CN202047852U - Twin-station two-column low-position top coal caving hydraulic bracket - Google Patents
Twin-station two-column low-position top coal caving hydraulic bracket Download PDFInfo
- Publication number
- CN202047852U CN202047852U CN2011201425655U CN201120142565U CN202047852U CN 202047852 U CN202047852 U CN 202047852U CN 2011201425655 U CN2011201425655 U CN 2011201425655U CN 201120142565 U CN201120142565 U CN 201120142565U CN 202047852 U CN202047852 U CN 202047852U
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- base
- back timber
- hinged
- caving
- twin
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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Lining And Supports For Tunnels (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The utility model discloses a twin-station two-column low-position top coal caving hydraulic bracket, which comprises a base, a top beam, a shielding beam and a twin-station balance jack, wherein an upright post is arranged between the base and the top beam, the top beam is hinged with the shielding beam, and one end of the twin-station balance jack is hinged with the shielding beam; and the other end of the twin-station balance jack is hinged with the top beam and can also be hinged with the base, and the top beam and the base are respectively provided with a hinge point. Different structural forms can be selected according to the top coal situation, when the twin-station balance jack is supported on the top beam, the mining of the comprehensive work surface of broken top coal can be facilitated; and when the twin-station balance jack is supported on the base, the mining of the comprehensive work surface of more complete top coal can be facilitated, and the hydraulic bracket can be well adaptive to the top coal.
Description
Technical field
The utility model relates to a kind of coal mine support device, relates in particular to a kind of double two post low caving coal hydraulic supports.
Background technology
Shield type low caving coal hydraulic support is the caving roof coal hydraulic support that present fully mechanized coal face mainly uses.
Mainly contain four post support shield type low caving coal hydraulic support and two kinds of form of structure of two post support shield type low caving coal hydraulic supports.Both differences are that the former has two rows totally four root posts, and the latter has only a row totally two root posts and form stabilizing mechanism by the balance jack between back timber and caving shield.
There is following shortcoming at least in four post support shield type low caving coal hydraulic support of the prior art:
Support is relatively poor to the compliance of breaking surrounding rock, and the front and rear row column discontinuity equalization phenomenon of support is serious.Especially when the top coal was broken, the support point of resultant force was generally forward, and front pillar is stressed big, and rear pillar is stressed little, even tension.
There is following shortcoming at least in two post support shield type low caving coal hydraulic supports of the prior art:
The top power of cutting at the back timber rear portion of support relatively a little less than, relatively poor relatively to the top board compliance that the top coal is more complete.
The utility model content
The purpose of this utility model provides a kind of to top coal compliance double two post low caving coal hydraulic supports preferably.
The purpose of this utility model is achieved through the following technical solutions:
Double two post low caving coal hydraulic supports of the present utility model, comprise base, back timber, caving shield, be provided with column between described base and the back timber, hinged between described back timber and the caving shield, also comprise the double balance jack, an end and the described caving shield of described double balance jack are hinged; The other end when first station and described back timber hinged, when second station and described base hinged, described back timber and described base are respectively equipped with pin joint.
The technical scheme that provides by above-mentioned the utility model as can be seen, described in the utility model, described back timber and described base are respectively equipped with pin joint, because an end and the caving shield of double balance jack are hinged; The other end was not only can be with back timber hinged but also can be hinged with base, and back timber and base are respectively equipped with pin joint.Can select different form of structure according to the situation of top coal, better to top coal compliance.
Description of drawings
Fig. 1 is the structural representation of the utility model double two post low caving coal hydraulic supports.
The specific embodiment
Double two post low caving coal hydraulic supports of the present utility model, its preferable specific embodiment as shown in Figure 1, comprise base 7, back timber 1, caving shield 2, be provided with column 9 between base 7 and the back timber 1, column 9 can have two, lay respectively at the longitudinal median plane both sides of back timber 1 and base 7, column 9 also can have many.
Hinged between back timber 1 and the caving shield 2, also comprise double balance jack 8, an end and the caving shield 2 of double balance jack 8 are hinged; The other end both can be hinged with back timber 1, again can be hinged with base 7, back timber 1 is respectively equipped with pin joint with base 7, when first station and back timber hinged, when second station and base hinged.
Double balance jack 8 can have two, lays respectively at the longitudinal median plane both sides of caving shield 2 and base 7; Or lay respectively at the longitudinal median plane both sides of back timber 1 and base 7.
Double balance jack 8 also can have one, is positioned at the longitudinal median plane of caving shield 2 and base 7, or is positioned at the longitudinal median plane of back timber 1 and caving shield 2.
