CN204098943U - A kind of large-inclination-angle coal bed fully mechanized mining supporter - Google Patents
A kind of large-inclination-angle coal bed fully mechanized mining supporter Download PDFInfo
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- CN204098943U CN204098943U CN201420488908.7U CN201420488908U CN204098943U CN 204098943 U CN204098943 U CN 204098943U CN 201420488908 U CN201420488908 U CN 201420488908U CN 204098943 U CN204098943 U CN 204098943U
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Abstract
The utility model discloses a kind of large-inclination-angle coal bed fully mechanized mining supporter, this fully mechanized mining supporter is made up of in pairs the first hydraulic support and the second hydraulic support, first hydraulic support is positioned at above the second hydraulic support, and its rear end is provided with the gear cash device increased and decreased with the back timber lifting of the first hydraulic support in the gear cash amplitude of short transverse, and gear cash device has the gear cash width extending to the second hydraulic support stand width.Preferred gear cash device is made up of upper gear cash wall and lower waster rock blocking wall, and the two is hinged on the upper connecting rod upper and lower side of the first hydraulic support respectively; And upper gear cash wall and lower waster rock blocking wall all form hydraulically extensible structure, wherein, standing part and telescopic section all have sheet material bending forming, and form dovetail slideway auxiliary structure therebetween.The beneficial effects of the utility model are, when underlying holder moves, effectively can prevent goaf from invading supporting region, eliminate the hidden danger of support system instability.
Description
Technical field
The utility model relates to underground coal mine comprehensive mechanical coal mining technology, particularly a kind of large-inclination-angle coal bed fully mechanized mining supporter.
Background technology
Large-inclination-angle coal bedly refer to that inclination angle is 35 ~ 45 ° of coal seams, it has distributed more widely, the feature such as occurrence condition is complicated, exploitation difficulty is large in China.Because existing production technique falls behind, and domestic mine quantity is many.Therefore, in recent years, China there occurs a lot of major accident.For reducing and stopping coal mining security incident, at present, combine technology of adopting to obtain applying more and more widely in mining steeply dipping coal seam.The shielding of fully-mechanized mining working is all that the support system formed by multiple hydraulic shield support is realized, and each hydraulic support rear end is provided with gear cash device, is slipped to shielding region to prevent goaf spoil.Hydraulic support of the prior art all forms an independently supporting section and gear cash section correspondingly, in stent advancement process or advance after, spoil also can move forward thereupon.But when adjacent stent not yet advances, the spoil of reach can form the obstruction advanced adjacent stent naturally, causes and advances difficulty.Therefore, for reducing this obstruction, the existing propulsion mode of support is that work plane is carried out segmentation, and each section is screened by several hydraulic support, and during propelling, the shield support in same section advances simultaneously, and the shield support in whole work plane advances piecemeal.But adopt this propulsion mode, after advancing at one section, multiple shield supports of next section need to bear the impact that adjacent the preceding paragraph advances rear numerous spoil landing, easily cause the impact failure of the entirety downslide of next section of shield support or the shield support of this section of the top.For this reason, need to improve this.
Summary of the invention
The purpose of this utility model is exactly for the deficiencies in the prior art, a kind of large-inclination-angle coal bed fully mechanized mining supporter is provided, this fully mechanized mining supporter is made up of in pairs upper and lower hydraulic support, top hydraulic support has the gear cash width extending to underlying holder width, when moving to prevent underlying holder, goaf invades supporting region, eliminates the hidden danger of support system instability.
For achieving the above object, the utility model adopts following technical scheme.
A kind of large-inclination-angle coal bed fully mechanized mining supporter, this fully mechanized mining supporter is made up of in pairs the first hydraulic support and the second hydraulic support, first hydraulic support is positioned at above the second hydraulic support, the rear end of the first hydraulic support is provided with gear cash device, the structure that the gear cash amplitude that this gear cash device has short transverse increases and decreases with the back timber lifting of the first hydraulic support, and there is the gear cash width extending to the second hydraulic support stand width.
Adopt the fully mechanized mining supporter of this programme, formed in pairs by two hydraulic supports, the structure that the gear cash amplitude that the hydraulic support being positioned at top is provided with short transverse increases and decreases with the back timber lifting of the first hydraulic support, and there is the gear cash width extending to the second hydraulic support stand width.Therefore, in support passing process, when the reach of the second hydraulic support, the spoil in its goaf, rear is stopped by the gear cash device on the first hydraulic support, thus avoid spoil landing to hydraulic support stand region, eliminate and move spoil in frame process and fall to the impact of hydraulic support and extruding, effectively can reduce support downslide hidden danger.In addition, adjacent stent is staggered to be passed, and the sliding force of traversing carriage is born by adjacent stent, multiple backing positions dispersion being in non-moving state, thus improves supporting stability by the mode increasing supporting surface.
