CN105927143A - Coal mine ultra-large diameter hole drilling system - Google Patents
Coal mine ultra-large diameter hole drilling system Download PDFInfo
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- CN105927143A CN105927143A CN201610548041.3A CN201610548041A CN105927143A CN 105927143 A CN105927143 A CN 105927143A CN 201610548041 A CN201610548041 A CN 201610548041A CN 105927143 A CN105927143 A CN 105927143A
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- 238000005553 drilling Methods 0.000 title claims abstract description 296
- 239000003245 coal Substances 0.000 title claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 230000008093 supporting effect Effects 0.000 claims description 44
- 238000005520 cutting process Methods 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
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- 239000003921 oil Substances 0.000 description 20
- 239000007789 gas Substances 0.000 description 19
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- 238000009423 ventilation Methods 0.000 description 8
- 238000005065 mining Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
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- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
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- 239000002817 coal dust Substances 0.000 description 3
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- 239000010878 waste rock Substances 0.000 description 3
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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Abstract
The invention relates to a coal mine ultra-large diameter hole drilling system, which comprises a drilling machine body, a hydraulic driving walking mechanism, a hydraulic power mechanism, a hole drilling operation pushing mechanism, a drilling machine support mechanism, a drill hole positioning and angle regulating mechanism, a rotating mechanism and a hole drilling power mechanism, wherein the drilling machine body is arranged on a drilling machine main beam; the hydraulic driving walking mechanism consists of a walking driving wheel and a walking motor; the hydraulic power mechanism consists of a hydraulic station device and a reversing valve; the hole drilling operation pushing mechanism consists of a rail arranged on the machine body, a sleeve pushing device arranged on the rail and a hole drilling pushing device; the drilling machine support mechanism consists of a drilling machine supporter arranged on the machine body, a support device and a height regulating device arranged on the rail; the drill hole positioning and angle regulating mechanism consists of an angle regulating device arranged on the rail and the machine body and a rail supporter. The system has the advantages that the coal wall minimum resistance line of the gas bag physical explosion can be effectively prolonged; the problem of hole drilling difficulty is solved; meanwhile, the operation outburst prevention is really realized; the occurrence of coal and gas outburst accidents is thoroughly avoided; the life safety of operators is ensured.
Description
Technical Field
The invention relates to a coal seam drilling system, in particular to a drilling system for drilling holes with ultra-large diameters in a coal mine.
Background
In the complex coal seam mining process of an underground mine, especially in the gas drainage drilling process of a outburst coal seam, the problems of drill sticking, top drilling, holding drilling, hole collapse, hole spraying and the like often occur; during the preparation period of the mining face, the life safety of operators is threatened at the time of dangers such as excessive gas concentration, roof accidents and working face oxygen deficiency because the one-head tunneling cannot form the tunnel ventilation in time; especially once the roof accident and the accident such as permeating water cause personnel to be in the inside of tunnel, at present there is not a rig and drilling technique at home and abroad, can solve the scheme of above-mentioned drilling problem simultaneously.
Disclosure of Invention
Aiming at the problems that drilling and pore forming of a complex coal seam are difficult, and especially the problem that an ultra-large diameter pore forming technology and equipment are lacked in the prior art, the invention provides a brand new coal mine ultra-large diameter drilling system, and the actual difficulties of coal mine drilling operation, ventilation, emergency rescue and the like can be solved by using the system for operation.
The technical scheme is as follows:
a coal mine ultra-large diameter drilling system, comprising: the drilling machine comprises a drilling machine body, a drilling machine walking mechanism, a hydraulic power mechanism, a propelling mechanism, a drilling hole positioning mechanism, an angle adjusting mechanism, a drilling machine supporting mechanism, a slewing mechanism and a drilling power mechanism, wherein the drilling machine body is arranged on a drilling machine main beam to form a framework platform for installing other related devices;
a. the drill traveling mechanism mainly comprises a traveling driving wheel and a traveling motor, is arranged on a drill main beam, and drives the traveling driving wheel to operate through the traveling motor so as to provide forward and backward driving force for the drill;
b. the hydraulic power mechanism mainly comprises a hydraulic station arranged on the body of the drilling machine, a jack and a reversing valve arranged on the body, and forms a hydraulic power system for drilling operation;
c. the propelling mechanism mainly comprises a track arranged on a drilling machine body, and a sleeve propelling device, a drilling propelling device and a guiding device which are arranged on the track, and is used for guiding drilling, pushing pipes and propelling drilling;
d. the drilling positioning and angle adjusting mechanism mainly comprises an adjusting device and a rail support, wherein the adjusting device is arranged between the rail and the machine body frame to form a drilling positioning mechanism of the drilling machine, and the adjusting device and the rail support form a drilling angle adjusting system;
e. the drilling machine supporting mechanism comprises a chassis support, a drilling machine support, a supporting device and a track support, is respectively arranged on the drilling machine body and the track and is a supporting and stabilizing system during the operation of the drilling machine, and is respectively connected with a corresponding jack; the jack is connected with the hydraulic station; wherein the track is supported and installed on the machine body through the track;
f. a slewing device of the slewing mechanism is arranged on the plane of the main beam of the drilling machine and matched with the machine body to form the slewing mechanism;
g. the drilling power mechanism comprises a drilling power device, a drilling propelling device, a sleeve propelling device, a drill rod, a combined drill bit and a tubular cutting body, the drilling power device is installed on the sleeve propelling device through a bottom plate, the drilling power device is connected with a hydraulic station and the drilling propelling device, and forward pushing or backward pulling of drilling operation on the drill rod is realized under the control of the drilling propelling device.
