CN216265769U - Device for disassembling abrasion pin shaft of coal mining machine - Google Patents

Abstract

The utility model discloses a device for disassembling a worn pin shaft of a coal mining machine, which comprises a pin shaft disassembling tool, wherein the pin shaft disassembling tool is of a three-section structure and comprises a clamping piece positioned in the middle and two groups of rotating plates arranged at the outer ends of the clamping piece, a plurality of groups of bayonets are uniformly arranged on the lower edge of the clamping piece, two ends of the clamping piece extend to form a contact plate, a plurality of groups of mounting grooves are uniformly formed in the inner side of the contact plate, rotating rollers are movably mounted in the plurality of groups of mounting grooves and are matched with the rotating plates for use, the inner ends of the rotating plates are rotatably connected with the outer ends of the contact plate through bolts, and each rotating plate comprises a plate body I, a plate body II, a vertical plate and a handle. The disassembling tool fully utilizes the lug structure at the end part of the pin shaft, when the pin shaft needs to be disassembled, a worker can clamp the clamping piece in the middle of the disassembling tool at the end part of the pin shaft, and then the pin shaft is gradually ejected out by rotating and pressing two groups of handles at the outer side.

Description

Device for disassembling abrasion pin shaft of coal mining machine

Technical Field

The utility model relates to the technical field of pin shaft dismounting tools, in particular to a device for dismounting a worn pin shaft of a coal mining machine.

Background

The coal cutter is one of the main devices of the fully mechanized mining complete equipment, and the coal cutter is developed and evolved from a coal cutter. The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, the working environment is severe, the whole coal mining work can be interrupted if a fault occurs, huge economic loss is caused, and the coal mining machine is one of important devices for realizing mechanization and modernization of coal mine production. The coal mining machinery has the advantages that the labor intensity can be reduced, the safety is improved, the purposes of high yield, high efficiency and low consumption are achieved, and the coal is broken down from the coal body (coal breaking) and is loaded into a working face conveyor (coal loading) by a working mechanism on the longwall coal mining working face. The coal mining machine travels (pulls) according to the traction speed of setting, makes broken coal and coal charging process can go on constantly in succession, and the round pin axle can be installed on the coal mining machine for the convenience of the connection and the fixed of each part, and the round pin axle produces wearing and tearing easily in long-time use, and the untimely change appears the security problem easily, needs to dismantle and change the processing through the instrument to the round pin axle.

However, the existing method for disassembling the pin shaft of the coal mining machine has the following problems: mainly dismantle through rammer or pliers, the mode that adopts the rammer to strike produces great noise and easily damages the coal-winning machine organism, adopts the pliers to appear the condition that drops easily at the in-process of operation, and inconvenient dismantlement. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for disassembling a worn pin shaft of a coal mining machine, which solves the technical problems that disassembly is inconvenient because a rammer or a clamp is mainly adopted, a rammer knocking mode generates large noise and easily damages a coal mining machine body, and the clamp is easy to fall off in the operation process, so that disassembly is inconvenient.

In order to achieve the purpose, the utility model provides the following technical scheme: a device for disassembling a worn pin shaft of a coal mining machine comprises a pin shaft disassembling tool, wherein the pin shaft disassembling tool is of a three-section structure and comprises a clamping piece positioned in the middle and two groups of rotating plates arranged at the outer end of the clamping piece, a plurality of groups of bayonets are uniformly arranged on the lower edge of the clamping sheet, contact plates extend from two ends of the clamping sheet, a plurality of groups of mounting grooves are uniformly arranged on the inner side of each contact plate, rotating rollers are movably mounted in the plurality of groups of mounting grooves and are matched with the rotating plates for use, the inner end of the rotating plate is rotatably connected with the outer end of the contact plate through a bolt, the rotating plate consists of a plate body I, a plate body II, a vertical plate and a handle, the first plate body and the second plate body are arranged in parallel, the middle parts of the first plate body and the second plate body are provided with adjusting notches, the outer ends of the first plate body and the second plate body are connected with the vertical plate in a sliding way, the handle is installed at the outer end of the vertical plate, and a knob and a plurality of groups of reinforcing plates are further inserted between the first plate body and the second plate body in a threaded manner.

