CN211038636U

CN211038636U - Coal mining heading machine cutterhead protector

Info

Publication number: CN211038636U
Application number: CN201922298050.3U
Authority: CN
Inventors: 莫连红; 徐光晓; 杨武; 陈洲; 陈薛; 曾智超; 李公朝; 王文勇; 张涛; 潘涛
Original assignee: Guizhou Dafang Coal Industry Co ltd
Current assignee: Guizhou Dafang Coal Industry Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-07-17
Anticipated expiration: 2029-12-19

Abstract

The utility model provides a cutting head protection device of a coal mining development machine, which comprises a cutting head body, wherein the outer end of the cutting head body is provided with a positioning plate, and the positioning plate is provided with a positioning groove adapted to the cutting head body; the cutting head comprises a cutting head body, a positioning plate, a corrugated pipe, a first positioning ring, a second positioning ring, a first fixing ring and a second fixing ring, wherein the positioning plate is arranged on the periphery of the cutting head body; the utility model discloses simple structure, compactness, excellent in use effect, protector is not fragile, has stronger practicality.

Description

Coal mining heading machine cutterhead protector

Technical Field

The utility model relates to a coal mining tunnelling is with equipment, specifically is a coal mining entry driving machine cutterhead protector.

Background

A heading machine is a machine for cutting a straight underground roadway. The heading machines are classified into an open-type heading machine and a shield-type heading machine. Mainly comprises a walking mechanism, a working mechanism, a loading and transporting mechanism and a transshipment mechanism. As the travelling mechanism advances forward, the cutting head in the working mechanism continuously crushes the rock and transports the crushed rock away. The cutting head is a working mechanism for the development machine to directly participate in cutting, and cutting teeth are arranged on the cutting head according to a certain rule and used for crushing coal rocks. Both the cutter-type cutting pick and the pick-type cutting pick have sharp corners, and the exposed cutting head has serious potential safety hazards to operators in a static state of the cutting head.

Some existing cutting head protection devices are usually arranged on the surface of a cutting head, but due to the adoption of the fixing structure, the protection devices are easily damaged in the tunneling process, and the service life is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal mining entry driving machine cutterhead protector to solve the problem that proposes among the above-mentioned background art.

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

a cutting head protection device of a coal mining heading machine comprises a cutting head body, wherein a positioning plate is arranged at the outer end of the cutting head body, and a positioning groove matched with the cutting head body is arranged on the positioning plate; the cutting head comprises a cutting head body, and is characterized in that a first positioning ring is arranged on a positioning plate on the periphery of the cutting head body, a fixed sleeve can be detachably arranged on the cutting head body, a second positioning ring matched with the first positioning ring is arranged on the fixed sleeve, a corrugated pipe is sleeved between the first positioning ring and the second positioning ring, and a first fixing ring and a second fixing ring matched with the first positioning ring and the second positioning ring are arranged at the two ends of the corrugated pipe respectively.

As a further aspect of the present invention: a soft cushion is arranged in the positioning groove in a matching way, and the thickness of the soft cushion is 3-

5CM。

As a further aspect of the present invention: adjusting cavities are formed in two opposite sides of the fixed sleeve, limiting blocks are connected in the adjusting cavities in a sliding mode, connecting rods are arranged on one sides, opposite to the limiting blocks, of the fixing sleeves, the connecting rods movably penetrate through the corresponding adjusting cavities, anti-moving plates matched with the cutting head body are arranged at free ends of the connecting rods, and rubber pads are arranged on one sides, opposite to the cutting head body, of the anti-moving plates;

the other side of each limiting block is rotatably connected with a bolt through a bearing, each bolt penetrates out of the corresponding adjusting cavity, and the fixed sleeve is provided with a nut corresponding to each bolt.

As a further aspect of the present invention: and a return spring is arranged on the connecting rod in the adjusting cavity.

As a further aspect of the present invention: the outer side of the first positioning ring is provided with first grooves at intervals along the circumferential direction, and the inner side of the first fixing ring is provided with first lugs which correspond to the first grooves one to one.

As a further aspect of the present invention: the outer side of the second positioning ring is provided with second grooves at intervals along the circumferential direction, and the inner side of the second fixing ring is provided with second lugs which correspond to the second grooves one to one.

