CN110714793A - Suspension anchor net for advance support and automatic steel belt laying device and method - Google Patents
Suspension anchor net for advance support and automatic steel belt laying device and method Download PDFInfo
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- CN110714793A CN110714793A CN201911043879.7A CN201911043879A CN110714793A CN 110714793 A CN110714793 A CN 110714793A CN 201911043879 A CN201911043879 A CN 201911043879A CN 110714793 A CN110714793 A CN 110714793A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 227
- 239000010959 steel Substances 0.000 title claims abstract description 227
- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 132
- 230000007480 spreading Effects 0.000 claims abstract description 120
- 230000008569 process Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 230000007723 transport mechanism Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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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
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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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
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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
- E21D20/00—Setting anchoring-bolts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Civil Engineering (AREA)
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Abstract
A suspension type anchor net for advance support and an automatic steel belt laying device and method are disclosed. The method comprises the following steps: uniformly hanging and mounting the roll-shaped anchor net on an anchor net storage and transportation chain of the anchor net storage and transportation mechanism; an anchor net transfer lever of the anchor net transfer mechanism is controlled to swing downwards, the coiled anchor net at the forefront is taken down and installed on the anchor net transfer lever, and then the anchor net transfer lever is controlled to reset; controlling an anchor net spreading chain of the anchor net spreading mechanism to run, and driving the rolled anchor net to spread into a plane shape by the anchor net spreading poking teeth; lifting the planar anchor net away from the forepoling bar by a lifting plate of the anchor net lifting mechanism; the steel belt transferring clamping hand of the steel belt transferring mechanism is matched with the steel belt transferring telescopic arm, so that the steel belt is moved out of the steel belt storage box and is moved to the position above the forepoling bar; controlling the steel belt transfer mechanism to reset; and controlling the anchor net lifting plate to fall down so that the anchor net falls above the steel belt.
Description
Technical Field
The invention belongs to the technical field of coal mine machinery, and particularly relates to a suspension anchor net for advance support and an automatic steel belt laying device and method.
Background
In the coal mine roadway driving operation, roadway support is important work which is concerned with the life safety of underground personnel, wherein steel belts are fully utilized in loosening difficult areas in cooperation with anchor rod support, and a good effect is achieved. The main effect of steel band is the steadiness that improves the country rock, can increase the frictional force between the piece of rock simultaneously to prevent that the piece of rock is not hard up to be out of shape, thereby reduce the tunnel surface because the tensile destruction that the roof bending sinks and cause, utilize the steel band to link into a whole each other the stock, thereby reinforcing whole ability of strutting.
At present, after the excavation of a roadway of each wheel is finished, the steel belt is paved and installed manually, during operation, the uneven part of the roadway roof is processed by pickaxe planing, then the steel belt is supported manually, and the steel belt is tightly attached to the roadway roof. During the entire process of steel strip laying, the roadway can be kept stable essentially only by the forces inside the surrounding rock, and this is extremely dangerous in poorly stable roadways due to the proximity of the operating personnel to the roadway driving face.
Therefore, the mode of manually laying the steel belt adopted at the present stage has the defects of low mechanization degree, high labor intensity of workers, poor operation safety and difficulty in guaranteeing the laying quality of the steel belt.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a suspension anchor net for forepoling and an automatic steel belt laying device and method, which abandon the mode of manually laying steel belts, and the steel belts can be automatically laid, thereby greatly reducing the labor intensity of workers, improving the safety of the workers during operation, and further improving the laying quality of the steel belts.
In order to achieve the purpose, the invention adopts the following technical scheme: a suspension type anchor net and steel belt automatic laying device for advance support comprises an advance support mechanism, an anchor net storage and transportation mechanism, an anchor net transfer mechanism, an anchor net spreading mechanism, a steel belt storage mechanism and a steel belt transfer mechanism; the anchor net storage and transportation mechanism is arranged on the side of a top beam of the advanced support mechanism, the anchor net transfer mechanism is arranged on the side of a front canopy of the advanced support mechanism, and the anchor net storage and transportation mechanism and the anchor net transfer mechanism are distributed on the same side; the anchor net spreading mechanism is arranged at the front end of a front cantilever of the advance support mechanism; the steel belt storage mechanism is arranged below a front canopy of the advance support mechanism; the steel belt transfer mechanism is arranged in the middle of the front canopy behind the steel belt storage mechanism.
The anchor net storage and transportation mechanism comprises an anchor net storage and transportation rack, an anchor net storage and transportation hydraulic motor, an anchor net storage and transportation driving chain wheel, an anchor net storage and transportation driven chain wheel and an anchor net storage and transportation chain; the anchor net storage and transportation machine frame is horizontally and fixedly arranged on a top beam of the advanced support mechanism, the anchor net storage and transportation hydraulic motor is horizontally and fixedly arranged at the front end of the anchor net storage and transportation machine frame, the anchor net storage and transportation driving chain wheel is fixedly sleeved on a power output shaft of the anchor net storage and transportation hydraulic motor, the anchor net storage and transportation driven chain wheel is arranged at the rear end of the anchor net storage and transportation machine frame, the anchor net storage and transportation driving chain wheel and the anchor net storage and transportation driven chain wheel are in transmission connection through an anchor net storage and transportation chain, a plurality of anchor net hooks are uniformly distributed on the anchor net storage and transportation chain wheel, and the anchor net hooks are used for.
