CN109989779B - Temporary support system integrating automatic net laying, dust removal device and advancing function - Google Patents
Temporary support system integrating automatic net laying, dust removal device and advancing function Download PDFInfo
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- CN109989779B CN109989779B CN201910036080.9A CN201910036080A CN109989779B CN 109989779 B CN109989779 B CN 109989779B CN 201910036080 A CN201910036080 A CN 201910036080A CN 109989779 B CN109989779 B CN 109989779B
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- 239000000428 dust Substances 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 64
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- 230000007704 transition Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 239000004429 Calibre Substances 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
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- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 2
- 230000006855 networking Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 21
- 238000004873 anchoring Methods 0.000 description 18
- 238000005065 mining Methods 0.000 description 7
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- 229910000831 Steel Inorganic materials 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
- E21D23/063—Retractable cantilever extensions therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Structural Engineering (AREA)
- Civil Engineering (AREA)
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Abstract
The invention belongs to the technical field of control and maintenance of a top plate under a coal mine, and particularly relates to a temporary support system integrating automatic net laying, a dust removal device and a forward exploring function. The problem of current colliery in pit temporary support because of can't realize automatic lapping and dust removal, dig the anchor can not the synchronous operation, can't realize zero-space-head-distance etc is solved, including temporary support mechanism, be provided with the automatic lapping mechanism that is used for the anchor net to store, carry, hangs in the temporary support mechanism, the temporary support system front end has the self-adaptation to adjust the roof structure, and temporary support mechanism internally arranged has closed wind-guiding passageway. The invention is provided with an automatic net laying device, so that the storage, the transportation and the automatic net hanging of the anchor net are realized. The method replaces the traditional manual net feeding and networking method, reduces the labor intensity of workers, improves the automation degree of the system, and accords with the development trend of mechanical people changing and automatic people reducing of coal mine equipment.
Description
Technical Field
The invention belongs to the technical field of control and maintenance of a top plate under a coal mine, and particularly relates to a temporary support system integrating automatic net laying, a dust removal device and a forward exploring function.
Background
The temporary support technology is one of research contents of coal mine roadway support theory and technology, and at present, three types of temporary advance supports are commonly adopted on underground coal mine tunneling working faces in China, namely, a hanging ring penetrating pipe type forepoling bar temporary support; secondly, a temporary supporting device is carried on the tunneling machine; thirdly, a multi-row single hydraulic prop heightening strength I-shaped steel shed beam supporting method and the like. The modes relieve the pressure of head-on support of the tunneling working face to a certain extent and improve the support condition of the working face.
However, in actual use, the temporary support device has the following disadvantages:
1) and the lapping adopts manual laying, so that the automation degree is low. When the anchor net is laid, workers need to step on the escalator, hold the anchor net by hands and manually transfer to complete the whole operation, and automatic net laying cannot be achieved.
2) Without a dust collecting device, the system has low functional integration level.
3) The tunneling operation is separated from the anchoring operation, and the tunneling efficiency is low. The traditional temporary support system cannot realize synchronous operation in tunneling, temporary support and anchor protection, and influences the tunneling speed of a working face.
Zero-space-top distance cannot be realized, and the adaptability of the system to the top plate is poor. The empty-roof distance is an important index for describing the stability of the top plate and is an important standard for measuring the adaptability of the temporary supporting system. The coal mine under the stable and medium stable conditions can have a certain empty top distance, and the coal mine under the unstable and extremely unstable conditions has strict requirements on the empty top distance, even the empty top distance is zero. The temporary support cannot realize small empty-top distance, so that the application range of the device is limited.
Disclosure of Invention
The invention provides a temporary support system integrating automatic net laying, a dust removal device and a forward exploring function, and aims to solve the problems that the existing underground coal mine temporary support has low tunneling efficiency, high working flour dust concentration and low system safety factor due to the fact that automatic net laying and dust removal cannot be realized, synchronous operation cannot be performed during tunneling and anchoring, zero-space top distance cannot be realized and the like.
