CN101240709A - Forward slip type hydraulic support - Google Patents
Forward slip type hydraulic support Download PDFInfo
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- CN101240709A CN101240709A CNA2007100033823A CN200710003382A CN101240709A CN 101240709 A CN101240709 A CN 101240709A CN A2007100033823 A CNA2007100033823 A CN A2007100033823A CN 200710003382 A CN200710003382 A CN 200710003382A CN 101240709 A CN101240709 A CN 101240709A
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- back timber
- leading portion
- hydraulic support
- support
- crooked
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Abstract
The present invention discloses a forward slip hydraulic support used in the working surface top board support for coal mine underground, includes integral top beam 1, hydraulic prop 8 at the bottom of top beam, chassis 25 connected with the lower of hydraulic prop 8, front extending beam and oil cylinder of front extending beam 5. The present invention is characterized in: most of forepart 9 paralleled with top board, the back part of the curving top beam of the back part 10 inclined downwardly is on the baseboard in the state of moving support, the forepart 9 supported by adjacent bracket forepart of top beam slides forward. When working surface is used, forward slip type hydraulic support is densely in a horizontal row, and especially has a strong adaptability to mining three soft coal seam.
Description
Technical field
The present invention relates to a kind of light hydraulic support that is used for the supporting of subsurface excavation face.
Background technology
Hydraulic support divides hydraulic prop for sliding mine caps and fully mechanized mining supporter two big classes, and the present invention is marginal a kind of hydraulic support.Its background technology also has two big classes, and first class 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) etc.Above-mentioned these supports, all by hydraulic prop, preceding beam moves the frame cylinder, and two back timbers and two groups of linkages etc. are partly formed.Because all be narrow split type back timber, do not keep off the cash device again, thus all must tie up the top net during caving coal, so increased cost of ton coal.A kind of retaining cash formula hydraulic support is arranged, though can the caving coal, also because every is made up of two narrower back timbers,, still need to tie up the top net so the solution of still failing of the problem of cash is leaked at the top.Also has a kind of hydraulic support that adopts integral top beam, lift-moving type hydraulic support (Chinese patent application number 97100626.1) etc. for example, this class hydraulic support comprises integral top beam or the split back timber that is supported by hydraulic prop and only contact with top board, its back timber is that forward latter two lifted to set a roof beam in place and held in the palm to front slide when moving frame, because back timber broad, empty top area is little, can as fully mechanized mining supporter, not tie up top net caving coal, but since the back timber of this class support with its below run through lifting of entire working surface certain annexation of setting a roof beam in place, limited the amplitude that certain back timber raises separately, so relatively poor to the adaptive capacity of ceiling not.Chain suspension type hydraulic support (the China Patent No.: 200510070729.7), also have a flat integral top beam to reach the hydraulic prop that props up below back timber, can not tie up top net caving coal that also has my design.The shortcoming of this support is because back timber is flat, and area is bigger, has more top coal or spoil and be deposited in the back timber top when unloading moves frame, causes and moves the increase of frame resistance, so when being used for very broken roof timbering, may cause moving difficulty.
Second largest class is a fully mechanized mining supporter, and its moving manner all is to drag on base plate to front slide by the bigger chassis of area.Fully mechanized mining supporter can not tied up top net caving coal, but fully mechanized mining supporter weighs tens tons, wherein light-duty fully mechanized mining supporter also weighs seven, eight tons, cost an arm and a leg, tight to the geology conditional request, down-hole carrying inconvenience, especially fully mechanized mining supporter can only be used for machine and adopt, can not be used for big gun and adopt, institute is so that apply and be restricted.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of also lighter than light-duty fully mechanized mining supporter, weight has only about half of light-duty fully mechanized mining supporter, convenient in carrying, can move frame laborsaving, quickly, strong to ceiling not, breaking roof adaptive capacity, can not tie up caving coal under the situation of netting on the top again, and can be used for the hydraulic support of blast mining face.In order to address the above problem, forward slip type hydraulic support of the present invention comprises the back timber of broad, and the hydraulic prop below back timber is used for the chassis that the forward slip type hydraulic support of soft seat links to each other with the hydraulic prop lower end with ining addition, and preceding beam reaches preceding beam oil cylinder, moves the frame oil cylinder.It is characterized in that: the back timber of the bending that the main part of the leading portion back segment parallel with top board is downward-sloping drags on base plate moving under the frame state its rear end, and its front end serves as to rely on to front slide with adjacent stent back timber leading portion.
