A water circulation type rock stratum drilling device

Abstract

The present invention relates to the technical field of rock formation drilling, and specifically to a water circulation type rock formation drilling device, which includes an equipment frame, a support frame erected on the equipment frame, and a support seat installed on the support frame. A drilling component is provided on the support seat; the drilling component includes an adjustment component installed on the support seat, an extension component provided on the adjustment component, and a drilling component installed on the extension component; the drilling component is also externally connected with a perfusion component. A liquid circulation end of the perfusion component is provided with a circulation pipeline. The extension component is of an inner hollow structure, and the circulation pipeline extends into the drilling component along the inner hollow area of the extension component and is provided with a slurry delivery end. Without interfering with the operation of the drilling component, the present application performs slurry circulation treatment of pumping slurry and grouting the soil layer in the rock formation space.

Description

Technical Field

[0001] The present invention relates to the technical field of rock formation drilling, and specifically to a water circulation type rock formation drilling device. Background Art

[0002] Currently, the hole-forming technology of down-the-hole hammer pipe following drilling has been widely applied in bored pile projects. Moreover, the large-diameter down-the-hole hammer pipe following drilling technology has also been widely used. For example, the full casing pipe following drilling hole-forming technology of large-diameter down-the-hole hammers has been used in many bored pile projects.

[0003] However, with the construction of modern large-scale super-high and super-heavy buildings, the demand for rock-socketed piles and cast-in-place piles into hard rock formations has increased. The application of rotary drilling rigs is subject to certain limitations. Especially when drilling in moderately weathered or slightly weathered granite formations with a strength exceeding 80 MPa, when using a rotary drilling rig, the cutting teeth or rock bits are severely worn, the machine vibrates greatly, the penetration rate is low, the time consumption is long, and the drilling cost is high. In addition, in small-diameter drilling such as rock blasting holes, water well bedrock holes, mine ventilation holes, geological drilling, and anchor drilling, small-diameter single-body flat-bottom down-the-hole hammers are relatively commonly used effective construction methods for rapid drilling in hard rock formations.

[0004] For the rock formation drilling technology, in the existing technology, the perfusion method is often through a pipeline penetrating the drilling end to input perfusion slurry. Such a perfusion method is often a one-way injection of slurry; for the two-way circulation input of slurry, existing rock formation drilling devices often do not adopt the two-way slurry circulation method because the design of the circulation pipeline will interfere with the pipeline at the drilling end.

[0005] However, during actual existing rock formation drilling operations, sometimes it is also necessary to extract and circulate the injection of slurry. For a one-way pipeline, each time the slurry is extracted and then input during circulation, a large amount of time will be wasted, and the operation efficiency is very low; then how to avoid the operation interference between the two-way slurry circulation pipeline and the drilling end is the direction that existing rock formation drilling devices need to design and improve. Summary of the Invention

[0006] The purpose of the present invention is to provide a water circulation type rock formation drilling device to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A water circulation type rock formation drilling device includes an equipment frame, a support frame erected on the equipment frame, and a support seat installed on the support frame. A drilling component is arranged on the support seat;

[0009] The drilling component includes an adjustment component installed on the support seat, an extension component arranged on the adjustment component, and a drilling component installed on the extension component;

[0010] The drilling machine is also externally connected to a perfusion component, a circulation pipeline is provided at the liquid circulation end of the perfusion component, the extension component is an internal hollow structure, the circulation pipeline extends into the drilling component along the internal hollow area of the extension component and is provided with a slurry delivery end.

[0011] As a further solution of the present invention: the drilling assembly includes a drill barrel connected to the extension assembly, the drill barrel is a cylindrical structure, the front section of the drill barrel of the drill barrel is inclined with a plurality of drill teeth, the outer wall of the drill barrel of the drill barrel is provided with spirally arranged threaded teeth, the rear section of the drill barrel of the drill barrel is installed with an outer hoop, and the sleeve surface of the outer hoop is equidistantly arranged with a plurality of rock-breaking cones.

[0012] As a further solution of the present invention: the inner cavity of the rear section of the drill barrel of the drilling rig barrel is provided with an internal support frame, the internal support frame is provided with an internal support base plate, the center line of the internal support base plate is provided with an inner barrel for passing a circulation pipeline, the outer edge of the inner support base plate is provided with a planing layer, the planing layer is arranged along the inner wall of the drill barrel of the drilling rig barrel, an inner throwing groove is spirally opened on the planing layer, and a number of reinforcing support rods are arranged between the inner barrel and the planing layer.

