CN110318332B - Coal mine underground crawler mobile air bridge device and using method - Google Patents
Coal mine underground crawler mobile air bridge device and using method Download PDFInfo
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- CN110318332B CN110318332B CN201910547584.7A CN201910547584A CN110318332B CN 110318332 B CN110318332 B CN 110318332B CN 201910547584 A CN201910547584 A CN 201910547584A CN 110318332 B CN110318332 B CN 110318332B
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- telescopic sleeve
- crawler
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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Abstract
The invention belongs to the technical field of coal mine engineering, and particularly relates to a crawler mobile air bridge device for an underground coal mine and a using method thereof. The crawler type water heater comprises a crawler driving type base, wherein a motor, a water tank, a telescopic sleeve and a fixed telescopic sleeve are arranged on the upper part of the crawler driving type base; the telescopic sleeve and the fixed telescopic sleeve are symmetrically arranged at two sides of the crawler driving type base, and the upper parts of the telescopic sleeve and the fixed telescopic sleeve are connected with the top beam; a connecting rod is connected between the extension ends of the telescopic sleeve and the fixed telescopic sleeve; the walking speed reducer is arranged at the rear end of the frame; the walking motor is arranged in the frame box body and is connected with the walking reducer; the guide tensioning device is arranged at the front end of the frame; the crawler chain is arranged on the crawler frame and is connected with the walking speed reducer and the guiding and tensioning device; the inclined bridge is arranged on the front side and the rear side of the frame and is connected with the frame through a jack; the supporting and stabilizing mechanism comprises supporting legs and supporting jacks, one ends of the supporting jacks are welded at four corners below the rack, and the supporting legs are installed at the other ends of the supporting jacks.
Description
Technical Field
The invention belongs to the technical field of coal mine engineering, and particularly relates to a crawler mobile air bridge device for an underground coal mine and a using method thereof.
Background
In the crossing place of the coal mine underground air inlet and return tunnels, in order to avoid short circuit of air flow, the air inlet and return flows are separated from each other, and an air bridge is usually required to be built, so that pedestrians and vehicles can respectively pass through the air bridge from top to bottom, and the air bridge is equivalent to an underground overpass. The construction method of the traditional wind bridge comprises the following steps: and (3) expanding the side of the spanned roadway at the intersection position of the two roadways, building a stone wall after expanding the side, placing I-steel on the wall, and laying a cover plate to serve as a construction platform for tunneling the roadway above the air bridge. When a roadway at the upper part is tunneled and passes through the air bridge, wood piles, single pillars, I-shaped steel and other reinforcing support measures are required to be erected below the air bridge so as to allow tunneling equipment to pass through. And after the tunnel at the upper part of the air bridge is tunneled and strides over the air bridge, carrying out concrete pouring and loess covering construction on the air bridge.
The traditional air bridge is a fixed building, the construction work amount is large, the period is long, a ventilation system cannot be quickly formed at the initial stage of tunneling of a tunneling working face, the temporary support measures below the air bridge can block normal air flow of a roadway in the tunneling process, great potential safety hazards exist, and the construction cost is high.
Disclosure of Invention
The invention provides a crawler belt mobile type air bridge device for an underground coal mine and a using method, which aim to solve the problems in the construction of the underground coal mine air bridge.
