An in-situ leaching hole trailer type electric top drive drilling machine

Abstract

The present application relates to the technical field of trailer drilling machine, and provides a ground leaching hole trailer type electric top drive drilling machine, which comprises a trailer, a derrick, a driving assembly and a catwalk. The driving assembly is arranged on the derrick and is used to drive one end of a drill rod to move upward or downward. The catwalk comprises a track, a trolley, a linear driving element and a base. The trolley is movably arranged on the track and is used to support the other end of the drill rod. The linear driving element is hingedly connected between the base and the track and is used to drive the track to vertically swing. When the driving assembly drives one end of the drill rod to move upward, the track can vertically swing to drive the trolley to move to the side close to the derrick and drive the other end of the drill rod to move downward, so as to switch the drill rod to a vertical state in cooperation with the driving assembly. Through the improvement of the catwalk, the trolley can be moved by gravity when the drill rod is assembled or disassembled, and the labor consumption is reduced. The technical problem that a large amount of labor is consumed due to frequent manual pulling of the trolley when the drill rod is disassembled in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of trailer drilling rig, in particular to a ground leaching hole trailer electric top drive drilling rig. BACKGROUND

[0002] As a special drilling hole for conveying leaching solution to underground ore body and extracting leaching solution containing target metal in in-situ leaching mining, the ground leaching hole has strict requirements on the accuracy, efficiency and environmental protection of drilling, and the traditional drilling rig has limitations such as low mechanical transmission efficiency, insufficient automation, poor stability, high energy consumption and prominent emission problems, which is difficult to adapt to the requirements of in-situ leaching process, thus prompting the research and development of trailer electric top drive drilling rig - the equipment integrates top drive technology to improve drilling efficiency, electric drive to achieve energy saving and environmental protection, and trailer modular design to enhance mobility, effectively meeting the special requirements of ground leaching hole drilling and promoting the intelligent and green transformation of in-situ leaching mining industry.

[0003] In the prior art, catwalk is needed for drilling rig to assemble and disassemble drill rods, but the existing catwalk is a fixed connection steel structure, and the top surface of the catwalk is horizontal. When the catwalk trolley carries one end of the drill rod to move, manpower is needed to pull the trolley to assist in assembling and disassembling the drill rod. Taking disassembling the drill rod as an example, after the top drive with the top end of the drill rod is lifted to the position of the big clamp, the big clamp clamps the drill rod, the output end of the top drive rotates and separates from the drill rod, then one end of the sleeve ring is hung on the top drive, the other end is clamped on the top end of the drill rod, the top drive continues to move upward with the drill rod, when the bottom end of the drill rod reaches the position of the big clamp, the big clamp separates the drill rod from the other drill rods below, and clamps the drill rod below to prevent it from falling. At this time, only the disassembled drill rod is on the top drive, then the bottom end of the drill rod is dragged to lap on the catwalk trolley, as the top drive descends, the drill rod pushes the trolley to move away by relying on its own weight, and the included angle between the drill rod and the horizontal plane also gradually decreases. When the included angle reaches a certain degree, the drill rod can no longer rely on its own weight to push the trolley to continue moving, at this time, manual labor is needed to manually move the trolley until the drill rod coincides with the top surface of the catwalk, and the drill rod falls on the catwalk. Since there are many drill rods, frequent operation consumes a lot of manpower.

[0004] Therefore, it is necessary to improve the existing drilling rig structure to solve the above problems. SUMMARY

[0005] In order to overcome the above defects, the embodiments of the present application provide a ground leaching hole trailer electric top drive drilling rig, which solves the technical problem that in the prior art, frequent manual pulling of the trolley during assembly and disassembly of the drill rod of the drilling rig consumes a lot of manpower.

[0006] According to one aspect, at least one embodiment of the present invention provides a trailer-mounted electric top-drive drilling rig for immersion boreholes, comprising a trailer, a derrick, a drive assembly, and a catwalk. The derrick is oscillatingly disposed at one end of the trailer. The drive assembly is disposed on the derrick and is used to drive one end of the drill pipe to move up or down. The catwalk is located at the end of the trailer near the derrick. The catwalk includes a track, a trolley, a linear drive, and a base. The base is disposed adjacent to the trailer. The track is oscillatingly disposed on the base. The trolley is movablely disposed on the track and is used to support the other end of the drill pipe. The linear drive... The moving part is hinged between the base and the track, and is used to drive the track to swing vertically. When the drive assembly moves one end of the drill rod upward, the end of the track near the derrick swings downward, causing the trolley to move closer to the derrick and moving the other end of the drill rod downward, so as to cooperate with the drive assembly to switch the drill rod to a vertical state. When the drive assembly moves one end of the drill rod downward, the end of the track away from the derrick swings, causing the trolley to move away from the derrick and moving the other end of the drill rod downward, so as to cooperate with the drive assembly to switch the drill rod to a horizontal state.

