CN215788003U

CN215788003U - Multifunctional portable hydraulic pin puller

Info

Publication number: CN215788003U
Application number: CN202121948488.2U
Authority: CN
Inventors: 郭伟; 杜长征; 余贵; 芦广建
Original assignee: Huainan Mining Group Co Ltd
Current assignee: Huainan Mining Group Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-11
Anticipated expiration: 2031-08-18

Abstract

The utility model provides a multifunctional portable hydraulic pin puller, which comprises a hydraulic jack, a steel pipe, a first lifting ring and a second lifting ring, wherein the first lifting ring is arranged on the hydraulic jack; the output end of the hydraulic jack is provided with a first connector fixed with the pin shaft to be pulled, the other end of the hydraulic jack is coaxially fixed with a steel pipe, one end of the steel pipe, which is far away from the hydraulic jack, is provided with a second connector, and the first lifting ring and the second lifting ring are respectively fixed at the tops of the hydraulic jack and the steel pipe. The multifunctional portable hydraulic pin puller is hung to the position parallel to a pin shaft to be pulled out through the hoisting device, the first connector is screwed into a pin shaft to be detached and is firmly clamped through the pin, the high-pressure pipe is respectively connected with the liquid inlet pipe and the liquid return pipe, liquid is supplied to the liquid inlet pipe, the pin shaft is pulled out under the driving of the steel pipe and the pulling force of the hydraulic jack, liquid supply is suspended, the multifunctional portable hydraulic pin puller is detached, the pin shaft is detached, operation is simple, the working strength is reduced, the working efficiency is improved, and the working safety is enhanced.

Description

Multifunctional portable hydraulic pin puller

Technical Field

The utility model relates to the technical field of pin shaft disassembly, in particular to a multifunctional movable hydraulic pin puller.

Background

The hydraulic support is a large-scale supporting device commonly used in coal mines, and when the hydraulic support is disassembled and maintained, the disassembly of a connecting pin shaft between the hydraulic support and a structural member of the hydraulic support is an indispensable link.

Because the hydraulic support belongs to large-scale equipment, a plurality of scattered parts need to be disassembled for transportation and installation, each part is hinged by a pin shaft, the connecting pin shaft is large and long, the deformation and the corrosion are serious, and the pin shaft is very troublesome and difficult to pull out during disassembly. The prior art usually adopts traditional draw hammer mode, and it needs 5 people to draw together to tie up the draw hammer, and is very hard, and work efficiency is very low, and 1 day can only demolish the round pin axle of 1 support at most, and the pin puller that sells on the market is expensive (about 10 ten thousand yuan), and is bulky, also is not fit for on-the-spot actual work site and uses.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems of difficulty in disassembling the pin pulling hydraulic support and improvement of working efficiency.

The utility model solves the technical problems through the following technical means:

the multifunctional portable hydraulic pin puller comprises a hydraulic jack (1), a steel pipe (2), a first lifting ring (4) and a second lifting ring (5); the output of hydraulic jack (1) is provided with and treats the fixed first connector (6) of pin pulling shaft, and the other end coaxial fixation has steel pipe (2) are kept away from the one end of hydraulic jack (1) is provided with second connector (7), first rings (4), second rings (5) are fixed respectively hydraulic jack (1) with the top of steel pipe (2).

As a further optimized technical scheme, the first connector (6) comprises a first connecting hole (61), and the first connecting hole (61) is fixedly connected with pin shafts with different sizes through pins.

As a further optimized technical scheme, the second connector (7) comprises a second connecting hole (71), and the second connecting hole (71) is connected with a weight piece.

As a further optimized technical scheme, the hydraulic jack (1) comprises a liquid inlet (8) and a liquid return port (9), the liquid inlet (8) is connected with a liquid inlet pipe (81), and the liquid return port (9) is connected with a liquid return pipe (91).

As a further optimized technical scheme, the liquid inlet pipe (81) is fixed on the outer surface of the steel pipe (2), and the liquid return pipe (91) is arranged in the inner cavity of the steel pipe (2).

As a further optimized technical scheme, a liquid inlet hole (92) connected with the liquid return pipe (91) is formed in the outer surface of the steel pipe (2).

As a further optimized technical scheme, the liquid inlet pipe (81) and the liquid return pipe (91) penetrate out of the inner cavity of the steel pipe (2).

As a further optimized technical scheme, a liquid inlet hole (82) and a liquid return hole (92) which are respectively connected with the liquid inlet pipe (81) and the liquid return pipe (91) are formed in the outer surface of the steel pipe (2).