The invention adopts the following technical scheme: a crawler belt moving type air bridge device for an underground coal mine comprises a crawler belt driving type base, wherein a motor, a water tank, a telescopic sleeve and a fixed telescopic sleeve are arranged on the upper portion of the crawler belt driving type base; the telescopic sleeve and the fixed telescopic sleeve are symmetrically arranged at two sides of the crawler driving type base, and the upper parts of the telescopic sleeve and the fixed telescopic sleeve are connected with the top beam; a connecting rod is connected between the extension ends of the telescopic sleeve and the fixed telescopic sleeve; the crawler driving type base comprises a rack, a walking speed reducer, a walking motor, a guiding and tensioning device, a crawler chain, an inclined bridge and a supporting and stabilizing mechanism; the two sides of the rack are of a stack box type structure to form a crawler frame; the walking speed reducer is arranged at the rear end of the frame; the walking motor is arranged in the frame box body and is connected with the walking reducer; the guide tensioning device is arranged at the front end of the frame; the crawler chain is arranged on the crawler frame and is connected with the walking speed reducer and the guiding and tensioning device; the inclined bridge is arranged on the front side and the rear side of the frame and is connected with the frame through a jack; the supporting and stabilizing mechanism comprises supporting legs and supporting jacks, one ends of the supporting jacks are welded at four corners below the rack, and the supporting legs are installed at the other ends of the supporting jacks.
Furthermore, a pin shaft hole is formed in the fixed telescopic sleeve, and a limiting pin shaft used for adjusting the height is arranged in the pin shaft hole.
Further, the top beam is formed by splicing small top beams and is fixed by a pin shaft; a telescopic beam mounting rack is welded below the top beam; the telescopic beam is arranged in the telescopic beam mounting frame.
A method for using a coal mine underground crawler mobile air bridge device comprises the steps that after a stone wall is built at the cross position of two roadways, the coal mine underground crawler mobile air bridge device automatically moves to the middle position of a spanned roadway, a supporting jack of a supporting and stabilizing mechanism extends out, supporting legs fall to the ground, the stability of a base is ensured, stand columns in telescopic sleeves are lifted until a top beam supports the top, fixed telescopic sleeves are fixed through limiting pin shafts, and the fixed telescopic sleeves are mainly stressed; the jack in the telescopic beam extends out of the telescopic beam to prop against the coal wall so as to enhance the stability of the support; at the moment, the coal mine underground crawler mobile air bridge device is used as a construction platform for tunneling a tunnel at the upper part of the air bridge, tunneling equipment passes through the device to complete the penetration of the tunnel, and pedestrians and vehicles across the tunnel pass through the bridge floor through an inclined bridge during the penetration of the tunnel; after the tunnel is communicated, erecting I-shaped steel or a cover plate on the upper part of the coal mine underground crawler mobile air bridge device, and laying a rubber pad to complete the construction of the air bridge; if no vehicle passes through the roadway at the upper part of the air bridge, the self-walking function of the device is utilized to retract; if the upper roadway needs to pass, the device is withdrawn after the service of the underground coal mine crawler mobile air bridge device is over, and the next air bridge is built.
Compared with the prior art, the device provided by the invention integrates supporting and self-walking functions, after the stone wall is built, the device walks to a required position, the upright post controls the top beam to support the top, and the device can be used as a construction platform for tunneling a roadway at the upper part of the air bridge, so that the processes of placing I-steel, laying a cover plate, pouring concrete and the like in the traditional air bridge construction process are omitted, the construction quantity is greatly reduced, and the air bridge construction time is shortened. Because the device has the function of supporting, reinforcing support measures such as wood piles, single pillars and I-shaped steel do not need to be set up below the device, normal wind current of a roadway cannot be blocked in the construction process, pedestrians and vehicles can normally pass under a bridge, potential safety hazards are effectively reduced, and the working efficiency is improved. After the service of the air bridge is expired, equipment withdrawal is completed by utilizing the self-walking function, and the air bridge can be repeatedly utilized when the next air bridge is built.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic view of a track-driven base;
FIG. 3 is a schematic view of the top beam;
FIG. 4 is a schematic view of a mobile air bridge downhole arrangement;
in the figure: the method comprises the following steps of 1-track driving type base, 2-motor, 3-water tank, 4-telescopic sleeve, 5-fixed telescopic sleeve, 6-top beam, 7-connecting rod, 8-frame, 9-walking reducer, 10-walking motor, 11-guiding tension device, 12-track chain, 13-inclined bridge, 14-jack, 15-supporting stabilizing mechanism, 16-supporting leg, 17-supporting jack, 18-upright post, 19-telescopic beam mounting rack and 20-telescopic beam.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1, the coal mine underground crawler mobile air bridge device of the embodiment comprises a crawler driving type base 1; the upper part of the base is provided with a motor 2, a water tank 3, an expansion sleeve 4 and a fixed expansion sleeve 5; the upper parts of the telescopic sleeve and the fixed telescopic sleeve are connected with a top beam 6; the outer sides of the telescopic sleeve and the fixed telescopic sleeve are provided with connecting rods 7.