Preferably, the guide device is of a sliding rod structure and is movably arranged in an H-shaped groove of the track.
Preferably, the guide means is connected to the guide jack by a shaft pin.
Preferably, the adjusting device consists of a height adjusting device and an angle adjusting device, and the drilling height and the drilling angle are completed by the adjusting device.
Preferably, the reversing valve is a hydraulic reversing valve, is connected with the hydraulic station and is arranged on the body of the drilling machine.
Preferably, the drill rod is mounted on a drill rod joint on the power head; the casing device is arranged on the casing propelling device, and the composite drill bit is arranged at the top end of the drill rod and the top end of the casing device.
By adopting the technical scheme, compared with the prior art, the invention has the remarkable effects that: the hydraulic station device provides hydraulic power, and the hydraulic power is driven by a hydraulic driving system to realize the walking function of the drilling machine device by 4 multiplied by 4 through a walking motor device and a walking wheel device: forward, reverse, or turn. When the drilling machine device arrives at a preset operation place, the hydraulic station device 7 provides hydraulic power, and each pushing jack is pushed by the hydraulic power to meet the requirement of supporting force in all directions, so that a good foundation is laid for drilling and jacking operation. When the drill top angle is positioned, the requirement of top hole drilling operation is met with the supporting force in all directions, and the integral stability of the drilling machine device meets the requirement of safe operation specification, the ultra-large diameter top hole drilling operation can be carried out.
The drill rod device is arranged on the drilling power device, the sleeve is arranged on the sleeve propelling device, the composite drill bit device is assembled, and the drilling and jacking hole forming operation is carried out on the premise that the guiding device provides positioning guarantee. The problem that the drilling of the conventional complex outburst coal seam is difficult is fundamentally solved; the problem of the large-diameter vent hole of the advanced air drill of the single-head roadway tunneling combined roadway; the personnel are trapped in the catastrophe period of accidents such as underground roof plate or permeable water, fire and the like, and the problems of large-diameter drilling and pore forming of a life channel are not established.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The reference numerals are explained below: the drilling machine comprises a guide device 1, a casing propelling device 2, a height adjusting device 3, a chassis support 4, a traveling driving wheel 5, a traveling motor 6, a hydraulic station device 7, a reversing valve 8, an angle adjusting device 9, a drilling propelling device 10, a machine body frame 11, a drilling machine support 12, a support device 13, a drilling power device 14, a track support 15, a drilling machine main beam 16, a track 17, a slewing device 18, a drill rod 19, a composite drill bit 20, a guide device jack 21, a casing propelling jack 22, an adjusting device jack 23, a support device jack 24, an adjusting device supporting leg 25, a tubular cutting body 26 and a casing device 27.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a block diagram embodiment of a coal mine ultra large diameter drilling rig system provided by the present invention. The invention provides a coal mine ultra-large diameter drilling machine system, which comprises: the drilling machine comprises a drilling machine body and a drilling machine walking mechanism which is arranged on a drilling machine main beam 16 and is driven by 4 multiplied by 4 hydraulic pressure and composed of a walking driving wheel 5 and a walking motor 6; a hydraulic power mechanism of the drilling machine is formed by a hydraulic station device 7 and a reversing valve 8 which are arranged on a machine body; a track 17 and a related propelling device which are arranged on the machine body through a supporting device form a propelling mechanism for drilling guide, pipe jacking and drilling; the drilling machine supporting mechanism is composed of a supporting device arranged on the machine body; the height adjusting device and the angle adjusting device form a drilling positioning mechanism, an angle adjusting mechanism, a slewing mechanism and a drilling power mechanism of the drilling machine.
Drilling machine body
The drilling machine body consists of a drilling machine main beam 16, a machine body frame 11 arranged on the drilling machine main beam 16 and a track 17, wherein the drilling machine main beam 16 is a steel structure beam and forms a framework platform for installing other related devices together with the steel structure machine body frame 11.
The machine body frame 11 is arranged on a main beam 16 of the drilling machine in a movable fit mode through a rotating device 18 with a rotating function, angle adjustment and stable support are provided for drilling operation, inclined support for roadway sides and vertical support for roadway tops are provided during drilling operation, so that the drilling machine and a roadway of an operation environment form an integral relation, and stability of the drilling machine during drilling operation is effectively guaranteed. The machine body frame 11 can do any 360-degree rotation movement by taking the rotating device 18 as a center so as to meet the requirements of various environments of a coal mine working face.
The drill main beam 16 is a main part of the drill, is a combined platform provided for the walking driving wheel 5 and the slewing device 18, and is also a platform providing a supporting and slewing function for the machine body frame 11.
Drilling machine walking mechanism
Referring to fig. 1, a reversing valve 8, a hydraulic station device 7, a traveling driving wheel 5, a traveling motor 6 and a main beam 16 of the drilling machine form a traveling mechanism of the drilling machine of the ultra-large diameter drilling machine device, the traveling mechanism of the drilling machine is a self-traveling system, the traveling driving wheel 5 is movably mounted on a single-side support body in a bearing mode respectively, the single-side support body is mounted on the main beam of the drilling machine in a bolt mode and is positioned by a related structure, and 4 traveling driving wheels form a 4 × 4 driving mode.
