CN110284911B - Automatic circulating two-section steel belt laying device and method for excavating, supporting and anchoring combined unit - Google Patents
Automatic circulating two-section steel belt laying device and method for excavating, supporting and anchoring combined unit Download PDFInfo
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- CN110284911B CN110284911B CN201910675379.9A CN201910675379A CN110284911B CN 110284911 B CN110284911 B CN 110284911B CN 201910675379 A CN201910675379 A CN 201910675379A CN 110284911 B CN110284911 B CN 110284911B
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- steel belt
- bearing table
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- material taking
- circulating
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 367
- 239000010959 steel Substances 0.000 title claims abstract description 367
- 238000004873 anchoring Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 77
- 230000005641 tunneling Effects 0.000 claims abstract description 10
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
An automatic circulating two-section steel belt paving device and method for a digging-supporting-anchoring combined unit comprise a steel belt transferring mechanism, a steel belt feeding mechanism and a steel belt taking mechanism. The method comprises the following steps: placing the circulating two-section steel belt on a steel belt material taking bearing table, moving the folding steel belt bearing table to the position below the steel belt material taking bearing table, falling the steel belt material taking bearing table to enable the steel belt to be left on the folding steel belt bearing table, adjusting the circulating two-section steel belt to be V-shaped, moving the V-shaped steel belt to the position above the steel belt material feeding bearing table, enabling the steel belt to return to an unfolding state from the V-shaped steel belt, lifting the steel belt material feeding bearing table, and enabling the steel belt to be left on the steel belt material feeding bearing table; the steel belt feeding bearing table is moved forwards to the front of the front cantilever, the front cantilever is controlled to swing downwards, the steel belt feeding bearing table is controlled to be retracted, the steel belt is positioned above the front cantilever, the front cantilever is controlled to swing upwards, and the paving of a single steel belt is completed; and along with the tunneling, when the two sections of the steel belts of the circulation laid in advance reach the position right above the steel belt material taking bearing table, starting the circulation automatic laying of the steel belts.
Description
Technical Field
The invention belongs to the technical field of coal mine machinery, and particularly relates to a device and a method for automatically paving a circulating two-section steel belt for a digging, supporting and anchoring combined unit.
Background
In the coal mine tunnel tunneling operation, tunnel support is an important work related to life safety of underground personnel, wherein steel belts are fully utilized in loose difficult areas by matching with anchor rod support, and good effects are achieved. The main effect of steel band is to improve the steadiness of country rock, can increase the frictional force between the rock mass simultaneously to prevent rock mass loosening deformation, thereby reduce the tunnel surface and because the tensile damage that the roof crooked subsidence caused, utilize the steel band to link the stock each other into a whole, thereby reinforcing whole support ability.
At present, after each round of tunnel excavation is completed, the laying and the installation of the steel belt are completed by manpower, when in operation, the uneven part of the tunnel top plate is firstly subjected to pickaxe planing, and then the steel belt is supported by manpower, and the steel belt is tightly attached to the tunnel top plate. The roadway can be kept stable essentially only by means of forces inside the surrounding rock during the whole process of steel strip laying, and this is extremely dangerous in less stable roadways due to the proximity of the operators to the roadway driving surface.
Therefore, the mode of manually paving the steel belt adopted at the present stage has the defects of low mechanical degree, high labor intensity of workers, poor operation safety and difficult guarantee of the paving quality of the steel belt.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the automatic circulating two-section steel belt laying device and method for the excavating, supporting and anchoring combined unit, which abandon the mode of manually laying the steel belt, can automatically finish the laying of the steel belt, greatly reduce the labor intensity of workers, improve the safety of the workers during the operation, and further improve the laying quality of the steel belt.
In order to achieve the above purpose, the present invention adopts the following technical scheme: an automatic circulating two-section steel belt paving device for a digging, supporting and anchoring combined unit comprises a steel belt transferring mechanism, a steel belt feeding mechanism and a steel belt taking mechanism; the steel belt transfer mechanism is located under the top beam of the digging, supporting and anchoring combined unit, the steel belt feeding mechanism is located in front of the steel belt transfer mechanism, and the steel belt taking mechanism is located behind the steel belt transfer mechanism.
