CN207387560U - A kind of anti-dropout adjustable puller - Google Patents

Abstract

The utility model belongs to the technical field of workpiece dismantling tools, and in particular relates to an adjustable puller for preventing falling off, comprising a bracket body, a threaded top wire and a pull claw arranged parallel to the threaded top wire; Matching threaded through holes; the bracket body is also provided with a sliding slot extending to the end of the bracket body; the threaded top screw is provided with a rotation adjustment block; the pull claw includes a rod body, and the rod body is connected to the threaded top screw Symmetrical, the top of the rod body passes through the bracket body and the top of the rod body is provided with a stop body, the stop body extends forward and backward along the direction perpendicular to the sliding channel, the rod body moves horizontally along the extending direction of the sliding channel, and the bottom of the rod body is provided with a hook body, the hook body The top surface is perpendicular to the rod body. This utility model mainly solves the problem that the contact surface between the hook body of the pull claw and the workpiece becomes smaller through the arc movement of the pull claw of the traditional puller relative to the bracket, which easily causes the workpiece to fall off. At the same time, it has the structure Reasonable, simple design, easy to assemble and disassemble.

Description

An anti-shedding adjustable puller

technical field

The utility model belongs to the technical field of workpiece removal tools, and in particular relates to an adjustable anti-falling puller.

Background technique

Pullers are widely used in the disassembly of round workpieces such as bearings, gears, pulleys, etc., and have the characteristics of convenience and labor saving. Commonly used pullers are composed of a hook body, a bracket and a top wire. The hook body and the claw are connected by bolts. The hook body moves in an arc around the fixing bolt to adjust the size of the opening to fit the disassembled workpiece.

The Chinese patent with the publication number CN206254117U discloses a two-claw puller, which includes a vertically arranged push screw, on which a horizontally arranged columnar bracket is threaded, and the two ends of the horizontal direction of the bracket pass through the hinge shaft respectively. There are hook bodies hinged, and the two hook bodies are arranged symmetrically on both sides of the push screw rod. The two hinge axes are parallel to each other and perpendicular to the push screw rod. Connection, the bolt passes through the through hole, is inserted into the threaded hole, and is threadedly connected with the threaded hole. After the hook bodies of the two hook bodies hook the ring-shaped workpiece, the distance between the two hook bodies can be adjusted through bolts, so that the two hook bodies will not be separated from the ring-shaped workpiece by themselves.

When the above-mentioned two-jaw puller disassembles the workpiece, since the hook body moves in a circular arc through the hinge shaft, the claw hook rotates with the rotation of the hook body. When the distance between the claw hooks increases, the claw hook and the pulled There is a certain angle between the workpieces, which will make the claw hook and the workpiece tilt relative to each other, making the contact surface smaller, which will easily cause the puller to drop and damage the contact surface of the pulled workpiece.

Utility model content

The utility model provides an adjustable anti-falling puller, which mainly solves the problem that the contact surface between the hook body of the pull claw and the workpiece becomes smaller and the workpiece falls off easily due to the arc movement of the pull claw of the traditional puller relative to the bracket. .

In order to achieve the above purpose, the utility model designs an anti-falling adjustable puller, which includes a bracket body, a threaded top wire and a pull claw arranged parallel to the threaded top wire;

The middle part of the bracket body is provided with a threaded through hole adapted to the threaded top screw; the bracket body is also provided with a sliding slot extending toward the end of the bracket body;

The threaded top screw is provided with a rotating adjustment block;

The pull claw includes a rod body, and the rod body is symmetrical about the threaded jackscrew, the top of the rod body passes through the bracket body and the top of the rod body is provided with a stop body, the stop body extends forward and backward along a direction perpendicular to the sliding channel, and the rod body extends along the sliding channel The direction of movement is horizontal, the bottom of the rod body is provided with a hook body, and the top surface of the hook body is perpendicular to the rod body.

Specifically, the bottom end of the threaded jackscrew is in the shape of an inverted cone; the threaded jackscrew is used to abut the fixed workpiece, and by rotating the threaded jackscrew to move axially along the threaded through hole, the threaded jackscrew and the fixed workpiece can be aligned. Adjust the distance.

Specifically, the rotation adjustment block and the threaded screw are integrally formed, and the rotation adjustment block can be a hexagonal nut, or a rotation adjustment block with a horizontal through hole. The wire is rotated to adjust.

Specifically, the diameter of the rod body is less than or equal to the width of the sliding channel. When in use, the pulling claw is passed downward from the upper end of the sliding channel, and the stop body is used to fix the pulling claw on the bracket body.

Specifically, the hook body is symmetrical about the threaded jacking screw, the hook body can be clamped on the outer circumference or the inner wall of the workpiece to be pulled, and can be applied to different workpieces to be pulled.

Specifically, a scale line is provided on the side of the support body, and the scale line can be set at the upper end or the lower end of the side surface of the support body, and the distance between the pull claws can be determined by setting the scale line.

