Integral directional drilling machine with convertible drilling direction based on triangular angle adjustment and method

Abstract

The invention provides an integral directional drilling machine with a convertible drilling direction based on triangular angle adjustment and a method. A vehicle body comprises a left vehicle body and a right vehicle body which are detachably and transversely spliced and mounted; a drilling device is installed on the right side vehicle body and comprises a triangular angle adjusting mechanism. The triangular angle adjusting mechanism comprises a main machine platform, and a lower platform, a swing rod and a swing stand column are hinged to the main machine platform. When the lower platform is in the horizontal state, the swing rod is also in the horizontal state; the front end of the swing rod is provided with a swing stroke groove capable of sliding along the bottom of the lower platform. Therefore, the elevation angle of the machine body in the drilling device is adjusted until the machine body is in a vertical state; the swing stand column is sleeved with a locking cross beam capable of sliding along the swing stand column, and the locking cross beam is hinged to the front end of the lower platform. The position of the drilling device in the drilling machine can be converted, when a drill hole close to a roadway side is drilled in a construction drill site, large azimuth angle adjustment does not need to be conducted on the drill hole in the drilling process, and the length of an effective hole section after the drill hole is formed is remarkably increased.

Description

Technical Field

[0001] This invention belongs to the field of coal mine tunnel drilling technology, and relates to directional drilling rigs, specifically to an integral directional drilling rig and method with convertible drilling direction based on triangular angle adjustment. Background Technology

[0002] The "hole-instead-of-roadway" gas extraction technology involves drilling high-level directional boreholes in the roof above the working face within a dedicated drilling site in the return airway, replacing the need for a high-level extraction roadway. This technology has become a highly effective method for controlling excessive gas levels in the upper corner of the working face in high-gas mines. High-level directional roof drilling utilizes measurement-while-drilling (MSD) technology to extend the borehole along a specific stratum at a certain height above the coal seam. After mining, the upper strata of the goaf naturally collapse, creating mining-induced fractures that connect with the borehole. The borehole is then used as a negative pressure gas extraction channel for goaf gas control. This technology achieves a triple optimization of safety, efficiency, and cost. High-level directional roof drilling is conducted within a specific drilling site in the return airway, with 4-6 large-diameter boreholes at different strata parallel to the return airway, positioned 15-10m above it. The drilling site layout is as follows... Figure 1 As shown.

[0003] If the drilling direction is taken as the front, the drilling device is usually set on the right side of the tracked vehicle platform, while the control panel, motor pump unit, oil tank, electrical cabinet, and other power units are set on the left side of the tracked vehicle platform. For example, the drilling rigs involved in six patents, namely "Crawler-type Fully Hydraulic Tunnel Drilling Rig (CN101122232)," "Crawler-type Fully Hydraulic Directional Drilling Rig for Narrow Roadways (CN101089150A)," "Multi-purpose Integrated Tracked Fully Hydraulic Directional Drilling Rig for Coal Mines (CN101032025A)," "Integrated Automatic Directional Drilling Rig Applicable to Underground Directional Construction and Its Control Method (CN119108596A)," "A High-Efficiency Directional Drilling Rig (201910171355.X)," and "A Small-Angle Precision Directional Drilling Rig with Large Diameter and Long Drill Rod (202211351042.4)," all have this structural form. Because the drilling rig body has a certain width, and the drilling equipment that performs the drilling is usually located on the right side of the body, for example, during construction... Figure 2 When drilling boreholes like #5 and #6, which are located close to the left side of the roadway, the drilling rig must maintain a certain distance from the coal wall to be drilled, and the rig must be positioned at a certain angle to the coal wall to be drilled. This ensures that the borehole location reaches the designed drilling position. After drilling, utilizing the controllable drilling trajectory of the directional drilling rig, the borehole orientation is gradually adjusted to be parallel to the return airway as the borehole extends. Although this method can achieve a final borehole trajectory parallel to the return airway, the long curved section of the borehole results in a limited effective borehole length and low borehole utilization. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an integrated directional drilling rig and method with convertible drilling direction based on triangular angle adjustment, thereby solving the technical problem in the prior art where the length of the effective hole section needs to be further increased due to the difficulty in achieving drilling direction conversion.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] An integrated directional drilling rig with convertible drilling direction based on triangular angle adjustment is disclosed. The integrated directional drilling rig includes a vehicle body and a drilling device. The vehicle body includes a left vehicle body and a right vehicle body that can be detachably and laterally inserted and installed. The left vehicle body includes a left vehicle body platform, and the right vehicle body includes a right vehicle body platform. At least one opening and closing hydraulic cylinder is installed between the left vehicle body platform and the right vehicle body platform and arranged laterally.

