CN203321559U - Forepoling supporting device for steep soft coal seam roadway tunneling - Google Patents
Forepoling supporting device for steep soft coal seam roadway tunneling Download PDFInfo
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- CN203321559U CN203321559U CN2013203036909U CN201320303690U CN203321559U CN 203321559 U CN203321559 U CN 203321559U CN 2013203036909 U CN2013203036909 U CN 2013203036909U CN 201320303690 U CN201320303690 U CN 201320303690U CN 203321559 U CN203321559 U CN 203321559U
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Abstract
The utility model discloses a forepoling supporting device for steep soft coal seam roadway tunneling. The forepoling supporting device comprises a supporting tray with one end stretching into to the lower portion of soft coal, the supporting tray comprises two supporting beams, and supporting face plates are arranged on the two supporting beams. The outer ends of the two supporting beams are arranged in the arch-shaped grooves of two arch-shaped hooks respectively, the arch-shaped grooves of the two arch-shaped hooks are inclined upwards, the arch back portions of the two arch-shaped hooks are used for preventing the supporting beams from laterally sliding, and threaded climbing mechanisms used for jacking the two supporting beams are arranged on the two arch-shaped hooks. The arch-shaped hooks are hung on hanging seats, and safety devices used for preventing the arch-shaped hooks from slipping are arranged between the arch-shaped hooks and the hanging seats. The two hanging seats are arranged on the two sides of the top end of a coal roadway, the hanging seats are fixed to anchor rods through threaded fastening pieces, and the other ends of the anchoring rods are anchored on a rock mass. The forepoling supporting device has the advantages of ensuring tunneling safety, improving tunneling efficiency, lowering supporting operation difficulty and supporting cost, and being simple in structure, convenient to operate, low in labor intensity and low in using and maintenance cost.
Description
Technical field
The utility model relates to a kind of weak seam Roadway Support Technology, the forepoling support device that particularly temporary lining of a kind of inclined loose Coal roadway driving is used.
Background technology
In coal road before the coal mining operation or half coal road driving, usually adopt the tunneling method of circulation, every driving one end setpoint distance, as a circulation, after a circulation has been tunneled, then carries out permanent supporting to tunnel.For weak seam, because the coal seam autostability is poorer, when single cycle operation does not also all complete, top, tunnel weak seam just may collapse and emit, and not only has potential safety hazard, but also can bring the reduction of drivage efficiency.Coal seam is softer coal seam just more easily occurs to be collapsed and emits accident, and particularly, when driving inclined loose heading, its problem is particularly outstanding.For guaranteeing driving safety and improving drivage efficiency, need to implement temporary lining to weak seam.The applicant has applied for that on August 17th, 2012 a kind of name is called " weak seam tunneling advance device ", and this application has been awarded patent right and has given simultaneously and announce on February 13rd, 2013, and its notification number is CN202731961U.This device comprises track, the small rail car be located in coal road, is provided for the cantilever type support of temporary lining on dolly, and support is realized lifting by oil cylinder, also is provided with anti-tilting apparatus on dolly, utilizes this device can conveniently realize leading temporary lining.But progressively find in actual application, this apparatus structure is more complicated, and manufacturing cost is higher, and hydraulic system need be set, operates more loaded down with trivial details and need certain operation skill to guarantee to use safety., need to be improved this for this reason, to reduce manufacturing cost and use cost, be simplified procedures, be reduced operation easier, be beneficial to apply more widely.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of in inclined loose Coal roadway tunneling process the front-probe support method for preventing that coal seam from collapsing and emitting, to simplify procedures, to reduce operation easier, simultaneously, guarantee driving safety and improve drivage efficiency, reducing supporting operation easier and support cost.
For realizing aforementioned purpose, the utility model adopts following technical scheme.
A kind of inclined loose Coal roadway driving forepoling support device, comprise that an end stretches into the supporting pallet of soft coal body below, the supporting pallet comprises two independently brace summer or the support frames that formed by two brace summers, at two, independently on brace summer or support frame, is provided with a protection slab; Two brace summer outer ends lay respectively in the arc fluting of two arc hooks, and the arc fluting of two arc hooks is obliquely, and break away for limiting brace summer in its hunchbacked position, and two arc hooks are provided with the screw thread lifting body for jacking two brace summers; Arc hook is mounted on that to articulate seat upper, and arc hook and articulating between seat is provided with the safeties for the quick fixation structure that prevents described arc hook slippage; Two articulate seat is positioned at both sides, coal road top, articulates seat and is fixed on anchor pole by threaded fastener, and the anchor pole other end stretches into lithosphere and is anchored on rock mass.
Adopt the utility model device of technique scheme, owing to only being provided with the supporting pallet, articulating seat, anchor pole and arc hook, do not need small rail car, hydraulic system etc. are set, it is simple in structure, easy to operate, and operative skill requires low.