The anchor net transferring mechanism comprises an anchor net transferring base, an anchor net transferring lever and a lever swinging driving cylinder; the anchor net transferring base is fixedly arranged on a top beam of an advance support mechanism, the end part of a cylinder barrel of the lever swing driving cylinder is hinged to the anchor net transferring base, the end part of a piston rod of the lever swing driving cylinder is hinged to one end of the anchor net transferring lever, a fulcrum rotating shaft at the middle part of the anchor net transferring lever is horizontally and fixedly connected to a forepoling beam of the advance support mechanism, the other end of the anchor net transferring lever is a free end, a rolled anchor net limiting plate is arranged at the end part of the free end of the anchor net transferring lever, the rolled anchor net limiting plate is of a sliding locking structure, a rolled anchor net limiting clamping block is fixedly arranged on the anchor net transferring lever at the rear side of the rolled anchor net limiting plate, and the rolled anchor net is sleeved on the anchor net transferring lever between the rolled anchor net limiting.
The number of the anchor net spreading mechanisms is two, and the two sets of anchor net spreading mechanisms are distributed in parallel; the anchor net spreading mechanism comprises a first anchor net spreading hydraulic motor, a second anchor net spreading hydraulic motor, a first anchor net spreading chain wheel, a second anchor net spreading chain wheel and an anchor net spreading chain; the first anchor net spreading hydraulic motor and the second anchor net spreading hydraulic motor both adopt double-end hydraulic motors, the first anchor net spreading hydraulic motor is installed at the front end of a front canopy at the edge of the advance support mechanism, the second anchor net spreading hydraulic motor is installed at the front end of the front canopy in the middle of the advance support mechanism, first anchor net spreading chain wheels are installed at two ends of a power output shaft of the first anchor net spreading hydraulic motor, second anchor net spreading chain wheels are installed at two ends of a power output shaft of the second anchor net spreading hydraulic motor, the first anchor net spreading chain wheels and the second anchor net spreading chain wheels are in transmission connection through anchor net spreading chains, and a plurality of anchor net spreading shifting teeth are evenly distributed on the anchor net spreading chains; and a steel belt assembly abdicating gap is reserved between the two sets of anchor net spreading mechanisms, anchor net guide plates are arranged on the front canopy at two sides of the steel belt assembly abdicating gap, the anchor net guide plates are horizontal in the initial state, and the anchor net guide plates have upward turning freedom degrees.
An anchor net lifting mechanism is arranged on the front canopy behind the anchor net spreading mechanism, and comprises an anchor net lifting plate, an anchor net lifting driving cylinder and an anchor net lifting support; the anchor net lifting support is fixedly arranged on the front cantilever, the anchor net lifting plate is positioned above the anchor net lifting support, the rear end of the anchor net lifting plate is hinged to the anchor net lifting support, and the front end of the anchor net lifting plate is a free end; the anchor net lifting driving cylinder is located between the anchor net lifting plate and the anchor net lifting support, the end of a cylinder barrel of the anchor net lifting driving cylinder is hinged to the anchor net lifting support, and the end of a piston rod of the anchor net lifting driving cylinder is hinged to the middle of the lower surface of the anchor net lifting plate.
The steel band storage mechanism comprises a steel band storage box and an automatic steel band jacking spring, the steel band storage box is fixedly hoisted below a forepoling beam of the advance support mechanism, the automatic steel band jacking spring is vertically installed at the bottom of the steel band storage box, a steel band supporting plate is arranged at the top of the automatic steel band jacking spring, a plurality of steel bands are stacked on the steel band supporting plate, a strip seam-shaped steel band outlet is formed in the top of the steel band storage box, and a foam base plate is installed between every two adjacent steel bands.
The steel belt transferring mechanism comprises a steel belt transferring base, a steel belt transferring telescopic arm, a steel belt transferring clamping hand and a telescopic arm swinging driving cylinder; the steel band transport mechanism is located in the middle of two forestope at anchor net deflector rear, the steel band is transported the base and is adorned admittedly on the forestope, the steel band is transported flexible arm rear end and is articulated on the base is transported to the steel band, the centre gripping hand is transported to the steel band and installs and transport flexible arm front end at the steel band, the cylinder tip that flexible arm pendulum changes the driving cylinder articulates on the base is transported to the steel band, and flexible arm pendulum changes the piston rod tip of driving cylinder and articulates on the flexible arm is transported to the steel band.