[0013] As a further solution of the present invention: the inner casting groove is designed as a concave spiral and a cutting edge is arranged toward the soil drilling end of the drilling machine barrel.

[0014] As a further solution of the present invention: a slurry delivery frame is arranged inside the shell of the inner barrel, and the slurry delivery frame includes a mounting frame installed in the inner barrel, a liquid passing end arranged at the front end of the mounting frame, and an infusion pipeline and a drainage pipeline passing through the inner cavity of the slurry delivery frame. A liquid passer is arranged at the liquid passing end, and the liquid passer is externally connected to the slurry delivery end and internally connected to the infusion pipeline and the drainage pipeline. The infusion pipeline and the drainage pipeline pass through the extension component and the drilling component, and their terminals are connected to the perfusion component.

[0015] As a further solution of the present invention: the infusion pipeline and the drainage pipeline are both provided with electric control valves, the electric control valves are installed on the infusion pipeline and the drainage pipeline and are provided with flow opening and closing ends, and the electric control valves are also provided with flow meters.

[0016] As a further solution of the present invention: the adjustment component includes a drive frame installed on the support base, the extension component is provided with a transmission section, the transmission section is an internally hollow threaded column structure, the inner frame of the drive frame is provided with an internal thread groove, and the transmission section is arranged in the internal thread groove.

[0017] As a further solution of the present invention: The support base includes a fixed base fixedly installed with the support frame, and a loading base integrated with the driving machine frame, and a buffer connection member is provided between the fixed base and the loading base.

[0018] As a still further solution of the present invention: The buffer connection member is installed on the fixed base, a primary connection slot is opened on the buffer connection member, a secondary connection slot is also opened at the installation position of the fixed base and the buffer connection member, an "I"-shaped interval is formed between the primary connection slot and the secondary connection slot, a combined block is provided on the loading base, the combined block fits with the "I"-shaped interval and a plurality of elastic cushion blocks are provided at the gap between the combined block and the "I"-shaped interval.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] In this application, the designed equipment rack is an integral equipment structure. The equipment rack can be externally installed on related auxiliary mechanical equipment such as walking traction vehicles and hoists, and the drilling parts are pushed by a pneumatic device to perform rock layer drilling and crushing operations. The support base is an installation component of the drilling parts to improve the stability of the operation of the drilling parts; the drilling parts are the operation components for rock layer drilling; the adjustment component is a power input mechanism to drive the extension component to move, so as to push towards the inner wall of the rock layer; the drilling component is used to break the rock layer soil, and the slurry delivery end contacts the internal space of the rock layer as the drilling component penetrates deeper, and the circulation pipeline is connected to the slurry delivery end, so as to achieve slurry circulation treatment of pumping slurry and grouting in the soil space in the rock layer without generating operation interference with the drilling component.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with this application, and are used together with the specification to explain the principles of this application. At the same time, these drawings and the text description are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the water circulation type rock layer drilling device provided by the embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the drilling component provided by the embodiment of the present invention.

[0025] Figure 3 It is a schematic diagram of a partial area cross-section of the drilling component provided by the embodiment of the present invention.

[0026] Figure 4 A schematic diagram of the structure of an internal barrel provided in an embodiment of the present invention.

[0027] Figure 5 A schematic diagram of the overall structure of the adjustment component provided in an embodiment of the present invention.

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure of area A in the middle.

[0029] In the figure: 10, drilling parts; 11, equipment frame; 12, support frame; 13, support seat; 14, adjustment assembly; 15, injection assembly; 16, extension assembly; 17, circulation pipeline; 18, drilling assembly; 19, slurry delivery end; 31, inner support frame; 32, inner support base plate; 33, soil planing layer; 34, inner barrel; 36, inner throwing trough; 37, strengthening support rod; 41, slurry delivery frame; 42, installation frame; 43, liquid end; 44, liquid pass; 45, liquid delivery pipeline ; 46. Flow meter; 47. Electric control valve; 48. Flow opening and closing end; 49. Drain pipeline; 51. Drill barrel; 52. Outer hoop; 53. Rock breaking cone; 54. Threaded teeth; 55. Drill teeth; 56. Support sleeve; 61. Drive frame; 62. Internal thread groove; 63. External fixed sleeve; 64. Transmission section; 71. Fixed base; 72. Loading base; 73. Buffer connector; 74. Secondary connector notch; 75. Combination block; 76. Primary connector notch; 77. Elastic pad. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] In one embodiment;

