CN201202480Y

CN201202480Y - Integral top beam

Info

Publication number: CN201202480Y
Application number: CNU2008200000054U
Authority: CN
Inventors: 李泽宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-02
Filing date: 2008-01-02
Publication date: 2009-03-04
Anticipated expiration: 2018-01-02

Abstract

The utility model discloses an overall top beam of a hydraulic support bracket on an underground coal face, comprising a main top beam; the main top beam is provided with a device connected with a protrusive beam, a device connected with a gangue retaining device or with a tail beam, and a column nest connected with a hydraulic support column; wherein, the overall top beam also comprises at least a filling part which is connected to the main top beam and can move up and down relative to the main top beam; each filling part is provided with at least a column nest connected with the hydraulic support column; the adjustment on the support force to the filling part helps reducing the enormous bending moment and torque borne by the entire top beam due to the unevenness of a top plate, so as to reduce the weight and cost of the top beam. As the overall top beam is relatively wider and has small bracket spacing, a top network can be untied during coal caving, thereby reducing unit coal coat.

Description

A kind of integral top beam

Technical field

The utility model relates to a kind of back timber that is used for the hydraulic support of coal-face supporting roof under the coal mine.

Background technology

Hydraulic support divides fully mechanized mining supporter and hydraulic prop for sliding mine caps two big classes, and the utility model is the back timber of marginal a kind of hydraulic support.Its background technology one is the technology described in the Chinese coal industry " hydraulic prop for sliding mine caps general technical specifications ".Prior art in this field has hydraulic prop for moving suspended top beam (Chinese patent application number 88104291.9); Triadius type hydraulic support (Chinese patent application number 96209441.2); Block form hydraulic prop for sliding mine caps (Chinese patent application number 91200747.8); 2L type hydraulic support (Chinese patent application number 200420000157.6) etc.Above-mentioned these supports, all by hydraulic prop, preceding beam moves the frame cylinder, and two split back timbers that alternately move forward and two groups of linkages etc. are partly formed.Because back timber all is narrow split type back timber, the gap is bigger between each split type back timber, thus all must tie up the top net during caving coal, so increased cost of ton coal.Also have a class to adopt the hydraulic support of integral top beam in addition, lift-moving type hydraulic support (Chinese patent application number 97100626.1) for example, chain suspension type hydraulic support (Chinese patent application ZL200520019152.2) etc., the back timber broad of this class hydraulic support, empty top area is little, can as fully mechanized mining supporter, not tie up top net caving coal, but because the back timber of this class support all is the box structure of an integral body, its end face all is the plane, some part of end face can not contact top board when running into ceiling not, and below back timber under the support of each pillar, back timber can be subjected to huge moment of torsion like this, distortion even damage easily are distorted.

Background technology two is fully mechanized mining supporters, and fully mechanized mining supporter comprises parts such as linkage between back timber, bottom girder, caving shield, back timber and the bottom girder and pillar.The back timber of fully mechanized mining supporter also can run into huge moment of torsion when running into not ceiling, in order to bear such moment of torsion, during the design fully mechanized mining supporter all is to make these parts have very high strength and stiffness, can resist huge moment of flexure and moment of torsion when running into not ceiling, but so just make fully mechanized mining supporter weigh tens tons, even tens tons, cost an arm and a leg, tight to the geology conditional request, down-hole carrying is inconvenient, and institute so that apply is restricted.

The utility model content

The technical problems to be solved in the utility model provides the part that a kind of weight has only fully mechanized mining supporter, convenient in carrying, and to the ceiling adaptive capacity is not strong, again can be at the back timber of not tiing up caving coal under the situation of netting on the top.In order to address the above problem, the utility model provides a kind of integral top beam that is used for the hydraulic support of coal-face under the coal mine, this integral top beam comprises main canopy, this main canopy is provided with the device that is connected with preceding beam, the device that is connected with retaining cash device or tail boom, the needling that is connected with hydraulic prop, wherein said integral top beam also comprises and is connected to described main canopy and can fills up part with respect to up and down at least one of main canopy, and each described part of filling up is provided with the needling that at least one is connected with hydraulic prop.

Described integral top beam can also comprise caving shield, tilting prevention device and accent rack device.

Preferably, described main canopy and described at least one to fill up the complementary plan view shape that forms of part be rectangle.

Described main canopy and described at least one fill up the complementary plan view shape that forms of part and can have in circular arc chamfering, groove, camber line limit, the stage portion at least one.

The end face of described main canopy can be the plane.Perhaps, the end face of described main canopy constitutes by the first half on plane with respect to the latter half of the downward warpage of this first half.

