CN208163517U - A kind of extracting tool of blind hole neck bush - Google Patents

Abstract

The utility model relates to a dismantling tool for a blind hole inner bush, which comprises a rotatable claw, a fixed claw, a pull rod shaft, a support plate, and a force nut. The fixed claw is fixedly installed on the bottom of the pull rod shaft, and the rotatable claw It is arranged on the fixed jaw and can rotate around the shaft of the pull rod. The distance from the end of the rotatable jaw and the fixed jaw to the center of the shaft of the pull rod is between the inner and outer diameters of the bush to be disassembled. The rotatable jaw and the fixed jaw are The upper surface of the claw end surface cooperates with the bottom of the shaft sleeve to be disassembled, and the pull rod shaft passes through the support plate, and a force nut is installed. In the absence of a suitable force application point, the utility model pulls the bush upward evenly through the action of the force application nut and the claws, so that the blind hole of the inner bush and its matching parts will not be damaged during the disassembly process.

Description

A dismantling tool for a blind hole inner liner

technical field

The utility model relates to a dismantling tool, in particular to a dismantling tool for a blind hole inner bush.

Background technique

In the process of the existing blind hole inner bushing, due to the high compression tightness and no suitable force application point, the disassembly method of destroying the bushing by machining is usually used, which is easy to cause damage to the matrix.

Contents of the invention

The purpose of this utility model is to design an inner bush removal tool that can be used without a suitable force application point, the bushing and the matching fitting are tightly pressed together, and the fitting is a blind hole, and the inner bushing and its matching can be realized. Part blind holes are not damaged during disassembly.

The technical scheme of the utility model is: a dismantling tool for a blind hole inner bushing includes a rotatable claw, a fixed claw, a pull rod shaft, a support plate, and a force nut, and the fixed claw is fixedly installed on the bottom of the pull rod shaft, which can The rotating jaws are arranged on the fixed jaws and can rotate around the shaft of the pull rod. The distance from the ends of the rotatable jaws and the fixed jaws to the center of the rod shaft is between the inner and outer diameters of the bushing to be disassembled. The rotatable jaws The upper end face of the end face of the fixed jaw is matched with the bottom of the bush to be disassembled, and the pull rod shaft passes through the support plate, and a force nut is installed thereon. An axial pull pin is arranged above the rotatable jaw on the pull rod shaft. The upper end surfaces of the rotating jaws and the fixed jaws are sloped.

When the utility model is in use, the rotatable jaws and the fixed jaws are first overlapped or located on the same side, put into the lower end surface of the bushing to be disassembled, the rotatable jaws are adjusted to be located at the other end of the fixed jaws, and the support plate is fixed or Set on the upper part of the base body, tighten the force nut on the upper end to drive the claws to fit and fix the end face of the bush to be removed, and continue to disassemble the bush through the force nut and the support plate without any damage. In the absence of a suitable force application point, the utility model pulls the bush upward evenly through the action of the force nut and the claws, so that the blind hole of the inner bush and its matching parts will not be damaged during the disassembly process.

Description of drawings

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

Figure 2 is a schematic diagram of the position of the two jaws in the working state;

Figure 3 is a schematic diagram of the positions of the two jaws in the installed state;

Fig. 4 is a schematic diagram of another improved structure.

Detailed ways

As shown in the figure, a removal tool for a blind hole inner bush includes a rotatable claw 1, a fixed claw 2, a pull rod shaft 3, a support plate 4, and a force nut 5, and the fixed claw 2 is fixedly installed on the pull rod shaft 3 The bottom of the rotatable jaw 1 is set on the fixed jaw 2 and can rotate around the rod shaft 3. The distance from the end of the rotatable jaw and the fixed jaw 2 to the center of the rod shaft 3 is between the bushing to be disassembled 6 Between the inner and outer diameters, the upper end faces of the rotatable jaws 1 and the end faces of the fixed jaws 2 cooperate with the bottom of the bushing 6 to be disassembled, and the pull rod shaft 3 passes through the support plate 4 and is equipped with a force nut 5 . An axial pull pin 7 is arranged above the rotatable jaw 1 on the pull rod shaft 3 . The upper end surfaces of the rotating jaws 1 and the fixed jaws 2 are sloped.

Claims (3)

1. a kind of extracting tool of blind hole neck bush, which is characterized in that the tool includes that can be rotated chela (1), grips pincers Pawl (2), pull rod shaft (3), supporting plate (4), force nut (5), fixed chela (2) are fixedly mounted on the bottom of pull rod shaft (3), can turn Dynamic chela (1) setting is on fixed chela (2) and can rotate around pull rod shaft (3), the rotatable chela and fixed chela (2) The distance at end to pull rod shaft (3) center can be rotated chela (1) and fixed chela between bushing to be removed (6) internal-and external diameter (2) upper surface of end face and axle sleeve to be removed (6) bottom cooperate, and the pull rod shaft (3) passes through supporting plate (4), and is equipped with and applies Power nut (5).

2. a kind of extracting tool of blind hole neck bush as described in claim 1, which is characterized in that be located on pull rod shaft (3) It can be rotated above chela (1) and be provided with axial pulling pin (7).

3. a kind of extracting tool of blind hole neck bush as described in claim 1, which is characterized in that the rotation chela (1) Upper surface with fixed chela (2) end face is inclined-plane.