The steel belt transfer mechanism comprises a slide rail, a hydraulic motor, a driving sprocket, a driven sprocket, a chain, a slide table plate, a folding steel belt bearing table folding angle adjusting shifting block and a folding steel belt bearing table folding angle adjusting hydraulic cylinder; the sliding rail is fixedly hung under the top beam of the digging, supporting and anchoring combined unit through a hanging bracket, and is parallel to the top beam of the digging, supporting and anchoring combined unit; the hydraulic motor is arranged at one end of the sliding rail, the driving sprocket is fixedly arranged on a power output shaft of the hydraulic motor, the driven sprocket is arranged at the other end of the sliding rail, and the driven sprocket is connected with the driving sprocket through a chain; the sliding table plate is arranged on the sliding rail, the sliding table plate can linearly move along the sliding rail, the lower surface of the sliding table plate is fixedly connected to the chain, the folding steel belt bearing table is arranged on the upper surface of the sliding table plate, and the included angle between two support arms of the folding steel belt bearing table is adjustable; the folding steel belt bearing table folding angle adjusting poking block adopts a U-shaped structure, the folding steel belt bearing table folding angle adjusting poking block is positioned below the sliding rail, the bottom of the folding steel belt bearing table folding angle adjusting poking block is hinged with the lower surface of the sliding rail, and two U-shaped arms of the folding steel belt bearing table folding angle adjusting poking block are matched with two support arms of the folding steel belt bearing table in a poking way; the folding steel belt receiving table folding angle adjusting hydraulic cylinder is positioned below the sliding rail, the cylinder barrel end of the folding steel belt receiving table folding angle adjusting hydraulic cylinder is hinged to the lower surface of the sliding rail, and the piston rod end of the folding steel belt receiving table folding angle adjusting hydraulic cylinder is hinged to the folding steel belt receiving table folding angle adjusting shifting block; the end part of the sliding rail is provided with a folding angle reset baffle of the folding steel belt bearing table.
The steel belt feeding mechanism comprises a steel belt feeding bearing table, a steel belt feeding telescopic frame driving hydraulic cylinder, a lifting slide block base guide rail and a lifting slide block base driving hydraulic cylinder; the steel belt feeding telescopic frame is horizontally arranged, the steel belt feeding bearing table is connected to one end of the steel belt feeding telescopic frame, the lifting slide block base is connected to the other end of the steel belt feeding telescopic frame, and the steel belt feeding telescopic frame driving hydraulic cylinder is connected between the steel belt feeding telescopic frame and the lifting slide block base; the lifting slide block base guide rail is vertically and fixedly arranged on the slide rail, the lifting slide block base guide rail adopts a parallel double-rail structure, the lifting slide block base is arranged on the lifting slide block base guide rail, and the lifting slide block base can linearly move along the lifting slide block base guide rail; the cylinder barrel end of the lifting slide block base driving hydraulic cylinder is hinged to the lower surface of the sliding rail, and the end part of the piston rod of the lifting slide block base driving hydraulic cylinder is hinged to the lifting slide block base.
The steel belt material taking mechanism comprises a steel belt material taking bearing table, a steel belt material taking telescopic frame driving hydraulic cylinder and a fixed base; the steel belt material taking telescopic frame is vertically arranged on the fixed base, the fixed base is fixedly connected to the sliding rail, and the steel belt material taking telescopic frame driving hydraulic cylinder is connected between the steel belt material taking telescopic frame and the fixed base; the steel belt material taking bearing table is arranged at the top end of the steel belt material taking telescopic frame.
