CN218534404U

CN218534404U - Pin shaft dismounting device

Info

Publication number: CN218534404U
Application number: CN202223197743.1U
Authority: CN
Inventors: 冯聪; 陈明信; 张辉; 沈品品; 刘祥兵; 郑利森; 韩圣宁; 郭延强
Original assignee: Yankuang Energy Group Co Ltd
Current assignee: Yankuang Energy Group Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-02-28
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to a round pin axle dismounting device, including hydraulic jack, protective cylinder and connecting seat, hydraulic jack is located protective cylinder's the outside, protective cylinder's inside is the cavity, the connecting seat can be dismantled with hydraulic jack's piston and be connected, and hydraulic jack's cylinder body is connected with protective cylinder's one end, and hydraulic jack's piston runs through and extends to protective cylinder's the other end, is located protective cylinder and has the breach on keeping away from the section of thick bamboo wall of hydraulic jack's tip, the utility model discloses reduce the assembly degree of difficulty of hydraulic jack and protective cylinder, simultaneously, the breach provides sufficient installation space for hydraulic jack's piston, connecting seat and the connection operation of treating the round pin axle of dismantling, has improved dismantlement efficiency, reduces operation personnel's intensity of labour, has higher economic benefits.

Description

Pin shaft dismounting device

Technical Field

The utility model belongs to the technical field of coal mining equipment, specifically speaking relates to a round pin axle dismounting device.

Background

Coal is an important energy material, and in the coal mining process, the mounting and dismounting construction of coal face equipment is usually involved, while the dismounting link of a coal mining machine is the most critical and tedious work in the working face equipment dismounting process, and meanwhile, a pin shaft of the coal mining machine is often difficult to dismount due to rusting caused by long-time use. At present, the method for disassembling the pin shaft of the coal mining machine adopts manual hammering, which wastes time, labor and is unsafe, thus influencing the construction efficiency of installation and removal of a coal mining working face and even causing safety accidents. Secondly, adopt the round pin axle dismounting device, like CN201420131158.8 support big round pin axle dismounting device, the sleeve internal fixation has the jack, and the jack is extracted the round pin axle, and labour saving and time saving, however, because the jack is located the sleeve inside, has increased the assembly degree of difficulty, simultaneously, when the working face passes through connecting seat and round pin hub connection with the front end of piston rod, the connection operation of connecting seat and round pin axle must receive space restriction to influence dismantlement efficiency.

SUMMERY OF THE UTILITY MODEL

To various deficiencies in the prior art, in order to solve the above problems, a pin shaft dismounting device is provided to solve the problems of time and labor waste, insecurity, low dismounting efficiency caused by unsmooth connection and the like in the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pin shaft dismounting device comprises a hydraulic jack, a protective cylinder barrel and a connecting seat, wherein the hydraulic jack is positioned on the outer side of the protective cylinder barrel, a cavity is formed inside the protective cylinder barrel, and the connecting seat is detachably connected with a piston of the hydraulic jack;

the cylinder body of hydraulic jack is connected with the one end of protection cylinder, and hydraulic jack's piston runs through and extends to the other end of protection cylinder, is located the section of thick bamboo wall that has the breach on the tip that hydraulic jack was kept away from to the protection cylinder.

This technical scheme further sets up to, and the periphery of two tip of protection cylinder is equipped with the solid fixed ring of first solid fixed ring and second respectively, and the solid fixed ring's of second external diameter is greater than the solid fixed ring's of first external diameter.

This technical scheme further sets up to, hydraulic jack's cylinder body pass through the fixed block with first solid fixed ring is connected.

This technical scheme further sets up to, the fixed block has a plurality ofly along hydraulic jack's cylinder body circumference equipartition.

This technical scheme further sets up to, the breach inclines to the axis of protection cylinder barrel from the section of thick bamboo wall of protection cylinder barrel, just the breach with the cavity intercommunication.

