CN1067479A - A kind of hydraulic prop for moving suspended top beam - Google Patents
A kind of hydraulic prop for moving suspended top beam Download PDFInfo
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- CN1067479A CN1067479A CN 91103579 CN91103579A CN1067479A CN 1067479 A CN1067479 A CN 1067479A CN 91103579 CN91103579 CN 91103579 CN 91103579 A CN91103579 A CN 91103579A CN 1067479 A CN1067479 A CN 1067479A
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- girder
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Abstract
The present invention relates to the improvement of stope support apparatus under a kind of coal mine.Its major technique is characterised in that every pack support all has three back timbers, and hinge has two synchronization actions propelling oil cylinder of moving one's steps, and also links flexible quadric chain between the back timber.The anti-skid performance height of this support, stronger for roof cracking, stope compliance that base plate is soft, result of use is also fine in the stope of severe inclined thick coal seam.
Description
The present invention relates to the improvement of stope support apparatus under a kind of coal mine, be specially adapted to use in the stope of breaking roof and severe inclined thick coal seam.
" hydraulic prop for moving suspended top beam " that proposed in CN881042291,9 patent documentations mainly is made up of left and right back timber, column, and its left and right back timber connects by two groups of flexible (elasticity) quadric chains, advances oil cylinder to be installed on the back timber.Because the support moving device and the hookup mechanism between the left and right support body of this support are installed between two back timbers, be positioned at support top, so the base plate injustice can't hinder when moving frame, how float coal also buries incessantly, and the obviously this support of realizing that half off-load moves frame has obvious advantage than frame.
But there is the downslide problem in the slippage type support by two back timbers are formed when being used for large inclination working surface, and when being used for the softer work plane of base plate, it is not enough sometimes to carry leg strength.
The objective of the invention is to overcome the prior art deficiency and propose a kind of hydraulic support, every pack support has three back timbers, and adopts elasticity four to connect mechanism between the back timber, has improved the anti-down anti-skid bracket performance, is more suitable for roof cracking, the soft working face extraction of base plate.
The major technique measure that the present invention taked is: every pack support of this hydraulic support all has girder, Zuo Fuliang, right three back timbers of beam of paying; The girder of every pack support and right pay between the beam and girder and rightly pay between the beam oil cylinder of taking a step to advance that equal hinge knots can synchronization action, this makes by existing hydraulic control system and takes a step to advance oil cylinder to realize synchronization action certainly; All linking two groups of elasticity quadric chains between the girder of every pack support and the Zuo Fuliang and between girder and the right pair beam.
Elasticity quadric chain of the present invention is by four guide rods for every group, link to each other with four guide rods respectively and be fixed on ear seat on adjacent two back timbers, and can form along guide rod slip and two elastic links up and down that link to each other, and each elastic link is fitted in together by spring and sliding sleeve by connecting rod.
The technology used in the present invention measure also includes: every group of elasticity quadric chain of this hydraulic support is by two connecting rods up and down, two sliding sleeves, four guide rods up and down up and down, eight ear seats up and down, and two springs up and down, two nuts are formed up and down, each guide rod links to each other with the ear seat that is fixed on back timber one side, one end of connecting rod and sliding sleeve is slidingly connected with respective guide rod respectively, and the other end of connecting rod and sliding sleeve then press-fits with nut by spring and links to each other.
Two groups of elasticity quadric chains among the present invention are connected together by coupling chain; The opposite face of the upper and lower strut in every group of elasticity quadric chain is made corresponding male and fomale(M﹠F), so that play position-limiting action; Guide rod in the elasticity quadric chain is cylindrical rod member, can be divided into two sections of front and back, 250～650 millimeters every section; The taking a step between girder and the right pair beam that reach between the girder of every pack support and the Zuo Fuliang advances oil cylinder all to be connected by the ball pivot on the back timber base plate, the end that sliding sleeve links to each other with connecting rod can be shaped on stage or install stop collar additional, so that limit the amount of radially wobbling of back timber by the decrement of restraining spring.
The mentioned walking type hydraulic supports of the present invention is compared with the suspension device in the prior art, has following technique effect:
1,, when moving frame, can there be two beams to support because three back timbers of employing are one group rack form, improved the performance of anti-down anti-skid bracket, and improved the supporting intensity and the supporting area of support, thereby made support more be applicable to roof cracking, base plate is soft with the high inclination-angle inclined cut.
2, the guide rail of this support slippage is short, and the rigidity height is simple in structure, can make back timber reduce length, the distance of face roof under control when having dwindled supporting.
3, step type advances oil cylinder to be connected on the base plate of adjacent back timber with the ball pivot form, and the back timber of being more convenient for adapts to ceiling not and the requirement doing to swing, has also improved the intensity of support.