As a further optimized technical scheme, the hydraulic lifting jack further comprises a steel plate (3), one side of the steel plate (3) is fixed with the end part of the cylinder base of the hydraulic lifting jack (1), the other end of the steel plate is fixed with the end part of the steel pipe (2), and through holes matched with the liquid inlet (8) and the liquid return port (9) of the hydraulic lifting jack (1) are formed in the steel plate (3).

As a further optimized technical scheme, the device also comprises a movable support (10), wherein the movable support (10) comprises an expansion rod (101), a top plate (102), a bottom plate (103), a roller (104), a lifting bolt (105) and a lifting ring (106);

the upper end and the lower end of the telescopic rod (101) are fixedly connected with the top plate (102) and the bottom plate (103) respectively, the upper end of the top plate (102) is fixedly connected with the lifting bolt (105), the lifting ring (106) is arranged at the lower end of the top plate (102), the lower end of the bottom plate (103) is fixedly connected with the roller (104), and the lifting ring (106) is connected with the first lifting ring (4) and the second lifting ring (5) respectively.

When the pin shaft is disassembled, a first connecting hole on a first connector is screwed in the pin shaft to be disassembled and is firmly clamped through a pin, a multifunctional portable hydraulic pin extractor is hung to a position parallel to the pin shaft to be disassembled through a hoisting device and a first hoisting ring and a second hoisting ring, a second connecting hole on a second connector is connected with a counterweight, a second connecting hole on the second connector is connected with the counterweight, one end of a high-pressure pipe is respectively connected with a liquid inlet and a liquid return hole, liquid is slowly supplied to the liquid inlet, an output shaft of a hydraulic jack extends out and is tightly connected with the pin shaft, a liquid return pipe starts to return liquid, an output shaft of the hydraulic jack retracts, the pin shaft is pulled out under the driving force of a steel pipe and the hydraulic jack, liquid supply is suspended, the multifunctional portable hydraulic pin extractor is disassembled, the pin shaft disassembly is completed, the operation is simple, the working strength is reduced, and the working efficiency is improved, the safety of work is enhanced.

Preferably, the first connector and the second connector are made of alloy steel.

Preferably, the steel pipe is a steel pipe with the size of phi 270 x 600 mm.

Preferably, the liquid inlet pipe and the liquid return pipe are high-pressure pipes.

Preferably, the steel plate is square with the side length slightly larger than the diameter of the cavity of the hydraulic jack.

Compared with the prior art, the utility model has the beneficial effects that:

1. be provided with first connecting hole on the first connector, first connecting hole passes through pin fixed connection with the round pin axle of other different equipment, different specification models, is applicable to different workplaces, improves work efficiency.

2. Be provided with the second connecting hole on the second connector, the second connecting hole is connected with the counterweight, provides a gravity for the steel pipe, provides a reaction force for hydraulic jack simultaneously, reduces working strength, has strengthened operation personnel's work safety.

3. The novel hydraulic jack is formed by reforming a waste jack, is extremely low in cost, simple to operate, convenient to disassemble and assemble, low in requirement on the operating skill level of operating personnel, small in size, convenient to move, not only suitable for ground workshops, but also capable of being disassembled on site underground, and the arrangement of the steel pipes increases the working operation area.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a multifunctional portable hydraulic pin remover;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural diagram of a second embodiment of the multifunctional portable hydraulic pin remover;

FIG. 4 is a cross-sectional view of FIG. 3;

fig. 5 is a schematic structural diagram of a third embodiment of the multifunctional portable hydraulic pin remover.

The lifting device comprises a hydraulic jack 1, a steel pipe 2, a steel plate 3, a first lifting ring 4, a second lifting ring 5, a connector 6, a connecting hole 61, a mounting hole 7, a liquid inlet 8, a liquid inlet pipe 81, a liquid inlet hole 82, a liquid return hole 9, a liquid return pipe 91, a liquid return hole 92, a movable support 10, a telescopic rod 101, a bottom plate 102, a roller 103, a top plate 104, a lifting bolt 105 and a lifting ring 106.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with specific implementations, and the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1 and 2; the utility model relates to a multifunctional portable hydraulic pin puller which comprises a hydraulic jack 1, a steel pipe 2, a steel plate 3, a first lifting ring 4, a second lifting ring 5, a first connector 6 and a second connector 7.

And the output end of the hydraulic jack 1 is provided with a first connector 6 fixed with a pin shaft.

