CN101451439B - Hydraulic support - Google Patents
Hydraulic support Download PDFInfo
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- CN101451439B CN101451439B CN2007101951818A CN200710195181A CN101451439B CN 101451439 B CN101451439 B CN 101451439B CN 2007101951818 A CN2007101951818 A CN 2007101951818A CN 200710195181 A CN200710195181 A CN 200710195181A CN 101451439 B CN101451439 B CN 101451439B
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- back timber
- bottom girder
- oil cylinder
- hydraulic support
- passing oil
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Abstract
The invention discloses a hydraulic bracket for a supporting top plate for an underground coal working surface of a coal mine, which comprises a top beam (1), a bottom beam (9), a pillar (12), a push cylinder (3), a push cylinder (11), a connecting device (2), and a tail beam (14), a waste rock blocking device (6), a connector (10), a connecting rod (17) and a push cylinder (18) which are used according to geological conditions. The hydraulic bracket is characterized in that the top beam (1) is provided with the push cylinder (3) for moving the bracket, and at least one bottom beam (9) in a plurality of adjacent bottom beams is also provided with the push cylinder (11) for moving the bracket and (or) pushing a conveyer. With the adoption of the structure, the bottom beam (9) and the top beam (10) can move forward synchronously through controlling extension of the push cylinder (3) on the top beam (1) and the push cylinder (11), so as to favorably achieve bracket moving by attaching to the top. Therefore, the hydraulic bracket has strong adaptive capability for working surfaces of a soft bottom plate and a crushed top plate.
Description
Technical field
The present invention relates to a kind of 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.Its background technology one is the technology described in the Chinese coal industry " hydraulic prop for sliding mine caps general technical specifications ", and the 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 20042000157.6); Steering hydraulic support (Chinese patent application number 98101279.5).Above-mentioned these supports, all by hydraulic prop, preceding beam is passed oil cylinder, and back timber and linkage etc. are partly formed.Because every hydraulic prop of above-mentioned support all is independent, the bottom girder that the front and back pillar connects together, be not placed in the passing oil cylinder on the bottom girder, so bottom girder, pillar and back timber are moved forward synchronously, can not pass transporter automatically.Also have a class to adopt the hydraulic support of integral top beam, for example band drags the sectional shelf-unit (Chinese patent application number 02100089.1) of beam etc., this a kind of hydraulic support is by the integral top beam of broad, joist, partly form from the pillar of the vertical below of back timber and the frame cylinder etc. of moving that is positioned at support top, be characterized in that back timber by front and back joist holder, carrying leg and moving forward; And for example chain suspension type hydraulic support (Chinese patent application ZL200520019152.2) is also by the integral top beam of broad, partly form from the pillar of the vertical below of back timber and the frame cylinder etc. of moving that is positioned at support top, be characterized in that back timber by chain suspension, carrying leg and moving forward.Since this class support do not have whole bottom girder and be installed in integral bottom girder and transporter between the passing oil cylinder, so can not be as fully mechanized mining supporter automatic passing transporter.Bottom girder, pillar, back timber are moved forward synchronously.Also have a kind of support (Chinese patent application number 02233267.7) of pillar common bed to it is characterized in that two front pillars are connected on the front chassis, two rear pillars are connected on the rear chassis, the chassis separates before and after this support, can not before and after the chassis move forward synchronously, certainly with regard to more can not before and after the problem that moves forward synchronously of chassis and back timber, pillar.
Background technology two is fully mechanized mining supporters.Fully mechanized mining supporter has integral bottom girder, can pass transporter automatically, and back timber, pillar, bottom girder are moved forward synchronously.Its form of structure is that every support is made up of the linkage between back timber, bottom girder, caving shield, pillar and back timber and the bottom girder.Be characterized in passing oil cylinder and be positioned at the support foot, one end (passing through guide rod sometimes) is connected with transporter, and the other end is hinged on the bottom girder of support, can realize passing automatically transporter and move frame automatically by the flexible of oil cylinder.But when moving frame, if roof cracking emits the spoil fallen on the back timber to produce at the top of support and makes the support moment of overturning backward, the phenomenon of frame takes place to fall backward in support easily; If the top board injustice, when bottom girder moved forward, back timber was stuck, owing to be that rigidity is hinged between back timber and the bottom girder, also can produce the moment of overturning backward, thereby the phenomenon of falling the frame takes place.Because the load of entire bracket all is pressed on the bottom girder, when running into soft seat, bottom girder can be absorbed in the base plate, causes moving difficulty in addition.
