CN201972720U - Telescopic flexible shield support - Google Patents
Telescopic flexible shield support Download PDFInfo
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- CN201972720U CN201972720U CN2011200235206U CN201120023520U CN201972720U CN 201972720 U CN201972720 U CN 201972720U CN 2011200235206 U CN2011200235206 U CN 2011200235206U CN 201120023520 U CN201120023520 U CN 201120023520U CN 201972720 U CN201972720 U CN 201972720U
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- upper limbs
- lower limb
- limbs
- shield
- support
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Abstract
The utility model discloses an telescopic flexible shield support comprising a plurality of independent shield supports with wooden supports among the independent shield supports, which are connected by steel wire ropes; the independent shield supports comprise upper limbs and lower limbs which are mutually hinged, in arch shapes and in rigid structures; hydraulic jacks are hinged between the upper limbs and the lower limbs; the lower ends of the hydraulic jacks are connected onto support sides of the lower limbs which contain free ends; and due to the hydraulic jacks, the independent shield supports form the 'arch'-shaped structures, and the upper ends of the axes of the hydraulic jacks are inclined towards the hinge point directions of the upper limbs and the lower limbs. The preferred scheme is that: the upper limb bodies and the lower limb bodies are formed by bending I-shaped steel, and hinge connection structures are welded between the upper limbs and the lower limbs; and one sides of the upper limbs and the lower limbs are welded with baffles for preventing the wooden supports from falling off. The telescopic flexible shield support has the beneficial effects that: pushing forwards and lowering in a coal mining process are convenient, the operation space is large, the coal resource recovery rate is high, the coal quality is good, the coal mining efficiency is high, the structure is simple, the installation and the detachment are convenient, the use is safe, and the scope of application is wide.
Description
Technical field
The utility model relates to a kind of shielding apparatus that is used for the steeply-inclined seam mining construction, particularly a kind of scalable flexible type shield.
Background technology
Scalable flexible type shield is a kind of shielding apparatus that is used for steeply-inclined seam mining construction, its adopt wire rope with each independently shield support flexibly connect.When half-edge coal seam is met in recovery process when bellying, flexible by hydraulic jack can strut single frame shield support, increases the shield support width, in the coal mining process, coal can not occur and lose phenomenon, improved the rate of recovery of coal resources; When squeeze, by the withdrawal jack, the width of single frame shield support is diminished, in the coal mining process, avoided broken seat earth rock to mine, help improving coal mining efficient and Coal Quality.The three limit rectangular frame structure that existing scalable flexible type shield mainly contains the house frame and do not seal.The top of house shelf structure shield support is herringbone structure, and the jack that is provided with between the herringbone both sides is in horizontal direction substantially, and the herringbone limit of both sides is outer simultaneously opens or retraction.Though this support stability of strutting system still can owing to limited by self structure, it is serious that support sticks up pin, when seam inclination during less than 60 °, this flexible type shield can't be realized normally transferring, and can only be applicable to inclination angle steeply-inclined seam mining more than 60 °.Simultaneously, the motive force of goaf spoil concentrates on two limits of triangle, increased the resistance that pushes away before the support, support advances difficulty, must adopt individual prop manually to lead frame pushes away before could be normal, and triangle frame also causes working space obviously to dwindle, and causes gas exceeding limit easily, causes serious security threat.Three limit rectangular frame structure supports are owing to be equipped with hydraulic jack between lower limb and upper limbs and perpendicular limb, have that complex structure, manufacturing cost height, disassemble and assemble work are loaded down with trivial details, maintenance changes the big deficiency of workload.
Summary of the invention
This is suitable for novel purpose and is at the deficiencies in the prior art, and push away and transfer conveniently before when a kind of seam inclination is provided less than 60 °, and simple in structure, simple load and unload scalable flexible type shield.
For achieving the above object, the utility model adopts following technical scheme.
A kind of scalable flexible type shield, comprise several independent shield supports that connect by wire rope, between adjacent independent shield support, be provided with gallows timber, described independent shield support comprises upper limbs and the lower limb that are hinged, between upper limbs and lower limb, be hinged with hydraulic jack, described upper limbs and lower limb all are ") " rigid structures of shape, it is free end that upper limbs and lower limb all have an end; The lower end of described hydraulic jack is connected lower limb to be contained on the free-ended support edge, and hydraulic jack makes independent shield support form aperture transformable " bow " shape structure, and hydraulic jack axis upper end tilts to upper limbs and lower limb pin joint direction.
