CN214997814U

CN214997814U - Upper corner end support

Info

Publication number: CN214997814U
Application number: CN202121621867.0U
Authority: CN
Inventors: 滕飞; 杨宏光; 邱洋; 孙宏
Original assignee: Shenyang Tian An Technology Co ltd
Current assignee: Shenyang Tian An Technology Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-03
Anticipated expiration: 2031-07-16

Abstract

An upper corner end support solves the problems of low supporting efficiency, poor safety, resource waste and high operation cost of the existing upper corner area supporting mode. Be provided with the base assembly of back timber assembly including the top, its characterized in that: two groups of supporting upright posts and a vertically arranged lifting guide mechanism are arranged between the top beam assembly and the base assembly, the fixed end of the lifting guide mechanism is connected with the base assembly, and the telescopic end of the lifting guide mechanism is connected with the top beam assembly; a frame moving hydraulic cylinder is arranged at the front end of the base assembly; the front end of the top beam assembly is provided with a middle telescopic beam, and the rear end of the top beam assembly is provided with a tail beam assembly. The multi-point support device has the advantages of being reasonable in design and compact in structure, being capable of solving the multi-point support problem of the intersection of the fully mechanized coal mining face and the return air roadway, being used for supporting a roadway roof and blocking gangue falling off in a goaf, being convenient for the movement of an exhaust pipeline, effectively reducing the labor intensity of workers, improving the operation efficiency and being strong in safety.

Description

Upper corner end support

Technical Field

The utility model belongs to the technical field of the colliery is supporting equipment down, concretely relates to can solve and combine the multiple spot support problem of adopting working face and return air tunnel cross section, can be used to strut the tunnel roof and block the waste rock that the collecting space area dropped, the removal of the exhaust pipe of being convenient for effectively alleviates workman's intensity of labour, improves the operating efficiency, the strong upper corner end support of security.

Background

Along with the wide application of various mechanized equipment in the underground coal mine, the coal mining efficiency is greatly improved. The smooth use of the mechanized equipment is based on the stability of the roadway and the working face, so that the safety, the adaptability and the versatility of the coal mining supporting equipment are very important, and the coal mining efficiency and the safety of the working face are directly influenced.

The upper corner refers to a triangular zone which is close to the upper side of the return airway and the edge of the gob at the same time and on the return airway, the upper corner serves as a joint of the working face and the return airway, and the supporting operation at the position meets the supporting requirement on a top plate and is matched with an adjacent working face support and a roadway side wall together to complete the supporting of the gob. In addition, due to the particularity of the coal face, the upper corner area is poor in ventilation, the temperature and the humidity are high, gas released by intersection of the goaf and the mining face is easy to accumulate, the gas concentration is high, and the special coal face is the key point for preventing and controlling the gas on the working face. Therefore, a separate exhaust duct must be provided at the upper corner to exhaust explosive gases such as gas in time.

In the traditional upper corner supporting operation, a sand bag wall is manually piled up, and an exhaust pipeline is installed in the sand bag. With the progress of coal mining, the position of the upper corner can move continuously along with the advance of the fully mechanized mining face, so that new sand bag walls need to be piled up continuously in the supporting operation of the upper corner, and old exhaust pipelines need to be abandoned. The traditional upper corner supporting operation mode has the disadvantages of low supporting efficiency, poor safety, resource waste and high operation cost. There is a need for improvements in the prior art upper corner area bracing practices and apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model is exactly to above-mentioned problem, a can solve to combine the multiple spot supporting problem of adopting working face and return air lane cross section, can be used to strut the tunnel roof and block the waste rock that the collecting space area dropped, the removal of the exhaust pipe of being convenient for effectively alleviates workman's intensity of labour, improves the operating efficiency, the strong upper corner end support of security.