[0034] See also Figure 1, a water circulation type rock layer drilling device is provided, including an equipment frame 11, a support frame 12 erected on the equipment frame 11, and a support seat 13 installed on the support frame 12. A drilling component 10 is arranged on the support seat 13;

[0035] The drilling component 10 includes an adjustment component 14 installed on the support seat 13, an extension component 16 arranged on the adjustment component 14, and a drilling component 18 installed on the extension component 16;

[0036] The drilling component 10 is also externally connected with a perfusion component 15. A liquid circulation end of the perfusion component 15 is provided with a circulation pipeline 17. The extension component 16 is of an inner hollow structure. The circulation pipeline 17 extends into the drilling component 18 along the inner hollow area of the extension component 16 and is provided with a slurry delivery end 19.

[0037] In this application, the designed equipment frame 11 is an integral equipment structure. The equipment frame 11 can be externally installed on related auxiliary mechanical equipment such as walking traction vehicles and hoists, and the drilling component 10 is pushed by a pneumatic device to perform rock layer drilling and crushing operations. The support seat 13 is an installation component of the drilling component 10 to improve the stability of the operation of the drilling component 10; the drilling component 10 is an operation component for rock layer drilling; the adjustment component 14 is a power input mechanism to drive the extension component 16 to move, so as to push towards the inner wall of the rock layer; the drilling component 18 is used to break the rock layer soil. The slurry delivery end 19 contacts the internal space of the rock layer as the drilling component 18 penetrates. The circulation pipeline 17 is communicated with the slurry delivery end 19, so as to achieve slurry circulation treatment of pumping and grouting the soil in the internal space of the rock layer without interfering with the operation of the drilling component 18.

[0038] In one embodiment;

[0039] For the operation mode of the drilling component 18, the following structure is designed in this embodiment;

[0040] Please refer to Figure 2 , the drilling component 18 includes a percussion drill barrel 51 connected to the extension component 16. The percussion drill barrel 51 is of a cylindrical barrel structure. A plurality of percussion cutter teeth 55 are arranged obliquely at the front section of the drill barrel of the percussion drill barrel 51. Threaded tooth patterns 54 are arranged in a spiral manner on the outer wall of the drill barrel of the percussion drill barrel 51. An outer hoop 52 is installed at the rear section of the drill barrel of the percussion drill barrel 51. A plurality of rock-breaking cones 53 are arranged at equal intervals on the outer surface of the outer hoop 52.

[0041] The drill barrel 51 is the operating body of the drilling assembly 18. The front section of the drill barrel of the drill barrel 51 is obliquely provided with a plurality of drill teeth 55, which are used to break the soil layer and push the drill barrel 51 into the inner cavity of the rock layer. The outer wall of the drill barrel of the drill barrel 51 is provided with spirally arranged threaded teeth 54, which is conducive to forming a tangential contact surface with the rock layer soil when breaking; the rear section of the drill barrel of the drill barrel 51 is provided with a plurality of rock-breaking cones 53, which cooperate with the rotation of the drill barrel 51 to perform a steering scraping surface, thereby forming a relatively regular drilling trajectory of the cylindrical cavity, which is conducive to the extension of the extension assembly 16.

[0042] In one embodiment;

[0043] In order to prevent the advancement of the drilling barrel 51 from damaging the pipeline used for circulating grouting, the present embodiment is designed with the following structure:

[0044] See also Figure 3 The inner cavity of the rear section of the drill barrel of the punching and drilling machine barrel 51 is provided with an inner support frame 31, and an inner support base plate 32 is provided on the inner support frame 31. The center line of the inner support base plate 32 is provided with an inner barrel 34 for penetrating a circulation pipeline 17, and the outer edge of the inner support base plate 32 is provided with a planing layer 33, and the planing layer 33 is arranged along the inner wall of the drill barrel of the punching and drilling machine barrel 51. An inner throwing groove 36 is spirally opened on the planing layer 33, and a plurality of reinforcing support rods 37 are further arranged between the inner barrel 34 and the planing layer 33.

