CN115012875B - Integrated drilling machine for mining drilling and hole sealing - Google Patents
Integrated drilling machine for mining drilling and hole sealing Download PDFInfo
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- CN115012875B CN115012875B CN202210699211.3A CN202210699211A CN115012875B CN 115012875 B CN115012875 B CN 115012875B CN 202210699211 A CN202210699211 A CN 202210699211A CN 115012875 B CN115012875 B CN 115012875B
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- 238000007789 sealing Methods 0.000 title claims abstract description 170
- 238000005553 drilling Methods 0.000 title claims abstract description 107
- 238000005065 mining Methods 0.000 title claims abstract description 19
- 238000000605 extraction Methods 0.000 claims description 17
- 238000007667 floating Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 description 14
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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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
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a mining drilling and hole sealing integrated drilling machine, which belongs to the technical field of coal mine drilling machines and comprises a drilling machine body and a grouting hole packer, wherein the drilling machine body comprises a frame, and a power head and a clamp holder which are arranged on the frame; the grouting hole packer comprises a supporting seat arranged at the front end of a drilling machine body, a supporting plate is arranged on the supporting seat, a traction driving device is connected to the supporting plate so that the supporting plate can move along a longitudinal sliding rail which is arranged on the supporting seat and is parallel to the longitudinal setting of the drilling machine, a grouting unit with a grouting cavity coaxial with the clamping center of the drilling machine body is arranged on the supporting plate, the grouting cavity of the grouting unit is surrounded by a left half cavity and a right half cavity which are oppositely arranged, the left half cavity and the right half cavity can move in opposite directions, and the grouting hole packer further comprises a hole sealing unit which can be detachably connected with a driving drill rod of the drilling machine so as to finish grouting by means of rotary power of the drilling machine body. The invention realizes the integration of drilling and grouting hole sealing, thereby improving the hole sealing efficiency and realizing the mechanization and automation of hole sealing.
Description
Technical Field
The invention belongs to the technical field of coal mine drilling machines, and relates to a mining drilling and hole sealing integrated drilling machine.
Background
The drilling and hole sealing technology is one of key technologies in gas treatment, and the hole sealing and the drilling are separated construction due to the specificity of hole sealing, so that the unification of the drilling and the hole sealing cannot be adopted. In addition, the hole sealing and drilling use the same position aperture, require repeated positioning accuracy high, have the hole sealing equipment secondary location degree of difficulty big, the hole sealing inefficiency, intensity of labour is big, the big problem of automatic hole sealing degree of difficulty.
Disclosure of Invention
In view of this, the purpose of this application is to provide a mining drilling, hole sealing integrated type rig to realize drilling and slip casting hole sealing's integration.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the mining drilling and hole sealing integrated drilling machine comprises a drilling machine body and a grouting hole packer, wherein the drilling machine body comprises a frame, and a power head and a clamp holder which are arranged on the frame; the grouting hole packer comprises a supporting seat arranged at the front end of a drilling machine body, a supporting plate is arranged on the supporting seat, a traction driving device is connected to enable the supporting plate to move along a longitudinal sliding rail which is arranged on the supporting seat and is parallel to the longitudinal direction of the drilling machine, a grouting unit which is coaxial with the clamping center of the drilling machine body is arranged on the supporting plate, the grouting cavity of the grouting unit is surrounded by a left half cavity and a right half cavity which are oppositely arranged, the left half cavity and the right half cavity are connected on the corresponding cavity seat in a floating mode, the cavity seat is connected with a cavity seat driving device which can enable the cavity seat to move along a transverse sliding rail which is arranged on the supporting plate and is perpendicular to the longitudinal sliding rail, so that the left half cavity and the right half cavity can move oppositely and reversely, a sealing cover is arranged at one end, far away from the drilling machine body, of the grouting cavity is connected with a gas extraction hole in a sealing mode, and the sealing cover comprises a left half sealing cover and a right half sealing cover which are oppositely arranged, and the left half sealing cover is connected with the corresponding cavity seat and can form a sealing cavity with a peripheral surface; the device comprises a drilling machine main body, a drilling machine driving drill rod, a hole sealing unit, a gas extraction hole, a sealing agent conveying device and a sealing device, wherein the drilling machine main body is provided with a driving drill rod, the driving drill rod is detachably connected with the drilling machine driving drill rod to complete grouting by means of rotation power of the drilling machine main body, the circumference of the hole sealing unit is provided with a spiral groove to convey the sealing agent in a grouting cavity to the gas extraction hole by rotation of the spiral groove.
