CN110778358A - Modularized main roof equipment for rescuing collapsed coal mine roadway and assembling method thereof - Google Patents
Modularized main roof equipment for rescuing collapsed coal mine roadway and assembling method thereof Download PDFInfo
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- 239000010720 hydraulic oil Substances 0.000 description 2
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- 239000002893 slag Substances 0.000 description 2
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- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/126—Loading devices or installations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/006—Equipment transport systems
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Abstract
The invention belongs to the technical field of development machines for coal mines, and relates to a modularized main jacking device for rescuing a coal mine collapse roadway, wherein an integrated hydraulic pump station is connected with an oil cylinder in a main jacking oil cylinder assembly through an oil way, a guide rail module is arranged along the jacking position of the estimated coal mine collapse roadway, a rear support assembly is arranged at the tail section of the guide rail module, the extending end of the oil cylinder of the main jacking oil cylinder assembly is connected with the back surface of a front jacking iron module, the front end of a tool pipe is butted with the tail end of a pipe jacking machine head pipe, and the tool pipe and the pipe jacking machine head pipe are slidably arranged on the guide rail module; the hydraulic balance guider is provided with a plurality of hydraulic balance guiders which are arranged at equal intervals, so that the plurality of hydraulic balance guiders form a straight line extending channel for positioning the jacking direction of the tool pipe and the jacking pipe head pipe, and the equipment solves the problems that the traditional jacking pipe equipment cannot be transported underground due to overlarge size and the construction time of a back wall, a foundation and a front wall needs to be poured is long. The invention also provides an assembling method of the equipment.
Description
Technical Field
The invention belongs to the technical field of development machines for coal mines, in particular to a jacking device of a pipe-jacking development machine for coal mines, and belongs to main jacking equipment aiming at deep well coal mine collapse working conditions.
Background
After a roof collapse accident caused by the change of ground stress under a coal mine, the current commonly used rescue modes mainly comprise: (1) rescue holes are drilled on the ground and are matched with underground dredging lifesaving channels for rescue, but for large buried depth mines, the time and labor for drilling the rescue holes on the ground are wasted, the rescue efficiency is seriously influenced, and few cases of success in the world are provided. (2) The slag is removed to rescue the channel. The underground coal mine is used for dredging the rescue channel aiming at the slag removal of the collapsed roadway, so that the engineering quantity is large, the progress is slow, and secondary damage is easily caused due to the serious risk of secondary collapse. Therefore, the method for digging the rescue channel underground by adopting the pipe jacking mode is provided, not only can the construction amount be greatly reduced, but also the method has self supporting to prevent secondary collapse, and is an ideal method for constructing the rescue channel.
The mine push pipe rescue construction environment has the following problems: (1) in terms of space size: the width of the underground coal mine rescue site is not more than 4 meters generally, the height of the underground coal mine rescue site is not more than 3.5 meters, and the existing equipment cannot meet the size requirement. (2) Rescue equipment aspect: the large-scale equipment can not be transported to a rescue site for matched construction, the equipment is not complete enough, and a plurality of rescue modes are limited. (3) In the explosion-proof aspect: flammable and explosive gases such as gas and the like on the underground collapse site of the coal mine are not clear, so that explosion is easily caused, and secondary accidents are caused. (4) Construction environment aspect: the underground worker construction environment is high temperature and high humidity, and the labor intensity is high and the efficiency is low during rescue. (5) In the aspect of transportation: the transportation of related rescue settings under a coal mine can only use a flat-bed transport vehicle, and the size of transportation parts is greatly limited. Although the current pipe jacking construction technology is mature, due to the problems, the current pipe jacking construction technology cannot be successfully applied to the underground rescue field of collapse environments.
The construction method of the conventional pipe jacking machine main jacking equipment comprises the steps of firstly constructing a reinforced concrete wall integrally cast with a lining wall and used for bearing the counter force of a jack, and in the whole construction process, all pressure generated by pipe jacking is concentrated on a back backrest wall. And secondly, constructing a front wall for guiding the machine head to smoothly enter the hole and sealing a construction object to prevent grouting leakage, wherein the front wall can prevent the machine head from vibrating too much to cause deviation of the jacking direction and has a sealing effect to prevent slurry from flowing out during grouting. The conventional method for manufacturing the front wall is to weld steel plates into a cylindrical shape, and then cast the cylindrical shape on the open pore surface on site to fix the cylindrical shape on the pre-jacking surface. The method has the advantages of large and heavy cylinder, long pouring time and unsuitability for use in the environment of loose bodies in collapsed roadways. And finally, arranging corresponding main jacking equipment such as a main jacking track, a main jacking oil cylinder, a main jacking pump station and a front jacking iron in sequence.