A suspension anchor net for advance support and an automatic steel belt laying method are adopted, and the suspension anchor net for advance support and the automatic steel belt laying device comprise the following steps:
the method comprises the following steps: firstly, hanging a prepared roll-shaped anchor net on an anchor net hook of an anchor net storage and transportation chain from the rearmost end of an anchor net storage and transportation rack by an underground operator, then starting an anchor net storage and transportation hydraulic motor to drive the anchor net storage and transportation chain to operate, so that the anchor net hook with the roll-shaped anchor net hung thereon moves forwards, continuing hanging the roll-shaped anchor net on an idle anchor net hook along with the operation of the anchor net storage and transportation chain until a first roll-shaped anchor net hung thereon moves to the foremost end of the anchor net storage and transportation rack, and stopping the anchor net storage and transportation hydraulic motor at the moment;
step two: the piston rod of the control lever swing driving cylinder extends out to enable the anchor net transfer lever to rotate around the fulcrum rotating shaft until the free end of the anchor net transfer lever deflects downwards to a specified position, then the coiled anchor net limiting plate is unlocked, then the coiled anchor net at the foremost end of the anchor net storing and transporting rack is taken down, the taken-down coiled anchor net is sleeved on the anchor net transfer lever, after the inner end of the coiled anchor net abuts against the coiled anchor net limiting fixture block, the coiled anchor net limiting plate is locked again, and at the moment, the coiled anchor net is limited between the coiled anchor net limiting plate and the coiled anchor net limiting fixture block; finally, the piston rod of the control lever swing driving cylinder retracts until the anchor net transfer lever returns to the horizontal state; meanwhile, after the first rolled anchor net is taken down, the following rolled anchor net moves forwards for a set distance under the driving of the anchor net storage and transportation hydraulic motor until a gap left by taking the rolled anchor net is filled;
step three: the first anchor net spreading hydraulic motor and the second anchor net spreading hydraulic motor in the two sets of anchor net spreading mechanisms are synchronously started to drive the anchor net spreading chains to run, when the anchor net spreading shifting teeth pass through the joint parts of the rolled anchor net, the anchor net spreading shifting teeth are inserted into the meshes, along with the movement of the anchor net spreading shifting teeth, the joint parts of the rolled anchor net are driven to synchronously move, and at the moment, the anchor net is gradually spread into a plane shape from the roll shape; when the planar anchor net is separated from the first set of anchor net spreading mechanism, the planar anchor net slides to the second set of anchor net spreading mechanism along the anchor net guide plate, the second set of anchor net spreading mechanism continues to spread the anchor net until the anchor net is completely spread into a plane from a roll shape, and at the moment, the first anchor net spreading hydraulic motor and the second anchor net spreading hydraulic motor are stopped;
step four: controlling a piston rod of the anchor net lifting driving cylinder to extend out, so that the anchor net lifting plate is lifted upwards, and further lifting the anchor net which is positioned on the plane above the anchor net lifting plate away from the forepoling bar;
step five: controlling a steel belt transfer telescopic arm to extend out, enabling a steel belt transfer clamping hand to move right above a steel belt, clamping the steel belt on the uppermost layer of a steel belt storage box by the steel belt transfer clamping hand, then continuing to control the steel belt transfer telescopic arm to extend out, enabling the steel belt to move out of the steel belt storage box from a strip seam-shaped steel belt outlet until the steel belt moves to the front of a forepoling beam, and enabling the steel belt on the second layer from the upper layer to ascend to the topmost layer under the action of an automatic steel belt jacking spring in the process; then a piston rod of the telescopic arm swing driving cylinder is controlled to extend out, so that the steel belt transferring telescopic arm swings upwards until the steel belt clamped by the steel belt transferring clamping hand moves to the position obliquely above the forestope, the steel belt transferring telescopic arm can upwards jack the anchor net guide plate in the process, and then the anchor net guide plate can automatically fall under the action of gravity and restore to the initial horizontal state; then controlling the steel belt transfer telescopic arm to retract until the steel belt falls on the forepoling beam, loosening the steel belt transfer clamping hand at the moment, leaving the steel belt on the upper surface of the forepoling beam, and finally controlling the steel belt transfer telescopic arm to return to the initial position;
step six: controlling a piston rod of the anchor net lifting driving cylinder to retract, so that the anchor net lifting plate falls back to a horizontal initial state, and further enabling the planar anchor net to fall on the upper surface of the steel belt to finish the laying of the anchor net and the steel belt;
step seven: and repeating the second step to the sixth step to realize the continuous laying of the anchor net and the steel belt.
The invention has the beneficial effects that:
the suspension anchor net for forepoling and the automatic steel belt laying device and method provided by the invention have the advantages that the mode of manually laying the steel belt is abandoned, the steel belt can be automatically laid, the labor intensity of workers is greatly reduced, the safety of the workers during operation is improved, and the steel belt laying quality is further improved.