Optionally, the hole sealing unit comprises a filter pipe, at least one spiral feeding pipe, a spiral hole sealing pipe and a propelling pipe which are sequentially arranged, and the rear ends of the filter pipe can be detachably connected with the driving drill rod of the drilling machine; the adjacent ends of the filter pipe, the spiral feeding pipe and the spiral hole sealing pipe can form threaded connection; spiral grooves with the rotation directions opposite to the rotation directions of the drilling machine during drilling are formed in the circumferences of the spiral feeding pipe and the spiral hole sealing pipe so as to form a hole sealing agent conveying channel; the rear ends of the filter pipe and the spiral hole sealing pipe are circumferentially provided with a sealing ring with an exhaust hole so as to realize sealing and exhaust of the hole sealing agent; the filter pipe, the spiral feeding pipe and the spiral hole sealing pipe are provided with central holes and are communicated with each other to form a gas channel, a plurality of air holes communicated with the central holes of the filter pipe are formed in the filter pipe so as to enable gas to pass through, and a one-way valve is arranged at the rear end of the spiral hole sealing pipe so as to control the on-off of the gas channel; the pushing pipe is used for pushing the spiral hole sealing pipe into the gas extraction hole.
Optionally, the pushing tube pushes the spiral hole sealing tube through a boss at the front end of the pushing tube.
Optionally, the shutoff circle includes the self-tightening ring that a plurality of intervals set up, and the internal diameter of self-tightening ring matches with the external diameter of spiral hole sealing tube, connects through the self-expanding area between the adjacent self-tightening ring, has offered a plurality of exhaust holes from expanding area.
Optionally, one end of the left half cavity and the right half cavity, which is close to the cavity seat, is provided with a connecting boss, the connecting boss is clamped in a limiting groove formed on the corresponding cavity seat, and the width of the limiting groove is larger than the thickness of the connecting boss; overflow springs are arranged between the left half cavity, the right half cavity and the corresponding cavity seats; the front end plate and the rear end plate are respectively arranged at the connecting parts of the front side and the rear side of the two cavity seats, which correspond to the cavity body and the cavity seats.
Optionally, cavity seat drive arrangement includes fixing base fixed for the backup pad, and the opposite side of two fixing bases is equipped with coaxial piston cylinder and the business turn over hydraulic fluid port with piston cylinder intercommunication, is equipped with the piston in the piston cylinder, and the one end that the piston stretched out the piston cylinder is connected with the cavity seat, is equipped with the both ends rather than fixed connection's many guide bars between two fixing bases, and the guide bar runs through the cavity seat and rather than sliding connection.
Optionally, the guide rods are 4, and are symmetrically arranged on the upper side and the lower side of the piston cylinder in two rows.
Optionally, the grouting cavity is a step cavity with a large middle and small two ends.
Optionally, the joint surface of the left half cavity and the right half cavity is provided with a step structure to form plug connection, and the step structure near the top of the grouting cavity is provided with a groove structure to form an overflow channel.
Optionally, the sealing cavity is in a horn shape, and the inner diameter of one end far away from the grouting cavity is larger than the inner diameter of one end close to the grouting cavity.
The invention has the beneficial effects that: on the same equipment, not only can the drilling construction be realized, but also the grouting hole sealing construction can be realized, the problem of secondary positioning precision is solved, the integration of drilling and grouting hole sealing is realized, the hole sealing efficiency is further improved, and the mechanization and automation of hole sealing are realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a drilling rig;
fig. 2 is a schematic structural view of a grouting hole packer;
fig. 3 is a schematic structural diagram of a hole sealing unit;
FIG. 4 is a schematic diagram of a grouting unit;
FIG. 5 is a schematic diagram of a grouting unit;
FIG. 6 is a schematic diagram of the right half of the cavity;
FIG. 7 is a second schematic diagram of the right cavity half;
FIG. 8 is a schematic view of the structure of a propulsion tube;
FIG. 9 is a schematic structural view of a spiral seal tube assembly;
FIG. 10 is a schematic view of the structure of the screw feed tube;
FIG. 11 is a schematic structural view of a filter tube assembly;
FIG. 12 is a schematic structural view of a stopper ring;
FIG. 13 is a schematic view of a check valve;
FIG. 14 is a schematic view of the structure of the valve body;
FIG. 15 is a schematic view of a structure of a sliding base;
fig. 16 is a schematic diagram of a drilling rig.
