CN102536288A - Environment-friendly highwater filled support - Google Patents
Environment-friendly highwater filled support Download PDFInfo
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- CN102536288A CN102536288A CN2012100064625A CN201210006462A CN102536288A CN 102536288 A CN102536288 A CN 102536288A CN 2012100064625 A CN2012100064625 A CN 2012100064625A CN 201210006462 A CN201210006462 A CN 201210006462A CN 102536288 A CN102536288 A CN 102536288A
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Abstract
The invention discloses an environment-friendly highwater filled support, which comprises a front top beam, a rear top beam, a base, a front upright column, a rear upright column, an upper connecting rod and a balancing jack. The rear end of the front top beam and the front end of the rear top beam are hinged with the upper end of the upper connecting rod, so that a three-point hinging mechanism is formed, and the lower end of the upper connecting rod is connected with the base via a front connecting rod and a rear connecting rod; the upper end of the front upright column and the upper end of the rear upright column are respectively hinged with the front top beam and the rear top beam, and the lower end of the front upright column and the lower end of the rear upright column are respectively connected with the base; one end of the balancing jack is hinged with the rear of the front top beam while the other end of the balancing jack is hinged with the front of the rear top beam; and an upper formwork is mounted under the rear top beam, and a lower formwork is mounted at the rear of the base. The environment-friendly highwater filled support is simple in structure and convenient in use, is applicable to being filled by highwater and concrete at any time, and can be used for filled supporting for mining height ranging from 2.2 meters to 3.3 meters.
Description
Technical field
The present invention relates to the support that a kind of colliery mining with stowing is used, relate in particular to the high water filling of a kind of environmental protection support.
Background technology
Along with the using energy source growth of requirement, the quickening day by day of coal mining paces, increasing mine is faced with the seam mining under thick buried depth, girdle and above ground structure and Rail Highway.Seam mining under above ground structure and the Rail Highway can cause subsiding of the face of land, destroys face of land object.Traditional method is to adopt multiple technologies measures such as band exploitation (reservation coal column), resettlement village, filling mining, improves coal mining rate.But along with the increase of mining depth, the raising of the increase of village migration cost and filling technique technological level, the filling mining technology has become development trend.
In the prior art, mining with stowing has caused that early people's attention, the U.S. adopted the mining of water sand completion method the earliest.China is at 20th century middle fifties, and filling method proportion in the non-ferrous metal underground mine is bigger.
The same surface collapse that exists of colliery digging, problem of environment pollution caused.For a long time, because digging subsiding of causing in colliery has bigger destruction to ecological environment, and the seam mining difficulty under the road, village surface structures is huge, and therefore, the filling fully-mechanized mining working becomes an important research project.At present, backfilling goaf generally uses hydraulic filling, material filling, paste body filling, high water filling.Hydraulic filling need be set up one and overlapped independently drainage system, and equipment is many, investment is big, technical sophistication, travel fatigue are big, is difficult to promote the use of.The gangue refill goaf is promptly adopted in the material filling, and it need carry spoil haulage device and a large amount of spoils, and goaf filling is unreal, and top board has certain deflection.
Have yet and adopt high water or concrete to carry out filling, the similar concrete of high water does not need to ram after being filled into the goaf, and its filling effect is better.But, need the goaf be separated into the zonule when adopting high water and concrete filling and carry out filling, also there is not special, convenient and practical equipment at present, cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, easy to use, can be applicable to the high water filling of the environmental protection support that adopts high water and concrete to carry out filling at any time.
The objective of the invention is to realize through following technical scheme:
The high water filling of environmental protection of the present invention support comprises preceding back timber, back back timber, base, front column, rear column, goes up connecting rod, balance jack;
The upper end of the front end of the rear end of back timber, back back timber and said upward connecting rod is hinged before said, forms three point articulated mechanisms, and said lower end of going up connecting rod is connected with said base with back link through front rod;
The upper end of said front column and rear column is hinged with the back back timber with said preceding back timber respectively, and the lower end of said front column and rear column is connected with said base respectively;
The rear portion of one end of said balance jack and said preceding back timber is hinged, and the front portion of the other end of said balance jack and said back back timber is hinged;
Below the back timber of said back cope match-plate pattern is installed, the rear portion of said base is equipped with lower bolster.
Technical scheme by the invention described above provides can be found out, the high water filling of environmental protection provided by the invention support is owing to comprising preceding back timber, back back timber, base, front column, rear column, going up connecting rod, balance jack; The front end of the rear end of preceding back timber, back back timber and the upper end of last connecting rod are hinged, form three point articulated mechanisms; One end of balance jack and the rear portion of preceding back timber are hinged, and the other end is hinged with the front portion of back back timber; Cope match-plate pattern is installed below the back back timber, and the rear portion of base is equipped with lower bolster.Simple in structure, easy to use, can be applicable to and adopt high water and concrete to carry out filling at any time, realize the environmental protection exploitation.