Disclosure of Invention
In order to solve the problems, the modularized main jacking equipment for rescuing the coal mine collapse roadway solves the problems that the traditional pipe jacking equipment cannot be transported underground due to overlarge size and the construction time for pouring a back wall, a foundation and a front wall is long, the on-site pouring time is saved, the direction control during jacking of the pipe jacking is realized, manual operation is reduced, the modularized main jacking equipment can be directly assembled on site for use, and the modularized main jacking equipment meets the requirements of coal mine rescue construction and has the characteristics of rapidness, safety, explosion prevention and the like. In addition, the invention also provides an assembling method of the equipment.
In order to achieve the purpose, the invention adopts the technical scheme that:
in a first technical scheme, the modularized main jacking equipment for rescuing the coal mine collapse roadway comprises an integrated hydraulic pump station, an electric control system, a rear support assembly, a main jacking oil cylinder assembly, a front jacking iron module, a guide rail module, a hydraulic balance guider, a tool pipe and a pipe jacking machine head pipe, wherein the integrated hydraulic pump station is connected with an oil cylinder in the main jacking oil cylinder assembly through an oil way so as to drive the oil cylinder in the main jacking oil cylinder assembly to extend or retract, the guide rail module is arranged along the jacking position of the estimated coal mine collapse roadway, the rear support assembly is arranged at the tail section of the guide rail module, the main jacking oil cylinder assembly is arranged at the front supporting surface of the rear support assembly, the front jacking iron module is arranged on the guide rail module, the extending end of the oil cylinder of the main jacking oil cylinder assembly is connected with the back surface of the front jacking iron module, the whole surface of the front jacking iron module is abutted against the tail end of the tool pipe, and the front end of the pipe jacking machine head pipe is abutted against the, the tool pipe and the push bench head pipe can be slidably arranged on the guide rail module;
the hydraulic balance guider is provided with a plurality of hydraulic balance guiders which are arranged at equal intervals, so that the plurality of hydraulic balance guiders form a linearly extending channel for positioning the jacking direction of the tool pipe and the jacking direction of the head pipe of the pipe jacking machine.
In a first technical scheme, as preferred, back supporting component includes back supporting leg module, connecting bolt subassembly and back module, wherein the vertical setting of back module, and supporting leg module one end is passed through the connecting bolt subassembly and is supported the back at back module, and the supporting leg module other end inserts the underground through built-in stock to play the back supporting role to back module, main top hydro-cylinder subassembly main part butt is in the front of back module.
In the first technical solution, preferably, the main top cylinder assembly includes a plurality of sets of rectangular frame structures and a main top cylinder, in each set of main top cylinder assembly, the main top cylinder is placed in the frame structure, and a plurality of the main top cylinder assemblies can be stacked on each other through the frame structures.
In the first technical solution, preferably, the guide rail module is composed of a plurality of sections of guide rails capable of being fast butted.
In a first technical scheme, as preferred, the hydraulic balance guider comprises two guider supports, an upper support beam, at least two pinch rollers and an elastic resetting device, the two guider supports are symmetrically arranged on two sides of the guide rail module, the main body of the upper support beam is of a U-shaped structure, two free end parts of the upper support beam are respectively and rapidly connected to the top ends of the guider supports through fixing bolt assemblies, and the pinch rollers are mounted on the upper support beam through the elastic resetting device, so that the peripheral surfaces of the pinch rollers can abut against the outer wall of the tool tube or the tube push bench head tube, and the pinch rollers can be pressed and guide the pushing direction of the tool tube or the tube push bench head tube.
In the first technical means, preferably, the flexible direction of the movable portion in the elastic return device passes through the axis of the tool pipe or the pipe pushing jack head pipe.
In a first technical scheme, as preferred, it includes crossbeam and two sloping to go up the supporting beam, two the tip at the crossbeam is connected respectively on the sloping top, and two sloping main parts extend to the oblique below direction of keeping away from the crossbeam for crossbeam and two sloping constitute "Y" type structure, elasticity resetting means installs on the sloping, and the flexible direction perpendicular to sloping's the main part extending direction of activity portion among the elasticity resetting means.
