CN2517549Y

CN2517549Y - Bearing puller

Info

Publication number: CN2517549Y
Application number: CN 02228052
Authority: CN
Inventors: 张孝发
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-10
Filing date: 2002-01-10
Publication date: 2002-10-23
Anticipated expiration: 2012-01-10

Abstract

The utility model discloses a puller for disassembling the bearings based on the working principle of using a spiral mechanism, comprising a boosting rod (1), a threaded rod (2), a rotary pulling pawls part (3), a handle (4) and a main body (5). The adjustable handle (4) can rotate the pulling pawls part for closing up and spreading out, the bearing inner bore is easily entered to disassemble the bearing. The utility model has the advantages of reasonable design, simple structure, convenient operation and low costs.

Description

Bearing puller

The utility model is a kind of hand disassembly instrument, is specially a kind of bearing puller that is used to dismantle bearing.

In repair of machine and auto repair, bearing can be run into and bearing block closely cooperates, and bearing block is the situation of enclosed (being commonly called as blind hole).For example, the block bearing between center, automobile engine crankshaft rear end and the clutch spindle is exactly an exemplary.At this moment, just need one to enter the instrument that bearing is pulled out from brearing bore.At present, the external inner bearing of producing draws tool, puts into brearing bore, after hook opens, only have only three millimeter to contact, usually take off to collude during work and skid off poor reliability with bearing plane, and the utility model can make the inside and outside circle of bearing simultaneously stressed, the reliability height, and easily pull out.

The purpose of this utility model is to design low, the easy manufacturing of a kind of cost, bearing puller easy to use.

Operation principle of the present utility model is a screw mechanism that utilizes, when screw rod turns clockwise its bottom when having withstood bearing block, or else screw rod can do axially-movable, can only rotate, at this moment main body (being nut) then moves upward along axis direction, thereby bearing is pulled out together.

Below in conjunction with accompanying drawing the utility model is explained

Figure (1) is a cutaway view of the present utility model

Figure (2) closes up the schematic diagram of state for the utility model rotation pulling claw body

Figure (3) is the schematic diagram of the utility model rotation pulling claw body open configuration

The utility model is made up of five parts, and it comprises boosting-rod (1), screw rod (2), rotation pulling claw body (3), hand bright (4) and main body (5).The center of main body (5) is a circular hole that has internal thread, be equipped with a rotating screw bolt (2) that has screw thread on it in the circular hole, be equipped with a boosting-rod (1), main body (5) in the circular hole that the upper end of rotating screw bolt (2) has and upward also have two and centrosymmetric through hole, the rod section of rotation pulling claw body (3) is placed in its through hole, the bottom of rotation pulling claw body (3) is the pulling claw of a semi-round ring shape, the trough that the top of pull bar has one bright with hand (4) to match, one end of hand bright (4) has a U type groove, makes it and pull bar energy interference fits.

When using the utility model, earlier hand bright (4) is adjusted to and enters bearing state, pulling claw closes up, and enters bearing, is adjusted to duty again, at this moment pulling claw can open fully, hold the inner ring and the outer ring of bearing simultaneously, clockwise rotate boosting-rod (1) then, make screw rod (2) rotation, bearing and main body move up simultaneously, and bearing is disassembled out very soon.

Claims

1, a kind of bearing puller, comprise boosting-rod (1) in it is characterized in that forming, screw rod (2), rotation pulling claw body (3), hand bright (4) and main body (5), the center of main body (5) is a circular hole that has internal thread, be equipped with a rotating screw bolt (2) that has screw thread on it in the circular hole, two and centrosymmetric through hole are arranged on the main body (5), the rod section of rotation pulling claw body (3) is placed in its through hole, the bottom of rotation pulling claw body is the pulling claw of a semi-round ring shape, the trough that the top of pull bar has one bright with hand (4) to match, an end of hand bright (4) have a U type groove.

2, bearing puller according to claim 1, it is characterized in that rotating pulling claw body (3) can bright by hand (4) regulate, and when entering bearing, pulling claw closes up, and during duty, pulling claw opens.