Drawings
FIG. 1 is a schematic structural view of a suspension anchor net and an automatic steel belt laying device for forepoling according to the present invention;
FIG. 2 is a schematic structural view of the anchor net storage and transportation mechanism of the present invention;
FIG. 3 is a schematic structural view of an anchor net transfer mechanism of the present invention;
FIG. 4 is a schematic structural view of an anchor net spreading mechanism and an anchor net lifting mechanism according to the present invention;
FIG. 5 is a schematic structural view of a steel strip storage mechanism of the present invention;
FIG. 6 is a schematic structural view of a steel strip transfer mechanism of the present invention;
in the figure, 1-a forepoling mechanism, 2-an anchor net storage and transportation mechanism, 3-an anchor net transportation mechanism, 4-an anchor net spreading mechanism, 5-a steel belt storage mechanism, 6-a steel belt transportation mechanism, 7-a top beam, 8-a front canopy, 9-an anchor net storage and transportation rack, 10-an anchor net storage and transportation hydraulic motor, 11-an anchor net storage and transportation driving chain wheel, 12-an anchor net storage and transportation driven chain wheel, 13-an anchor net storage and transportation chain, 14-an anchor net hook, 15-a roll-shaped anchor net, 16-an anchor net transportation base, 17-an anchor net transportation lever, 18-a lever swing driving cylinder, 19-a fulcrum rotating shaft, 20-a roll-shaped anchor net limiting plate, 21-a roll-shaped anchor net limiting clamping block, 22-a first anchor net spreading hydraulic motor, 23-a second anchor net spreading hydraulic motor, 24-a first anchor net spreading chain wheel, 25-a second anchor net spreading chain wheel, 26-an anchor net spreading chain, 27-an anchor net shifting tooth and 28-an anchor net spreading guide plate, 29-an anchor net lifting plate, 30-an anchor net lifting driving cylinder, 31-an anchor net lifting support, 32-a steel belt storage box, 33-a steel belt automatic lifting spring, 34-a steel belt supporting plate, 35-, 36-a steel belt strip slit-shaped steel belt outlet, 37-a foam backing plate, 38-a steel belt transferring base, 39-a steel belt transferring telescopic arm, 40-a steel belt transferring clamping hand and 41-a telescopic arm swinging driving cylinder.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 6, a suspension type anchor net and steel belt automatic laying device for advance support comprises an advance support mechanism 1, an anchor net storage and transportation mechanism 2, an anchor net transfer mechanism 3, an anchor net spreading mechanism 4, a steel belt storage mechanism 5 and a steel belt transfer mechanism 6; the anchor net storage and transportation mechanism 2 is arranged on the side of a top beam 7 of the advanced support mechanism 1, the anchor net transfer mechanism 3 is arranged on the side of a front canopy 8 of the advanced support mechanism 1, and the anchor net storage and transportation mechanism 2 and the anchor net transfer mechanism 3 are distributed on the same side; the anchor net spreading mechanism 4 is arranged at the front end of a front cantilever 8 of the advance support mechanism 1; the steel strip storage mechanism 5 is arranged below a front canopy 8 of the advance support mechanism 1; the steel belt transfer mechanism 6 is arranged in the middle of the front cantilever 8 behind the steel belt storage mechanism 5.
The anchor net storage and transportation mechanism 2 comprises an anchor net storage and transportation rack 9, an anchor net storage and transportation hydraulic motor 10, an anchor net storage and transportation driving chain wheel 11, an anchor net storage and transportation driven chain wheel 12 and an anchor net storage and transportation chain 13; the anchor net storage and transportation rack 9 is horizontally and fixedly arranged on a top beam 7 of the advanced support mechanism 1, the anchor net storage and transportation hydraulic motor 10 is horizontally and fixedly arranged at the front end of the anchor net storage and transportation rack 9, the anchor net storage and transportation driving chain wheel 11 is fixedly sleeved on a power output shaft of the anchor net storage and transportation hydraulic motor 10, the anchor net storage and transportation driven chain wheel 12 is arranged at the rear end of the anchor net storage and transportation rack 9, the anchor net storage and transportation driving chain wheel 11 and the anchor net storage and transportation driven chain wheel 12 are in transmission connection through an anchor net storage and transportation chain 13, a plurality of anchor net hooks 14 are uniformly distributed on the anchor net storage and transportation chain 13, and the anchor net hooks 14 are used for hanging a rolled anchor net.
The anchor net transferring mechanism 3 comprises an anchor net transferring base 16, an anchor net transferring lever 17 and a lever swinging driving cylinder 18; the anchor net transferring base 16 is fixedly arranged on a top beam 7 of the advance support mechanism 1, the end part of a cylinder barrel of the lever swing driving cylinder 18 is hinged to the anchor net transferring base 16, the end part of a piston rod of the lever swing driving cylinder 18 is hinged to one end of an anchor net transferring lever 17, a fulcrum rotating shaft 19 in the middle of the anchor net transferring lever 17 is horizontally and fixedly connected to a front cantilever 8 of the advance support mechanism 1, the other end of the anchor net transferring lever 17 is a free end, a rolled anchor net limiting plate 20 is arranged at the end part of the free end of the anchor net transferring lever 17, the rolled anchor net limiting plate 20 is of a sliding locking structure, a rolled anchor net limiting fixture block 21 is fixedly arranged on the anchor net transferring lever 17 at the rear side of the rolled anchor net limiting plate 20, and the rolled anchor net 15 is sleeved on the anchor net lever 17 between the rolled anchor net limiting plate 20 and the rolled anchor net.