In the first technical scheme, as preferred, the elastic resetting device comprises a leather bag energy accumulator, an oil pipe and a plurality of plunger oil cylinders, the cylinder bodies of the plunger oil cylinders are installed on the upper supporting beam, the pinch rollers are installed at the extending ends of the plunger oil cylinders, and the oil cavities in the cylinder bodies of the plunger oil cylinders are connected with the leather bag energy accumulator through the oil pipe and buffer the stretching impact force of the plunger oil cylinders through the leather bag energy accumulator.
In a first technical scheme, as preferred, preceding top iron module main part includes that U type top iron and two preceding top iron support rollers, the inside cavity opening of U type top iron up, preceding top iron support rollers set up respectively in the both sides of U type top iron bottom, and U type top iron is installed on the guide rail module through preceding top iron support roller slidable, and the end that stretches out of main top oil cylinder subassembly and the tail end of tool tube butt respectively at the both sides terminal surface of U type top iron.
In a second technical solution, an assembling method of a modular main roof apparatus for rescuing a collapsed roadway in a coal mine is used for assembling the modular main roof apparatus for rescuing the collapsed roadway in the coal mine as proposed in the first technical solution, and includes the following steps:
step 1, performing early-stage measurement on the condition of a construction site, and determining the position of a jacking axis;
step 2, after the rear support assembly is hoisted to a proper position, the rear support assembly is anchored on the ground, a guide rail module is arranged at a position close to a rear backrest module, and leveling processing is carried out on the guide rail module, the rear support assembly is connected to the rear section of the guide rail module through a bolt, two main jacking oil cylinder assemblies are respectively arranged on two sides of the rear backrest module, the extending ends of oil cylinders in the main jacking oil cylinder assemblies are quickly connected to the back surface of a front jacking iron module through bolts, and the rear parts of the main jacking oil cylinder assemblies are close to the front surface of the rear backrest module;
The beneficial effects of the invention are as follows:
the modular main roof equipment for rescuing the coal mine collapse tunnel and the installation method have the characteristics of rapidness in installation and convenience in transportation, can ensure that rescue equipment is quickly put into rescue, and completely meet the requirement of urgency of rescue construction of coal mine underground collapse tunnel top pipe. The rear supporting leg module, the sectional type guide rail module, the hydraulic balance guider module and the like are designed to reduce the on-site concrete pouring time and the installation workload, so that the main roof equipment is quickly assembled and quickly put into use, the integral installation time of the main roof equipment is ensured to be within 4 hours, and the device is very suitable for underground collapse roadway rescue application.
Drawings
Fig. 1 is a schematic view of the overall structure of the modular main roof equipment for rescuing in a coal mine collapse roadway.
Fig. 2 is a schematic structural view of a hydraulic balance guider in the modular main roof equipment for rescuing the coal mine collapsed roadway.
FIG. 3 is a schematic diagram of the structure of an integrated hydraulic pump station in the modular main roof equipment for rescuing the coal mine collapsed roadway
Fig. 4 is a schematic structural diagram of a rear support leg module in the modular main roof apparatus for rescuing a collapsed roadway of a coal mine.
Fig. 5 is a schematic diagram of a front top iron assembly module in the modular main top equipment for rescuing the collapsed roadway of the coal mine.
The reference numerals include:
1-integrated hydraulic pump station, 2-electric control system, 3-rear supporting leg module, 4-connecting bolt assembly, 5-rear backrest module, 6-main jacking cylinder bracket, 7-main jacking cylinder, 8-front jacking iron module, 9-slideway, 10-first tool pipe, 11-hydraulic balance guider, 12-second tool pipe, 13-pipe jacking machine head pipe, 14-anchor rod, 15-first guide rail module, 16-second guide rail module, 17-third guide rail module, 18-fourth guide rail module, 19-guider bracket, 20-oblique beam, 21-cross beam, 22-oil way valve block, 23-pressure measuring joint, 24-leather bag energy accumulator, 25-mechanical pressure gauge, 26-oil pipe, 27-plunger cylinder, 27-rear supporting leg module, 9-hydraulic balance guider, 12-second tool pipe, 14-anchor rod, 15-first guide rail module, 16-second guide rail module, 17-third guide rail module, 18-fourth guide, 28-pinch roller, 29-fixed bolt component, 30-motor, 31-load sensitive variable pump, 32-explosion-proof electric control load sensitive control valve, 33-hydraulic pump station oil outlet, 34-hydraulic oil tank, 35-rib plate, 36-U-shaped top iron and 37-front top iron support roller.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.
