CN208051807U - A kind of tools for pulling pin - Google Patents

Abstract

The utility model relates to the technical field of tool equipment, in particular to a pin lifting tool. The pin lifting tool of the utility model tightens at least three pin heads on the side wall of the positioning pin by elastic force, so that the force of the positioning pin is uniform and fixed reliably, and is locked simultaneously by a plurality of clamping bolts, thereby Apply pressure downward along the axis of the positioning pin, and at the same time use the reaction force to pull out the positioning pin, so as to realize the rapid and safe extraction of the positioning pin, and will not cause any damage to the positioning pin during the pulling out process; Stepped holes are arranged in the sleeve, so that pin heads of different sizes can be installed on different steps, and suitable pin heads can be replaced at any time according to the outer diameter of the positioning pin.

Description

a pinning tool

technical field

The utility model relates to the technical field of tool equipment, in particular to a pin lifting tool.

Background technique

Various positioning pins are often needed in the parts of the engine. When the assembled positioning pins are disassembled, there is often no good tool to safely pull out the pin body without destroying the structure of the pin body. At present, the commonly used method is to manually use other tools such as pliers to pull it out, or to take it out by destroying the pin body. Too much time is not conducive to improving production and maintenance efficiency.

Utility model content

(1) Technical problems to be solved

The technical problem to be solved by the utility model is to provide a pin removal tool, which can quickly pull out the positioning pin safely and without damage.

(2) Technical solution

In order to solve the above-mentioned technical problems, the utility model provides a pin lifting tool, which includes a support sleeve and at least three handle pin heads, and each of the handle pin heads is respectively inserted into the side wall of the support sleeve through a spring. and one end of each of the handle pin heads is respectively facing the axis of the support sleeve, and an included angle is preset between two adjacent handle pin heads so that all the handle pin heads pass through the elastic force at the same time. The positioning pin is fixed on the axis of the support sleeve; a plurality of tightening bolts are evenly distributed on the circumference of the support sleeve, and the axis of each of the tightening bolts is respectively parallel to the axis of the support sleeve. In order to pull out the positioning pin through the reaction force.

Preferably, the pin head includes a positioning piece and a positioning rod, the positioning piece faces the axis of the positioning area, one end of the positioning rod is connected to the positioning piece, and the other end is inserted into the support sleeve through a spring. inside the side walls.

Preferably, the spring is sleeved outside the positioning rod, and is located between the positioning piece and the inner wall of the supporting sleeve.

Preferably, the positioning piece is an arc-shaped elastic piece.

Preferably, the axis of the positioning rod is perpendicular to the axis of the support sleeve.

Preferably, a positioning area runs through the axis of the support sleeve so as to divide the side wall of the support sleeve into an inner side wall and an outer side wall, and a plurality of installation holes pass through between the inner side wall and the outer side wall, each The mounting holes are all used for mounting the handle pin heads.

Preferably, the positioning area is a stepped hole to divide the inner wall of the support sleeve into a stepped structure, the side of the stepped hole is provided with multiple steps, and the inner wall of each step is provided with There are at least three said mounting holes.

Preferably, the diameters of the mounting holes in the same layer are equal, and the diameters of the mounting holes in adjacent layers are not equal.

Preferably, a plurality of tightening screw holes are provided in the circumferential direction of the supporting sleeve, and the tightening bolts are respectively installed in each of the tightening screw holes.

Preferably, the preset included angles between every two adjacent handle pin heads are equal.

(3) Beneficial effects

The above-mentioned technical solution of the utility model has the following beneficial effects: the pin lifting tool of the utility model tightens at least three pin heads on the side wall of the positioning pin by elastic force, so that the force of the positioning pin is evenly and reliably fixed, And through multiple jacking bolts locked at the same time, so as to apply pressure downward along the axis of the positioning pin, and at the same time use the reaction force to pull out the positioning pin, so as to realize the fast and safe pulling out of the positioning pin, and the positioning pin will be corrected during the pulling out process. The pin will not cause any damage; the tool can install different sizes of pin heads on different steps by setting a stepped hole in the support sleeve, and the appropriate pin head can be replaced at any time according to the outer diameter of the positioning pin.

Description of drawings

Fig. 1 is the structural representation of the pin removal tool of the utility model embodiment;

Fig. 2 is the front view of the support sleeve of the utility model embodiment;

Fig. 3 is the sectional view of A-A of Fig. 2;

Among them, 1. spring; 2. pin head; 3. jacking bolt; 4. support sleeve; 5. step; 6. mounting hole; 7. positioning area; 8. jacking screw hole.