[0007] As a further technical solution, two linear drive components are provided, which are respectively hinged below different positions of the track. The two linear drive components are spaced apart along the length direction of the track, and the two linear drive components are configured to asynchronously drive the track to tilt or synchronously drive the track to horizontally rise and fall.

[0008] As a further technical solution, a rotating roller is rotatably provided at one end of the track near the derrick, and the rotating roller is used to roll and engage with the end of the drill pipe.

[0009] As a further technical solution, the track is provided with two vertically extending stop bars at one end near the derrick, the stop bars being located at both ends of the rotating roller and used to limit the drill pipe.

[0010] As a further technical solution, the drive assembly includes a top drive that is movably mounted on the derrick, the top drive being used to drive the upper end of the drill pipe downwards. The drive assembly also includes an auxiliary winch, a cantilever crane, and a hoist. The auxiliary winch is mounted on the side of the derrick, the cantilever crane is mounted on the top of the derrick and has a pulley, the auxiliary winch having a strand extending upwards and wound around the pulley, the lower end of the strand being connected to the hoist, the hoist being used to connect to the upper end of the drill pipe.

[0011] As a further technical solution, the side of the derrick is also provided with a vertically swinging manipulator, which is used to grip the drill rod on the hoist and swing laterally to move the drill rod to below the top drive.

[0012] As a further technical scheme, the trailer is further provided with a first large clamp and a second large clamp arranged towards the catwalk, the first large clamp and the second large clamp are arranged in an up-down interval and are both located below the derrick, the first large clamp and the second large clamp are both provided with a gripper, the first large clamp is swingingly arranged on the trailer, and the first large clamp can swing to tighten or loosen the upper drill pipe after the lower drill pipe is clamped and fixed by the second large clamp.

[0013] As a further technical scheme, the second large clamp is liftingly arranged on the trailer, the rear side of the second large clamp is provided with a connecting rod, the side of the connecting rod away from the gripper is provided with an inclined acting surface one, the trailer is further provided with a roller reversing valve for locking the gripper, the roller reversing valve is provided with a roller end for abutting against the acting surface one, the second large clamp is configured to abut the acting surface one against the roller end of the roller reversing valve after descending to lock the gripper in a clamped state, and the second large clamp is configured to cancel the abutment between the acting surface one and the roller end of the roller reversing valve after ascending to unlock the gripper and enable the gripper to switch between a clamped state and a released state.

[0014] As a further technical scheme, the trailer is further provided with a side platform vertically swingingly arranged thereon, the side of the side platform away from the trailer is swingingly provided with a guardrail, the side platform can swing to be horizontal, and the guardrail can swing to be vertical to form a passageway in cooperation with the horizontal side platform; the side platform can also swing to be vertical and be located above the trailer, and the guardrail can also swing to coincide with the vertical side platform to be accommodated above the trailer.

[0015] As a further technical scheme, the trailer is further provided with a hydraulic station, a power distribution cabinet and a main winch, the main winch is located on one side of the derrick and is connected with the top drive to drive the top drive to ascend and descend along the derrick, and the hydraulic station and the power distribution cabinet are located on the side of the main winch away from the derrick.

[0016] The present application has the following beneficial effects:

[0017] In the present application, the track can swing and tilt around the base under the driving of the linear driving member, so that the trolley has kinetic energy to continue to move, solving the problem in the prior art that the trolley cannot continue to move when moving to a certain distance on the horizontal track and needs to consume manpower to pull, reducing the consumption of manpower. The present application realizes that the drill pipe is automatically placed on the catwalk after being disassembled, improves the efficiency of drill pipe assembly and disassembly, and solves the problem of frequent operation and consumption of manpower in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some of the example embodiments of the present application. Other drawings can be obtained by those skilled in the art without any creative effort on the basis of the contents of the example embodiments of the present application and the drawings.