Summary of the invention
The purpose of this invention is to provide a kind of hydraulic support, when utilizing this a kind of hydraulic support stand top board, bottom girder, each pillar, back timber are moved forward synchronously, even roof cracking is not overturning backward also, can pass transporter automatically again, roof cracking can paste the top and move frame, and the soft bottom girder of mentioning of base plate moves frame.In order to address the above problem, a kind of hydraulic support of the present invention comprises back timber, be connected before and after the bottom girder, hydraulic prop, passing oil cylinder of hydraulic prop lower end and preceding beam, guide rod, connecting rod, tail boom, the retaining cash device that can select for use according to geological conditions, it is characterized in that back timber and bottom girder, hydraulic prop move forward synchronously when moving frame; All adopt between hydraulic prop and back timber and the bottom girder to all movable articulated structure freely of all directions; Be equipped with on the back timber when being used to move the passing oil cylinder of frame, in plurality of adjacent and bottom girder that the front and back post is connected, have at least also be equipped with on the bottom girder be used to move frame and (or) pass the passing oil cylinder of transporter.
One end of the passing oil cylinder of installing on the described back timber or a part are connected with back timber, and the other end is connected with adjacent frame by connector.In another embodiment, an end of the passing oil cylinder of installing on the described back timber or a part are connected with back timber, and the other end is connected with this another back timber by connector.In another embodiment, an end of the passing oil cylinder of installing on the described back timber or a part are connected with back timber, the other end by connector with can be connected along the joist that traverse in many back timbers below of back timber to front slide.The described passing oil cylinder one end of installing on bottom girder is connected with bottom girder, and the other end is connected with preceding transporter by connector and/or another passing oil cylinder one end is connected with bottom girder, and the other end is connected with the back transporter.The passing oil cylinder one end that described hydraulic support is installed on bottom girder is connected with bottom girder, and the other end is connected with transporter by pin, guide rod, connector.Described hydraulic support is hinged on the back timber other end at a bottom girder and an end and drags between the tail boom on the base plate and be connected connecting rod.Described top beam rear end is hinged on the tail boom upper end by pin, and the other end of tail boom drags on base plate.
After adopting such structure, just can be by the passing oil cylinder on every back timber of control flexible, overcome the resistance on the back timber, laborsaving, mobile back timber quickly; By the flexible passing bottom girder and the transporter of the passing oil cylinder on the control bottom girder, it is all nearer from resistance to pass oil cylinder like this, has reduced tilting moment, makes to move the steady safety of frame; And all adopted between hydraulic prop and back timber and the bottom girder to all movable articulated structure freely of all directions, overcome the huge internal force that fully mechanized mining supporter forms between back timber and bottom girder, alleviated the weight of support.Because a kind of hydraulic support of the present invention makes the back timber cribbing easily, can serve as to rely on the unsettled frame that moves with the adjacent frame that is in holding state, mention bottom girder and move forward so when running into soft seat, can also shrink pillar.So a kind of hydraulic support of the present invention is strong to the soft seat adaptive capacity.The back timber of a kind of hydraulic support of the present invention and bottom girder can be respectively reach synchronously under the tending to act of separately passing oil cylinder, move frame so help realizing pasting the top, therefore be best suited for the supporting of breaking roof.
Because a kind of hydraulic support of the present invention has adopted the bottom girder of passing oil cylinder can be installed, can pass transporter automatically, solve slippage class support, modular support, chain suspension type support because of joining push shifter complicated operation and the produce coal problem of time of influence.
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 a kind of hydraulic support of the present invention.
Fig. 2 is the front view of second kind of embodiment of a kind of hydraulic support of the present invention.