In a word, this supporting structure is simple, easy to operate, and is safe and reliable, the distance of face roof under control is little, has anti-skidding anti-down property, is specially adapted to use in the stope of breaking roof and inclined seam, certainly can be used for machine and adopt, big gun is adopted, the stope of full-seam mining and horizontal slice caving coal.
Description of drawings of the present invention is as follows
Fig. 1 walking type hydraulic supports vertical view
Fig. 2 walking type hydraulic supports lateral view
Fig. 3 elasticity quadric chain structure chart
Fig. 4 elasticity quadric chain cut-away view
Existing embodiments of the present invention are described with reference to the accompanying drawings are as follows:
With reference to Fig. 1, Fig. 2, embodiments of the invention mainly are configured with girder 3, beam 2 is paid on a left side, the right beam 4 of paying, two hydraulic vertical props 1 are all arranged under each back timber, girder 3 and a left side is paid between the beam 2 and girder 3 and right pay 4 on a beam and all linking before, the two groups of elasticity quadric chains 6 in back, simultaneously at girder 3 with a left side is paid between the beam 2 and girder 3 and the right hinge of paying between the beam 4 all are knotted one and take a step to advance oil cylinder 5, take a step to advance oil cylinder 5 in a horizontal plane, to tilt to place, tie on the base plate of each back timber by the ball pivot hinge, and the synchronous hydraulic loop in prior art makes these two to take a step to advance oil cylinder 5 to realize synchronization action.
Every group of elasticity quadric chain with reference to Fig. 3, this support of Fig. 4 has two connecting rods 10 up and down, two sliding sleeves 11 up and down, one end of connecting rod 10 and an end of sliding sleeve 11 are by spring 12, nut 15 is compressed together, become elastic link up and down, the other end of connecting rod 10 and sliding sleeve 11 all has through hole, four garden cylindricality guide rods 9 penetrate through hole up and down, fixedly connected on the back timber side plate by the ear seat 7,8 that is distributed in girder 3, Zuo Fuliang or the right pair relative side of beam, make elastic link on guide rod 9, to slidably reciprocate like this.
Before and after two groups of elasticity quadric chains link up with connecting hinge 13, upper and lower strut is for being with the rod member of quarter bend, its long right-angle side section corresponding and make male and fomale(M﹠F), the gap is left in the centre, can limit the distance of moving on the back timber or float downward, and plays position-limiting action.Sliding sleeve 11 is equipped with stop collar 15, with the decrement of restraining spring 12.
Can also see that from Fig. 3 guide rod 9 is divided into two sections of front and back, 300 millimeters every section, be installed on the back timber side plate guide rod 9 arranged in co-axial alignment before and after will making certainly by ear seat 7,8.
Existing accompanying drawings embodiments of the invention sequence of movement: when this walking type hydraulic supports need move forward, beam 2 is paid on a left side, the right preceding beam of paying roof beam structure 4 stretches out the immediate support top board, column 1 off-load below the girder 3, and advance oil cylinder fluid injection simultaneously to taking a step by the synchronous hydraulic loop, this moment, beam 2 was paid on a left side, the right beam 4 of paying all is in holding state, taking a step to advance under the effect of oil cylinder 5, make girder 3 reaches, elasticity quadric chain 6 is motionless simultaneously for this, only be to be positioned at front and back guide rod 9 on the girder 3 along connecting rod 10 through hole slippages, when girder 3 is moved one's steps 300 millimeters the time, the ear seat that connecting rod 10 touches girder 3 one sides puts in place, and 6 beginnings of the two groups of elasticity quadric chains in front and back are with girder 3 reaches, be positioned at a left side this moment and pay beam 2, the right sliding sleeve 11 of beam one side of paying is along 300 millimeters of 9 slippages of the front and back guide rod in its through hole, touch a left side until sliding sleeve 11 and pay beam, till the ear seat of right pair beam, movable like this 600 millimeters.After displacement put in place, column 1 support girder 3 got final product, and after should leftly paying beam 2, right pair beam 4 off-loads, advances oil cylinder 5 fluid injections to taking a step, and by elasticity quadric chain 6, a left side pair beam 2, the right beam 4 of paying was moved forward 600 millimeters, and its sequence of movement is the same.
If guide rod 9 is lengthened to 600 millimeters, advancing the stroke of oil cylinder 5 is 1.2 meters, and simultaneously with girder 3, Zuo Fuliang, the right length appropriateness lengthening of paying beam, and other structures are constant, and the step pitch of this support also can reach 1,2 meter.