After adopting the aforementioned techniques scheme, the stroke of hydraulic jack is regulated and controlled, can realize the aperture adjustment of each independent shield support respectively,, improve coal seam degree of collecting and Coal Quality to adapt to the needs that the coal seam thickness changes.Simultaneously, because each independent shield support integral body is bow-shaped structural, the goaf spoil disperses its thrust profiles, advance and to transfer resistance little, in seam inclination during less than 60 °, the transferring and advancing easily of shield support, certainly in seam inclination during greater than 60 °, shield support is easier transfers.In addition, hydraulic jack rises gradually up and down by lower limb, and the pin joint direction of limb tilts, promptly to arc inner inclination, not only can enlarge the operating space of mining operations, be convenient to mining operations, also can eliminate the potential safety hazard of gas exceeding limit, also can make the integral rigidity of each independent shield support better, supporting capacity is stronger, safety is higher, changeing when also being convenient to keep in repair.And only being provided with a hydraulic jack, its structure is also simpler.
Preferably, the main body of described upper limbs and lower limb is bent into by i iron, is welded with hinge engaging structure between upper limbs and lower limb, and two flaps of hinge engaging structure weld with upper limbs and lower limb respectively; Free end end at described upper limbs and lower limb is welded with backing plate.The bending mode is made ") that can make upper limbs and lower limb " shape turnover position formation rounding off, further disperse the thrust profiles of goaf spoil to independent shield support, the propelling resistance that pushes away before the reduction, further guarantee shield support before push away and transfer, backing plate is used to improve the loaded area of shield support in addition, be more conducive to shield support before push away and transfer.
Preferably, a face down bonding of described upper limbs and lower limb is connected to and stretches out the baffle plate that preseting length is used to stop the gallows timber slippage from the side, and baffle plate is welded on the two-phase of i iron side channel on inwall.Because flexible type shield is preceding pushing away in the process, distance between the adjacent independent shield support of part increases, baffle plate can stop effectively that gallows timber causes damage from skidding off between the adjacent independent shield support, reduces the duplication of labour that gallows timber lost or avoided adding again gallows timber, to increase economic efficiency.
The beneficial effects of the utility model are, push away and transfer before in the coal mining process of half-edge coal seam conveniently, working space is big, coal recovery rate is high, Coal Quality is good, coal mining efficient height, and simple in structure, mounting or dismounting are convenient, safe in utilization, applied widely.
Description of drawings
Fig. 1 is a structural representation of the present utility model, and among the figure, independent shield support is in the maximum opening state, and support top fill area is a spoil, and support below fill area is the coal seam;
Fig. 2 is a structural representation of the present utility model, and among the figure, independent shield support is in minimum aperture state, and support top fill area is a spoil, and support below fill area is the coal seam;
Fig. 3 is that A among the utility model Fig. 2 is to view;
Fig. 4 is the B-B sectional view among the utility model Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, but therefore the utility model is not limited among the described scope of embodiments.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of scalable flexible type shield that is used for steeply-inclined seam mining, comprise several independent shield supports that connect by wire rope 7, wire rope 7 is fixedlyed connected by the independent shield support of bolt and each by pressing plate 8, between adjacent independent shield support, be provided with gallows timber 4, described independent shield support comprises upper limbs 1 and the lower limb 2 that are hinged, between upper limbs 1 and lower limb 2, be hinged with hydraulic jack 3, described upper limbs 1 and lower limb 2 all are ") " rigid structures of shape, it is free end that upper limbs 1 and lower limb 2 all have an end; The lower end of described hydraulic jack 3 is connected lower limb 2 to be contained on the support edge 21 of end, and hydraulic jack 3 makes independent shield support form aperture transformable " bow " shape structure, and hydraulic jack 3 axis upper end tilts to upper limbs 1 and lower limb 2 pin joint directions.