Example 1
As shown in fig. 1-5, the embodiment provides a modular main jacking device for rescuing a coal mine collapse roadway, which comprises an integrated hydraulic pump station 1, an electrical control system 2, a rear support assembly, a main jacking cylinder 7 assembly, a front jacking iron module 8, a guide rail module, a hydraulic balance guider 11, a tool pipe and a pipe jacking machine head pipe 13, wherein the integrated hydraulic pump station 1 is connected with a cylinder in the main jacking cylinder 7 assembly through an oil way to drive the cylinder in the main jacking cylinder 7 assembly to extend or retract, the guide rail module is arranged along a position where the coal mine collapse roadway is expected to be jacked, the rear support assembly is arranged at the tail section of the guide rail module, the main jacking cylinder 7 assembly is arranged at the front support surface of the rear support assembly, the front jacking iron module 8 is arranged on the guide rail module, the extending end of the cylinder of the main jacking cylinder 7 assembly is connected with the back surface of the front jacking iron module 8, the whole surface of the front jacking iron module 8 is abutted against the, the front end of the tool pipe is butted with the tail end of the pipe pushing machine head pipe 13, and the tool pipe and the pipe pushing machine head pipe 13 are arranged on the guide rail module in a sliding way; the hydraulic balance guider 11 is provided with a plurality of hydraulic balance guider 11 which are arranged at equal intervals, so that the plurality of hydraulic balance guider 11 forms a linearly extending channel for positioning the jacking direction of the tool pipe and the jacking machine head pipe 13.
Concretely, the modularized main roof device for rescuing the coal mine collapse roadway is composed of an integrated hydraulic pump station 1, an electrical control system 2, a rear supporting leg module 3, a connecting bolt assembly 4, a rear backrest module 5, a main roof oil cylinder 7 module, a front roof iron module 8, a slide rail 9, a hydraulic balance guider 11 and an integral guide rail module. Wherein the integral rail module comprises a first rail module 15, a second rail module 16, a third rail module 17 and a fourth rail module 18. The main jacking cylinder 7 module comprises a main jacking cylinder bracket 6 and a main jacking cylinder 7.
The integrated hydraulic pump station adopts an integrated design, and is arranged in the hydraulic oil tank 34 through the motor 30 and the electric control explosion-proof load sensitive variable pump 31, so that the integrity is stronger. The control of the load sensitive variable pump 31 and the explosion-proof electric control load sensitive control valve 32 is applied to ensure that the control precision of the hydraulic action is higher, and the safety guarantee of rescuers is easily realized by remote operation and control.
The back supporting component comprises a back supporting leg module 3, a connecting bolt component 4 and a back backrest module 5, wherein the back backrest module 5 is vertically arranged, one end of the supporting leg module is supported on the back face of the back backrest module 5 through the connecting bolt component 4, the other end of the supporting leg module is inserted into the ground through a built-in anchor rod 14 to play a role in supporting the back face of the back backrest module 5, and a main jacking oil cylinder 7 component main body is abutted to the front face of the back backrest module 5. Back supporting leg module 3 adopts whole box frame structure, and the centre uses gusset 35 to support, and one side and 5 bolted connections of back module use, and the module bottom is anchored with stock 14 with ground, the traditional construction volume of back wall that significantly reduces.
The back module 5 is a cuboid box, and the middle part of the back module is provided with a reinforcing rib to increase the rigidity and reduce the weight of the back module 5.
The main jacking oil cylinder 7 assembly comprises a plurality of groups of rectangular frame structures and main jacking oil cylinders 7, in each group of main jacking oil cylinder 7 assembly, the main jacking oil cylinders 7 are placed in the frame structures, and the main jacking oil cylinders 7 can be stacked mutually through the frame structures. The main jacking oil cylinder bracket 6 is processed by adopting a square frame, the main jacking oil cylinder 7 is fixed in the main jacking oil cylinder bracket 6, and all the main jacking oil cylinder brackets 6 are only required to be stacked together during installation.