The walking driving wheel 5 is connected with the walking motor 6 and is arranged on the drill main beam 16, and the walking motor 6 and the walking driving wheel 5 are connected into a moving body mechanism through a flat key or a spline. The walking motors 6 provide driving torque for the walking driving wheels 5 through hydraulic power, the four walking motors 6 arranged on two sides of the walking driving wheels 5 supply oil at the same time, and the drilling machine moves forwards or backwards; if only one side of the two traveling motors 6 is supplied with oil, the drilling machine turns left or right to perform steering movement so as to reach the drilling operation site.
Hydraulic power mechanism
The hydraulic power mechanism consists of a hydraulic station device 7, a jack device and a reversing valve 8 which are positioned on the body of the drilling machine, the hydraulic station device 7 consists of two sets of (double) hydraulic stations, the reversing valve 8 is a multi-way reversing valve, and the two sets of (double) hydraulic stations and the reversing valve 8 form a hydraulic power system for drilling operation. Two sets of hydraulic stations and reversing valves 8 are respectively arranged on the machine body frame 11. A set of hydraulic stations provides hydraulic power for the drilling motor and the walking motor; the other set of hydraulic station provides propelling hydraulic power for all the jacks for supporting and propelling. The hydraulic station is connected with the corresponding motor and the jack through a multi-way reversing valve 8 and a hydraulic oil pipe. The reversing valve 8 is arranged on the machine body 11 and forms a hydraulic power supply system with the hydraulic stations, and the two sets of hydraulic stations supply hydraulic power to each hydraulic component of the system after being electrified.
The hydraulic station has the functions of：The point energy is converted into hydraulic energy so as to provide oil pressure energy for each actuating mechanism of the drilling machine, and all requirements on the oil pressure energy during the drilling operation are met. The hydraulic cylinder is connected with the motor through the crank link mechanism to supply power for the motor, the motor drives the hydraulic pump to rotate through the coupler, and when the hydraulic pump rotates, hydraulic oil is sucked into the oil pump from the hydraulic oil tank and is extruded to the hydraulic reversing valve so as to be convenient forThe reversing valve 8 provides hydraulic power for the corresponding hydraulic actuating element according to the operation requirement, so that the energy conversion process is realized.
Function of the diverter valve 8: oil pressure power from the hydraulic station arrangement 7 is supplied to the respective actuators for normal operation of the drilling machine.
The reversing valve 8 is a hydraulic reversing valve and is provided with hydraulic passages in different directions, so that different requirements of actuating elements such as jacks, motors and the like on pressure, flow and direction can be met by switching different position valves of a valve box, and different requirements of walking, supporting and drilling operation of the drilling machine on oil pressure energy can be met. The forward and backward movement and the steering of the drilling machine are realized through the reversing valve 8.
Propelling mechanism
The propelling mechanism consists of a track 17 arranged on a drilling machine body, a sleeve propelling device 2, a drilling propelling device 10, a guiding device 1 and the like which are arranged on the track 17, and is used for guiding drilling, pushing pipe and drilling.
Referring to fig. 1, the rail 17 is pivotally mounted to a door post of the body frame 11 by a rail support 15. The track 17 is a sliding track of the casing advancing device 2, the casing advancing device 2 can advance and retract on the track, the drilling advancing device 10 is installed on the track 17, the drilling advancing device 10 slides on the casing advancing device 2, and the track 17 is one of important parts of the operation of drilling and jacking holes.
The guide device 1, the sleeve propelling device 2, the adjusting device 3, the supporting device 13, the drilling power device 14 and the like are arranged on the track device 17 to form a power transmission, propelling and positioning system for drilling and jacking hole forming operation. Wherein,
guide device 1
The guiding device 1 is a sliding rod device composed of section steel, and the upper side of the sliding rod device is provided with a pin seat and a pin hole for installing a pin shaft for a lug ring of a pushing jack (oil cylinder); and a connecting plate and a screw hole for installing a replaceable sleeve supporting sleeve are arranged and movably arranged in an H-shaped groove of the track 17 in a sliding mode, and the guide device 1 can reciprocate under the pushing and pulling of the jack along the H-shaped groove so as to provide a positioning and guiding function for the sleeve during the drilling operation. So as to perform a pushing and pulling movement of the guide means 1 under the hydraulic power provided by the hydraulic station means 7.
The earrings at the two ends of the guide jack 21 are arranged between the track 17 and the earring seat of the guide device 1, and the two sliding rods of the guide device 1 are movably arranged at the H-shaped opening of the track 17 and pass through the earring seat and the earring seatGuide deviceThe jack 21 and the ear ring seat of the track 17 form a propulsion system, and the guide jack 21 can propel forwards or pull back the guide device 1 under the power of oil pressure so as to meet the requirement of guiding the sleeve device 27 or supporting the coal wall. The guide jack 21 has two functions, namely, positioning the sleeve 27 during the operation of drilling and jacking holes; secondly, the supporting function of the coal wall in front of the drilling position can be achieved.