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

after the structure is adopted by the utility model, the locating groove is sleeved at the outer end of the cutting head under the static state of the cutting head through the mutual matching of the locating plate, the locating groove, the corrugated pipe and the fixing sleeve which is detachably arranged on the cutting head body, and then the fixing sleeve is pulled to ensure that the corrugated pipe sleeve is sleeved at the periphery of the cutting head to completely cover the cutting teeth on the cutting head, and then the fixing sleeve is fixed on the cutting head body; when carrying out the tunnelling construction, can pull down the device, avoid protector to damage, simple structure, compactness can dismantle the setting, have improved protector's life, and protect the pick through the bellows, when not using protector, can conveniently accomodate protector, reduce area occupied, portable. In addition, the corrugated pipe is fixed through the mutual matching of the first positioning ring, the second positioning ring, the first fixing ring and the second fixing ring, the corrugated pipe can be conveniently replaced, and the corrugated pipe fixing device is simple in structure and easy to operate. The utility model discloses simple structure, compactness, excellent in use effect, protector is not fragile, has stronger practicality.

Drawings

Fig. 1 is a schematic structural diagram of a cutter head protection device of a coal mining heading machine.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.

In the figure: 1. a cutting head body; 2. positioning a plate; 3. positioning a groove; 301. a soft cushion; 4. a first positioning ring; 5. fixing a sleeve; 6. a second positioning ring; 7. a bellows; 8. a first retaining ring; 9. a second retaining ring; 10. an adjustment chamber; 11. a limiting block; 12. a connecting rod; 13. a movement prevention plate; 14. a rubber pad; 15. a bolt; 16. a nut; 17. a return spring; 18. a first groove; 19. a first bump; 20. a second groove; 21. and a second bump.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a coal mining heading machine cutting head protection device comprises a cutting head body 1, wherein a positioning plate 2 is arranged at the outer end of the cutting head body 1, a positioning groove 3 adapted to the cutting head body 1 is arranged on the positioning plate 2, and the positioning plate 2 can be sleeved at the outer end of the cutting head body 1; be equipped with first holding ring 4 on the peripheral locating plate 2 of cutterhead body 1, can dismantle on the cutterhead body 1 and be equipped with fixed cover 5, be equipped with the second holding ring 6 that suits with first holding ring 4 on fixed cover 5, the cover is equipped with bellows 7 between first holding ring 4 and second holding ring 6, be equipped with respectively at the both ends of bellows 7 with first holding ring 4 and the solid fixed ring of second holding ring 6 matched with 8 and the solid fixed ring of second 9. Through the mutual matching of the positioning plate 2, the positioning groove 3, the corrugated pipe 7 and the fixing sleeve 5 which is detachably arranged on the cutting head body 1, the positioning plate 2 is sleeved at the outer end of the cutting head in a static state of the cutting head, then the fixing sleeve 5 is pulled, the corrugated pipe 7 is sleeved on the periphery of the cutting head to completely cover picks on the cutting head, and then the fixing sleeve 5 is fixed on the cutting head body 1; when carrying out the tunnelling construction, can pull down the device, avoid protector to damage, simple structure, compactness can dismantle the setting, have improved protector's life, and protect the pick through bellows 7, when not using protector, can conveniently accomodate protector, reduce area occupied, portable. In addition, the corrugated pipe 7 is fixed through the mutual matching of the first positioning ring 4, the second positioning ring 6, the first fixing ring 8 and the second fixing ring 9, the corrugated pipe 7 can be conveniently replaced, the structure is simple, and the operation is easy.

Preferably, the positioning groove 3 is internally and adaptively provided with a soft cushion 301, and the thickness of the soft cushion 301 is 3-5CM, so that the surface damage of the cutting head body 1 caused by the friction between the positioning plate 2 and the cutting head body 1 when the outer end of the cutting head body 1 is sleeved with the positioning plate 2 can be avoided. The thickness is reasonable, and the cutting head body 1 can be protected while being positioned.

Wherein, the two opposite sides of the fixed sleeve 5 are provided with adjusting cavities 10, limiting blocks 11 are slidably connected in each adjusting cavity 10, one side of each limiting block 11 opposite is provided with a connecting rod 12, each connecting rod 12 movably penetrates through the corresponding adjusting cavity 10, the free end of each connecting rod 12 is provided with an anti-moving plate 13 adaptive to the cutting head body 1, and one side of each anti-moving plate 13 opposite to the cutting head body 1 is provided with a rubber pad 14; the other side of each limiting block 11 is rotatably connected with a bolt 15 through a bearing, each bolt 15 penetrates through the corresponding adjusting cavity 10, and the fixed sleeve 5 is provided with a nut 16 corresponding to each bolt 15. After the cutting pick is completely shielded by the corrugated pipe 7, the fixed sleeve 5 can be fixed by mutually matching the thread 15, the nut 16, the limiting block 11, the connecting rod 12 and the anti-moving plate 13, and the friction force can be increased by the arranged rubber pad 14 to prevent the fixed sleeve 5 from moving.

