CN208051807U

CN208051807U - A kind of tools for pulling pin

Info

Publication number: CN208051807U
Application number: CN201721794364.7U
Authority: CN
Inventors: 赵海存; 袁彬; 李江南; 于良会
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2018-11-06
Anticipated expiration: 2027-12-20

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 kind of tools for pulling pin

Technical field

The utility model is related to tool-class equipment technical field more particularly to a kind of tools for pulling pin.

Background technology

All kinds of positioning pins are usually needed in the parts of engine, when being dismantled to the positioning pin assembled, often There is no good tool that can extract shank safely under the premise of not destroying shank structure.Currently used method is hand It is dynamic to be extracted using other tools such as pliers, or destroy the mode of shank and be drawn off, this recycling pole to positioning pin To be unfavorable, and the mode for pulling pin or destroying manually shank structure is required for consumption more time, is unfavorable for improving production and dimension Repair efficiency.

Utility model content

(1) technical problems to be solved

The technical problem to be solved by the present invention is to provide a kind of tools for pulling pin, are capable of positioning for safety and nondestructive wound Pin is quickly extracted.

(2) technical solution

In order to solve the above-mentioned technical problem, the utility model provides a kind of tools for pulling pin, including supporting sleeve and at least three One or two plunger, it is each described that plunger is plugged on by the way that spring is movable in the side wall of the supporting sleeve respectively and each described One end of plunger is respectively facing the axis of the supporting sleeve, adjacent two are described being preset with angle between plunger, so that It is all described positioning pin to be fixed on the axis of the supporting sleeve by elastic force by plunger simultaneously；In the week of the supporting sleeve It is evenly equipped with multiple puller bolts upwards, the axis of each puller bolt is parallel with the axis of the supporting sleeve respectively, is used for The positioning pin is extracted by reaction force.

Preferably, described plunger includes locating plate and locating rod, the locating plate towards the localization region axis, One end of the locating rod is connect with locating plate, and the other end is inserted by spring in the side wall of the supporting sleeve.

Preferably, the spring pocket is outside the locating rod, and is located at the inner wall of the locating plate and the supporting sleeve Between.

Preferably, the locating plate is arc-shaped shrapnel.

Preferably, the axis perpendicular of the axis of the locating rod and the supporting sleeve.

Preferably, it is through with a localization region on the axis of the supporting sleeve, the side wall of the supporting sleeve is divided into interior Side wall and lateral wall are through with multiple mounting holes between the madial wall and lateral wall, each mounting hole is used to install It is described plunger.

Preferably, the localization region is a stepped hole, and the madial wall of the supporting sleeve is divided into step structure, The side of the stepped hole is equipped with multilayer steps, and at least three mounting holes are equipped on the madial wall of every layer of step.

Preferably, the aperture of each mounting hole in identical layer is equal, each mounting hole between adjacent layer Aperture between it is unequal.

Preferably, the circumferential direction of the supporting sleeve holds out against screw hole equipped with multiple, and each described hold out against in screw hole is installed respectively There is the puller bolt.

Preferably, each two adjacent default angle between plunger is equal.

(3) advantageous effect

The above-mentioned technical proposal of the utility model has the advantages that：The tools for pulling pin of the utility model will at least three One or two plunger is held out against using elastic force on the side wall of positioning pin, to make the uniform force of positioning pin, be reliably fixed, and by more A puller bolt is locked simultaneously, to which the axis along positioning pin is downwardly applied to pressure, while being pulled out positioning pin using reaction force Go out, and then realize and fast and safely extract positioning pin, and any damage will not be caused to positioning pin in withdrawal process；The tool It is various sizes of plunger so as to be installed on different steps by the way that stepped hole is arranged in supporting sleeve, it can be according to positioning The outer diameter of pin is replaced suitably at any time plunger.

Description of the drawings

Fig. 1 is the structural schematic diagram of the tools for pulling pin of the utility model embodiment；

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

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

Wherein, 1, spring；2, plunger；3, puller bolt；4, supporting sleeve；5, step；6, mounting hole；7, localization region； 8, screw hole is held out against.

Specific implementation mode

The embodiment of the utility model is described in further detail with reference to the accompanying drawings and examples.Following embodiment For illustrating the utility model, but cannot be used for limiting the scope of the utility model.

In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.Term The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than Indicate or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot It is construed as a limitation of the present invention.

As shown in Figure 1, a kind of tools for pulling pin described in the present embodiment, which includes supporting sleeve 4 and at least three pin First 2, every one or two plunger 2 is plugged on by the way that spring 1 is movable in the side wall of supporting sleeve 4 respectively, and one end of each one or two plunger 2 point Not towards the axis of supporting sleeve 4, angle is preset between two one or two adjacent plungers 2, it is preferably each two adjacent plunger 2 it Between default angle be equal, to when positioning pin is located on the axis of supporting sleeve 4, every one or two plunger 2 can be distinguished never Same angle holds out against the side wall of positioning pin, to which positioning pin is fixed on support by plunger 2 by elastic force simultaneously using all On the axis of set 4；Be evenly equipped with multiple puller bolts 3 in the circumferential direction of supporting sleeve 4, the axis of each puller bolt 3 respectively with branch The axis of support set 4 is parallel, for extracting positioning pin by reaction force, is locked simultaneously by multiple puller bolts 3, can be along The axis of positioning pin is downwardly applied to pressure simultaneously, so can utilize reaction force that will position with the locking of puller bolt 3 Pin is extracted, and fast and safely extracts positioning pin to realize, and will not cause any damage to positioning pin in withdrawal process.