Preferred technical scheme, the described seat that articulates forms by being welded to each other fixing backing plate and i iron, and backing plate is for being supported on the roof of coal road, and backing plate is connected on the I-shaped outer wall of i iron; Described threaded fastener comprises the backing plate with interior concave spherical surface and has the Ball faced nut of evagination sphere.
Preferred technical scheme, described arc hook comprises the hanger bulk by channel steel support, welding one upper arm vertically overhang on the bottom land outside wall surface of hanger bulk upper end, upper arm is for being overlapped on the I-shaped crossbeam of described i iron; The upper arm below also is provided with an anti-tipping arm, and anti-tipping arm is positioned at the I-shaped crossbeam below of i iron, in order to prevent arc hook, tumbles.
Preferred technical scheme, described safeties are safety plug formula quick fixation structure.With simplified structure, reduce operation easier and manufacture, use cost.
Further preferred technical scheme, described safeties comprise the support plate that lays respectively at described i iron both sides, two support plate one ends are weldingly fixed on the bottom land outside wall surface of hanger bulk, the free end of two support plates stretches out the i iron far-end, on the free end of two support plates, is provided with for the perforation of cross-under screw rod or bearing pin to form safety plug formula quick fixation structure.
Preferred technical scheme, described screw thread lifting body comprises the screw rod be screwed on arc hook lower horizontal wallboard, and the screw rod lower end is provided with horizontal through hole, between screw rod upper end and brace summer, is provided with cushion cover, and cushion cover is actively socketed on screw rod.By through hole cross-under turning handle, to be used for pulling screw rod, cushion cover, due to the contact surface increased between screw rod and brace summer, to increase frictional resistance, prevents the brace summer slippage; Simultaneously, cushion cover is actively socketed on screw rod can reduce the frictional resistance between cushion cover and screw rod, reduces manipulation strength.
When digging laneway in weak seam; first by the tunnel design section; top, tunnel weak seam is excavated to a little space; then utilize suspension device of the present utility model that the weak seam supporting is good; make weak seam under the protection of the utility model suspension device; coal seam, digging laneway middle and lower part, effectively prevented that weak seam from preventing in the tunnelling process that coal seam from collapsing and emitting accident.After the drift section of a circulation has been constructed, carry out tunnel permanent support operation, after the tunnel permanent support completes, remove the weak seam temporary support device for drivage, start to carry out next cycle operation.
The utility model beneficial effect compared with prior art is, when guaranteeing driving safety and improving drivage efficiency, to reduce supporting operation easier and support cost; And suspension device is simple in structure, easy to operate, labour intensity is low, and the operation and maintenance cost is low.
The accompanying drawing explanation
Fig. 1 is structural representation axonometric drawing of the present utility model.
Fig. 2 is part-structure schematic diagram of the present utility model.
Fig. 3 is the A section enlarged drawing in the utility model Fig. 1.
The specific embodiment
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.
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of inclined loose Coal roadway driving forepoling support device, comprise that an end stretches into the supporting pallet of soft coal body below, the supporting pallet comprises two independently brace summer 6 or the support frames that formed by two brace summers 6, at two, independently on brace summer 6 or support frame, is provided with a protection slab 8; Two brace summer 6 outer ends lay respectively in the arc fluting of two arc hooks 4, the arc fluting of two arc hooks 4 is obliquely, break away for limiting brace summer 6 in its hunchbacked position, two arc hooks 4 are provided with the screw thread lifting body 7 for jacking two brace summers 6; Arc hook 4 is mounted on and articulates on seat 3, arc hook 4 with articulate 3 between be provided with one for preventing the safeties 5 of described arc hook 4 slippages; Two articulate seat 3 is positioned at coal road 1 both sides, top, articulates seat 3 and is fixed on anchor pole 2 by threaded fastener, and anchor pole 2 other ends stretch into lithosphere and are anchored on rock mass.
The described seat 3 that articulates is by being welded to each other fixing backing plate 31 and i iron 32 forms, and backing plate 31 is for being supported on the roof of coal road 1, and backing plate 31 is connected on the I-shaped outer wall of i iron 32; Described threaded fastener comprises the backing plate 33 with interior concave spherical surface and the Ball faced nut 34 with evagination sphere.
Described arc hook 4 comprises the hanger bulk 41 by channel steel support, welding one upper arm vertically overhang 42 on the bottom land outside wall surface of hanger bulk 41 upper ends, and upper arm 42 is for being overlapped on the I-shaped crossbeam of described i iron 32; Upper arm 42 belows also are provided with an anti-tipping arm 43, and anti-tipping arm 43 is positioned at the I-shaped crossbeam below of i iron 32.