The invention adopts the following technical scheme: the utility model provides a collect automatic lapping, dust collector, integrative temporary support system of forestope function, includes temporary support mechanism, is provided with the automatic lapping mechanism that is used for the anchor net to store, carry, hangs in the temporary support mechanism, and the temporary support system front end has self-adaptation regulation roof plate structure, and the inside closed wind-guiding passageway of having arranged of temporary support mechanism.
Further, the temporary supporting mechanism comprises a step-by-step type forward-probing ceiling, a main frame body, a forked frame, a supporting rod mechanism, a screw rod adjusting mechanism, a supporting oil cylinder and a forward-probing oil cylinder, wherein the step-by-step type forward-probing ceiling is positioned at the foremost end, and the step-by-step type forward-probing ceiling is connected with the main frame body in a sliding manner through a rail; the rear end of the main frame body is connected with the forked frame; the rear end of the forked frame is provided with a screw rod adjusting mechanism; the upper connecting lug of the supporting oil cylinder is connected with the lower connecting lug of the step-drive type forward canopy; the upper end of the stay bar mechanism is connected with the other connecting lug at the lower end of the step-drive type front canopy; the cylinder end of the front-exploring oil cylinder is connected with the main frame body, and the piston rod end of the front-exploring oil cylinder is connected with the step-advancing type front-exploring ceiling.
Further, the supporting rod mechanism comprises a sleeve, a supporting rod and a bolt, the supporting rod is arranged in the sleeve, a plurality of uniformly distributed limiting holes are formed in the sleeve, the hole distance between every two adjacent limiting holes is equal, and the bolt can be inserted into different limiting holes.
Furthermore, the automatic net laying mechanism comprises an anchor net storage device, an anchor net conveying mechanism and a net hanging device, wherein the anchor net storage device is fixed on the forked frame, and the anchor net storage device is connected with the net hanging device through the anchor net conveying mechanism.
Further, the anchor net conveying mechanism comprises a driving motor, a right driving shaft, a connecting shaft, a left driving shaft, a chain wheel, a roller chain, a chain accessory, a chain tensioning mechanism and a driven shaft, wherein the driving motor is connected with the right driving shaft through a key I; the right driving shaft is connected with one end of a connecting shaft through a key II, the other end of the connecting shaft is connected with the left driving shaft, chain wheels are respectively arranged on the left driving shaft and the right driving shaft, and a roller chain is arranged between the chain wheels at the two ends; the roller chain is 2 groups altogether, and the symmetrical arrangement is in the body frame body both sides, and every roller chain of group goes up the installation by a chain annex, and the same phase installation, the arch on the chain annex inserts in the hole of anchor net.
Furthermore, closed wind-guiding passageway includes heavy-calibre air intake, dryer bottom plate, transition frame and box dryer, but the both sides of heavy-calibre air intake are fire-retardant rubber board, in the dryer bottom plate gets into closed wind-guiding passageway by the heavy-calibre air intake, dryer bottom plate one end was put up through the round pin hub connection with the transition, the dryer bottom plate other end leads chain and body frame body flexible coupling through two, sets up a plurality of air doors of group on the dryer bottom plate, box dryer is connected to the transition frame rear end.
Further, the chain tensioning mechanism comprises a guide wheel mounting seat, the guide wheel mounting seat is mounted in a prefabricated slideway of the main frame body, the outer side end of the guide wheel mounting seat is fixed with the driven shaft, the inner side end of the guide wheel mounting seat is provided with a screw rod, two nuts are arranged on the screw rod, one nut has a limiting effect, and the other nut has a locking effect; the end part of the screw rod is provided with a bolt, a sunk groove is formed in the position, corresponding to the bolt head, of the main frame body, and one part of the bolt head is sunk in the sunk groove.