Described main canopy with described at least one fill up the part can be connected by articulated structure, connecting rod or their combination.Perhaps, described main canopy with described at least one fill up the part can be connected by guide rail.Perhaps, described main canopy with described at least one fill up the part can be connected by flexible piece.Described flexible piece can be chain link, chain, wire rope or spring.Perhaps, described main canopy with described at least one fill up the part between can be connected by the combination of connecting rod, guide rail, flexible piece, articulated structure.

A kind of integral top beam of the utility model comprises the back timber part, the device that is connected with preceding beam, the device that is connected with retaining cash device or tail boom, the needling that is connected with hydraulic prop, sometimes also comprise caving shield, the plan view shape of making the as a whole back timber that moves forward together when it is characterized in that moving frame is incomplete rectangle or incomplete approximate rectangle, and fills up part by other at least one and mend and to become complete substantially rectangle or benefit becomes complete substantially approximate rectangle.

Described incomplete rectangle or incomplete approximate rectangle are to be that the back timber on plane lacks the shape that one or several parts form by end face.

Described incomplete rectangle or incomplete approximate rectangle are that the first half by end face is the plane, and latter half lacks the shape that one or several parts form for the back timber of warpage downwards.

Described incomplete rectangle or incomplete approximate rectangular segment and fill up syndeton between the part be articulated structure or (with) structure by rod hinge connection.

Described incomplete rectangle or incomplete approximate rectangular segment are connected for the guide rail class with the syndeton of filling up between the part.

Described incomplete rectangle or incomplete approximate rectangular segment are that flexible piece is connected with the syndeton of filling up between the part.Flexible piece comprises chain link, chain, wire rope, spring etc.

Described incomplete rectangle or incomplete approximate rectangular segment are compound connection the by being combined between connecting rod, guide rail, flexible piece, the articulated structure with the syndeton of filling up between the part.

Described complete substantially rectangle or complete substantially approximate rectangle be increased and decreased in rectangle or on approximate rectangular basis some little local structures and (or) rectangular limit is become camber line, oblique line or broken line by straight line.

After adopting such structure, just the monolithic back timber can be split into 2 or a plurality of part that upper and lower displacement can take place relatively, reduce the moment that whole back timber is subjected to by the support force of adjusting filling up part, thereby reach the purpose that reduces back timber weight.Remain individual rectangle or the approximate rectangular integral top beam of being shaped as through the back timber after filling up simultaneously.Because back timber is wide, the frame spacing is little, so the caving coal can not tied up the top net, when having solved frame type caving coals such as cantilever support, block form support because of tiing up the problem that the top net causes the cost of ton coal raising.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the vertical view of first kind of embodiment of a kind of integral top beam of the utility model.

Fig. 2 is the vertical view of second kind of embodiment of a kind of integral top beam of the utility model.

Fig. 3 is the vertical view of a kind of the third embodiment of integral top beam of the utility model.

Fig. 4 a and Fig. 4 b are the front view and the vertical views of the 4th kind of embodiment of a kind of integral top beam of the utility model.

Fig. 5 is the vertical view of the 5th kind of embodiment of a kind of integral top beam of the utility model.

Fig. 6 is the vertical view of the 6th kind of embodiment of a kind of integral top beam of the utility model.

Fig. 7 is the vertical view of the 7th kind of embodiment of a kind of integral top beam of the utility model.

Fig. 8 is the vertical view of the 8th kind of embodiment of a kind of integral top beam of the utility model.

The specific embodiment

In conjunction with Fig. 1, first kind of embodiment of a kind of integral top beam of the utility model comprises main canopy 1, fill up part 2 for two, preceding beam 10, the device 18 of beam 10 before installing, connect main canopy 1 and hinge 5 and the guide rail 3 of filling up part 2, the linkage 17 that links to each other with waste rock board.Installing plate spring 14 and locating part 15 as required.

In conjunction with Fig. 2, second kind of embodiment of a kind of integral top beam of the utility model comprises main canopy 1, fills up part 2, connects main canopy 1 and rod hinge connection structure 6 and the flexible piece 4 of filling up part 2.In this embodiment, rectangular two limits have become oblique line 13 by vertical straight line, and this moment, back timber was the approximate rectangle of trapezoidal shape.

In conjunction with Fig. 3, the third embodiment of a kind of integral top beam of the utility model comprises main canopy 1, fills up part 2, guide rail 3, stopping means 15 and the little structure 8 that is shaped as circular arc chamfering and little groove.

In conjunction with Fig. 4 a and Fig. 4 b, the front view and the vertical view of the 4th kind of embodiment of a kind of integral top beam of the utility model, comprise that end face is the main canopy 1 on plane 10, end face 11 is to the caving shield 9 of declivity, fill up part 2, connect the flexible piece 4 of filling up part 2 and caving shield 9, connect main canopy 1 and bar linkage structure 6 and the locating part 15 of filling up part 2.This back timber is usually used in the work plane of caving coal or roof cracking.

