CN201486582U

CN201486582U - Flexible support

Info

Publication number: CN201486582U
Application number: CN2009201748601U
Authority: CN
Inventors: 李秋生; 姚贵英; 国亮杰; 柳光利
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2010-05-26
Anticipated expiration: 2019-09-03

Abstract

The utility model relates to a flexible support for supporting an underground coal mining face. A plurality of narrow top beams are parallelly distributed above a base; each top beam is supported by a front vertical post and a rear vertical post; all the top beams are connected by connecting blocks, to ensure a certain relative deflection and dislocation among the top beams; expansion beams are arranged in the top beams and are controlled by large-stroke expansion jacks; when working, the expansion beams are propped against the coal wall and can resist a certain horizontal external load; elastic guide bars are arranged behind the rear vertical posts; the upper end of each elastic guide bar is hinged with a top beam through a pin shaft or a crisscross joint, and the lower end thereof is inserted into a guide sleeve in a guiding route which is vertical to the bottom surface of the base, and plays the roles of lifting, guiding, keeping the support shape, gangue blocking and horizontally pressure releasing; a gangue baffle is arranged at the tail of each top beam, to protect the elastic guide bars and prevent the gangue from flowing in. The flexible support can omit a tail beam, has the advantages of light weight, high strength, quick movement, good stability, strong adaptability, convenient loading and transportation and the like, and is particularly applicable in the supporting of coal mining faces with uneven top plates and soft bottom plates.

Description

A kind of flexible support

Technical field

The utility model relates to the support apparatus that a kind of colliery underground mining work plane uses, and is specially adapted to a kind of flexible support of middle and small scale coal mine complex geological condition.

Background technology

The coal-face support apparatus of present domestic use mainly contains integral supports such as four connection-rod support, single wobbling pole support, and two kinds of citation forms of simple rack such as sliding type cap for supporting mine roof, suspended bar timber.Characteristics such as integral support has that intensity height, weight are big, reliable operation, advancing velocity are fast, globality and good stability, but for numerous middle and small scale coal mine, owing to be subjected to the influence of factors such as geological conditions complexity and insufficient funds, limited promoting the use of of they.And simple and easy automatic shifting stands such as slipping bar compos ite support, suspended bar timber, have that volume is little, in light weight, compliance is strong, can realize the characteristics that oneself moves, but in use, that these supports occur easily is crooked, fall frame, buried column, insert problems such as the end, particularly work as a support frame takes place, the adjacent frame of very easier initiation falls frame, forms chain reaction, and ordinary production and personal security are constituted a serious threat.

Summary of the invention

The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of novel flexible support between integral support and simple rack is provided, and its rearmounted elasticity guide rod device has guiding, retainer type and retaining cash function concurrently, and can the realization level allows pressure; A plurality of back timber structures can better adapt to top board and change; Unsplit bedplate can be guaranteed support self stability and fast-moving bracket.

The purpose of this utility model can realize by following technical measures:

A kind of flexible support, mainly form by contiguous block, elasticity guide rod between a base, a plurality of back timber, column, beam, also column distribution a plurality of narrow type back timbers above base, connect by contiguous block between beam between each back timber, each back timber is connected with base with bearing pin with ball pivot by front column, rear column, flexible jack one end of big stroke and extensible canopy are hinged, and the other end and back timber are hinged, pass oil cylinder and push rod and are arranged between the left and right pillar; The elasticity guide rod is arranged in the rear portion of rear column, and the upper end and the back timber of elasticity guide rod are hinged, and insert in the fairlead of guide passage line perpendicular to base end face the lower end, and waste rock board is connected the afterbody of back timber.

The purpose of this utility model also can realize by following technical measures:

Base of the present utility model is a unsplit bedplate, is horizontally arranged with the fairlead of a plurality of guide passage lines perpendicular to base end face at its rear portion.

Elasticity guide rod of the present utility model is formed by stacking by steel spring plate, and its upper end is hinged with back timber with bearing pin or cross joint.

Back timber of the present utility model is narrow type back timber, two, three, four, five, six back timbers of back timber for being provided with, and each back timber sidepiece is equipped with one or former and later two verticals T type gathering sill.

Waste rock board of the present utility model is mounted on the back timber afterbody by bearing pin.

The beneficial effects of the utility model are:

Adopt linkage, rearmounted resilient guiding device between unsplit bedplate, split back timber structure and beam, constituted a kind of flexible support.This support had both had integral support good integrity, high, the fast characteristics of advancing velocity of stability, have again that the simple rack volume is little, in light weight, compliance is strong, be convenient to adorn, tear open, operate the characteristics of industry, can be used for that machine is adopted, blast mining face, be particularly useful for top board injustice, stope that base plate is soft, have high cost performance, can promote the use of at medium and small colliery.

