CN216803289U

CN216803289U - Heavy pin puller

Info

Publication number: CN216803289U
Application number: CN202220590653.XU
Authority: CN
Inventors: 武红幸; 黄超; 杜颛顼; 王武军
Original assignee: Shaanxi Energy Power Operation Co ltd
Current assignee: Shaanxi Energy Power Operation Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-06-24
Anticipated expiration: 2032-03-17

Abstract

The utility model relates to the technical field of pin extractors and discloses a heavy pin extractor which comprises a pull rod, wherein an impact sleeve is sleeved on the pull rod, a limiting disc is fixedly arranged at one end of the pull rod, a connecting column is fixedly arranged at the other end of the pull rod, a pulling head is detachably connected to the outer wall of the connecting column, and an outer wire is fixedly arranged on one side, back to the pull rod, of the pulling head; during the use, screw into the pin hole with outer silk, then hold the handle on one hand, make on the other hand strike the cover and make a round trip to strike on the pull rod, just can extract the pin, use convenience very, pull out head and outer silk and can change according to the size of pin to be applicable to the pin of equidimension not, to the heavy pin on some heavy machinery, also can be smooth pull out. The utility model has novel design and the advantage of being convenient for pulling out the heavy pin.

Description

Heavy pin puller

Technical Field

The utility model relates to the technical field of pin extractors, in particular to a heavy pin extractor.

Background

When the large-scale equipment is installed, a joint surface of the large-scale equipment needs to use a pin, and the pin is used for positioning and fastening the joint surface or parts of the equipment; the pins are generally of both cylindrical and conical types, and the pins are typically installed by press-in or soft metal knock-in.

When the equipment is overhauled, the pin is required to be pulled out by using the pin puller, so that the equipment can be conveniently disassembled and reassembled; however, in practical use, we find that the conventional pin puller still has certain disadvantages, such as: conventional pin extractors are generally only capable of extracting smaller pins (pins with internal connecting threads between M4-M16), which are difficult to adapt to some heavy pins (pins with internal connecting threads between M16-M41);

based on this, we propose a heavy pin puller.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a heavy pin puller which has the advantage of being convenient for pulling out a heavy pin.

(II) technical scheme

In order to achieve the purpose of facilitating the extraction of the heavy pin, the utility model provides the following technical scheme: the utility model provides a heavy pin puller, includes the pull rod, the cover is equipped with the impact cover on the pull rod, the one end fixed mounting of pull rod has spacing dish, the other end fixed mounting of pull rod has the spliced pole, the outer wall detachable connection of spliced pole has the pulling head, one side fixed mounting that the pulling head dorsad pull rod has outer silk.

As a preferable technical scheme of the utility model, the connecting column is in threaded connection with the inner wall of the pulling head.

As a preferable technical scheme of the utility model, a handle is fixedly arranged on one side of the limiting disc, which is back to the pull rod.

As a preferred technical scheme of the utility model, the connecting column is inserted into the pulling head, a clamping groove is formed on the outer wall of the connecting column, the pulling head is provided with a plurality of positioning bolts along a radial thread, and the tail ends of the plurality of positioning bolts are clamped in the clamping groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a heavy pin puller, which has the following beneficial effects:

1. this heavy pin puller during the use, will go into the outer silk during the pin hole, then the handle is held on one hand, and the impact cover makes a round trip to strike on the pull rod on one hand, just can extract the pin, uses convenience very, and the pullout can be changed according to the size of pin with outer silk to be applicable to the pin of equidimension not, to the heavy pin on some heavy machinery, also can be smooth pull out.

2. This heavy pin puller, threaded connection between pulling head and the spliced pole, the installation is all very convenient with the dismantlement to be convenient for change different pulling heads and outer silk.

3. This heavy pin puller pegs graft mutually between pulling head and the spliced pole to block into through positioning bolt in the draw-in groove and come spacingly, guaranteed the stability that spliced pole and pulling head are connected promptly, also can the relative rotation between pulling head and the pull rod simultaneously, the outer silk of being more convenient for on the one hand is connected with the pin, only need when connecting the rotatory pulling head can, on the other hand pull rod also can the free rotation when assaulting, needn't confine to an angle.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of another embodiment of the present invention;

FIG. 3 is an enlarged view of the connecting column portion of the present invention.

In the figure: 1. a pull rod; 2. an impact sleeve; 3. a limiting disc; 4. connecting columns; 5. pulling out a head; 6. external silk; 7. a handle; 8. a card slot; 9. and (6) positioning the bolt.

