CN102704962B - Shed upper beam device of I-beam shed for coal mine laneway - Google Patents
Shed upper beam device of I-beam shed for coal mine laneway Download PDFInfo
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- CN102704962B CN102704962B CN201210203206.5A CN201210203206A CN102704962B CN 102704962 B CN102704962 B CN 102704962B CN 201210203206 A CN201210203206 A CN 201210203206A CN 102704962 B CN102704962 B CN 102704962B
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- shaped steel
- arm
- hook arm
- steel shack
- upper beam
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- 239000003245 coal Substances 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 60
- 239000010959 steel Substances 0.000 claims description 60
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 210000000744 eyelid Anatomy 0.000 claims description 8
- 241000196324 Embryophyta Species 0.000 description 12
- 238000005065 mining Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a shed upper beam device of an I-beam shed for a coal mine laneway, which includes a cantilever, wherein the cantilever is arranged in a sleeve; the sleeve is hung on an erected I-beam shed upper beam through a fixator; a propulsion support is hung on the erected I-beam shed upper beam; the rear end of the cantilever is connected with the propulsion support through a propulsion device; the front end of the cantilever is hinged with the rear end of a height adjusting arm; the height adjusting arm adopts a hollow structure, and is internally provided with a width adjusting device, a connecting rod and an outrigger device; the rear end of the width adjusting device is fixed with the inner bottom surface of the height adjusting arm; the front end of the width adjusting device is connected with one end of the connecting rod through a width universal joint; the other end of the connecting rod is fixed with the outrigger device; and the bottom of the height adjusting arm is connected with the front lower part of the cantilever through a height adjusting device. The I-beam shed upper beam can be installed through firstly adjusting the mounting position of the I-beam shed upper beam through the width adjusting device and the height adjusting device, and finally through manually fixing the I-beam shed upper beam.
Description
Technical field
The invention belongs to coal mine roadway erecting tools technical field, be specifically related to a kind of frame canopy beaming device used when setting up the H shaped steel shack of coal mine roadway.
Background technology
Along with the increase year by year of coal demand, and the minimizing year by year of coal resources, coal mining company is had to some features as poor geologic conditions of exploitation target diversion, geographical environment is complicated, the coalfield that exploitation difficulty is larger, some large enterprises even start to exploit the coalfield under thousands of rice, the increase of exploitation difficulty brings larger potential safety hazard must to exploitation work, simultaneously, to coal mining, country requires that many upper equipment goes up people less, improve the mechanization degree of exploitation, ensure the safety of exploitation personnel as much as possible, for achieving the above object, the equipment that existing coal mining Job engagement is a large amount of.
Tunnel is the necessary passage of coal mining mine, it is the passage tunneled for coal lifting, transport, ventilation, draining, power supply etc., along with the intensification of mining depth, the supporting intensity in tunnel must be strengthened, the H shaped steel shack supporting that the supporting in existing tunnel adopts 11# i iron to form mostly, but along with the intensification of mining depth, existing 11# i iron can not meet the requirement of tunnel compressive strength, must adopt the H shaped steel shack of larger number.The H shaped steel shack in current tunnel adopts single, the double supporting of 12# steel I-beam.
H shaped steel shack model increases, its deadweight is inevitable heavier, a 12# H shaped steel shack weighs more than 100 kilogram, current existing tunnel is when setting up H shaped steel shack, most employing is manually set up, the upper beam of an erection H shaped steel shack needs four or five workmans to construct together, labour intensity is large, but also have the danger of leaking top, roof fall at any time, bring hidden danger to the personal safety of construction worker, therefore, research and develop a kind of H shaped steel shack spanning equipment, replacing manual operation, concerning coal industry technician, is a technical problem anxious to be resolved.