Described safeties comprise that 5 lay respectively at the support plate 44 of described i iron 32 both sides, two support plate 44 1 ends are weldingly fixed on the bottom land outside wall surface of hanger bulk 41, the free end of two support plates 44 stretches out i iron 32 far-ends, be provided with the perforation 44a for cross-under screw rod or bearing pin on the free end of two support plates 44, to form safety plug formula quick fixation structure.Not shown screw rod or bearing pin.
Described screw thread lifting body 7 comprises the screw rod 71 be screwed on arc hook 4 lower horizontal wallboards, and screw rod 71 lower ends are provided with horizontal through hole 71a, between screw rod 71 upper ends and brace summer 6, are provided with cushion cover 72, and cushion cover 72 is actively socketed on screw rod 71.
Although embodiment of the present utility model has been described by reference to the accompanying drawings above, but those of ordinary skill in the art also can recognize in the scope to claims and make various variations or modification, these modifications and variations are interpreted as within scope of the present utility model and intention.
Claims (6)
1. an inclined loose Coal roadway tunnels forepoling support device, comprise that an end stretches into the supporting pallet of soft coal body below, it is characterized in that, the supporting pallet comprises two independently brace summer (6) or the support frames that formed by two brace summers (6), at two, independently on brace summer (6) or support frame, is provided with a protection slab (8); Two brace summers (6) outer end lays respectively in the arc fluting of two arc hooks (4), the arc fluting of two arc hooks (4) is obliquely, break away for limiting brace summer (6) in its hunchbacked position, two arc hooks (4) are provided with the screw thread lifting body (7) for jacking two brace summers (6); Arc hook (4) is mounted on that to articulate seat (3) upper, and arc hook (4) is provided with one for preventing the safeties (5) of described arc hook (4) slippage with articulating between (3); Two articulate seat (3) is positioned at coal road (1) both sides, top, articulates seat (3) and is fixed in anchor pole (2) above by threaded fastener, and anchor pole (2) other end stretches into lithosphere and is anchored on rock mass.
2. inclined loose Coal roadway according to claim 1 tunnels forepoling support device, it is characterized in that, the described seat (3) that articulates is by being welded to each other fixing backing plate (31) and i iron (32) forms, backing plate (31) is for being supported on the roof of coal road (1), and backing plate (31) is connected on the I-shaped outer wall of i iron (32); Described threaded fastener comprises the backing plate (33) with interior concave spherical surface and the Ball faced nut (34) with evagination sphere.
3. inclined loose Coal roadway according to claim 2 tunnels forepoling support device, it is characterized in that, described arc hook (4) comprises the hanger bulk (41) by channel steel support, welding one upper arm vertically overhang (42) on the bottom land outside wall surface of hanger bulk (41) upper end, upper arm (42) is for being overlapped on the I-shaped crossbeam of described i iron (32); Upper arm (42) below also is provided with an anti-tipping arm (43), and anti-tipping arm (43) is positioned at the I-shaped crossbeam below of i iron (32).
4. inclined loose Coal roadway driving forepoling support device according to claim 2, is characterized in that, described safeties (5) are safety plug formula quick fixation structure.
5. inclined loose Coal roadway according to claim 4 tunnels forepoling support device, it is characterized in that, described safeties (5) comprise the support plate (44) that lays respectively at described i iron (32) both sides, two support plate (44) one ends are weldingly fixed on the bottom land outside wall surface of hanger bulk (41), the free end of two support plates (44) stretches out i iron (32) far-end, is provided with the perforation (44a) for cross-under screw rod or bearing pin on the free end of two support plates (44).
6. inclined loose Coal roadway according to claim 1 tunnels forepoling support device, it is characterized in that, described screw thread lifting body (7) comprises the screw rod (71) be screwed on arc hook (4) lower horizontal wallboard, screw rod (71) lower end is provided with horizontal through hole (71a), be provided with cushion cover (72) between screw rod (71) upper end and brace summer (6), cushion cover (72) is actively socketed on screw rod (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203036909U CN203321559U (en) | 2013-05-20 | 2013-05-20 | Forepoling supporting device for steep soft coal seam roadway tunneling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203036909U CN203321559U (en) | 2013-05-20 | 2013-05-20 | Forepoling supporting device for steep soft coal seam roadway tunneling |
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| Publication Number | Publication Date |
|---|---|
| CN203321559U true CN203321559U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203036909U Expired - Fee Related CN203321559U (en) | 2013-05-20 | 2013-05-20 | Forepoling supporting device for steep soft coal seam roadway tunneling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306694A (en) * | 2013-05-20 | 2013-09-18 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Cantilever support method and device for heavy-pitch soft coal seam in roadway excavation |
-
2013
- 2013-05-20 CN CN2013203036909U patent/CN203321559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306694A (en) * | 2013-05-20 | 2013-09-18 | 四川省华蓥山煤业股份有限公司李子垭南煤矿 | Cantilever support method and device for heavy-pitch soft coal seam in roadway excavation |
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| Date | Code | Title | Description |
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| 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: 20131204 Termination date: 20140520 |