The 8 main parts of preceding top iron module include U type top iron 36 and two preceding top iron supporting rollers 37, and the inside cavity opening of U type top iron 36 up, preceding top iron supporting rollers 37 set up respectively in the both sides of U type top iron 36 bottom, and U type top iron 36 is installed on the guide rail module through preceding top iron supporting rollers 37 slidable, and the end that stretches out of main top hydro-cylinder 7 subassembly and the tail end of instrument pipe butt respectively at the both sides terminal surface of U type top iron 36. The front top iron module 8 consists of a U-shaped top iron with an upper opening and a front top iron roller. The U-shaped top iron is convenient for the slag-conveying trolley to be hung outside, and the front top iron idler wheels are convenient for the front top iron module 8 to slide back and forth on the slide 9.
The guide rail module is composed of a plurality of sections of guide rails which can be rapidly butted. The guide rail module comprises a first guide rail module 15, a second guide rail module 16, a third guide rail module 17 and a fourth guide rail module 18, and the guide rail module is used for welding a rail and a sleeper together to form an integral guide rail. The four guide rail modules are assembled after being integrally transported to a working face after being put into a well, and the workload of the site is reduced.
Hydraulic balance guider 11 includes two director supports 19, go up the supporting beam, two at least pinch rollers 28 and elastic resetting device, the setting of two director support 19 symmetries is in the both sides of guide rail module, it is "U" type structure to go up the supporting beam main part, two free ends of going up the supporting beam are respectively through fixed bolt subassembly 29 high-speed joint on the top of director support 19, pinch roller 28 passes through elastic resetting device and installs on last supporting beam, make the outer peripheral face of pinch roller 28 butt at the outer wall of instrument pipe or push bench nose pipe 13, so that pinch roller 28 compresses tightly and leads the ejection direction of instrument pipe or push bench nose pipe 13. The hydraulic balance guider 11 consists of a leather bag energy accumulator 24, a plunger oil cylinder 27, a pressing wheel 28, a guider bracket 19, an oblique beam 20, an oil way valve block 22, a pressure measuring joint 23, a mechanical pressure gauge 25, an oil pipe 26 and a fixed bolt component 29. Wherein, the oil way valve block 22, the pressure measuring joint 23 and the mechanical pressure gauge 25 are all arranged on the oil pipe 26. Only need during the installation hoist and mount the back utilize the bolt subassembly fixed can, simple to operate is convenient. The device solves the problem that the entry of the pipe jacking rescue on the collapse surface is difficult to reach and the vibration is large.
Preferably, the flexible part of the elastic reset device extends through the axis of the tool pipe or the pipe pushing machine head pipe 13.
The upper supporting beam comprises a cross beam 21 and two oblique beams 20, the top ends of the two oblique beams 20 are respectively connected to the end part of the cross beam 21, the main bodies of the two oblique beams 20 extend towards the oblique lower direction far away from the cross beam 21, so that the cross beam 21 and the two oblique beams 20 form a Y-shaped structure, the elastic reset device is installed on the oblique beams 20, and the stretching direction of the movable part in the elastic reset device is perpendicular to the main body extending direction of the oblique beams 20.
The elastic resetting device comprises a leather bag energy accumulator 24, an oil pipe 26 and a plurality of plunger oil cylinders 27, wherein the cylinder bodies of the plunger oil cylinders 27 are arranged on the upper supporting beams, the pinch rollers 28 are arranged at the extending ends of the plunger oil cylinders 27, the oil cavities in the cylinder bodies of the plunger oil cylinders 27 are connected with the leather bag energy accumulator 24 through the oil pipe 26, and the telescopic impact force of the plunger oil cylinders 27 is buffered through the leather bag energy accumulator 24.
The electrical control system 2 adopts an explosion-proof design, adopts an explosion-proof and intrinsic safety type control box and an explosion-proof and intrinsic safety type control operation table to realize remote control of the main jacking device, and is more suitable for the explosion-proof requirement under a coal mine.