The automatic paving method of the circulating two-section steel belt for the excavating, supporting and anchoring combined unit adopts the automatic paving device of the circulating two-section steel belt for the excavating, supporting and anchoring combined unit, and comprises the following steps:
step one: placing a to-be-paved circulating two-section steel belt on a steel belt material taking bearing table from the rear of a top beam of the excavating, supporting and anchoring combined unit, wherein the circulating two-section steel belt is of a foldable structure, an included angle between two support arms of the circulating two-section steel belt is adjustable, and the circulating two-section steel belt is in a fully unfolded state at the moment, namely, the folding angle is equal to 180 degrees;
step two: starting a hydraulic motor, driving a chain to rotate through a driving chain wheel, and moving the folding steel belt carrying table to the position right below the steel belt material taking carrying table through the chain, wherein the folding steel belt carrying table is in a fully unfolded state at the moment, namely, when the folding angle is equal to 180 degrees;
step three: controlling the steel belt material taking telescopic frame to drive a piston rod of the hydraulic cylinder to retract so as to enable the steel belt material taking telescopic frame to be integrally shortened, and enabling the height of the steel belt material taking bearing table to be gradually reduced until two sections of circulating steel belts on the steel belt material taking bearing table fall on the folding steel belt bearing table;
step four: the hydraulic motor is reversely started, the driving chain wheel drives the chain to reversely rotate, the folio steel belt bearing table is moved to the position right above the folio steel belt bearing table folding angle adjusting and poking block through the chain, then the piston rod of the folio steel belt bearing table folding angle adjusting hydraulic cylinder is controlled to retract, so that the folio steel belt bearing table folding angle adjusting and poking block swings, the folio steel belt bearing table in a fully unfolded state is poked to a set folding angle state, and the folio steel belt bearing table and the circulating two sections of steel belts on the folio steel belt bearing table at the moment all take on a V-shaped structure; meanwhile, the steel belt material taking telescopic frame is controlled to drive a piston rod of the hydraulic cylinder to extend outwards, so that the steel belt material taking bearing table returns to the initial position;
step five: the hydraulic motor is continuously reversely started until the folio steel belt bearing table is moved to the position right above the steel belt feeding bearing table through a chain, and meanwhile, the folio steel belt bearing table is propped against the folio steel belt bearing table folding angle reset baffle to generate deformation, so that the folio steel belt bearing table and the circulating two-section steel belt on the folio steel belt bearing table are restored to a fully unfolded state from a V-shaped folio state;
step six: controlling the lifting slide block base to drive the piston rod of the hydraulic cylinder to retract so that the lifting slide block base moves upwards along the guide rail of the lifting slide block base until the steel belt feeding bearing table jacks up the circulating two-section steel belt on the folding steel belt bearing table;
step seven: controlling the steel belt feeding telescopic frame to drive a piston rod of the hydraulic cylinder to extend out so that the steel belt feeding bearing table moves to the front of the front cantilever of the tunneling-supporting-anchoring combined unit;
step eight: firstly controlling the front cantilever of the tunneling-supporting-anchoring combined unit to swing downwards, then controlling the steel belt feeding bearing table to retract, enabling the circulating second section of steel belts on the steel belt feeding bearing table to be positioned above the front cantilever of the tunneling-supporting-anchoring combined unit, then controlling the front cantilever of the tunneling-supporting-anchoring combined unit to swing upwards to be in a horizontal state, and finally enabling the circulating second section of steel belts to accurately enter the steel belt clamping grooves on the upper surface of the front cantilever of the tunneling-supporting-anchoring combined unit;
step nine: the steel belt feeding telescopic frame is controlled to drive the piston rod of the hydraulic cylinder to retract, and the lifting slide block base is controlled to drive the piston rod of the hydraulic cylinder to extend outwards, so that the steel belt feeding bearing table returns to the initial position, and the automatic laying of one circulating two-section steel belt is completed;
step ten: repeating the first step to the ninth step along with the continuous forward tunneling of the combined tunneling, supporting and anchoring unit, and completing the automatic laying of the second-section steel belt of the subsequent cycle;
step eleven: along with the advance of the excavating, supporting and anchoring combined unit, when a previously paved circulating two-section steel belt reaches the position right above the steel belt material taking bearing table, controlling the steel belt material taking telescopic frame to drive a piston rod of the hydraulic cylinder to extend outwards until the steel belt material taking bearing table is propped against a roadway top plate, so that the circulating two-section steel belt on the roadway top plate enters the steel belt material taking bearing table;
step twelve: when the digging and supporting combined unit moves forwards, the top beam of the digging and supporting combined unit is completely separated from the circulating two-section steel belt which is propped against the roadway top plate by the steel belt material taking bearing table, and then the steel belt material taking bearing table is controlled to move downwards, so that the steel belt material taking bearing table carrying the circulating two-section steel belt returns to the initial position;
step thirteen: and repeating the second step to the ninth step to realize the automatic circulating laying of the two-section circulating steel belt.