The temporary support system integrating the automatic net laying, the dust removing device and the advancing function is generally integrated into a whole system of the tunneling and anchoring integrated machine. The lower end of a support rod at the front end of the temporary support is provided with a mounting hole which can be connected with a frame of the tunneling and anchoring integrated machine, and the lower end of a support oil cylinder is connected with a support bottom plate of the tunneling and anchoring integrated machine; the rear end of the temporary support is connected with a frame of the tunneling and anchoring integrated machine through a screw rod. When the tunneling and anchoring integrated machine performs undermining operation, under the action of the temporary supporting oil cylinder, the temporary supporting self-adaptive roof is in contact with a roadway roof and exerts a certain acting force, the cutting drum is lifted, undermined and pulled down, after the whole cutting process is completed, the supporting oil cylinder retracts for a certain distance (about 50-100 mm), the front detection oil cylinder extends out to push out a front detection ceiling for a certain distance, the distance can be preset according to the empty roof distance, then the supporting oil cylinder is lifted, the self-adaptive roof is connected, the empty roof distance is reduced until the empty roof distance is zero, and the control effect of the roadway roof is improved. Because there is certain matching relation in the effective length of screw rod and the tunnel height of adopting, when the height of adopting changes, need adjust the screw rod. The mounting position of the limiting bolt on the supporting rod is determined by the mining height.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is applied to a digging and anchoring integrated machine, 2 screw rods at the rear end of a temporary support are respectively connected with 2 tail frames of the digging and anchoring integrated machine, 2 support oil cylinders at the front end of the temporary support are respectively connected with a left support base and a right support base at the front end of the digging and anchoring integrated machine, and 2 groups of support rods are respectively connected with the upwarping of the front ends of the left track frame and the right track frame of the digging and anchoring integrated machine. When the tunneling and anchoring integrated machine carries out cutting operation and anchoring operation, the whole supporting system realizes effective control on the top plate, shortens the empty top distance and improves the stability and reliability of the integrated machine.
2. The screw rod in the invention can be adjusted, so that the effective connection length of the screw rod is matched with the mining height of a tunneling working face, thereby enlarging the application range of the system and improving the adaptability of the system.
3. Displacement sensors are arranged in the supporting oil cylinder and the advancing oil cylinder, so that the linkage of advancing depth and mining height is realized, and when the mining height is fixed, the advancing depth is electronically limited. The corresponding relation between the forward exploration depth and the mining height parameter can be adjusted through a program, and the zero-space-top distance can be realized by adjusting the forward exploration depth. The adaptability of the system to the top plate is improved.
4. The invention is provided with an automatic net laying device, so that the storage, the transportation and the automatic net hanging of the anchor net are realized. The method replaces the traditional manual net feeding and networking method, reduces the labor intensity of workers, improves the automation degree of the system, and accords with the development trend of mechanical people changing and automatic people reducing of coal mine equipment.
5. With high-efficient dust collecting device integration in temporary support system, dust collection efficiency is high, cooperates other spraying mechanism, but greatly reduced working face's dust concentration.
In conclusion, the temporary support system integrating the automatic net laying, dust removal devices and the advancing function can realize the automatic conveying of the anchor net, and the degree of automation is high; the loaded dust removal device can effectively reduce dust on the working surface; the sliding type front roof realizes linkage and interlocking with cutting height and cut depth, so that zero-clearance distance becomes possible; the design of determining the adjusting length of the screw according to the mining height improves the adaptability of the system.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a side view (in partial) of the present invention;
FIG. 4 is a cross-sectional view of an anchor net delivery mechanism;
FIG. 5 is a chain tensioner mechanism diagram;
FIG. 6 is a schematic view of a chain attachment;
FIG. 7 is a support bar mechanism diagram;
in the figure, 1-a temporary supporting mechanism, 2-an automatic lapping mechanism, 3-an adaptive adjusting top plate structure, 4-a closed air guide channel, 5-a step-by-step forward canopy, 6-a main frame body, 7-a forked frame, 8-a supporting rod mechanism, 9-a screw rod adjusting mechanism, 10-a supporting oil cylinder, 11-a forward canopy, 12-an anchor net storage device, 13-an anchor net conveying mechanism, 14-a net hanging device, 15-a driving motor, 16-a right side driving shaft, 17-a connecting shaft, 18-a left side driving shaft, 19-a chain wheel, 20-a roller chain, 21-a chain accessory, 22-a chain tensioning mechanism, 23-a driven shaft, 24-a key I, 25-a key II, 26-a large-caliber air inlet and 27-an air duct bottom plate, 28-transition frame, 29-box type wind tube, 30-flame retardant rubber plate, 31-pin shaft, 32-guide chain, 33-air door, 34-sleeve, 35-support rod, 36-bolt, 37-limit hole, 38-guide wheel mounting seat, 39-nut, 40-bolt and 41-sink groove.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings, which are used for illustration of the invention and are not intended to limit the invention in any way.