Preferably, described gear cash device is made up of upper gear cash wall and lower waster rock blocking wall, upper gear cash wall is hinged on upper small end hinged with back timber on described first hydraulic support, lower waster rock blocking wall is hinged on the lower end of connecting rod on this, lower waster rock blocking wall is positioned at gear cash wall front, when the back timber of the first hydraulic support forms supporting to coal-face top board, upper gear cash wall and lower waster rock blocking wall in height have overlapping gear cash part.The upper end of upper gear cash wall and lower waster rock blocking wall is hinged on the two ends up and down of connecting rod respectively, and those skilled in the art can utilize connecting rod, support etc. as the spacing barrier structure of the free end of upper gear cash wall and lower waster rock blocking wall naturally, to form the reliable stop to spoil; The upper end of upper gear cash wall and lower waster rock blocking wall is hinged on the two ends up and down of connecting rod respectively, in order to guarantee when upper connecting rod is elevated with back timber, between upper gear cash wall and lower waster rock blocking wall, and the miscellaneous part of upper gear cash wall and lower waster rock blocking wall and hydraulic support does not occur interference, guarantee use safety, reliable.
Preferred further, described upper gear cash wall is made up of upper fixed stop cash wall and upper flexible gear cash wall, upper fixed stop cash wall is connected on described upper connecting rod, be formed with guideway structure between upper fixed stop cash wall and upper flexible gear cash wall, between upper fixed stop cash wall and upper flexible gear cash wall, be connected with telescopic oil cylinder; Described lower waster rock blocking wall is made up of lower fixed stop cash wall and lower flexible gear cash wall, lower fixed stop cash wall is connected to described upper connecting rod lower end, be formed with guideway structure between lower fixed stop cash wall and lower flexible gear cash wall, between lower fixed stop cash wall and lower flexible gear cash wall, be connected with lower telescopic oil cylinder.To make gear cash wall form the flexible hydraulically extensible structure in left and right, be in contraction state to keep off cash wall in the transportation of the first hydraulic support, thus save transport space, reduce cost of transportation, improve the convenience of transport.
Fixed gear cash wall and upper flexible gear cash wall are shaped by sheet material bending, and the guideway structure formed between upper fixed stop cash wall and upper flexible gear cash wall is that dovetail slideway is secondary.Upper fixed stop cash wall and upper flexible gear cash wall are shaped by sheet material bending, and form dovetail slideway auxiliary structure therebetween, can guarantee easy to make, simultaneously, those skilled in the art can make full use of the cross spacing structure of the guideway structure of swallow-tail form, transverse shear stress power suffered on flexible gear cash wall is reliably delivered on fixed stop cash wall, guarantees the gear cash reliability of upper flexible gear cash wall.
Described lower fixed stop cash wall and lower flexible gear cash wall bend by sheet material and are shaped, and the guideway structure formed between lower fixed stop cash wall and lower flexible gear cash wall is that dovetail slideway is secondary.Lower fixed stop cash wall and lower flexible gear cash wall bend by sheet material and are shaped, and form dovetail slideway auxiliary structure therebetween, can guarantee easy to make, simultaneously, those skilled in the art can make full use of the cross spacing structure of the guideway structure of swallow-tail form, transverse shear stress power suffered on lower flexible gear cash wall is reliably delivered on lower fixed stop cash wall, guarantees the gear cash reliability of lower flexible gear cash wall.
The utility model beneficial effect is compared with prior art, fully mechanized mining supporter is made up of in pairs upper and lower two hydraulic supports, the gear cash device that top hydraulic support is arranged is also to the stop of underlying holder rear spoil, when underlying holder moves, effectively can prevent goaf from invading supporting region, eliminate the hidden danger of support system instability.
Accompanying drawing explanation
Fig. 1 is the Inclined Full-mechanized Mining Face top view of application the utility model fully mechanized mining supporter.
Fig. 2 is the structural representation of the first hydraulic support being located at top in the utility model.
Fig. 3 is upper gear cash wall schematic diagram in the utility model.
Meanwhile, the Fig. 3 in the utility model is also for illustration of the structure of gear cash wall, and in the utility model, lower waster rock blocking wall is identical with upper gear cash wall construction, and the cash of the fixed stop up and down wall in the two, up and down flexible gear cash wall and up and down telescopic oil cylinder are relation one to one.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described, but therefore the utility model is not limited among described scope of embodiments.