Reference numerals: drill body 1, grouting sealer 2, power head 11, frame 12, holder 13, sealing unit 21, push tube 211, push tube connection internal thread 2111, push tube central hole 2112, boss 2113, screw sealing tube assembly 212, sealing ring 2121, self-expanding band 21211, self-tightening ring 21212, exhaust hole 21213, screw sealing tube 2122, screw sealing tube connection internal thread 21221, screw sealing tube annular groove 21222, check valve mounting internal thread 21223, screw sealing tube spiral groove 21224, screw sealing tube central hole 21225, screw sealing tube connection external thread 21226, check valve 2123, top opening 21231, valve body 21232, auxiliary mounting groove 212321, valve core 21233, return spring 21234, front baffle 21235, retainer 21236 screw feed tube 213, screw feed tube connection internal thread 2131, screw feed tube central bore 2132, screw feed tube screw groove 2133, screw feed tube connection external thread 2134, filter tube assembly 214, filter tube 2141, filter tube connection internal thread 21411, filter tube annular groove 21412, filter tube central bore 21413, vent 21414, grouting unit 22, bottom plate 221, cavity block assembly 222, overflow spring 223, cavity body 224, overflow spring mounting bore 2241, slit ring 2242, slurry receiving chamber 2243, overflow channel 2244, grouting port 2245, connection boss 2246, grouting joint 225, seal cap 226, slip base 23, ear base 231, support plate 232, longitudinal runner 2321, support block 233.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 16, a mining drilling and hole sealing integrated drilling machine comprises a drilling machine body 1, a grouting hole packer 2 and a hydraulic pump station connected with the drilling machine body 1 and the grouting hole packer 2; the grouting hole packer 2 is arranged at the front end of the drilling machine body 1 and comprises a sliding base 23, a grouting unit 22 and a hole sealing unit 21. The sliding base 23 comprises a supporting seat 233 arranged at the front end of the drilling machine body 1, a supporting plate 232 is arranged on the supporting seat 233, the supporting plate 232 is connected with a traction driving device so as to enable the supporting plate 232 to move along a longitudinal sliding rail which is arranged on the supporting seat 233 and is parallel to the longitudinal setting of the drilling machine, and the supporting plate 232 is matched with the longitudinal sliding rail through longitudinal sliding grooves 2321 which are arranged at two ends of the lower side of the supporting plate and are opposite to each other. The traction drive may be a hydraulic cylinder connected to the support plate 232 by an ear mount 231. The grouting unit 22 is provided on the support plate 232 with its grouting chamber coaxial with the clamping center of the drill body 1. The hole sealing unit 21 can be detachably connected with the driving drill rod of the drilling machine to finish grouting by means of the rotation power of the drilling machine body 1, and the circumference of the hole sealing unit 21 is provided with a spiral groove to convey the hole sealing agent in the grouting cavity into the gas extraction hole through the rotation of the spiral groove.