As shown in fig. 1 and 2, the temporary support system of the present invention, which integrates automatic net laying, dust removing and forward probing functions, is composed of a temporary support mechanism 1, an automatic net laying mechanism 2 for storing, transporting and hanging up anchor nets, a self-adaptive adjusting roof structure 3 arranged at the front end of the temporary support, and a closed air guide channel 4 for dust flow of a working surface to pass through. The temporary support system is generally integrated in the whole machine system of the tunneling and anchoring integrated machine, the lower end of a stay bar mechanism 8 at the front end of a temporary support mechanism 1 is provided with a mounting hole which can be connected with a frame of the tunneling and anchoring integrated machine, and the lower end of a support oil cylinder 10 is connected with a support bottom plate of the tunneling and anchoring integrated machine; the rear end of the temporary supporting mechanism 1 is connected with a frame of the tunneling and anchoring integrated machine through a screw adjusting mechanism 9.
The temporary supporting mechanism 1 mainly comprises a step-by-step type forward-exploring ceiling 5, a main frame body 6, a forked frame 7, a supporting rod mechanism 8, a screw rod adjusting mechanism 9, a supporting oil cylinder 10 and a forward-exploring oil cylinder 11. The step-drive type forward-exploring ceiling 5 is positioned at the foremost end of the temporary support system and is connected with the main frame body 6 through a rail, so that relative sliding can be realized; the rear end of the main frame body 6 is connected with the forked frame 7 through a pin shaft; the rear end of the forked frame 7 is provided with a screw adjusting mechanism 9, and the matching with the mining height of the tunneling and anchoring integrated machine can be realized by adjusting the effective thread length of the screw; the upper connecting lug of the supporting oil cylinder 10 is connected with the lower connecting lug of the step-drive type front canopy 5; the upper end of the stay bar mechanism 8 is connected with the other connecting lug at the lower end of the step-drive type front canopy 5; the cylinder end of the front detection oil cylinder 11 is connected with the main frame body 6, the piston rod end is connected with the step-type front detection ceiling 5, and the front detection ceiling 5 realizes relative displacement under the action of the front detection oil cylinder 5.
As shown in fig. 2, 4 and 6, the automatic lapping mechanism 2 is composed of an anchor net storage 12, an anchor net conveying mechanism 13, a net hanging device 14 and the like. The anchor net storage 12 is fixed on the forked frame 7 and used for temporarily storing and placing the anchor net; the anchor net conveying mechanism 13 comprises a driving motor 15, a right driving shaft 16, a connecting shaft 17, a left driving shaft 18, a chain wheel 19, a roller chain 20, a chain accessory 21, a chain tensioning mechanism 22, a driven shaft 23 and the like. The drive motor 15 is connected with the right drive shaft 16 through a key I24; right drive shaft 16 pass key
25 is connected with the connecting shaft 17 and the left driving shaft 18 and is also connected with the chain wheel 19; roller chain 20 totally 2 groups, symmetrical arrangement is in 6 both sides of body frame, and 1 chain annex 21 of installation on every group roller chain 20, the same phase installation, and the arch on the chain annex 21 inserts in the hole of anchor net for location and drive anchor net realize the conveying of anchor net.