As shown in fig. 2, the track-driven base comprises a frame 8, a walking reducer 9, a walking motor 10, a guiding and tensioning device 11, a track chain 12, an inclined bridge 13 and a supporting and stabilizing mechanism 14; two sides of the frame 8 are of a stack box type structure to form a crawler frame; the walking speed reducer 9 is arranged at the rear end of the frame; the walking motor 10 is arranged in the frame box body and is connected with the walking reducer; the guide tensioning device 11 is arranged at the front end of the frame; the crawler chain 12 is arranged on the crawler frame and is connected with the walking speed reducer and the guiding and tensioning device; the inclined bridge 13 is connected with the rack through a jack 14 and fixed on the front side and the rear side of the rack through pin shafts; the supporting and stabilizing mechanism 15 comprises supporting legs 16 and supporting jacks 17, and the supporting and stabilizing mechanism is welded at four corners below the rack.
The two ends of the telescopic sleeve and the fixed telescopic sleeve are respectively connected with the base and the top beam, and an upright column 18 is arranged in the telescopic sleeve and plays a role in controlling the top beam to lift; the fixed telescopic sleeve is provided with a pin shaft hole, and a limiting pin shaft for adjusting the height of the sleeve is arranged in the pin shaft hole.
As shown in fig. 3, the top beam is formed by splicing small top beams and is fixed by a pin shaft; the telescopic beam mounting rack 19 is welded below the top beam; the telescoping beam 20 is mounted within the telescoping beam mount.
The working process of the air bridge device comprises the following steps: after the material stone wall is built at the cross position of the two roadways, the air bridge device automatically walks to the middle position of the spanned roadway, the supporting jack 17 of the supporting and stabilizing mechanism 15 extends out, and the supporting leg 16 falls to the ground, so that the stability of the base 1 is ensured. The upright post 18 in the telescopic sleeve 4 rises until the top beam 6 props up, the fixed telescopic sleeve 5 is fixed by a limit pin shaft, and the fixed telescopic sleeve is mainly stressed. Jacks in the telescopic beams 20 extend the telescopic beams 20 to abut against the coal wall, so that the stability of the support is enhanced. At the moment, the device can be used as a construction platform for tunneling a tunnel at the upper part of the air bridge, tunneling equipment can pass through the device to complete the penetration of the tunnel, and pedestrians and vehicles crossing the tunnel can pass through the bridge floor through the inclined bridge 13 during the penetration of the tunnel. After the roadway is communicated, I-shaped steel or a cover plate is erected on the upper portion of the device, and a rubber pad is laid, so that the construction of the air bridge is completed. If no vehicle passes through the roadway at the upper part of the air bridge, the self-walking function of the device can be utilized to retract; and if the upper roadway needs to pass through the vehicle, withdrawing the device after the service of the air bridge is expired, and utilizing the construction of the next air bridge.