The grouting unit 22 comprises a bottom plate 221 which is positioned above a supporting plate 232 and detachably connected with the supporting plate, a cavity seat assembly 222 is arranged on the bottom plate 221, the cavity seat assembly 222 comprises cavity seat driving devices which are oppositely arranged at two ends of the bottom plate 221, the cavity seat driving devices can be hydraulic driving devices and comprise fixing seats which are fixed relative to the bottom plate 221, coaxial piston cylinder barrels and oil inlet and outlet ports which are communicated with the piston cylinder barrels are arranged at opposite sides of the two fixing seats, hydraulic joints are arranged at the oil inlet and outlet ports, pistons are arranged in the piston cylinder barrels, one ends of the pistons extending out of the piston cylinder barrels are connected with cavity seats, and the cavity seats move along transverse sliding rails which are arranged on the bottom plate 221 and are perpendicular to longitudinal sliding rails under the action of the pistons; a cavity body 224 is arranged between the two cavity seats, the cavity body 224 comprises a left half cavity and a right half cavity which are oppositely arranged, and the left half cavity and the right half cavity are in floating connection with the corresponding cavity seats and can form a grouting cavity with a closed circumferential surface; the left half cavity and/or the right half cavity are/is provided with a grouting port 2245 communicated with the grouting cavity, and a grouting joint 225 is arranged at the grouting port 2245; the outlet end of the grouting cavity is provided with a sealing cover 226 for realizing the sealing connection between the grouting cavity and the gas extraction hole, the sealing cover 226 comprises a left half sealing cover and a right half sealing cover which are oppositely arranged, and the left half sealing cover and the right half sealing cover are connected with the corresponding cavity seats and can enclose a sealing cavity with a closed peripheral surface; the front end plate and the rear end plate are respectively arranged at the connecting parts of the front side and the rear side of the two cavity seats, which correspond to the cavity body 224 and the cavity seats.
The cavity body 224 may be floatingly arranged in the following manner: one end of the left half cavity and one end of the right half cavity, which are close to the cavity seat, are provided with a connecting boss 2246, the connecting boss 2246 is clamped in a limiting groove formed in the corresponding cavity seat, and the width of the limiting groove is larger than the thickness of the connecting boss 2246; an overflow spring 223 is arranged between the left half cavity and the right half cavity and the corresponding cavity seat so as to detect the pressure of the grouting cavity and the formation of an overflow channel.
The grouting cavity of the cavity body 224 is a step cavity with large middle and small two ends, the joint surface of the left half cavity and the right half cavity is provided with a step structure to form plug connection, and the step structure near the top of the grouting cavity is provided with a groove structure to form an overflow 2244, specifically, the left half cavity and the right half cavity of the cavity body 224 are provided with overflow spring mounting holes 2241, slit rings 2242, a slurry accommodating cavity 2243, an overflow 2244, a grouting port 2245 and a connecting boss 2246.
In order to prevent the cavity seat assembly 222 from separating from the bottom plate 221, the invention is provided with two transverse sliding rails which are oppositely arranged on the bottom plate 221, and the opposite sides of the two transverse sliding rails are provided with sliding grooves which are in sliding connection with the cavity seat, and the two ends of the sliding grooves are provided with limiting rods.
In order to improve the stress of the device and realize the reliable butt joint of the left half cavity and the right half cavity, a plurality of guide rods with two ends fixedly connected with the guide rods are arranged between the two fixing seats, and the guide rods penetrate through the cavity seats and are in sliding connection with the cavity seats. Preferably, the number of the guide rods is 4, and the guide rods are symmetrically arranged on the upper side and the lower side of the piston cylinder in two rows.
The guide rod is a stepped shaft and comprises a limiting section positioned in the middle, guide sections positioned at two ends of the limiting section and a connecting section positioned at the other ends of the two guide sections; the connecting section is connected with the fixed seat and comprises an optical axis section in sliding fit with the fixed seat and a thread section for installing a nut, and a limit thread is arranged on the thread section; the guide section is connected with the cavity seat, and one end of the guide section, which is close to the connecting section, is provided with a limiting boss to limit the limiting position of the cavity seat. Preferably, the diameters of the limiting section, the guiding section and the connecting section are sequentially decreased, so that limiting steps are formed between the adjacent sections.
The inner diameter of the sealing cover 226 at the end far away from the grouting cavity is not smaller than the inner diameter at the end near the grouting cavity, and the sealing cover can be in a horn shape, a cylinder shape or a cone shape, and preferably in a horn shape.