Claims (8)
1, a kind of hydraulic support of being made up of back timber, column, propelling oil cylinder, elasticity four connecting rod coupling arrangements is characterized in that:
A, every pack support all have girder 3, a left side to pay beam 2, right 4 three back timbers of beam of paying,
But all cut with scissors the oil cylinder 5 of taking a step to advance that is knotted synchronization action between the girder of b, every pack support and a left side pair beam 2 and between girder 3 and the right pair beam 4.
All linking two groups of elasticity quadric chains 6 between the girder 3 of c, every pack support and a left side pair beam 2 and between girder 3 and the right pair beam 4.
2, according to the said hydraulic support of claim 1, it is characterized in that it is by four guide rods 9 that every group of elasticity four connects mechanism, link to each other with four guide rods 9 respectively and be fixed on the ear seat 7,8 on adjacent two back timbers and can slide and two elastic links up and down of linking to each other be formed, and each elastic link is fitted in together by spring 12 and sliding sleeve 11 by connecting rod 10 along guide rod 9.
3, according to claim 1,2 said hydraulic supports, it is characterized in that every group of elasticity quadric chain 6 by two connecting rods 10 up and down, up and down two sliding sleeves 11, up and down four guide rods, up and down before and after eight ear seats 7,8 and up and down two springs 12, two spiral shell 14 caps are formed up and down, each guide rod 9 is linked to each other by the ear seat 7,8 that is fixed on back timber one side, one end of connecting rod 10 and sliding sleeve 11 is slidingly connected with respective guide rod 9 respectively, and the other end of connecting rod 10 and sliding sleeve 11 then press-fits with nut 14 by spring 12 and links to each other.
4,, it is characterized in that two groups of elasticity quadric chains 6 are linked to each other by coupling chain 13 according to claim 1,2 said hydraulic supports.
5,, it is characterized in that the male and fomale(M﹠F) of making a corresponding position-limiting action relatively of every group of upper and lower strut 10 in the elasticity quadric chain 6 according to the said hydraulic support of claim 3.
6, according to claim 1,2 said hydraulic supports, it is characterized in that the guide rod 9 in the elasticity quadric chain 6 is garden cylindricality rod member, can be divided into two sections of front and back, 250～750 millimeters every section,
7,, it is characterized in that the girder 3 of every pack support and a left side is paid between the beam 2 and girder 3 and rightly pay taking a step between the beam 4 and advance oil cylinder 5 all to be connected by the ball pivot on its back timber base plate according to claim 1,2 said hydraulic supports.
8,, it is characterized in that the end that sliding sleeve 11 links to each other with connecting rod 10 can be shaped on stage or install restriction cover 15 additional according to the said hydraulic support of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103579 CN1067479A (en) | 1991-06-01 | 1991-06-01 | A kind of hydraulic prop for moving suspended top beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103579 CN1067479A (en) | 1991-06-01 | 1991-06-01 | A kind of hydraulic prop for moving suspended top beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1067479A true CN1067479A (en) | 1992-12-30 |
Family
ID=4906153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103579 Pending CN1067479A (en) | 1991-06-01 | 1991-06-01 | A kind of hydraulic prop for moving suspended top beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1067479A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042761C (en) * | 1995-09-11 | 1999-03-31 | 北京矿务局液压支架总厂 | Hydraulic support for high-dipping stope face |
| CN100404789C (en) * | 2004-12-06 | 2008-07-23 | 煤炭科学研究总院太原分院 | Suspending movable hydraulic support rack for advanced support in coal cutting roadway |
| CN101906984A (en) * | 2010-08-02 | 2010-12-08 | 北京诚田恒业煤矿设备有限公司 | Landing beam sliding hydraulic support system for coal mine |
| CN101906983B (en) * | 2009-06-05 | 2013-06-12 | 李薇薇 | Tilting prevention device for fully mechanized mining hydraulic support |
-
1991
- 1991-06-01 CN CN 91103579 patent/CN1067479A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042761C (en) * | 1995-09-11 | 1999-03-31 | 北京矿务局液压支架总厂 | Hydraulic support for high-dipping stope face |
| CN100404789C (en) * | 2004-12-06 | 2008-07-23 | 煤炭科学研究总院太原分院 | Suspending movable hydraulic support rack for advanced support in coal cutting roadway |
| CN101906983B (en) * | 2009-06-05 | 2013-06-12 | 李薇薇 | Tilting prevention device for fully mechanized mining hydraulic support |
| CN101906984A (en) * | 2010-08-02 | 2010-12-08 | 北京诚田恒业煤矿设备有限公司 | Landing beam sliding hydraulic support system for coal mine |
| CN101906984B (en) * | 2010-08-02 | 2012-05-02 | 北京诚田恒业煤矿设备有限公司 | Landing beam sliding hydraulic support system for coal mine |
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| WD01 | Invention patent application deemed withdrawn after publication |