The invention has the beneficial effects that:
according to the automatic circulating two-section steel belt paving device and method for the excavating, supporting and anchoring combined unit, disclosed by the invention, a mode of manually paving the steel belt is abandoned, the steel belt can be automatically paved, the labor intensity of workers is greatly reduced, the safety of the workers in operation is improved, and the paving quality of the steel belt is further improved.
Drawings
FIG. 1 is a schematic structural view of an automatic circulating two-section steel belt laying device for a combined excavating, supporting and anchoring unit;
FIG. 2 is a schematic view of a steel belt transfer mechanism according to the present invention;
FIG. 3 is a schematic structural view of a steel strip feeding mechanism of the present invention;
FIG. 4 is a schematic view of a steel belt take-off mechanism according to the present invention;
in the drawing, a 1-steel belt transfer mechanism, a 2-steel belt feeding mechanism, a 3-steel belt taking mechanism, a 4-digging and supporting anchor combined unit top beam, a 5-sliding rail, a 6-hydraulic motor, a 7-driving chain wheel, a 8-driven chain wheel, a 9-chain, a 10-folding steel belt bearing table, a 11-folding steel belt bearing table angle adjusting shifting block, a 12-folding steel belt bearing table angle adjusting hydraulic cylinder, a 13-hanging bracket, a 14-steel belt feeding bearing table, a 15-steel belt feeding telescopic bracket, a 16-steel belt feeding telescopic bracket driving hydraulic cylinder, a 17-lifting slide block base, a 18-lifting slide block base guide rail, a 19-lifting slide block base driving hydraulic cylinder, a 20-steel belt taking bearing table, a 21-steel belt taking telescopic bracket, a 22-steel belt taking telescopic bracket driving hydraulic cylinder, a 23-fixed base, a 24-circulating two-section steel belt, a 25-supporting anchor combined unit front beam, and a 26-folding steel belt bearing table angle resetting baffle.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 4, the automatic circulating two-section steel belt laying device for the excavating, supporting and anchoring combined unit comprises a steel belt transfer mechanism 1, a steel belt feeding mechanism 2 and a steel belt taking mechanism 3; the steel belt transfer mechanism 1 is located under the top beam 4 of the excavating, supporting and anchoring combined unit, the steel belt feeding mechanism 2 is located in front of the steel belt transfer mechanism 1, and the steel belt taking mechanism 3 is located behind the steel belt transfer mechanism 1.
The steel belt transfer mechanism 2 comprises a slide rail 5, a hydraulic motor 6, a driving chain wheel 7, a driven chain wheel 8, a chain 9, a sliding table plate, a folding steel belt bearing table 10, a folding steel belt bearing table folding angle adjusting shifting block 11 and a folding steel belt bearing table folding angle adjusting hydraulic cylinder 12; the sliding rail 5 is fixedly hung under the top beam 4 of the combined tunneling, supporting and anchoring unit through a hanging bracket 13, and the sliding rail 5 is parallel to the top beam 4 of the combined tunneling, supporting and anchoring unit; the hydraulic motor 6 is arranged at one end of the slide rail 5, the driving sprocket 7 is fixedly arranged on a power output shaft of the hydraulic motor 6, the driven sprocket 8 is arranged at the other end of the slide rail 5, and the driven sprocket 8 is connected with the driving sprocket 7 through a chain 9; the sliding table plate is arranged on the sliding rail 5, the sliding table plate can linearly move along the sliding rail 5, the lower surface of the sliding table plate is fixedly connected to the chain 9, the folding steel belt bearing table 10 is arranged on the upper surface of the sliding table plate, and the included angle between two support arms of the folding steel belt bearing table 10 is adjustable; the folding steel belt bearing table folding angle adjusting poking block 11 adopts a U-shaped structure, the folding steel belt bearing table folding angle adjusting poking block 11 is positioned below the sliding rail 5, the bottom of the folding steel belt bearing table folding angle adjusting poking block 11 is hinged with the lower surface of the sliding rail 5, and two U-shaped arms of the folding steel belt bearing table folding angle adjusting poking block 11 are matched with two support arms of the folding steel belt bearing table 10 in a poking way; the folding steel belt receiving table folding angle adjusting hydraulic cylinder 12 is positioned below the sliding rail 5, the cylinder barrel end of the folding steel belt receiving table folding angle adjusting hydraulic cylinder 12 is hinged to the lower surface of the sliding rail 5, and the piston rod end of the folding steel belt receiving table folding angle adjusting hydraulic cylinder 12 is hinged to the folding steel belt receiving table folding angle adjusting shifting block 11; the end part of the sliding rail 5 is provided with a folding angle reset baffle 26 of the folding steel belt bearing table.