The hole sealing unit 21 comprises a filter pipe 2141, at least one spiral feeding pipe 213, a spiral hole sealing pipe 2122 and a pushing pipe 211 which are sequentially arranged and the rear ends of the filter pipe 2141 can be detachably connected with a driving drill rod of a drilling machine; spiral grooves with the rotation direction opposite to the rotation direction of the drilling machine during drilling are formed in the circumferences of the spiral feeding pipe 213 and the spiral hole sealing pipe 2122 so as to form a hole sealing agent conveying channel; the rear ends of the filter tube 2141 and the spiral hole sealing tube 2122 are circumferentially provided with a sealing ring 2121 with an exhaust hole 21213 so as to realize sealing and exhaust of the hole sealing agent; the filter tube 2141, the spiral feeding tube 213 and the spiral hole sealing tube 2122 are provided with central holes and are communicated with each other to form a gas channel, the filter tube 2141 is provided with a plurality of ventilation holes 21414 communicated with the central holes so as to enable gas to pass through, and the rear end of the spiral hole sealing tube 2122 is provided with a one-way valve 2123 so as to control the on-off of the gas channel; the pushing tube 211 is used for pushing the spiral hole sealing tube 2122 into the gas extraction hole. The filter tube 2141 and the sealing ring 2121 circumferentially arranged at the rear end thereof form a filter tube assembly 214, and the spiral sealing tube 2122 and the sealing ring 2121 circumferentially arranged at the rear end thereof and the check valve 2123 at the rear end thereof form a spiral sealing tube assembly 212.
The invention realizes spiral whole-course propelling grouting, reduces the resistance of hole sealing grouting through the spiral grouting of the hole packer, and can realize mechanized hole sealing through the drilling mechanism.
The check valve 2123 of the present invention may have the following structure: comprises a top opening piece 21231, a valve body 21232, a valve core 21233 and a reset mechanism; the valve body 21232 is in threaded connection with the central hole 21225 of the spiral hole sealing pipe; the valve body 21232 is provided with a first valve cavity and a second valve cavity which are coaxial therewith and arranged front to back; the cross section of the second valve cavity comprises a plurality of sections of first arc-shaped sections which are in common circles and second arc-shaped sections which are the same as the first arc-shaped sections in number and are in common circles, the second arc-shaped sections are concentric with the first arc-shaped sections and are arranged at intervals, and the second arc-shaped sections are smoothly connected with the adjacent first arc-shaped sections through curve sections; the valve core 21233 comprises a rod part, the rod part is in sliding connection with a first arc section of the second valve cavity, the front end of the rod part extends into the first valve cavity, a sealing part positioned in the middle of the rod part is positioned in the first valve cavity, the sealing part is attached to the joint surface of the first valve cavity and the second valve cavity to separate the first valve cavity from the second valve cavity, the front end of the rod part is in sliding connection with a front baffle 21235 arranged in the valve body 21232, and the front side and the rear side of the front baffle 21235 are limited by a step surface and a retaining ring 21236 respectively; the front baffle 21235 is provided with a through hole communicated with the first valve cavity; the rear end of the rod part extends out of the valve body 21232 and is fixedly connected with the jacking piece 21231; the valve core 21233 moves forward under the action of external force along with the jacking plate 21231 and resets under the action of the resetting mechanism. The return mechanism may be a return spring 21234, with the return spring 21234 sleeved on the stem and located between the front baffle 21235 and the seal. The connection between the valve body 21232 and the screw-type sealing tube 2122 may be a threaded connection, and the threaded connection with the screw-type sealing tube 2122 is achieved by providing an external thread in the circumferential direction of the valve body 21232.
The invention is provided with a plurality of auxiliary mounting grooves 212321 on the rear end surface of the valve body 21232 so as to facilitate the mounting of the check valve 2123, the auxiliary mounting grooves 212321 can be U-shaped, and the openings are uniformly distributed on the circumference of the rear end surface of the valve body 21232 outwards.
The plugging ring 2121 comprises a plurality of self-tightening rings 21212 which are arranged at intervals, wherein the self-tightening rings 21212 are arranged at the periphery of the rear ends of the spiral hole sealing pipe 2122 and the filter pipe 2141, the adjacent self-tightening rings 21212 are connected through self-expanding belts 21211, and a plurality of exhaust holes 21213 are formed in the self-expanding belts 21211. According to the invention, exhaust is carried out through the exhaust holes 21213 on the two end plugging rings 2121, and the exhaust holes 21213 have a larger length-diameter ratio, so that the hole sealing agent can be effectively prevented from passing through.
