CN1170052C - Top protecting support - Google Patents
Top protecting support Download PDFInfo
- Publication number
- CN1170052C CN1170052C CNB021006741A CN02100674A CN1170052C CN 1170052 C CN1170052 C CN 1170052C CN B021006741 A CNB021006741 A CN B021006741A CN 02100674 A CN02100674 A CN 02100674A CN 1170052 C CN1170052 C CN 1170052C
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- China
- Prior art keywords
- support
- jack
- back timber
- guide peg
- top protecting
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- Expired - Fee Related
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Abstract
The present invention relates to a top-base type top protecting support for the comprehensive mining working surface of a coal mine. A wide rigid integral top beam (1) is used; 4 to 6 hydraulic upright posts (2) are suspended under the wide rigid integral top beam (1); a combined base and a jack (3) for pushing a conveyor are arranged at the bottom of the posts; guide rods (4) and movable jacks (5) are arranged between supports; a support distance maintaining and regulating device (6) is arranged under the beam; four position raising jacks (14) are arranged at four angles at the lower part of the top beam for realizing the quick support moving of the working surface with load. The present invention has the advantages of four bar linkage mechanism cancellation, obvious decrease of the weight and the manufacturing cost of the support and improvement of supporting performance to a top plate.
Description
Technical field
The present invention relates to the support apparatus hydraulic support of fully-mechanized mining working under the coal mine.
Background technology
At present, the hydraulic support that fully-mechanized mining working is used all is the base formula basically, and promptly the base of duration of work support does not break away from base plate, the falling frame, move frame and support of support all based on base plate, and also the overwhelming majority is expanded letter four connecting rod machine mechanism hydraulic supports.The carriage center of standard adopts board-like rigid unitary or articulated roof beam, rigidity or semi-rigid base apart from being 1.5mm.This class support will bear the huge scissors between the work plane roof and floor during operation, and back timber is relative and the various moments of flexure and the moment of torsion of base, and requirement of strength is very high.Therefore weight support frame is heavy, and the cost height is the high main cause of fully-mechanized mining equipment initial investment.
The unloading of support is moved and is supported based on top board, also promptly based on the basic cribbing there be limited evidence currently of use in top of the back timber of adjacent stent.And be the sectional shelf-unit of narrow back timber.Generally be hydraulic vertical prop, guide rail or the guiding device that hangs by strip back timber, its underpart and pass jack and combine, about or former and later two unit be one group support.As slipping bar compos ite support.Two unit fulcrum, alternately reaches each other.There is not structural linking between group and the group.This support stability is poor, and translational speed is slow, alternate unloading, and it is bad to protect the top effect.
Summary of the invention
The purpose of this invention is to provide a kind of support stabilizing mechanisms such as four connecting rods, top protecting support that supporting structure and force-bearing situation are simplified greatly of not adopting.
The present invention also aims to provide a kind of effective support that makes face roof be subjected to wide formula rigidity back timber, and can realize that fast speed belt carries mobile top base formula top protecting support.
Description of drawings
Fig. 1 is the top protecting support outline drawing.
Fig. 2 is support guiding and push unit---bushing type guide peg and passing jack arrangement diagram.
The two-way shelf of Fig. 3 force piece moves schematic diagram.
Fig. 4 is pipe (bar) formula guide peg (dead band is preceding), slide block and passing jack arrangement diagram.
Fig. 5 is the two-way spacing maintenance of support and adjusting device and bushing type guide peg, pass jack arranges schematic diagram.
Fig. 6 is set spacing maintenance and adjusting device and pipe (bar) formula guide peg, pass jack arranges schematic diagram.
Hydraulic vertical prop hang side schematic view under Fig. 7 set cap.(a) medium-thickness seam top protecting support, (b) high seam top protecting support, (c) simple and easy top protecting support, (d) light-duty top protecting support, (e) thin and medium-thickness seam " V " type top protecting support, (f) " X " type girdle top protecting support.
The specific embodiment
1, adopt expanded letter to push up basic cribbing structure.Promptly adopt width than carriage center apart from (reference center distance is 1.5m), smaller board-like rigidity back timber 1, back timber length according to three machines supporting and control top needs determine that back timber vertically divides two row's distributions to be hung with 4 to 6 hydraulic vertical props 2 with hinge method along support down; Hydraulic vertical prop bottom is established combined footing and is pushed away conveyer jack 3 with base is connected with conveyer; Old man's side at back timber is established waste rock board 13.Guiding push unit with both sides when support moves frame is a support, adopts and lifts the base reach.