[0007] A drilling device is installed on the right vehicle platform. The drilling device includes a triangular angle adjustment mechanism, which includes a main platform arranged longitudinally. At least one rear support is installed at the rear longitudinal part of the main platform, and at least one swing rod support is installed at the middle longitudinal part of the main platform. A lower platform arranged longitudinally is hinged to the rear support. A swing cylinder is installed on the swing rod support. The rotating shaft of the swing cylinder is connected to the rear end of the swing rod arranged longitudinally. The swing cylinder drives the rear end of the swing rod to rotate, causing the swing rod to swing around the central axis of the swing cylinder. The lower platform is in a horizontal state, and the swing rod is also arranged in a horizontal state.

[0008] The lower platform is provided with a pair of longitudinally arranged swing stroke plates, and the swing stroke plates are provided with swing stroke grooves arranged longitudinally. The front end of the swing rod is provided with a transversely arranged slide rod, which is perpendicular to the swing rod. The two ends of the slide rod are respectively embedded in a pair of swing stroke grooves and can slide along the swing stroke grooves. The swing of the swing rod drives the lower platform to rotate around the hinge point with the rear support, thereby realizing the adjustment of the elevation angle of the drilling device until the machine body is in a vertical state.

[0009] At least one swing column support is installed at the longitudinal front of the host platform; the lower end of a swing column is hinged to each swing column support, and the same locking beam that can slide along the swing column is fitted on the swing column. The locking beam is hinged to the front end of the lower platform.

[0010] The present invention also has the following technical features.

[0011] The drilling device also includes a first slewing bearing, and the bottom of the main platform is connected to the right vehicle body platform through the first slewing bearing.

[0012] The drilling device also includes a machine body, on which a power head is slidably mounted, and a clamp is fixedly mounted on the upper front end of the machine body; the lower part of the machine body is installed in a slot in the intermediate platform, and a horizontal thrust cylinder is also installed between the machine body and the intermediate platform; the intermediate platform is connected to the lower platform through a second slewing bearing.

[0013] This invention also protects a drilling direction conversion method for an integral directional drilling rig based on triangular angle adjustment, wherein the method employs an integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described above.

[0014] Compared with the prior art, the present invention has the following technical effects.

[0015] (I) The position of the drilling device of the present invention in the drilling rig can be changed. When drilling near the sidewall in the construction drilling site, it is not necessary to make large azimuth angle adjustments to the borehole during the drilling process, and the length of the effective hole section after the borehole is completed is significantly increased.

[0016] (II) In this invention, the drilling rig body is set as a left body and a right body. Under normal working conditions, the two bodies are integrated into one unit, and its walking and drilling state is similar to that of a conventional crawler drilling rig. When it is necessary to construct a high-level directional borehole close to the roadway wall, the drilling device in the right body can be adjusted. After adjustment, the drilling rig can be turned around to carry out borehole construction close to the roadway wall. The effective borehole section of the completed high-level directional borehole is longer.

[0017] (III) In this invention, when the left and right vehicle bodies are in a combined state, the motor pump unit, electrical cabinet, oil tank, and control panel have significant spatial resistance, which prevents the machine body from being switched. Under the push of the opening and closing hydraulic cylinder, the left and right vehicle bodies are in a separated state, the spatial resistance of the equipment is eliminated, and the machine body can be switched.

[0018] (IV) During the entire process of the drilling device in the right side of the vehicle body of the present invention being adjusted, the second upper and lower stabilizing columns in the right side of the vehicle body are pressed against the roadway floor and roof, resulting in good stability and safety.

[0019] (V) The triangular angle adjustment mechanism of the present invention solves the problem of easy breakage of the fixed column of the drilling rig, and the positive and negative tilt angles can be switched quickly and with higher reliability.

[0020] (VI) The triangular angle adjustment mechanism of the present invention has a stable structure. The lower platform, the swing column and the main platform form a triangular structure, which has strong overall stability and can cover the full tilt angle range from -90° to +90°.

[0021] (VI) The number of upper and lower stabilizing columns of the drilling rig of the present invention has been increased from four to six, making the stabilizing performance more reliable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the location of the high-level directional drilling site on the top plate.

[0023] Figure 2 This is a schematic diagram of the high-level directional drilling trajectory in the top plate.

[0024] Figure 3 This is a structural schematic diagram of the preliminary design scheme for the drilling rig's angle adjustment mechanism.

[0025] Figure 4 This is a schematic diagram of the overall structure of an integrated directional drilling rig.