The utility model adopts the technical proposal that: this upper corner end support includes base group body, its characterized in that: a top beam assembly is arranged above the base assembly, two groups of supporting stand columns are arranged between the top beam assembly and the base assembly, a vertically-arranged lifting guide mechanism is arranged between the two groups of supporting stand columns, the fixed end of the lifting guide mechanism is connected with the base assembly, and the telescopic end of the lifting guide mechanism is connected with the top beam assembly; meanwhile, a frame moving hydraulic cylinder is arranged at the front end of the base assembly, and the front end of the frame moving hydraulic cylinder is connected with a base of a forepoling support arranged in front; the front end of the top beam assembly is provided with a middle telescopic beam, the front end of the middle telescopic beam is connected with the top beam of the forepoling support arranged in front, and the rear end of the top beam assembly is provided with a tail beam assembly which is arranged vertically and downwards.

The base assembly body is composed of a bearing base, a lower column nest of an upright column is arranged on the bearing base, and the lower end of the supporting upright column is arranged in the lower column nest of the upright column; the front end of the bearing base is provided with a movable frame cylinder hinged lug plate, and the rear end of the bearing base is provided with a tail wide box; the left side and the right side of the tail wide box are respectively and movably provided with a base side guard plate, and the base side guard plates are connected with the tail wide box through a base side pushing hydraulic cylinder. The pressure of a top plate born by the whole end support is transmitted to the base assembly and the bottom plate through the supporting upright posts, and the rear goaf is temporarily sealed by utilizing the tail wide box at the rear end of the base assembly and the base side protection plates at the two sides of the base assembly.

The top beam assembly consists of a support top beam, an upright post upper post nest is arranged on the support top beam, and the upper end of the support upright post is arranged in the upright post upper post nest; the front end of the supporting top beam is provided with a middle beam hinged ear plate, and the rear end of the supporting top beam is provided with a tail beam hinged part; and the left side and the right side of the supporting top beam are respectively movably provided with a top beam side guard plate, and the top beam side guard plates are connected with the supporting top beam through top beam side pushing hydraulic cylinders. The top beam assembly is used for bearing the pressure of the top plate, the integrity of the top plate in the upper corner area is kept, the supporting area of the top plate is increased through the top beam side protection plates on the two sides of the top beam assembly, and then a sufficient and safe working space is provided for the stope face.

One side on the back timber assembly, be close to the working face is provided with the fender coal board in the detachable. To enhance protection of the sides of the end bracket.

The lifting guide mechanism comprises a guide sleeve insertion base fixedly arranged in the middle of the base assembly, a guide sleeve socket is arranged at the upper end of the guide sleeve insertion base, a lifting guide sleeve is telescopically arranged in the guide sleeve socket, and a lifting insertion column is inserted into an opening at the upper end of the lifting guide sleeve; the upper end of the lifting inserted column is hinged with a telescopic column hinge part in the middle of the top beam assembly. The guide sleeve inserting base, the lifting guide sleeve and the lifting inserting column are inserted step by step between the base assembly and the top beam assembly, guide is conducted on the top beam assembly along with the telescopic lifting of the supporting stand column, and the stability of the end support is improved.

The tail beam assembly body is composed of a supporting tail beam, a top beam hinge joint is arranged at the upper end of the supporting tail beam, and the supporting tail beam is hinged with a tail beam hinge joint at the rear end of the top beam assembly body through the top beam hinge joint; and the left side and the right side of the supporting tail beam are respectively and movably provided with a tail beam side guard plate, and the tail beam side guard plates are connected with the supporting tail beam through a tail beam side pushing hydraulic cylinder. The tail beam assembly is hinged at the rear end of the top beam assembly by the top beam hinge joint, the tail beam assembly is vertically arranged between the rear part of the top beam assembly and the rear part of the base assembly by means of gravity, and meanwhile, temporary sealing is carried out on a goaf at the rear by the aid of a supporting tail beam of the tail beam assembly and tail beam side protection plates on two sides of the tail beam assembly.

The lower end of the supporting tail beam is telescopically provided with a tail beam telescopic baffle, and a baffle hydraulic cylinder is arranged between the tail beam telescopic baffle and the supporting tail beam. When the top beam assembly rises to a higher position, the space between the rear part of the base assembly and the lower end of the tail beam assembly is sealed through the extending tail beam telescopic baffle, and the sealing effect on a rear goaf is ensured.

