CN213445953U

CN213445953U - Automatic pin puller

Info

Publication number: CN213445953U
Application number: CN202022254445.6U
Authority: CN
Inventors: 王瑞; 任紫亭; 陈建生; 郑岩; 吕红伟; 崔启发
Original assignee: Yangquan Coal Industry Group Huayue Machinery Co ltd
Current assignee: Yangquan Coal Industry Group Huayue Machinery Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-15
Anticipated expiration: 2030-10-12

Abstract

The utility model relates to an automatic pin puller, including hoist engine, support, pull rod, drop-and-shake hammer and work platform, the support is provided with two, fixes respectively at the left and right ends of work platform, the pull rod slides and sets up on two supports, and the one end of pull rod is provided with the round pin shaft connecting piece, and the other end of pull rod is provided with stop device, stop device is located between two supports, the drop-and-shake hammer sets up between the support of the side at stop device and round pin shaft connecting piece place, and the pull rod passes from the centre bore of the drop-and-shake hammer that can do reciprocating motion on the pull rod; the two winches are respectively and fixedly arranged at two ends of the working platform, and pull ropes of the two winches are respectively connected with the swinging hammer; the utility model no longer uses manpower to transmit power, saves time and labor, and is safe and reliable; the utility model relates to a extracting tool technical field.

Description

Automatic pin puller

Technical Field

The utility model relates to a extracting tool technical field, more specifically say, relate to an automatic pin puller.

Background

Under the general condition, the round pin axle of large-scale mechanical equipment is also great, and traditional dismantlement mode uses the hydraulic press to push out the round pin axle usually, but still has the round pin axle that a lot of hydraulic presses can't be dismantled, mostly uses the hammer that throws away this moment, relies on the impact force of throwing away the hammer to tear down the large-scale round pin axle that is difficult to dismantle. However, under the current situation, the pin shaft is disassembled by using the throwing hammer by manpower, on one hand, the throwing hammer is relatively labor-consuming, on the other hand, the throwing hammer is relatively heavy, and certain hidden dangers exist in the aspect of safety.

Therefore, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the automatic pin puller which does not need manpower to transmit power, is time-saving and labor-saving, and is safe and reliable is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be:

an automatic pin puller comprises a winch, a bracket, a pull rod, a drop hammer and a working platform; the two supports are respectively fixed at the left end and the right end of the working platform, the pull rod is arranged on the two supports in a sliding mode, one end of the pull rod is provided with a pin shaft connecting piece, the other end of the pull rod is fixedly provided with a limiting device, the limiting device is positioned between the two supports, the flail hammer is arranged between the limiting device and the support on the side where the pin shaft connecting piece is located, and the pull rod penetrates through a center hole of the flail hammer which can do reciprocating motion on the pull rod; the two winches are respectively and fixedly arranged at two ends of the working platform, and pull ropes of the two winches are respectively connected with one end of the throwing hammer.

Further, the upper ends of the supports are provided with sleeves, and the pull rods are respectively in sliding fit with the sleeves of the two supports.

Furthermore, the winch close to the pin shaft connecting piece is a return winch, the winch far away from the pin shaft connecting piece is a working winch, and one end of the pull rod close to the working winch is provided with a positioning device.

Further, the power of the working winch is larger than that of the return winch.

Furthermore, a limit switch connected with the working winch is arranged on the limit device.

Furthermore, a limit switch connected with the return winch is arranged on the support on the side where the pin shaft connecting piece is located.

Furthermore, handles are arranged on the upper side and the lower side of the drop hammer, and the working winch and the return winch are connected with the upper handle and the lower handle of the drop hammer respectively.

Furthermore, the pin shaft connecting piece and the pull rod are detachably connected.

The working principle is as follows: the pin shaft connecting piece on the pull rod is connected with a pin shaft to be pulled, a working winch is started, the working winch pulls a throwing hammer to move on the pull rod through a pull rope until the throwing hammer strikes a limiting mechanism of the pull rod, the pin shaft is pulled out through the pull rod, a limiting switch on the limiting device is triggered after the throwing hammer strikes the limiting device, the limiting switch controls the working winch to stop working, meanwhile, a return winch is started to work, the return winch pulls the throwing hammer to move on the pull rod in the opposite direction through the pull rope until the throwing hammer triggers the limiting switch on a support, the return winch stops working, resetting is completed, and one-time pin pulling action is completed.

Compared with the prior art, the utility model beneficial effect who has does:

the utility model is suitable for a pull out of various large-scale round pin axles, through the whipping and the resetting of hoist engine control flail hammer, the pin puller adopts flail hammer formula pin puller, realizes the whipping of flail hammer with the hoist engine control flail hammer, through the stop device of flail hammer striking pull rod, drives the pull rod pin puller. The manual intervention is reduced, the time and labor are saved, the manual participation is reduced, the pin disassembling operation process is safer and more reliable, the problems that the time and the labor are wasted in the disassembling process of the existing large pin shaft, and certain potential safety hazards exist simultaneously are solved.