Description of drawings
The structural representation of the high water filling of the environmental protection support that Fig. 1 provides for the embodiment of the invention.
Sequence number among the figure: 1, wall supporting; 2, stock; 3, quarter butt; 4, extensible canopy; 5, joist; 6, preceding back timber; 7, wall supporting jack; 8, flexible jack; 9, front column; 10, balance jack; 11, go up connecting rod; 12, back back timber; 13, rear column; 14, cope match-plate pattern jack; 15, cope match-plate pattern; 16, plate jack; 17, plate; 18, lower bolster jack; 19, lower bolster; 20, back link; 21, front rod; 22, base; 23, pass jack; 24, the long framework of passing.
The specific embodiment
To combine accompanying drawing that the embodiment of the invention is done to describe in detail further below.
The high water filling of environmental protection of the present invention support, its preferable specific embodiment is:
Comprise preceding back timber, back back timber, base, front column, rear column, go up connecting rod, balance jack;
The upper end of the front end of the rear end of back timber, back back timber and said upward connecting rod is hinged before said, forms three point articulated mechanisms, and said lower end of going up connecting rod is connected with said base with back link through front rod;
The upper end of said front column and rear column is hinged with the back back timber with said preceding back timber respectively, and the lower end of said front column and rear column is connected with said base respectively;
The rear portion of one end of said balance jack and said preceding back timber is hinged, and the front portion of the other end of said balance jack and said back back timber is hinged;
Below the back timber of said back cope match-plate pattern is installed, the rear portion of said base is equipped with lower bolster.
The upper end of said cope match-plate pattern and said back back timber are hinged, are provided with the cope match-plate pattern jack between said cope match-plate pattern and the said back back timber;
The lower end of said lower bolster and said base are hinged, are provided with the lower bolster jack between said lower bolster and the institute's base.
Be provided with plate in the said cope match-plate pattern, be provided with the plate jack between said cope match-plate pattern and the said plate.
Immediately height sum is less than the minimum constructive height of said back back timber on height when said cope match-plate pattern is sagging and the said lower bolster.
The minimal support height of this support is 1.8 meters.
Back timber is an integral top beam before said; The front portion of said integral top beam is provided with extensible canopy; Be provided with the extensible canopy jack between said extensible canopy and the integral top beam; The front end of said extensible canopy is hinged with wall supporting, and the below, middle part of said integral top beam is provided with joist, is hinged with the wall supporting jack between said wall supporting and the said joist.
Needling form of structure is adopted in the hinged place of back timber and back back timber and said balance jack before said.
The easy opened box-shaped welded construction that said base is passed a bridge before adopting and having is provided with upside-down mounting and passes jack and pass framework between the base crotch, said passing jack one end and said passing framework are hinged, and it is hinged to pass the jack other end and said base.
Said connecting rod and front rod and back link and the positive quadric chain of the mutually hinged formation of base gone up.
This support can be used for the filling and support of 2.2～3.3 meters mining heights.
The high water filling of environmental protection of the present invention support can adapt to the filling and support of 2.2～3.3 meters mining heights, and this kind support has good filling function and supporting compliance; Can supporting filling fully-mechanized mining working equipment; Be transported to the minery to filling mediums such as Gao Shui, realize limit coal mining limit filling, reduce the labour intensity of hand packing; Improve filling quality and efficient, thereby increase economic efficiency.
Below design feature and operating principle thereof and the beneficial effect of the high water filling of environmental protection of the present invention support further describe:
Among the present invention, back timber is made up of preceding back timber and back back timber, and preceding back timber is that integral top beam adds extensible canopy and single-stage face guard structure.Back timber, back back timber before the upper end of support front column, rear column is hinged respectively, its lower end and base link; The upper end of quadric chain connects with the pin joint of preceding back timber, back back timber, and its lower end and base link, and support adopts positive quadric chain, and last connecting rod is a Y type connecting rod, and front rod is single connecting rod, and back link is single connecting rod.Before and after back timber and to go up three parts of connecting rod hinged, both 3 unification structures had guaranteed that hydraulic support was needed stable, last rod hinge connection forms 3 unifications of uniqueness in both hinged places, last connecting rod can play a caving shield effect.Rear portion at preceding back timber is connected jack with the front end of back back timber, and preceding back timber adopts needling form of structure with the balance jack of back back timber; On the back timber of back, be hinged with cope match-plate pattern, the angle through the cope match-plate pattern jack is regulated cope match-plate pattern is arranged with plate in the cope match-plate pattern, be hinged with the plate jack between plate and the cope match-plate pattern, and plate slides in cope match-plate pattern; Rear portion at base is hinged with lower bolster, regulates the angle of lower bolster through the lower bolster jack.Upper and lower template forms the box board effect at the rear portion of support; Solidify the solid that is formed with certain intensity through injecting high-water material, possessed the effect of roof supporting, realize filling the goaf; Its project organization is compact, applicable to the exploitation of all thickness working face of coal seam.
Preceding back timber is provided with extensible canopy, is provided with the extensible canopy jack between extensible canopy and the back timber, and extensible canopy slides in back timber through flexible jack; Wall supporting is articulated in the extensible canopy front end, and below, back timber middle part is provided with joist, is hinged with the wall supporting jack between wall supporting and the joist.
Gap bridge easy opened high strength box-shaped welded construction before base adopts and has is provided with upside-down mounting and passes jack and the long framework of passing between the base crotch, it is hinged with the passing framework to pass jack one end, and it is hinged to pass the jack other end and base.
The present invention compares with prior art, and its effect is tangible.The basic support of this filling and support is hinged with cope match-plate pattern on the back timber of back; On base, be hinged with lower bolster, can make upper and lower template contact a side that constitutes fill area through cope match-plate pattern jack and lower bolster jack, normally several groups of these basic supports side by side; Together the goaf is surrounded a zonule and be provided with bulkhead bracket in both sides; Pour into high water then and implement the filling operation, treat that high water intensity reaches requirement after, just movable supporting frame propulsioning face; Because cope match-plate pattern and lower bolster through its position of jack regulation and control, therefore can be regulated the angle of inclination of upper and lower template respectively easily in stowing operation, to improve filling effect; Simultaneously; Back back timber front end, top beam rear end and last small end are hinged through a bearing pin, form the structure that three pin joints overlap, and when swing up-down back timber or back back timber, connecting rod are moved; Guarantee the stable of this support frame, avoid taking place the problem of roof caving.Between back timber and back back timber, be provided with balance jack, can strengthen the stability between back timber and the back back timber on the one hand, can regulate the angle of swinging between back timber and the back back timber on the other hand, be convenient to adjust the attitude of back timber and back back timber.Is provided with plate through the plate jack in the cope match-plate pattern, after the back back timber raises, plate is stretched out with lower bolster contact the formation template, stop charges, be convenient to the enforcement of filling.The back timber front end is provided with extensible canopy and wall supporting, supporting scope that can expanded stent.
Specific embodiment:
As shown in Figure 1; In the present embodiment, comprise wall supporting 1, preceding back timber 6, front column 9, four-bar mechanism, base 22, cope match-plate pattern 15 and lower bolster 19, be hinged with front rod 21 and back link 20 on the base 22; The upper end of last connecting rod 11 is articulated on the preceding back timber 6; Last connecting rod 11, front rod 21, back link 20 and base 22 mutually hinged formation quadric chains, last connecting rod 11, front rod 21 and back link 20 all adopt the box-shaped welded construction, and wherein going up connecting rod 11 is Y shape structures; Its upper end is hinged with the back back timber with preceding back timber, and lower end and front and rear connecting rods are hinged; Back timber 6 front end edge fore-and-aft directions are provided with built-in extensible canopy 4 before said; Be provided with extensible canopy jack 8 between extensible canopy 4 and the preceding back timber 6; Wall supporting 1 is articulated in extensible canopy 4 front ends, and preceding back timber 6 middle parts belows is provided with joist 5, between wall supporting 1 and the joist 5 through stock 2, quarter butt 3 and there is wall supporting jack 7 hinged; Extensible canopy 4 and wall supporting 1, supporting scope that can expanded stent; This hydraulic support also is provided with back back timber 12; Back back timber 12 front ends, preceding back timber 6 rear ends and last connecting rod 11 upper ends are hinged through two bearing pins, are provided with rear column 20 between back back timber 12 middle parts and the base 22, and cope match-plate pattern 15 upper ends are articulated on the back timber 12 of back; Be hinged with cope match-plate pattern jack 14 between back back timber 12 and the cope match-plate pattern 15; Lower bolster 19 lower ends are articulated in base 22 rear ends, and the lower bolster lower end is connected with base through two pin joints, are hinged with lower bolster jack 18 between base 22 and the lower bolster 19; Be provided with plate 17 in the cope match-plate pattern 15, be hinged with plate jack 16 between plate 17 and the cope match-plate pattern 15; Cope match-plate pattern is vertical state during use; Lower bolster can suitably tilt; The height sum of cope match-plate pattern 15 and lower bolster 19 is less than the minimum constructive height of back back timber 12; The residing height of back timber (minimum constructive height of present embodiment medium-height trestle is 1.8 meters) after just rear column drops to when minimum is because therefore the height sum of cope match-plate pattern 15 and lower bolster 19 makes cope match-plate pattern be vertical state when filling less than the minimum constructive height of back back timber 12; Lower bolster can be confirmed its angle as required, and through the plate jack plate is stretched out the formation template that contacts with lower bolster; Cope match-plate pattern 15 adopts plate muscle welded construction, and lower bolster 19 adopts welded-steel plate construction.When support raises, can control the plate jack and make plate stretch out a template that contacts the formation fill area with lower bolster 19, be convenient to the enforcement of filling operation.Also be hinged with two balance jack 10 at preceding back timber 6 rear portions and back back timber 12 lower front, with the relative angle between back timber before regulating and the back back timber, the state of back timber, back back timber before adjusting and the maintenance.Base 22 adopts band gap bridge easy opened high strength casing welded construction, is provided with upside-down mounting between base 22 crotch and passes jack 23 and the long framework 24 of passing, and it is hinged with the passing framework to pass jack one end, and it is hinged to pass the jack other end and base.
During concrete work, be that template constitutes template with the lower bolster of back timber cope match-plate pattern and base behind a plurality of these supports that are arranged side by side, with the upper and lower side template and the goaf of another kind of filling and support bulkhead bracket side; The goaf demarcation strip that needs filling is closed with the zone; Formed fill area, and then injected Gao Shui through the hole of the Φ 200mm on the side template on the bulkhead bracket, thereby realized the filling function by pipeline; Treat just can pushing and sliding move frame after charges intensity reaches requirement; Carry out the exploitation supporting of a upper/lower positions, and filling, realize that the supporting filling is integrated.Adopt this support to carry out filling, do not need the reinforcement mechanism compacting, and filling effect is good, but efficient is not high.
Because cope match-plate pattern and lower bolster through its position of jack regulation and control, therefore can be regulated the angle of inclination of upper and lower template respectively easily in stowing operation, to improve filling effect; Simultaneously, back back timber front end, top beam rear end and last small end are hinged through two bearing pins, form the structure that three pin joints overlap, and when swing up-down back timber or back back timber, connecting rod are moved, and guarantee the stable of this support frame.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. the high water filling of an environmental protection support is characterized in that, comprises preceding back timber, back back timber, base, front column, rear column, goes up connecting rod, balance jack;
The upper end of the front end of the rear end of back timber, back back timber and said upward connecting rod is hinged before said, forms three point articulated mechanisms, and said lower end of going up connecting rod is connected with said base with back link through front rod;
The upper end of said front column and rear column is hinged with the back back timber with said preceding back timber respectively, and the lower end of said front column and rear column is connected with said base respectively;
The rear portion of one end of said balance jack and said preceding back timber is hinged, and the front portion of the other end of said balance jack and said back back timber is hinged;
Below the back timber of said back cope match-plate pattern is installed, the rear portion of said base is equipped with lower bolster.
2. the high water filling of environmental protection according to claim 1 support is characterized in that, the upper end of said cope match-plate pattern and said back back timber are hinged, is provided with the cope match-plate pattern jack between said cope match-plate pattern and the said back back timber;
The lower end of said lower bolster and said base are hinged, are provided with the lower bolster jack between said lower bolster and the institute's base.
3. the high water filling of environmental protection according to claim 2 support is characterized in that, is provided with plate in the said cope match-plate pattern, is provided with the plate jack between said cope match-plate pattern and the said plate.
4. the high water filling of environmental protection according to claim 3 support is characterized in that, immediately height sum is less than the minimum constructive height of said back back timber on height when said cope match-plate pattern is sagging and the said lower bolster.
5. according to the high water filling of each described environmental protection of claim 1 to 4 support, it is characterized in that the minimal support height of this support is 1.8 meters.
6. the high water filling of environmental protection according to claim 5 support; It is characterized in that said preceding back timber is an integral top beam, the front portion of said integral top beam is provided with extensible canopy; Be provided with the extensible canopy jack between said extensible canopy and the integral top beam; The front end of said extensible canopy is hinged with wall supporting, and the below, middle part of said integral top beam is provided with joist, is hinged with the wall supporting jack between said wall supporting and the said joist.
7. the high water filling of environmental protection according to claim 6 support is characterized in that, needling form of structure is adopted in the hinged place of said preceding back timber and back back timber and said balance jack.
8. the high water filling of environmental protection according to claim 5 support; It is characterized in that; The easy opened box-shaped welded construction that said base is passed a bridge before adopting and having; Be provided with upside-down mounting between the base crotch and pass jack and pass framework, said passing jack one end and said passing framework are hinged, and it is hinged to pass the jack other end and said base.
9. the high water filling of environmental protection according to claim 5 support is characterized in that, said connecting rod and front rod and back link and the positive quadric chain of the mutually hinged formation of base gone up.
10. the high water filling of environmental protection according to claim 5 support is characterized in that this support is used for the filling and support of 2.2～3.3 meters mining heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100064625A CN102536288A (en) | 2012-01-10 | 2012-01-10 | Environment-friendly highwater filled support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100064625A CN102536288A (en) | 2012-01-10 | 2012-01-10 | Environment-friendly highwater filled support |
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| CN102536288A true CN102536288A (en) | 2012-07-04 |
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| CN2012100064625A Pending CN102536288A (en) | 2012-01-10 | 2012-01-10 | Environment-friendly highwater filled support |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104273A (en) * | 2012-11-29 | 2013-05-15 | 郑州四维机电设备制造有限公司 | Rear top beam multi-step distance filling hydraulic support |
| CN109538267A (en) * | 2018-12-21 | 2019-03-29 | 中煤北京煤矿机械有限责任公司 | A kind of high stability high-adaptability overlength supported laneway end support equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848420A (en) * | 1972-03-24 | 1974-11-19 | Gullick Dobson Ltd | Mine roof supports |
| CN200999614Y (en) * | 2007-01-24 | 2008-01-02 | 沈阳天安矿山机械科技有限公司 | Roadside filling side template support |
| CN201025053Y (en) * | 2007-03-29 | 2008-02-20 | 天地科技股份有限公司 | Hydraulic pressure supporter for exploration filling on coal mine working ground |
| CN101457652A (en) * | 2008-05-13 | 2009-06-17 | 天地科技股份有限公司 | Overlarge mining height hydraulic support |
| CN201606098U (en) * | 2010-02-26 | 2010-10-13 | 郑州四维机电设备制造有限公司 | Basic bracket of filling support |
| CN102168567A (en) * | 2010-02-25 | 2011-08-31 | 郑州四维机电设备制造有限公司 | Filling supporting partition board bracket |
| CN102182487A (en) * | 2011-05-09 | 2011-09-14 | 郑州煤矿机械集团股份有限公司 | Liquid filling hydraulic support |
| CN202531204U (en) * | 2012-01-10 | 2012-11-14 | 中煤北京煤矿机械有限责任公司 | Green and environment-friendly high water filling bracket |
-
2012
- 2012-01-10 CN CN2012100064625A patent/CN102536288A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848420A (en) * | 1972-03-24 | 1974-11-19 | Gullick Dobson Ltd | Mine roof supports |
| CN200999614Y (en) * | 2007-01-24 | 2008-01-02 | 沈阳天安矿山机械科技有限公司 | Roadside filling side template support |
| CN201025053Y (en) * | 2007-03-29 | 2008-02-20 | 天地科技股份有限公司 | Hydraulic pressure supporter for exploration filling on coal mine working ground |
| CN101457652A (en) * | 2008-05-13 | 2009-06-17 | 天地科技股份有限公司 | Overlarge mining height hydraulic support |
| CN102168567A (en) * | 2010-02-25 | 2011-08-31 | 郑州四维机电设备制造有限公司 | Filling supporting partition board bracket |
| CN201606098U (en) * | 2010-02-26 | 2010-10-13 | 郑州四维机电设备制造有限公司 | Basic bracket of filling support |
| CN102182487A (en) * | 2011-05-09 | 2011-09-14 | 郑州煤矿机械集团股份有限公司 | Liquid filling hydraulic support |
| CN202531204U (en) * | 2012-01-10 | 2012-11-14 | 中煤北京煤矿机械有限责任公司 | Green and environment-friendly high water filling bracket |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104273A (en) * | 2012-11-29 | 2013-05-15 | 郑州四维机电设备制造有限公司 | Rear top beam multi-step distance filling hydraulic support |
| CN103104273B (en) * | 2012-11-29 | 2016-03-23 | 卡特彼勒（郑州）有限公司 | After a kind of, back timber multi-pace fills hydraulic support |
| CN109538267A (en) * | 2018-12-21 | 2019-03-29 | 中煤北京煤矿机械有限责任公司 | A kind of high stability high-adaptability overlength supported laneway end support equipment |
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Application publication date: 20120704 |