The technical scheme is further set that the included angle between the notch and the cylinder wall of the protective cylinder barrel is 20-35 degrees.

The technical scheme is further set that the projection of the notch on the horizontal plane is in a fan shape.

This technical scheme further sets up to, the longitudinal section of connecting seat is C type structure, set up the second through-hole that is located its first through-hole and is located its top that is located its side on the connecting seat, and first through-hole, second through-hole all communicate with the inner chamber of C type structure.

The technical scheme is further arranged that a third through hole is formed in the end portion of the piston of the hydraulic jack, and the third through hole, the pin shaft to be detached and the second through hole are connected through bolts.

The utility model has the advantages that:

1. the hydraulic jack is located the outside of protection cylinder, has reduced the assembly degree of difficulty between them.

2. The section of thick bamboo wall of protection cylinder has the breach, and the cavity intercommunication of breach and protection cylinder provides sufficient installation space for hydraulic jack's piston, connecting seat and the connection operation of the round pin axle of waiting to dismantle, and then improves and dismantles efficiency.

3. The structure is simple, the rapid and efficient disassembly operation of the pin shaft of the coal mining machine on the coal face is realized, unsafe factors of field operation are reduced, the labor intensity of operating personnel is reduced, accidental injury of the operating personnel is avoided, and the economic benefit is higher.

Drawings

Fig. 1 is a front view of the pin dismounting device of the present invention;

fig. 2 is a top view of the pin shaft dismounting device of the present invention;

fig. 3 is an assembly view of the pin dismounting device of the present invention;

in the drawings: 1-hydraulic jack, 2-protective cylinder barrel, 3-first fixed ring, 4-second fixed ring, 5-connecting seat, 6-fixed block, 7-second through hole, 8-third through hole, 9-notch and 10-piston of hydraulic jack.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.

The present invention will be further described with reference to the accompanying drawings and preferred embodiments.

The first embodiment is as follows:

as shown in fig. 1-3, a round pin axle dismounting device includes hydraulic jack 1, protection cylinder 2 and connecting seat 5, hydraulic jack 1 is located the outside of protection cylinder 2, compares in prior art, and hydraulic jack 1 is located the outside of protection cylinder 2, has reduced assembly degree of difficulty between them.

Specifically, the protection cylinder barrel 2 is of a cylindrical structure, a cavity is formed in the protection cylinder barrel, and in addition, lug seats convenient to hoist are arranged on the barrel wall of the protection cylinder barrel 2. The cylinder body of the hydraulic jack 1 is connected with one end of the protection cylinder barrel 2, and the piston 10 of the hydraulic jack penetrates through and extends to the other end of the protection cylinder barrel 2.

Specifically, the connecting seat 5 and the hydraulic jack 1 are respectively located at different ends of the protective cylinder barrel 2, and the connecting seat 5 is detachably connected with a piston 10 of the hydraulic jack, so that the connecting seat 5 can be conveniently replaced according to a pin shaft to be detached.

Specifically, the peripheries of the two end portions of the protection cylinder barrel 2 are respectively provided with a first fixing ring 3 and a second fixing ring 4, and the outer diameter of the second fixing ring 4 is larger than that of the first fixing ring 3, so that the contact area is increased.

Specifically, the cylinder body of the hydraulic jack 1 is connected with the first fixing ring 3 through a fixing block 6, and the longitudinal section of the fixing block 6 is triangular. Preferably, a plurality of the fixing blocks 6 are uniformly distributed along the circumference of the cylinder body of the hydraulic jack 1. In this embodiment, the fixed blocks 6 are uniformly distributed along the circumferential direction of the cylinder body of the hydraulic jack 1 in 4 numbers.

Specifically, a notch 9 is formed in the cylinder wall of the end portion, far away from the hydraulic jack 1, of the protection cylinder barrel 2. The breach 9 is from the section of thick bamboo wall slope of protection cylinder 2 to the axis of protection cylinder 2, just breach 9 and the cavity intercommunication of protection cylinder 2.