Double two post low caving coal hydraulic supports of the present utility model when 8 of double balance jack are on back timber 1, help the coal fully mechanized coal face exploitation of broken top; When 8 of double balance jack are on base 7, help more complete top coal fully mechanized coal face exploitation.Can adapt to the complete top board of top coal, can adapt to the top board of crushing voerhead coal again, improve sublevel caving hydrau lic support the compliance of different surrounding rock, the supporting effect that has improved fully mechanized coal face, the requirement of adaptation high-yield and high-efficiency longwall top coal caving.
Specific embodiment:
Referring to Fig. 1, two post doubles, two post low caving coal hydraulic supports are mainly put coal mechanism 5, push unit 6, base 7, double balance jack 8, column 9, wall supporting device 10 etc. by back timber 1, caving shield 2, front rod 3, back link 4, tail beam flashboard and are formed.
Between back timber 1 and the base 6 by the 9 hinged supports of two root posts, wall supporting device 10 is hinged on the front end of back timber 1, the rear end of back timber 1 and caving shield 2 are hinged, have double balance jack 8 hinged between back timber 1 or base 7 and the caving shield 2, tail boom and tail boom jack that the rear end of caving shield 2 and tail beam flashboard are put coal mechanism 5 are hinged.Front rod 3, back link 4 are articulated between caving shield 2 and the base 7, form four stable connecting rod stabilizing mechanisms.Push unit 6 is arranged in the middle bay of base 7.
Column 9 has only two, is single layout, and the front and back of column 9 are walkway.Column 9 adopts single telescopic column.Column 9 and back timber 1, base 7 hinged needlings adopt reliable structure commonly used, with the guaranteed strength designing requirement.
Base 7 is whole semirigid structure.Can be provided with on the base 7 and move frame and lift base device, the base front end suitably can be lifted, make support on the step base plate or base front end when sinking, the base front end be lifted and reach smoothly.
Thrust gear 6 is arranged in the middle bay of base 7, and both formal dress was passed the short pusher structure of jack, can be the long pusher structure of upside-down mounting passing jack again.The two ends of push unit link to each other with bracket base 7 with anterior conveyer respectively, realize the function that hydraulic support and conveyer are pushed ahead.
Wall supporting device 10 is hinged on the front end of back timber 1, can overturn 180 ° that it is flat to choose, and safeguards the frame front top plate.Mainly form by face guard, wall supporting jack and corresponding connector and annex etc.
Back timber 1 both can adopt whole long back timber, can adopt the short back timber with hinged front-axle beam again.Have the active side backplate on the back timber 1, the side guard board of back timber 1 both sides, one side is for fixing during use, and opposite side is scalable, with space between the sealing frame.The active side backplate is hinged by the thruster jack in guide peg and the beam body, and is flexible by means of the passing realization of thruster jack.
Caving shield 2 also adopts band active side backplate.The active side backplate of caving shield 2, structure is identical with the active side backplate of back timber.
The main effect of double balance jack 8 is to adjust the back timber angle, and by different link positions, makes hydraulic support adapt to different coal roof conditions, guarantees the reasonable stress of hydraulic support.The double balance jack can be arranged single or two as required.
Front rod 3, back link 4 be articulated in caving shield 2 and base 7 between, constitute quadric chain, form the stabilizing mechanism of hydraulic support.Front rod 3 adopts wide connecting rod, and back link 4 adopts narrow connecting rod.This front wide and rear narrow positive quadric chain design can increase the anti-twisting property of support, makes that support stability is good, reliability is high, can guarantee that again there is the I﹠M space of bigger equipment at the support rear portion.
Tail beam flashboard is put the coal mechanism 5 main functions that realize low caving coal.Constitute by tail boom, plate, tail boom jack, plate jack and corresponding connector etc.Tail boom and tail boom jack be 2 hinged with caving shield respectively, tail boom is swung up and down, and plate is installed in the tail boom casing by the plate jack, and the plate jack can make plate stretch out backward and toward reclaiming from the tail boom afterbody.By the coordinated manipulation of tail boom jack and plate jack, realize putting the coal function.Tail beam flashboard is put on the tail boom of coal mechanism 5, also the active side backplate can be set as required, structural shape and back timber 1 and caving shield 2 similar.
Two post doubles, two post low caving coal hydraulic supports adopt both can adopt the high flow manual control system, can adopt electrichydraulic control again.Support is provided with the atomizing de-dusting system.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (6)
1. double two post low caving coal hydraulic supports, comprise base, back timber, caving shield, be provided with column between described base and the back timber, hinged between described back timber and the caving shield, it is characterized in that, also comprise the double balance jack, an end and the described caving shield of described double balance jack are hinged;
The other end when first station and described back timber hinged, when second station and described base hinged, described back timber and described base are respectively equipped with pin joint.
