CN2818779Y - Hung-chain hydraulic stand - Google Patents
Hung-chain hydraulic stand Download PDFInfo
- Publication number
- CN2818779Y CN2818779Y CN 200520019152 CN200520019152U CN2818779Y CN 2818779 Y CN2818779 Y CN 2818779Y CN 200520019152 CN200520019152 CN 200520019152 CN 200520019152 U CN200520019152 U CN 200520019152U CN 2818779 Y CN2818779 Y CN 2818779Y
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- Prior art keywords
- back timber
- stand
- hinged
- hydraulic
- chain
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- Expired - Fee Related
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Abstract
The utility model discloses a hung-chain hydraulic stand used for supporting a top plate of a coal mining surface under a coal mine. The hung-chain hydraulic stand comprises an integral type top beam 1, hydraulic props 8 which down sag from the top beam 1, a forward protrusion beam, a forward protrusion beam oil cylinder 5, an upper dirt blocking device 9 hinged behind the top beam 1 and a lower dirt blocking device 25 connected with the hydraulic props 8 at a back row. The utility model is characterized in that the hung-chain hydraulic stand can slide along the side edge of the entire top beam 1, and sliding parts 13, 23 connected to with stand moving cylinders are at least provided with one flexible part connected with the sliding parts, e. g. a chain or a steel cable, etc. The other end of the flexible part is connected with the adjacent hydraulic stand. The hung-chain hydraulic stands are densely arranged into a row in transverse direction when the working surface is in use. When the stand is moved, the unloading stand hung on the flexible part 16, e. g. the chain, etc., is pushed by the stand moving cylinders 12 to move forward. By the control of the expansion and contraction of the stand moving cylinders 12 at both sides of the top beam of every stand, the stands can be handily and quickly moved, and the forward pushing direction of the stand can be controlled, particularly, the utility model has strong adaptability for uneven top plates.
Description
Technical field
The utility model relates to a kind of light-duty back timber formula hydraulic support that is used for 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 marginal a kind of back timber formula hydraulic support.Its background technology 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 back timber all is 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.Linkage between two back timbers in every support of above-mentioned in addition support all is made up of connecting rod slider mechanism or connecting rod guide-bar mechanism, distance between their two back timbers is all fixed, so uncontrollable direction in the process of pushing ahead, deflection all can take place in the direction of every propelling one segment distance support, therefore need regularly to stop production and transfer frame, influence output, and also dangerous when transferring frame.A kind of steering hydraulic support (Chinese patent application number 98101279.5) is arranged in addition.Its form of structure is that every pack support is made up of two narrower back timbers arranged side by side.This support can be adjusted the direction that back timber is pushed ahead with manpower by lever, safety also takes a turn for the better to some extent when transferring frame, but transfer direction by manpower because be, labour intensity is big, sometimes also transfer motionlessly, have to spur back timber, can take the production time so again with lifting gears such as chain slings, influence output, this support caving of this external application coal also must be tied up the top net.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, 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 since the back timber of this class support and its below run through lifting of entire working surface certain annexation of setting a roof beam in place, limited certain back timber amplitude of rising separately, so relatively poor to the adaptive capacity of ceiling not.In addition and since lift this support of the restriction of setting a roof beam in place can not lean on the fluid power controlling party to, so every propelling one segment distance needs special holder orientation and the adjustment rack spacing adjusted, influence output.
Certainly fully mechanized mining supporter can not tied up top net caving coal, but fully mechanized mining supporter weighs tens tons, costs an arm and a leg, tight to the geology conditional request, the down-hole carrying is inconvenient, and general colliery is with not rising, especially fully mechanized mining supporter can only be used for machine and adopts, and can not be used for big gun and adopt, and institute so that apply is restricted.
The utility model content
The purpose of this utility model provides a chain suspension type hydraulic support, when utilizing this chain suspension type hydraulic support supporting roof, can in progradation, regulate direction laborsaving, quickly, to the ceiling adaptive capacity is not strong, the weight ratio fully mechanized mining supporter is light, can not tie up caving coal under the situation of netting on the top again, and can be used for blast mining face.In order to address the above problem, the utility model chain suspension type hydraulic support comprises integral top beam, hydraulic prop from the vertical below of back timber, preceding beam and preceding beam oil cylinder, be hinged on going up of top beam rear end and keep off the cash device, the lower waster rock blocking device of pressing pillar to connect together with the back discharge opeing, the sliding part that on the guide rail of back timber, slides, it is characterized in that and to slide along the side of integral top beam, and having at least a flexible piece to be attached thereto on the joining sliding part of frame cylinder with moving by connector, the other end of flexible piece is connected with adjacent chain suspension type hydraulic support.
Chain suspension type hydraulic support as previously described, described flexible piece be with chain or (with) wire rope or (with) thin and long units made of several end to end short connecting rods.