The steel belt feeding mechanism 2 comprises a steel belt feeding bearing table 14, a steel belt feeding telescopic frame 15, a steel belt feeding telescopic frame driving hydraulic cylinder 16, a lifting slide block base 17, a lifting slide block base guide rail 18 and a lifting slide block base driving hydraulic cylinder 19; the steel belt feeding telescopic frame 15 is horizontally arranged, the steel belt feeding bearing table 14 is connected to one end of the steel belt feeding telescopic frame 15, the lifting slide block base 17 is connected to the other end of the steel belt feeding telescopic frame 15, and the steel belt feeding telescopic frame driving hydraulic cylinder 16 is connected between the steel belt feeding telescopic frame 15 and the lifting slide block base 17; the lifting slider base guide rail 18 is vertically and fixedly arranged on the slide rail 5, the lifting slider base guide rail 18 adopts a parallel double-rail structure, the lifting slider base 17 is arranged on the lifting slider base guide rail 18, and the lifting slider base 17 can linearly move along the lifting slider base guide rail 18; the cylinder barrel end of the lifting slide block base driving hydraulic cylinder 19 is hinged to the lower surface of the sliding rail 5, and the piston rod end of the lifting slide block base driving hydraulic cylinder 19 is hinged to the lifting slide block base 17.
The steel belt material taking mechanism 3 comprises a steel belt material taking bearing table 20, a steel belt material taking telescopic frame 21, a steel belt material taking telescopic frame driving hydraulic cylinder 22 and a fixed base 23; the steel belt material taking telescopic frame 21 is vertically arranged on the fixed base 23, the fixed base 23 is fixedly connected to the sliding rail 5, and the steel belt material taking telescopic frame driving hydraulic cylinder 22 is connected between the steel belt material taking telescopic frame 21 and the fixed base 23; the steel belt material taking bearing table 20 is arranged at the top end of the steel belt material taking telescopic frame 21.
The automatic paving method of the circulating two-section steel belt for the excavating, supporting and anchoring combined unit adopts the automatic paving device of the circulating two-section steel belt for the excavating, supporting and anchoring combined unit, and comprises the following steps:
step one: placing a to-be-paved circulating two-section steel belt 24 on the steel belt material taking bearing table 20 from the rear of the top beam 4 of the excavating and supporting combined unit, wherein the circulating two-section steel belt 24 is of a double-folding structure, the included angle between two support arms of the circulating two-section steel belt 24 is adjustable, and the circulating two-section steel belt 24 is in a fully unfolded state at the moment, namely, the folding angle is equal to 180 degrees;
step two: starting a hydraulic motor 6, driving a chain 9 to rotate through a driving chain wheel 7, and moving a folio steel belt bearing table 10 to the position right below a steel belt material taking bearing table 20 through the chain 9, wherein the folio steel belt bearing table 10 is in a fully unfolded state at the moment, namely when the folding angle is equal to 180 degrees;
step three: controlling the steel belt material taking telescopic frame to retract the piston rod of the hydraulic cylinder 22 so as to shorten the whole steel belt material taking telescopic frame 21 and gradually reduce the height of the steel belt material taking bearing table 20 until the two sections of circulating steel belts 24 on the steel belt material taking bearing table 20 fall on the folding steel belt bearing table 10;
step four: the hydraulic motor 6 is reversely started, the driving chain wheel 7 drives the chain 9 to reversely rotate, the folio steel belt bearing table 10 is moved to the position right above the folio steel belt bearing table folding angle adjusting poking block 11 through the chain 9, then the piston rod of the folio steel belt bearing table folding angle adjusting hydraulic cylinder 12 is controlled to retract, so that the folio steel belt bearing table folding angle adjusting poking block 11 swings, the folio steel belt bearing table 10 in a fully unfolded state is poked to a set folding angle state, and the folio steel belt bearing table 10 and the circulating two sections of steel belts 24 on the folio steel belt bearing table at the moment all present a V-shaped structure; meanwhile, the steel belt material taking telescopic frame is controlled to drive a piston rod of the hydraulic cylinder 22 to extend outwards, so that the steel belt material taking bearing table 20 returns to the initial position;