[0026] Figure 5 This is a side view of the integral directional drilling rig.

[0027] Figure 6 This is a schematic diagram of the overall structure of the vehicle body on the left.

[0028] Figure 7 This is a schematic diagram of the overall structure of the right side of the vehicle.

[0029] Figure 8 This is a front view schematic diagram of the drilling device.

[0030] Figure 9 This is a side view of the drilling device.

[0031] Figure 10 A schematic diagram of the structure of the triangular angle adjustment mechanism that allows the drilling device to be in a 60° elevation angle state.

[0032] Figure 11 A schematic diagram of the structure of the triangular angle adjustment mechanism that allows the drilling device to be in a 90° elevation angle state.

[0033] Figure 12 This is a schematic diagram of the left vehicle body platform.

[0034] Figure 13 This is a structural schematic diagram of the right-side vehicle platform.

[0035] Figure 14 A schematic diagram of the state when a directional drilling rig changes its drilling direction.

[0036] Figure 15 for Figure 14 Axonometric drawing.

[0037] Figure 16 This is a schematic diagram of the trajectory of a high-level directional drilling hole in the roof slab constructed using the directional drilling rig of this invention.

[0038] The meanings of the labels in the diagram are as follows: 1-Left side of the vehicle body, 2-Right side of the vehicle body, 3-Opening and closing hydraulic cylinder, 4-Drilling device, 5-Motor pump set, 6-Electrical cabinet, 7-Oil tank, 8-Control panel, 9-Integral directional drilling rig, 10-Intake airway, 11-Coal seam to be mined, 12-Return airway, 13-Coal mining face, 14-Drilling site one, 15-Drilling site two, 16-Upper corner; 17-Fixed column, 18-Angle adjusting hydraulic cylinder, 19-Hinged column, 20-Front crossbeam, 21-Rear crossbeam.

[0039] 101-Left vehicle platform, 102-U-shaped transverse pin, 103-Rectangular insertion hole, 104-Tenon, 105-First upper and lower stabilizing column, 106-Left upright plate, 107-Left track.

[0040] 201-Right vehicle platform, 202-U-shaped slot, 203-Rectangular transverse pin, 204-Mortise, 205-Second upper and lower stabilizing columns, 206-Right upright plate, 207-Right track, 208-Counterhole, 209-Pin hole.

[0041] 401-Triangular adjustment mechanism, 402-First slewing bearing, 403-Machine body, 404-Power head, 405-Clamping device, 406-Intermediate platform, 407-Push cylinder, 408-Second slewing bearing, 409-Positioning pin.

[0042] 40101-Main platform, 40102-Rear support, 40103-Swing rod support, 40104-Lower platform, 40105-Swing rod, 40106-Swing stroke plate, 40107-Swing stroke groove, 40108-Slide rod, 40109-Swing column support, 40110-Swing column, 40111-Locking crossbeam, 40112-Swing cylinder.

[0043] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, all devices, mechanisms and components in this invention are based on devices, mechanisms and components known in the prior art.

[0045] One early design scheme for the drilling rig's angle adjustment mechanism was to adopt a quadrilateral structure consisting of a fixed column, a hinged column, a machine body, and a base. Figure 3As shown. The hinged column is connected to the machine body via a front crossbeam, and both can rotate along the axis of the front crossbeam. The hinged column is connected to the base via a support, and both can rotate along the axis of the support pin. The fixed column is connected to the machine body via a rear crossbeam, and both can rotate along the axis of the rear crossbeam. The fixed column and the base are fixedly connected by bolts. The front crossbeam can move up and down along the axis of the hinged column, and similarly, the rear crossbeam can move up and down along the axis of the fixed column. Hydraulic cylinder lugs are respectively installed at the lower middle part of the machine body and the upper middle part of the base, and the angle-adjusting cylinder is connected to the two cylinder lugs. The elevation angle of the drilling rig body is adjusted by the extension and retraction of the angle-adjusting cylinder and the position of the front and rear crossbeams on the column. Because the quadrilateral structure formed by the fixed column, hinged column, machine body, and base has many hinged connections, when the power head clamps the drill rod for drilling, the reaction force of the drill rod to the power head is ultimately transmitted to the connection between the fixed column and the base. As the drilling process continues, the joint is subjected to alternating forces for a long time, making it prone to fracture.