The number of the anchor net spreading mechanisms 4 is two, and the two anchor net spreading mechanisms 4 are distributed in parallel; the anchor net spreading mechanism 4 comprises a first anchor net spreading hydraulic motor 22, a second anchor net spreading hydraulic motor 23, a first anchor net spreading chain wheel 24, a second anchor net spreading chain wheel 25 and an anchor net spreading chain 26; the first anchor net spreading hydraulic motor 22 and the second anchor net spreading hydraulic motor 23 both adopt double-end hydraulic motors, the first anchor net spreading hydraulic motor 22 is installed at the front end of a front canopy 8 on the edge of the advance support mechanism 1, the second anchor net spreading hydraulic motor 23 is installed at the front end of the front canopy 8 in the middle of the advance support mechanism 1, first anchor net spreading chain wheels 24 are installed at two ends of a power output shaft of the first anchor net spreading hydraulic motor 22, second anchor net spreading chain wheels 25 are installed at two ends of the power output shaft of the second anchor net spreading hydraulic motor 23, the first anchor net spreading chain wheels 24 and the second anchor net spreading chain wheels 25 are in transmission connection through anchor net spreading chains 26, and a plurality of anchor net shifting teeth 27 are evenly distributed on the anchor net spreading chains 26; and a steel belt assembling abdicating gap is reserved between the two sets of the anchor net spreading mechanisms 4, anchor net guide plates 28 are arranged on the front cantilever beams 8 at two sides of the steel belt assembling abdicating gap, the anchor net guide plates 27 are horizontal in the initial state, and the anchor net guide plates 28 have upward overturning freedom.
An anchor net lifting mechanism is arranged on the front cantilever 8 behind the anchor net spreading mechanism 4, and comprises an anchor net lifting plate 29, an anchor net lifting driving cylinder 30 and an anchor net lifting support 31; the anchor net lifting support 31 is fixedly arranged on the forepoling 8, the anchor net lifting plate 29 is positioned above the anchor net lifting support 31, the rear end of the anchor net lifting plate 29 is hinged on the anchor net lifting support 31, and the front end of the anchor net lifting plate 29 is a free end; the anchor net lifting driving cylinder 30 is positioned between the anchor net lifting plate 29 and the anchor net lifting support 31, the end part of the cylinder barrel of the anchor net lifting driving cylinder 30 is hinged on the anchor net lifting support 31, and the end part of the piston rod of the anchor net lifting driving cylinder 30 is hinged in the middle of the lower surface of the anchor net lifting plate 29.
The steel band storage mechanism 5 comprises a steel band storage box 32 and an automatic steel band jacking spring 33, the steel band storage box 32 is fixedly hoisted below a forepoling 8 of the advance support mechanism 1, the automatic steel band jacking spring 33 is vertically installed at the bottom of the steel band storage box 32, a steel band supporting plate 34 is arranged at the top of the automatic steel band jacking spring 33, a plurality of steel bands 35 are stacked on the steel band supporting plate 34, a strip seam-shaped steel band outlet 36 is formed in the top of the steel band storage box 32, and a foam backing plate 37 is installed between the adjacent steel bands 35.
The steel belt transferring mechanism 6 comprises a steel belt transferring base 38, a steel belt transferring telescopic arm 39, a steel belt transferring clamping hand 40 and a telescopic arm swinging driving cylinder 41; the steel band transport mechanism 6 is located in the middle of two forepoling 8 at anchor net deflector 28 rear, steel band transportation base 38 adorns admittedly on the forepoling 8, the steel band is transported flexible arm 39 rear end and is articulated on steel band transportation base 38, the centre gripping hand 40 is transported to the steel band and installs and transport flexible arm 39 front end at the steel band, the cylinder tip that flexible arm pendulum changes actuating cylinder 41 articulates on steel band transportation base 38, and flexible arm pendulum changes actuating cylinder 41's piston rod tip articulates on steel band transportation flexible arm 39.