In conjunction with Fig. 5, the 5th kind of embodiment of a kind of integral top beam of the utility model, comprise and be shaped as imperfect rectangular main canopy 1, can lifting fill up part 2, connect main canopy 1 and the guide rail 3 of filling up part 2, flexible piece 4, several flat springs 14 that part 2 is in more satisfactory position are filled up in hinge arrangement 7 and assurance.

In conjunction with Fig. 6, the 6th kind of embodiment of a kind of integral top beam of the utility model comprises main canopy 1, fills up part 2, connects main canopy 1 and hinge 5 and the flat spring 14 of filling up part 2.

In conjunction with Fig. 7, the 7th kind of embodiment of a kind of integral top beam of the utility model comprises main canopy 1, fills up part 2, connects main canopy 1 and rod hinge connection structure 6 and the little structure 8 of filling up part 2.

In conjunction with Fig. 8, the 8th kind of embodiment of a kind of integral top beam of the utility model comprises main canopy 1, fills up part 2, connects main canopy 1 and the rod hinge connection structure 6 of filling up part 2.In this embodiment, rectangular two limits have become camber line 12 by vertical straight line, and this moment, back timber was the approximate rectangle on bent limit.

In above-mentioned each embodiment all be have at least one can be up and down fill up part 2, when use the down-hole, fill up a hydraulic prop all is installed on the part 2 at least at each, because these hydraulic props directly withstand on the below of filling up part, and support force is directly delivered on the top board of work plane, so reduced to affact bending moment and moment of torsion on the main canopy 1, so also just the weight of main canopy 1 be can correspondingly reduce, thereby the weight and the cost of whole support reduced.

It is sometimes need be by stopping means 15 spacing and reset etc. with flat spring 14 to fill up the heave amplitude of part 2 and initial position; track-type facilities 3; caving shield 9 also is just to be provided with in case of necessity; and in each embodiment, can be provided with; hinge 5 in each embodiment; linkage 6; flexible piece 4 can be changed mutually each other; quantity can increase and decrease; the position can be adjusted; the curved surface shaped that upwarps is slightly also often made on the last plane 10 of back timber; fill up the top of part 2 and also can make the shape that raises up; filling up the quantity of part 2 and needling 16 and position can conversion; and in each embodiment, all may increase and decrease some little structures, resemble above-mentioned these simple transformation and all drop in the scope of the utility model protection.

Claims

1. be used for a kind of integral top beam of the hydraulic support of coal-face under the coal mine, comprise main canopy, this main canopy is provided with the device that is connected with preceding beam, the device that is connected with retaining cash device or tail boom, the needling that is connected with hydraulic prop,

It is characterized in that described integral top beam also comprises is connected to described main canopy and can fills up part with respect to up and down at least one of main canopy, and each described part of filling up is provided with the needling that at least one is connected with hydraulic prop.

2. a kind of integral top beam as claimed in claim 1 is characterized in that described integral top beam also comprises caving shield, tilting prevention device and accent rack device.

3. a kind of integral top beam as claimed in claim 1, it is characterized in that described main canopy and described at least one to fill up the complementary plan view shape that forms of part be rectangle.

4. as claim 1 or 3 described a kind of integral top beams, it is characterized in that described main canopy and described at least one fill up the complementary plan view shape that forms of part and have in circular arc chamfering, groove, camber line limit, the stage portion at least one.

5. a kind of integral top beam as claimed in claim 1, the end face that it is characterized in that described main canopy is the plane.

6. a kind of integral top beam as claimed in claim 1, the end face that it is characterized in that described main canopy constitutes by the first half on plane with respect to the latter half of the downward warpage of this first half.

7. a kind of integral top beam as claimed in claim 1, it is characterized in that described main canopy (1) with described at least one fill up the part (2) be connected by articulated structure (7), connecting rod (6) or their combination.

8. a kind of integral top beam as claimed in claim 1, it is characterized in that described main canopy with described at least one fill up the part be connected by guide rail (3).

9. a kind of integral top beam as claimed in claim 1, it is characterized in that described main canopy with described at least one fill up the part be connected by flexible piece (4).

10. a kind of integral top beam as claimed in claim 9 is characterized in that flexible piece (4) is chain link, chain, wire rope or spring.

11. a kind of integral top beam as claimed in claim 1, it is characterized in that described main canopy with described at least one fill up that the combination by connecting rod (6), guide rail (3), flexible piece (4), articulated structure (5) is connected between the part.