Its leading portion parallel of the crooked back timber of described forward slip type hydraulic support with top board and downward-sloping up to back segment that base plate contacts between be linked to be an integral body.
Fit together by releasable connections such as hinges between its leading portion of crooked back timber of described forward slip type hydraulic support and the back segment.
Between its leading portion parallel of the crooked back timber of described forward slip type hydraulic support and the downward-sloping back segment with top board by one longitudinally axle link together.
Described forward slip type hydraulic support is characterized in that crooked back timber is bolted together by connectors such as hinge, connecting rods by girder part and several auxiliary girders.
Described forward slip type hydraulic support give crooked back timber leading portion provide support by the guide rail that is located at back timber leading portion one side be connected guide rail slide block mechanism and the connector thereof that the slide block on the adjacent back timber leading portion correspondence position is formed.
What described forward slip type hydraulic support gave that crooked back timber leading portion provides support is to slide before and after the guide rail below the crooked back timber leading portion, be parallel to top board and perpendicular to back timber and end to end can be through the truss girder of many back timbers belows.
Described forward slip type hydraulic support is in the adjusting device that is provided with connector length on the back timber or on slide block.
After adopting such structure, because flat retreading before the back timber, so the coal or the spoil that are pressed on the back timber back segment can produce the horizontal component that support is moved forward, make that to move frame laborsaving, so the integral top beam that has solved flat broads such as chain suspension type hydraulic support, lift-moving type hydraulic support problem of moving difficulty sometimes under breaking roof.Because forward slip type hydraulic support also belongs to the hydraulic support of wide back timber formula, 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 cost of ton coal to improve.Because forward slip type hydraulic support is to be support with the back timber leading portion that is in the adjacent frame under the holding state in moving the process of frame, when moving frame even can mention the chassis by hydraulic prop, unsettled reach, thus solved that various fully mechanized mining supporters such as traditional brace type, protected type and support shield cause because of its chassis leading edge specific pressure is excessive on soft base plate, move frame the time leading edge problem of scraping base plate.Because the rear end of back timber directly contacts base plate and bears certain support force, thus the load of a part of hydraulic prop can be shared, and then the moment of flexure that back timber is subjected to reduces, and so also just alleviated the weight of hydraulic support, reduced cost.This shows that this all has significant beneficial effect aspect two to forward slip type hydraulic support reducing cost of ton coal and reduction support cost.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the front view of first kind of embodiment of forward slip type hydraulic support of the present invention.
Fig. 2 is the vertical view of first kind of embodiment of forward slip type hydraulic support of the present invention under user mode.
Fig. 3 is the front view of second kind of embodiment of forward slip type hydraulic support of the present invention.
Fig. 4 is the front view of the third embodiment of forward slip type hydraulic support of the present invention.
Fig. 5 is the front view of the 4th kind of embodiment of forward slip type hydraulic support of the present invention.
Fig. 6 is the vertical view of the 5th kind of embodiment of forward slip type hydraulic support of the present invention.
The specific embodiment
In conjunction with Fig. 1 and Fig. 2, first kind of embodiment of forward slip type hydraulic support of the present invention comprises fusing the leading portion oblique below of parallel back segment with top board and the integral top beam 1 that contacts with base plate; Can be along being positioned at the sliding part 23 that lower guideway 22 on back timber 1 leading portion 9 and upper rail 24 slide; One end is connected the connector 16 that the other end is connected with the sliding part 23 that slides by pin 17 on back timber with back timber; Be supported on the hydraulic prop 8 of back timber below; The chassis 25 that is connected with hydraulic prop 8 lower ends; One end is hinged by pin 11 and back timber, the other end by pin 18 and sliding part 23 hinged move frame cylinder 12; One end is hinged by pin 19 and sliding part 23, and the other end is by pin 21 and the hinged force transmission element 20 of adjacent frame back timber front end; Before beam oil cylinder 7 and by the hinged preceding beam 5 of pin 6; What can open and close under oil cylinder 13 drives puts coal gate 15.
