CN202480043U

CN202480043U - Pin puller

Info

Publication number: CN202480043U
Application number: CN2012200712873U
Authority: CN
Inventors: 詹国平
Original assignee: CHONGQING ZONGXUE HEAVY INDUSTRIES CO LTD
Current assignee: Chongqing xinchenghangrui Technology Co.,Ltd.
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-10-10
Anticipated expiration: 2022-02-28

Abstract

The utility model discloses a pin puller which comprises a cylindrical pull rod, a tup, a pull pin head and a handle. The tug is in sliding connection with the cylindrical pull rod through a central hole of the tug, the pull pin head is disposed on a front end of the cylindrical pull rod, and the handle is positioned on a tail portion of the cylindrical pull rod. The cylindrical pull rod is provided with external threads, and the pull pin head is provided with internal threads. The pull pin head, the cylindrical pull rod and a fixed disk are connected in a detachable mode. The fixed disk facilitates preservation and carrying of a pull pin rod. Different types of the pull pin heads can be flexibly selected according to the inner diameter of a pin fixing hole, and assembly and disassembly of the pull pin head are all simple and convenient. When the pin puller is used, the cylindrical pull rod and the fixed disk are taken apart, and then a suitable big-sized, or middle-sized, or small-sized tup can be chosen to impact according to pulling force of a pull pin. The operation is flexible and convenient and functionality of the pin puller is enhanced so that a pin can be pulled out more quickly and more accurately. Therefore, the pin puller is simple in structure, attractive and elegant in appearance, and strong in universality.

Description

Pin removal

Technical field

The utility model relates to a kind of aid that is used for assembling, maintenance and the dismounting of equipment, particularly a kind of pin removal that is applicable to pin and axle class.

Background technology

Pin mainly plays the location and is connected effect in equipment, pin normally sinks in the pin hole of equipment, and owing to reasons such as the assembling of equipment, maintenance need be extracted pin so that dismantle part usually, so the workload of following closely of pulling pin is bigger.Existing pin removal in use; The head of pulling pin of different model all will pass through M16 screw of welding, and the complete pin removal of a cover is generally by 12 to 14 heads of pulling pin, and a cylindricality pull bar is formed with the bump chunk; So many parts also are not easy to keeping; And the head of pulling pin of a model of every use all need pass through welding, therefore might thereby influence the result of use of pulling pin because of the former of welding quality, and operation is very inconvenient.And the head of pulling pin is easy to fracture, and need look for the bolt of pulling pin of same model to change after fractureing, and it is the problem that generality exists that the bolt of pulling pin that therefore can't find out same model is at short notice replaced, and uses very inconveniently, also delays.The percussion hammer of general pin removal is not replaceable, and when extracting the pin of some big pulling force, might need repeatedly bump for a long time could pin be extracted because the dynamics of percussion hammer is not enough, has therefore also increased operating time and operation easier.

Therefore existing pin removal is improved; Can select the head of pulling pin of different model according to the internal diameter in rationed marketing hole flexibly; And all fairly simple convenience of installation and removal of the head of pulling pin, the keeping of the bolt of also being convenient to pull pin, percussion hammer can be selected the model that adapt with it according to the size of the pulling force of pulling pin; Strengthen the functional of pin removal, so that can extract pin sooner more accurately.

The utility model content

In view of this, the pin removal of the utility model can be selected the head of pulling pin of different model flexibly according to the internal diameter in rationed marketing hole; Can hit according to the percussion hammer that the pulling force size of pulling pin is selected to be fit in the large, medium and small type, because the quantity of the head of pulling pin is many, so fixed disk is convenient to preserve the head of pulling pin of different model; And fixed disk and cylindricality pull bar are to removably connect, and only need when therefore using cylindricality pull bar and fixed disk are taken apart, and the required head of pulling pin of pulling pin on the fixed disk is connected the operation of can pulling pin with the cylindricality pull bar; Simple in structure; Flexible and convenient operation, good looking appearance is generous, highly versatile.

The pin removal of the utility model; Comprise cylindricality cylindricality pull bar and the handle that is slidingly connected at the percussion hammer on the cylindricality cylindricality pull bar and is arranged at the pull pin head and the cylindricality pull bar afterbody of cylindricality pull bar front end through centre bore; Said cylindricality pull bar is an external screw thread, and the said head of pulling pin is internal thread;

Further, said cylindricality pull bar also comprises fixed disk, and said fixed disk is connected with the cylindricality pull bar with the mode that removably connects;

Further, said fixed disk and cylindricality pull bar are for being threaded;

Further, said fixed disk is provided with the head of pulling pin of 2 above different models;

Further, a said axial symmetry of pulling pin is distributed on two right opposites of fixed disk;

Further, the said head of pulling pin is M4～M20 bolt for external diameter;

Further, said handle is provided with spacing;

Further, said percussion hammer is provided with annular knurl with the surface of pull pin head and handle.