And an exhaust pipe fixing cylinder is arranged on the supporting tail beam in a penetrating manner, and an exhaust pipeline at the upper corner is arranged in a through cavity in the middle of the exhaust pipe fixing cylinder. The exhaust pipeline of the upper corner can move along with the end bracket, so that the potential safety hazard that explosive gas of the upper corner is easy to gather is solved, the labor intensity of workers is reduced, and the working efficiency is improved.

The utility model has the advantages that: because the utility model adopts the base assembly body with the top beam assembly body arranged above, two groups of supporting upright posts are arranged between the top beam assembly body and the base assembly body, the vertically arranged lifting guide mechanism is arranged between the two groups of supporting upright posts, the fixed end of the lifting guide mechanism is connected with the base assembly body, and the telescopic end of the lifting guide mechanism is connected with the top beam assembly body; the front end of the base assembly is provided with a frame moving hydraulic cylinder, and the front end of the frame moving hydraulic cylinder is connected with a base of a forepoling support arranged in front; the front end of the top beam assembly is provided with the middle telescopic beam, the front end of the middle telescopic beam is connected with the top beam of the forepoling support arranged in front, and the rear end of the top beam assembly is provided with the structural form of the tail beam assembly, so the structure is reasonable in design and compact, the permanent support of the upper corner area is replaced by the temporary support, the multi-point support problem of the intersection of the fully mechanized mining working face and the return airway can be solved, the device can be used for supporting the roof of the roadway and blocking gangue falling from the goaf, the movement of an exhaust pipeline is convenient, the labor intensity of workers is effectively reduced, the operation efficiency is improved, and the safety is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the base assembly in fig. 1.

Fig. 3 is a view from direction a of fig. 2.

Fig. 4 is a schematic view of a structure of the cap assembly of fig. 1.

Fig. 5 is a view from direction B of fig. 4.

Fig. 6 is a schematic view of a tail boom assembly of fig. 1.

Fig. 7 is a sectional view of an internal structure of fig. 6.

Fig. 8 is a view in the direction C of fig. 6.

The sequence numbers in the figures illustrate: 1 base assembly, 2 top beam assembly, 3 tail beam assembly, 4 supporting upright posts, 5 lifting guide sleeves, 6 lifting insertion posts, 7 coal blocking plates, 8 moving hydraulic cylinders, 9 middle telescopic beams, 10 bearing bases, 11 upright post lower post sockets, 12 guide sleeve insertion bases, 13 guide sleeve insertion ports, 14 tail wide boxes, 15 base side protection plates, 16 moving frame cylinder hinge lug plates, 17 base side pushing hydraulic cylinders, 18 supporting top beams, 19 top beam side protection plates, 20 middle beam hinge lug plates, 21 tail beam hinge parts, 22 upright post upper post sockets, 23 telescopic post hinge parts, 24 top beam side pushing hydraulic cylinders, 25 supporting tail beams, 26 tail beam telescopic baffles, 27 tail beam side protection plates, 28 top beams, 29 exhaust pipe fixing cylinders, 30 baffle hydraulic cylinders and 31 tail beam side pushing hydraulic cylinders.

Detailed Description

The specific structure of the present invention is described in detail with reference to fig. 1 to 8. The upper corner end support comprises a base assembly 1, a top beam assembly 2 is arranged above the base assembly 1, and two groups of supporting upright posts 4 are arranged between the top beam assembly 2 and the base assembly 1. The base assembly 1 is composed of a bearing base 10, two sets of column lower column nests 11 are arranged on the bearing base 10, and the lower ends of the supporting columns 4 are arranged in the corresponding column lower column nests 11. The front end of the bearing base 10 is provided with a frame moving cylinder hinged lug plate 16, and the rear end of the bearing base 10 is provided with a tail wide box 14. The left and right sides of the tail wide box 14 are respectively movably provided with a base side guard plate 15, and the base side guard plates 15 on the two sides are respectively connected with the tail wide box 14 through two groups of base side-pushing hydraulic cylinders 17. One end of the base side-pushing hydraulic cylinder 17 is arranged in the tail wide box 14, and the other end of the base side-pushing hydraulic cylinder 17 is respectively connected with the base side guard plate 15 on the corresponding side; and then the roof pressure that whole end support bore is transmitted to base assembly 1 and tunnel bottom plate through support post 4 to utilize the wide case 14 of afterbody and the base side guard plate 15 of both sides at base assembly 1 rear end, carry out interim closure to the collecting space area in rear.

