycle.

Description of drawings

Fig. 1 is the structural representation of left bumper in the utility model;

Fig. 2 is the X partial enlarged drawing of Fig. 1;

Fig. 3 is the Y partial enlarged drawing of Fig. 1;

Fig. 4 is the Z partial enlarged drawing of Fig. 1.

Among the figure: end tube 1 end cap 2 breeches pipes 3 urceolus 4 damping inner chambers 5 piston bodies 6 valve opening 6a connecting rods 7 clutch release slave cylinders 8 add pore 9 sealant heads 10 spring cavitys 11 support springs 12 gas ports 13 bottom valve bodies 14 valve opening 14a upper chamber 15 lower chambers, 16 buffer springs, 17 valve blocks, 18 spring leafs, 19 valve blocks, 20 spring leafs, 21 damping holes, 22 slotted eyes, 23 screws, 24 O shapes and enclose 25 nuts 26

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

As shown in Figure 1, one end of breeches pipe 3 is fixed on the end tube 1, one end of urceolus 4 is fixed on the end cap 2, urceolus 4 and the breeches pipe 3 damping inner chamber that forms that connects together is filled with 2～5 atmospheric gas mediums for 5 li, the damping that the damping inner chamber is 5 li is built-in damper, and clutch release slave cylinder has anti-shock fluid for 8 li.

Fig. 2 illustrates end cap 2 and is provided with and adds pore 9, being provided with the inner that sealant head 10 will add pore 9 in the end cap 2 blocks, the outer end that adds pore 9 is by

screw

24 and 25 sealings of O shape circle, the spring cavity that forms between sealant head 10 and connecting rod 7 ends is provided with support spring 12 for 11 li, support spring 12 is pressed on sealant head 10 and adds pore 9 inner port, and end cap 2 is provided with radially that gas port 13 makes above-mentioned spring cavity 11 communicate with damping inner chamber 5.Outside end cap 2, axially prick sealant head 10 with the tiny air tube that adds, just can charge into high-pressure gas medium for 5 li to the damping inner chamber by adding pore 9.

Fig. 3, Fig. 4 illustrate built-in damper and are made of piston body 6, connecting rod 7, clutch release slave cylinder 8 and bottom valve body 14, and the threaded one end of connecting rod 7 is connected on the end cap 2, and the other end stretches in the clutch release slave cylinder 8, and by nut 26 with

Piston body 6 links, piston body 6 is separated into upper chamber 15 and lower chambers 16 with clutch release slave cylinder 7, upper chamber is provided with buffer spring 17 for 15 li, the upper end of valve opening 6a is equipped with valve block 18 and spring leaf 19 on the piston body 6, the upper end of valve opening 14a is equipped with valve block 20 and spring leaf 21 on the bottom valve body 14, all have damping hole 22 on two valve blocks 18,20, the aperture of damping hole 22 is less than the aperture of valve opening 6a and valve opening 14a, and the sidewall of clutch release slave cylinder 7 is provided with slotted eye 23 makes the valve opening 14a on the bottom valve body 14 communicate with damping inner chamber 5.The aperture of valve opening 6a is greater than the aperture of damping hole 22 on the valve block 18 on the piston body 6, and the aperture of valve opening 14a is greater than the aperture of damping hole 22 on the valve block 20 on the bottom valve body 14.

The motor bike inversed front shock absorber that provides in the utility model and the Chinese utility model patent of publication number for CN2621963Y is compared, and has saved damping spring, and charges into 2～5 atmospheric gas mediums for 5 li at the damping inner chamber that breeches pipe 3 and urceolus 4 form.

Its principle of work is: when connecting rod 7 drive piston bodies 6 are descending in clutch release slave cylinder 8, the anti-shock fluid of piston body 6 compression lower chambers 16, the pressure of anti-shock fluid is opened the valve block 18 at piston body 6 places, and the valve block 20 at bottom valve body 14 places is closed, because the valve opening 6a on the piston body 6 is greater than the damping hole on the valve block 18 22, valve opening 14a on the bottom valve body 14 is greater than the damping hole on the valve block 20 22, therefore when the anti-shock fluid of lower chambers 16 flows into upper chamber 15 fast by the valve opening 6a on the piston body 6 through the damping hole 22 on the valve block 20, slotted eye 23 on valve opening 14a on the bottom valve body 14 and clutch release slave cylinder 7 sidewalls slowly flows to damping inner chamber 5, promptly forms dumping force at bottom valve body 14 places; When piston body 6 resets when up, opposite with said process, form dumping force at piston body 6 places, thereby reach the effect of damping shock absorption.

When motor bike is run at high speed on rough road, connecting rod 7 drives piston body 6 quick travel in clutch release slave cylinder 8, because the pressure effect of 5 li high-pressure gas mediums of damping inner chamber, when piston body 6 resets in clutch release slave cylinder 8 when up fast, the anti-shock fluid that flows out clutch release slave cylinder 8 can reflux under the pressure effect of gas medium in the clutch release slave cylinder 8 fast, moment damping vacuum occurs in the clutch release slave cylinder 8 in the time of can avoiding piston body 6 descending once more and lose dumping force, thereby improve damping performance, improve ride comfort.

Claims

1, a kind of motor bike inversed front shock absorber, comprise end tube (1), end cap (2), breeches pipe (3) and urceolus (4), one end of breeches pipe (3) is fixed on the end tube (1), one end of urceolus (4) is fixed on the end cap (2), urceolus (4) and breeches pipe (3) damping inner chamber (5) lining that forms that connects together is provided with damping, it is characterized in that: described damping is the built-in damper that includes piston body (6), connecting rod (7) and clutch release slave cylinder (8), there is anti-shock fluid clutch release slave cylinder (8) lining, and damping inner chamber (5) lining is filled with 2～5 atmospheric gas mediums.

2, motor bike inversed front shock absorber according to claim 1, it is characterized in that: described end cap (2) is provided with and adds pore (9), being provided with the inner that sealant head (10) will add pore (9) in the end cap (2) blocks, spring cavity (11) lining that forms between sealant head (10) and connecting rod (7) end is provided with support spring (12), and end cap (2) is provided with radially that gas port (13) makes above-mentioned spring cavity (11) communicate with damping inner chamber (5).

3, motor bike inversed front shock absorber according to claim 1 and 2, it is characterized in that: described built-in damper is by piston body (6), connecting rod (7), clutch release slave cylinder (8) and bottom valve body (14) constitute, one end of connecting rod (7) is connected on the end cap (2), the other end stretches in the clutch release slave cylinder (8) and links with piston body (6), piston body (6) is separated into clutch release slave cylinder (7), lower chambers (15,16), upper chamber (15) lining is provided with buffer spring (17), the upper end that piston body (6) is gone up valve opening (6a) is equipped with valve block (18) and spring leaf (19), the upper end that bottom valve body (14) is gone up valve opening (14a) is equipped with valve block (20) and spring leaf (21), two valve blocks (18,20) all have damping hole (22) on, the sidewall of clutch release slave cylinder (7) is provided with slotted eye (23) makes the valve opening (14a) on the bottom valve body (14) communicate with damping inner chamber (5).

4, motor bike inversed front shock absorber according to claim 3, it is characterized in that: the aperture of the aperture of valve opening (14a) greater than the last damping hole (22) of valve block (20) gone up in the aperture that damping hole (22) is gone up greater than valve block (18) in the aperture of the last valve opening (6a) of described piston body (6), bottom valve body (14).