The beneficial effect of the utility model: the utility model can be selected the head of pulling pin of different model flexibly according to the internal diameter in rationed marketing hole, can hit according to the percussion hammer that the pulling force size of pulling pin is selected to be fit in the large, medium and small type, because the quantity of the head of pulling pin is many; So fixed disk is convenient to preserve the head of pulling pin of different model; And fixed disk and cylindricality pull bar are to removably connect, and only need when therefore using cylindricality pull bar and fixed disk are taken apart, and the required head of pulling pin of pulling pin on the fixed disk is connected the operation of can pulling pin with the cylindricality pull bar; Simple in structure; Flexible and convenient operation, good looking appearance is generous, highly versatile.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the cross section view of Fig. 1;

Cross section view when Fig. 3 uses for the utility model;

Fig. 4 is the structural representation of the utility model fixed disk.

The specific embodiment

Fig. 1 is the structural representation of the utility model; Fig. 2 is the cross section view of Fig. 1, and the cross section view when Fig. 3 uses for the utility model, Fig. 4 are the structural representation of the utility model fixed disk; As shown in the figure: the pin removal of present embodiment; Comprise cylindricality cylindricality pull bar 1 and through centre bore be slidingly connected at the percussion hammer 2 on the cylindricality cylindricality pull bar 1 and be arranged at cylindricality pull bar 1 front end pull pin 4 with the handle 5 of cylindricality pull bar 1 afterbody, said cylindricality pull bar 1 is an external screw thread, said 4 internal and external threads of pulling pin.

In the present embodiment, said cylindricality pull bar 1 also comprises fixed disk 3; Fixed disk be used to the to pull pin conclusion of head is preserved, and neat and artistic, said fixed disk 3 is connected with cylindricality pull bar 1 with the mode that removably connects; During use fixed disk and cylindricality pull bar 1 taken apart and get final product convenient the use.

In the present embodiment, said fixed disk 3 and cylindricality pull bar 1 are for being threaded; Be convenient to installation and removal.

In the present embodiment, what said fixed disk was provided with different model more than 2 pulls pin 4; That can select as required to adapt pulls pin 4, during use fixed disk 3 and cylindricality pull bar 1 is taken apart, takes off pulling pin of required model on the fixed

disk

3 and 4 is connected with cylindricality pull bar 1 and can carries out operation.

In the present embodiment, the axial symmetry of the said head (4) of pulling pin is distributed on two right opposites of fixed disk (3).

In the present embodiment, saidly pull pin 4 for external diameter is M4～M20 bolt, the screw internal diameter of general pin is M4～M20, highly versatile, the convenient selection and collocation.

In the present embodiment, said handle 5 is provided with spacing;

In the present embodiment, the surface of said percussion hammer 2 surfaces and pull pin 4 surface and handle 5 is provided with annular knurl, plays anti-skidding effect, is convenient to during operation grip, and increases aesthetic property simultaneously.

Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.

Claims

1. pin removal; It is characterized in that: comprise cylindricality pull bar (1) and the handle (5) that is slidingly connected at the percussion hammer (2) on the cylindricality pull bar (1) and is arranged at the pull pin head (4) and cylindricality pull bar (1) afterbody of cylindricality pull bar (1) front end through centre bore; Said cylindricality pull bar (1) is an external screw thread, and the said head (4) of pulling pin is internal thread.

2. pin removal according to claim 1 is characterized in that: said cylindricality pull bar (1) also comprises fixed disk (3), and said fixed disk (3) is connected with cylindricality pull bar (1) with the mode that removably connects.

3. pin removal according to claim 2 is characterized in that: said fixed disk (3) and cylindricality pull bar (1) are for being threaded.

4. pin removal according to claim 3 is characterized in that: said fixed disk is provided with the head (4) of pulling pin of 2 above different models.

5. pin removal according to claim 4 is characterized in that: the axial symmetry of the said head (4) of pulling pin is distributed on two right opposites of fixed disk (3).

6. want 5 described pin removals according to right, it is characterized in that: the said head (4) of pulling pin is M4～M20 bolt for external diameter.

7. pin removal according to claim 6 is characterized in that: said handle (5) is provided with spacing.

8. pin removal according to claim 7 is characterized in that: the surface of said percussion hammer (2) and pull pin head (4) and handle (5) is provided with annular knurl.