CN201090230Y

CN201090230Y - Fission top beam flexible support

Info

Publication number: CN201090230Y
Application number: CNU2007201566337U
Authority: CN
Inventors: 李秋生; 董润滋; 姚贵英; 尹冬晨; 卞罡
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-11
Filing date: 2007-07-11
Publication date: 2008-07-23
Anticipated expiration: 2017-07-11

Abstract

Disclosed is a split roof-beam flexible bracket used in underground mining working surface of a coal mine. A plurality of narrow roof beams are distributed in parallel above a same base; each roof beam is supported by front and back columns; inter-beam connection blocks are used to connect the beams so as to enable certain degree of deflection and deformation between roof beams; an expansion beam is arranged inside each roof beam and controlled by a large-stroke expansion jack; an elastic guide rod is arranged between each front column and each back column; the upper end of each elastic guide rod is hinged with each roof beam, while the lower end is inserted into each base guiding sleeve whose guide wires are perpendicular to the bottom surface of the base so as to achieve lifting guiding, bracket shape maintaining and horizontal yielding; tail beams are hinged with the roof beams through pin shafts; the expansion of the insert plates in the tail beams is controlled by a tail-beam jack; when the bracket works, the expansion beams prop up the coal wall and the insert plates of the tail-beam prop up soleplates to resist horizontal external load. With light weight, high intensity, quick bracket moving, good stability, strong adaptability and convenient transportation, the utility model is particularly applicable for the coal mining working surface with uneven roof plates and soft soleplates.

Description

Split back timber 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 the split back timber 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, provide a kind of between integral support and simple rack, can better adapt to the split back timber flexible support that top board changes, and the elastic deformation by resilient guiding device, the realization level allows compression functions.

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

Split back timber flexible support mainly is made up of contiguous block, elasticity guide rod, extensible canopy, flexible jack, tail boom, tail boom jack, plate, passing oil cylinder etc. between a unsplit bedplate, a plurality of back timber, column, beam.

On same base, laterally be set up in parallel the fairlead of a plurality of guide passage lines perpendicular to base end face, base top and a plurality of narrow type back timbers of column distribution, the side of each back timber is provided with the T type gathering sill of vertical, contiguous block 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 in the support fore-and-aft plane, can improve the adaptive capacity of back timber to top board greatly; Front column, rear column are connected with each back timber with base respectively with bearing pin by ball pivot; Front end at back timber is equipped with extensible canopy, the flexible jack of big stroke is arranged in the back timber, one end and extensible canopy are hinged, the other end and back timber are hinged, and the control extensible canopy is flexible, during work, the extensible canopy front end can prop up rib, can realize the support advance support on the one hand, prevent wall caving, can prevent that also support from toppling forward; The rear portion of back timber then uses bearing pin and tail boom hinged, tail boom jack one end and tail boom are hinged, the other end and plate are hinged, the control plate is flexible, during work, the plate end is against on the base plate, can prevent pouring in of goaf rock on the one hand, a batter post that can be used as support on the other hand uses, with opposing horizontal force backward; The elastic guide bar is formed by stacking by a plurality of latch plates, it is arranged between front column and the rear column, the upper end is hinged with back timber, the bottom extend in the fairlead of base, form resilient guiding device, this device not only can play guiding, retainer type, and when back timber is subjected to big horizontal force, can realize allowing compression functions by the distortion of elasticity guide rod; Pass oil cylinder and be arranged between the left and right pillar, be used for pushing and sliding and move frame, constituted multiple functional split back timber flexible support.

