CN2768985Y

CN2768985Y - Oil-seal detaching device

Info

Publication number: CN2768985Y
Application number: CN 200420107565
Authority: CN
Inventors: 袁荣丙
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-26
Filing date: 2004-10-26
Publication date: 2006-04-05
Anticipated expiration: 2014-10-26

Abstract

The utility model discloses a detaching device special for replacing a damper oil seal of a front fork when a motorcycle is under repair. The utility model is characterized in that a draw rod, a spring, three clamping jaws, a clamping jaw fixing sleeve and a fixing supporting seat are sheathed with each other orderly, wherein the three clamping jaws form 120 DEG with each other and are movably connected with the clamping jaw fixing sleeve through pins, and the head of each clamping jaw is provided with a jaw hook which faces outward. The upper section of a draw rod forms a yarn ball-shaped double-bevel cone, and the surface of the cone is always clung to the inner edge of the clamping jaws. The middle of the draw rod is provided with a cylinder, and the lower section of the draw rod is planned into flat half-square cylinders symmetrically. The draw rod is inserted into the three clamping jaws and is movably connected with a cam after passing through the clamping jaw fixing sleeve and a shaft hole in the middle of the fixing supporting seat. When the utility model is used, a handle of the cam is wrenched to pull an oil seal out. The utility model ensures that the disassembly of an oil seal is convenient, which is good for lightening the labor intensity of maintainers, enhancing maintenance quality, and lowering maintenance cost and the burden of users.

Description

The oil sealing stripping attachment

Technical field

The utility model relates to vehicle maintenance tool, is a kind of oil sealing stripping attachment of changing Motorcycle Front Fork damper oil sealing that is exclusively used in.

Background technology

Along with flat generally the improving and the change of traffic route situation of development and national economy and people's running water, the popular vehicles are taken leave of the bicycle epoch gradually, march toward the New Times of motorcycle, automobile.Therefore various traditional repair outfits can't adapt to, especially the specific purpose tool of maintenance motorcycle.Front fork damper oil sealing with a fairly simple replacing motorcycle is an example, traditional method is to prize with screwdriver, the pliers pincers, What is more knocks with hammer, so almost the method for dismounting of " cruelty " is difficult to prove effective sometimes, do to such an extent that badly damper is damaged scrap, usually to have to change whole front fork damper and finish.This method because of the replacing oil sealing that is provided with removal tool special not only makes the maintenance personal feel trouble, has increased maintenance cost simultaneously, makes the user be difficult to bear, and is the significant wastage of resource.This China invites the person has invented a kind of specific purpose tool-----oil sealing stripping attachment of dismantling the front fork damper oil sealing of motorcycle in being engaged in vehicle maintenance work for a long time.

The utility model content

The purpose of this utility model is the oil sealing stripping attachment that the vehicle maintenance personnel in society provide a kind of dismounting Motorcycle Front Fork damper oil sealing, overcome because of there not being removal tool special usually to damage the drawback of damper, make the maintenance work of dismounting oil sealing become simple and convenient, and can not damage the aluminum barrel inwall of damper, alleviate maintenance personal's labour intensity, improve maintenance work efficiency and repair quality.

The technical scheme of the utility model technical solution problem is: with the inner ring that a device that has jaw and a pull bar puts in oil sealing oil sealing integral body is pulled out.It is made up of handle, cam, fixed mounting base, pull bar, jaw, jaw fixed cover, spring, cam pin and jaw pin.It is characterized in that the order socket from inside to outside of pull bar, spring, jaw fixed cover, fixed mounting base, be provided with three jaws that are mutually 120 ° in the jaw fixed cover, form flexible connection by jaw pin and jaw fixed cover, through hole and cam that the pull bar hypomere passes in the middle of jaw fixed cover and the fixed mounting base constitute flexible connection by the cam pin.