As shown in fig. 3, the closed air guiding channel 4 is composed of a large-caliber air inlet 26, an air duct bottom plate 27, a transition frame 28 and a box-type air duct 29. The two sides of the large-diameter air inlet 26 are provided with the flame-retardant rubber plates 30 which are optimally designed in an arc shape and are consistent with an air flow path, so that the air inlet amount is increased, and the air flow smoothness is improved; one end of the air duct bottom plate 27 is connected with the transition frame 28 through a pin shaft 31, and the other end is flexibly connected with the main frame body 6 through two guide chains 32; a plurality of groups of air doors 33 are arranged on the air duct bottom plate 27, when dust collection in the air duct channel needs to be cleaned, the air doors are opened, and the air doors are closed under a normal working state; the rear end of the transition frame 28 is provided with a box type air duct 29 which adopts a plate welding structure and can be externally connected with a flexible soft air duct or a hard air duct with a steel wire framework to realize the extraction of air flow.
As shown in fig. 7, the supporting rod mechanism 8 includes a sleeve 34, a supporting rod 35, and a bolt 36, wherein the sleeve 34 is provided with a plurality of uniformly distributed limiting holes 37, the hole distance of each adjacent limiting hole 37 is equal, and the bolt 36 is inserted into different limiting holes 37 according to actual needs to limit the supporting rod 35.
As shown in fig. 5, the chain tensioning mechanism 22 includes a guide wheel mounting seat 38, a nut 39 and a bolt 40, wherein the guide wheel mounting seat 38 is mounted in a prefabricated slideway of the main frame body 6; two nuts 39 are provided, one for limiting and the other for locking; a sunk groove 41 is formed in the position, corresponding to the bolt head, of the main frame body 6, and a part of the bolt head is sunk in the sunk groove 41 to limit the bolt 40. The chain tensioning mechanism 22 accomplishes the tensioning function and maintenance of the chain.
Claims (6)
1. The utility model provides a collect automatic lapping, dust collector, integrative interim supporting system of forestope function which characterized in that: the device comprises a temporary supporting mechanism (1), wherein an automatic net laying mechanism (2) for storing, conveying and hanging anchor nets is arranged on the temporary supporting mechanism (1), a self-adaptive adjusting top plate structure (3) is arranged at the front end of the temporary supporting system, and a closed air guide channel (4) is arranged in the temporary supporting mechanism (1); the temporary supporting mechanism (1) comprises a step-forward type forward canopy (5), a main frame body (6), a forked frame (7), a support rod mechanism (8), a screw rod adjusting mechanism (9), a supporting oil cylinder (10) and a forward oil cylinder (11), wherein the step-forward type forward canopy (5) is positioned at the foremost end, and the step-forward type forward canopy (5) and the main frame body (6) are connected in a relative sliding mode through a rail; the rear end of the main frame body (6) is connected with the forked frame (7); the rear end of the forked frame (7) is provided with a screw rod adjusting mechanism (9); the upper connecting lug of the supporting oil cylinder (10) is connected with the lower connecting lug of the step-drive type front canopy (5); the upper end of the stay bar mechanism (8) is connected with the other connecting lug at the lower end of the step-drive type front canopy (5); the cylinder end of the front detection oil cylinder (11) is connected with the main frame body (6), and the piston rod end of the front detection oil cylinder (11) is connected with the step-by-step front detection ceiling (5).
2. The temporary support system integrating automatic lapping, dust removing and advancing functions as claimed in claim 1, wherein: the supporting rod mechanism (8) comprises a sleeve (34), a supporting rod (35) and a bolt (36), wherein the supporting rod (35) is arranged in the sleeve (34), a plurality of uniformly distributed limiting holes (37) are formed in the sleeve (34), the hole distance of each adjacent limiting hole (37) is equal, and the bolt (36) can be inserted into different limiting holes (37).
3. The temporary support system integrating automatic lapping, dust removing and advancing functions as claimed in claim 1 or 2, wherein: the automatic net laying mechanism (2) comprises an anchor net storage device (12), an anchor net conveying mechanism (13) and a net hanging device (14), the anchor net storage device (12) is fixed on the forked frame (7), and the anchor net storage device (12) is connected with the net hanging device (14) through the anchor net conveying mechanism (13).