The main body of described upper limbs 1 and lower limb 2 is bent into by i iron, is welded with hinge engaging structure 6 between upper limbs 1 and lower limb 2, and two flaps of hinge engaging structure 6 weld with upper limbs 1 and lower limb 2 respectively; Free end end at described upper limbs 1 and lower limb 2 is welded with backing plate 9.
One face down bonding of described upper limbs 1 and lower limb 2 is connected to and stretches out the baffle plate 5 that preseting length is used to stop gallows timber 4 from the side, and baffle plate 5 is welded on the two-phase of i iron side channel on inwall.
Though more than combine accompanying drawing and described embodiment of the present utility model, but those of ordinary skill in the art can recognize also in the scope to claims and make various variations or modification that these modifications and variations are interpreted as within scope of the present utility model and intention.
Claims (3)
1. scalable flexible type shield, comprise several independent shield supports that connect by wire rope, between adjacent independent shield support, be provided with gallows timber (4), described independent shield support comprises upper limbs (1) and the lower limb (2) that are hinged, between upper limbs (1) and lower limb (2), be hinged with hydraulic jack (3), it is characterized in that: described upper limbs (1) and lower limb (2) all are ") " rigid structures of shape, it is free end that upper limbs (1) and lower limb (2) all have an end; The lower end of described hydraulic jack (3) is connected lower limb (2) and contains on the free-ended support edge (21), hydraulic jack (3) makes independent shield support form aperture transformable " bow " shape structure, and hydraulic jack (3) axis upper end tilts to upper limbs (1) and lower limb (2) pin joint direction.
2. scalable flexible type shield according to claim 1, it is characterized in that: the main body of described upper limbs (1) and lower limb (2) is bent into by i iron, be provided with hinge engaging structure (6) between upper limbs (1) and lower limb (2), two flaps of hinge engaging structure (6) weld with upper limbs (1) and lower limb (2) respectively; Free end end at described upper limbs (1) and lower limb (2) is welded with backing plate (9).
3. scalable flexible type shield according to claim 2, it is characterized in that: a face down bonding of described upper limbs (1) and lower limb (2) is connected to and stretches out the baffle plate (5) that preseting length is used to stop gallows timber (4) slippage from the side, and baffle plate (5) is welded on the two-phase of i iron side channel on inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200235206U CN201972720U (en) | 2011-01-25 | 2011-01-25 | Telescopic flexible shield support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200235206U CN201972720U (en) | 2011-01-25 | 2011-01-25 | Telescopic flexible shield support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972720U true CN201972720U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200235206U Expired - Fee Related CN201972720U (en) | 2011-01-25 | 2011-01-25 | Telescopic flexible shield support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972720U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141504A (en) * | 2014-07-14 | 2014-11-12 | 霍忠明 | Arch-cross-section roadway tunneling support device |
| CN106761907A (en) * | 2016-12-06 | 2017-05-31 | 黑龙江科技大学 | A kind of coal mine roadway is across the device that emergency management and rescue passage is set up in falling bodies |
| CN107060847A (en) * | 2017-06-08 | 2017-08-18 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | A kind of scalable flexible hydraulic shield support of rod hinge connection type |
| 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 |
-
2011
- 2011-01-25 CN CN2011200235206U patent/CN201972720U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141504A (en) * | 2014-07-14 | 2014-11-12 | 霍忠明 | Arch-cross-section roadway tunneling support device |
| CN106761907A (en) * | 2016-12-06 | 2017-05-31 | 黑龙江科技大学 | A kind of coal mine roadway is across the device that emergency management and rescue passage is set up in falling bodies |
| CN106761907B (en) * | 2016-12-06 | 2018-09-28 | 黑龙江科技大学 | A kind of coal mine roadway is across the device for establishing emergency management and rescue channel in falling bodies |
| CN107060847A (en) * | 2017-06-08 | 2017-08-18 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | A kind of scalable flexible hydraulic shield support of rod hinge connection type |
| CN107060847B (en) * | 2017-06-08 | 2019-03-26 | 四川广旺能源发展（集团）有限责任公司机械制造分公司 | A kind of scalable flexible hydraulic shield support of connecting rod articulated type |
| 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 |
| CN108625853B (en) * | 2018-04-24 | 2020-01-07 | 山东东山矿业有限责任公司株柏煤矿 | Flexible shield support coal mining method for steep coal seam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20120125 |