The top beam assembly 2 is composed of a supporting top beam 18, two groups of column upper column sockets 22 are arranged on the supporting top beam 18, and the upper ends of the supporting columns 4 are arranged in the corresponding column upper column sockets 22. The front end of the supporting top beam 18 is provided with a middle beam hinge ear plate 20, and the rear end of the supporting top beam 18 is provided with a tail beam hinge 21. And the left and right sides of the supporting top beam 18 are respectively movably provided with top beam side protection plates 19, and the top beam side protection plates 19 on the two sides are respectively connected with the supporting top beam 18 through two groups of top beam side pushing hydraulic cylinders 24. One end of the top beam side pushing hydraulic cylinder 24 is arranged in the supporting top beam 18, and the other end of the top beam side pushing hydraulic cylinder 24 is respectively connected with the top beam side guard plate 19 on the corresponding side. Therefore, the top beam assembly 2 is used for bearing the pressure of the top plate, the integrity of the top plate in the upper corner area is kept, the supporting area of the top plate is increased through the top beam side protection plates 19 on the two sides of the top beam assembly 2, and a sufficient safe working space is provided for a stope working face. In order to strengthen the protection to the side part of the end bracket, a coal baffle plate 7 is detachably arranged on one side, close to the working surface, of the supporting top beam 18 of the top beam assembly 2.

A vertically arranged lifting guide mechanism is arranged between the two groups of supporting upright posts 4, and the lifting guide mechanism comprises a guide sleeve insertion base 12 fixedly arranged in the middle of a bearing base 10 of the base assembly 1; the upper end of the guide sleeve plugging base 12 is provided with a guide sleeve plugging port 13, the guide sleeve plugging port 13 is internally provided with a lifting guide sleeve 5 in a telescopic mode, and a lifting plugging column 6 is further plugged into an opening at the upper end of the lifting guide sleeve 5. The upper end of the lifting inserted column 6 is hinged with a telescopic column hinge part 23 arranged in the middle of the supporting top beam 18 of the top beam assembly 2; with through between base assembly 1 and the back timber assembly 2, the uide bushing grafting base 12, the lift uide bushing 5 and the lift inserted column 6 that the grafting set up step by step come to lead along with the flexible lift of support post 4 for back timber assembly 2, and then promote the stability of end support.

The rear end of the supporting top beam 18 of the top beam assembly 2 is provided with a tail beam assembly 3 which is arranged vertically and downwards. The tail beam assembly 3 is composed of a supporting tail beam 25, a top beam hinge 28 is arranged at the upper end of the supporting tail beam 25, and the supporting tail beam 25 is hinged with a tail beam hinge 21 at the rear end of the top beam assembly 2 through the top beam hinge 28. The left side and the right side of the supporting tail beam 25 are respectively and movably provided with tail beam side guard plates 27, and the tail beam side guard plates 27 on the two sides are respectively connected with the supporting tail beam 25 through two groups of tail beam side pushing hydraulic cylinders 31. One end of the tail beam side pushing hydraulic cylinder 31 is arranged in the supporting tail beam 25, and the other end of the tail beam side pushing hydraulic cylinder 31 is respectively connected with the tail beam side guard plate 27 on the corresponding side; the tail beam assembly 3 is hinged at the rear end of the top beam assembly 2 by a top beam hinge joint 28, and the tail beam assembly 3 is vertically arranged between the rear part of the top beam assembly 2 and the rear part of the base assembly 1 by means of gravity; meanwhile, the rear goaf is temporarily closed by the supporting tail beam 25 of the tail beam assembly 3 and the tail beam side guard plates 27 at both sides.