Preferably, the connecting rod 12 in the adjusting cavity 10 is provided with a return spring 17, and when the fixed sleeve 5 is disassembled and assembled, the anti-moving plate 13 can be far away from the surface of the cutting head body 1 under the action of the return spring 17, so that the fixed sleeve 5 can be conveniently disassembled and assembled.

Preferably, the first grooves 18 are formed in the outer side of the first positioning ring 4 at intervals along the circumferential direction, the first protruding blocks 19 corresponding to the first grooves 18 one to one are arranged on the inner side of the first fixing ring 8, and friction between the corrugated pipe 7 and the first positioning ring 4 and between the corrugated pipe 7 and the first fixing ring 8 can be increased, so that the corrugated pipe 7 is not prone to falling off. Second recess 20 is equipped with along circumference interval in the second holding ring 6 outside, is equipped with the second lug 21 with each second recess 20 one-to-one in the inboard of the solid fixed ring 9 of second, increases the friction between bellows 7 and second holding ring 6 and the solid fixed ring 9 of second, makes bellows 7 be difficult for droing.

The utility model discloses a theory of operation is: under the static state of the cutting head, the positioning plate 2 is sleeved at the outer end of the cutting head, then the fixing sleeve 5 is pulled, the corrugated pipe 7 is sleeved at the periphery of the cutting head to completely cover picks on the cutting head, and then the fixing sleeve 5 is fixed on the cutting head body 1; when the tunneling construction is carried out, the device can be detached, and the damage of the protection device is avoided.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A coal mining heading machine cutting head protection device comprises a cutting head body (1), and is characterized in that a positioning plate (2) is arranged at the outer end of the cutting head body (1), and a positioning groove (3) matched with the cutting head body (1) is formed in the positioning plate (2); be equipped with first holding ring (4) on cutterhead body (1) outlying locating plate (2), can dismantle on cutterhead body (1) and be equipped with fixed cover (5), be equipped with second holding ring (6) that suit with first holding ring (4) on fixed cover (5), the cover is equipped with bellows (7) between first holding ring (4) and second holding ring (6), be equipped with respectively with first holding ring (4) and second holding ring (6) matched with first solid fixed ring (8) and the solid fixed ring of second (9) at the both ends of bellows (7).

2. A coal mining and tunneling machine cutter head protection device according to claim 1, characterized in that a cushion (301) is correspondingly arranged in the positioning groove (3), and the thickness of the cushion (301) is 3-5 CM.

3. The coal mining and tunneling machine cutter head protection device according to claim 1, characterized in that two opposite sides of the fixing sleeve (5) are provided with adjusting cavities (10), limiting blocks (11) are slidably connected in each adjusting cavity (10), a connecting rod (12) is arranged on one side opposite to each limiting block (11), each connecting rod (12) movably penetrates through the corresponding adjusting cavity (10), a moving prevention plate (13) adapted to the cutter head body (1) is arranged at the free end of each connecting rod (12), and a rubber pad (14) is arranged on one side of each moving prevention plate (13) opposite to the cutter head body (1);

the other side of each limiting block (11) is rotatably connected with a bolt (15) through a bearing, each bolt (15) penetrates out of the corresponding adjusting cavity (10), and a nut (16) corresponding to each bolt (15) is arranged on the fixed sleeve (5).

4. A shearer head guard according to claim 3, characterized in that the connecting rods (12) in the adjustment chambers (10) are provided with return springs (17).

5. A coal mining entry machine cutter head protection device according to claim 1, characterized in that the first locating ring (4) is provided with first grooves (18) on the outer side at intervals along the circumferential direction, and first lugs (19) corresponding to the first grooves (18) are provided on the inner side of the first fixing ring (8).

6. A shearer head guard according to claim 1, characterized in that the second retaining ring (6) is provided with second grooves (20) on the outside at intervals in the circumferential direction, and second projections (21) corresponding to the second grooves (20) are provided on the inside of the second retaining ring (9).