Summary of the invention
In sum, in order to overcome the deficiency of prior art problem, the invention provides a kind of frame canopy beaming device of coal mine roadway H shaped steel shack, it arranges fixator on the H shaped steel shack set up, cantilever and push unit are set in fixator, push unit can promote cantilever and move, simultaneously at front end rational height adjusting device and the width adjusting device of cantilever, in the front end of width adjusting device, outrigger device is set, the upper beam of H shaped steel shack is placed in outrigger device, the installation site of H shaped steel shack upper beam is regulated by width adjusting device and arrangement for adjusting height, manually fix afterwards, thus reach the object of installing H shaped steel shack upper beam.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of frame canopy beaming device of coal mine roadway H shaped steel shack, wherein: comprise cantilever, sleeve pipe, fixator, advance bearing, propulsion plant, height regulating arm, arrangement for adjusting height, width adjusting device and outrigger device, cantilever is arranged in sleeve pipe, sleeve pipe is suspended on the H shaped steel shack upper beam that set up by least two fixators, bearing is advanced to be suspended on the H shaped steel shack upper beam that set up, the rear end of cantilever is connected with propelling bearing by propulsion plant, propulsion plant is arranged in sleeve pipe, the front end of cantilever is hinged with the rear end of height regulating arm, height regulating arm is hollow structure, width adjusting device is provided with in it, connecting rod and outrigger device, the rear end of width adjusting device is fixed with height regulating arm inner bottom surface, the front end of width adjusting device is connected with one end of connecting rod by width universal joint, the other end and the outrigger device of connecting rod are fixed, the bottom of height regulating arm is provided with little arm, the front lower portion of cantilever is provided with large arm, the rear end of large arm and arrangement for adjusting height is hinged, the front end of little arm and arrangement for adjusting height is hinged.
Technical scheme of the present invention can also be achieved in that described fixator comprises fixed base plate, fixing hook arm, fixing jackscrew, fixing and locking bolt and roller bearing, fixed base plate is hinged with four fixing hook arm, fixing hook arm upper end is hooked on the H shaped steel shack upper beam that set up, by fixing and locking bolt-locking between fixing hook arm, fixed base plate is provided with roller bearing, sleeve pipe to be arranged on roller bearing and to pass between fixing hook arm, be provided with fixing jackscrew in the middle part of fixed base plate, fixing jackscrew holds out against sleeve pipe and H shaped steel shack upper beam.
Technical scheme of the present invention can also be achieved in that described propelling bearing comprises and advances base plate, propelling hook arm, propelling jackscrew and advance lock bolt, advance on base plate and be hinged with four propelling hook arm, hook arm upper end is advanced to be hooked on the H shaped steel shack upper beam that set up, advance between hook arm by advancing lock bolt locking, advance in the middle part of base plate and be provided with propelling jackscrew, jackscrew upper end is advanced to be provided with supporting plate, soffit on H shaped steel shack held by supporting plate, advance the middle part of jackscrew to be fixed with contiguous block, contiguous block is connected with propulsion plant by advancing universal joint.
Technical scheme of the present invention can also be achieved in that described sleeve pipe both sides are provided with track, track is provided with suspention eyelid retractor, suspention eyelid retractor comprises suspention hook arm, suspention lock bolt and roller, suspention hook arm upper end is hooked on the H shaped steel shack upper beam that set up, by the locking of suspention lock bolt between suspention hook arm, suspention hook arm lower end is provided with roller, and roller is arranged in orbit.
Technical scheme of the present invention can also be achieved in that described propulsion plant, width adjusting device and arrangement for adjusting height are that cylinder is or/and hydraulic cylinder is or/and oil cylinder.
Technical scheme of the present invention can also be achieved in that described outrigger device is U-shaped.
Technical scheme of the present invention can also be achieved in that the cross sectional shape of described fixing hook arm is for " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
Technical scheme of the present invention can also be achieved in that the cross sectional shape of described propelling hook arm is for " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
Technical scheme of the present invention can also be achieved in that the cross sectional shape of described suspention hook arm is for " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
Beneficial effect of the present invention is:
1, the present invention arranges fixator on the H shaped steel shack set up, cantilever and push unit are set in fixator, push unit can promote cantilever and move, simultaneously at front end rational height adjusting device and the width adjusting device of cantilever, in the front end of width adjusting device, outrigger device is set, the upper beam of H shaped steel shack is placed in outrigger device, the installation site of H shaped steel shack upper beam is regulated by width adjusting device and arrangement for adjusting height, manually fix afterwards, thus reach the object of installing H shaped steel shack upper beam.