The rear supporting leg module 3 is fixed on the ground and provides supporting reaction force of the whole main jacking device; the rear backrest module 5 realizes the uniform distribution of the main top counter force and ensures that the rear supporting leg module 3 is stressed uniformly; the main jacking oil cylinder bracket 6 realizes the quick installation and fixation of the main jacking oil cylinder 7; the main jacking oil cylinder 7 drives the front jacking iron module 8 to move back and forth to realize jacking of each tool pipe and backward movement of the front jacking iron module 8; the front top iron module 8 is shown in fig. 5, and the front top iron support roller 37 rolls back and forth on the guide rail; the first guide rail module 15, the second guide rail module 16, the third guide rail module 17 and the fourth guide rail module 18 realize the support of the whole equipment; the hydraulic balance guide 11 is used for preventing derailment or deviation of the jacking direction of the machine head pipe caused by overlarge vibration in the jacking process.
The integrated hydraulic pump station uses a motor 30 (model: YB3-180L-4) to drive a load sensitive variable pump 31 (model: PV032R1K1TINMT1) to provide an oil source, and is controlled by an electric control explosion-proof load sensitive multi-way valve (model: RT-PSV3S1/275-3) to realize the control of the main jacking oil cylinder 7. The pump station has a compact structure, the working efficiency of a hydraulic system is higher by adopting load sensitive control, and the remote electric control adjustment of the main jacking oil cylinder 7 is realized.
The hydraulic balance guide 11 works as follows: when the machine head generates vibration in the process of entering and jacking the machine head and transmits the vibration to the pressing wheel 28, the pressing wheel 28 pushes the plunger oil cylinder 27 to retract after being pressed, so that the pressure in the leather bag energy accumulator 24 is increased, after the vibration disappears or weakens, the pressure in the leather bag energy accumulator 24 is released again, the plunger oil cylinder 27 is pushed to extend, the pressing wheel 28 is enabled to press the second tool pipe 12 and the pipe head 13 of the pipe jacking machine again, and the whole working process has the effect of automatically adjusting and pressing.
Example 2
The method for assembling the modular main roof equipment for rescuing the collapsed coal mine roadway provided by the embodiment is used for assembling the modular main roof equipment for rescuing the collapsed coal mine roadway provided by the embodiment 1, and comprises the following steps of:
step 1, performing early-stage measurement on the condition of a construction site, and determining the position of a jacking axis;
step 2, after the rear support assembly is hoisted to a proper position, the rear support assembly is anchored on the ground, a guide rail module is arranged at a position close to a rear backrest module 5, and leveling processing is carried out on the guide rail module, the rear support assembly is connected to the rear section of the guide rail module through a bolt, two main jacking oil cylinders 7 are respectively arranged on two sides of the rear backrest module 5, the extending ends of the oil cylinders in the main jacking oil cylinders 7 are quickly connected to the back surface of a front jacking iron module 8 through bolts, and the rear parts of the main jacking oil cylinders 7 are close to the front surface of the rear backrest module 5;
Specifically, how the present invention is assembled quickly is further described below with reference to fig. 1 to 5. The method for assembling the modular main roof equipment for rescuing the collapsed roadway of the coal mine comprises the following implementation steps:
and (4) measuring the condition of the construction site in an early stage, and determining the position of the jacking axis. The rear backrest module 5 is lifted to a proper position, the rear support leg module 3 and the rear backrest module 5 are connected through the connecting bolt assembly 4, and then the rear support leg module 3 is anchored on the ground through the anchor rod 14. A first rail module 15 is disposed in close proximity to the rear back module 5, and the front end of the first rail module 15 is connected to the rear back module 5 with a connecting bolt assembly 4, and the rear end is connected to a second rail module 16. Two main top cylinder brackets 6 are respectively arranged on the first guide rail module 15 close to two sides of the back rest module 5. The front top iron module 8 is connected with the front top iron module by the connecting bolt component 4 in front of the main top oil cylinder bracket 6, and the rear part of the front top iron module abuts against the end surface of the rear backrest module 5. And paving the second guide rail module 16, the third guide rail module 17 and the fourth guide rail module 18 in sequence, and leveling. And lifting the pipe pushing jack head pipe 13 and the second tool pipe 12 to the third guide rail module 17 and the fourth guide rail module 18. The hydraulic balance guide 11 is mounted on the third rail module 17 and the fourth rail module 18. Swing the first tool tube 10 onto the second rail module 16. And an oil outlet 33 of the hydraulic pump station on the integrated hydraulic pump station is connected with an oil port on the main jacking oil cylinder 7. And connecting the power cable at the electric control system 2 to a cutting motor inside the pipe pushing machine head pipe 13. And starting the explosion-proof motor of the integrated hydraulic pump station, sequentially injecting pressure to each leather bag energy accumulator 24 on the hydraulic balance guider 11 by using a long pressure measurement pipeline, and stopping pressurizing when the standby mechanical pressure gauge 25 displays 1Mpa, and removing the pressure measurement pipeline. The explosion-proof electric control load sensitive control valve 32 controls the main jacking oil cylinder 7 to move back and forth to carry out debugging operation. And starting a cutting motor in the machine head pipe 13 of the pipe pushing machine to enable the machine head to run and debug in a no-load mode.