Below in conjunction with Fig. 2 the sequence of movement of forward slip type hydraulic support of the present invention when mining face under mine uses is described: described forward slip type hydraulic support is such by Fig. 2 in the down-hole, and the back timber of the back timber 1 of support, back timber 2, back timber 3, back timber 4 and other supports is lined up a horizontally-arranged thick and fast.Operating sequence is: begin to move frame from the left side, moved the 1st, move the 2nd then, Figure 2 shows that the state when to be ready moving the 3rd.At first the pillar 8 below the back timber 3 is carried post, back timber 3 front ends descend, this moment, the left side of back timber 3 was suspended on the back timber of adjacent supports 2 with it by the connector 16 that is connected with sliding part 23, its right side is suspended on the back timber 4 adjacent with the right side by another connector 16, and the rearmost end of back timber directly is supported on the base plate.This moment, the piston rod that moves frame cylinder 12 in support 3 left sides shrank, and spurred back timber 3 forward by the force transmission element 20 that is hinged on support 2 front ends; The piston rod that move frame cylinder 12 hinged in back timber 3 right sides and back timber 4 rear ends stretches out, and promotes sliding part 23, the back timber 3 of sliding part 23 by promoting forward with the hinged force transmission element 20 of back timber 3, and support 3 just can move forward a step like this.At this moment, if two by operation back timber 3 left and right sides move frame cylinder 12, back timber 3 left sides are pushed away forward, the right side pulls back, then back timber 3 can turn right to, otherwise turn left to.Direction mixes up the pillar 8 below the back supporting top beam 3, has so just finished and has moved frame and tuning operation.Can certainly be with the accent frame oil cylinder tuning that is contained in the back timber side.
Move in the frame operating process aforementioned, the leading portion of back timber 3 is that the connector 16 that can be connected on the adjacent frame support 4 of the adjacent frame support 2 in the left side and the right is suspended in the air together with pillar 8 below it and chassis 25, so scrape the problem at the end because of specific pressure transfinites when having solved the fully mechanized mining supporter in the prior art moving frame on soft seat.Pillar 8 and chassis 25 also can not exclusively be mentioned when moving frame certainly, and can be to the such sliding advance of support of cantilever support.
When needs caving coal, handle and to put kerosene cylinder 13 and open and get final product putting coal gate 15.
Because forward slip type hydraulic support belongs to back timber formula hydraulic support, in the ordinary course of things, the fluid pressure line that does not link to each other with the chassis, pillar 8 with move frame cylinder 12 and also all be not afraid of big gun and collapse, adopt so can be used for big gun.
Fig. 3 has provided the front view of second kind of embodiment, the ingredient of support and first kind of embodiment are basic identical, different only is wherein, and the back timber leading portion 9 parallel with top board and the back timber back segment 10 of oblique below are what to separate, couple together by pin 26 structures such as releasable connection such as grade between them.Be convenient to transportation like this.
Fig. 4 has provided the vertical view of the third embodiment, the ingredient of support and first kind of embodiment are basic identical, also be that top beam rear end drags on base plate when moving frame, the different combining forms that just back timber has been divided into a girder 1 and several auxiliary girders 28, can couple together with connectors such as hinge 26 and connecting rods 27 between girder 1 and the auxiliary girder 28, also can be only with connecting rod 27 or only couple together with hinge 26.