2. double two post low caving coal hydraulic supports according to claim 1 is characterized in that described column has two, lay respectively at the longitudinal median plane both sides of described back timber and base.
3. double two post low caving coal hydraulic supports according to claim 1 and 2, it is characterized in that: described double balance jack has two, lays respectively at the longitudinal median plane both sides of described caving shield and base.
4. double two post low caving coal hydraulic supports according to claim 1 and 2, it is characterized in that: described double balance jack has two, lays respectively at the longitudinal median plane both sides of described back timber and caving shield.
5. double two post low caving coal hydraulic supports according to claim 1 and 2, it is characterized in that: described double balance jack has one, is positioned at the longitudinal median plane of described caving shield and base.
6. double two post low caving coal hydraulic supports according to claim 1 and 2, it is characterized in that: described double balance jack has one, is positioned at the longitudinal median plane of described back timber and caving shield.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201425655U CN202047852U (en) | 2011-05-06 | 2011-05-06 | Twin-station two-column low-position top coal caving hydraulic bracket |
| AU2012100340A AU2012100340A4 (en) | 2011-05-06 | 2012-03-27 | Dual Station Two-leg Low-position Top Coal Caving Hydraulic Support |
| RU2012117722/03U RU121861U1 (en) | 2011-05-06 | 2012-04-28 | TWO-POSITION TWO-POINT HYDRAULIC FASTENERS FOR DESTRUCTION OF A LOW-LOCATED Upper Bundle of a coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201425655U CN202047852U (en) | 2011-05-06 | 2011-05-06 | Twin-station two-column low-position top coal caving hydraulic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047852U true CN202047852U (en) | 2011-11-23 |
Family
ID=44988163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201425655U Expired - Fee Related CN202047852U (en) | 2011-05-06 | 2011-05-06 | Twin-station two-column low-position top coal caving hydraulic bracket |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202047852U (en) |
| AU (1) | AU2012100340A4 (en) |
| RU (1) | RU121861U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013131318A1 (en) * | 2012-03-07 | 2013-09-12 | 中煤北京煤矿机械有限责任公司 | Two-prop shield hydraulic support for large centre to centre distance and ultra-high working resistance in medium-thickness coal seams |
| CN104695994A (en) * | 2013-12-04 | 2015-06-10 | 华亭煤业集团有限责任公司 | Two-column transition hydraulic support |
| CN107130989A (en) * | 2017-05-12 | 2017-09-05 | 河南理工大学矿山开发设计研究所 | Coal Caving Method of Hydraulic Support in Fully Mechanized Caving Face |
| CN114439526A (en) * | 2022-02-18 | 2022-05-06 | 煤炭科学研究总院有限公司 | Hydraulic supports and support methods |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195459B (en) * | 2013-04-24 | 2016-01-20 | 江苏蛟龙重工集团有限公司 | Low caving coal hydraulic support |
| CN105443152A (en) * | 2015-12-21 | 2016-03-30 | 枣庄矿业集团高庄煤业有限公司 | Light shielding frame for removing working face |
| CN107939433A (en) * | 2017-12-19 | 2018-04-20 | 中煤北京煤矿机械有限责任公司 | Across the efficient fully mechanized mining support apparatus of the big magnification high inclination-angle of limit for height |
| CN114562314B (en) * | 2022-03-09 | 2023-02-28 | 中国矿业大学 | A fully mechanized caving face filling hydraulic support and its application method |
| CN118273349B (en) * | 2024-05-31 | 2024-08-20 | 山西省水利建筑工程局集团有限公司 | Temporary supporting structure of steel sheet pile and supporting method thereof |
-
2011
- 2011-05-06 CN CN2011201425655U patent/CN202047852U/en not_active Expired - Fee Related
-
2012
- 2012-03-27 AU AU2012100340A patent/AU2012100340A4/en not_active Expired
- 2012-04-28 RU RU2012117722/03U patent/RU121861U1/en active IP Right Revival
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013131318A1 (en) * | 2012-03-07 | 2013-09-12 | 中煤北京煤矿机械有限责任公司 | Two-prop shield hydraulic support for large centre to centre distance and ultra-high working resistance in medium-thickness coal seams |
| CN104695994A (en) * | 2013-12-04 | 2015-06-10 | 华亭煤业集团有限责任公司 | Two-column transition hydraulic support |
| CN107130989A (en) * | 2017-05-12 | 2017-09-05 | 河南理工大学矿山开发设计研究所 | Coal Caving Method of Hydraulic Support in Fully Mechanized Caving Face |
| CN114439526A (en) * | 2022-02-18 | 2022-05-06 | 煤炭科学研究总院有限公司 | Hydraulic supports and support methods |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2012100340A4 (en) | 2012-04-26 |
| RU121861U1 (en) | 2012-11-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20160506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |