CN103643980A - Shield support for steep medium-thickness coal seam - Google Patents
Shield support for steep medium-thickness coal seam Download PDFInfo
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Abstract
The invention discloses a shield support for a steep medium-thickness coal seam, which comprises a lower landing leg and a support beam mutually articulated, wherein the support beam is arched; a free end of the support beam is further articulated with an upper landing leg; the lower landing leg and the upper landing leg are linear; first hydraulic cylinders are movably connected between the upper landing leg and the support beam and between the lower landing leg and the support beam respectively; the lower landing leg comprises a lower landing leg main body and a lower landing leg extension body; the upper end of the lower landing leg main body is articulated with the support beam; a sharp head is arranged at a free end of the lower landing leg extension body; a second hydraulic cylinder is movably connected between the lower landing leg main body and the lower landing leg extension body; the first hydraulic cylinder on the lower landing leg is articulated with the lower landing leg main body by the bottom end of a cylinder body of the first hydraulic cylinder; and the tail ends of piston rods of the two first hydraulic cylinders are articulated with the support beam respectively. The support has the benefits that the support is good in stability and safety and can be adjusted with changes in coal seam thickness and a dip angle, and a coal seam recovery ratio and a level of mechanization are high.
Description
Technical field
Patent of the present invention relates to a kind of medium-thickness seam exploitation supporting facility, particularly a kind of high-dipping medium-thickness seam exploitation shield support.
Background technology
Support apparatus in coal-face is the support facility of Safety Work in Colliery, stability in its use procedure, and the controllability of moving frame is the important indicator of this kind equipment.Existing comprehensive mining hydraulic bracket can fully meet the safety and reliability requirement of medium-thickness seam exploitation, but be conventionally only applicable to the exploitation that inclination angle is less than 50 degree coal seams, and for inclination angle, be greater than the steeply-inclined seam mining of 50 degree, because of support unit downslide component excessive, the steadiness extreme difference of equipment self.Therefore, existing hydraulic support is not suitable for half-edge coal seam, even if adopt the pseudo-production technique of bowing, is difficult to eliminate the hidden danger that support unit glides at all yet.Up to now, the supporting of steeply-inclined seam mining is still safely all unsolved difficult problems still of each producing coal country of the world.At present; high-dipping medium-thickness seam is mined and is mostly adopted the polygon roof truss shape supporting structure of rigidity both at home and abroad; between adjacent stent, adopt wire rope to be connected to form flexible shielding system, to isolate goaf and excavation, coal miner carries out coal work under the support protection of shielding system.The supporting structure of this shielding system is simple, and work plane can arrange longlyer; Support relies on gravity to transfer voluntarily realization and moves frame, naturally realizes coal-face and moves towards to advance along mining, and it advances continuously and has simplified roof control, has alleviated the heavy physical labor that rack plate sets up and removes.But there is following defect in the support of existing flexible shield, the one, can not adjust height and width, to coal seam thickness and change of pitch angle bad adaptability; The 2nd, excavation is limited, is not suitable with mechanical mining, and the working environment of workers is severe, and labour intensity is large, yield poorly, and the low and security incident of the safety guarantee problem such as take place frequently; The 3rd, support depends on coal body and supports, its transfer opportunity and under high-volume can not be effectively controlled.For this reason, those skilled in the art has carried out some explorations, and obtained certain effect, as Chinese patent notification number CN201972720U, date of declaration on September 14th, 2011, invention and created name " Telescopic flexible shield support ", disclose and a kind ofly can carry out with Coal Seam Thickness Change the shield support of width adjusting, it comprises upper limbs and the lower limb that are hinged and is connected to the hydraulic jack between the two, upper limbs and lower limb are all ") " rigid structures of shape, hydraulic jack makes shield support form aperture transformable " bow " shape structure, support width when adapting to Coal Seam Thickness Change regulates.But because this support is subject to the element structure of upper limbs and lower limb and shape, limit, can not realize good matching with base plate and the top board of country rock in work plane, this support exists and collapses and to face upward the hidden danger of frame larger; Meanwhile, the moving frame and also can only be completely rely on the spoil in goaf to advance with the driving in coal seam of this support, can not realize the adjusting of support height and move effective control of frame amount.China Patent Publication No. CN102052083A, at 2011 511 days publication date, invention and created name " polygonal hydraulic active support bracket ", a kind of eight polygon supports of ring seal structure are disclosed, this octagon support is comprised of a roof timbering beam, a base plate retaining-plate, two lateral walls and four support bars, in both sides, help and be respectively provided with a hydraulic pressure support device and make lateral wall form stretching structure, on support, adjacent members connects by articulated manner, utilizes the stretching motion of hydraulic pressure support device to realize the height of octagon support and the adjustment of width of enclosed construction.This support can be used for coal roadway support, is convenient to dismounting, meanwhile, can form preload to the top board of coal road, base plate and lateral wall, makes supporting more firm.But because this support is enclosed construction, be unsuitable for the supporting of coal-face; In addition, even if support is used for forming to the flexible support system of every layer of exploitation of high-dipping, no matter be that roof timbering beam, base plate retaining-plate or arbitrary lateral wall are positioned at goaf one side, the situation that all exists respective members two ends hinge point do not waited by spoil extrusion load, when there is this situation, owing to only connecting by articulated manner between support adjacent members, other auxiliary support member are not set between adjacent edge, this unbalanced load can cause respective members to rotate and unstability exists the serious hidden danger of falling down.For this reason, need to be further improved.
Summary of the invention
The object of the invention is to provide a kind of high-dipping medium-thickness seam shield support, to improve supporting stability and safety, and can adjust with Coal Seam Thickness Change, and then improve the rate of extraction and the mechanization degree of high-dipping medium-thickness seam.
For achieving the above object, the present invention adopts following technical scheme.
A high-dipping medium-thickness seam shield support, comprises the lower supporting leg and the supporting beam that are hinged, and described supporting beam is arch, on this supporting beam free end, is also hinged with upper supporting leg; Described lower supporting leg and upper supporting leg be shape linearly all, between upper supporting leg and supporting beam and between lower supporting leg and this supporting beam, is being connected with respectively the first hydraulic cylinder; This lower supporting leg comprises lower supporting leg main body and lower landing leg stretching body, and this lower supporting leg main body upper end and described supporting beam are hinged, and this lower landing leg stretching body free end has sharp-pointed head; Between described lower supporting leg main body and lower landing leg stretching body, be connected with the second hydraulic cylinder; The first hydraulic cylinder on described lower supporting leg is hinged in described lower supporting leg main body by its cylinder body bottom, and the piston-rod end of two the first hydraulic cylinders is hinged on respectively on described supporting beam.
Adopt the present invention of aforementioned techniques scheme, the lower supporting leg of rectilinear structure and upper supporting leg can form good matching with country rock base plate and top plate plant tilting respectively, with enlarge active surface, thereby effectively increase the frictional resistance between support and country rock, and utilize the lower free-ended sharp-pointed head of landing leg stretching body to make in one partial insertion coal seam by the second hydraulic cylinder, thereby form the spud pile of shield support, and then from two aspects, improve the stability of bracket support; The present invention can adjust respectively lower supporting leg and upper supporting leg by two the first hydraulic cylinders, or the two is adjusted to realize the adjustment of support width simultaneously, it can fully meet as the adjustment requirement under the factors vary conditions such as coal seam thickness and seam inclination, effectively to improve the rate of extraction; Meanwhile, utilize relatively fixing in a certain support attitude of pin joint that the first hydraulic cylinder makes supporting beam two ends, avoid goaf spoil extruding force inequality to cause pin joint displacement, eliminate the potential safety hazard of falling down; In addition, lower supporting leg forms stretching structure, the telescopic section of this stretching structure is realized stretching motion by the second hydraulic cylinder, can be easily by the second hydraulic cylinder piston rod, flexible control realizes support height adjusting and the highly control of regulated quantity, for the mechanical coal mining of high-dipping medium-thickness seam provides good implementation condition, be convenient to improve coal mining efficiency; Also have, the supporting beam of domes can effectively improve the supporting intensity of support, and then improves coal mining safety.
Preferably, described upper supporting leg comprises upper supporting leg main body and upper supporting leg extrusome, and this upper supporting leg main body and described supporting beam are hinged, and this upper supporting leg extrusome has sharp-pointed head; The first hydraulic cylinder on described upper supporting leg is hinged in this upper supporting leg main body by its cylinder body bottom; Between described upper supporting leg main body and upper supporting leg extrusome, be connected with the 3rd hydraulic cylinder, the piston-rod end of the 3rd hydraulic cylinder and described upper supporting leg extrusome are hinged; Between described upper supporting leg main body and upper supporting leg extrusome, be formed with guideway structure, this guideway is in order to limit the fixed mobile path of upper supporting leg extrusome, and this fixed mobile path is parallel with the axis of upper supporting leg main body.Two the first hydraulic cylinders are guaranteed support width and highly easy to adjust, reliable jointly; Simultaneously, guideway is in order to guarantee stability and the controllability highly regulating, utilize the free-ended sharp-pointed head of upper supporting leg extrusome to make in one partial insertion coal seam by the 3rd hydraulic cylinder simultaneously, thereby form the spud pile of shield support, thereby further improve the stability of support, eliminate the hidden danger of collapsing of support.Stretching structure upper supporting leg in the technical program coordinates with the lower supporting leg of stretching structure, can realize more easily support height adjustment, and the good stability of adjustment process medium-height trestle,, is more suitable in the softer colliery of country rock meanwhile.
Further preferred, the free end of described upper supporting leg extrusome is wedge shape, and the inclined-plane of wedge shape is towards inner side.Utilize the wedge shape head of upper supporting leg extrusome to insert in coal seam, the inclined-plane of sphenocephaly makes the reaction force of coal seam to upper supporting leg extrusome, has and strengthens the component of upper supporting leg to country rock base plate normal pressure, further improves the stability of stent support.
Preferably, the free end of described lower landing leg stretching body is wedge shape, and the inclined-plane of wedge shape is towards inner side.Utilize the sharp-pointed head of wedge shape of lower landing leg stretching body to insert in coal seam, the inclined-plane of sphenocephaly makes the reaction force of coal seam to lower landing leg stretching body, have and strengthen the component of lower supporting leg to country rock base plate normal pressure, further improve the stability of stent support, that eliminates support faces upward frame hidden danger.
Preferably, the piston-rod end of described the second hydraulic cylinder and described lower landing leg stretching body are hinged; Between this lower supporting leg main body and lower landing leg stretching body, be formed with guideway structure, this guideway is in order to limit the fixed mobile path of lower landing leg stretching body, and this fixed mobile path is parallel with the axis of lower supporting leg main body.To guarantee stability and the controllability highly regulating.
Preferably, described supporting beam is hinged to domes by 3 sections of beams, comprises back timber, and this back timber one end is hinged with supporting beam, and the other end of upper supporting beam and the upper end of described upper supporting leg are hinged; This back timber other end is hinged with lower caving shield, and the lower supporting leg main body upper end of the other end of lower caving shield and described lower supporting leg is hinged; The piston-rod end of described two the first hydraulic cylinders is hinged on respectively described back timber two ends, or the piston-rod end of two the first hydraulic cylinders respectively correspondence is hinged on described upper supporting beam and lower caving shield.Supporting beam is by back timber, upper supporting beam and the hinged domes that form of three sections of beams of lower caving shield, be convenient to realize the large occasion of distance adjusting range between lower supporting leg and upper supporting leg, and the adjustment of seam inclination variation, no matter two first hydraulic cylinders are all hinged on back timber, or be connected on supporting beam and lower caving shield, all can guarantee relatively fixing in a certain support attitude of the pin joint at supporting beam two ends and two pin joints on back timber, avoid goaf spoil extruding force inequality to cause pin joint displacement, eliminate the potential safety hazard of falling down; Be applicable to the colliery of the large and change of pitch angle of Coal Seam Thickness Change.The scheme that the piston-rod end of two the first hydraulic cylinders is hinged on respectively described back timber two ends is large to the support component of country rock top board and base plate, and support force distribution is good, further guarantees that shield support loaded state is stable.The piston-rod end of two the first hydraulic cylinders respectively corresponding scheme shield support inner top space that is hinged on described upper supporting beam and lower caving shield top is large, guarantees to have enough mechanical coal mining implantation of devices space.
Preferably, described supporting beam consists of the domes of rigidity successively the auxiliary beam section of upper supporting, upper supporting girder section, back timber section and lower caving shield section, free end and the described upper supporting leg upper end of the auxiliary beam section of upper supporting are hinged, and the free end of lower caving shield section and described lower supporting leg main body upper end are hinged; The piston-rod end of the first hydraulic cylinder described in two is all hinged in described back timber section.This programme utilizes the overall structure support of existing flexible support as the wherein a part of member in the present invention, and therefore, the present invention can utilize existing support to transform, and to reduce manufacturing cost, economizes on resources; Meanwhile, integrally-built supporting beam supporting capacity is strong, structural stability good, and safety is good, also can effectively increase the service life; In addition, in use, the auxiliary beam section of upper supporting axis can be adjusted on the axis of upper supporting leg, so that the auxiliary beam section of upper supporting forms the extension of upper supporting leg, can further improve the stressing conditions between upper supporting leg upper supporting leg and supporting beam, further improve structural stability.
Further preferred, the piston-rod end of described two the first hydraulic cylinders is hinged on respectively described back timber section two ends.Support component to country rock top board and base plate in this programme is large, and support force distribution is good, further guarantees that shield support loaded state is stable.
The first hydraulic cylinder in the present invention, the second hydraulic cylinder and the 3rd hydraulic cylinder preferably all adopt double acting hydraulic cylinder, and the oil inlet and oil return circulation with mineralization pressure oil, reduces Hydraulic Station fuel tank volume.
The invention has the beneficial effects as follows, the stability of supporting and safety are good, and can adjust with coal seam thickness and change of pitch angle, and the coal seam rate of extraction and mechanization degree are high.
Accompanying drawing explanation
Fig. 1 is the use view of the present invention while being applied to half-edge coal seam.
Fig. 2 is the structural representation of the embodiment of the present invention 1.
Fig. 3 is the A-A sectional view in Fig. 2 of the present invention.
Fig. 4 is the structural representation of the embodiment of the present invention 2.
Fig. 5 is the structural representation of the embodiment of the present invention 3.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated, but therefore do not limit the present invention among described scope of embodiments.
Embodiment 1, referring to Fig. 1, Fig. 2, Fig. 3, a kind of high-dipping medium-thickness seam shield support, support is provided with for fixing a plurality of retainer clips 8 of wire rope, this support comprises lower supporting leg and the supporting beam being hinged, described supporting beam is hinged to domes by 3 sections of beams, is also connected with upper supporting leg on supporting beam free end; Described lower supporting leg and upper supporting leg be shape linearly all, is being connected with respectively the first double acting hydraulic cylinder 5 between upper supporting leg and supporting beam and between lower supporting leg and this supporting beam; Wherein, supporting beam comprises back timber 21, and back timber 21 upper ends are hinged with supporting beam 22, and back timber 21 lower ends are hinged with lower caving shield 23; This lower supporting leg comprises lower supporting leg main body 11 and lower landing leg stretching body 12, and the free end of these lower supporting leg main body 11 upper ends and described lower caving shield 23 is hinged, and the free end of this lower landing leg stretching body 12 has the sharp-pointed head of wedge shape, and the inclined-plane of wedge shape is towards inner side; Between described lower supporting leg main body 11 and lower landing leg stretching body 12, be connected with the second double acting hydraulic cylinder 4, the cylinder body bottom of this second double acting hydraulic cylinder 4 and described lower supporting leg main body 11 are hinged, and the piston-rod end of this second double acting hydraulic cylinder 4 and described lower landing leg stretching body 12 are hinged; Between this lower supporting leg main body 11 and lower landing leg stretching body 12, be formed with guideway structure, this guideway is in order to determine the fixed mobile path of lower landing leg stretching body 12, and this fixed mobile path is parallel with the axis of lower supporting leg main body 11; The first double acting hydraulic cylinder 5 on described lower supporting leg is hinged in described lower supporting leg main body 11 by its cylinder body bottom, and this first double acting hydraulic cylinder 5 is hinged by its piston-rod end and described back timber 21 one end; Described upper supporting leg comprises upper supporting leg main body 31 and upper supporting leg extrusome 32, the upper supporting leg main body 31 of this upper supporting leg and the free end of the upper supporting beam 22 in described supporting beam are hinged, the free end of this upper supporting leg extrusome 32 has the sharp-pointed head of wedge shape, and the inclined-plane of wedge shape is towards inner side; Between described upper supporting leg main body 31 and upper supporting leg extrusome 32, be connected with the 3rd double acting hydraulic cylinder 6, the 3rd double acting hydraulic cylinder 6 is hinged in described upper supporting leg main body 31 by its cylinder body bottom, the piston-rod end of the 3rd double acting hydraulic cylinder 6 and described upper supporting leg extrusome 32 are hinged, between this upper supporting leg main body 31 and upper supporting leg extrusome 32, be formed with guideway structure, this guideway is in order to determine the fixed mobile path of upper supporting leg extrusome 32, and this fixed mobile path is parallel with the axis of upper supporting leg main body 31; The first double acting hydraulic cylinder 5 on described upper supporting leg is hinged in this upper supporting leg main body 31 by its cylinder body bottom, the cylinder body bottom of this first double acting hydraulic cylinder 5 is hinged in upper supporting leg main body 31, and this first double acting hydraulic cylinder 5 is hinged by the other end of its piston-rod end and described back timber 21; Described retainer clip 8 is provided with two, and these two retainer clips 8 are fixedly connected on back timber 21.
The formation of the present embodiment middle guide auxiliary structure, can adopt following simple frame mode to realize, lower supporting leg main body 11 and upper supporting leg main body 31 are by the channel-section steel with rectangle chute, i iron or sheet material are made, sheet material is by welding or be bent into the section configuration with rectangle chute, lower landing leg stretching body 12 and upper supporting leg extrusome 32 are slidably fitted in respective slide slots, so that the mobile route of lower landing leg stretching body 12 is parallel to lower supporting leg main body 11 axis, and the mobile route of upper supporting leg extrusome 32 is fixedly parallel to upper supporting leg main body 31 axis, at one end of this chute opening part, weld a block 7, so that one section of upper enclosed construction that forms of rectangle chute, so that landing leg stretching body 12 and upper supporting leg extrusome 32 move by fixed route.
The present embodiment in actual applications, for compare Ying colliery, country rock rock stratum, can only adopt lower supporting leg to be the mode of stretching structure, with simplified structure, and reduces manufacturing cost and use cost.
Upper supporting beam 22 in the present embodiment, lower caving shield 23, lower supporting leg main body 11 all can be fixedly connected with retainer clip 8 with in upper supporting leg main body 31.
All the other structures of the present embodiment are identical with embodiment 1, do not repeat them here.
Embodiment 3, referring to Fig. 5, described supporting beam consists of the domes of rigidity successively the auxiliary beam section of upper supporting 24a, upper supporting girder section 22a, back timber section 21a and lower caving shield section 23a, this supporting beam is corresponding hinged with described upper supporting leg main body 31 and lower supporting leg main body 11 by the free end of the auxiliary beam section of upper supporting 24a and the free end of lower caving shield section 23a respectively; The piston-rod end of described two the first double acting hydraulic cylinders 5 is hinged on respectively described back timber section 21a two ends.Described retainer clip 8 is provided with two, and these two retainer clips 8 are fixedly connected on back timber section 21a.
Upper supporting girder section 22a in the present embodiment, lower caving shield section 23a, lower supporting leg main body 11 all can be fixedly connected with retainer clip 8 with in upper supporting leg main body 31.
All the other structures of the present embodiment are identical with embodiment 1, do not repeat them here.
Support of the present invention can be concatenated into by wire rope a plurality of, to be configured for the flexible support system in half-edge coal seam; And can in support outside, lay protective screening as required.
In the present invention, alleged double acting hydraulic cylinder refers to the hydraulic cylinder that the both sides of piston can input pressure oil, and the piston rod of hydraulic cylinder stretches out from cylinder body front end.Obviously, hydraulic cylinder of the present invention also can adopt can only be by the single-action hydraulic cylinder of a side input pressure, and its piston reset relies on spring, deadweight or external force, but the fuel tank volume of its Hydraulic Station is larger.
Although combine above accompanying drawing, embodiments of the present invention have been described, but those of ordinary skill in the art also can recognize making various variations or modification in the scope of claims, these modifications and variations are interpreted as within scope of the present invention and intention.
Claims (9)
1. a high-dipping medium-thickness seam shield support, comprises the lower supporting leg and the supporting beam that are hinged, it is characterized in that: described supporting beam is arch, on this supporting beam free end, is also hinged with upper supporting leg; Described lower supporting leg and upper supporting leg be shape linearly all, is being connected with respectively the first double acting hydraulic cylinder (5) between upper supporting leg and supporting beam and between lower supporting leg and this supporting beam; This lower supporting leg comprises lower supporting leg main body (11) and lower landing leg stretching body (12), and this lower supporting leg main body (11) upper end and described supporting beam are hinged; Between described lower supporting leg main body (11) and lower landing leg stretching body (12), be connected with the second hydraulic cylinder (4), this lower landing leg stretching body (12) free end has sharp-pointed head; It is upper that the first hydraulic cylinder (5) on described lower supporting leg is hinged on described lower supporting leg main body (11) by its cylinder body bottom, and the piston-rod end of two the first hydraulic cylinders (5) is hinged on respectively on described supporting beam.
2. high-dipping medium-thickness seam shield support according to claim 1, it is characterized in that: described upper supporting leg comprises upper supporting leg main body (31) and upper supporting leg extrusome (32), this upper supporting leg main body (31) is hinged with described supporting beam, and this upper supporting leg extrusome (32) has sharp-pointed head; The first hydraulic cylinder (5) on described upper supporting leg is hinged in this upper supporting leg main body (31) by its cylinder body bottom; Between described upper supporting leg main body (31) and upper supporting leg extrusome (32), be connected with the 3rd hydraulic cylinder (6), the piston-rod end of the 3rd hydraulic cylinder (6) and described upper supporting leg extrusome (32) are hinged; Between described upper supporting leg main body (31) and upper supporting leg extrusome (32), be formed with guideway structure, this guideway is in order to limit the fixed mobile path of upper supporting leg extrusome (32), and this fixed mobile path is parallel with the axis of upper supporting leg main body (31).
3. high-dipping medium-thickness seam shield support according to claim 2, is characterized in that: the free end of described upper supporting leg extrusome (32) is wedge shape, and the inclined-plane of wedge shape is towards inner side.
4. high-dipping medium-thickness seam shield support according to claim 1, is characterized in that: the free end of described lower landing leg stretching body (12) is wedge shape, and the inclined-plane of wedge shape is towards inner side.
5. high-dipping medium-thickness seam shield support according to claim 1, is characterized in that: the piston-rod end of described the second hydraulic cylinder (4) and described lower landing leg stretching body (12) are hinged; Between this lower supporting leg main body (11) and lower landing leg stretching body (12), be formed with guideway structure, this guideway is in order to limit the fixed mobile path of lower landing leg stretching body (12), and this fixed mobile path is parallel with the axis of lower supporting leg main body (11).
6. according to the high-dipping medium-thickness seam shield support described in any one claim in claim 1～5, it is characterized in that: described supporting beam is hinged to domes by 3 sections of beams, comprise back timber (21), this back timber (21) one end is hinged with supporting beam (22), and the other end of upper supporting beam (22) and the upper end of described upper supporting leg are hinged; This back timber (21) other end is hinged with lower caving shield (23), and lower supporting leg main body (11) upper end of the other end of lower caving shield (23) and described lower supporting leg is hinged; The piston-rod end of described two the first hydraulic cylinders (5) is hinged on respectively described back timber (21) two ends, or the piston-rod end of two the first hydraulic cylinders (5) respectively correspondence is hinged on described upper supporting beam (22) and lower caving shield (23) top.
7. according to the high-dipping medium-thickness seam shield support described in any one claim in claim 1～5, it is characterized in that: described supporting beam consists of the domes of rigidity successively the auxiliary beam section of upper supporting (24a), upper supporting girder section (22a), back timber section (21a) and lower caving shield section (23a), free end and the described upper supporting leg upper end of the auxiliary beam section of upper supporting (24a) are hinged, and the free end of lower caving shield section (23a) and described lower supporting leg main body (11) upper end are hinged; The piston-rod end of the first hydraulic cylinder (5) described in two is all hinged in described back timber section (21a).
8. high-dipping medium-thickness seam shield support according to claim 7, is characterized in that: the piston-rod end of described two the first hydraulic cylinders (5) is hinged on respectively described back timber section (21a) two ends.
9. according to the high-dipping medium-thickness seam shield support described in any one claim in claim 1～5, it is characterized in that: described the first hydraulic cylinder (5), the second hydraulic cylinder (4) and the 3rd hydraulic cylinder (6) are double acting hydraulic cylinder.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373147A (en) * | 2014-09-19 | 2015-02-25 | 郑东风 | Folding extension type roadway hydraulic bracket and application method thereof |
| CN104653201A (en) * | 2015-02-11 | 2015-05-27 | 杨晓东 | Hexagonal short arm half-opened support and construction process thereof |
| CN105422154A (en) * | 2015-12-30 | 2016-03-23 | 北京华创矿安科技有限公司 | Chain-connected external-load self-advancing shield hydraulic support for coal mines |
| CN107100657A (en) * | 2017-06-20 | 2017-08-29 | 重庆工程职业技术学院 | Down-hole lateral wall stress release support meanss |
| CN108625853A (en) * | 2018-04-24 | 2018-10-09 | 山东东山矿业有限责任公司株柏煤矿 | A kind of flexible type shield coal-mining method of half-edge coal seam |
| CN115653656A (en) * | 2022-12-27 | 2023-01-31 | 华北科技学院(中国煤矿安全技术培训中心) | Construction matching device and method for gob-side entry retaining gangue retaining support |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3900640A1 (en) * | 1988-01-14 | 1989-08-03 | Polmag | Support of a roadway area at the intersection with the working space |
| US5743679A (en) * | 1995-08-02 | 1998-04-28 | Dbt Deutsche Bergbau-Technik Gmbh | Hydraulic shield support frame |
| CN102251774A (en) * | 2011-06-28 | 2011-11-23 | 河南理工大学 | Fully mechanized coal mining method combining steeply inclined long-wall drilling type coal mining machine with hydraulic shield type supports |
| CN102251788A (en) * | 2011-06-28 | 2011-11-23 | 河南理工大学 | Hydraulic shield type support for mining steeply inclined coal seam |
| CN202402052U (en) * | 2011-12-21 | 2012-08-29 | 平顶山煤矿机械有限责任公司 | Shielding hydraulic support |
| CN203308478U (en) * | 2013-06-25 | 2013-11-27 | 湖南科技大学 | Temporary support frame |
-
2013
- 2013-12-27 CN CN201310733037.0A patent/CN103643980B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3900640A1 (en) * | 1988-01-14 | 1989-08-03 | Polmag | Support of a roadway area at the intersection with the working space |
| US5743679A (en) * | 1995-08-02 | 1998-04-28 | Dbt Deutsche Bergbau-Technik Gmbh | Hydraulic shield support frame |
| CN102251774A (en) * | 2011-06-28 | 2011-11-23 | 河南理工大学 | Fully mechanized coal mining method combining steeply inclined long-wall drilling type coal mining machine with hydraulic shield type supports |
| CN102251788A (en) * | 2011-06-28 | 2011-11-23 | 河南理工大学 | Hydraulic shield type support for mining steeply inclined coal seam |
| CN202402052U (en) * | 2011-12-21 | 2012-08-29 | 平顶山煤矿机械有限责任公司 | Shielding hydraulic support |
| CN203308478U (en) * | 2013-06-25 | 2013-11-27 | 湖南科技大学 | Temporary support frame |
Non-Patent Citations (1)
| Title |
|---|
| 马树元: "可伸缩柔性掩护支架的探讨", 《阜新矿业学院学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115653656A (en) * | 2022-12-27 | 2023-01-31 | 华北科技学院(中国煤矿安全技术培训中心) | Construction matching device and method for gob-side entry retaining gangue retaining support |
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