A suspension anchor net for advance support and an automatic steel belt laying method are adopted, and the suspension anchor net for advance support and the automatic steel belt laying device comprise the following steps:
the method comprises the following steps: firstly, hanging a prepared roll-shaped anchor net 15 on an anchor net hook 14 of an anchor net storage and transportation chain 13 from the rearmost end of an anchor net storage and transportation rack 9 by an underground operator, then starting an anchor net storage and transportation hydraulic motor 10 to drive the anchor net storage and transportation chain 13 to operate, moving the anchor net hook 14 with the roll-shaped anchor net 15 forward, continuing hanging the roll-shaped anchor net 15 on the idle anchor net hook 14 along with the operation of the anchor net storage and transportation chain 13 until the first roll-shaped anchor net 15 which is hung moves to the foremost end of the anchor net storage and transportation rack 9, and stopping the anchor net storage and transportation hydraulic motor 10 at the moment;
step two: the piston rod of the control lever swing driving cylinder 18 extends out, so that the anchor net transfer lever 17 rotates around the fulcrum rotating shaft 19 until the free end of the anchor net transfer lever 17 deflects downwards to a specified position, at the moment, the rolled anchor net limiting plate 20 is unlocked, then, the rolled anchor net 15 at the foremost end of the anchor net storing and transporting rack 9 is taken down, the taken-down rolled anchor net 15 is sleeved on the anchor net transfer lever 17, after the inner end of the rolled anchor net 15 abuts against the rolled anchor net limiting fixture block 21, the rolled anchor net limiting plate 20 is locked again, and at the moment, the rolled anchor net 15 is limited between the rolled anchor net limiting plate 20 and the rolled anchor net limiting fixture block 21; finally, the piston rod of the control lever swing driving cylinder 18 retracts until the anchor net transfer lever 17 returns to the horizontal state; meanwhile, after the first roll-shaped anchor net 15 is taken down, the following roll-shaped anchor net 15 moves forwards for a set distance under the driving of the anchor net storage and transportation hydraulic motor 10 until a gap left by taking the roll-shaped anchor net 15 is filled;
step three: synchronously starting a first anchor net spreading hydraulic motor 22 and a second anchor net spreading hydraulic motor 23 in the two sets of anchor net spreading mechanisms 4 to drive an anchor net spreading chain 26 to run, inserting the anchor net spreading shifting teeth 27 into meshes when passing through joint parts of the rolled anchor net 15, and driving the joint parts of the rolled anchor net 15 to synchronously move along with the movement of the anchor net spreading shifting teeth 27, wherein the anchor net is gradually spread into a plane shape from the roll shape; when the planar anchor net is separated from the first set of anchor net spreading mechanism 4, the planar anchor net slides to the second set of anchor net spreading mechanism 4 along the anchor net guide plate 27, the second set of anchor net spreading mechanism 4 continues to spread the anchor net until the anchor net is completely spread into a planar shape from a roll shape, and at the moment, the first anchor net spreading hydraulic motor 22 and the second anchor net spreading hydraulic motor 23 are stopped;
step four: the piston rod of the anchor net lifting driving cylinder 30 is controlled to extend out, so that the anchor net lifting plate 29 is lifted upwards, and the anchor net which is positioned above the anchor net lifting plate 29 and is in a plane shape is lifted away from the forepoling bar 8;
step five: controlling the steel belt transferring telescopic arm 39 to extend, enabling the steel belt transferring clamping hand 40 to move to a position right above the steel belt 35, clamping the steel belt 35 on the uppermost layer of the steel belt storage box 32 by the steel belt transferring clamping hand 40, then continuously controlling the steel belt transferring telescopic arm 39 to extend, enabling the steel belt 35 to move out of the steel belt storage box 32 from the slit-shaped steel belt outlet 36 until the steel belt 35 moves to the front of the forepoling beam 8, and enabling the steel belt 35 on the second layer from the top to rise to the uppermost layer under the action of the steel belt automatic jacking spring 33 in the process; then the piston rod of the telescopic arm swing driving cylinder 41 is controlled to extend out, so that the steel belt transferring telescopic arm 39 swings upwards until the steel belt clamped by the steel belt transferring clamping hand 40 moves to the obliquely upper part of the forepoling bar 8, the steel belt transferring telescopic arm 39 can upwards jack the anchor net guide plate 27 in the process, and then the anchor net guide plate 27 automatically falls under the action of gravity and restores to the initial horizontal state; then controlling the steel belt transfer telescopic arm 39 to retract until the steel belt 35 falls on the forepoling 8, loosening the steel belt transfer clamping hand 40 at the moment, leaving the steel belt 35 on the upper surface of the forepoling 8, and finally controlling the steel belt transfer telescopic arm 39 to return to the initial position;
step six: controlling the retraction of a piston rod of the anchor net lifting driving cylinder 30 to enable the anchor net lifting plate 29 to fall back to a horizontal initial state, and further enabling the planar anchor net to fall on the upper surface of the steel belt 35 to complete the laying of the anchor net and the steel belt;
step seven: and repeating the second step to the sixth step to realize the continuous laying of the anchor net and the steel belt.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides a suspension anchor net and automatic laying device of steel band for advance support which characterized in that: the device comprises a forepoling mechanism, an anchor net storage and transportation mechanism, an anchor net transfer mechanism, an anchor net spreading mechanism, a steel belt storage mechanism and a steel belt transfer mechanism; the anchor net storage and transportation mechanism is arranged on the side of a top beam of the advanced support mechanism, the anchor net transfer mechanism is arranged on the side of a front canopy of the advanced support mechanism, and the anchor net storage and transportation mechanism and the anchor net transfer mechanism are distributed on the same side; the anchor net spreading mechanism is arranged at the front end of a front cantilever of the advance support mechanism; the steel belt storage mechanism is arranged below a front canopy of the advance support mechanism; the steel belt transfer mechanism is arranged in the middle of the front canopy behind the steel belt storage mechanism.
2. The automatic laying device of the suspension anchor net and the steel belt for advance support according to claim 1, characterized in that: the anchor net storage and transportation mechanism comprises an anchor net storage and transportation rack, an anchor net storage and transportation hydraulic motor, an anchor net storage and transportation driving chain wheel, an anchor net storage and transportation driven chain wheel and an anchor net storage and transportation chain; the anchor net storage and transportation machine frame is horizontally and fixedly arranged on a top beam of the advanced support mechanism, the anchor net storage and transportation hydraulic motor is horizontally and fixedly arranged at the front end of the anchor net storage and transportation machine frame, the anchor net storage and transportation driving chain wheel is fixedly sleeved on a power output shaft of the anchor net storage and transportation hydraulic motor, the anchor net storage and transportation driven chain wheel is arranged at the rear end of the anchor net storage and transportation machine frame, the anchor net storage and transportation driving chain wheel and the anchor net storage and transportation driven chain wheel are in transmission connection through an anchor net storage and transportation chain, a plurality of anchor net hooks are uniformly distributed on the anchor net storage and transportation chain wheel, and the anchor net hooks are used for.