step five: the hydraulic motor 6 is continuously reversely started until the folio steel belt bearing table 10 is moved to the position right above the steel belt feeding bearing table 14 through the chain 9, and meanwhile, the folio steel belt bearing table 10 is propped against the folio steel belt bearing table corner reset baffle 26 to generate deformation, so that the folio steel belt bearing table 10 and the circulating two-section steel belt 24 on the folio steel belt bearing table are restored to a fully unfolded state from a V-shaped folio state;
step six: controlling the lifting slide block base to drive the piston rod of the hydraulic cylinder 19 to retract so that the lifting slide block base 17 moves upwards along the lifting slide block base guide rail 18 until the steel belt feeding bearing table 14 jacks up the circulating two-section steel belt 24 on the double-folding steel belt bearing table 10;
step seven: the steel belt feeding telescopic frame is controlled to drive a piston rod of the hydraulic cylinder 16 to extend out, so that the steel belt feeding bearing table 14 moves to the front of the front cantilever 25 of the tunneling-supporting-anchoring combined unit;
step eight: firstly, controlling the front cantilever beam 25 of the excavating, supporting and anchoring combined unit to swing downwards, then controlling the steel belt feeding bearing table 14 to retract, enabling the circulating second section steel belt 24 on the steel belt feeding bearing table 14 to be positioned above the front cantilever beam 25 of the excavating, supporting and anchoring combined unit, then controlling the front cantilever beam 25 of the excavating, supporting and anchoring combined unit to swing upwards to be in a horizontal state, and finally enabling the circulating second section steel belt 24 to accurately enter a steel belt clamping groove on the upper surface of the front cantilever beam 25 of the excavating, supporting and anchoring combined unit;
step nine: the steel belt feeding telescopic frame is controlled to drive the piston rod of the hydraulic cylinder 16 to retract, and meanwhile, the lifting slide block base is controlled to drive the piston rod of the hydraulic cylinder 19 to extend outwards, so that the steel belt feeding bearing table 14 returns to the initial position, and the automatic laying of one-cycle two-section steel belt 24 is completed;
step ten: repeating the steps one to nine along with the continuous forward tunneling of the combined tunneling, supporting and anchoring unit, and completing the automatic laying of the second-section steel belt 24 in the subsequent cycle;
step eleven: along with the advancing of the excavating, supporting and anchoring combined unit, when the previously paved circulating two-section steel belt 24 reaches the position right above the steel belt material taking bearing table 20, controlling the steel belt material taking telescopic frame to drive a piston rod of the hydraulic cylinder 22 to extend outwards until the steel belt material taking bearing table 20 is propped against a roadway roof, and enabling the circulating two-section steel belt 24 on the roadway roof to enter the steel belt material taking bearing table 20;
step twelve: when the excavating, supporting and anchoring combined unit moves forwards, the top beam 4 of the excavating, supporting and anchoring combined unit is completely separated from the circulating two-section steel belt 24 propped against the top plate of the roadway by the steel belt material taking bearing table 20, and then the steel belt material taking bearing table 20 is controlled to move downwards, so that the steel belt material taking bearing table 20 carrying the circulating two-section steel belt 24 returns to the initial position;
step thirteen: and repeating the second step to the ninth step to realize the automatic circulating laying of the circulating second-section steel belt 24.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (2)