See Fig. 1, Fig. 2, Fig. 3, a kind of large-inclination-angle coal bed fully mechanized mining supporter, this fully mechanized mining supporter is made up of in pairs the first hydraulic support 1 and the second hydraulic support 2, first hydraulic support 1 is positioned at above the second hydraulic support 2, the rear end of the first hydraulic support 1 is provided with gear cash device, gear cash device is made up of upper gear cash wall and lower waster rock blocking wall, upper gear cash wall is hinged on upper connecting rod 12 upper end hinged with back timber 11 on described first hydraulic support 1, lower waster rock blocking wall is hinged on the lower end of connecting rod 12 on this, lower waster rock blocking wall is positioned at gear cash wall front, when back timber 11 pairs of coal-face top boards of the first hydraulic support 1 form supporting, upper gear cash wall and lower waster rock blocking wall in height have overlapping gear cash part, thus form the gear cash amplitude of gear cash device in short transverse and be elevated with the back timber 11 of the first hydraulic support 1 and increase and decrease, wherein, upper gear cash wall is made up of upper fixed stop cash wall 31 and upper flexible gear cash wall 32, upper fixed stop cash wall 31 is connected on described upper connecting rod 12, be formed with guideway structure between upper fixed stop cash wall 31 and upper flexible gear cash wall 32, between upper fixed stop cash wall 31 and upper flexible gear cash wall 32, be connected with telescopic oil cylinder 3, described lower waster rock blocking wall is made up of lower fixed stop cash wall 41 and lower flexible gear cash wall 42, lower fixed stop cash wall 41 is connected to described upper connecting rod 12 lower end, be formed with guideway structure between lower fixed stop cash wall 41 and lower flexible gear cash wall 42, between lower fixed stop cash wall 41 and lower flexible gear cash wall 42, be connected with lower telescopic oil cylinder 4, and then formation gear cash device has the gear cash width extending to the second hydraulic support 2 supporting width, upper fixed stop cash wall 31 and upper flexible gear cash wall 32 are shaped by sheet material bending, and the guideway structure formed between upper fixed stop cash wall 31 and upper flexible gear cash wall 32 is that dovetail slideway is secondary, lower fixed stop cash wall 41 bends by sheet material with lower flexible gear cash wall 42 and is shaped, and the guideway structure formed between lower fixed stop cash wall 41 and lower flexible gear cash wall 42 is that dovetail slideway is secondary, by by the broadside of dovetail towards spoil direction, and the position upper fixed stop cash wall 31 and lower fixed stop cash wall 41 are arranged near spoil, be delivered to upper fixed stop cash wall 31 and lower fixed stop cash wall 41 from the lateral force making spoil to upper flexible gear cash wall 32 and lower flexible gear cash wall 42 respectively by dovetail slideway pair, guarantee the gear cash reliability and stability of upper flexible gear cash wall 32 and lower flexible gear cash wall 42.
In the present embodiment, also by by the narrow limit of dovetail towards spoil direction, and the position upper flexible gear cash wall 32 and lower flexible gear cash wall 42 are arranged near spoil, be delivered to upper fixed stop cash wall 31 and lower fixed stop cash wall 41 from the lateral force making spoil to upper flexible gear cash wall 32 and lower flexible gear cash wall 42 respectively by dovetail slideway pair, guarantee the gear cash reliability and stability of upper flexible gear cash wall 32 and lower flexible gear cash wall 42.
Utilize the supporting method of the utility model support, comprise the following steps:
S1, laying shield support: multiple aforesaid large-inclination-angle coal bed fully mechanized mining supporter is set in large-inclination-angle coal bed fully-mechanized mining working, the gear cash device of the first hydraulic support 1 rear end is made to be positioned at the second hydraulic support 2 rear, and the stop formed the first hydraulic support 1 and the second goaf, hydraulic support 2 rear spoil, and respectively the first hydraulic support 1 is connected with the scraper-trough conveyer 6 of coal excavation apparatus with the second hydraulic support 2 by propelling cylinder 5;
S2, supporting: respectively by the back timber 3 of elevating ram lifting first hydraulic support 1 and the second hydraulic support 2, make the first hydraulic support 1 and the second hydraulic support 2 form the supporting of large-inclination-angle coal bed fully-mechanized mining working;
S3, pushing and sliding: the scraper-trough conveyer 6 utilizing the propelling cylinder 5 on the first hydraulic support 1 and the second hydraulic support 2 to implement coal excavation apparatus advances setpoint distance;
S4, move frame: the supporting state removing the second hydraulic support 2, propelling cylinder 5 is utilized to pull the second hydraulic support 2 to proceed to setpoint distance, and after making the second hydraulic support 2 form supporting state by elevating ram, remove the supporting state of the first hydraulic support 1, utilize propelling cylinder 5 to pull the first hydraulic support 1 to proceed to setpoint distance, and make the first hydraulic support 1 form supporting state by elevating ram.