[0046] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0047] Example 1:

[0048] This embodiment provides an integrated directional drilling rig with convertible drilling direction based on triangular angle adjustment. The integrated directional drilling rig includes a vehicle body and a drilling device 4, such as... Figure 4 and Figure 5 As shown, the vehicle body includes a left vehicle body 1 and a right vehicle body 2 that are detachably and laterally interlocked and mounted, as... Figure 6 and Figure 7 As shown, the left vehicle body 1 includes a left vehicle body platform 101, and the right vehicle body 2 includes a right vehicle body platform 201; at least one opening and closing hydraulic cylinder 3 is installed between the left vehicle body platform 101 and the right vehicle body platform 201, arranged laterally.

[0049] like Figure 8 and Figure 9 As shown, a drilling device 4 is installed on the right vehicle body platform 201. The drilling device 4 includes a triangular angle adjustment mechanism 401.

[0050] like Figure 10 and Figure 11As shown, the triangular angle adjustment mechanism 401 includes a main platform 40101 arranged longitudinally. At least one rear support 40102 is mounted on the rear longitudinal part of the main platform 40101, and at least one swing arm support 40103 is mounted on the middle longitudinal part of the main platform 40101. A lower platform 40104 arranged longitudinally is hinged to the rear support 40102. A swing arm support 40103 is mounted with a swing cylinder 40112. The rotating shaft of the swing cylinder 40112 is connected to the rear end of a swing arm 40105 arranged longitudinally. The swing cylinder 40112 drives the rear end of the swing arm 40105 to rotate, causing the swing arm 40105 to swing around the central axis of the swing cylinder 40112. Figure 8 As shown, the lower platform 40104 is in a horizontal state, and the swing arm 40105 is also arranged in a horizontal state.

[0051] like Figure 10 and Figure 11 As shown, the lower platform 40104 is provided with a pair of longitudinally arranged swing stroke plates 40106, and the swing stroke plates 40106 are provided with swing stroke grooves 40107 arranged longitudinally. The front end of the swing rod 40105 is provided with a transversely arranged slide rod 40108, which is perpendicular to the swing rod 40105. The two ends of the slide rod 40108 are respectively embedded in the pair of swing stroke grooves 40107 and can slide along the swing stroke grooves 40107. The swing of the swing rod 40105 drives the lower platform 40104 to rotate around the hinge point with the rear support 40102, thereby realizing the elevation angle adjustment of the body 403 in the drilling device 4 until the body 403 is in a vertical state.

[0052] like Figure 10 and Figure 11 As shown, at least one swing column support 40109 is installed on the longitudinal front of the host platform 40101; the lower end of a swing column 40110 is hinged to each swing column support 40109, and the same locking beam 40111 that can slide along the swing column 40110 is fitted on the swing column 40110. The locking beam 40111 is hinged to the front end of the lower platform 40104.

[0053] In this embodiment, as Figure 10 and Figure 11 As shown, the rear support 40102 is fixedly connected to the upper surface of the main platform 40101 by bolts.

[0054] In this embodiment, as Figure 8 As shown, the swing cylinder 40112 contacts the lower surface of the lower platform 40104, serving to assist in supporting the lower platform 40104.

[0055] In this embodiment, as Figure 10 and Figure 11 As shown, the elevation angle adjustment process of fuselage 403 is from 0° to 90°. When fuselage 403 rotates 180° at the position shown in the figure, this angle adjustment mechanism can be used to adjust the angle of fuselage 403 from 0° to -90°.

[0056] In this embodiment, as Figure 10 and Figure 11 As shown, after the tilt angle of the body 403 is adjusted to the set angle, the relative positions of the locking beam 40111 and the swing column 40110 are locked by bolts. The lower platform 40104, the swing column 40110 and the main platform 40101 form a triangular stable structure with strong overall stability.

[0057] As a preferred embodiment of this invention, such as Figure 8 As shown, the drilling device 4 also includes a first slewing bearing 402, and the bottom of the main platform 40101 is connected to the right vehicle platform 201 through the first slewing bearing 402.

[0058] In this embodiment, as Figure 8 As shown, the first slewing bearing 402 is used for the drilling device 4 to rotate 180° on the right vehicle platform 201, so as to realize the relative position of the left and right vehicle bodies.

[0059] As a preferred embodiment of this invention, such as Figure 8 As shown, the drilling device 4 also includes a body 403, on which a power head 404 is slidably mounted, and a clamp 405 is fixedly mounted on the upper front end of the body 403; the lower part of the body 403 is installed in a slot in the intermediate platform 406, and a horizontal thrust cylinder 407 is also installed between the body 403 and the intermediate platform 406; the intermediate platform 406 is connected to the lower platform 40104 through a second slewing bearing 408.

[0060] In this embodiment, both the power head and the clamp are power heads and clamps known in the art. The function of the drilling device 4 is to drive the drill rod, drill bit, and other drilling tools to perform rotation, feeding, and other actions to complete the drilling operation.