Described handle and cam fuse.The epimere of described pull bar is compound and be the double inclined plane cone of yarn group mandrel shape by the vertex of a cone of two cones, and the stage casing is a right circular cylinder, and hypomere is planed into the en cylinder on plane for symmetry, and head is provided with a pinhole.Described cam is that 4 profiles have different curve steel plates, and two is small pieces in the middle of it, and two in the outside is large stretch of bloom that common pin-and-hole is arranged that is combined into one.Described jaw is the thin flat sheet of metal of three hook solid, the claw hook of its head outwardly, a pin-and-hole is respectively arranged at the bottom.Described fixed mounting base is the cylinder of upper-thin-lower-thick, and base plate central authorities have circular hole, its aperture can just allow the cylinder of jaw fixed cover the latter half pass through, and are step transition between thin-walled and the heavy wall.The internal diameter of top barrel is more bigger than the external diameter of front fork damper.Described jaw fixed cover bottom is a cylinder, top is the thick cyclinder body, every folder has a groove for 120 ° on the barrel, in order to clamp three jaws, jaw can be expanded outwardly, the barrel bottom of griffith woodsorrel herb shape is respectively equipped with three pin-and-holes, and the internal diameter of its underpart barrel portion is slightly larger than the diameter of the column part of pull bar.Described spring is spiral cylindrical spring, and its internal diameter is more bigger than the column part external diameter of pull bar.

Use the oil sealing of the front fork damper of the utility model dismounting motorcycle, make that tearing the work of driving open becomes not only soon but also leicht fallen D/A, and can not damage the barrel of front fork damper.For the labour intensity that alleviates the repairman, improve work efficiency, reduce maintenance cost, it is all very favourable to alleviate burden for users.The utility model is simple in structure, is easy to make, and is easy to use, is one of repair outfit of motorcycle maintenance industry indispensability.If those of ordinary skill in the art utilizes structure of the present utility model and principle, repack the similarly stripping attachment of other oil sealings into, but still belong to protection domain of the present utility model.

Description of drawings

Fig. 1 is structural representation of the present utility model (half section);

Fig. 2 is the stereogram that the utility model decomposes the back critical piece;

Fig. 3 is the front view (broken section) of the utility model jaw fixed cover; ,

Fig. 4 is the vertical view of jaw fixed cover;

Fig. 5 is the front view of jaw fixed cover profile;

Fig. 6 is jaw fixed cover and jaw pin connection layout (A-A of Fig. 5 is to cutaway view);

Fig. 7 is the front view of the utility model cam;

Fig. 8 is the cutaway view (centre is small pieces, is large stretch of on the limit) of the utility model cam;

Fig. 9 is the vertical view of the utility model cam;

Each title and mark among the figure: 1. handle, 2. cam, 3. fixed mounting base, 4. pull bar 5. jaw fixed covers, 6. jaw, 7. spring, 8. cam pin, 9. jaw pin.

Figure 10 is for using the first step of the utility model dismounting oil sealing: earlier jaw and jaw fixed cover are filled in the oil sealing, made the straight flange position of two small pieces in the middle of the cam touch the bottom of fixed mounting base, cam handle is in horizontal level;

Figure 11 is second step of dismounting oil sealing: pull handle to 90 °, make the protuberance of cam withstand the fixed mounting base bottom, force pull bar to move downward, the double inclined plane cone of pull bar epimere is pushed jaw to the outside, and the claw hook of jaw is hooked oil sealing and pulling downwards.

Figure 12 is the 3rd step of dismounting oil sealing: continue to pull handle to 180 °, two sheets in the cam outside withstand the fixed mounting base bottom, make pull bar continue to move downward to two middle die location of cam together with the jaw fixed cover, this moment, oil sealing was drawn out.

[annotate: the parts of band reticulate pattern are represented oil sealing among Figure 10 to Figure 12].

The specific embodiment

Now contrasting accompanying drawing describes in further detail the process of structure of the present utility model with the dismounting oil sealing: as depicted in figs. 1 and 2, the utility model is made up of handle 1, cam 2, fixed mounting base 3, pull bar 4, jaw fixed cover 5, jaw 6, spring 7, cam pin 8 and jaw pin 9.Earlier three jaws 6 are embedded in three straight troughs of jaw fixed cover 5 during assembling, become to flexibly connect with the barrel of jaw fixed cover 5, then with the order socket from inside to outside of pull bar 4, spring 7, jaw fixed cover 5, fixed mounting base 3 with jaw pin 9.In the screw on the handle 1 screw-in cam 2; The part of stretching out outside fixed mounting base 3 by cam pin 8 and pull bar 4 becomes to flexibly connect then.