2, rational height adjusting device of the present invention, arrangement for adjusting height can carry out controlroof according to the upper and lower angle of top board, can the angle of adjusting bracket canopy easily, safe and reliable, flexible adjustment; After installation, can be fixed on H shaped steel shack tightly, and difficult drop-off, greatly improve the security reliability of digging roadway construction.
3, the present invention regulates the fixing jackscrew of fixator, and cantilever is moved down, and can be moved forward by cantilever timely, reach cantilever is short for service time, saves support time, reduces labor strength, increase work efficiency.
4, simple, easy to use, the flexible operation of structure of the present invention, quickness and high efficiency, be not only applicable to temporary lining tunnel, also be applicable to frame canopy permanent support tunnel, stopped driving face sky top, leaked top phenomenon, ensure that the personal safety of worker, alleviate worker's labour intensity, improve operating efficiency, not only accomplished simultaneous drifting, and up-to-standard rate is high.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of cantilever of the present invention, fixator, propulsion plant and propelling bearing;
Fig. 3 is the structural representation of height regulating arm of the present invention and arrangement for adjusting height.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of frame canopy beaming device of coal mine roadway H shaped steel shack, comprises cantilever 6, sleeve pipe 26, fixator 4, advance bearing 1, propulsion plant 3, height regulating arm 9, arrangement for adjusting height 13, width adjusting device 7 and outrigger device 11, propulsion plant 3 is propulsion cylinder, arrangement for adjusting height 13 is height adjusting cylinders, width adjusting device 7 is width adjusting cylinder, cantilever 6 is arranged in sleeve pipe 26, sleeve pipe 26 is suspended in by four fixators 4 on the H shaped steel shack upper beam 5 that set up, and fixator 4 comprises fixed base plate 24, fixing hook arm 15, fixing jackscrew 23, fixing and locking bolt 22 and roller bearing 25, fixed base plate 24 is hinged with four fixing hook arm 15, fixing hook arm 15 upper end is hooked on the H shaped steel shack upper beam 5 that set up, locked by fixing and locking bolt 22 between fixing hook arm 15, fixed base plate 24 is provided with roller bearing 25, sleeve pipe 26 to be arranged on roller bearing 25 and to pass between fixing hook arm 15, is provided with fixing jackscrew 23 in the middle part of fixed base plate 24, and fixing jackscrew 23 holds out against sleeve pipe 26 and H shaped steel shack upper beam 5.The cross sectional shape of fixing hook arm 15 is " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
Advance bearing 1 to be suspended on the H shaped steel shack upper beam 5 that set up, advance bearing 1 to comprise and advance base plate 21, advance hook arm 17, advance jackscrew 19 and advance lock bolt 20, propelling base plate 21 is hinged with four propelling hook arm 17.Hook arm 17 upper end is advanced to be hooked on the H shaped steel shack upper beam 5 that set up, advance between hook arm 17 by advancing lock bolt 20 to lock, advance in the middle part of base plate 21 and be provided with propelling jackscrew 19, jackscrew 19 upper end is advanced to be provided with supporting plate 18, supporting plate 18 blocks H shaped steel shack upper beam 5 bottom, advance the middle part of jackscrew 19 to be fixed with contiguous block 16, contiguous block 16 is connected with propulsion plant 3 by advancing universal joint 2.The cross sectional shape advancing hook arm 17 is " F " font, and middle part is provided with projection, and projection blocks the groove in the middle part of i iron.