[0045] The inner barrel 34 is used to load the circulation pipeline 17, so as to avoid damage to the circulation pipeline 17 in the inner cavity of the inner barrel 34. A soil-cutting layer 33 is arranged at the inner barrel wall position of the punching and drilling barrel 51, and an inner throwing groove 36 is spirally opened on the soil-cutting layer 33. The inner throwing groove 36 is designed as a concave spiral and a cutting edge is arranged toward the drilling end of the punching and drilling barrel 51. The inner throwing groove 36 forms a spiral impact on the rock formation and throws the soil layer outward in a spiral manner to avoid the soil and stone particles in the rock formation from colliding with the inner barrel 34. A number of reinforcing support rods 37 are arranged between the inner barrel 34 and the soil-cutting layer 33, so as to form a supporting structure between the inner barrel 34 and the soil-cutting layer 33 to further improve stability.

[0046] In one embodiment;

[0047] For the slurry circulation and transportation structure, this embodiment is specifically implemented as follows:

[0048] See also Figure 4, a slurry conveying frame 41 is arranged inside the housing of the internal machine barrel 34. The slurry conveying frame 41 includes a mounting frame 42 installed in the internal machine barrel 34, a liquid passing end 43 arranged at the front end of the mounting frame 42, and an infusion pipeline 45 and a drainage pipeline 49 penetrating through the inner cavity of the slurry conveying frame 41. The internal machine barrel 34 is internally provided with an infusion pipeline 45 and a drainage pipeline 49 for slurry circulation, and its liquid passing end 43 is connected to the slurry conveying end 19 to achieve the effect of circulating and conveying slurry.

[0049] A liquid passing device 44 is arranged at the liquid passing end 43. The liquid passing device 44 is externally connected to the slurry conveying end 19 and internally connected to the infusion pipeline 45 and the drainage pipeline 49. The infusion pipeline 45 and the drainage pipeline 49 penetrate through the extension assembly 16 and the drilling assembly 18, and their terminals are connected to the perfusion assembly 15.

[0050] Preferably, electric control valves 47 are also arranged on both the infusion pipeline 45 and the drainage pipeline 49. The electric control valves 47 are installed on the infusion pipeline 45 and the drainage pipeline 49 and are provided with flow opening and closing ends 48. A flow meter 46 is also arranged on the electric control valve 47. The electric control valve 47 is used to control the slurry conveying of the infusion pipeline 45 and the drainage pipeline 49. A battery is arranged inside the slurry conveying frame 41 to control the opening and closing of the electric control valve 47. Additionally, a flow meter 46 is designed to count the output flow and input flow during slurry circulation.

[0051] In one case of this embodiment,

[0052] When drilling soil, a support pad sleeve 56 is also provided between the periphery of the impact drill barrel 51 and the rock stratum soil. The support pad sleeve 56 adopts an annular pad plate structure and is installed on the rock stratum soil through fixing bolts, so as to prevent the problem of drill hole collapse while the whole drilling mechanism 10 extends in.

[0053] In one embodiment;

[0054] Please refer to Figure 5 , the adjustment assembly 14 includes a driving machine frame 61 installed on the support seat 13. A transmission section 64 is arranged on the extension assembly 16. The transmission section 64 is a hollow internal threaded column structure. An internal threaded groove 62 is arranged in the inner frame of the driving machine frame 61. The transmission section 64 is arranged in the internal threaded groove 62. An external fixing sleeve 63 is arranged on the upper edge of the transmission section 64 to protect the infusion pipeline 45 and the drainage pipeline 49 and connect them to the perfusion assembly 15.

[0055] For the driving method of this embodiment, in this embodiment, the driving machine frame 61 is designed as the driving workpiece. By rotating the driving machine frame 61, the transmission section 64 of the extension assembly 16 is driven through screw transmission, thereby driving the extension assembly 16 to move, and then pushing the drilling machine barrel 51 to move a certain distance towards the inner cavity of the drilling hole, so as to extend into the slurry injection area inside the soil layer.

[0056] For the driving method of the driving machine frame 61, in this embodiment, a driving motor can be arranged on the side edge of the driving machine frame 61, a driving gear is installed at the driving end of the driving motor, and a corresponding toothed ring is arranged in the outer frame area of the driving machine frame 61, and the movement of the driving machine frame 61 is driven through tooth engagement transmission.

[0057] For the installation of the support base 13, it is used to ensure the operation stability of the drilling device.

[0058] Please refer to Figure 5 and Figure 6 , the support base 13 includes a fixed base 71 fixedly installed with the support frame 12, and a loading base 72 integrally structured with the driving machine frame 61, and a buffer connection member 73 is arranged between the fixed base 71 and the loading base 72.