Fig. 3 is the front view of a kind of the third embodiment of hydraulic support of the present invention.
Fig. 4 is the front view of the 4th kind of embodiment of a kind of hydraulic support of the present invention.
The specific embodiment
In conjunction with Fig. 1, first kind of embodiment of a kind of hydraulic support of the present invention comprises back timber 1; The bottom girder 9 that front and back post 12 is linked together; Can be along the linkage 2 of slip before and after the guide rail on the back timber 1; One end is connected the upward passing oil cylinder 3 that the other end is connected with adjacent frame by linkage 2 by pin 4 with back timber; The retaining cash device 6 that when needs retaining cash, is connected with top beam rear end by pin 5; The front and back hydraulic prop 12 that the upper end is connected with back timber 1 is connected with bottom girder 9 by pin 8; One end is connected the following passing oil cylinder 11 that the other end is connected with transporter 20 by connector 10 by pin 7 with bottom girder.
Below in conjunction with Fig. 1 the sequence of movement of a kind of hydraulic support of the present invention when mining face under mine uses is described: pass oil cylinder at first down and stretch out, transporter is moved forward, pillar below the back timber 1 12 is received post then, back timber 1 descends, when back timber just leaves top board, go up the passing oil cylinder and stretch out, with passing the oil cylinder synchronous at present, step pitch of whole reach, push away the 2nd then, the rest may be inferred.
When running into soft seat, bottom girder 9 can be absorbed in the base plate.Fully mechanized mining supporter can cause moving difficulty when running into this situation.And the technical measures that a kind of hydraulic support of the present invention is taked are the pillars 12 that contract when moving frame, by linkage 2 weight of whole support is born by the adjacent frame support that is in holding state, so bottom girder 9 is extracted from base plate and by pillar 12 suspention, then pass up and down make under oil cylinder 3 and 11 actings in conjunction back timber and bottom girder synchronously step pitch of reach get final product.
In conjunction with Fig. 2, second kind of embodiment of a kind of hydraulic support of the present invention comprises back timber 1; The joist 13 that traverses many back timber belows that can slide along back timber 1 front and back; One end is connected with back timber by pin 4, the upward passing oil cylinder 3 that the other end is connected with adjacent frame by joist 13 linkages such as grade; The retaining cash device 6 that is connected with top beam rear end by pin 5 is housed when needs retaining cash; Be connected the hydraulic prop 12 between back timber 1 and the bottom girder 9, the bottom girder 9 that is connected with hydraulic prop 12 by pin 8; One end is connected following passing oil cylinder 11 and the preceding beam 23 that the other end is connected with transporter 20 by connector 10 by pin 7 with bottom girder.
Describe second kind of embodiment of a kind of hydraulic support of the present invention in detail below in conjunction with Fig. 2.Sequence of movement when mining face under mine uses is: pass oil cylinder 11 at first down and stretch out, with transporter 20 reaches, going up passing oil cylinder 3 simultaneously stretches out, with joist 13 reaches, pillar below the back timber 1 12 is received post then, back timber 1 descends, and goes up when back timber 1 has just left top board and passes oil cylinder 3 and pass oil cylinder 11 synchronous down, and whole support pasting step pitch of top reach.Push away the 2nd then, the rest may be inferred.
When running into soft seat, also can be as first kind of embodiment by pillar 12 bottom girder 9 reaches of slinging.
In conjunction with Fig. 3, the third embodiment of a kind of hydraulic support of the present invention comprises back timber 1; Bottom girder 9; Can be along the linkage 2 of slip before and after the guide rail on the back timber 1; One end is connected the upward passing oil cylinder 3 that the other end is connected with adjacent frame by linkage 2 by pin 4 with back timber; The tail boom 14 that is connected with top beam rear end by pin 5; From the hydraulic prop 12 of the vertical below of back timber, the bottom girder 9 that is connected with hydraulic prop 12 by pin 8; One end is connected the following passing oil cylinder 11 that the other end is connected with transporter 20 by connector 10 by pin 7 with bottom girder; One end is connected the connecting rod 17 that the other end is connected with tail boom 14 lower ends by pin 15 with bottom girder 9; One end is connected the following passing oil cylinder 18 that the other end is connected with transporter 16 by connector 10 by pin 19 with bottom girder.