In a preferred embodiment of the present invention, a corner is formed between the contact plate and the gripping sheet, and the contact plate and the gripping sheet have a substantially rectangular shape as a whole.

In a preferred embodiment of the present invention, the inner side of the contact plate is in a slope structure, and the thickness of the upper end is smaller than that of the lower end.

As a preferred embodiment of the present invention, the knob includes a screw threaded through the first plate and a rotating ball fixed at the end of the screw, the rotating ball is rotatably disposed in the second plate, and two sets of pressing rods are fixed at the outer end of the screw.

As a preferred embodiment of the present invention, the reinforcing plate is formed by two sets of metal plates in a cross structure, the joint of the two sets of metal plates is rotatably connected, and the outer ends of the two sets of metal plates are slidably connected with the first plate body and the second plate body respectively.

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

1. this scheme has designed a instrument that is used for carrying out dismantlement to the round pin axle specially, and this extracting tool make full use of is to the lug structure of round pin axle tip, and when needs are dismantled the round pin axle, the staff can press from both sides the clamp at extracting tool middle part and get the piece buckle in the tip of round pin axle, then rotate through two sets of handles in the outside and push down and make the round pin axle ejecting gradually, and make full use of lever principle is convenient for dismantle the round pin axle, easy operation convenient to use.

2. The bayonet socket that this scheme design has different specifications on pressing from both sides the piece can be applicable to the round pin axle of different specifications to the rotor plate design of outer end is bilayer structure, can adjust the thickness of rotor plate as required, is convenient for dismantle the round pin axle better, has improved extracting tool's flexibility.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a view of the construction of the clip of the present invention;

FIG. 3 is a diagram of a contact plate structure according to the present invention;

fig. 4 is a view showing the construction of the pivotal plate according to the present invention.

In the figure, 1, a clamping piece; 2. a rotating plate; 3. a bayonet; 4. a contact plate; 5. mounting grooves; 6. a rotating roller; 7. a first plate body; 8. a second plate body; 9. a vertical plate; 10. a handle; 11. adjusting the notch; 12. a knob; 13. a reinforcing plate; 14. a screw; 15. rotating the ball; 16. applying a pressure rod; 17. a metal plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Referring to fig. 1-4, the present invention provides a technical solution: a device for disassembling a worn pin shaft of a coal mining machine comprises a pin shaft disassembling tool, wherein the pin shaft disassembling tool is of a three-section structure and comprises a clamping piece 1 positioned in the middle and two groups of rotating plates 2 arranged at the outer ends of the clamping piece 1, a plurality of groups of bayonets 3 are uniformly arranged on the lower edge of the clamping piece 1, two ends of each clamping piece extend to form a contact plate 4, a plurality of groups of mounting grooves 5 are uniformly formed in the inner side of each contact plate 4, rotating rollers 6 are movably mounted in the groups of mounting grooves 5, the groups of rotating rollers 6 are matched with the rotating plates 2 for use, the inner ends of the rotating plates 2 are rotatably connected with the outer ends of the contact plates 4 through bolts, each rotating plate 2 comprises a plate body I7, a plate body II 8, a vertical plate 9 and a handle 10, the plate body I7 and the plate body II 8 are arranged in parallel, an adjusting notch 11 is formed in the middle of the plate body I7 and the plate II 8, the outer ends of the vertical plate 9 are slidably connected, the handle 10 is mounted at the outer end of the vertical plate 9, a knob 12 and a plurality of groups of reinforcing plates 13 are also inserted between the first plate body 7 and the second plate body 8 in a threaded manner.

Further improved, as shown in fig. 1: a corner is formed between the contact plate 4 and the clamping sheet 1, and the whole clamping sheet is in a structure like a Chinese character 'ji'.

Further improved, as shown in fig. 2: the inboard of contact plate 4 is domatic structure and upper end thickness is less than lower extreme thickness, and such design is convenient for rotor plate 2 when rotating down along ejecting the round pin axle to the outside.