[0019] Figure 1 Fig. 1 is a perspective view of a trailer-type electric top drive drilling machine in an embodiment of the present application;

[0020] Figure 2 Fig. 2 is a structural view of a catwalk in an embodiment of the present application;

[0021] Figure 3 Fig. 3 is a front view of the catwalk in the embodiment of the present application; Figure 2

[0022] Fig. 4 is a side view of the catwalk in the embodiment of the present application; Figure 4 Figure 2 Fig. 5 is a structural view of a derrick, an auxiliary winch, a cantilever crane, a elevator and a drill pipe in an embodiment of the present application;

[0023] Figure 5 Fig. 6 is a structural view of a trailer, a large tong 1, a large tong 2 and a gripper in an embodiment of the present application;

[0024] Figure 6 Fig. 7 is a structural view of the A-A section in the embodiment of the present application;

[0025] Figure 7 Figure 6 Fig. 8 is a structural view of the B-B section in the embodiment of the present application;

[0026] In the drawings: 1, trailer; 2, derrick; 21, driving assembly; 211, top drive; 3, catwalk; 31, track; 311, turning roller; 312, stop lever; 32, trolley; 33, linear driving member; 34, base; 4, drill pipe; 5, mechanical arm; 6, auxiliary winch; 61, wire; 7, cantilever crane; 8, elevator; 9, large tong 1; 10, large tong 2; 11, gripper; 12, connecting rod; 121, action surface 1; 13, roller reversing valve; 131, roller end; 14, side platform; 15, guardrail; 16, passageway; 17, hydraulic station; 18, power distribution cabinet; 19, main winch. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application.

[0028] ​​For the purpose of clarity, only the parts of the apparatus that are pertinent to the invention are shown in the drawings, and they do not necessarily show the actual configuration of the product. In addition, in some of the drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled, in order to make the drawings simple and easy to understand. In this document, "one" means not only "only one", but also "more than one", and "several" includes "two" and "more than two".

[0029] In this document, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0030] In the present invention, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The "lower", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] As Figures 1-4As shown, it shows a ground leaching hole trailer type electric top drive drilling machine in an embodiment of the present application, including trailer 1, derrick 2, drive assembly 21 and catwalk 3. Derrick 2 is swingably mounted on trailer 1, drive assembly 21 is arranged on derrick 2, and catwalk 3 is located on one side of trailer 1 close to derrick 2. Catwalk 3 is composed of track 31, trolley 32, linear drive 33 and base 34, trolley 32 is mounted on track 31 and can move along track 31, track 31 is swingably mounted on base 34, and the output end of linear drive 33 is hinged to track 31. The design principle is to change the inclination angle of track 31 by the extension of linear drive 33 to drive track 31 to swing. When the drill pipe 4 is disassembled, the drive assembly 21 pulls the upper end of the drill pipe 4 down, the other end of the drill pipe 4 is placed on the trolley 32, and the trolley 32 moves on the track 31 away from the derrick 2 by relying on the gravity of the drill pipe 4. At this time, the linear drive 33 can drive the track 31 to swing to the inclined state, and the trolley 32 has a tendency to continue to move, thereby carrying the drill pipe 4 along the inclined track 31 to coincide with the track 31. That is, without manually pulling the trolley 32 to move, the drill pipe 4 can be moved to coincide with the track 31 after being inclined to a certain angle, without consuming manpower. When the track 31 needs to be adjusted to be horizontal, the track 31 can be reset by the linear drive 33. The linear drive 33 can be selected from hydraulic oil cylinder or other existing means.

[0034] The track 31 can be vertically inclined by the linear drive 33 to swing, so that the trolley 32 has the kinetic energy to continue to move, solving the problem in the prior art that the trolley 32 cannot continue to move when it moves to a certain distance on the horizontal track 31 and needs to consume manpower to pull, reducing the consumption of manpower. After the drill pipe 4 is disassembled and placed on the trolley 32, it is automatically gradually attached to the track 31, improving the efficiency of the drill pipe 4 assembly and disassembly, and solving the problem of frequent operation and consumption of manpower in the prior art.

[0035] In the above embodiment, the linear drive 33 is provided as one, one end of the track 31 is hinged to the base 34, and the other end is hinged to the base 34 through the linear drive 33.

