The puller structure that completes two working processes with a single driving force based on the dead point position

Abstract

The invention relates to the field of mechanical tools, a puller structure that completes two working processes based on a single driving force at a dead point position, wherein there is a mounting hole in the middle of the beam, and light holes are distributed around the mounting hole, and the push rod passes through the mounting hole The beam can move axially in the installation hole. The slideway assembly includes a connecting structure, a top plate and at least 2 sets of slideways. The slideway is a cylindrical structure, and the two ends of the slideway are fixedly connected to the top plate and the connecting structure, and multiple groups of slides are parallel to each other, the slides in the slide assembly pass through the light holes one by one, the connecting structure is fixedly connected to the front section of the push rod, the slides are sleeved on the slides, and the slides are located The side away from the front section of the push rod; the beam has a through hole, the claw is inserted into the through hole, the first end of the claw is a free end for holding the object to be pulled, the connecting The two ends of the rod are respectively hinged on the second end of the claw and the slide block.

Description

Technical field[0001]The present invention relates to the field of mechanical tools, in particular a Rama structure.Background technique[0002]During the assembly process, due to various demands often appear, such as the cooperation of bearings, couplings, shafts and holes, the mating of the belt wheel and the shaft, but it is difficult to disassemble it once in one of the components. Often change the entire part, resulting in unnecessary waste and money loss. The reason why the entire throw away is that the components of the profile are often difficult to disassemble. Under the premise of do not destroy the components, it is difficult to separate a sufficiently large axial drawing force.[0003]At this time, Lama came into being, and Rama consists of two key modules, jaws and ball screws. The claw is the structure of the tensioning components; the ball screw is the structure of the applied force from the drawing force into the shaft based on the shaft, and its function is to convert t...

AI Technical Summary

Problems solved by technology

[0006] 1. The process is cumbersome. First, the claws must be manually clamped to the parts, and then the screw is screwed. If the hinges of the claws are loose, one person cannot complete the whole process. It is necessary to press the claws to the parts manually, and wait until the top of the screw Apply force to the part before releasing it

[0007] 2. It is not possible to disassemble some parts with uneven end faces of the claws.

For example, a car generator pulley (such as figure 2 As shown), the pulley is fixed on the automobile generator shaft through interference fit and the nut at the shaft end, but the distance between the pulley and the generator casing is too far, so that the claws of the puller cannot extend into the inner end surface of the pulley. At this time, the puller can only Clamp the inner side of the outer end surface of the pulley, and the secondary end surface is an uneven end surface, and the claws cannot be clamped tightly

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