Chain suspension type hydraulic support as previously described, described move frame cylinder one end and back timber hinged, the other end and sliding part are hinged, sliding part is connected with force transmission element on being connected adjacent frame back timber.The end and the back timber that move the frame cylinder in another embodiment are hinged, the other end directly be connected adjacent frame back timber on force transmission element be connected.Can also be that to move an end and the back timber of frame cylinder hinged, the other end directly be hinged on the back timber of adjacent frame.
Chain suspension type hydraulic support as previously described is being provided with several adjustment holes that can regulate flexible piece length on the back timber or on sliding part.
Chain suspension type hydraulic support as previously described, described force transmission element are elongated connecting rods, also can be to be hinged on fork that can swing up and down on the adjacent frame back timber or the slide block that can slide up and down along the perpendicular guide rail of adjacent frame back timber side.
After adopting such structure, just can be by controlling the flexible of every back timber two sidesway frame cylinders, laborsaving, move frame quickly, but and the control bracket direction of pushing ahead, the big problem of labour intensity when having overcome steering hydraulic support and stirring the vertical pendulum bar and carry out tuning with lever by manpower.When being pushed down by the spoil of inbreak above the back timber, by move the huge strength of frame cylinder can push away moving pre-beam, holding time was long when thereby the method that has solved cantilever support, block form support, steering-type support, lift-moving type hydraulic support etc. and need sometimes to hang with other lifting gear pulling back timbers such as chain sling was transferred frame, influenced the problem of coal production.Owing to move among the crack that the frame cylinder places adjacent two set caps,, adopt so can be used for big gun so be difficult for crumbling when blowing out.All used the structure that connects to all movable flexible pieces such as chain freely of all directions between each back timber of the utility model chain suspension type hydraulic support, so not only transfer frame laborsaving, and the up and down scope of any one back timber is all bigger, therefore is best suited for the not supporting of ceiling.
Because chain suspension type hydraulic support has adopted the monolithic back timber, back timber is wide, the frame spacing is little, band retaining cash device again, 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 front view of first kind of embodiment of the utility model chain suspension type hydraulic support.
Fig. 2 is the vertical view of first kind of embodiment of the utility model chain suspension type hydraulic support under user mode.
Fig. 3 enlarged drawing that to be first kind of embodiment medium chain of the utility model chain suspension type hydraulic support be connected with slide block with back timber and chain.
Fig. 4 is the vertical view of second kind of embodiment of the utility model chain suspension type hydraulic support.
The specific embodiment
In conjunction with Fig. 1 and Fig. 3, first kind of embodiment of the utility model chain suspension type hydraulic support comprises integral top beam 1; Can be along the sliding part 13 and the sliding part 23 of lower guideway on the back timber 1 22 and upper rail 24 slips; One end is hinged by pin 17 and back timber 2, the other end by pin 15 respectively with back timber 3 on sliding part 13 and two hinged chains 16 of sliding part 23; Hydraulic prop 8 from the vertical below of back timber; Piston rod is hinged by pin 11 and back timber 3 rear ends, and an end of cylinder body is hinged by pin 18 and sliding part 23, the propulsion cylinder 12 of the other end of cylinder body by being connected with the sliding part 13 of being with corresponding recesses 27 with flange 26 that cylinder body fuses; 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 2 front ends; Keep off cash device 9 by hinged the going up of pin 10 and top beam rear end; The lower waster rock blocking device 25 that connects together with the pillar 8 of back; Before beam oil cylinder 7 and by the hinged preceding beam 5 of pin 6.
Below in conjunction with Fig. 1,2, the sequence of movement of 3 explanation chain suspension type hydraulic supports of the present utility model when mining face under mine uses; Described chain suspension 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 descends, this moment pre-beam 3 the left side by being suspended on the back timber of adjacent supports 2 with it with hinged two chains 16 of sliding part 13 and sliding part 23, its right side is suspended on the back timber 4 adjacent with the right side by two other chain 16, and the suspention height can be adjusted by selecting different hinge hole 30.The piston rod of the passing frame cylinder 12 in support 3 left sides shrinks at this moment, spurs 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.8 on pillars after direction mixes up below the supporting top beam 3 have been finished and have been moved frame and tuning operation.
Move in the frame operating process aforementioned, support 3 is that 4 chains 16 that are connected on the adjacent frame support 4 of the adjacent frame support 2 in the left side and the right are suspended in the air, so support 3 can be effortlessly left and right sides all directions adjusting position forwards, backwards, also can move the flexible of frame cylinder 12 by control bracket 3 left sides and support 4 left sides two, support 3 is turned to the left or to the right quickly.Because moving the frame cylinder has enough big power, so even pushed down also and can turn to efficiently by the spoil of inbreak on the back timber of support 3.Because whole operation is very easy to be laborsaving, thus whenever move a step in passing tuning once, thereby avoided every the stopping production with regard to needs after a while to transfer the problem of frame so it is neat to remain the formation of entire working surface support.Pillar 8 also can not exclusively be mentioned when moving frame certainly, and can be as cantilever support sliding advance of support.