[0036] In another embodiment, the linear drive 33 is provided as two, and the two ends of the track 31 are hinged to the base 34 through the two linear drives 33. In addition to the above functions, the two linear drives 33 can also synchronously lift the drill pipe 4 on the catwalk 3 to different heights, for example, when the drill pipe 4 is stacked on one layer, the track 31 can be raised by a distance to allow the drill pipe 4 to be stacked on the upper layer. Compared with the fixed track 31 in the prior art, this structure can more conveniently stack the drill pipe 4, and saves the operation of lifting or lowering the drill pipe 4.

[0037] Two linear driving members 33 are respectively hinged at different positions of the track 31. The design principle is to realize different actions of the track 31 by controlling the extension and retraction states of the two linear driving members 33. When the track 31 needs to be tilted, the two linear driving members 33 are retracted asynchronously, so that the track 31 swings around the base 34 to form a tilt angle; when the track 31 needs to be lifted horizontally, the two linear driving members 33 are retracted synchronously, driving the track 31 to rise or fall as a whole, adapting to the receiving and transferring of the drill pipe 4 in different scenes. The combination of this structure and the swing setting of the track 31 and the movement setting of the trolley 32 further improves the flexibility and adaptability of the catwalk 3, expands the application range of the equipment, and improves the operation efficiency.

[0038] The track 31 is provided with a rotating roller 311 at one end close to the derrick 2, and the rotating roller 311 is used to receive the drill pipe 4. The design principle is to use the rotating characteristics of the rotating roller 311 to reduce the friction between the drill pipe 4 and the end of the track 31. When the drill pipe 4 moves from the derrick 2 to the end of the track 31, the drill pipe 4 contacts the rotating roller 311, and as the drill pipe 4 moves, the rotating roller 311 rotates to stably receive the drill pipe 4 onto the track 31. The setting of the rotating roller 311 makes the sliding friction between the drill pipe 4 and the end of the track 31 change to rolling friction, reducing the wear between the drill pipe 4 and the track 31, and making the receiving process of the drill pipe 4 more smooth. Combined with the tilt setting of the track 31 and the movement setting of the trolley 32, the drill pipe 4 receives less resistance during the transfer process, further ensuring the efficiency and stability of the drill pipe 4 transfer, and prolonging the service life of the equipment.

[0039] The track 31 is provided with two vertically extending blocking rods 312 at one end close to the derrick 2, and the blocking rods 312 are used to limit the drill pipe 4. The design principle is to limit the lateral movement of the drill pipe 4 by the space formed by the two blocking rods 312. When the drill pipe 4 moves on the track 31, the two blocking rods 312 are respectively located on both sides of the drill pipe 4, blocking the drill pipe 4 from deviating to both sides of the track 31, preventing the drill pipe 4 from falling off. The two vertically extending blocking rods 312 can effectively limit the position of the drill pipe 4 at the end of the track 31, preventing the drill pipe 4 from sliding laterally off the track 31 during the transfer process, improving the safety. The combination of this structure and the tilt setting of the track 31 and the movement setting of the trolley 32 improves the safety and precision of the drill pipe 4 transfer process, avoiding the interruption or safety hazards caused by the deviation of the drill pipe 4.

[0040] The side table 14 is swingably mounted on the trailer 1, and the guardrail 15 is swingably mounted at the end away from the trailer 1. The design principle is to realize the formation and storage of the channel 16 through the swing of the side table 14 and the guardrail 15. When the channel 16 is needed for operation, the side table 14 swings to the horizontal state, and the guardrail 15 swings upward to the vertical state, and the side table 14 and the guardrail 15 cooperate to form the channel 16; when storage is needed, the side table 14 swings to the vertical state, and the guardrail 15 swings downward to the vertical state, and they are stored on the trailer 1.

[0041] The swing setting of the side table 14 and the guardrail 15 enables the channel 16 to be quickly formed when operation is needed, facilitates personnel movement and operation on the equipment, and improves the convenience of operation; when it is not needed, it can be stored on the trailer 1, saving space, avoiding trailer 1 width limitation, and being beneficial to the transportation and storage of the equipment. This structure is combined with the overall layout of the trailer 1, which ensures the convenience of operation while not affecting the mobility of the equipment, and improves the practicality of the equipment.