The guide device 1 is provided with a reversing valve 8Guide deviceThe jack 21 provides hydraulic power, realizes the positioning of sleeve propelling and drilling and the support of the coal wall, and ensures that coal and gas outburst accidents are completely eradicated during operation. The hydraulic power is provided for the jack of the guiding device 1, so that the guiding device is pushed forwards to support the coal body or pulled backwards to release the support of the coal wall; because the guiding device 1 has a supporting and positioning effect on the jacking of the sleeve and a supporting effect on the coal wall during the drilling operation, the minimum resistance line of the coal wall of the gas bag in physical explosion can be effectively prolonged, the problem of difficult drilling is solved, the operation outburst prevention is really realized, the coal and gas outburst accidents are thoroughly avoided, and the life safety of operators is ensured.
Casing propulsion device 2
The function of the casing advancing device 2 is to give the function of advancing or retracting the respective casing in the roof drilling operation.
The casing propelling device 2 is connected with the casing device 27 and the reversing valve 8, and the reversing valve 8 provides hydraulic power for the casing propelling jack 22 to realize forward pushing and backward pulling of the combined drill bit 20 and the associated casing.
The casing propelling device 2 is movably arranged on the H plane of the track 17 in a sliding pressure plate mode and is used as a track support, on the premise that the hydraulic station device 7 provides oil pressure power for the casing propelling jack 22, the casing propelling jack 22 can propel and pull back the casing propelling device to complete the operation of drilling a top hole, and when the drilling is completed, the casing is pulled back. The sleeve propelling jack 22 is pivotally mounted to the track 17 and the collar seat on the sleeve propelling device 2 via a collar. The function of the casing advancing jack 22 is to utilize the oil pressure energy of the hydraulic system, to continuously advance along with the hole depth during the drilling and jacking hole-forming operation, to give forward thrust to the casing device 27, and to pull back in the process of adding and connecting the casing device 27, so as to add a new casing device into the drilling operation, and to provide and require the reciprocating power for extracting the casing in the hole when the top hole drilling operation is finished.
Height adjusting device 3
The height adjusting device 3 is composed of an adjusting jack 23 and an adjusting device supporting leg 25 and is used for adjusting the height of the position of the top drilling hole of the main track 17. One end of the height adjusting device 3 is hinged on a pin seat of the main track 17 by a pin shaft, and the adjusting jack 23 is used for assisting the height adjusting device 3 to adjust the vertical angle of the track 17 so as to meet the design requirement of drilling. The adjusting jack 23 is mounted on a shaft pin seat on the rail 17 and a shaft pin seat on the adjusting device supporting leg 25 through a pin shaft to form an adjusting mechanism, the adjusting jack 23 pushes the adjusting device supporting leg 25 forward under the power of the hydraulic system oil pressure, the front end of the rail 17 moves downward to reduce the drilling height, and if the adjusting jack 23 pulls the adjusting device supporting leg 25 backward and the adjusting device supporting leg 25 mechanically goes up the rail 17 through the pin shaft, the front end of the rail 17 is lifted upward, so that the drilling height is lifted. The purpose of adjusting the height of the drill hole is achieved.
The purpose of the legs 25 of the adjusting device is to give the rail 17 the stable support required for height positioning during the drilling operation, ensuring smooth operation of the top drilling operation.
The adjusting jack 23 can push the adjusting device leg 25 forwards and pull the adjusting device leg backwards under the action of oil pressure, so that the main track can rotate around the track supporting device 15, and the height adjusting function of the main track is realized.
Drilling positioning and angle adjusting mechanism
The drilling positioning and angle adjusting mechanism consists of an angle adjusting device 9 and a track support 15, wherein the angle adjusting device 9 is arranged between a track 17 and a machine body frame 11 and forms a drilling angle adjusting system with the track support 15.
The angle adjusting device 9 is matched with the height adjusting device 3, and simultaneously, the drilling height of the track 17 is adjusted to meet the requirement of the drilling operation on the height. Earrings at two ends of the adjusting device jack 23 are mounted on earring pin seats on the track 17 and the machine body frame 11 through shaft pins, the track 17 is pushed down or pulled up according to the requirement of the actual drilling position, the track device is adjusted and positioned by matching with the height adjusting device 3, a drilling positioning and angle adjusting mechanism is formed, and the accuracy of the drilling position is ensured.
Drilling machine supporting mechanism
The drill supporting mechanism is arranged on the machine body and the track and is a supporting and stabilizing system during operation of the drill.
The drilling machine supporting mechanism consists of a chassis support 4, a drilling machine support 12 arranged on the machine body 11, a supporting device 13 arranged on a track 17 and a track support 15, wherein the chassis support 4, the drilling machine support 12, the supporting device 13, the track support 15 and an adjusting device 3 arranged on the track device 17 form an all-directional supporting system of the drilling machine; the chassis support 4 adopts a plurality of support upright posts, and the chassis support 4 is respectively arranged below the machine body in a shaft pin mode to form a chassis support system of the drilling machine device; when the drilling device reaches the operation site and the relative position of the machine body is adjusted, the reversing valve 8 is used for supporting the chassis support 4Jacks 24 provide hydraulic power from the hydraulic station arrangement 7 for the purpose of balancing and stabilizing the rig. The supporting jacks 24 being chassis supports 4A part of whichThe hydraulic support system has the advantages that the roadway top is supported in a prestressed mode through the oil pressure power of the hydraulic system, and the requirements for balance and stability during operation of a drilling machine are guaranteed. The drilling machine support 12 is hinged with the machine body frame 11 through a pin shaft, the drilling machine support 12 is installed on the machine body frame 11, hydraulic power from the hydraulic station 7 is provided for the drilling machine support 12 through the reversing valve 8, and the requirement of the drilling machine on vertical stability or oblique supporting force is met. The rail support 15 is located below the rail 17 by using support rollers, and the support device 13 is composed of a plurality of support jacks 24, is installed on the rail 17, and stabilizes the rail 17 when drilling height adjustment works. The chassis support 4, the drilling machine support 12, the support device 13 and the track support 15 are respectively connected with a hydraulic station, and hydraulic power is provided for a support jack 24 of the drilling machine support mechanism through the hydraulic station, so that the drilling machine support mechanism extends out and retracts.