One end of the steel pipe 2 is fixedly connected with the steel plate 3, and the other end of the steel pipe is provided with a second connector 7 connected with the counterweight.

One side of the steel plate 3 is fixedly connected with the end part of the cylinder seat of the hydraulic jack 1, and the other side of the steel plate is fixedly connected with the end part of the steel pipe 2.

The first lifting ring 4 and the second lifting ring 5 are respectively fixed on the tops of the hydraulic jack 1 and the steel pipe 2.

The end of the first connector 6 is provided with a first connection hole 61, and the first connection hole 61 is fixedly connected with the pin shafts with different sizes through pins.

The second connector 7 is provided with a mounting hole 71, and the mounting hole 71 is connected with a counterweight.

Inlet 8 and liquid return port 9 set up on the steel sheet 3 of 1 tip of hydraulic jack, inlet 8 and liquid return port 9 and the 1 inside intercommunication of hydraulic jack, inlet 8 is connected with feed liquor pipe 81, liquid return port 9 and liquid return pipe 91 are connected, feed liquor pipe 81 is fixed at the surface of steel pipe 2, liquid return pipe 91 sets up the inner chamber at steel pipe 2, the surface of steel pipe 2 be provided with the liquid return hole 92 of liquid return pipe 91 intercommunication.

When the multifunctional portable hydraulic pin puller is used, the first connecting hole 61 on the first connector 6 is screwed into a pin shaft to be detached and is firmly clamped through a pin, the multifunctional portable hydraulic pin puller is hung to a position parallel to the pin shaft to be detached by the hoisting device through the first hoisting ring 4 and the second hoisting ring 5, the second connecting hole 71 on the second connector 7 is connected with the counterweight, one end of the high-pressure pipe is respectively connected with the liquid inlet pipe 81 and the liquid return hole 92, liquid is slowly supplied to the liquid inlet pipe 81, the output shaft of the hydraulic jack 1 extends out and is tightly connected with the pin shaft, the liquid return pipe 91 starts to return liquid, the output shaft of the hydraulic jack retracts, the pin shaft is pulled out under the driving force of the steel pipe 2 and the hydraulic jack 1, liquid supply is suspended, the multifunctional portable hydraulic pin puller is detached, and the pin shaft detachment is completed.

Example two

As shown in fig. 3 and 4; the utility model relates to a multifunctional portable hydraulic pin puller which comprises a hydraulic jack 1, a steel pipe 2, a steel plate 3, a first lifting ring 4, a second lifting ring 5, a first connector 6 and a second connector 7.

Inlet 8 and liquid return port 9 set up on the steel sheet 3 of 1 tip of hydraulic jack, inlet 8 and liquid return port 9 and the 1 inside intercommunication of hydraulic jack, inlet 8 is connected with feed liquor pipe 81, liquid return port 9 and return liquid pipe 91 are connected, feed liquor pipe 81, return liquid pipe 91 all set up the inner chamber at steel pipe 2, the surface of steel pipe 2 is provided with respectively feed liquor pipe 81, return liquid inlet hole 82, return liquid hole 92 of pipe 91 intercommunication.

When the multifunctional portable hydraulic pin puller is used, the first connecting hole 61 on the first connector 6 is screwed into a pin shaft to be detached and is firmly clamped through a pin, the multifunctional portable hydraulic pin puller is hung to a position parallel to the pin shaft to be detached by the hoisting device through the first hoisting ring 4 and the second hoisting ring 5, the second connecting hole 71 on the second connector 7 is connected with the counterweight, one end of the high-pressure pipe is respectively connected with the liquid inlet 82 and the liquid return hole 92, liquid is slowly supplied to the liquid inlet 82, the output shaft of the hydraulic jack 1 extends out and is tightly connected with the pin shaft, the liquid return pipe 91 starts to return liquid, the output shaft of the hydraulic jack retracts, the pin shaft is pulled out under the driving force of the steel pipe 2 and the hydraulic jack 1, liquid supply is suspended, the multifunctional portable hydraulic pin puller is detached, and the pin shaft detachment is completed.

EXAMPLE III

As shown in fig. 5; the utility model relates to a multifunctional portable hydraulic pin puller which comprises a hydraulic jack 1, a steel pipe 2, a steel plate 3, a first lifting ring 4, a second lifting ring 5, a first connector 6, a second connector 7 and a movable support 10.