A tail beam telescopic baffle 26 is telescopically arranged at the lower end of a supporting tail beam 25 of the tail beam assembly body 3, and a baffle hydraulic cylinder 30 is arranged between the tail beam telescopic baffle 26 and the supporting tail beam 25; one end of the baffle hydraulic cylinder 30 is arranged in the support tail beam 25, and the other end of the baffle hydraulic cylinder 30 is connected with the tail beam telescopic baffle 26. Therefore, when the top beam assembly 2 rises to a higher position, the space between the tail vertical box at the rear part of the base assembly 1 and the lower end of the tail beam assembly 3 is sealed through the extending tail beam telescopic baffle 26, and the sealing effect on a rear goaf is ensured.

The front end of the bearing base 10 of the base assembly body 1 is provided with a moving hydraulic cylinder 8, the rear end of the moving hydraulic cylinder 8 is connected with a moving cylinder hinged lug plate 16 of the base assembly body 1, and the front end of the moving hydraulic cylinder 8 is connected with a base of a forepoling support arranged in front. The front end of a supporting top beam 18 of the top beam assembly 2 is provided with a middle telescopic beam 9, the rear end of the middle telescopic beam 9 is connected with a middle beam hinged lug plate 20 of the top beam assembly 2, and the front end of the middle telescopic beam 9 is connected with the top beam of a forepoling support arranged in front. Therefore, the forepoling support arranged in front of the upper corner end bracket is used as a fulcrum, and the upper corner end bracket is pulled to move in coordination with the reciprocating expansion of the bracket moving hydraulic cylinder 8 and the middle expansion beam 9. An exhaust pipe fixing cylinder 29 is also arranged on the supporting tail beam 25 of the tail beam assembly body 3 in a penetrating way, and an exhaust pipeline of the upper corner area is arranged in a middle through cavity of the exhaust pipe fixing cylinder 29; and then the exhaust pipeline of the upper corner can move along with the end bracket, thereby solving the potential safety hazard that explosive gas at the upper corner is easy to gather, reducing the labor intensity of workers and improving the working efficiency.

When the upper corner end bracket is used, firstly, the end bracket is arranged at the upper corner area at the intersection of the fully mechanized mining face and the return airway; then, the base assembly 1 and the top beam assembly 2 of the upper corner end bracket are respectively connected with the base and the top beam of the forepoling bracket arranged in front by using the frame moving hydraulic cylinder 8 and the middle telescopic beam 9, so that the forepoling bracket in front is used as a fulcrum, and the reciprocating expansion of the frame moving hydraulic cylinder 8 and the middle telescopic beam 9 is matched to pull the upper corner end bracket of the frame lowering to move forwards. After the upper corner end bracket is moved to the right position, the supporting upright post 4 is extended out, so that the top beam assembly 2 is contacted with the roadway top plate in the upper corner area, and top beam side protection plates 19 on two sides of the top beam assembly 2 are extended out, so that the top plate is supported and the integrity of the top plate in the upper corner area is maintained. Meanwhile, the goaf behind the end bracket is temporarily closed by the tail wide box 14 and the two-side, extended base side guard plate 15 at the rear end of the base assembly 1, and the supporting tail beam 25 and the two-side, extended tail beam side guard plate 27 of the tail beam assembly 3. In addition, when the top beam assembly 2 rises to a higher position and a larger distance exists between the rear part of the base assembly 1 and the lower end of the tail beam assembly 3, the tail beam telescopic baffle 26 at the lower end of the tail beam assembly 3 can be extended out to seal the space. The upper corner end support has the advantages of good stability, high reliability and convenient operation and use, and can meet the multi-azimuth supporting requirement of an upper corner area.