Cantilever 6 and propulsion plant 3 are arranged in sleeve pipe 26, the rear end of cantilever 6 is connected with propelling bearing 1 by propulsion plant 3, propulsion plant 3 is propulsion cylinder, the front end of the expansion link of propulsion cylinder is connected with advancing the contiguous block 16 of bearing 1 by advancing universal joint 2, and the cylinder body of propulsion cylinder and the rear end of cantilever 6 are fixed.The front end of cantilever 6 is hinged with the rear end of height regulating arm 9, height regulating arm 9 is hollow structure, be provided with width adjusting device 7, connecting rod 10 and outrigger device 11 in it, width adjusting device 7 is width adjusting cylinder, the cylinder body of width adjusting cylinder is fixed with the inner bottom surface of height regulating arm 9, the expansion link of width adjusting cylinder is connected with one end of connecting rod 10 by width universal joint 8, the other end and the outrigger device 11 of connecting rod 10 are fixed, and outrigger device 11 is U-shaped.The bottom of height regulating arm 9 is provided with little arm 12, the front lower portion of cantilever 6 is provided with large arm 14, large arm 14 is connected by arrangement for adjusting height 13 with little arm 12, arrangement for adjusting height 13 is height adjusting cylinders, cylinder body and the large arm 14 of height adjusting cylinders are hinged, and expansion link and the little arm 12 of height adjusting cylinders are hinged.
The both sides of sleeve pipe 26 are provided with track 27, track 27 is arranged on the two ends up and down of outside, sleeve pipe 26 both sides, track 27 is provided with suspention eyelid retractor 28, suspention eyelid retractor 28 comprises suspention hook arm 29, suspention lock bolt 30 and roller 31, suspention hook arm 29 upper end is hooked on the H shaped steel shack upper beam that set up, locked by suspention lock bolt 30 between suspention hook arm 29, suspention hook arm 29 lower end is provided with roller 31, roller 31 is arranged on track 27, the cross sectional shape of suspention hook arm 29 is " F " font, projection is provided with in the middle part of it, projection blocks the groove in the middle part of i iron.
During use, when tunnel work plane needs the upper beam setting up new H shaped steel shack, start width adjusting cylinder, the expansion link of width adjusting cylinder stretches out, by width universal joint 8 and connecting rod 10, outrigger device 11 is sent outside height regulating arm 9, until outrigger device 11 reaches the installation site of H shaped steel shack upper beam 5, then will the H shaped steel shack upper beam 5 installed be needed to be placed in outrigger device 11, then height adjusting cylinders is started, the expansion link of height adjusting cylinders stretches out, jack-up height regulating arm 9 rotates around the pin joint of height regulating arm 9 and cantilever 6, thus make outrigger device 11 drive H shaped steel shack upper beam 5 to rise to the position of required supporting, then by the forestope reach on original H shaped steel shack, it is made to support the H shaped steel shack upper beam 5 of residence erection, constructor installs the supporting leg of H shaped steel shack afterwards, so far, H shaped steel shack installs, regain the expansion link of width adjusting cylinder and height adjusting cylinders.
Along with the intensification of tunnel work plane, when the stroke of width adjusting cylinder can not meet erection needs, start propulsion cylinder, propulsion cylinder promotes cantilever 6 and moves forward, and after reaching desired location, closes propulsion cylinder.
The length that suspention eyelid retractor 28 stretches out forward at cantilever 6 and sleeve pipe 26 is longer, causes the utility model front weight overweight, and during the disequilibrium of front and back, the roller 31 of suspention eyelid retractor 28 withstands track 27, plays the object of suspention cantilever 6 and sleeve pipe 26.
Be noted that, above-described embodiment is unrestricted to the explanation of technical solution of the present invention, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as do not exceed thinking and the scope of technical solution of the present invention, all should be included within interest field of the presently claimed invention.