The function and the structural principle of each supporting device are as follows:
the drill support 12 plays a role in obliquely supporting and vertically supporting the drill during drilling operation. The drill support 12 is composed of an outer sliding sleeve, an inner sliding pipe, a jack and the like, and is hinged on an earring seat on the body device 11 in a shaft pin mode, when the drill is required to be stably drilled, the jack 24 pushes the inner sliding pipe to move outwards by utilizing oil pressure power, so that the prestressed support for the roadway roof or the roadway side coal wall can be realized, and the stable state of the drill during operation is ensured.
Support device 13Is/are as followsAnd the adjusting device 3 is matched to ensure the stability of the track device 17 during drilling operation and improve the manufacturability of top hole drilling. The basic performance and course of action is the same as for the support means 12.
The rail support 15 uses a pin structure to install the rail device 17 on the upright post of the machine body device 11 and form a whole body of drilling operation.
Chassis support 4Is/are as followsThe function is to balance the whole drilling machineAnd the stabilizing function of the support. The chassis support 4 uses the oil pressure power provided by the hydraulic station, and the support jack 24 withdraws and pulls back the sliding pipe on the device, so that the support device can be adjusted to the optimal support position according to the drilling operation site environment, and the stable and reliable safety guarantee is provided for the drilling operation.
Rotary mechanism
The slewing device 18 of the slewing mechanism is mounted on the plane of the drill main beam 16 in a shaft sleeve mode, the center of the upper plane of the drill main beam 16 is provided with a shaft sleeve, the center of the lower plane of the machine body frame 11 is also provided with a shaft sleeve, the inner diameters of holes of the two shaft sleeves are equal, and a shaft pin penetrates through the two shaft sleeves to be hinged. And the locking device is used for positioning the shaft pin to prevent the shaft pin from falling off, so that a complete mechanism capable of rotating 360 degrees forms a rotating mechanism matched with a drilling machine body. The drilling machine body realizes the arbitrary adjustment of the drilling direction through the slewing device 18. The rotary type coal mine underground working machine is simple in structure, convenient to rotate and free of extra power, so that the rotary type coal mine underground working machine meets the requirements of the current situation of a coal mine and the underground working environment.
The rotating device 18 is used for providing a rotating function for adjusting the angle during drilling for the machine body frame 11.
Drilling power mechanism
The drilling power mechanism comprises a drilling power device 14, a drilling propulsion device 10, a casing propulsion device 2, a drill rod 19, a composite drill bit 20 and a tubular cutting body 26.
The drilling power device 14 is arranged on the casing propelling device 2 through a bottom plate, the drilling power device 14 is connected with the hydraulic station and the drilling propelling device 10, and forward pushing or backward pulling of the drilling rod 19 by drilling operation is realized under the control of the drilling propelling device 10. A drill rod 19 is mounted on the power head at a drill rod joint; the casing arrangement 27 is mounted on the casing advancing device 2 and the composite drill bit 20 is mounted on the drill rod top end and on the top end of the casing arrangement 27. The hydraulic power provided to the drilling power plant 14 is converted into a rotation of the drill rod 19 and a cutting force on the coal (gangue). When hydraulic power is provided for the casing propelling device, the jack can complete the forward propelling and the backward pulling of the casing propelling device. Wherein;
drilling power device
Drilling power device 14Is/are as followsThe hydraulic power is converted into mechanical power of a drill rod and a drill bit through a hydraulic motor, a speed reducer and a power head device, so that the aim of drilling is fulfilled. The drilling power unit 14 is simply referred to as a unit of a hydraulic motor, a reducer, a power head, a coupling, and the like. The principle is that the hydraulic motor converts the oil pressure power from the hydraulic oil pump of the hydraulic station device 7 into the mechanical energy of the drill rod and the drill bit, namely the hydraulic station converts the electric energy into the hydraulic energy, the drilling power device 14 converts the hydraulic energy into the mechanical energy through the hydraulic motor, and the drill bit cuts and forms holes on coal (waste rock) to realize the conversion process of energy, thereby achieving the purpose of drilling the top hole.
Drilling propulsion device
Drilling propulsion device 10Is/are as followsThe drill rod pulling device has the functions of providing a mounting platform for the drilling power device, and enabling the drill rod to be pushed in and pulled out so as to achieve the purpose of drilling operation.
The drilling propulsion device 10 is arranged on the upper side of the casing propulsion device 2 in the form of a steel pipe through a pressing plate, the drilling power device assembly is arranged on a sliding plate, a jack on the upper side of the drilling propulsion device 10 is arranged on an ear ring seat on the sliding plate and the casing propulsion device 2, and the drilling power device 14 is pushed or pulled back by utilizing the hydraulic power of an oil pressure system.