Detailed Description

The first embodiment is as follows:

referring to fig. 1, a heavy pin puller includes a pull rod 1, an impact sleeve 2 is sleeved on the pull rod 1, a limiting disc 3 is fixedly installed at one end of the pull rod 1, and the position of the impact sleeve 2 can be limited by the limiting disc 3, so that the impact sleeve 2 is prevented from being separated from the pull rod 1;

the other end of the pull rod 1 is fixedly provided with a connecting column 4, the outer wall of the connecting column 4 is detachably connected with a pulling head 5, and one side of the pulling head 5, which is opposite to the pull rod 1, is fixedly provided with an outer screw 6;

during the use, screw into the pin hole with outer silk 6, then hold spacing dish 3 on one hand, make on one hand and strike cover 2 and make a round trip to strike on pull rod 1, just can extract the pin, use convenience very, pullout 5 and outer silk 6 can be changed according to the size of pin to be applicable to the pin of equidimension not, to the heavy pin on some heavy machinery, pull out that also can be smooth.

Example two:

referring to fig. 2 and 3, a handle 7 is fixedly installed on one side of the limiting disc 3, which is opposite to the pull rod 1, and the handle 7 is held when the device is used, so that the device is more convenient;

as shown in fig. 3, the connecting column 4 is inserted into the drawing head 5, a clamping groove 8 is formed on the outer wall of the connecting column 4, the drawing head 5 is provided with a plurality of positioning bolts 9 along the radial direction, the tail ends of the plurality of positioning bolts 9 are clamped in the clamping groove 8, the drawing head 5 is inserted into the connecting column 4, and the positioning bolts 9 are clamped in the clamping groove 8 for limiting, so that the stability of the connection between the connecting column 4 and the drawing head 5 is ensured, meanwhile, the drawing head 5 and the pull rod 1 can rotate relatively, the connection between the outer wire 6 and the pin is facilitated, the drawing head 5 only needs to be rotated during connection, and on the other hand, the pull rod 1 can also freely rotate along with the movement of an arm during impact, and is not limited to an angle.

The working principle and the using process of the utility model are as follows:

when the pin pulling device is used, the outer wire 6 is screwed into an inner hole of the pin, the handle 7 is held by one hand, the impact sleeve 2 is impacted on the pull rod 1 to and fro by the other hand, the pin can be pulled out, the use is very convenient, and the pulling head 5 and the outer wire 6 can be replaced according to the size of the pin, so that the pin pulling device is suitable for pins with different sizes and can be pulled out smoothly for heavy pins on some heavy machinery;

the pulling head 5 is in threaded connection with the connecting column 4, and the mounting and the dismounting are very convenient, so that different pulling heads 5 and different outer threads 6 are convenient to replace;

the puller 5 is connected with the connecting column 4 in an inserting mode, the locating bolt 9 is clamped in the clamping groove 8 for limiting, the stability of connection of the connecting column 4 and the puller 5 is guaranteed, meanwhile, the puller 5 and the pull rod 1 can rotate relatively, on one hand, connection of the outer thread 6 and a pin is facilitated, only the puller 5 needs to be rotated when connection is conducted, on the other hand, the pull rod 1 can rotate freely when impact is conducted, and the pull rod is not limited to one angle.

Claims

1. The utility model provides a heavy pin puller, includes pull rod (1), the cover is equipped with impact cover (2) on pull rod (1), the one end fixed mounting of pull rod (1) has spacing dish (3), its characterized in that: the other end fixed mounting of pull rod (1) has spliced pole (4), the outer wall of spliced pole (4) can be dismantled and be connected with pulling head (5), one side fixed mounting of pulling head (5) dorsad pull rod (1) has outer silk (6).

2. A heavy pin puller as set forth in claim 1, wherein: the connecting column (4) is in threaded connection with the inner wall of the pulling head (5).

3. A heavy pin puller as set forth in claim 1, wherein: and a handle (7) is fixedly arranged on one side of the limiting disc (3) back to the pull rod (1).

4. A heavy pin puller as set forth in claim 1, wherein: the connecting column (4) is inserted into the pull head (5), a clamping groove (8) is formed in the outer wall of the connecting column (4), the pull head (5) is provided with a plurality of positioning bolts (9) along the radial threads, and the tail ends of the positioning bolts (9) are clamped in the clamping groove (8).