Claims (8)
1. the frame canopy beaming device of a coal mine roadway H shaped steel shack, it is characterized in that: comprise cantilever (6), sleeve pipe (26), fixator (4), advance bearing (1), propulsion plant (3), height regulating arm (9), arrangement for adjusting height (13), width adjusting device (7) and outrigger device (11), cantilever (6) is arranged in sleeve pipe (26), sleeve pipe (26) is suspended on the H shaped steel shack upper beam (5) that set up by least two fixators (4), bearing (1) is advanced to be suspended on the H shaped steel shack upper beam (5) that set up, the rear end of cantilever (6) is connected with propelling bearing (1) by propulsion plant (3), propulsion plant (3) is arranged in sleeve pipe (26), the front end of cantilever (6) is hinged with the rear end of height regulating arm (9), height regulating arm (9) is hollow structure, width adjusting device (7) is provided with in it, connecting rod (10) and outrigger device (11), the rear end of width adjusting device (7) is fixed with height regulating arm (9) inner bottom surface, the front end of width adjusting device (7) is connected with one end of connecting rod (10) by width universal joint (8), the other end of connecting rod (10) and outrigger device (11) are fixed, the bottom of height regulating arm (9) is provided with little arm (12), the front lower portion of cantilever (6) is provided with large arm (14), large arm (14) is hinged with the rear end of arrangement for adjusting height (13), little arm (12) is hinged with the front end of arrangement for adjusting height (13), the both sides of described sleeve pipe (26) are provided with track (27), track (27) is provided with suspention eyelid retractor (28), suspention eyelid retractor (28) comprises suspention hook arm (29), suspention lock bolt (30) and roller (31), suspention hook arm (29) upper end is hooked on the H shaped steel shack upper beam that set up, by suspention lock bolt (30) locking between suspention hook arm (29), suspention hook arm (29) lower end is provided with roller (31), roller (31) is arranged on track (27).
2. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 1, it is characterized in that: described fixator (4) comprises fixed base plate (24), fixing hook arm (15), fixing jackscrew (23), fixing and locking bolt (22) and roller bearing (25), fixed base plate (24) is hinged with four fixing hook arm (15), fixing hook arm (15) upper end is hooked on the H shaped steel shack upper beam (5) that set up, by fixing and locking bolt (22) locking between fixing hook arm (15), fixed base plate (24) is provided with roller bearing (25), sleeve pipe (26) is arranged on roller bearing (25) and goes up and pass between fixing hook arm (15), fixed base plate (24) middle part is provided with fixing jackscrew (23), fixing jackscrew (23) holds out against sleeve pipe (26) and H shaped steel shack upper beam (5).
3. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 1, it is characterized in that: described propelling bearing (1) comprises propelling base plate (21), advance hook arm (17), advance jackscrew (19) and advance lock bolt (20), advance on base plate (21) and be hinged with four propellings hook arm (17), hook arm (17) upper end is advanced to be hooked on the H shaped steel shack upper beam (5) that set up, advance between hook arm (17) by advancing lock bolt (20) locking, advance base plate (21) middle part to be provided with and advance jackscrew (19), jackscrew (19) upper end is advanced to be provided with supporting plate (18), supporting plate (18) blocks H shaped steel shack upper beam (5) bottom, the middle part of jackscrew (19) is advanced to be fixed with contiguous block (16), contiguous block (16) is connected with propulsion plant (3) by advancing universal joint (2).
4. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 1, is characterized in that: described propulsion plant (3), width adjusting device (7) and arrangement for adjusting height (13) for cylinder or/and hydraulic cylinder is or/and oil cylinder.
5. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 1, is characterized in that: described outrigger device (11) is for U-shaped.
6. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 2, is characterized in that: the cross sectional shape of described fixing hook arm (15) is " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
7. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 3, is characterized in that: the cross sectional shape of described propelling hook arm (17) is " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
8. the frame canopy beaming device of coal mine roadway H shaped steel shack according to claim 1, is characterized in that: the cross sectional shape of suspention hook arm (29) is " F " font, and be provided with projection in the middle part of it, projection blocks the groove in the middle part of i iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203206.5A CN102704962B (en) | 2012-06-20 | 2012-06-20 | Shed upper beam device of I-beam shed for coal mine laneway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203206.5A CN102704962B (en) | 2012-06-20 | 2012-06-20 | Shed upper beam device of I-beam shed for coal mine laneway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102704962A CN102704962A (en) | 2012-10-03 |
| CN102704962B true CN102704962B (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210203206.5A Expired - Fee Related CN102704962B (en) | 2012-06-20 | 2012-06-20 | Shed upper beam device of I-beam shed for coal mine laneway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102704962B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711485B (en) * | 2013-12-27 | 2015-10-07 | 河南永华能源有限公司 | Colliery H-shaped steel supporting hanging combined type pneumatic pick machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075856A (en) * | 1975-10-14 | 1978-02-28 | Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft | Device for consecutively supporting a drift |
| GB1549192A (en) * | 1976-04-15 | 1979-08-01 | Purdy R C | Lifting apparatus |
| CN2916134Y (en) * | 2006-03-27 | 2007-06-27 | 山东兖煤精益机电设备有限公司 | Advance-support front canopy in roadway |
| CN101285390A (en) * | 2008-05-12 | 2008-10-15 | 刘卫平 | Suspended type combined hydraulic automatic top beam device |
| CN101761347A (en) * | 2010-02-08 | 2010-06-30 | 刘卫平 | Suspended combined hydraulic beaming device |
| CN201802425U (en) * | 2010-10-12 | 2011-04-20 | 陶方新 | Device for fixing E type front canopy and F type front canopy of I-shaped steel support |
| CN201802422U (en) * | 2010-10-12 | 2011-04-20 | 河南永华能源有限公司 | Fixer of front canopy of I-shaped steel roadway support |
| CN201826859U (en) * | 2010-08-02 | 2011-05-11 | 史恪心 | U-shaped support mounting machine |
| CN102400696A (en) * | 2011-11-09 | 2012-04-04 | 三一重型装备有限公司 | Timbering machine and tunneling machine applying same |
| CN202718689U (en) * | 2012-06-20 | 2013-02-06 | 河南永华能源有限公司 | Shed erecting and beam mounting device for double T-steel shed used in tunnel of coal mine |
-
2012
- 2012-06-20 CN CN201210203206.5A patent/CN102704962B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4075856A (en) * | 1975-10-14 | 1978-02-28 | Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft | Device for consecutively supporting a drift |
| GB1549192A (en) * | 1976-04-15 | 1979-08-01 | Purdy R C | Lifting apparatus |
| CN2916134Y (en) * | 2006-03-27 | 2007-06-27 | 山东兖煤精益机电设备有限公司 | Advance-support front canopy in roadway |
| CN101285390A (en) * | 2008-05-12 | 2008-10-15 | 刘卫平 | Suspended type combined hydraulic automatic top beam device |
| CN101761347A (en) * | 2010-02-08 | 2010-06-30 | 刘卫平 | Suspended combined hydraulic beaming device |
| CN201826859U (en) * | 2010-08-02 | 2011-05-11 | 史恪心 | U-shaped support mounting machine |
| CN201802425U (en) * | 2010-10-12 | 2011-04-20 | 陶方新 | Device for fixing E type front canopy and F type front canopy of I-shaped steel support |
| CN201802422U (en) * | 2010-10-12 | 2011-04-20 | 河南永华能源有限公司 | Fixer of front canopy of I-shaped steel roadway support |
| CN102400696A (en) * | 2011-11-09 | 2012-04-04 | 三一重型装备有限公司 | Timbering machine and tunneling machine applying same |
| CN202718689U (en) * | 2012-06-20 | 2013-02-06 | 河南永华能源有限公司 | Shed erecting and beam mounting device for double T-steel shed used in tunnel of coal mine |
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| Publication number | Publication date |
|---|---|
| CN102704962A (en) | 2012-10-03 |
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Inventor after: Hu Yuemin Inventor after: Tao Fangxin Inventor after: Li Zhejun Inventor after: Ren Yalei Inventor after: Geng Yadong Inventor after: Li Zhaozhi Inventor before: Tao Fangxin |
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Inventor after: Cheng Guoqi Inventor after: Gao Jiaping Inventor after: Hu Yuemin Inventor after: Tao Fangxin Inventor after: Li Zhejun Inventor after: Ren Yalei Inventor after: Geng Yadong Inventor after: Li Zhaozhi Inventor before: Hu Yuemin Inventor before: Tao Fangxin Inventor before: Li Zhejun Inventor before: Ren Yalei Inventor before: Geng Yadong Inventor before: Li Zhaozhi |
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