[0061] In this embodiment, as Figure 8 As shown, under the action of the horizontal thrust cylinder 407, the machine body 403 can move forward a certain distance.

[0062] In this embodiment, the second slewing bearing 408 is used to adjust the drilling direction of the power head 404, so as to... Figure 8The position shown is the initial position, which allows for 180° drilling direction adjustment. As the elevation angle of the lower platform 40104 changes, the second slewing bearing 408 is used to switch between the elevation and depression states of the machine body. Bolt connection holes are provided at both ends of the intermediate platform 406 and the lower platform 40104. After the direction of the machine body 403 is adjusted through the second slewing bearing 408, the two are connected into a whole by bolts.

[0063] In this embodiment, as Figure 10 As shown, when adjusting the inclination angle of the drilling device 4, an extension rod needs to be added to the end of the swing column 40110 if necessary; such as Figure 10 As shown, the drilling device 4 is in a 60° elevation angle state. At this time, an extension rod is added to the end of the swing column 40110. In this state, if the intermediate platform 406 rotates 180°, a 60° depression angle state can be achieved.

[0064] In this embodiment, as Figure 11 As shown, the drilling device 4 is in a 90° elevation angle state. At this time, two extension rods are added to the end of the swing column 40110. In this state, if the intermediate platform 406 rotates 180°, a 90° depression angle state can be achieved.

[0065] As a preferred embodiment of this invention, such as Figure 8 As shown, a positioning pin 409 is also provided between the main platform 40101 and the right vehicle body platform 201. The positioning pin 409 is used to fit the main platform 40101 and the right vehicle body platform 201 together to achieve the positioning of the main platform 40101.

[0066] In this embodiment, a countersunk hole 208 for installing the first slewing bearing 402 is provided at the center of the upper surface of the right vehicle body platform 201, and four cylindrical pin holes 209 for inserting positioning pins 409 are also provided.

[0067] As a preferred embodiment of this invention, such as Figure 12 As shown, a U-shaped horizontal pin 102 and a rectangular socket 103 are respectively provided at the front and rear ends of the right side wall of the left vehicle platform 101. The U-shaped horizontal pin 102 extends to the right along the horizontal direction, and the rectangular socket 103 is embedded in the left vehicle platform 101 along the horizontal direction to the left. The U-shaped horizontal pin 102 surrounds the rectangular socket 103.

[0068] like Figure 13 As shown, the front and rear ends of the left side wall of the right vehicle platform 201 are respectively provided with a U-shaped slot 202 and a rectangular horizontal pin 203. The U-shaped slot 202 is embedded in the right vehicle platform 201 along the horizontal direction to the right, and the rectangular horizontal pin 203 extends to the left along the horizontal direction. The U-shaped slot 202 is wrapped around the rectangular horizontal pin 203.

[0069] like Figure 12 and Figure 13 As shown, the U-shaped horizontal pin 102 is inserted into the U-shaped slot 202, and the rectangular horizontal pin 203 can be inserted into the U-shaped horizontal pin 102 and inserted into the rectangular socket 103, so as to realize the detachable horizontal insertion and installation between the left vehicle body 1 and the right vehicle body 2.

[0070] In this embodiment, as Figure 12 and Figure 13 As shown, when the left vehicle body 1 and the right vehicle body 2 are separated, the rectangular transverse pin 203 is engaged in the U-shaped transverse pin 102. When the two vehicle bodies are joined, the rectangular transverse pin 203 is engaged in the rectangular insertion hole 103. After the left vehicle body 1 and the right vehicle body 2 are joined, the rightmost end of the U-shaped transverse pin 102 is flush with the right end face of the right vehicle body 2; the leftmost end of the rectangular transverse pin 203 is flush with the left end face of the left vehicle body 1.

[0071] In this embodiment, as Figure 12 As shown, the first upper and lower stabilizing column 105 consists of two hydraulic cylinders, an upper one and a lower one. The upper cylinder rod extends upward to press against the tunnel roof. A top-receiving plate is provided at the end of the upper cylinder to increase the contact area with the tunnel roof. The lower cylinder extends downward and is equipped with casters at the end of the lower cylinder. The first upper and lower stabilizing column 105 is installed at the left front and left rear of the left side of the vehicle body 1. It is connected to the side of the left vehicle body platform 101 through a vertically set rectangular flange. When the left and right sides of the vehicle body are separated, the lower cylinder of the first upper and lower stabilizing column 105 extends to the ground to assist in supporting the weight of the vehicle body and reduce the stress on the U-shaped transverse pin 102 and the rectangular transverse pin 203. When the drilling rig needs to be stabilized, the upper and lower cylinders of the first upper and lower stabilizing column 105 extend to press against the tunnel roof and floor.