Detailed ways

The implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

In the description of the present utility model, unless otherwise specified, "plurality" means two or more. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" etc. is Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot It should be understood as a limitation of the present utility model.

As shown in Figure 1, a pin removal tool described in this embodiment includes a support sleeve 4 and at least three handle pin heads 2, and each handle pin head 2 is respectively inserted into the support sleeve through a spring 1. 4, and one end of each handle pin head 2 faces the axis of the support sleeve 4 respectively, and an included angle is preset between two adjacent handle pin heads 2, preferably every two adjacent handle pin heads 2 The preset included angles between them are all equal, so that when the positioning pin is on the axis of the support sleeve 4, each pin head 2 can press against the side wall of the positioning pin from different angles, thereby utilizing all the pin heads 2 At the same time, the positioning pin is fixed on the axis of the support sleeve 4 by elastic force; a plurality of jacking bolts 3 are evenly distributed on the circumference of the support sleeve 4, and the axis of each jacking bolt 3 is parallel to the axis of the support sleeve 4 respectively. It is used to pull out the locating pin through the reaction force. By locking multiple jacking bolts 3 at the same time, pressure can be applied downward along the axis of the locating pin at the same time, so the reaction force can be utilized as the jacking bolts 3 are locked. The positioning pin is pulled out to realize fast and safe pulling out of the positioning pin, and the positioning pin will not be damaged in the process of pulling out.

In this embodiment, the pin head 2 includes a positioning piece and a positioning rod, the positioning piece faces the axis of the positioning area 7, one end of the positioning rod is connected to the positioning piece, and the other end is inserted into the side wall of the support sleeve 4 through the spring 1, The positioning rod can provide a guiding effect on the force application of the positioning piece, and at the same time, a sufficient angle is set between the axis of the positioning rod and the axis of the support sleeve 4, so that the positioning piece can apply sufficient thrust to the positioning pin. When the axis is perpendicular to the axis of the support sleeve 4, the positioning piece can exert the maximum thrust force on the side wall of the positioning pin. The spring 1 is sleeved outside the positioning rod, and is located between the positioning piece and the inner wall of the support sleeve 4. The elastic force of the spring 1 is used to provide sufficient pushing force for the positioning piece, and according to the stretching elasticity of the spring 1. The locating pieces of each handle pin head 2 can be adjusted at any time according to the actual outer diameter of the locating pin, so as to ensure the reliable fixing of the tool to the locating pin. Preferably, the positioning piece is an arc-shaped elastic piece, so that it can be attached to the outer wall of the positioning pin.

As shown in Figure 2, a positioning area 7 runs through the axis of the support sleeve 4 to divide the side wall of the support sleeve 4 into an inner side wall and an outer side wall, and a plurality of installation holes 6 pass through between the inner side wall and the outer side wall, each Each mounting hole 6 is used to install the pin head 2, and the number of mounting holes 6 is not less than the number of the pin head 2, so that the pin head 2 can be added as required. In order to ensure reliable positioning, the mounting holes 6 and the pin head The number of 2 is not less than three; a plurality of tightening screw holes 8 are provided on the circumference of the support sleeve 4, and each tightening screw hole 8 is respectively equipped with a tightening bolt 3, preferably each tightening screw hole 8 Through between the upper surface and the lower surface of the support sleeve 4 , a plurality of tightening screw holes 8 are evenly distributed along any radial plane of the support sleeve 4 .

As shown in Figure 3, the positioning area 7 is preferably a stepped hole, so that the inner side wall of the support sleeve 4 is divided into a stepped structure, and the side of the stepped hole is provided with multi-layer steps 5, and each step 5 is provided with at least Three mounting holes 6, so that different size pin heads 2 can be installed on different steps 5, and suitable pin heads 2 can be replaced at any time according to the outer diameter of the positioning pin; preferably, each mounting hole 6 in the same layer The apertures are equal, and the apertures of the mounting holes 6 between adjacent layers are not equal. In this embodiment, there are no less than three mounting holes 6 in each layer. In order to ensure reliable clamping of the positioning pins, The three pin heads 2 are installed in the three mounting holes 6 of the same layer at the same time, so as to ensure that the multi-angle clamping thrust force applied to the positioning pin is in the same horizontal plane, and prevent the positioning pin from overturning when it is clamped, fixed and pulled out .