Fig. 5 has provided the front view of the 4th kind of embodiment, and the ingredient of support and first kind of embodiment are basic identical.Also be that drag on base plate back timber 1 rear end when moving frame, different just by adjacent frame to moved device that support leading portion 9 provides support by the guide rail slide block mechanism be transformed into can be along the slip of 31 front and back of the guide rail back timber leading portion 9 below set a roof beam in place 30 with back timber 1 vertical lifting.Lifting sets a roof beam in place 30 can join end to end and traverse below in several set caps, the below that also can traverse the set cap of entire working surface in case of necessity.
Fig. 6 has provided the vertical view of the 5th kind of embodiment, the ingredient and the aforementioned structure of support are basic identical, also be that drag on base plate back timber 1 rear end when moving frame, between the forward part 9 of different just back timbers and the back timber rear section 10 by longitudinally spools 32 and bearing bracket stand 33 link up.Work as top board and base plate like this and can not make back timber avoid bearing excessive moment of torsion at ordinary times, thus weight reduction.
When the top board of work plane not at ordinary times, the connector 16 in the previous embodiment should be able to be regulated length.The method of reconciling length is very simple, for example in the be articulated and connected place of part 16 of back timber, goes up at various height and does several holes more, and the length when connector just cuts with scissors when the hole of bottom than hinged superincumbent hole is longer.Certainly regulate the scheme of length and can also conversion go out a variety ofly, give also other variation in addition of device that the back timber front end provides support, back timber leading portion 9 and back segment 10 also can limpen.These simple transformation also fall among the protection of the present invention.
Claims (8)
1. hydraulic support that is used for coal-face roof timbering under the coal mine, comprise back timber, prop up the hydraulic prop below back timber, the chassis that links to each other with the hydraulic prop lower end, preceding beam and preceding beam oil cylinder, move the frame oil cylinder, it is characterized in that: the back timber of the bending that the main part of leading portion is parallel with top board, back segment is downward-sloping drags on base plate moving under the frame state its rear end, and its leading portion serves as to rely on to front slide with adjacent stent back timber leading portion.
2. hydraulic support as claimed in claim 1, it is characterized in that crooked back timber the leading portion parallel with top board and downward-sloping up to back segment that base plate contacts between be linked to be an integral body.
3. hydraulic support as claimed in claim 1 is characterized in that fitting together by releasable connections such as hinges between its leading portion of crooked back timber and the back segment.
4. hydraulic support as claimed in claim 1, it is characterized in that between its leading portion parallel of crooked back timber and the downward-sloping back segment with top board by one longitudinally axle link together.
5. hydraulic support as claimed in claim 1 is characterized in that crooked back timber is bolted together by linkages such as hinge, connecting rods by girder part and several auxiliary girders.
6. hydraulic support as claimed in claim 1, it is characterized in that to crooked back timber leading portion provide support by the guide rail that is located at back timber leading portion one side be connected guide rail slide block mechanism and the connector thereof that the slide block on the adjacent back timber leading portion correspondence position is formed.
7. hydraulic support as claimed in claim 1, what it is characterized in that providing support to crooked back timber leading portion is to slide before and after the guide rail below the crooked back timber leading portion, be parallel to top board and perpendicular to back timber and end to end can be through the truss girder of many back timbers belows.
8. hydraulic support as claimed in claim 1 is characterized in that at the length adjustment device that is provided with connector on the back timber or on slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100033823A CN101240709A (en) | 2007-02-06 | 2007-02-06 | Forward slip type hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100033823A CN101240709A (en) | 2007-02-06 | 2007-02-06 | Forward slip type hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101240709A true CN101240709A (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100033823A Pending CN101240709A (en) | 2007-02-06 | 2007-02-06 | Forward slip type hydraulic support |
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| Country | Link |
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| CN (1) | CN101240709A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191945A (en) * | 2010-03-10 | 2011-09-21 | 李泽宇 | Top beam of hydraulic support |
-
2007
- 2007-02-06 CN CNA2007100033823A patent/CN101240709A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191945A (en) * | 2010-03-10 | 2011-09-21 | 李泽宇 | Top beam of hydraulic support |
| CN102191945B (en) * | 2010-03-10 | 2014-12-31 | 李泽宇 | Top beam of hydraulic support |
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Open date: 20080813 |