Be used for medium stable top protecting support, can adopt the integral rigidity back timber or the front and back articulated roof beam of no active side backplate with upper plate; Can adopt the integral rigidity back timber or the articulated roof beam of one-sided or bilateral activity side guard board for medium top protecting support stable or unstable roof.The active side backplate is established spring strut and is regained jack.
Hydraulic vertical prop 2 epicoeles are established hydraulic control one-way valve, and cavity of resorption is established hydraulic control one-way valve and safety valve, need column to be inverted as structure.
2, the top protecting support of full face routinely the longwall full-mechanized mining technique work plane arranging between the crossheading up and down, set spacing meets the requirement of design centre distance.
3, between every support, position height is provided with the guiding push unit below back timber, and guide peg 4 is passed jack 5 following last, and a cover guiding push unit is respectively two adjacent support services.Move the different of frame direction and order by force piece, three kinds of guiding push units arranged:
(1) the bushing type guide peg is connected with the hydraulic control pin and passes jack, can realize that the two-way order of work plane moves frame.Bushing type guide peg 4 is formed (see figure 2) by the outer tube of interior pipe (bar) and band total length gap, and the front and back ear seat that both sides are connected with interior pipe or outer tube keeps being connected with adjusting device 6 with the front and back two pack support spacings of adjacent two supports respectively.Bottom at outer tube, junction plate by two ends is welded with upright up and down rail, have chute on the piston rod end of passing jack and the cylinder body two ends, piston rod end and cylinder body can slided in the upright rail up and down, piston rod end and cylinder bottom are respectively established a horizontal pin-and-hole (see figure 5).With this pin-and-hole position, last back correspondence, set spacing keep and the adjusting device two ends below be provided with hydraulic control pin 12, can be as required when moving frame be connected with adjacent two front and back hydraulic control pin 12 respectively.When force piece moves frame in proper order, one side of guide peg is for moving support earlier, opposite side moves support after then being, owing to pass jack 5 for often stretching state, insert the cylinder bottom pin-and-hole of passing jack so should move the back hydraulic control pin 12 of support when moving frame earlier, and with after move support preceding hydraulic control pin 12 insert the piston rod pin-and-hole of passing jack.Two side stands for the treatment of guide peg can be regained front and back hydraulic control pin after all finishing and moving the frame action.
(2) pipe (bar) formula guide peg 4, support bilateral symmetry are arranged slide block and are fixedlyed connected passing jack 5.The guide peg both sides have the front and back slide block that is connected with adjusting device with the front and back support spacing maintenance of adjacent two supports respectively.(see figure 3) when work plane adopts two-way shelf move mode, force piece are divided into corner number and odd number frame.If the corner number is for moving support earlier, then the front and back slide block on the corner number both sides guide peg is preceding, the front and back slide block on the guide rod of odd number frame both sides after.Pass jack (see figure 4) when often stretching state, the rear slider 16 that moves support earlier links to each other with cylinder body, after move support front-slider 17 link to each other with piston rod; If the dead band of guide peg is preceding, moves the rear slider 18 of support after then and fix with the rear end of guide peg; If the dead band of guide peg after, then the front end of guide peg is fixed with the front-slider that moves support earlier.
(3) pipe (bar) formula guide peg, support both sides asymmetric arrangement slide block and fixedly connected the passing jack, this mode is suitable for the force piece unidirectional sequence and moves frame, therefore each support two side slides is provided with difference, if the front and back slide block in support left side is preceding, the front and back slide block on the right side of support after, and every support is all like this, and then the frame that moves of work plane is from right to left in proper order.The connected mode of passing jack is with (2).
Allow to pass jack as structure and also can be the state that often contracts, at this moment, connecting mode need be done corresponding change.
3, set spacing keeps and the adjusting position (see figure 5)
The vertical two pack support spacings that one in front and one in back are provided with the back timber longitudinal axis keep and adjusting device 6 below set cap.Form by the expansion link 11 at bearing pin 7, contiguous block 8, combined oil cylinder 10 (the two-way push oil cylinder that cylinder body separates), connecting cylinder 9, two ends and front and back slide block etc.This device is stuck in the vertical chute on both sides below the back timber, and its middle part is had the ear seat of a pair of slotted hole and bearing pin 7 fixing on the back timber.