The propelling pipe 211 is provided with a propelling pipe central hole 2112 and is in threaded connection with the driving drill rod through a propelling pipe connecting internal thread 2111 arranged at the rear end of the propelling pipe; the middle part of the spiral hole sealing tube 2122 is circumferentially provided with a spiral hole sealing tube spiral groove 21224 for being in threaded connection with the driving drill rod, the rear end is circumferentially provided with a spiral hole sealing tube annular groove 21222 for mounting a sealing ring 2121, the front end is circumferentially provided with a spiral hole sealing tube connecting external thread 21226 for being connected with the spiral feeding tube 213, the rear end is provided with a spiral hole sealing tube connecting internal thread 21221 for being in threaded connection with the driving drill rod, and the rear end of a spiral hole sealing tube central hole 21225 is provided with a check valve mounting internal thread 21223 for mounting a check valve 2123; the middle part of the spiral feeding pipe 213 is circumferentially provided with a spiral feeding pipe spiral groove 2133, the front end is circumferentially provided with a spiral feeding pipe connecting external thread 2134 for connecting with the filter pipe 2141, the rear end is provided with a spiral feeding pipe connecting internal thread 2131 for connecting with the driving drill rod in a threaded manner, and a spiral feeding pipe central hole 2132 is communicated with a spiral hole sealing pipe central hole 21225; the rear end of the filter tube 2141 is circumferentially provided with a filter tube annular groove 21412 for mounting the plugging ring 2121, and the rear end is provided with a filter tube connecting internal thread 21411 for threaded connection with the active drill rod, and a filter tube central hole 21413 is communicated with the screw feed tube central hole 2132. The adjacent ends of filter tube 2141, screw feed tube 213, screw sealer 2122 of the present invention can be threaded and the direction of rotation of the threads is the same as the direction of rotation of the drill when drilling.
The screw connection between the pushing tube 211 and the screw hole sealing tube 2122 is not suitable for avoiding the problem that the pushing tube is difficult to separate from the screw hole sealing tube 2122, and a boss 2113 is arranged at the front end of the pushing tube 211 for pushing the screw hole sealing tube 2122.
The drill body 1 may be various types of mining drills. Mainly comprises a power head 11, a frame 12 and a clamp 13. The power head 11 moves back and forth under the action of the frame pushing driving piece, so that the feeding of the drill rod and the grouting hole packer 2 is realized; the frame 12 is responsible for adjusting the position of a drilling hole, supports and connects the power head 11, the clamp 13 and the grouting hole packer 2, and the propelling driving piece provides propelling power for the power head 11; and the clamp holder 13 is used for clamping the drill rod and is matched with the power head 11 to realize threaded connection and disassembly between the drill rod and each part of the grouting hole packer 2.
The invention controls the actions of the drilling device and the grouting hole sealing unit through an operating system, adopts a switching valve to switch a drilling hydraulic circuit and a hole sealing hydraulic circuit, drills into a high-pressure circuit, and seals holes into a low-pressure circuit.
The working principle of the invention is as follows:
1. drilling principle (same general mining drilling machine):
(1) Operating a switching valve to switch the system to a high-pressure loop;
(2) The grouting unit 22 is adjusted to an open state and slides to one end close to the drill body 1 so as to keep a certain distance from the coal wall;
(2) Drilling a gas drainage hole by adding a drill rod;
(3) And (5) exiting all drilling tools in the gas extraction hole and waiting for hole sealing.
2. Hole sealing working principle:
after the gas extraction hole drilling is completed, the position of the drilling machine is unchanged, the mixed state of the hole sealing agent is adjusted to meet the hole sealing requirement, and the grouting unit 22 is opened.
(1) The switching valve is operated to switch the system to the low pressure circuit.