The movable support 10 comprises an expansion link 101, a top plate 102, a bottom plate 103, a roller 104, a lifting bolt 105 and a lifting ring 106; the upper end and the lower end of the telescopic rod 101 are respectively fixedly connected with the top plate 102 and the bottom plate 103, the upper end of the top plate 102 is fixedly connected with the lifting bolt 105, the lifting ring 106 is arranged at the lower end of the top plate 102, the lower end of the bottom plate 103 is fixedly connected with the roller 104, and the lifting ring 106 is respectively connected with the first lifting ring 4 and the second lifting ring 5.

When the multifunctional portable hydraulic pin puller is used, the first lifting ring 4 and the second lifting ring 5 are respectively connected with the lifting ring 106, the movable support 10 is pushed to a pin shaft to be pulled out, the first connecting hole 61 on the first connector 6 is screwed into a pin shaft to be detached and is firmly clamped through a pin, the telescopic rod 101 is adjusted, and the multifunctional portable hydraulic pin puller is adjusted to be parallel to the pin shaft to be pulled out; or the lifting device can be connected with the lifting bolt 105, the movable support 10 is lifted, the telescopic rod 101 is adjusted to enable the hydraulic pin puller with the function of convenient movement to be parallel to the pin shaft to be pulled, the second connecting hole 71 on the second connector 7 is connected with the counterweight, one end of the high-pressure pipe is respectively connected with the liquid inlet pipe 81 and the liquid return hole 92, liquid is slowly supplied to the liquid inlet pipe 81, the output shaft of the hydraulic jack 1 extends out and is tightly connected with the pin shaft, the liquid return pipe 91 starts to return liquid, the output shaft of the hydraulic jack 1 retracts, the pin shaft is pulled out under the driving of the steel pipe 2 and the hydraulic jack 1, liquid supply is suspended, the multifunctional hydraulic pin puller with the function of convenient movement is disassembled, and the pin shaft disassembly is completed.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The multifunctional portable hydraulic pin puller is characterized by comprising a hydraulic jack (1), a steel pipe (2), a first lifting ring (4) and a second lifting ring (5); the output of hydraulic jack (1) is provided with and treats the fixed first connector (6) of pin pulling shaft, and the other end coaxial fixation has steel pipe (2) are kept away from the one end of hydraulic jack (1) is provided with second connector (7), first rings (4), second rings (5) are fixed respectively hydraulic jack (1) with the top of steel pipe (2).

2. A multi-functional portable hydraulic pin puller according to claim 1, wherein said first connector (6) comprises a first connection hole (61), said first connection hole (61) being fixedly connected with pins of different sizes.

3. A multi-functional portable hydraulic pin puller according to claim 1, wherein said second connector (7) comprises a second connection hole (71), said second connection hole (71) being connected with a weight member.

4. The multifunctional portable hydraulic pin puller according to claim 1, wherein the hydraulic jack (1) comprises a liquid inlet (8) and a liquid return port (9), the liquid inlet (8) is connected with a liquid inlet pipe (81), and the liquid return port (9) is connected with a liquid return pipe (91).

5. The multifunctional portable hydraulic pin puller according to claim 4, wherein the liquid inlet pipe (81) is fixed on the outer surface of the steel pipe (2), and the liquid return pipe (91) is arranged in the inner cavity of the steel pipe (2).

6. The multifunctional portable hydraulic pin puller according to claim 5, wherein the outer surface of the steel pipe (2) is provided with a liquid return hole (92) connected with the liquid return pipe (91).

7. The multifunctional portable hydraulic pin puller according to claim 6, wherein the liquid inlet pipe (81) and the liquid return pipe (91) penetrate out of the inner cavity of the steel pipe (2).

8. The multifunctional portable hydraulic pin puller according to claim 7, wherein the outer surface of the steel pipe (2) is provided with a liquid inlet hole (82) and a liquid return hole (92) which are respectively connected with the liquid inlet pipe (81) and the liquid return pipe (91).

9. The multifunctional movable hydraulic pin puller according to claim 8, further comprising a steel plate (3), wherein one side of the steel plate (3) is fixed to the end of the cylinder base of the hydraulic jack (1), the other end of the steel plate is fixed to the end of the steel pipe (2), and the steel plate (3) is provided with a through hole which is matched with the liquid inlet (8) and the liquid return port (9) of the hydraulic jack (1).

10. A multifunctional portable hydraulic pin puller according to any one of claims 1 to 9, further comprising a movable support (10), wherein the movable support (10) comprises a telescopic rod (101), a top plate (102), a bottom plate (103), a roller (104), a lifting bolt (105) and a lifting ring (106);