The modular main roof equipment for rescuing the collapsed roadway of the coal mine and the assembling method solve the problems that the traditional pipe jacking equipment cannot be transported under a well due to overlarge size and the construction time is long due to the fact that a back wall, a foundation and a front wall need to be poured through a modular design mode, and guarantee the rapidness, rapidness and effectiveness of rescue construction through the modular assembling method. The rear supporting leg structure with the integrated design is adopted to replace the traditional construction of the rear back wall of the push bench, so that the cast-in-place time is saved. And secondly, an integrated hydraulic automatic balance guider is used, so that the direction control during jacking of the jacking pipe is realized, manual operation is reduced, and the integrated hydraulic automatic balance guider can be used after being directly assembled on site. Finally, the existing pipe jacking equipment is subjected to targeted improvement design by combining the characteristics of coal mine collapse roadway rescue, so that the characteristics of rapidity, safety, explosion prevention and the like of coal mine rescue construction requirements are better met.
The main roof device is simple in construction, low in cost and capable of greatly improving rescue construction speed, and has great popularization due to the fact that the requirement on the professional performance of constructors is reduced by adopting modular rapid assembly.
The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the invention may be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the claims of this patent.
Claims (10)
1. The utility model provides a colliery is collapsed tunnel rescue and is equipped with modularization owner top which characterized in that: comprises an integrated hydraulic pump station, an electric control system, a rear support component, a main jacking oil cylinder component, a front jacking iron module, a guide rail module, a hydraulic balance guider, a tool pipe and a pipe jacking machine head pipe, wherein the integrated hydraulic pump station is connected with the oil cylinder in the main top oil cylinder assembly through an oil way to drive the oil cylinder in the main top oil cylinder assembly to extend or retract, the guide rail module is arranged along the jacking position of the expected coal mine collapse roadway, the rear support assembly is arranged at the tail section of the guide rail module, the main jacking oil cylinder assembly is arranged at the front supporting surface of the rear support assembly, the front jacking iron module is arranged on the guide rail module, the extending end of an oil cylinder of the main jacking oil cylinder assembly is connected with the back surface of the front jacking iron module, the whole surface of the front jacking iron module abuts against the tail end of the tool pipe, the front end of the tool pipe is butted with the tail end of the pipe head of the pipe jacking machine, and the tool pipe and the pipe head of the pipe jacking machine are slidably arranged on the guide rail module;
the hydraulic balance guider is provided with a plurality of hydraulic balance guiders which are arranged at equal intervals, so that the plurality of hydraulic balance guiders form a linearly extending channel for positioning the jacking direction of the tool pipe and the jacking direction of the head pipe of the pipe jacking machine.
2. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 1, wherein: the back supporting assembly comprises a back supporting leg module, a connecting bolt assembly and a back backrest module, wherein the back backrest module is vertically arranged, one end of the supporting leg module is supported on the back face of the back backrest module through the connecting bolt assembly, the other end of the supporting leg module is inserted into the ground through a built-in anchor rod to play a role in supporting the back face of the back backrest module, and the main top oil cylinder assembly main body is abutted to the front face of the back backrest module.
3. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 1, wherein: the main jacking oil cylinder assembly comprises a plurality of groups of rectangular frame structures and main jacking oil cylinders, wherein in each group of main jacking oil cylinder assembly, the main jacking oil cylinders are placed in the frame structures, and the main jacking oil cylinder assemblies can be stacked mutually through the frame structures.
4. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 1, wherein: the guide rail module is composed of a plurality of sections of guide rails capable of being rapidly butted.
5. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 1, wherein: the hydraulic balance guider comprises two guider supports, an upper supporting beam, at least two pressing wheels and an elastic resetting device, wherein the two guider supports are symmetrically arranged on two sides of a guide rail module, the main body of the upper supporting beam is of a U-shaped structure, two free end parts of the upper supporting beam are respectively and quickly connected to the top ends of the guider supports through fixing bolt assemblies, and the pressing wheels are installed on the upper supporting beam through the elastic resetting device, so that the outer peripheral surfaces of the pressing wheels can abut against the outer wall of a tool pipe or a pipe jacking machine head pipe, and the pressing wheels can press and guide the ejection direction of the tool pipe or the pipe jacking machine head pipe.
6. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 5, wherein: the flexible direction of the movable part in the elastic resetting device passes through the axis of the tool pipe or the pipe jacking machine head pipe.
7. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 5, wherein: go up the supporting beam and include crossbeam and two sloping, two the tip at the crossbeam is connected respectively on the sloping top, and two sloping main parts extend to the oblique lower direction of keeping away from the crossbeam for crossbeam and two sloping constitute "Y" type structure, elasticity resetting means installs on the sloping, and the main part extending direction of the flexible direction perpendicular to sloping of movable part among the elasticity resetting means.
8. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 5, wherein: the elastic reset device comprises a leather bag energy accumulator, an oil pipe and a plurality of plunger oil cylinders, the cylinder bodies of the plunger oil cylinders are arranged on the upper supporting beam, the pinch rollers are arranged at the extending ends of the plunger oil cylinders, and the oil cavities in the cylinder bodies of the plunger oil cylinders are connected with the leather bag energy accumulator through the oil pipe and buffer the stretching impact force of the plunger oil cylinders through the leather bag energy accumulator.
9. The modular main roof equipment for rescuing in the coal mine collapsed roadway as claimed in claim 1, wherein: preceding top iron module main part includes U type top iron and two preceding top iron supporting rollers, and the inside cavity opening of U type top iron is up, preceding top iron supporting roller sets up the both sides in U type top iron bottom respectively, and U type top iron is installed on the guide rail module through preceding top iron supporting roller slidable, and the end that stretches out of main top cylinder subassembly and the tail end of tool tube butt respectively at the both sides terminal surface of U type top iron.
10. An assembling method of modular main roof equipment for rescuing in a collapsed coal mine roadway, which is used for assembling the modular main roof equipment for rescuing in the collapsed coal mine roadway as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps:
step 1, performing early-stage measurement on the condition of a construction site, and determining the position of a jacking axis;
step 2, after the rear support assembly is hoisted to a proper position, the rear support assembly is anchored on the ground, a guide rail module is arranged at a position close to a rear backrest module, and leveling processing is carried out on the guide rail module, the rear support assembly is connected to the rear section of the guide rail module through a bolt, two main jacking oil cylinder assemblies are respectively arranged on two sides of the rear backrest module, the extending ends of oil cylinders in the main jacking oil cylinder assemblies are quickly connected to the back surface of a front jacking iron module through bolts, and the rear parts of the main jacking oil cylinder assemblies are close to the front surface of the rear backrest module;
step 3, lifting the pipe jacking machine head pipe and the tool pipe to the guide rail module, and installing hydraulic balance guides outside the pipe jacking machine head pipe and the tool pipe; connecting the integrated hydraulic pump station with the main jacking oil cylinder, connecting a power cable at the electric control system to a cutting motor inside a head pipe of the pipe jacking machine, and completing power butt joint preparation;
step 4, starting an explosion-proof motor of the integrated hydraulic pump station, sequentially injecting pressure to each leather bag energy accumulator on the hydraulic balance guider by using a long pressure measuring pipeline, stopping pressurizing when a mechanical pressure gauge displays a preset pressure, and removing the pressure measuring pipeline;
step 5, controlling the front and back movement of the main jacking oil cylinder to carry out debugging operation through an explosion-proof electric control load sensitive control valve in the integrated hydraulic pump station; and starting a cutting motor in the head pipe of the pipe jacking machine to enable the head to run and debug in a no-load mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028676.0A CN110778358B (en) | 2019-10-28 | Modularized main roof equipment for coal mine collapse roadway rescue and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911028676.0A CN110778358B (en) | 2019-10-28 | Modularized main roof equipment for coal mine collapse roadway rescue and assembly method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN110778358A true CN110778358A (en) | 2020-02-11 |
| CN110778358B CN110778358B (en) | 2024-04-26 |
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