(2) Operating the traction driving device of the sliding base 23 to enable the sealing cover of the grouting unit 22 to be in contact with the coal wall;
(3) The filter pipe assembly 214 at the front end of the hole sealing unit 21 is sent into a gas extraction hole by using the drilling machine body 1, and is clamped by using the clamp holder 13 of the drilling machine body 1;
(4) Connecting a spiral feeding pipe 213 with a filter pipe assembly 214 by using the drill body 1, and feeding the spiral feeding pipe 213 together with the filter pipe assembly 214 into the deep part of the gas extraction hole;
(5) Sequentially adding the spiral feeding pipes 213 to a required depth;
(6) The spiral hole sealing tube assembly 212 is connected in an adding mode, and the rear end of the spiral groove of the spiral hole sealing tube assembly 212 is pushed into the grouting cavity of the grouting unit 22;
(7) Closing the grouting unit 22 to form a closed grouting cavity;
(8) The hole sealing agent enters the grouting cavity through the grouting joint 225 of the grouting unit 22;
(9) The drilling machine body 1 rotates, and the hole sealing agent is sent into the gas extraction hole through the spiral groove of the hole sealing unit 21;
(10) The hole sealing agent gradually fills the gas hole, and as the grouting pressure increases, a grouting cavity of the grouting unit 22 is slightly opened under the action of the hole sealing agent pressure, and the redundant hole sealing agent overflows from the cavity;
(11) The clamp 13 of the drill body 1 clamps the spiral hole sealing tube assembly 212;
(12) The drill body 1 is reversed and moved backwards;
(13) A pushing pipe 211 is connected between the driving drill rod of the drilling machine body 1 and the spiral hole sealing pipe assembly 212, the grouting unit 22 is opened, and then the hole packer is completely pushed into the gas extraction hole through the clamp holder 13 of the drilling machine body 1;
(14) The drilling machine body 1 retreats to finish hole sealing.
(15) The gripper 13 clamps the pushing tube 211, the power head 11 is reversed, and the drill body 1 drives the drill rod to be separated from the pushing tube 211;
(16) The gripper 13 is released, the pushing tube 211 is removed, and the hole sealing operation is completed.
The invention realizes the integration of drilling and grouting hole sealing, improves the grouting hole sealing efficiency, and realizes the mechanization and automation of grouting hole sealing.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a mining drilling, hole sealing integrated form rig which characterized in that: the device comprises a drilling machine body and a grouting hole packer, wherein the drilling machine body comprises a frame, and a power head and a clamp holder which are arranged on the frame; the grouting hole packer comprises a supporting seat arranged at the front end of a drilling machine body, a supporting plate is arranged on the supporting seat, a traction driving device is connected to enable the supporting plate to move along a longitudinal sliding rail which is arranged on the supporting seat and is parallel to the longitudinal direction of the drilling machine, a grouting unit which is coaxial with the clamping center of the drilling machine body is arranged on the supporting plate, the grouting cavity of the grouting unit is surrounded by a left half cavity and a right half cavity which are oppositely arranged, the left half cavity and the right half cavity are connected on the corresponding cavity seat in a floating mode, the cavity seat is connected with a cavity seat driving device which can enable the cavity seat to move along a transverse sliding rail which is arranged on the supporting plate and is perpendicular to the longitudinal sliding rail, so that the left half cavity and the right half cavity can move oppositely and reversely, a sealing cover is arranged at one end, far away from the drilling machine body, of the grouting cavity is connected with a gas extraction hole in a sealing mode, and the sealing cover comprises a left half sealing cover and a right half sealing cover which are oppositely arranged, and the left half sealing cover is connected with the corresponding cavity seat and can form a sealing cavity with a peripheral surface; the device comprises a drilling machine main body, a drilling machine driving drill rod, a hole sealing unit, a gas extraction hole, a sealing agent conveying device and a sealing device, wherein the drilling machine main body is provided with a driving drill rod, the driving drill rod is detachably connected with the drilling machine driving drill rod to complete grouting by means of rotation power of the drilling machine main body, the circumference of the hole sealing unit is provided with a spiral groove to convey the sealing agent in a grouting cavity to the gas extraction hole by rotation of the spiral groove.