Include locating plate and locating rod plunger 2, locating plate is towards the axis of localization region 7, locating rod in the present embodiment One end connect with locating plate, the other end is inserted by spring 1 in the side wall of supporting sleeve 4, and locating rod can be to locating plate Force provides guiding role, while enough angles being arranged between the axis of locating rod and the axis of supporting sleeve 4, in order to position Piece can apply enough jacking force to positioning pin, when the axis perpendicular of the axis of locating rod and supporting sleeve 4, locating plate energy It is enough to apply maximum jacking force on the side wall of positioning pin.Spring 1 is sleeved on outside locating rod, and is located at locating plate and supporting sleeve 4 Inner wall between, enough jacking force are provided for locating plate using the elastic force of spring 1, and according to the telescopic resilience of spring 1.So that The locating plate of each one or two plunger 2 can at any time be adjusted according to the actual outside diameter of positioning pin, it is ensured that the tool can to positioning pin By fixation.Preferably, locating plate is arc-shaped shrapnel, so as to be attached on the outer wall of positioning pin.

As shown in Fig. 2, being through with a localization region 7 on the axis of supporting sleeve 4, the side wall of supporting sleeve 4 is divided into inside Wall and lateral wall are through with multiple mounting holes 6 between madial wall and lateral wall, each mounting hole 6 is used to installing handle plunger 2, The quantity of mounting hole 6 is no less than the quantity plunger 2, in order to be added as needed on a plunger 2, in order to ensure that positioning is reliable, Mounting hole 6 and the quantity of plunger 2 is all no less than three；In the circumferential direction of supporting sleeve 4 screw hole 8, Mei Geding is held out against equipped with multiple Be separately installed with puller bolt 3 in tight screw hole 8, preferably it is each hold out against screw hole 8 through supporting sleeve 4 upper and lower surface it Between, and multiple screw holes 8 that hold out against are uniformly distributed along any sagittal plane of supporting sleeve 4.

As shown in figure 3, localization region 7 is preferably a stepped hole, the madial wall of supporting sleeve 4 is divided into ladder-like knot Structure is equipped with multilayer steps 5 in the side of stepped hole, at least three mounting holes 6 is equipped on every layer of step 5, so as in difference It installs various sizes of plunger 2 on step 5, and is replaced at any time suitably plunger 2 according to the outer diameter of positioning pin；Preferably, The aperture of each mounting hole 6 in identical layer is equal, unequal, this reality between the aperture of each mounting hole 6 between adjacent layer It applies in example, the mounting hole 6 in each layer is all no less than three, and in order to ensure the reliable grip to positioning pin, three same plunger 2 When in three mounting holes 6 of same layer, to ensure the multi-angle applied to positioning pin clamping jacking force in same level In face, prevent positioning pin from toppling when being fixedly clamped and extracting.

In the present embodiment, supporting sleeve 4 is circular ring shape, runs through at axle center and is equipped with a ladder-like cylindrical localization region 7, i.e., The localization region 7 is a stepped hole with three layers of step 5, is respectively provided with three mounting holes 6 on the madial wall of every layer of step 5, three A mounting hole 6 is uniformly arranged around this layer of step 5, i.e., the angle between adjacent two mounting holes 6 is 120 °, and three plunger 2 are mounted in three mounting holes 6 of same layer, and one end of the locating rod of every one or two plunger 2 is held out against by locating plate in positioning pin Side wall on, the other end is inserted into mounting hole 6 and the lateral wall of self-supporting set 4 runs through stretch out outward, in every one or two plunger 2 It is set with outside locating rod there are one spring 1, one end of the spring 1 is connected to the back of locating plate, and the other end is connected to the layer On the madial wall of step 5, in clamping and positioning pin, each spring 1 is consolidated positioning pin all in compressive state, using compressed energy-storage It is scheduled on the axis of supporting sleeve 4, while further compress of spring 1 can be utilized to can ensure that positioning pin can be fixed flexibly and de- From；Locating plate is arc-shaped shrapnel, and the front of the locating plate is adapted with the outer wall radian of positioning pin, is being positioned in order to be adjacent to Pin is outer.Through there are three screw hole 8 is held out against between the upper and lower surface of the supporting sleeve 4 of the present embodiment, each hold out against in screw hole 8 One puller bolt 3 is installed, when three positioning pin being clamped on the axis of supporting sleeve 4 by plunger 2, while tightening three tops Tight bolt 3, can gradually be extracted positioning pin using reaction force, and will not cause any damage to positioning pin.

In conclusion the tools for pulling pin of the present embodiment holds out against plunger 2 at least three in the side of positioning pin using elastic force It on wall, to make the uniform force of positioning pin, be reliably fixed, and is locked simultaneously by multiple puller bolts 3, to along positioning pin Axis be downwardly applied to pressure, while positioning pin being extracted using reaction force, and then realize and fast and safely extract positioning pin, And any damage will not be caused to positioning pin in withdrawal process；The tool by the way that stepped hole is arranged in the supporting sleeve 4, so as to It installs various sizes of plunger 2, can at any time be replaced suitably plunger 2 according to the outer diameter of positioning pin on different steps 5.

The embodiments of the present invention provide for the sake of example and description, and are not exhaustively or to incite somebody to action The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art See.Selection and description embodiment are and to make this field to more preferably illustrate the principles of the present invention and practical application Those of ordinary skill is it will be appreciated that various embodiments with various modifications of the utility model to design suitable for special-purpose.

Claims

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.