CN2133673Y

CN2133673Y - Horsehead

Info

Publication number: CN2133673Y
Application number: CN 92224485
Authority: CN
Inventors: 毕华照; 何贵; 郑葆明
Original assignee: 毕华照
Priority date: 1992-06-17
Filing date: 1992-06-17
Publication date: 1993-05-19
Anticipated expiration: 2002-06-17

Abstract

The utility model discloses an advanced support horsehead which is used for the working face of the underground mining in the coal mine. Metal arch supports are used for supporting in the underground coal road of the coal mine, but the roof fall accident is always caused because of the breaking of the roof plate at the heading end. The advanced support can be realized by the utility model. A pi type horsehead whose cross section is n-shaped is used by the structure of the horsehead, and both ends of the pi type horsehead are provided with holes and are respectively provided with a fastening hook (17) and a horsehead hook (8). The fastening hook and the horsehead hook are respectively hooked on two contiguous arch supports. The two contiguous supports are a first arch support and a second arch support of the heading working face. Two pi type horseheads are connected by a pin (18), and a horizontal wedge (19) and a height-adjusting wedge (9) are used to adjust the angle of the first pi type horsehead.

Description

Horsehead

A kind of advance support beam that is used for getting working face under the coal mine.

At present, when coal road tunnels under the coal mine, need use the metal arch bracket support at a certain distance, yet when roof cracking, at heading end, Chang Yin has little time supporting and causes roof fall accident, jeopardize operating personnel's safety, influence normally carrying out of work cycle.Through understanding and patent retrieval, do not find and the similar device of the utility model domestic and international excavation operation situation.

The purpose of this utility model is to play the effect of advance support, avoids having an accident, and ensures operating personnel's safety, and normally successfully tissue is produced.

Concrete structure of the present utility model is as follows: (1) and (2) is first road and the second road arch support of driving face in the accompanying drawing, (3) and (4) be improved towering type beam, two rectangular openings (5) and (6) are opened in the rear end of towering type beam, a bearing pin (7) is installed in the middle of rectangular opening (5) and (6), a beam hook (8) is installed in the middle of rectangular opening (5) and (6), beam is hooked on the arch support, be equipped with one in the chute (20) of beam hook (8) bottom and heighten wedge (9), heightening the last garden of wedge (9) cambered surface contacts with towering ellbeam lower plane, front end at towering ellbeam adds a weldering corbel (10), be equipped with rubber packing (11) on the corbel (10), rubber packing (11) is fixed on the corbel (10) with screw (12).Simultaneously, also be welded with hanger bracket (13) on the towering ellbeam, hanger bracket (13) is hinged with suspension bracket (14), and bearing pin (15) therefrom passes.Suspension bracket (14) top is welded with a cover (16), and grab (17) is packed into wherein, and grab (17) is hooked on the arch form support.In addition, when two towering ellbeams join, still use pin (18) and horizontal wedge (19).

The utility model can be realized advance support, and the arch support of work plane front portion is coupled to each other, and has increased the steadiness of support.

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is the A-A section of front view;

Accompanying drawing 3 is the B-B section of front view;

Accompanying drawing 4 is the C-C section of front view;

When using the utility model, is front end with the end that grab (17) is arranged on the towering ellbeam earlier, grab (17) is stuck on one arch support, beam hook (8) is hooked on the second road arch support for the rear end.And then use a towering ellbeam rear end to link to each other with pin (18) with the front end of a back towering ellbeam, use horizontal wedge (19) leveling again, simultaneously, heighten the angle that wedge (9) also can be heightened the towering ellbeam in first road, adjust the elevation angle and become 0～15 ° with horizontal plane, to adapt to the variation in tunnel.

Claims

1, a kind of advance support beam that is used for the down-hole driving face is characterized in that: towering type beam two ends have grab and beam hook respectively, and grab and beam hook are hooked in respectively on the two adjacent arch supports.

2, device according to claim 1 is characterized in that: the towering type beam (3) of arch support (1) front and the elevation angle of horizontal plane are 0～15 °, heighten in the slideway that wedge is contained in the beam hook, heighten that the garden cambered surface contacts with towering ellbeam lower plane on the wedge.