Drawings

The following will explain in further detail embodiments of the present invention with reference to the accompanying drawings.

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

In the figure: 1. the device comprises a return winch, 2, supports I, 3, a pull rod, 4, a swinging hammer, 5, a working platform, 6, supports II, 7, a working winch, 8, a pin shaft connecting piece, 9, a limiting device and 10, and a positioning device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1, an automatic pin puller comprises a working winch 7, a return winch 1, a bracket I2, a bracket II6, a pull rod 3, a drop hammer 4 and a working platform 5; the fixed left end that sets up at work platform 5 of support I2, the fixed right-hand member that sets up at work platform 5 of support II6, support I2 and support II 6's upper end all are provided with the sleeve, pull rod 3 passes the sleeve and slides and set up on support I2 and support II6, and the one end that is close to support I2 of pull rod 3 is provided with round pin shaft connector 8, and round pin shaft connector 8 is connected for dismantling with pull rod 3, to different round pin axles, removable different round pin shaft connector. The other end of the pull rod 3 is fixedly provided with a limiting device 9, the limiting device 9 is positioned between a bracket I2 and a bracket II6, the flail hammer 4 is arranged between the limiting device 9 and a bracket I2, and the pull rod 3 penetrates through a central hole of the flail hammer 4 which can reciprocate on the pull rod; handles are arranged on the upper side and the lower side of the drop hammer 4, and the working winch 7 and the return winch 1 are connected with the upper handle and the lower handle of the drop hammer 4 respectively.

And one end of the pull rod 3, which is close to the working winch 7, is provided with a positioning device 10, so that the maximum displacement of the pull rod moving to the left side is limited, and the pull rod is prevented from falling off from the bracket II 6.

The power of the working winch 7 is larger than that of the return winch 1.

The limiting switch connected with the working winch 7 is arranged on the limiting device 9, when the throwing hammer impacts the limiting device, the limiting switch on the limiting device is started, the working winch stops working, and the phenomenon that the throwing hammer exceeds the moving range to cause machine damage is avoided.

And a limit switch connected with the return winch 1 is arranged on the support on the side of the pin shaft connecting piece 8, and when the drop hammer returns to the set position, the limit switch on the support is triggered to stop the return winch 1.

The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.

Claims

1. An automatic pin puller is characterized in that: the hoisting device comprises a winch, supports, a pull rod (3), a throwing hammer (4) and a working platform (5), wherein the two supports are respectively fixed at the left end and the right end of the working platform (5), the pull rod (3) is arranged on the two supports in a sliding mode, a pin shaft connecting piece (8) is arranged at one end of the pull rod (3), a limiting device (9) is fixedly arranged at the other end of the pull rod (3), the limiting device (9) is positioned between the two supports, the throwing hammer (4) is arranged between the limiting device (9) and the support on the side where the pin shaft connecting piece (8) is located, and the pull rod (3) penetrates through a center hole of the throwing hammer (4) capable of doing reciprocating motion on the pull rod; the two winches are respectively and fixedly arranged at two ends of the working platform (5), and pull ropes of the two winches are respectively connected with the swinging hammer (4).

2. The automatic pin puller as recited in claim 1, further comprising: the upper ends of the brackets are provided with sleeves, and the pull rods (3) are respectively in sliding fit with the sleeves of the two brackets.

3. The automatic pin puller as recited in claim 1, further comprising: the winch close to the pin shaft connecting piece (8) is a return winch (1), the winch far away from the pin shaft connecting piece (8) is a working winch (7), and one end, close to the working winch (7), of the pull rod (3) is provided with a positioning device (10).

4. The automatic pin puller as recited in claim 3, further comprising: the power of the working winch (7) is greater than that of the return winch (1).

5. The automatic pin puller as recited in claim 1, further comprising: and the limiting device (9) is provided with a limiting switch connected with the working winch (7).

6. The automatic pin puller as recited in claim 1, further comprising: and a limit switch connected with the return winch (1) is arranged on the support at the side of the pin shaft connecting piece (8).

7. The automatic pin puller as recited in claim 1, further comprising: handles are arranged on the upper side and the lower side of the drop hammer (4), and the working winch (7) and the return winch (1) are connected with an upper handle and a lower handle of the drop hammer (4) respectively.

8. The automatic pin puller as recited in claim 1, further comprising: the pin shaft connecting piece (8) is detachably connected with the pull rod (3).