Drill rod
Drill rod 19Is/are as followsThe function is to transmit the mechanical energy converted by the drilling power device 14 to the alloy composite sheet of the drill bit and apply proper thrust to the alloy composite sheet so that the alloy sheet of the drill bit can forcibly cut the coal (gangue) to realize the drilling operation in the coal (gangue).
Composite drill bit
Composite drill bit 20Is/are as followsThe function is to forcibly cut the coal (gangue) body by utilizing the mechanical energy given by the drill rod and drive the tubular cutting body device at the end part of the sleeve to rotate together, thereby realizing the purpose of drilling and jacking together.
The working principle is that the drill rod device 19 is driven by the drilling power device 14 to rotate, the tubular cutting device 26 is driven by the spline device and the tubular cutting device 26 to rotate together, the composite drill bit 20 is pushed by the drilling propulsion device 10 while the tubular cutting body device 26 is pushed by the casing propulsion device 2, so that the composite drill bit device 20 and the tubular cutting device 26 forcibly cut the coal (gangue) body while obtaining the rotating torque and the propelling force, drill cuttings of the cut coal (gangue) are automatically discharged out of a drill hole through the material returning function of the spiral drill rod rotary vane, the operation process can be carried out in a relay type replacement and continuous drilling top according to the process length of a running section or the drill rod and the casing, and finally the designed hole depth is achieved so as to complete the drilling top integrated hole forming operation task. And the following aims can be achieved:
1. if the abnormal condition that gas jet hole phenomenon appears in the drill hole or equivalent footage appears and coal dust and drill cuttings are obviously increased during the top drilling operation, the top drilling operation is stopped immediately, the gas shunt device is used for carrying out hole pressure relief drilling and discharging on excessive coal dust or drill cuttings and gushed gas, and the drilling operation is carried out forwards again until the jet hole phenomenon disappears and the coal dust discharge capacity is normal
2. If all is smooth, the top hole of the drill reaches the size of the designed depth, and the spline structure is arranged between the combined type drill bit device 20 and the tubular cutting body device 26, so that the combined type drill bit device can be smoothly pulled out together with the drill rod 19, after the drill rod and the drill bit are pulled out, the gas drainage hole protection sieve tube with the corresponding size can be placed in the sleeve and placed at the bottom of the hole, and then the whole sleeve is pulled out through the sleeve propelling device 2 to place the hole protection tube and the drainage pressure of the drill is completed.
3. Because the coal (gangue) body of the drilling and jacking integrated pore-forming process is separated from the drill hole by a sleeve, and the spline type drill bit can be found out smoothly after pore-forming, and the pore-forming process can realize the drilling and jacking integration with super large diameter, if a pipe fitting with the diameter of about 0.5m is placed in the sleeve to form the vent hole, the problem of advanced ventilation of the existing one-head tunneling combined roadway can be solved, the ventilation environment of a working face is effectively improved, the problems of no wind, circulating wind and high gas concentration of the working face are thoroughly twisted, and a good working environment is created for operators.
4. The invention provides an ultra-large diameter hole forming process and technical equipment. Once personnel such as roof accidents, water making, fire disasters and the like are trapped underground, collapse and roadway cutting positions are urgently needed, and a rescue life channel needs to be opened quickly, the drilling and jacking integrated multifunctional drilling machine such as an underground air table can quickly achieve the purpose, and the rescue life channel with the ejection diameter not less than 800mm can be drilled and jacked quickly, so that the multifunctional special effect of one machine for multiple purposes of the technology is achieved.
Tubular cutting body
The tubular cutting body 26 is mounted on the casing device 27, and is combined to rotate, under the drive of the spline structure, mechanical energy transmitted from a drill rod is converted into forced cutting action of an alloy sheet on coal (waste rock) so as to meet the requirements of a drill top integrated comprehensive hole forming process, the tubular cutting body 26 has the functions of centering and guiding a drill bit and expanding a drilled hole, the resistance of a subsequent casing in the follow-up jacking process is reduced due to the arrangement of the tubular cutting body 26, and the coal (waste rock) body is forcibly cut together by matching with the drill bit so as to achieve the purpose of drilling top integrated hole forming. The multifunctional performance of the drilling and jacking composite hole forming process is fully exerted, so that the drilling difficulty of a gas outburst complex coal seam is realized, the drilling is blocked, the drilling is embraced, the spray hole is out of control, the hole drilling cannot be carried out, and the current situation that a gas shaft-release screen pipe is put in place when the hole is collapsed is realized, and the requirements of roadway-connecting large-diameter hole forming advanced ventilation and rapid construction of a large-diameter life channel in an emergency rescue period are met.
Sleeve device
The sleeve device 27 is sleeved outside the composite drill bit 20, and has the following functions:
1. the current situation that the drilling and the screen pipe is difficult to be placed on the lower shaft is changed, a foundation is laid for the screen with the enlarged diameter of the lower gas shaft, the gas shaft placing (mining) rate is provided, the gas shaft placing (mining) period is shortened, and the coal mining continuation rate is improved.
2. During drilling top and forming holes, pressure relief drilling and discharging are carried out on the coal seam gas potential energy body, and threats and injuries brought to miners by coal and gas outburst accidents are thoroughly eliminated.