3. The automatic laying device of the suspension anchor net and the steel belt for advance support according to claim 1, characterized in that: the anchor net transferring mechanism comprises an anchor net transferring base, an anchor net transferring lever and a lever swinging driving cylinder; the anchor net transferring base is fixedly arranged on a top beam of an advance support mechanism, the end part of a cylinder barrel of the lever swing driving cylinder is hinged to the anchor net transferring base, the end part of a piston rod of the lever swing driving cylinder is hinged to one end of the anchor net transferring lever, a fulcrum rotating shaft at the middle part of the anchor net transferring lever is horizontally and fixedly connected to a forepoling beam of the advance support mechanism, the other end of the anchor net transferring lever is a free end, a rolled anchor net limiting plate is arranged at the end part of the free end of the anchor net transferring lever, the rolled anchor net limiting plate is of a sliding locking structure, a rolled anchor net limiting clamping block is fixedly arranged on the anchor net transferring lever at the rear side of the rolled anchor net limiting plate, and the rolled anchor net is sleeved on the anchor net transferring lever between the rolled anchor net limiting.
4. The automatic laying device of the suspension anchor net and the steel belt for advance support according to claim 1, characterized in that: the number of the anchor net spreading mechanisms is two, and the two sets of anchor net spreading mechanisms are distributed in parallel; the anchor net spreading mechanism comprises a first anchor net spreading hydraulic motor, a second anchor net spreading hydraulic motor, a first anchor net spreading chain wheel, a second anchor net spreading chain wheel and an anchor net spreading chain; the first anchor net spreading hydraulic motor and the second anchor net spreading hydraulic motor both adopt double-end hydraulic motors, the first anchor net spreading hydraulic motor is installed at the front end of a front canopy at the edge of the advance support mechanism, the second anchor net spreading hydraulic motor is installed at the front end of the front canopy in the middle of the advance support mechanism, first anchor net spreading chain wheels are installed at two ends of a power output shaft of the first anchor net spreading hydraulic motor, second anchor net spreading chain wheels are installed at two ends of a power output shaft of the second anchor net spreading hydraulic motor, the first anchor net spreading chain wheels and the second anchor net spreading chain wheels are in transmission connection through anchor net spreading chains, and a plurality of anchor net spreading shifting teeth are evenly distributed on the anchor net spreading chains; and a steel belt assembly abdicating gap is reserved between the two sets of anchor net spreading mechanisms, anchor net guide plates are arranged on the front canopy at two sides of the steel belt assembly abdicating gap, the anchor net guide plates are horizontal in the initial state, and the anchor net guide plates have upward turning freedom degrees.
5. The automatic laying device of the suspension anchor net and the steel belt for advance support according to claim 4, characterized in that: an anchor net lifting mechanism is arranged on the front canopy behind the anchor net spreading mechanism, and comprises an anchor net lifting plate, an anchor net lifting driving cylinder and an anchor net lifting support; the anchor net lifting support is fixedly arranged on the front cantilever, the anchor net lifting plate is positioned above the anchor net lifting support, the rear end of the anchor net lifting plate is hinged to the anchor net lifting support, and the front end of the anchor net lifting plate is a free end; the anchor net lifting driving cylinder is located between the anchor net lifting plate and the anchor net lifting support, the end of a cylinder barrel of the anchor net lifting driving cylinder is hinged to the anchor net lifting support, and the end of a piston rod of the anchor net lifting driving cylinder is hinged to the middle of the lower surface of the anchor net lifting plate.
6. The automatic laying device of the suspension anchor net and the steel belt for advance support according to claim 1, characterized in that: the steel band storage mechanism comprises a steel band storage box and an automatic steel band jacking spring, the steel band storage box is fixedly hoisted below a forepoling beam of the advance support mechanism, the automatic steel band jacking spring is vertically installed at the bottom of the steel band storage box, a steel band supporting plate is arranged at the top of the automatic steel band jacking spring, a plurality of steel bands are stacked on the steel band supporting plate, a strip seam-shaped steel band outlet is formed in the top of the steel band storage box, and a foam base plate is installed between every two adjacent steel bands.
7. The automatic laying device of the suspension anchor net and the steel belt for advance support according to claim 1, characterized in that: the steel belt transferring mechanism comprises a steel belt transferring base, a steel belt transferring telescopic arm, a steel belt transferring clamping hand and a telescopic arm swinging driving cylinder; the steel band transport mechanism is located in the middle of two forestope at anchor net deflector rear, the steel band is transported the base and is adorned admittedly on the forestope, the steel band is transported flexible arm rear end and is articulated on the base is transported to the steel band, the centre gripping hand is transported to the steel band and installs and transport flexible arm front end at the steel band, the cylinder tip that flexible arm pendulum changes the driving cylinder articulates on the base is transported to the steel band, and flexible arm pendulum changes the piston rod tip of driving cylinder and articulates on the flexible arm is transported to the steel band.