4. The temporary support system integrating automatic lapping, dust removing and advancing functions as claimed in claim 3, wherein: the anchor net conveying mechanism (13) comprises a driving motor (15), a right driving shaft (16), a connecting shaft (17), a left driving shaft (18), a chain wheel (19), a roller chain (20), a chain accessory (21), a chain tensioning mechanism (22) and a driven shaft (23), wherein the driving motor (15) is connected with the right driving shaft (16) through a key I (24); the right driving shaft (16) is connected with one end of a connecting shaft (17) through a key II (25), the other end of the connecting shaft (17) is connected with the left driving shaft (18), chain wheels (19) are respectively arranged on the left driving shaft (18) and the right driving shaft (16), and a roller chain (20) is arranged between the chain wheels (19) at the two ends; the roller chains (20) are arranged on two sides of the main frame body (6) symmetrically, each group of roller chains (20) is provided with a chain accessory (21) which is arranged in the same phase, and the bulges on the chain accessories (21) are inserted into the holes of the anchor net.
5. The temporary support system integrating automatic lapping, dust removing and advancing functions as claimed in claim 4, wherein: closed wind-guiding passageway (4) including heavy-calibre air intake (26), dryer bottom plate (27), transition frame (28) and box dryer (29), but the both sides of heavy-calibre air intake (26) are fire-retardant rubber board (30), dryer bottom plate (27) are by heavy-calibre air intake (26) get into closed wind-guiding passageway (4) in, dryer bottom plate (27) one end is connected through round pin axle (31) with transition frame (28), dryer bottom plate (27) other end leads chain (32) and main frame body (6) flexible coupling through two, set up a plurality of air door (33) of group on dryer bottom plate (27), box dryer (29) are connected to transition frame (28) rear end.
6. The temporary support system integrating automatic lapping, dust removing and advancing functions as claimed in claim 5, wherein: the chain tensioning mechanism (22) comprises guide wheel installation seats (38), the guide wheel installation seats (38) are installed in a prefabricated slideway of the main frame body (6), the outer side ends of the guide wheel installation seats (38) are fixed with the driven shaft (23), screw rods are installed at the inner side ends of the guide wheel installation seats (38), two nuts (39) are arranged on the screw rods, one nut has a limiting effect, and the other nut has a locking effect; the end part of the screw rod is provided with a bolt (40), the head part of the bolt (40) of the main frame body (6) is provided with a sinking groove (41) at the corresponding position, and one part of the head part of the bolt (40) is sunk in the sinking groove (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036080.9A CN109989779B (en) | 2019-01-15 | 2019-01-15 | Temporary support system integrating automatic net laying, dust removal device and advancing function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910036080.9A CN109989779B (en) | 2019-01-15 | 2019-01-15 | Temporary support system integrating automatic net laying, dust removal device and advancing function |
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| CN109989779A CN109989779A (en) | 2019-07-09 |
| CN109989779B true CN109989779B (en) | 2020-08-18 |
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| CN112412505B (en) * | 2020-11-19 | 2022-10-14 | 河南理工大学 | Coal mine tunnel fills gob entry anchor net and struts equipment |
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| US6224164B1 (en) * | 1999-02-12 | 2001-05-01 | Joy Mm Delaware, Inc. | Mining machine with detachable articulated cutting assembly |
| CN102155219B (en) * | 2011-03-29 | 2013-07-17 | 大同煤矿集团衡安装备有限公司 | Comprehensive dredging machine |
| CN102704929B (en) * | 2012-06-29 | 2014-11-19 | 中国铁建重工集团有限公司 | Digging and anchoring machine integrated with digging, anchoring and drilling |
| EP2789795A1 (en) * | 2013-04-08 | 2014-10-15 | Sandvik Intellectual Property AB | Mining machine filtering unit |
| CN203430527U (en) * | 2013-08-20 | 2014-02-12 | 中国铁建重工集团有限公司 | Shield type continuous tunneling and anchoring machine |
| CN205840903U (en) * | 2016-07-25 | 2016-12-28 | 济宁亨瑞达机电设备有限公司 | Temporary support device is visited before a kind of overlength |
| CN108194080B (en) * | 2017-12-29 | 2019-09-24 | 陈新川 | A kind of continuous driving system of coal mine roadway |
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