3. By utilizing the isolation property of the sleeve device 27 and the coal seam, the large-diameter ventilation pipe is arranged in the sleeve device 27 after the hole is formed, so that the coal roadway tunneled at one end is communicated in advance, the aim of advanced ventilation is realized, and the situation of difficulty in tunneling and ventilation of the existing coal roadway at one end is thoroughly changed.
4. After the large-diameter hole is formed, a channel with the diameter not smaller than 800mm is reserved in the casing device 27 after the drill rod and the drill bit are pulled out, the requirement for quickly constructing a large-diameter life channel is provided for emergency rescue, and scientific guarantee of technology, equipment and process is provided for people in danger to succeed in life.
Working process of the invention
The hydraulic station device provides hydraulic power for the whole system, and under the drive of the hydraulic drive system, the hydraulic station device provides hydraulic power for the walking motor through the reversing valve, so that the walking motor has the walking and moving functions. The 4 x4 walking function of the drilling machine, namely advancing, retreating or steering, is realized.
When the drill top angle is positioned, the requirement of top hole drilling operation is met with the supporting force in all directions, and the integral stability of the drilling machine meets the requirement of safe operation specification, the ultra-large diameter top hole drilling operation can be carried out.
Firstly, a drill rod is arranged on a drilling power device, a sleeve is arranged on a sleeve propelling device, and a combined type drill bit is assembled, so that the drilling and jacking hole forming operation can be carried out on the premise that a guide device provides positioning guarantee.
When the drilling machine arrives at the preset operation place, the hydraulic station device provides hydraulic power, and each pushing jack is pushed by the hydraulic power to meet the requirement of supporting force in all directions, so that a good foundation is laid for drilling and jacking operation. When the drilling machine moves to a top hole drilling position designed on a roadway or a working surface in a self-walking mode, and a machine body device of the drilling machine and a rail pass through a slewing device together through manpower through the slewing device, and the top hole drilling and a guide device are aligned to a designed hole position, oil pressure power is provided for each jack through a reversing valve by a hydraulic station, so that vertical positioning and stable support of the drilling machine device and horizontal support of a coal wall are realized, firstly, a gas outburst accident is prevented during top hole drilling operation, and secondly, a reverse thrust action is realized when a top hole drilling sleeve device is pulled out after the top hole drilling operation is finished; the track pitch angle is adjusted and supported as required, the drilling machine and the roadway environment form a stable operation whole through the support of the aspects, namely, the distance of the minimum resistance line of the gas outburst coal seam damage is fully prolonged, and the absolute safety of personnel during the operation of drilling the top hole is ensured.
After all the steady machine, the support, the angle and the hole position are positioned and the drill rod, the sleeve device and the composite drill bit device are connected, the hydraulic power device can be started after all the preparation work is normal, the reversing valve is controlled to provide oil pressure power for the drilling power device so as to drive the drill rod and the composite drill bit, so that the cutting operation of the coal (gangue) body can be realized, after the drill rod and the composite drill bit rotate normally, the reversing valve provides oil pressure power for the drilling propelling jack so as to generate power for propelling the drilling power device forwards, the drill rod and the sleeve are synchronously propelled to the deep part of the coal bed by controlling the drilling rod propelling jack and the drill sleeve propelling jack, during the period, the composite drill bit firstly rotates on the drill bit body connected with the drill rod, and drives the spline sleeve through the spline to form a spline transmission form and synchronously rotate together to perform reaming type composite drilling on the coal (gangue), the pipe type cutting body at the end of the sleeve pipe is driven to rotate together with the whole pipe, and a combined type drilling and cutting function is generated on a coal (gangue) body, so that the requirements of various complex drilling environments are met, the pore-forming task with any pore diameter smaller than 0.8m can be smoothly completed, and the requirement of a large-diameter drilling hole under a coal mine is met.
The drilling machine can be divided into the following parts according to the different sizes of the roadway sections in the underground coal mine operation environment: specifications and models such as ZDYS-2X3200S-6, ZDYS-2X4500S-9, ZDYS-2X6000S-12, ZDYS-2X8500S-15, ZDYS-2X12000S-18, a drill rod device and a sleeve device: diameter: from 55mm phi to 800mm phi, the length is divided into 800mm, 1000mm, 1200mm and other specifications. Drilling the depth of a top hole: ranging from 2 × 160m to 2 × 500 m.
Because the on-site environment of the underground coal mine roadway and the working face is considered, and the comprehensive analysis of the coal market environment, the coal mine economic benefit and the like is carried out at present, simple, practical, economic and reliable equipment with one machine and multiple functions is the first choice of coal enterprises and users, and high safety, high efficiency and low cost are basic guarantees for the virtuous and development of the coal enterprises.
It should be noted that: although a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of the invention may be ascertained or derived directly from the disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the invention is to be understood and interpreted to cover all such other variations or modifications.