Below in conjunction with Fig. 3 the sequence of movement of a kind of hydraulic support of the present invention when mining face under mine uses is described: pass oil cylinder 11 at first down and stretch out, with step pitch of transporter 20 reaches, then pass oil cylinder 18 withdrawals, with step pitch of transporter 16 reaches, pillar below the back timber 1 12 is received post then, back timber 1 descends, when back timber 1 has just left top board at last passing oil cylinder 3, pass oil cylinder 11, (or) pass under oil cylinder 18 common the drivings, back timber 1, bottom girder 9, by the upper end of back timber 1 by pin 5 pulling tail booms 14, pasted top board together or putting forward step pitch of leg reach by the lower end of connecting rod 17 pulling tail booms 14 by bottom girder 9, pushing away the 2nd then, the rest may be inferred.
Fig. 4 has provided the front view of the 4th kind of embodiment, the 4th kind of embodiment and the third embodiment are similar, difference only is that the latter has removed connecting rod 17, and back transporter 16 is placed directly on the base plate, and transporter 16 moves forward a step pitch in following back of the driving of passing oil cylinder 18.Increased the guide rod 21 that is connected with preceding transporter 20 by connector 10 in addition, the rear end of guide rod 21 is connected with an end of passing oil cylinder 11 by pin 7, and the other end of passing oil cylinder 11 is connected with bottom girder 9 by pin 22.The flexible resistance that overcomes from top board by the passing oil cylinder 3 on the control back timber 1 when moving frame moves forward, and drags tail boom 14 reaches by pin 5.Flexiblely overcome the resistance that bottom girder is subjected to and move forward bottom girder by what oil cylinder 11 was passed in control, and promotes preceding transporter 20 forward by guide rod 21 and connector 10 from base plate.Action and the third embodiment of the 4th kind of embodiment are basic identical.
In order to adapt to the variation of down-hole geological conditions, the mapping mode of support has varied.For example pillar quantity can increase and decrease.Back timber can by an integral top beam be transformed into two or three back timbers arranged side by side and be transformed into load onto in the centre of the left and right sides back timber that fuses one can before and after the middle back timber that slides, front and back pillar under each back timber arranged side by side can be shared one the bottom girder of passing oil cylinder is housed, tail boom 14 also can by telescopic become non-telescoping and be transformed into oil cylinder and gate are housed.Connecting rod 17 also can be transformed into telescopic, and first also can change the outfit into tail boom 14 to waste rock board 6 with two kinds of embodiments, and various embodiments also can install guide rod 21 or the like additional.This outer connecting device 2 also can have multiple variation; but as long as the passing oil cylinder that is used for that back timber and bottom girder are driven respectively and moves forward synchronously basically is being housed respectively on the back timber and on the bottom girder that the front and back pillar is linked together simultaneously, then these simple conversion all fall in the scope of protection of the invention.
Claims (8)
1. a kind of hydraulic support that is used for coal-face supporting roof under the coal mine, comprise back timber (1), be connected before and after bottom girder (9), hydraulic prop (12), preceding beam (23), guide rod (21), connecting rod (17), tail boom (14) or the retaining cash device (6) of passing oil cylinder and can selecting for use according to geological conditions of hydraulic prop (12) lower end, it is characterized in that back timber when moving frame (1) and the reach synchronously of bottom girder (9), hydraulic prop (12); All adopt between hydraulic prop (12) and back timber (1) and the bottom girder (9) to all movable articulated structure freely of all directions; Be equipped with on the back timber (1) when being used to move the passing oil cylinder (3) of frame, in adjacent and several bottom girders that the front and back post is connected, have at least the passing oil cylinder that is used to move frame and passes transporter also is housed on the bottom girder (9).
2. hydraulic support as claimed in claim 1 is characterized in that the end or the part that go up the passing oil cylinder of installing (3) at described back timber (1) are connected with back timber (1), and the other end is connected with adjacent frame by connector (2).