Further improved, as shown in fig. 1: the knob 12 comprises a screw 14 threaded on the first plate body 7 in a penetrating manner and a rotating ball 15 fixed at the tail end of the screw 14, the rotating ball 15 is rotatably arranged in the second plate body 8, two groups of pressure applying rods 16 are fixed at the outer end of the screw 14, and the purpose of adjusting the distance between the first plate body 7 and the second plate body 8 can be achieved by rotating the screw 14.

Specifically, reinforcing plate 13 is the fork structure by two sets of metal sheets 17, and the junction of two sets of metal sheets 17 rotates to be connected and the outer end respectively with plate body one 7, two 8 sliding connection of plate body, and intensity between such design can effectual improvement plate body one 7 and the plate body two 8.

When in use: when the pin shaft needs to be disassembled, a worker corresponds the bayonet 3 of the clamping sheet 1 to the end part of the pin shaft and is positioned on the inner side of the convex block at the end part of the pin shaft, the contact plate 4 is contacted with the machine body of the coal mining machine, then the worker rotates the two groups of rotating plates 2 downwards, the rotating plates 2 are abutted against the contact plate 4 in the rotating process, the contact plate 4 is pushed outwards, so that the clamping sheet 1 pushes the pin shaft outwards, in addition, the thickness of the rotating plates 2 can be adjusted through the knob 12 according to the length of a pin bolt before use, and the purpose of replacing and disassembling is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a device for dismantling coal-winning machine wearing and tearing round pin axle, includes round pin axle extracting tool, its characterized in that: the pin shaft disassembling tool is of a three-section structure and comprises a clamping piece (1) positioned in the middle and two groups of rotating plates (2) arranged at the outer ends of the clamping piece (1), wherein a plurality of groups of bayonets (3) are uniformly arranged on the lower edge of the clamping piece (1), two ends of the clamping piece extend to form the contact plates (4), a plurality of groups of mounting grooves (5) are uniformly arranged on the inner sides of the contact plates (4), rotating rollers (6) are movably mounted in the mounting grooves (5), the rotating rollers (6) are matched with the rotating plates (2) for use, the inner ends of the rotating plates (2) are rotatably connected with the outer ends of the contact plates (4) through bolts, each rotating plate (2) is composed of a plate body I (7), a plate body II (8), a vertical plate (9) and a handle (10), the plate body I (7) and the plate body II (8) are arranged in parallel, and an adjusting notch (11) is formed in the middle, the outer ends of the first plate body (7) and the second plate body (8) are connected with the vertical plate (9) in a sliding mode, the handle (10) is installed at the outer end of the vertical plate (9), and a knob (12) and a plurality of groups of reinforcing plates (13) are further inserted between the first plate body (7) and the second plate body (8) in a threaded mode.

2. The device for disassembling the wear pin of shearer loaders according to claim 1, characterized in that: a corner is formed between the contact plate (4) and the clamping sheet (1), and the whole clamping sheet is of a structure shaped like a Chinese character 'ji'.

3. The device for disassembling the wear pin of shearer loaders according to claim 2, characterized in that: the inner side of the contact plate (4) is of a slope surface structure, and the thickness of the upper end of the contact plate is smaller than that of the lower end of the contact plate.

4. The device for disassembling the wear pin of shearer loaders according to claim 1, characterized in that: the knob (12) comprises a screw rod (14) which is inserted on the first plate body (7) in a penetrating mode through threads and a rotating ball (15) fixed at the tail end of the screw rod (14), the rotating ball (15) is rotatably arranged in the second plate body (8), and two groups of pressing rods (16) are fixed at the outer end of the screw rod (14).

5. The device for disassembling the wear pin of shearer loaders according to claim 4, characterized in that: the reinforcing plate (13) is of a cross structure formed by two groups of metal plates (17), the joint of the two groups of metal plates (17) is connected in a rotating mode, and the outer ends of the two groups of metal plates are connected with the first plate body (7) and the second plate body (8) in a sliding mode respectively.

Images