When the dismounting oil sealing (Figure 10 to Figure 12), the double inclined plane cone that first epimere with pull bar 4 is yarn coil core shape part up pushes away, the handle 1 of cam 2 is horizontal, three jaws 6 also are in the state that draws in toward the center, pull bar 4, jaw 6 and jaw fixed cover 5 inserted together wait to tear open in the oil seal washer, and make the step end face of fixed mounting base 3 and split front fork spare end face develop (as Figure 10).Left hand is held fixed mounting base 3, and the right hand is slowly pulled handle 1 to the upright position, and jaw 6 is under the extruding of the double inclined plane cone of pull bar 4 epimeres at this moment, and claw hook expands outwardly, and oil sealing is hooked (Figure 11).Because cam 2 is close to the bottom of fixed mounting base 3 all the time under the effect of spring 7 tension force, force pull bar 4 to move downward, the double inclined plane cone that its epimere is yarn coil core shape is outwards squeezed jaw 6 and is opened and tightly hook oil sealing and move downward together.The right hand continues to pull handle to 180 °, and the claw hook band of jaw 6 oil seal washer and moved downward to front fork damper exit, and oil sealing promptly is drawn out (as Figure 12).The right hand turns back the original place with handle 1, and pull bar 4 is restored to the original state under the effect of spring 7 tension force, and this moment, oil sealing promptly broke away from stripping attachment automatically.

Claims

1 one kinds are exclusively used in the oil sealing stripping attachment of changing Motorcycle Front Fork damper oil sealing, by handle (1), cam (2), fixed mounting base (3), pull bar (4), jaw (6), jaw fixed cover (5), spring (7), cam pin (8) and jaw pin (9) are formed, it is characterized in that pull bar (4), spring (7), jaw fixed cover (5), fixed mounting base (3) order socket from inside to outside, be provided with three jaws (6) that are mutually 120 ° in the jaw fixed cover (5), form flexible connection by jaw pin (9) and jaw fixed cover (5), through hole and cam (2) that pull bar (4) hypomere passes in the middle of jaw fixed cover (5) and the fixed mounting base (3) constitute flexible connection by cam pin (8).

2. oil sealing stripping attachment as claimed in claim 1, it is characterized in that the epimere of described pull bar (4) is the double inclined plane cone of yarn group mandrel shape, the conical surface is close to the inner edge of jaw (6), the stage casing is a cylinder, the outside is with spring (7), hypomere is the en cylinder of planing into the plane symmetrically, and head is provided with pin-and-hole, is made of with cam (2) cam pin (8) to flexibly connect.

3 oil sealing stripping attachments as claimed in claim 1, the claw hook direction that it is characterized in that described jaw (6) is outwardly. and two planes of every jaw (6) embed respectively in three straight troughs of jaw fixed cover (5), jaw (6) bottom is provided with pin-and-hole, becomes to flexibly connect with jaw fixed cover (5) with jaw pin (9).

4 oil sealing stripping attachments as claimed in claim 1, it is characterized in that described jaw fixed cover (5) is a cylinder, the external diameter of epimere is more smaller than the internal diameter of fixed mounting base (3) bottom, and be mutually 120 ° on the barrel around and have three straight troughs, the external diameter of hypomere is more smaller than the through hole of fixed mounting base (3) bottom center.

5 oil sealing stripping attachments as claimed in claim 1, it is characterized in that described cam (2) is to be fused and had the bloom of common pin-and-hole by four fan-shaped steel plates, two of centres are smaller, the outer rim curve is identical, and clamp the head of pull bar (4) hypomere, and the pin-and-hole that is passed both by pin (8) forms flexible connection, and two of outsides are slightly too, its outer rim curve is also mutually the same, and handle (1) is arranged on the straight plane at edge.

6 oil sealing stripping attachments as claimed in claim 1, it is characterized in that described fixed mounting base (3) is the cylinder of upper-thin-lower-thick, the top internal diameter is more bigger than front fork shock absorber cylinder body diameter, the bottom internal diameter omits too than the external diameter of jaw fixed cover (5) epimere, base plate is provided with through hole, and two parts p inwall is a step transition up and down.