Claims (1)
1. A use method of a crawler belt mobile air bridge device in a coal mine well is characterized in that: the device comprises a crawler driving type base (1), wherein a motor (2), a water tank (3), a telescopic sleeve (4) and a fixed telescopic sleeve (5) are arranged on the upper part of the crawler driving type base (1); the telescopic sleeve (4) and the fixed telescopic sleeve (5) are symmetrically arranged at two sides of the crawler driving type base (1), and the upper parts of the telescopic sleeve (4) and the fixed telescopic sleeve (5) are connected with the top beam (6); a connecting rod (7) is connected between the extending ends of the telescopic sleeve (4) and the fixed telescopic sleeve (5); the crawler driving type base (1) comprises a rack (8), a walking reducer (9), a walking motor (10), a guiding and tensioning device (11), a crawler chain (12), an inclined bridge (13) and a supporting and stabilizing mechanism (15); both sides of the rack (8) are of a stack box type structure to form a crawler frame; the walking speed reducer (9) is arranged at the rear end of the frame (8); the walking motor (10) is arranged in the box body of the frame (8) and is connected with the walking reducer (9); the guide tensioning device (11) is arranged at the front end of the frame; the crawler chain (12) is arranged on the crawler frame and is connected with the walking reducer (9) and the guiding and tensioning device (11); the inclined bridges (13) are arranged on the front side and the rear side of the rack, and the inclined bridges (13) are connected with the rack (8) through jacks (14); the supporting and stabilizing mechanism (15) comprises supporting legs (16) and supporting jacks (17), one ends of the supporting jacks (17) are welded at four corners below the rack, and the supporting legs (16) are mounted at the other ends of the supporting jacks (17); a pin shaft hole is formed in the fixed telescopic sleeve (5), and a limiting pin shaft for adjusting the height is arranged in the pin shaft hole; the top beam (6) is formed by splicing small top beams and is fixed by a pin shaft; a telescopic beam mounting rack (19) is welded below the top beam; the telescopic beam (20) is arranged in the telescopic beam mounting frame (19); after a stone wall is built at the cross position of two roadways, the underground coal mine crawler mobile air bridge device automatically moves to the middle position of a spanned roadway, a supporting jack (17) of a supporting and stabilizing mechanism (15) extends out, a supporting leg (16) falls to the ground to ensure the stability of a base (1), an upright post (18) in a telescopic sleeve (4) rises until a top beam (6) props up, a fixed telescopic sleeve (5) is fixed by a limiting pin shaft, and the fixed telescopic sleeve (5) is mainly stressed; a jack in the telescopic beam (20) extends the telescopic beam (20) to prop against the coal wall so as to enhance the stability of the support; at the moment, the coal mine underground crawler mobile air bridge device is used as a construction platform for tunneling a tunnel at the upper part of the air bridge, tunneling equipment passes through the device to complete the penetration of the tunnel, and pedestrians and vehicles across the tunnel pass through the bridge floor through an inclined bridge (13) during the penetration of the tunnel; after the tunnel is communicated, erecting I-shaped steel or a cover plate on the upper part of the coal mine underground crawler mobile air bridge device, and laying a rubber pad to complete the construction of the air bridge; if no vehicle passes through the roadway at the upper part of the air bridge, the self-walking function of the device is utilized to retract; if the upper roadway needs to pass, the device is withdrawn after the service of the underground coal mine crawler mobile air bridge device is over, and the next air bridge is built.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547584.7A CN110318332B (en) | 2019-06-24 | 2019-06-24 | Coal mine underground crawler mobile air bridge device and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547584.7A CN110318332B (en) | 2019-06-24 | 2019-06-24 | Coal mine underground crawler mobile air bridge device and using method |
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| Publication Number | Publication Date |
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| CN110318332A CN110318332A (en) | 2019-10-11 |
| CN110318332B true CN110318332B (en) | 2021-05-14 |
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| CN201910547584.7A Active CN110318332B (en) | 2019-06-24 | 2019-06-24 | Coal mine underground crawler mobile air bridge device and using method |
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Citations (9)
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|---|---|---|---|---|
| DE3039577A1 (en) * | 1979-10-26 | 1981-05-07 | Centrum Konstrukcyjno-Technologiczne Maszyn Górniczych Komag, Gliwice | PIT SHIELD REMOVAL |
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2019
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| CN208250892U (en) * | 2018-04-19 | 2018-12-18 | 中建交通建设集团有限公司 | A kind of stable type trestle work structure |
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