3. hydraulic support as claimed in claim 1 is characterized in that the end or the part that go up the passing oil cylinder of installing (3) at described back timber (1) are connected with back timber (1), and the other end is connected with this another back timber by connector (2).
4. hydraulic support as claimed in claim 1, the end or the part that it is characterized in that passing oil cylinder (3) that go up to install at described back timber (1) are connected with back timber (1), the other end by connector (2) with can be connected along the joist (13) that traverses below many back timbers of back timber front and back slip.
5. hydraulic support as claimed in claim 1, it is characterized in that going up passing oil cylinder (11) the one end of installing at bottom girder (9) is connected with bottom girder (9), the other end is connected with preceding transporter (20) by connector (10) and/or another passing oil cylinder (18) one ends are connected with bottom girder (9), and the other end is connected with back transporter (16).
6. hydraulic support as claimed in claim 1 is characterized in that going up passing oil cylinder (11) the one end of installing at bottom girder (9) is connected with bottom girder (9), and the other end is connected with transporter (20) by pin (7), guide rod (21), connector (10).
7. hydraulic support as claimed in claim 1 is characterized in that being hinged on back timber (1) at a bottom girder (9) and an end goes up the other end and drag be connected connecting rod (17) between the tail boom on the base plate (14).
8. hydraulic support as claimed in claim 1 is characterized in that back timber (1) rear end is hinged on tail boom (14) upper end by pin (5), and the other end of tail boom (14) drags on base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101951818A CN101451439B (en) | 2007-12-03 | 2007-12-03 | Hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101951818A CN101451439B (en) | 2007-12-03 | 2007-12-03 | Hydraulic support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101451439A CN101451439A (en) | 2009-06-10 |
| CN101451439B true CN101451439B (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101951818A Active CN101451439B (en) | 2007-12-03 | 2007-12-03 | Hydraulic support |
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| Country | Link |
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| CN (1) | CN101451439B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2848406A1 (en) * | 1978-11-08 | 1980-05-29 | Gewerk Eisenhuette Westfalia | Hydraulic walking mine support guide rods tunnel cleaner - is attached to guide rods, pref. comprising cleaning block on each |
| CN2154912Y (en) * | 1993-06-10 | 1994-02-02 | 沈阳矿务局 | Sectional mobile prop |
| CN1149664A (en) * | 1995-08-02 | 1997-05-14 | Dbt德国采矿技术有限公司 | Hydraulic shield support |
| DE20012245U1 (en) * | 2000-07-14 | 2000-09-21 | Maschinenfabrik Glückauf Beukenberg GmbH & Co., 45881 Gelsenkirchen | Extension frame for the route |
| CN200982201Y (en) * | 2006-12-14 | 2007-11-28 | 梁晖勇 | Self-walking type light hydraulic support |
| CN201180554Y (en) * | 2007-12-03 | 2009-01-14 | 李泽宇 | Hydraulic support |
-
2007
- 2007-12-03 CN CN2007101951818A patent/CN101451439B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2848406A1 (en) * | 1978-11-08 | 1980-05-29 | Gewerk Eisenhuette Westfalia | Hydraulic walking mine support guide rods tunnel cleaner - is attached to guide rods, pref. comprising cleaning block on each |
| CN2154912Y (en) * | 1993-06-10 | 1994-02-02 | 沈阳矿务局 | Sectional mobile prop |
| CN1149664A (en) * | 1995-08-02 | 1997-05-14 | Dbt德国采矿技术有限公司 | Hydraulic shield support |
| DE20012245U1 (en) * | 2000-07-14 | 2000-09-21 | Maschinenfabrik Glückauf Beukenberg GmbH & Co., 45881 Gelsenkirchen | Extension frame for the route |
| CN200982201Y (en) * | 2006-12-14 | 2007-11-28 | 梁晖勇 | Self-walking type light hydraulic support |
| CN201180554Y (en) * | 2007-12-03 | 2009-01-14 | 李泽宇 | Hydraulic support |
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| Publication number | Publication date |
|---|---|
| CN101451439A (en) | 2009-06-10 |
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