CN204263073U - A kind of bushing dismounting instrument - Google Patents

Abstract

The utility model relates to hole neck bush drawing extracting tool, specifically a kind of bushing dismounting instrument of stretching drawing type on a kind of automobile.This extracting tool comprises stopping means, augmentor, top cartridge and pull rod device four parts from front to back successively.Wherein said stopping means is screwed by two acorn nuts and isometric studs and forms; Described augmentor is screwed by two handles and forms on handle nut; Described top cartridge is formed by pushing up cover, the top cylinder be threaded with top cover and thrust ball bearing therebetween; Described pull rod device is made up of screw rod, three pulling claws, two small size springs and large size springs.The utility model is that a kind of structure is simple, technique is simple, cost is low, easy to operate, time saving and energy saving, the bushing dismounting instrument that can dismantle plurality of specifications lining.

Description

A Bushing Removal Tool

technical field

The utility model relates to a drawing and dismantling tool for an inner bush in an upper hole of an automobile, in particular to a tensioning and drawing type bush dismantling tool.

Background technique

At present, during the use of the automobile, after the control arm bushing and the bushing on the connecting bracket between the bridge and the frame are damaged, the bushing needs to be disassembled for replacement. But the interference fit between the bushing and the bushing cylinder makes the bushing very difficult to remove.

It is time-consuming and labor-intensive to disassemble the bushing with traditional hand hammer, chisel and other tools, and it is difficult to disassemble, and it is easy to damage the auto parts due to the high hammering force.

Contents of the invention

The utility model provides a tensioning type bush removal tool with simple structure, low cost, convenient operation and convenient bush removal, which overcomes the above-mentioned shortcomings of the traditional bush removal method.

The technical scheme of the utility model is described as follows in conjunction with the accompanying drawings: the dismounting tool includes four parts from front to back: a limiting device, a force applying device, a jacking device and a pull rod device; wherein the limiting device consists of two cap nuts 1 and equal-length double-ended studs 2 are screwed together; the described force device is formed by screwing two handles 3 on the handle nut 4; Threaded top cylinder 7 and thrust ball bearing 6 therebetween are formed; the pull rod device is composed of screw rod 11, three pull claws 10, two small springs 8 and one large spring 9, and the three pull The claws 10 are evenly arranged around the screw rod 11, the two small springs 8 and one large spring 9 are arranged in the ring grooves of the three pull claws 10 and hooked end to end; the screw rod 11 passes through the top cylinder The device cooperates with the forcing device through threaded connection; the screw rod 11 is fixed by the equal-length stud 2 and the cap nut 1; Relative movement of jaws 10.

The handle 3 and the handle nut 4 are replaced by a square nut 12 in the described force applying device.

The beneficial effects of the utility model are: the utility model can disassemble bushes of various specifications, has simple structure, simple process, low cost, convenient operation, and saves time and effort.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic diagram of the utility model tie rod structure;

Fig. 3 is a structural schematic view when the force device of the present invention is a handle and a handle nut;

Fig. 4 is a structural schematic diagram when the force adding device of the present invention is a square nut;

Fig. 5 is a disassembly schematic diagram when the force adding device of the utility model is a handle and a handle nut.

Detailed ways

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the removal tool includes four parts, from front to back, a limiting device, a booster device, a jacking device and a pull rod device. Wherein the limiting device is composed of two cap nuts 1 and studs of equal length 2 screwed together; the force applying device is composed of two handles 3 screwed on the handle nut 4; the top The barrel device is composed of the top barrel cover 5, the top barrel 7 threadedly connected with the top barrel cover 5, and the thrust ball bearing 6 therebetween; A large spring 9 is formed. When assembling, first place the three pull claws 10 evenly around the designated position of the screw rod 11, and then sequentially arrange the two small springs 8 and one large spring 9 on the three pull claws. The claw 10 is hooked end-to-end in the ring groove of the claw 10; the screw rod 11 is threaded through the top cylinder device to cooperate with the force-applying device; the screw rod 11 is fixed by the equal-length double-ended stud 2 and the cap nut 1; The axial force transmitted by the force applying device through the threaded connection promotes the relative movement of the push cylinder 7 and the pull claw 10 .

Referring to Fig. 1, Fig. 3, Fig. 4, the force adding device is two handles 3 and a handle nut 4 or a square nut 12 threadedly connected with the handle 3, and when the square nut 12 is used, the wrench is realized by tools such as an adjustable wrench.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, when in use, pass the screw rod 11 of the pull rod device through the jacking device, the force device in turn, and unscrew it from the force device, and then put the equal-length double head Stud 2 is inserted in the hole of screw rod 11, is screwed to the two ends of equal-length stud 2 with two acorn nuts 1 again. Manually shrink the pull claw 10, place it in the bush to be disassembled, push the pull claw 10 to the bottom of the bush, the pull claw 10 will automatically open under the contraction force of the small spring 8, and hook on the On the bushing wall, rotate the handle 3 clockwise or use a tool such as a wrench to twist the square nut 12, so that the top cylinder 7 is supported on the bushing cylinder, continue to rotate the force device, and the axial force transmitted through the threaded connection pushes the top cylinder 7 The relative movement with the pulling claw 10, thereby pulling the bushing out.

Claims (2)

1. a bushing dismounting instrument, is characterized in that, this extracting tool comprises stopping means, augmentor, top cartridge and pull rod device four parts from front to back successively; Wherein said stopping means is screwed by two acorn nuts (1) and isometric studs (2) and forms; Described augmentor is screwed by two handles (3) and forms on handle nut (4); Described top cartridge is formed by pushing up cover (5), the top cylinder (7) be threaded with top cover (5) and thrust ball bearing therebetween (6); Described pull rod device is made up of screw rod (11), three pulling claws (10), two small size springs (8) and large size springs (9), three described pulling claws (10) are evenly arranged on screw rod (11) around, and two described small size springs (8) and large size spring (9) are arranged in the annular groove of three pulling claws (10) and head and the tail are hooked together; Described screw rod (11) is threaded connection through top cartridge and coordinates with augmentor; Described screw rod (11) is fixed by isometric studs (2) and acorn nut (1); Described augmentor is threaded connection axial force promotion top cylinder (7) of transmission and the relative motion of pulling claw (10).

2. a kind of bushing dismounting instrument according to claim 1, is characterized in that, in described augmentor, handle (3) and handle nut (4) are replaced by a square nut (12).