Description of drawings

Fig. 1 is the flexible support outline drawing

Fig. 2 is the sectional drawing at flexible support back timber linkage place

Fig. 3 is a contiguous block outline drawing between the flexible support beam

Among the figure, 1. contiguous block 5. waste rock boards 6. elasticity guide rods 7. bases 8. rear columns 9. front columns 10. are passed oil cylinder 11. push rods between extensible canopy 2. flexible jack 3. back timbers 4. beams

The specific embodiment

With reference to accompanying drawing 1, Fig. 2, Fig. 3, the utility model mainly is made up of contiguous block 4, waste rock board 5, elasticity guide rod 6, base 7, rear column 8, front column 9, passing oil cylinder 10, push rod 11 etc. between extensible canopy 1, flexible jack 2, back timber 3, beam.Base 7 is a unsplit bedplate, laterally is provided with the fairlead of a plurality of guide passage lines perpendicular to base 7 bottom surfaces on it; The a plurality of narrow type back timbers 3 of base 7 tops and column distribution, the side of each back timber 3 is provided with the T type gathering sill of vertical, contiguous block 4 cooperates with T type gathering sill adjacent beams is fused between i-shaped beams, and linkage between the formation beam, this device can guarantee the mutual changing of the relative positions and the deflection of each back timber 3 in the support fore-and-aft plane; Front column 9, rear column 8 are connected with each back timber 3 with base 7 with bearing pin by ball pivot, and front column 9 leans forward, and rear column 8 is upright, guarantee that back timber 3 has certain opposing ability of horizontal force backward; Front end at back timber 3 is equipped with extensible canopy 1, and the flexible jack 2 of big stroke places in the back timber 3, and an end and extensible canopy 1 are hinged, and the other end and back timber 3 are hinged, and control extensible canopy 1 is flexible, and during work, extensible canopy 1 front end can be against on the rib; Waste rock board 5 usefulness bearing pins are articulated in the afterbody of back timber 3, protection elasticity guide rod 6, and cooperate the elasticity guide rod device to prevent that the goaf spoil from pouring in; Elastic guide bar 6 is formed by stacking by a plurality of latch plates, it is arranged in after the rear column 8, the upper end is hinged with back timber 3 with bearing pin or cross joint, the bottom extend in the fairlead of base 7, form resilient guiding device, this device not only can play the effect of guiding, retainer type and retaining cash, and when back timber 3 is subjected to big horizontal force, can realize allowing horizontal compression functions by the distortion of elasticity guide rod 6; Pass oil cylinder 10 and push rod 11 and be arranged between the left and right pillar, be used for pushing and sliding and move frame.

Claims

1. flexible support, mainly by a base (7), a plurality of back timbers (3), column, contiguous block between beam (4), elasticity guide rod (6) is formed, a plurality of narrow type back timbers (3) in base (7) top and column distribution, connect by contiguous block (4) between beam between each back timber (3), each back timber (3) is by front column (9), rear column (8) is connected with base (7) with bearing pin with ball pivot, flexible jack (2) one ends of big stroke and extensible canopy (1) are hinged, the other end and back timber (3) are hinged, passing oil cylinder (10) and push rod (11) is arranged between the left and right pillar, it is characterized in that: elasticity guide rod (6) is arranged in the rear portion of rear column (8), the upper end of elasticity guide rod (6) and back timber (3) are hinged, insert in the fairlead of guide passage line perpendicular to base (7) bottom surface the lower end, and waste rock board (5) is installed in the afterbody of back timber (3).

2. a kind of flexible support according to claim 1 is characterized in that: base (7) is a unsplit bedplate, is horizontally arranged with the fairlead of a plurality of guide passage lines perpendicular to base end face at its rear portion.

3. a kind of flexible support according to claim 1 and 2 is characterized in that: elasticity guide rod (6) is formed by stacking by steel spring plate, and its upper end is hinged with back timber (3) with bearing pin or cross joint.

4. a kind of flexible support according to claim 1 and 2, it is characterized in that: back timber (3) is narrow type back timber, two, three, four, five, six back timbers of back timber (3) for being provided with, each back timber sidepiece is equipped with one or former and later two verticals T type gathering sill.

5. a kind of flexible support according to claim 1 and 2 is characterized in that: waste rock board (5) is mounted on back timber (3) afterbody by bearing pin.