When needs caving coal, mention the rear pillar 8 of a band lower waster rock blocking device 25, just equal to have opened a coal discharge outlet, when supporting strut 8 again, coal discharge outlet just is plugged, and puts coal and finishes.
Because chain suspension type hydraulic support belongs to back timber formula hydraulic support, in the ordinary course of things, not having must be along the whole chassis and the fluid pressure line that links to each other with the chassis that base plate slides, 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. 4 has provided the vertical view of second kind of embodiment of the utility model, wherein the left end of force transmission element 28 can slide up and down along the perpendicular guide rail on the adjacent frame back timber side, right-hand member injects in the cavity of slide block 23, is provided with the confined planes that can prevent that force transmission element 28 from deviating from from the cavity of slide block 23 on slide block 23 and force transmission element 28.Carry out spacing back like this and just can save this root flexible piece 16 that is connected with slide block 23 in first kind of embodiment, flexible piece 16 can certainly be installed, play safety effect.
Certainly, force transmission element 20 also has other variations, for example as hydraulic prop for moving suspended top beam, with waving hinge seat as force transmission element; Hinged the force transmission element among Fig. 2 20 with the rear end of adjacent frame back timber; And the front and back end of adjacent frame back timber all variation such as is coupled together with sliding part 23 with chain, all drop in protection scope of the present invention.
Put the cart before the horse moving the frame cylinder in addition; Sliding part 13 and sliding part 23 fused becomes a sliding part, and adds connectors such as connecting rod in addition two sliding parts are coupled together etc., and these simple transformation also fall among the protection of the present utility model.
Claims (9)
1. chain suspension type hydraulic support that is used for coal-face roof timbering under the coal mine, comprise the monolithic back timber, hydraulic prop from the vertical below of back timber, preceding beam and preceding beam oil cylinder, be hinged on going up of top beam rear end and keep off the cash device,, it is characterized in that and to slide along the guide rail of integral top beam side with the lower waster rock blocking device that the back discharge opeing presses pillar to connect together, and having at least a flexible piece to be attached thereto on the joining sliding part of frame cylinder with moving, the other end of flexible piece is connected with adjacent hydraulic support.
2. hydraulic support as claimed in claim 1 is characterized in that described flexible piece is with chain and or wire rope and or the thin and long units made of several end to end connecting rod.
3. hydraulic support as claimed in claim 1, the end and the back timber that it is characterized in that moving the frame cylinder are hinged, and the other end and sliding part are hinged, and sliding part is connected with force transmission element on being connected adjacent frame back timber.
4. hydraulic support as claimed in claim 1, the end and the back timber that it is characterized in that moving the frame cylinder are hinged, the other end directly be connected adjacent frame back timber on force transmission element be connected.
5. hydraulic support as claimed in claim 1, the end and the back timber that it is characterized in that moving the frame cylinder are hinged, and the other end directly is hinged on the back timber of adjacent frame.
6. hydraulic support as claimed in claim 1 is characterized in that on back timber, or is provided with several flexible piece length-adjustment holes on sliding part.
7. as claim 3 or 4 described hydraulic supports, it is characterized in that described force transmission element is elongated connecting rod.
8. as claim 3 or 4 described hydraulic supports, it is characterized in that described force transmission element is to be hinged on the fork that can swing up and down on the adjacent frame back timber.
9. as claim 3 or 4 described hydraulic supports, it is characterized in that described force transmission element is the slide block that can slide up and down along the perpendicular guide rail of adjacent frame back timber side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019152 CN2818779Y (en) | 2005-05-18 | 2005-05-18 | Hung-chain hydraulic stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520019152 CN2818779Y (en) | 2005-05-18 | 2005-05-18 | Hung-chain hydraulic stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818779Y true CN2818779Y (en) | 2006-09-20 |
Family
ID=37004833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520019152 Expired - Fee Related CN2818779Y (en) | 2005-05-18 | 2005-05-18 | Hung-chain hydraulic stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818779Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009089769A1 (en) * | 2008-01-10 | 2009-07-23 | Zeyu Li | A light-duty hydraulic bracket |
| CN101476471B (en) * | 2008-01-02 | 2011-07-06 | 李泽宇 | Integral top beam |
| CN103174447A (en) * | 2011-12-20 | 2013-06-26 | 李薇薇 | Supports |
-
2005
- 2005-05-18 CN CN 200520019152 patent/CN2818779Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476471B (en) * | 2008-01-02 | 2011-07-06 | 李泽宇 | Integral top beam |
| WO2009089769A1 (en) * | 2008-01-10 | 2009-07-23 | Zeyu Li | A light-duty hydraulic bracket |
| CN103174447A (en) * | 2011-12-20 | 2013-06-26 | 李薇薇 | Supports |
| CN103174447B (en) * | 2011-12-20 | 2016-06-15 | 李薇薇 | A kind of support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060920 Termination date: 20100518 |