[0059] The buffer connection member 73 is installed on the fixed base 71. A first-level connection slot 76 is opened on the buffer connection member 73. A second-level connection slot 74 is also opened at the installation position of the fixed base 71 and the buffer connection member 73. An "I"-shaped interval is formed between the first-level connection slot 76 and the second-level connection slot 74. A combined block 75 is arranged on the loading base 72. The combined block 75 fits with the "I"-shaped interval and a number of elastic cushion blocks 77 are arranged at the gap of the "I"-shaped interval.

[0060] The fixed base 71 is fixedly installed with the support frame 12, the loading base 72 is integrally structured with the driving machine frame 61, and the fixed base 71 and the loading base 72 form an "I"-shaped interval with each other, achieving the effect of combined wedge installation, avoiding the problem that the driving machine frame 61 breaks away during the drilling operation. A number of elastic cushion blocks 77 are arranged at the gap of the "I"-shaped interval, playing an elastic buffering effect.

[0061] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0062] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water circulation type rock stratum drilling device, comprising an equipment frame, a support frame erected on the equipment frame, and a support seat installed on the support frame, characterized in that, The support seat is provided with a drilling mechanism; The drilling machine comprises an adjustment component mounted on a support seat, an extension component arranged on the adjustment component, and a drilling component mounted on the extension component; The drilling machine is also externally connected to a perfusion assembly, a circulation pipeline is provided at the liquid circulation end of the perfusion assembly, the extension assembly is an inner hollow structure, the circulation pipeline extends into the drilling assembly along the inner hollow area of the extension assembly and is provided with a slurry delivery end; The drilling assembly comprises a percussion drill barrel connected to the extension assembly, the percussion drill barrel is a cylindrical structure, a front section of the drill barrel of the percussion drill barrel is provided with a plurality of percussion drill teeth in an inclined direction, a spirally arranged threaded tooth pattern is provided on the outer wall of the drill barrel of the percussion drill barrel, an outer hoop is installed at the rear section of the drill barrel of the percussion drill barrel, and a plurality of rock-breaking cones are arranged equidistantly on the sleeve surface of the outer hoop; The inner cavity of the rear section of the drill barrel of the punching and drilling machine barrel is provided with an inner support frame, the inner support frame is provided with an inner support base plate, the center line of the inner support base plate is provided with an inner barrel for penetrating a circulation pipeline, the outer edge of the inner support base plate is provided with a soil-cutting layer, the soil-cutting layer is arranged along the inner wall of the drill barrel of the punching and drilling machine barrel, an inner throwing groove is spirally opened on the soil-cutting layer, and a plurality of reinforcing support rods are arranged between the inner barrel and the soil-cutting layer; A slurry delivery frame is arranged inside the shell of the inner barrel, and the slurry delivery frame comprises a mounting frame installed in the inner barrel, a liquid passing end arranged at the front end of the mounting frame, and an infusion pipeline and a drainage pipeline running through the inner cavity of the slurry delivery frame, and a liquid passer is arranged at the liquid passing end, and the liquid passer is externally connected to the slurry delivery end and internally connected to the infusion pipeline and the drainage pipeline, and the infusion pipeline and the drainage pipeline run through the extension component and the drilling component, and their terminals are connected to the perfusion component; The infusion pipeline and the drainage pipeline are both provided with electric control valves, which are installed on the infusion pipeline and the drainage pipeline and are provided with flow opening and closing ends. The electric control valves are also provided with flow meters.

2. The water circulation type rock stratum drilling device according to claim 1, characterized in that, The adjustment component includes a drive frame installed on a support seat, a transmission section is arranged on the extension component, the transmission section is a hollow threaded column structure, an inner frame of the drive frame is provided with an internal thread groove, and the transmission section is arranged in the internal thread groove.

3. The water circulation type rock stratum drilling device according to claim 2, characterized in that, The support seat comprises a fixed base fixedly mounted on the support frame, and a loading base integrated with the drive frame, and a buffer connection piece is arranged between the fixed base and the loading base.

4. The water circulation type rock stratum drilling device according to claim 3, characterized in that, The buffer connector is installed on a fixed base, and a primary connector is provided on the buffer connector. A secondary connector is also provided at the fixed base and the buffer connector installation location, and an "I"-shaped interval is formed between the primary connector and the secondary connector. A combination block is provided on the loading base, and the combination block fits in the "I"-shaped interval and a number of elastic pads are provided in the gap between the combination block and the "I"-shaped interval.

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