1. An automatic laying device of two-section steel belt of circulation for dig branch anchor combined unit, its characterized in that: comprises a steel belt transferring mechanism, a steel belt feeding mechanism and a steel belt taking mechanism; the steel belt transfer mechanism is positioned under the top beam of the digging, supporting and anchoring combined unit, the steel belt feeding mechanism is positioned in front of the steel belt transfer mechanism, and the steel belt taking mechanism is positioned behind the steel belt transfer mechanism; the steel belt transfer mechanism comprises a slide rail, a hydraulic motor, a driving sprocket, a driven sprocket, a chain, a slide table plate, a folding steel belt bearing table folding angle adjusting shifting block and a folding steel belt bearing table folding angle adjusting hydraulic cylinder; the sliding rail is fixedly hung under the top beam of the digging, supporting and anchoring combined unit through a hanging bracket, and is parallel to the top beam of the digging, supporting and anchoring combined unit; the hydraulic motor is arranged at one end of the sliding rail, the driving sprocket is fixedly arranged on a power output shaft of the hydraulic motor, the driven sprocket is arranged at the other end of the sliding rail, and the driven sprocket is connected with the driving sprocket through a chain; the sliding table plate is arranged on the sliding rail, the sliding table plate can linearly move along the sliding rail, the lower surface of the sliding table plate is fixedly connected to the chain, the folding steel belt bearing table is arranged on the upper surface of the sliding table plate, and the included angle between two support arms of the folding steel belt bearing table is adjustable; the folding steel belt bearing table folding angle adjusting poking block adopts a U-shaped structure, the folding steel belt bearing table folding angle adjusting poking block is positioned below the sliding rail, the bottom of the folding steel belt bearing table folding angle adjusting poking block is hinged with the lower surface of the sliding rail, and two U-shaped arms of the folding steel belt bearing table folding angle adjusting poking block are matched with two support arms of the folding steel belt bearing table in a poking way; the folding steel belt receiving table folding angle adjusting hydraulic cylinder is positioned below the sliding rail, the cylinder barrel end of the folding steel belt receiving table folding angle adjusting hydraulic cylinder is hinged to the lower surface of the sliding rail, and the piston rod end of the folding steel belt receiving table folding angle adjusting hydraulic cylinder is hinged to the folding steel belt receiving table folding angle adjusting shifting block; a folding angle reset baffle of the folding steel belt bearing table is arranged at the end part of the sliding rail; the steel belt feeding mechanism comprises a steel belt feeding bearing table, a steel belt feeding telescopic frame driving hydraulic cylinder, a lifting slide block base guide rail and a lifting slide block base driving hydraulic cylinder; the steel belt feeding telescopic frame is horizontally arranged, the steel belt feeding bearing table is connected to one end of the steel belt feeding telescopic frame, the lifting slide block base is connected to the other end of the steel belt feeding telescopic frame, and the steel belt feeding telescopic frame driving hydraulic cylinder is connected between the steel belt feeding telescopic frame and the lifting slide block base; the lifting slide block base guide rail is vertically and fixedly arranged on the slide rail, the lifting slide block base guide rail adopts a parallel double-rail structure, the lifting slide block base is arranged on the lifting slide block base guide rail, and the lifting slide block base can linearly move along the lifting slide block base guide rail; the cylinder barrel end of the lifting slide block base driving hydraulic cylinder is hinged to the lower surface of the sliding rail, and the piston rod end of the lifting slide block base driving hydraulic cylinder is hinged to the lifting slide block base; the steel belt material taking mechanism comprises a steel belt material taking bearing table, a steel belt material taking telescopic frame driving hydraulic cylinder and a fixed base; the steel belt material taking telescopic frame is vertically arranged on the fixed base, the fixed base is fixedly connected to the sliding rail, and the steel belt material taking telescopic frame driving hydraulic cylinder is connected between the steel belt material taking telescopic frame and the fixed base; the steel belt material taking bearing table is arranged at the top end of the steel belt material taking telescopic frame.