Claims (6)
1. A coal mine ultra-large diameter drilling system, comprising: the drilling machine comprises a drilling machine body, a drilling machine walking mechanism, a hydraulic power mechanism, a propelling mechanism, a drilling hole positioning and angle adjusting mechanism, a drilling machine supporting mechanism, a rotating mechanism and a drilling power mechanism, wherein the drilling machine body is arranged on a drilling machine main beam to form a framework platform for installing other related devices; it is characterized in that the preparation method is characterized in that,
a. the drill traveling mechanism mainly comprises a traveling driving wheel and a traveling motor, is arranged on a drill main beam, and drives the traveling driving wheel to operate through the traveling motor so as to provide forward and backward driving force for the drill;
b. the hydraulic power mechanism mainly comprises a hydraulic station arranged on the body of the drilling machine, a jack and a reversing valve arranged on the body, and forms a hydraulic power system for drilling operation;
c. the propelling mechanism mainly comprises a track arranged on a drilling machine body, and a sleeve propelling device, a drilling propelling device and a guiding device which are arranged on the track, and is used for guiding drilling, pushing pipes and propelling drilling;
d. the drilling positioning and angle adjusting mechanism mainly comprises an adjusting device and a rail support, wherein the adjusting device is arranged between the rail and the machine body frame to form a drilling positioning mechanism of the drilling machine, and the adjusting device and the rail support form a drilling angle adjusting system;
e. the drilling machine supporting mechanism comprises a chassis support, a drilling machine support, a supporting device and a track support, is respectively arranged on the drilling machine body and the track and is a supporting and stabilizing system during the operation of the drilling machine, and is respectively connected with a corresponding jack; the jack is connected with the hydraulic station; wherein the track is supported and installed on the machine body through the track;
f. a slewing device of the slewing mechanism is arranged on the plane of the main beam of the drilling machine and matched with the machine body to form the slewing mechanism;
g. the drilling power mechanism comprises a drilling power device, a drilling propelling device, a sleeve propelling device, a drill rod, a combined drill bit and a tubular cutting body, the drilling power device is installed on the sleeve propelling device through a bottom plate, the drilling power device is connected with a hydraulic station and the drilling propelling device, and forward pushing or backward pulling of drilling operation on the drill rod is realized under the control of the drilling propelling device.
2. The coal mine ultra-large diameter drilling system according to claim 1, wherein the guide device is of a sliding rod structure and is movably arranged in an H-shaped groove of the track.
3. The coal mine ultra-large diameter drilling system of claim 2, wherein the guide device is connected to the guide jack with a pin.
4. The coal mine ultra-large diameter drilling system according to claim 1, wherein the adjusting device is composed of a height adjusting device and an angle adjusting device, and the drilling height and the drilling angle are completed by the adjusting device.
5. The coal mine ultra-large diameter drilling system according to claim 4, wherein the reversing valve is a hydraulic reversing valve, is connected with a hydraulic station, and is mounted on the drilling machine body.
6. The coal mine ultra-large diameter drilling system according to claim 1, wherein a drill pipe is mounted at a drill pipe joint on the power head; the casing device is arranged on the casing propelling device, and the composite drill bit is arranged at the top end of the drill rod and the top end of the casing device.
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| CN201610548041.3A CN105927143A (en) | 2016-07-13 | 2016-07-13 | Coal mine ultra-large diameter hole drilling system |
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| CN201610548041.3A CN105927143A (en) | 2016-07-13 | 2016-07-13 | Coal mine ultra-large diameter hole drilling system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108222824A (en) * | 2017-10-13 | 2018-06-29 | 广州正顺机械技术开发有限公司 | A kind of mining machine with high accuracy |
| CN108222825A (en) * | 2017-10-13 | 2018-06-29 | 广州正顺机械技术开发有限公司 | A kind of New Mine miner |
| CN108222826A (en) * | 2017-10-13 | 2018-06-29 | 广州正顺机械技术开发有限公司 | A kind of efficiently mining machine |
| CN111677444A (en) * | 2020-06-09 | 2020-09-18 | 太原理工大学 | A vertically oriented large-diameter counter-rotating horizontal drilling rig and method for pre-draining coal seam gas |
| CN113585963A (en) * | 2021-06-29 | 2021-11-02 | 华北科技学院(中国煤矿安全技术培训中心) | Coal mine drilling machine capable of being adjusted according to drilling angle |
| CN118148495A (en) * | 2024-01-30 | 2024-06-07 | 中铁一局集团市政环保工程有限公司 | A grouting drilling machine with high efficiency |
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| CN113585963A (en) * | 2021-06-29 | 2021-11-02 | 华北科技学院(中国煤矿安全技术培训中心) | Coal mine drilling machine capable of being adjusted according to drilling angle |
| CN118148495A (en) * | 2024-01-30 | 2024-06-07 | 中铁一局集团市政环保工程有限公司 | A grouting drilling machine with high efficiency |
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Inventor after: Chen Fengping Inventor after: Zhang Jie Inventor after: Li Baoling Inventor after: Hou Hanlong Inventor after: Li Hongbo Inventor after: Jiang Xinjun Inventor after: Liu Zhiwen Inventor after: Xu Weiwei Inventor after: Wang Shibin Inventor after: Liu Xinmin Inventor after: Li Jianmin Inventor after: Zhang Dongyang Inventor after: Wang Guiping Inventor after: Su Honggang Inventor before: Chen Fengping Inventor before: Li Baoling Inventor before: Hou Hanlong Inventor before: Li Hongbo Inventor before: Xu Weiwei Inventor before: Jiang Xinjun Inventor before: Wang Shibin Inventor before: Liu Zhiwen Inventor before: Liu Xinmin Inventor before: Li Jianmin Inventor before: Zhang Dongyang Inventor before: Wang Guiping Inventor before: Su Honggang Inventor before: Zhang Jie |
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Application publication date: 20160907 |
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