Specifically, the included angle between the notch 9 and the cylinder wall of the protection cylinder barrel 2 is 20-35 degrees, and preferably, the included angle between the notch 9 and the cylinder wall of the protection cylinder barrel 2 is 26 degrees. The projection of the notch 9 on the horizontal plane is in a fan shape.

Because the section of thick bamboo wall of protection cylinder 2 has breach 9, and breach 9 and the cavity intercommunication of protection cylinder 2 provide sufficient installation space for hydraulic jack's piston 10, connecting seat 5 and the connection operation of the round pin axle of waiting to dismantle, and then improve and dismantle efficiency.

Specifically, the longitudinal section of the connecting seat 5 is of a C-shaped structure, a first through hole located on the side face of the connecting seat 5 and a second through hole 7 located on the top of the connecting seat are formed in the connecting seat 5, and the first through hole and the second through hole 7 are communicated with an inner cavity of the C-shaped structure.

Specifically, a third through hole 8 is formed in the end portion of a piston 10 of the hydraulic jack, and the third through hole 10, the pin shaft to be detached and the second through hole 7 are connected through bolts.

During disassembly, the pin shaft disassembling device is hoisted to a proper position by a crane, the piston 10 of the hydraulic jack is extended, the piston 10 of the hydraulic jack, the connecting seat 5 and the pin shaft to be disassembled are connected, the second fixing ring 4 is abutted to the plane near the pin shaft to be disassembled, the piston 10 of the pin disassembling hydraulic jack retracts to generate tension force on the pin shaft to be disassembled until the pin shaft to be disassembled is pulled out.

The structure is simple, the rapid and efficient disassembly operation of the pin shaft of the coal mining machine on the coal face is realized, unsafe factors of field operation are reduced, the labor intensity of operating personnel is reduced, accidental injury of the operating personnel is avoided, and the economic benefit is higher.

The above detailed description is only for the preferred embodiment of the present invention, and the scope of the present invention should not be limited by the above detailed description, and all the equivalent variations and modifications made according to the scope of the present invention should be included in the scope of the present invention.

Claims

1. The pin shaft dismounting device is characterized by comprising a hydraulic jack, a protective cylinder barrel and a connecting seat, wherein the hydraulic jack is positioned on the outer side of the protective cylinder barrel, a cavity is formed inside the protective cylinder barrel, and the connecting seat is detachably connected with a piston of the hydraulic jack;

2. The pin dismounting device according to claim 1, wherein the peripheries of the two end portions of the protection cylinder are respectively provided with a first fixing ring and a second fixing ring, and the outer diameter of the second fixing ring is larger than that of the first fixing ring.

3. The device for disassembling a pin shaft according to claim 2, wherein a cylinder of the hydraulic jack is connected to the first fixing ring through a fixing block.

4. The device for disassembling the pin shaft according to claim 3, wherein the fixed block is uniformly distributed along the circumference of the cylinder body of the hydraulic jack.

5. The device for detaching the pin shaft according to any one of claims 1 to 4, wherein the notch is inclined from the cylinder wall of the protective cylinder toward the central axis of the protective cylinder, and the notch is communicated with the cavity.

6. The device for detaching the pin shaft according to claim 5, wherein the included angle between the notch and the cylinder wall of the protective cylinder barrel is 20-35 °.

7. The device for detaching a pin shaft according to claim 5, wherein a projection of the notch on a horizontal plane is fan-shaped.

8. The device for disassembling the hinge pin according to any one of claims 1 to 4, wherein the longitudinal section of the connecting base has a C-shaped structure, the connecting base is provided with a first through hole at a side thereof and a second through hole at a top thereof, and the first through hole and the second through hole are both communicated with an inner cavity of the C-shaped structure.

9. The device for disassembling a pin shaft according to claim 8, wherein a third through hole is formed at the end of the piston of the hydraulic jack, and the third through hole, the pin shaft to be disassembled, and the second through hole are connected by bolts.