2. The automatic paving method of the circulating two-section steel belt for the excavating, supporting and anchoring combined unit adopts the automatic paving device of the circulating two-section steel belt for the excavating, supporting and anchoring combined unit, which is characterized by comprising the following steps:
step one: placing a to-be-paved circulating two-section steel belt on a steel belt material taking bearing table from the rear of a top beam of the excavating, supporting and anchoring combined unit, wherein the circulating two-section steel belt is of a foldable structure, an included angle between two support arms of the circulating two-section steel belt is adjustable, and the circulating two-section steel belt is in a fully unfolded state at the moment, namely, the folding angle is equal to 180 degrees;
step two: starting a hydraulic motor, driving a chain to rotate through a driving chain wheel, and moving the folding steel belt carrying table to the position right below the steel belt material taking carrying table through the chain, wherein the folding steel belt carrying table is in a fully unfolded state at the moment, namely, when the folding angle is equal to 180 degrees;
step three: controlling the steel belt material taking telescopic frame to drive a piston rod of the hydraulic cylinder to retract so as to enable the steel belt material taking telescopic frame to be integrally shortened, and enabling the height of the steel belt material taking bearing table to be gradually reduced until two sections of circulating steel belts on the steel belt material taking bearing table fall on the folding steel belt bearing table;
step four: the hydraulic motor is reversely started, the driving chain wheel drives the chain to reversely rotate, the folio steel belt bearing table is moved to the position right above the folio steel belt bearing table folding angle adjusting and poking block through the chain, then the piston rod of the folio steel belt bearing table folding angle adjusting hydraulic cylinder is controlled to retract, so that the folio steel belt bearing table folding angle adjusting and poking block is swung, the folio steel belt bearing table in a fully unfolded state is poked to a set folding angle state, and the folio steel belt bearing table and the circulating two sections of steel belts on the folio steel belt bearing table at the moment all take on a V-shaped structure; meanwhile, the steel belt material taking telescopic frame is controlled to drive a piston rod of the hydraulic cylinder to extend outwards, so that the steel belt material taking bearing table returns to the initial position;
step five: the hydraulic motor is continuously reversely started until the folio steel belt bearing table is moved to the position right above the steel belt feeding bearing table through a chain, and meanwhile, the folio steel belt bearing table is propped against the folio steel belt bearing table folding angle reset baffle to generate deformation, so that the folio steel belt bearing table and the circulating two-section steel belt on the folio steel belt bearing table are restored to a fully unfolded state from a V-shaped folio state;
step six: controlling the lifting slide block base to drive the piston rod of the hydraulic cylinder to retract so that the lifting slide block base moves upwards along the guide rail of the lifting slide block base until the steel belt feeding bearing table jacks up the circulating two-section steel belt on the folding steel belt bearing table;
step seven: controlling the steel belt feeding telescopic frame to drive a piston rod of the hydraulic cylinder to extend out so that the steel belt feeding bearing table moves to the front of the front cantilever of the tunneling-supporting-anchoring combined unit;
step eight: firstly controlling the front cantilever of the tunneling-supporting-anchoring combined unit to swing downwards, then controlling the steel belt feeding bearing table to retract, enabling the circulating second section of steel belts on the steel belt feeding bearing table to be positioned above the front cantilever of the tunneling-supporting-anchoring combined unit, then controlling the front cantilever of the tunneling-supporting-anchoring combined unit to swing upwards to be in a horizontal state, and finally enabling the circulating second section of steel belts to accurately enter the steel belt clamping grooves on the upper surface of the front cantilever of the tunneling-supporting-anchoring combined unit;
step nine: the steel belt feeding telescopic frame is controlled to drive the piston rod of the hydraulic cylinder to retract, and the lifting slide block base is controlled to drive the piston rod of the hydraulic cylinder to extend outwards, so that the steel belt feeding bearing table returns to the initial position, and the automatic laying of one circulating two-section steel belt is completed;
step ten: repeating the first step to the ninth step along with the continuous forward tunneling of the combined tunneling, supporting and anchoring unit, and completing the automatic laying of the second-section steel belt of the subsequent cycle;
step eleven: along with the advance of the excavating, supporting and anchoring combined unit, when a previously paved circulating two-section steel belt reaches the position right above the steel belt material taking bearing table, controlling the steel belt material taking telescopic frame to drive a piston rod of the hydraulic cylinder to extend outwards until the steel belt material taking bearing table is propped against a roadway top plate, so that the circulating two-section steel belt on the roadway top plate enters the steel belt material taking bearing table;
step twelve: when the digging and supporting combined unit moves forwards, the top beam of the digging and supporting combined unit is completely separated from the circulating two-section steel belt which is propped against the roadway top plate by the steel belt material taking bearing table, and then the steel belt material taking bearing table is controlled to move downwards, so that the steel belt material taking bearing table carrying the circulating two-section steel belt returns to the initial position;
step thirteen: and repeating the second step to the ninth step to realize the automatic circulating laying of the two-section circulating steel belt.
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| CN201910675379.9A CN110284911B (en) | 2019-07-25 | 2019-07-25 | Automatic circulating two-section steel belt laying device and method for excavating, supporting and anchoring combined unit |
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| CN110284911B true CN110284911B (en) | 2024-02-13 |
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