Guiding between all supports of work plane and push unit keep and adjusting device 6 by the set spacing of each support, and are linked to be an integral body.The spacing holding device of this device generally is after moving frame and putting in place, distance in the operative combination oil cylinder 10 keeps oil cylinder to stretch out, make to keep setting spacing between the guide rail of both sides, guarantee that the back timber of support can move frame smoothly, treat that adjacent stent moves frame and puts in place and unload behind the stretching top board.
Press the quantity branch of combined oil cylinder, two-way spacing maintenance of being called of a combined oil cylinder and adjusting device are respectively arranged on the device both sides; And having only a side that combined oil cylinder is arranged, opposite side is keeping and the adjusting device (see figure 6) for unidirectional spacing of regular length.
Adjusting oil cylinder in the combined oil cylinder 10 is provided with hydraulic control one-way valve at ordinary times for the state that often contracts at rod end chamber, realizes when needs that support is horizontal and uses when mobile.Two combined oil cylinders are arranged, can realize this operation bidirectional modulation; If have only a combined oil cylinder, this carries out the adjusting of a direction only, if will realize the adjusting of other direction, then will carry out neighboring frame-operated by the adjusting oil cylinder of adjacent frame.
4, the position keeps and the back timber lifting apparatus
This device is in 4 raise-position jack 14 before and after the both sides below the back timber, be installed in respectively below the back timber both sides in the middle of the tandem vertical chute, its lower end is fixed on the two ends of set spacing maintenance and adjusting device 6, and the ear seat that top probes into back timber and back timber inside is connected.The upper and lower cavity of jack 14 is provided with hydraulic control one-way valve.When the stent support top board, this jack can keep the high end, position of guide peg and spacing holding device 6; When base was carried in the support unloading, 4 raise-position jack 14 rise back timber 1 simultaneously held top board, and operation passing this moment jack can be realized being with carrying and move frame (seeing Fig. 1, Fig. 5, Fig. 6).
5, conveyer is passed and the support resetting means
This be meant the combined footing that is suspended on the column bottom and connect with combined footing rear portion crossbearer push away conveyer jack 3.This jack is as moving conveyor under the situation of stent support top board, and the passing jack of working with the back timber both sides when support moves frame shrinks simultaneously, but auxiliary stand moves frame and column resets.For first the support at work plane two ends, this jack can cooperate with the passing jack 5 of back timber one side to be finished support and moves along base plate.
What simple top protecting support can not established combined footing and every pushes away the conveyer jack, uses instead the column chassis to be set and to establish a method that pushes away the conveyer jack every many support bottoms, and jack and column root are flexibly connected.For the stability that increases column, prevent to shake heavy curtain, non-rigid connector can be set on the appropriate location between the column, also can adopt column reset jack or resetting means.
Top protecting support compared with prior art of the present invention has following advantage:
1, cancelled the quadric chain of support, make support no longer bear huge scissors between the roof and floor and various moment of flexure, moment of torsion, simplify the structure and the stress of support, the main stressed member of support is greatly reduced, therefore can fundamentally reduce the weight and the cost of support significantly.Thus, can significantly reduce the initial investment of fully-mechanized mining equipment.
2, adopt wide formula template integral rigidity back timber, have the raise-position jack to hold back timber when moving frame, there is the passing jack on the back timber both sides, can realize comparatively ideally carrying quick-footed speed belt and carrying and move frame, keep the integrality of top board, effectively improve the supporting performance to top board.Be particularly conducive to medium stable supporting with lower roof plate.
3, be used for medium stable top protecting support with the upper plate work plane, can not establish the active side backplate, adopt two-way shelf order moving manner, adopt pipe (bar) formula guide peg, support bilateral symmetry to arrange slide block and fixedly connected passing jack mode between the set cap, not only can further accelerate advancing velocity, and help further simplifying supporting structure and reduce cost.
4, every support has the column more than 4 or 4, and the column upper and lower cavity is provided with the hydraulic control blocking device, is provided with combined footing or intercolumniation flexible connecting device, make support itself have certain stability, be convenient to take measures, carry out the whole Transporting and the installation of support, reduce freight and set-up time.
5, support basic structure can be used for the support of other purposes, as sublevel caving hydrau lic support, support with mesh-layingdevice; Establish at the back timber rear portion to put the coal tail boom and to put device for coal and can form and protect top formula sublevel caving hydrau lic support; Establishing the lapping device can form and protect top formula support with mesh-layingdevice in the support bottom.Also can simplify the structure and the force-bearing situation of this class support.