Claims

1. An upper corner end bracket, comprising a base assembly (1), characterized in that: a top beam assembly (2) is arranged above the base assembly (1), two groups of supporting upright posts (4) are arranged between the top beam assembly (2) and the base assembly (1), a vertically-arranged lifting guide mechanism is arranged between the two groups of supporting upright posts (4), the fixed end of the lifting guide mechanism is connected with the base assembly (1), and the telescopic end of the lifting guide mechanism is connected with the top beam assembly (2); meanwhile, a frame moving hydraulic cylinder (8) is arranged at the front end of the base assembly body (1), and the front end of the frame moving hydraulic cylinder (8) is connected with a base of a forepoling support arranged in front; the front end of the top beam assembly (2) is provided with a middle telescopic beam (9), the front end of the middle telescopic beam (9) is connected with the top beam of the forepoling support arranged in front, and the rear end of the top beam assembly (2) is provided with a vertical tail beam assembly (3) arranged downwards.

2. The upper corner end bracket of claim 1, wherein: the base assembly body (1) is composed of a bearing base (10), a lower column nest (11) is arranged on the bearing base (10), and the lower end of the support column (4) is arranged in the lower column nest (11); a movable frame cylinder hinged lug plate (16) is arranged at the front end of the bearing base (10), and a tail wide box (14) is arranged at the rear end of the bearing base (10); the left side and the right side of the tail wide box (14) are respectively movably provided with a base side guard plate (15), and the base side guard plates (15) are connected with the tail wide box (14) through a base side-pushing hydraulic cylinder (17).

3. The upper corner end bracket of claim 1, wherein: the top beam assembly (2) is composed of a support top beam (18), an upright post upper socket (22) is arranged on the support top beam (18), and the upper end of the support upright post (4) is arranged in the upright post upper socket (22); the front end of the supporting top beam (18) is provided with a middle beam hinged ear plate (20), and the rear end of the supporting top beam (18) is provided with a tail beam hinged part (21); and the left side and the right side of the supporting top beam (18) are respectively movably provided with a top beam side protection plate (19), and the top beam side protection plates (19) are connected with the supporting top beam (18) through top beam side pushing hydraulic cylinders (24).

4. The upper corner end bracket of claim 1, wherein: one side of the top beam assembly (2) close to the working surface is detachably provided with a coal baffle plate (7).

5. The upper corner end bracket of claim 1, wherein: the lifting guide mechanism comprises a guide sleeve inserting base (12) fixedly arranged in the middle of the base assembly body (1), a guide sleeve inserting opening (13) is formed in the upper end of the guide sleeve inserting base (12), a lifting guide sleeve (5) is arranged in the guide sleeve inserting opening (13) in a telescopic mode, and a lifting inserting column (6) is further inserted into an opening in the upper end of the lifting guide sleeve (5); the upper end of the lifting inserted column (6) is hinged with a telescopic column hinge part (23) in the middle of the top beam assembly (2).

6. The upper corner end bracket of claim 1, wherein: the tail beam assembly body (3) is composed of a supporting tail beam (25), a top beam hinge joint (28) is arranged at the upper end of the supporting tail beam (25), and the supporting tail beam (25) is hinged with a tail beam hinge joint (21) at the rear end of the top beam assembly body (2) through the top beam hinge joint (28); and the left side and the right side of the supporting tail beam (25) are respectively and movably provided with a tail beam side protection plate (27), and the tail beam side protection plates (27) are connected with the supporting tail beam (25) through tail beam side pushing hydraulic cylinders (31).

7. The upper corner end bracket of claim 6, wherein: and a tail beam telescopic baffle (26) is arranged at the lower end of the supporting tail beam (25) in a telescopic manner, and a baffle hydraulic cylinder (30) is arranged between the tail beam telescopic baffle (26) and the supporting tail beam (25).

8. The upper corner end bracket of claim 6, wherein: an exhaust pipe fixing cylinder (29) is arranged on the supporting tail beam (25) in a penetrating mode, and an exhaust pipeline at the upper corner is arranged in a middle through cavity of the exhaust pipe fixing cylinder (29).