When work plane needs to advance, repeat step S3 and S4.
Lay in supporting method in the step of shield support, if when the upper flexible gear cash wall 32 in gear cash device and lower flexible gear cash wall 42 are in contraction state, after the first hydraulic support 1 has been laid, also need upper flexible gear cash wall 32 and lower flexible gear cash wall 42 level to stretch out, form stop to the first hydraulic support 1 and the second goaf, hydraulic support 2 rear spoil to make gear cash device.
Embodiment of the present utility model is drawings described although combine above, but those of ordinary skill in the art also can recognize in the scope to claims and makes various change or amendment, these modifications and variations are interpreted as within scope of the present utility model and intention.
Claims (5)
1. a large-inclination-angle coal bed fully mechanized mining supporter, it is characterized in that, this fully mechanized mining supporter is made up of in pairs the first hydraulic support (1) and the second hydraulic support (2), first hydraulic support (1) is positioned at the second hydraulic support (2) top, the rear end of the first hydraulic support (1) is provided with gear cash device, the structure that the gear cash amplitude that this gear cash device has short transverse increases and decreases with back timber (11) lifting of the first hydraulic support (1), and there is the gear cash width extending to the second hydraulic support (2) supporting width.
2. large-inclination-angle coal bed fully mechanized mining supporter according to claim 1, it is characterized in that, described gear cash device is made up of upper gear cash wall and lower waster rock blocking wall, upper gear cash wall is hinged on upper connecting rod (12) upper end that described first hydraulic support (1) is upper and back timber (11) is hinged, lower waster rock blocking wall is hinged on the lower end of connecting rod on this (12), lower waster rock blocking wall is positioned at gear cash wall front, when back timber (11) in the first hydraulic support (1) forms supporting to coal-face top board, upper gear cash wall and lower waster rock blocking wall in height have overlapping gear cash part.
3. large-inclination-angle coal bed fully mechanized mining supporter according to claim 2, it is characterized in that, described upper gear cash wall is made up of upper fixed stop cash wall (31) and upper flexible gear cash wall (32), upper fixed stop cash wall (31) is connected on described upper connecting rod (12), be formed with guideway structure between upper fixed stop cash wall (31) and upper flexible gear cash wall (32), between upper fixed stop cash wall (31) and upper flexible gear cash wall (32), be connected with telescopic oil cylinder (3); Described lower waster rock blocking wall is made up of lower fixed stop cash wall (41) and lower flexible gear cash wall (42), lower fixed stop cash wall (41) is connected to described upper connecting rod (12) lower end, be formed with guideway structure between lower fixed stop cash wall (41) and lower flexible gear cash wall (42), between lower fixed stop cash wall (41) and lower flexible gear cash wall (42), be connected with lower telescopic oil cylinder (4).
4. large-inclination-angle coal bed fully mechanized mining supporter according to claim 3, it is characterized in that, fixed gear cash wall (31) and upper flexible gear cash wall (32) are shaped by sheet material bending, and the guideway structure formed between upper fixed stop cash wall (31) and upper flexible gear cash wall (32) is that dovetail slideway is secondary.
5. large-inclination-angle coal bed fully mechanized mining supporter according to claim 3, it is characterized in that, described lower fixed stop cash wall (41) and lower flexible gear cash wall (42) bend by sheet material and are shaped, and the guideway structure formed between lower fixed stop cash wall (41) and lower flexible gear cash wall (42) is that dovetail slideway is secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488908.7U CN204098943U (en) | 2014-08-21 | 2014-08-21 | A kind of large-inclination-angle coal bed fully mechanized mining supporter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488908.7U CN204098943U (en) | 2014-08-21 | 2014-08-21 | A kind of large-inclination-angle coal bed fully mechanized mining supporter |
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| CN204098943U true CN204098943U (en) | 2015-01-14 |
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| CN201420488908.7U Expired - Fee Related CN204098943U (en) | 2014-08-21 | 2014-08-21 | A kind of large-inclination-angle coal bed fully mechanized mining supporter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213929A (en) * | 2014-08-21 | 2014-12-17 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Large-inclination-angle coal bed fully-mechanized mining bracket and support method |
-
2014
- 2014-08-21 CN CN201420488908.7U patent/CN204098943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213929A (en) * | 2014-08-21 | 2014-12-17 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Large-inclination-angle coal bed fully-mechanized mining bracket and support method |
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| 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: 20150114 Termination date: 20150821 |
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| EXPY | Termination of patent right or utility model |