[0072] In this embodiment, as Figure 13 As shown, the main structures of the first upper and lower stabilizing columns 105 and the second upper and lower stabilizing columns 205 are the same. The upper cylinder end of the second upper and lower stabilizing columns 205 is provided with a top receiving plate, and the lower cylinder end is also provided with a top receiving plate. The second upper and lower stabilizing columns 205 are used to tighten the tunnel floor and roof during drilling. The second upper and lower stabilizing columns 205 are connected to the front and rear sides of the right vehicle platform 201 through vertically arranged rectangular flanges.

[0073] In this embodiment, as Figure 12 and Figure 13As shown, both the first and second upper and lower stabilizing columns 105 and 205 are composed of two hydraulic cylinders, one lower and one upper. The lower hydraulic cylinder is used to tighten the tunnel floor and lift the track off the ground, while the upper hydraulic cylinder is used to tighten the tunnel roof. Under normal circumstances, the track does not contact the ground during drilling, reducing the damage to the track caused by the alternating force generated during drilling. The upper hydraulic cylinder extends to tighten the tunnel roof, thus stabilizing the drilling rig between the tunnel floor and roof.

[0074] In this embodiment, two mounting plates with bolt holes are provided on the same side of the left track 107, which are connected to the left upright plate 106 by bolts; a boss is provided at the lower end of the left upright plate 106. When connected to the left track 107, the boss is inserted between the two mounting plates of the left track 107, which reduces the stress on the cross section of the bolt and makes the connection more stable and reliable.

[0075] As a preferred embodiment of this invention, such as Figure 12 and Figure 13 As shown, at least one tenon 104 is provided on the right side wall of the left vehicle platform 101, and a mortise 204 corresponding to the tenon 104 is provided on the left side wall of the right vehicle platform 201. When the vehicle body is in the combined state, the tenon 104 can be inserted into the mortise 204.

[0076] As a preferred embodiment of this invention, such as Figure 6 As shown, the left vehicle platform 101 is equipped with a motor pump unit 5, an electrical cabinet 6, an oil tank 7, and a control panel 8. The motor pump unit 5, electrical cabinet 6, oil tank 7, and control panel 8 all utilize commonly known motor pump units, electrical cabinets, oil tanks, and control panels in the art. When the left vehicle body 1 and right vehicle body 2 are in a combined state, the motor pump unit 5, electrical cabinet 6, oil tank 7, and control panel 8 have significant spatial resistance, preventing the machine body from being switched. Driven by the opening / closing cylinder 3, the left vehicle body 1 and right vehicle body 2 are separated, eliminating the spatial resistance and allowing the machine body to be switched.

[0077] As one specific solution in this embodiment, such as Figure 6 As shown, a first vertical stabilizing column 105 is installed on the longitudinal front and rear sides of the left vehicle platform 101, a left vertical plate 106 is installed on the lower part of the left vehicle platform 101, and a left track 107 is installed on the left side of the left vertical plate 106.

[0078] As one specific solution in this embodiment, such as Figure 7 As shown, two second upper and lower stabilizing columns 205 are installed on the longitudinal front and rear sides of the right vehicle platform 201, and a right vertical plate 206 is installed on the lower part of the right vehicle platform 201. A right track 207 is installed on the right side of the right vertical plate 206.

[0079] As a preferred embodiment, there are two opening and closing cylinders 3. One opening and closing cylinder 3 is located at the lower part of the longitudinal front side of the vehicle body, and the other opening and closing cylinder 3 is located at the lower part of the longitudinal rear side of the vehicle body. The cylinder end of the opening and closing cylinder 3 is connected to the right vehicle body platform 201, and the cylinder rod end of the opening and closing cylinder 3 is connected to the left vehicle body platform 101. The opening and closing of the left vehicle body 1 and the right vehicle body 2 are controlled by the extension and retraction of the opening and closing cylinder 3.

[0080] Example 2: This embodiment presents a drilling direction conversion method for an integral directional drilling rig based on triangular angle adjustment. The method uses the integral directional drilling rig with convertible drilling direction based on triangular angle adjustment given in Embodiment 1.

[0081] In this embodiment, as Figure 2 As shown, when constructing high-level directional drilling of the roof in the return airway drilling site, when drilling several holes close to the sidewall of the return airway (e.g., holes 1 to 4), the width of the crawler drilling rig does not affect the opening position of the holes, and drilling proceeds normally; when the width of the drilling rig affects the opening position of the designed holes (e.g., holes 5 to 6), it is necessary to change the drilling direction of the drilling rig.