The beneficial effects of the utility model are: adopt linkage, resilient guiding device between unsplit bedplate, split back timber structure and beam, constituted split back timber 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, big gun is adopted, the caving coal mining work plane, 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 a split back timber flexible support assembling front view

Fig. 2 is a split back timber flexible support beam A-A section sectional view

Fig. 3 is a split back timber flexible support beam B-B section sectional view

Among the figure, 1. contiguous block 3. flexible jack 4. back timbers 5. elasticity guide rods 6. tail booms 7. tail boom jack 8. plates 9. bases 10. rear columns 11. are passed oil cylinder 12. front columns between extensible canopy 2. beams

The specific embodiment

With reference to accompanying drawing 1, Fig. 2, Fig. 3, the utility model mainly is made up of contiguous block 2, flexible jack 3, back timber 4, elasticity guide rod 5, tail boom 6, tail boom jack 7, plate 8, base 9, rear column 10, passing oil cylinder 11, front column 12 between extensible canopy 1, beam.Base 9 is a unsplit bedplate, laterally is provided with the fairlead of a plurality of guide passage lines perpendicular to base 9 bottom surfaces on it; The a plurality of narrow type back timbers 4 of base 9 tops and column distribution, the side of each back timber 4 is provided with the T type gathering sill of vertical, contiguous block 2 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 4 in the support fore-and-aft plane; Front column 12, rear column 10 are connected with each back timber 4 with base with bearing pin by ball pivot; Front end at back timber 4 is equipped with extensible canopy 1, and the flexible jack 3 of big stroke is arranged in the back timber 4, and an end and extensible canopy 1 are hinged, and the other end and back timber 4 are hinged, and control extensible canopy 1 is flexible, and during work, the extensible canopy front end can be against on the rib; The rear portion of back timber 4 then uses bearing pin and tail 6 beams hinged, and tail boom jack 7 one ends and tail boom 6 are hinged, and the other end and plate 8 are hinged, and the control plate is flexible, and during work, plate 8 ends are against on the base plate; Elastic guide bar 5 is formed by stacking by a plurality of latch plates, it is arranged between front column 12 and the rear column 10, the upper end is hinged with back timber 4, the bottom extend in the fairlead of base 9, form resilient guiding device, this device not only can play the effect of guiding, retainer type, and when back timber is subjected to big horizontal force, can realize allowing compression functions by the distortion of elasticity guide rod 5; Pass oil cylinder 11 and be arranged between the left and right pillar, be used for pushing and sliding and move frame.

Claims

1. split back timber flexible support, mainly by a base, a plurality of back timbers, column, contiguous block between beam, the elasticity guide rod, compositions such as tail boom, it is characterized in that a plurality of narrow type back timbers (4) in same base (9) top and column distribution, connect by contiguous block (2) between beam between each back timber (4), each back timber (4) is by front column (12), rear column (10) is connected with base (9) with bearing pin with ball pivot, elasticity guide rod (5) is arranged between front column (12) and the rear column (10), the upper end is hinged with back timber (4), in the fairlead on the lower end insertion base (9), flexible jack (3) one ends of big stroke and extensible canopy (1) are hinged, the other end and back timber (4) are hinged, tail boom (6) is hinged by bearing pin and back timber (4), plate (8) places among the tail boom (6), and it is flexible by tail boom jack (7) control, pass oil cylinder (11) and be arranged between the left and right pillar, formed a multiple functional hydraulic support.

2. split back timber flexible support as claimed in claim 1 is characterized in that base (9) is a unsplit bedplate, its laterally, appropriate location between the needling of front and back, be provided with the fairlead of a plurality of guide passage lines perpendicular to base end face.

3. split back timber flexible support as claimed in claim 1, elasticity guide rod (5) is formed by stacking by steel spring plate, and on support, upper end and back timber (4) are hinged, insert in base (9) fairlead of guide passage line perpendicular to base end face the lower end, forms resilient guiding device.

4. split back timber flexible support as claimed in claim 1 is characterized in that the sidepiece of each back timber (4) is equipped with the T type gathering sill of vertical.

5. split back timber flexible support as claimed in claim 1 is characterized in that contiguous block between beam (2) is " worker " font structure, and on support, it cooperates with the T type gathering sill of each back timber sidepiece vertical, forms linkage between beam.

6. split back timber flexible support as claimed in claim 1 is characterized in that plate (8) links to each other with tail boom (6) by tail boom jack (7), forms flexible tail boom, and during work, plate (8) lower end directly arrives on the base plate.