Claims (8)
1, a kind of top protecting support, by back timber (1), hydraulic vertical prop (2), combined footing and push away conveyer jack (3), guide peg (4), pass jack (5), set spacing keeps and adjusting device (6), raise-position jack (14), waste rock board (13) are formed; It is characterized in that: back timber (1) bottom distributes and is hung with 4 to 6 hydraulic vertical props (2), be provided with combined footing in hydraulic vertical prop bottom and push away conveyer jack (3) with base is connected with conveyer, between each support, be provided with the passing jack (5) of guide peg (4) and guide peg bottom, before and after the guide peg (4) with the both sides back timber under one in front and one in back the two pack support spacings maintenance of lateral arrangement link to each other with adjusting device (6), the guiding device between each support of work plane is linked to be an integral body; Being provided with the position between set spacing maintenance and adjusting device two ends and back timber keeps and the back timber lifting apparatus: 4 raise-position jack (14).
2, top protecting support as claimed in claim 1 is characterized in that: the guiding push unit between the support can be that (1) bushing type guide peg is connected the passing jack with the hydraulic control pin; Or (2) pipe (bar) formula guide peg, support bilateral symmetry are arranged slide block and are fixedlyed connected the passing jack; Or (3) pipe (bar) formula guide peg, support both sides asymmetric arrangement slide block with fixedly connected the passing jack.
3, top protecting support as claimed in claim 1 or 2 is characterized in that: set spacing keeps and adjusting device can be that two-way set spacing keeps and adjusting device; Or unidirectional set spacing keeps and adjusting device.
4, top protecting support as claimed in claim 1 is characterized in that: can adopt combined footing and push away the conveyer jack as pushing away conveyer, the auxiliary resetting means that moves frame and hydraulic vertical prop; Perhaps adopt the column chassis and set up a mode that pushes away the conveyer jack every many; Perhaps between column, establish non-rigid connector, adopt column reset jack or resetting means.
5, top protecting support as claimed in claim 1 is characterized in that: can adopt the integral rigidity back timber or the articulated roof beam of no active side backplate, also can adopt the integral rigidity back timber or the articulated roof beam of one-sided or bilateral activity side guard board.
6, top protecting support as claimed in claim 1 is characterized in that: the center to center distance of support is 1.5mm; Also can be 1.25 or 1.75m.
7, top protecting support as claimed in claim 1 is characterized in that: the structure of this support can be used for sublevel caving hydrau lic support and support with mesh-layingdevice: establish at the back timber rear portion and put the coal tail boom and put device for coal, can form and protect top formula sublevel caving hydrau lic support; Perhaps establish the lapping device, can form and protect top formula support with mesh-layingdevice in the support bottom.
8, top protecting support as claimed in claim 1 is characterized in that: hydraulic vertical prop can be inverted suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021006741A CN1170052C (en) | 2002-02-20 | 2002-02-20 | Top protecting support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021006741A CN1170052C (en) | 2002-02-20 | 2002-02-20 | Top protecting support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1364974A CN1364974A (en) | 2002-08-21 |
| CN1170052C true CN1170052C (en) | 2004-10-06 |
Family
ID=4739437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021006741A Expired - Fee Related CN1170052C (en) | 2002-02-20 | 2002-02-20 | Top protecting support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1170052C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439652C (en) * | 2004-04-30 | 2008-12-03 | 兖矿集团有限公司 | Fully-mechanized mining working face smooth trough advancing reinforcement support process and hydraulic support therefor |
| CN102116159B (en) * | 2010-01-05 | 2013-06-12 | 李秋生 | Hydraulic support of suspension roof timber capable of adjusting direction |
| JP2016027326A (en) * | 2014-06-26 | 2016-02-18 | アークレイ株式会社 | Measuring method, measuring apparatus and eluent |
| CN104847390B (en) * | 2015-03-18 | 2017-12-05 | 辽宁工程技术大学 | A kind of block form girder hydraulic support |
| CN105909292A (en) * | 2016-04-12 | 2016-08-31 | 安徽省宿州市龙华机械制造有限公司 | Slide-type top beam mechanism for forepoling and termination point hydraulic support |
| CN105952489A (en) * | 2016-04-12 | 2016-09-21 | 安徽省宿州市龙华机械制造有限公司 | Anti-side-pressure guide rail slip type advancing and end hydraulic support |
-
2002
- 2002-02-20 CN CNB021006741A patent/CN1170052C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1364974A (en) | 2002-08-21 |
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