[0082] The method includes the following steps: Step 1: Move the integral directional drilling rig to the middle of the drilling site to ensure that the integral directional drilling rig does not interfere with the tunnel walls during the drilling direction change.

[0083] Step two: First, extend the lower stabilizing cylinder in the second upper and lower stabilizing column 205 in the right side vehicle body 2 to lift the left track 107 and right track 207 of the integral directional drilling rig off the ground. Then, extend the upper stabilizing cylinder in the second upper and lower stabilizing column 205 to press it tightly against the roof of the tunnel.

[0084] Step 3: Extend the lower stabilizer of the first upper and lower stabilizing column 105 in the left side vehicle body 1 until the caster wheel contacts the ground, so that the upper and lower stabilizing column can bear part of the weight of the left side vehicle body 1.

[0085] Step four: Control the opening and closing cylinder 3 to slowly extend, and the left vehicle body 1 gradually separates from the right vehicle body 2. When the U-shaped transverse pin 102 of the left vehicle body 1 completely disengages from the U-shaped slot 202 of the right vehicle body 2, the upper stabilizer of the first upper and lower stabilizing column 105 extends and presses against the tunnel roof.

[0086] Step 5: Pull out the four positioning pins 409 in the right side vehicle body 2, control the first slewing bearing 402 to drive the drilling device 4 to rotate 180°, and then insert the positioning pins 409 into the pin holes of the drilling device 4 and the right vehicle body platform 201.

[0087] If the separation distance between the left side vehicle 1 and the right side vehicle 2 does not meet the design requirements due to limited downhole space, and the rear of the drilling device 4 interferes with the left side vehicle 1 during rotation, the cylinder rod of the horizontal thrust cylinder 407 can be extended to move the machine body 403 forward a certain distance; after the rotation is completed, the machine body 403 is returned to its original position.

[0088] Step six: retract the upper cylinder of the first upper and lower stabilizing column 105, control the opening and closing cylinder 3 to retract, and the left vehicle body 1 and the right vehicle body 2 are merged; retract the upper cylinder of the second upper and lower stabilizing column 205, and retract the lower cylinders of the first upper and lower stabilizing column 105 and the second upper and lower stabilizing column 205, so that the left track 107 and the right track 207 are in contact with the ground.

[0089] Step 7: Control the drilling rig to turn around on the spot and drive it to the vicinity of the drilling site roadway, where drilling of borehole #5 or #6 can begin.

[0090] In this embodiment, as Figure 14 and Figure 15 As shown, the left vehicle body 1 and the right vehicle body 2 are in a separated state. The first slewing bearing 402 at the bottom of the drilling device 4 drives the entire drilling device to change direction. In the figure, the drilling device 4 is rotating to 90°.

[0091] In this embodiment, as Figure 16 As shown, the trajectories of boreholes #5 and #6 drilled using the interchangeable integral directional drilling rig of this invention are compared with... Figure 2 In comparison, it can be seen that the drilling trajectory does not have a large-scale arc-shaped trajectory caused by adjusting the drilling azimuth angle, and the effective hole section is longer.

Claims

1. An integral directional drilling rig with convertible drilling direction based on triangular angle adjustment, the integral directional drilling rig comprising a vehicle body and a drilling device (4), characterized in that, The vehicle body includes a detachable, transversely connected and mounted left vehicle body (1) and right vehicle body (2). The left vehicle body (1) includes a left vehicle body platform (101), and the right vehicle body (2) includes a right vehicle body platform (201). At least one opening and closing hydraulic cylinder (3) is installed between the left vehicle body platform (101) and the right vehicle body platform (201) along the transverse direction. A drilling device (4) is installed on the right vehicle body platform (201), and the drilling device (4) includes a triangular angle adjustment mechanism (401). The triangular adjustment mechanism (401) includes a main platform (40101) arranged longitudinally, at least one rear support (40102) installed at the rear longitudinal part of the main platform (40101), and at least one swing rod support (40103) installed at the middle longitudinal part of the main platform (40101). A lower platform (40104) arranged longitudinally is hinged to the rear support (40102). A swing cylinder (40112) is installed on the swing rod support (40103). The rotating shaft of the swing cylinder (40112) is connected to the rear end of the swing rod (40105) arranged longitudinally. The swing cylinder (40112) drives the rear end of the swing rod (40105) to rotate, causing the swing rod (40105) to swing around the central axis of the swing cylinder (40112). The lower platform (40104) is in a horizontal state, and the swing rod (40105) is also arranged in a horizontal state. The lower platform (40104) is provided with a pair of longitudinally arranged swing stroke plates (40106) at its lower part, and the swing stroke plates (40106) are provided with swing stroke grooves (40107) arranged longitudinally. The front end of the swing rod (40105) is provided with a transversely arranged slide rod (40108), the slide rod (40108) is perpendicular to the swing rod (40105), and the two ends of the slide rod (40108) are respectively embedded in a pair of swing stroke grooves (40107) and can slide along the swing stroke grooves (40107). The swing of the swing rod (40105) drives the lower platform (40104) to rotate around the hinge point with the rear support (40102), thereby realizing the elevation angle adjustment of the body (403) in the drilling device (4) until the body (403) is in a vertical state. The main platform (40101) is equipped with at least one swing column support (40109) at its longitudinal front; each swing column support (40109) is hinged to the lower end of a swing column (40110), and the same locking beam (40111) that can slide along the swing column (40110) is fitted on the swing column (40110), and the locking beam (40111) is hinged to the front end of the lower platform (40104).

2. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 1, characterized in that, The drilling device (4) further includes a first slewing bearing (402), and the bottom of the main platform (40101) is connected to the right vehicle platform (201) through the first slewing bearing (402).

3. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 2, characterized in that, The drilling device (4) also includes a body (403), on which a power head (404) is slidably mounted, and a clamp (405) is fixedly mounted on the upper front end of the body (403); the lower part of the body (403) is installed in the slot of the intermediate platform (406), and a flat-push cylinder (407) is also installed between the body (403) and the intermediate platform (406); the intermediate platform (406) is connected to the lower platform (40104) through a second slewing bearing (408).

4. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 2, characterized in that, A positioning pin (409) is also provided between the host platform (40101) and the right vehicle body platform (201).

5. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 1, characterized in that, The left vehicle platform (101) has a U-shaped horizontal pin (102) and a rectangular insertion hole (103) respectively provided at the front and rear ends of the right side wall. The U-shaped horizontal pin (102) extends to the right along the horizontal direction, and the rectangular insertion hole (103) is embedded in the left vehicle platform (101) along the horizontal direction. The U-shaped horizontal pin (102) surrounds the rectangular insertion hole (103). The front and rear ends of the left side wall of the right vehicle platform (201) are respectively provided with U-shaped slots (202) and rectangular transverse pins (203). The U-shaped slots (202) are embedded in the right vehicle platform (201) along the transverse right, and the rectangular transverse pins (203) extend to the left along the transverse left. The U-shaped slots (202) are wrapped around the rectangular transverse pins (203). The U-shaped horizontal pin (102) is inserted into the U-shaped slot (202) in a corresponding manner. The rectangular horizontal pin (203) can be inserted into the U-shaped horizontal pin (102) and is inserted into the rectangular socket (103) in a corresponding manner, so as to realize the detachable horizontal insertion and installation between the left vehicle body (1) and the right vehicle body (2).

6. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 5, characterized in that, The left vehicle platform (101) has at least one tenon (104) on its right side wall and the right vehicle platform (201) has a mortise (204) on its left side wall that corresponds to the tenon (104). When the vehicle body is in the combined state, the tenon (104) can be inserted into the mortise (204).

7. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 1, characterized in that, The left vehicle platform (101) is equipped with a motor pump unit (5), an electrical cabinet (6), an oil tank (7), and a control panel (8).

8. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 1, characterized in that, The left vehicle platform (101) has a first vertical and lower stabilizing column (105) installed on its longitudinal front and rear sides respectively. The left vehicle platform (101) has a left vertical plate (106) installed on its lower part and a left track (107) installed on the left side of the left vertical plate (106). Two second upper and lower stabilizing columns (205) are installed on the longitudinal front and rear sides of the right vehicle platform (201), and a right vertical plate (206) is installed on the lower part of the right vehicle platform (201). A right track (207) is installed on the right side of the right vertical plate (206).

9. The integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in claim 1, characterized in that, There are two opening and closing cylinders (3). One opening and closing cylinder (3) is located at the lower part of the longitudinal front side of the vehicle body, and the other opening and closing cylinder (3) is located at the lower part of the longitudinal rear side of the vehicle body. The cylinder end of the opening and closing cylinder (3) is connected to the right vehicle body platform (201), and the cylinder rod end of the opening and closing cylinder (3) is connected to the left vehicle body platform (101).

10. A method for changing the drilling direction of an integral directional drilling rig based on triangular angle adjustment, characterized in that, The method employs an integral directional drilling rig with convertible drilling direction based on triangular angle adjustment as described in any one of claims 1 to 9.

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