In this embodiment, the support sleeve 4 is circular, and a stepped cylindrical positioning area 7 is provided through its axis, that is, the positioning area 7 is a stepped hole with three steps 5, and the inner side of each step 5 Three installation holes 6 are respectively arranged on the wall, and the three installation holes 6 are evenly distributed around the step 5 of this layer, that is, the angle between two adjacent installation holes 6 is 120°, and the three pin heads 2 are installed on In the three mounting holes 6 of the same layer, one end of the positioning rod of each pin head 2 is pressed against the side wall of the positioning pin through the positioning piece, and the other end is inserted into the mounting hole 6 and the outside of the self-supporting sleeve 4 The wall protrudes outwards, and a spring 1 is sleeved outside each positioning rod of the pin head 2. One end of the spring 1 is connected to the back of the positioning piece, and the other end is connected to the inner side wall of the step 5 of this layer. When the positioning pin is clamped, each spring 1 is in a compressed state, and the positioning pin is fixed on the axis of the support sleeve 4 by using the compressed energy storage, and at the same time, the further compression of the spring 1 can be used to ensure that the positioning pin can be fixed and disengaged flexibly The positioning piece is an arc-shaped shrapnel, and the front of the positioning piece is adapted to the radian of the outer wall of the positioning pin, so as to be close to the outside of the positioning pin. Three jacking screw holes 8 run through between the upper surface and the lower surface of the support sleeve 4 of this embodiment, and a jacking bolt 3 is installed in each jacking screw hole 8, when the three pin heads 2 clamp the positioning pin When tightening on the axis of the support sleeve 4, tighten the three jacking bolts 3 at the same time, the positioning pin can be pulled out gradually by using the reaction force, and the positioning pin will not be caused any damage.

In summary, the pin lifting tool of this embodiment uses elastic force to tighten at least three pin heads 2 on the side walls of the positioning pins, so that the force of the positioning pins is uniform and reliably fixed, and through multiple tightening The bolts 3 are locked at the same time, so that pressure is applied downward along the axis of the positioning pin, and at the same time, the positioning pin is pulled out by using the reaction force, so as to realize the fast and safe pulling out of the positioning pin, and the positioning pin will not be caused any damage during the pulling out process. damage; the tool is provided with stepped holes in the support sleeve 4, so that pin heads 2 of different sizes can be installed on different steps 5, and suitable pin heads 2 can be replaced at any time according to the outer diameter of the positioning pin.

The embodiments of the invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principle and practical application of the invention, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for particular purposes.

Claims (10)

1. A pin removal tool, characterized in that it comprises a support sleeve and at least three handle pin heads, each of which is movably plugged into the side wall of the support sleeve by a spring, and each of the handle pin heads is One end of the handle pin heads is respectively facing the axis of the support sleeve, and an included angle is preset between two adjacent handle pin heads, so that all the handle pin heads simultaneously fix the positioning pins on the On the axis of the support sleeve; a plurality of tightening bolts are uniformly distributed on the circumference of the support sleeve, and the axes of each of the tightening bolts are respectively parallel to the axis of the support sleeve for positioning the The pin is pulled out by counter force. 2. The pin removal tool according to claim 1, wherein the pin head includes a positioning piece and a positioning rod, the positioning piece faces the axis of the support sleeve, and one end of the positioning rod is connected to the positioning piece connected, and the other end is inserted into the side wall of the support sleeve through a spring. 3 . The pin removal tool according to claim 2 , wherein the spring is sleeved outside the positioning rod and located between the positioning piece and the inner wall of the supporting sleeve. 4 . 4. The pin removal tool according to claim 2, wherein the positioning piece is an arc-shaped elastic piece. 5. The pin removal tool according to claim 2, wherein the axis of the positioning rod is perpendicular to the axis of the supporting sleeve. 6. The pin removal tool according to any one of claims 1-5, characterized in that a positioning area runs through the axis of the support sleeve to divide the side wall of the support sleeve into an inner side wall and an outer side wall , there are a plurality of installation holes passing through between the inner side wall and the outer side wall, and each of the installation holes is used for installing the handle pin head. 7. The pin lifting tool according to claim 6, wherein the positioning area is a stepped hole, so as to divide the inner side wall of the support sleeve into a stepped structure, and the side of the stepped hole is provided with multiple There are several steps, and at least three installation holes are provided on the inner wall of each step. 8 . The pin removal tool according to claim 7 , wherein the diameters of the mounting holes in the same layer are equal, and the diameters of the mounting holes in adjacent layers are not equal. 9. The pin removal tool according to any one of claims 1-5, characterized in that, a plurality of tightening screw holes are provided on the circumference of the support sleeve, each of the tightening screw holes is respectively installed with The jacking bolts. 10. The pin removal tool according to any one of claims 1-5, characterized in that, the preset included angles between every two adjacent handle pin heads are equal.