2. The mining drilling, hole sealing integrated drilling machine according to claim 1, wherein: the hole sealing unit comprises a filter pipe, at least one spiral feeding pipe, a spiral hole sealing pipe and a propelling pipe which are sequentially arranged, and the rear ends of the filter pipe can be detachably connected with the driving drill rod of the drilling machine; the adjacent ends of the filter pipe, the spiral feeding pipe and the spiral hole sealing pipe can form threaded connection; spiral grooves with the rotation directions opposite to the rotation directions of the drilling machine during drilling are formed in the circumferences of the spiral feeding pipe and the spiral hole sealing pipe so as to form a hole sealing agent conveying channel; the rear ends of the filter pipe and the spiral hole sealing pipe are circumferentially provided with a sealing ring with an exhaust hole so as to realize sealing and exhaust of the hole sealing agent; the filter pipe, the spiral feeding pipe and the spiral hole sealing pipe are provided with central holes and are communicated with each other to form a gas channel, a plurality of air holes communicated with the central holes of the filter pipe are formed in the filter pipe so as to enable gas to pass through, and a one-way valve is arranged at the rear end of the spiral hole sealing pipe so as to control the on-off of the gas channel; the pushing pipe is used for pushing the spiral hole sealing pipe into the gas extraction hole.
3. The mining drilling and hole sealing integrated drilling machine according to claim 2, wherein: the pushing tube pushes the spiral hole sealing tube through a boss at the front end of the pushing tube.
4. The mining drilling and hole sealing integrated drilling machine according to claim 2, wherein: the plugging ring comprises a plurality of self-tightening rings arranged at intervals, the inner diameter of each self-tightening ring is matched with the outer diameter of the spiral hole sealing pipe, the adjacent self-tightening rings are connected through a self-expanding belt, and a plurality of exhaust holes are formed in the self-expanding belt.
5. The mining drilling, hole sealing integrated drilling machine according to claim 1, wherein: one end of the left half cavity and one end of the right half cavity, which are close to the cavity seat, are provided with a connecting boss, the connecting boss is clamped in a limiting groove formed in the corresponding cavity seat, and the width of the limiting groove is larger than the thickness of the connecting boss; overflow springs are arranged between the left half cavity, the right half cavity and the corresponding cavity seats; the front end plate and the rear end plate are respectively arranged at the connecting parts of the front side and the rear side of the two cavity seats, which correspond to the cavity body and the cavity seats.
6. The mining drilling, hole sealing integrated drilling machine according to claim 1, wherein: the cavity seat driving device comprises fixing seats fixed relative to the supporting plate, coaxial piston cylinder barrels and oil inlet and outlet ports communicated with the piston cylinder barrels are arranged on opposite sides of the two fixing seats, a piston is arranged in the piston cylinder barrels, one end of the piston extending out of the piston cylinder barrels is connected with the cavity seat, a plurality of guide rods with two ends fixedly connected with the two fixing seats are arranged between the two fixing seats, and the guide rods penetrate through the cavity seat and are in sliding connection with the cavity seat.
7. The mining drilling and hole sealing integrated drilling machine according to claim 6, wherein: the guide rods are 4 and are symmetrically arranged on the upper side and the lower side of the piston cylinder barrel in two rows.
8. The mining drilling, hole sealing integrated drilling machine according to claim 1, wherein: the grouting cavity is a step cavity with a large middle part and small two ends.
9. The mining drilling, hole sealing integrated drilling machine according to claim 1, wherein: the joint surface of the left half cavity and the right half cavity is provided with a step structure to form plug connection, and the step structure near the top of the grouting cavity is provided with a groove structure to form an overflow channel.
10. The mining drilling, hole sealing integrated drilling machine according to claim 1, wherein: the sealing cavity is in a horn shape, and the inner diameter of one end far away from the grouting cavity is larger than the inner diameter of one end close to the grouting cavity.
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| CN202210699211.3A CN115012875B (en) | 2022-06-20 | 2022-06-20 | Integrated drilling machine for mining drilling and hole sealing |
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| CN202210699211.3A CN115012875B (en) | 2022-06-20 | 2022-06-20 | Integrated drilling machine for mining drilling and hole sealing |
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| CN115012875B true CN115012875B (en) | 2023-06-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116658113B (en) * | 2023-07-17 | 2023-11-03 | 巴斯夫浩珂矿业化学（中国）有限公司 | Mining grouting hole packer |
| CN116607883B (en) * | 2023-07-19 | 2023-09-29 | 太原理工智能钻进研究院有限公司 | Directional drilling machine for gas extraction |
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