The anti-falling adjustable puller of the utility model is composed of a horizontally arranged bracket body, a vertically arranged top wire and a vertically arranged pull claw, and two pull claws or three pull claws can be arranged at equal intervals along the circumference of the bracket body. The claw can be regarded as a two-claw puller or a three-claw puller;

The center of the support body is provided with a vertical threaded through hole, and the threaded jackscrew moves axially along the threaded through hole. The support body is provided with a sliding channel extending toward its end. groove;

The bottom end of the threaded jackscrew is an inverted cone, which is used for jacking the workpiece. The top of the threaded jackscrew is a rotary adjustment block. The rotary adjustment block can be a nut with a built-in hexagon or an external hexagon, or a horizontal through hole and a through hole. An adjustment block with an adjustment rod is worn inside;

The pull claw includes an upper block body, a middle rod body, and a lower hook body. The rod body can be set in a cylindrical or square column shape; the block body can be cylindrical or rectangular to prevent the pull claw from coming out downwards. The block body can be It is integrally formed with the rod body, and a socket or a threaded through hole whose opening direction is perpendicular to the extending direction of the sliding channel can also be set on the upper part of the rod body, and a strip-shaped or column-shaped stopper is introduced into the opening to realize the horizontal movement of the claw along the sliding channel. The purpose of the movement: when in use, the pull claw is passed vertically downward from the upper opening of the sliding channel, or is horizontally inserted from the port of the open sliding channel opened at the end of the bracket body, and then inserted into the rear stop It abuts against the upper end surface of the bracket body, the stop body extends along the front and back directions, and the contact surface between the hook body and the workpiece is perpendicular to the axial centerline of the rod body;

The scale line provided on the side of the bracket body is used to determine the distance between the pulling claw and the threaded jackscrew, so that the pulling claw can be symmetrical to the threaded jackscrew during use, so as to realize the smooth pulling of the workpiece to be pulled.

The beneficial effects of the utility model are:

The anti-falling adjustable puller described in the utility model is mainly used for the disassembly of the set workpiece. When in use, the hook body is clamped to the outer end or inner end of the pulled workpiece, and the central axis of the fixed workpiece is fixed with a threaded jacking screw. Rotate the top screw to realize the pulling of the workpiece to be pulled. When adjusting the distance between the claws, the parallel movement of the pull claws relative to the threaded top wire can be realized. Since the hook body is perpendicular to the axial centerline of the pull claws, the pull can be ensured. The size of the contact surface between the hook body and the workpiece does not change, and the contact surface does not tilt, so as to prevent the workpiece from being damaged due to falling off; the utility model is suitable for different pulling environments, and has the characteristics of reasonable structure, simple design, and easy disassembly .

Description of drawings

Figure 1 is a schematic diagram of the connection between the anti-falling adjustable puller and the dismounting workpiece described in the utility model;

FIG. 2 is a top view of FIG. 1 .

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited thereto.

Example 1

As shown in Figure 1-2, a fall-off-proof adjustable puller includes a horizontally arranged cuboid support body 1, a vertically arranged threaded jackscrew 2 and a pull claw arranged parallel to the threaded jackscrew; in this embodiment for a two-claw puller;

The middle part of the bracket body 1 is provided with a threaded through hole compatible with the threaded jackscrew 2, and the lower end of the threaded jackscrew 2 passes through the bracket body 1 and extends out of the bracket body 1; the bracket body 1 is also provided with a longitudinal bracket A rectangular parallelepiped sliding slot 4 extending horizontally at the end of the body 1 (that is, the sliding slot 4 runs through the bracket body 1 up and down);

The top of the threaded jackscrew 2 is provided with a rotary adjustment block 5;

The pull claw includes two parallel rods 31, and the rods 31 are symmetrical about the threaded jackscrew 2, the top of the rods 31 passes through the bracket body 1 and the top of the rods 31 is provided with a stop body 33, and the stop body 33 is vertical to the sliding groove 4 The direction of the rod body 31 extends forward and backward, and the rod body 31 moves horizontally along the extending direction of the sliding slot 4 .

The bottom end of the threaded jackscrew 2 is in the shape of an inverted cone; the threaded jackscrew 2 is used to abut the fixed workpiece 6, and by turning the threaded jackscrew 2 to move axially along the threaded through hole, the threaded jackscrew 2 and the The distance between the fixed workpieces 6 is adjusted.

The rotation adjustment block 5 is integrally formed with the threaded jackscrew 2 , and the rotation adjustment block 5 is set as an outer hexagonal nut to adjust the rotation of the threaded jackscrew 2 .

The diameter of the rod body 31 is consistent with the width of the sliding slot 4 . When in use, the pull claw is passed downward from the upper end of the sliding slot 4 , and the blocking body 33 is used to fix the pull claw on the support body 1 .

The hooks 32 are symmetrical with respect to the threaded jackscrew 2 , and the hooks 32 are arranged opposite to each other, and the hooks are clipped to both ends of the workpiece 7 to be pulled.

The front side of the support body 1 is provided with a scale line, and the scale line is located at the upper end of the side surface of the support body 1, and the distance between the two pull claws can be determined by setting the scale line.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (6)

1. a kind of anti-dropout adjustable puller, which is characterized in that including stake body, screw thread jackscrew and parallel to the setting of screw thread jackscrew Pulling claw；

The tapped through hole being adapted with screw thread jackscrew is equipped in the middle part of the stake body；The stake body is additionally provided with to stake body end The sliding channel of extension；

The screw thread jackscrew is equipped with rotation adjusting block；

The pulling claw includes the body of rod, and the body of rod is symmetrical on screw thread jackscrew, is equipped at the top of the body of rod through stake body and body of rod top Block body, block body before and after the direction of sliding channel along extending, and the body of rod is along sliding channel extending direction horizontal movement, bar Body bottom, which is equipped with, hooks body, hooks body top surface perpendicular to the body of rod.

2. anti-dropout adjustable puller according to claim 1, which is characterized in that the screw thread jackscrew bottom is back taper.

3. anti-dropout adjustable puller according to claim 1, which is characterized in that the rotation adjusting block and screw thread jackscrew one Shaping.

4. anti-dropout adjustable puller according to claim 1, which is characterized in that the shank diameter is less than or equal to sliding channel Width.

5. anti-dropout adjustable puller according to claim 1, which is characterized in that the hook body is symmetrical on screw thread jackscrew.

6. anti-dropout adjustable puller according to claim 1, which is characterized in that the stent body side surface is equipped with graduation mark.