8. A method for automatically laying a suspension anchor net and a steel belt for advance support, which adopts the suspension anchor net and the steel belt automatic laying device for advance support of claim 1, and is characterized by comprising the following steps:
the method comprises the following steps: firstly, hanging a prepared roll-shaped anchor net on an anchor net hook of an anchor net storage and transportation chain from the rearmost end of an anchor net storage and transportation rack by an underground operator, then starting an anchor net storage and transportation hydraulic motor to drive the anchor net storage and transportation chain to operate, so that the anchor net hook with the roll-shaped anchor net hung thereon moves forwards, continuing hanging the roll-shaped anchor net on an idle anchor net hook along with the operation of the anchor net storage and transportation chain until a first roll-shaped anchor net hung thereon moves to the foremost end of the anchor net storage and transportation rack, and stopping the anchor net storage and transportation hydraulic motor at the moment;
step two: the piston rod of the control lever swing driving cylinder extends out to enable the anchor net transfer lever to rotate around the fulcrum rotating shaft until the free end of the anchor net transfer lever deflects downwards to a specified position, then the coiled anchor net limiting plate is unlocked, then the coiled anchor net at the foremost end of the anchor net storing and transporting rack is taken down, the taken-down coiled anchor net is sleeved on the anchor net transfer lever, after the inner end of the coiled anchor net abuts against the coiled anchor net limiting fixture block, the coiled anchor net limiting plate is locked again, and at the moment, the coiled anchor net is limited between the coiled anchor net limiting plate and the coiled anchor net limiting fixture block; finally, the piston rod of the control lever swing driving cylinder retracts until the anchor net transfer lever returns to the horizontal state; meanwhile, after the first rolled anchor net is taken down, the following rolled anchor net moves forwards for a set distance under the driving of the anchor net storage and transportation hydraulic motor until a gap left by taking the rolled anchor net is filled;
step three: the first anchor net spreading hydraulic motor and the second anchor net spreading hydraulic motor in the two sets of anchor net spreading mechanisms are synchronously started to drive the anchor net spreading chains to run, when the anchor net spreading shifting teeth pass through the joint parts of the rolled anchor net, the anchor net spreading shifting teeth are inserted into the meshes, along with the movement of the anchor net spreading shifting teeth, the joint parts of the rolled anchor net are driven to synchronously move, and at the moment, the anchor net is gradually spread into a plane shape from the roll shape; when the planar anchor net is separated from the first set of anchor net spreading mechanism, the planar anchor net slides to the second set of anchor net spreading mechanism along the anchor net guide plate, the second set of anchor net spreading mechanism continues to spread the anchor net until the anchor net is completely spread into a plane from a roll shape, and at the moment, the first anchor net spreading hydraulic motor and the second anchor net spreading hydraulic motor are stopped;
step four: controlling a piston rod of the anchor net lifting driving cylinder to extend out, so that the anchor net lifting plate is lifted upwards, and further lifting the anchor net which is positioned on the plane above the anchor net lifting plate away from the forepoling bar;
step five: controlling a steel belt transfer telescopic arm to extend out, enabling a steel belt transfer clamping hand to move right above a steel belt, clamping the steel belt on the uppermost layer of a steel belt storage box by the steel belt transfer clamping hand, then continuing to control the steel belt transfer telescopic arm to extend out, enabling the steel belt to move out of the steel belt storage box from a strip seam-shaped steel belt outlet until the steel belt moves to the front of a forepoling beam, and enabling the steel belt on the second layer from the upper layer to ascend to the topmost layer under the action of an automatic steel belt jacking spring in the process; then a piston rod of the telescopic arm swing driving cylinder is controlled to extend out, so that the steel belt transferring telescopic arm swings upwards until the steel belt clamped by the steel belt transferring clamping hand moves to the position obliquely above the forestope, the steel belt transferring telescopic arm can upwards jack the anchor net guide plate in the process, and then the anchor net guide plate can automatically fall under the action of gravity and restore to the initial horizontal state; then controlling the steel belt transfer telescopic arm to retract until the steel belt falls on the forepoling beam, loosening the steel belt transfer clamping hand at the moment, leaving the steel belt on the upper surface of the forepoling beam, and finally controlling the steel belt transfer telescopic arm to return to the initial position;
step six: controlling a piston rod of the anchor net lifting driving cylinder to retract, so that the anchor net lifting plate falls back to a horizontal initial state, and further enabling the planar anchor net to fall on the upper surface of the steel belt to finish the laying of the anchor net and the steel belt;
step seven: and repeating the second step to the sixth step to realize the continuous laying of the anchor net and the steel belt.
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| CN201911043879.7A CN110714793B (en) | 2019-10-30 | 2019-10-30 | Suspension type anchor net and steel belt automatic laying device and method for advanced support |
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