[0042] The trailer 1 is provided with a hydraulic station 17, a power distribution cabinet 18 and a main winch 19, the main winch 19 is located on one side of the derrick 2 and is used to drive the driving assembly 21 to rise and fall on the derrick 2, and the hydraulic station 17 and the power distribution cabinet 18 are located on the side away from the derrick 2 of the main winch 19. The design principle is to reasonably layout each component, so that the hydraulic station 17 and the power distribution cabinet 18 provide power and electrical power support for the equipment, and the main winch 19 provides power for the driving assembly 21 to rise and fall. The working process is: the power distribution cabinet 18 supplies power to each electrical component of the equipment, the hydraulic station 17 provides hydraulic power for the hydraulic drive component, the main winch 19 is driven by the motor to drive the top drive 211 to rise and fall on the derrick 2, and realize drilling and other operation actions.

[0043] In addition to the electric emergency brake, the main winch 19 is also provided with a hand brake, which provides an additional safety measure. In addition, the hand brake is also convenient for employees to operate and control the descending speed of the well drilling tool.

[0044] As shown in FIG. Figure 5 The driving assembly 21 includes a top drive 211 for driving the drill pipe 4 to move downward when the drill pipe 4 is removed, and an auxiliary winch 6, a cantilever crane 7 and a lifting device 8 for driving the drill pipe 4 to move upward when the drill pipe 4 is installed.

[0045] The side of the derrick 2 is provided with a mechanical arm 5 capable of swinging around the vertical direction, and an auxiliary winch 6 is arranged on the side of the mechanical arm 5, and a cantilever crane 7 is arranged on the top of the derrick 2, the wire 61 of the winch is connected to a lifting device 8 through the cantilever crane 7, the lifting device 8 is used to be fixed on one end of the drill pipe 4, the mechanical arm 5 can clamp the drill pipe 4 on the lifting device 8 and send the drill pipe 4 to the lower side of the driving assembly 21 through swinging. The design principle is to realize the loading of the drill pipe 4 through the swinging of the mechanical arm 5, the rotation of the cantilever crane 7 and the winding and unwinding of the wire 61 of the auxiliary winch 6. The working process is as follows: first, the drill pipe 4 to be loaded is placed on the track 31, then the lifting device 8 is fixed on the end of the drill pipe 4 close to the derrick 2, the auxiliary winch 6 drives the drill pipe 4 to be lifted through the wire 61 and the cantilever crane 7, at this time, the track 31 is tilted by the linear driving part 33 to make the end of the drill pipe 4 close to the derrick 2 lower than the other end on the trolley 32, so that the trolley 32 has the kinetic energy of moving close to the derrick 2 and can give the end of the drill pipe 4 a certain pushing force to promote the lifting of the drill pipe 4, when the drill pipe 4 is lifted to the appropriate position, the mechanical arm 5 swings to the drill pipe 4 and clamps the drill pipe 4, then the mechanical arm 5 swings to send the drill pipe 4 to the lower side of the driving assembly 21 to complete the preparation of the butt joint of the drill pipe 4.

[0046] The cooperation of the mechanical arm 5, the auxiliary winch 6, the cantilever crane 7 and the lifting device 8 realizes the automatic handling and positioning of the drill pipe 4 from the lifting device 8 to the lower side of the driving assembly 21, and the cooperation of the tiltable track 31 reduces the labor input.

[0047] As shown in Figure 6 , Figure 7 , the mounting structure of the large tongs one 9 and the large tongs two 10 in an embodiment of the present application is shown, the large tongs one 9 and the large tongs two 10 are arranged on the trailer 1 and are arranged above and below and are located below the derrick 2, the clamping devices 11 are arranged on the large tongs one 9 and the large tongs two 10, and the large tongs one 9 is arranged on the trailer 1 in a manner capable of rotating around the vertical direction. The design principle is to fix the lower drill pipe 4 by the large tongs two 10 and rotate the large tongs one 9 to realize the tightening or loosening of the upper drill pipe 4. The working process is as follows: when the drill pipe 4 is loaded or unloaded, the clamping device 11 of the large tongs two 10 clamps and fixes the lower drill pipe 4, the clamping device 11 of the large tongs one 9 clamps the upper drill pipe 4, then the large tongs one 9 rotates around the vertical direction to tighten or loosen the connection between the upper drill pipe 4 and the lower drill pipe 4.

[0048] The large tongs one 9 and the large tongs two 10 are arranged above and below, and the large tongs one 9 can rotate around the vertical direction and the large tongs two 10 can fix the lower drill pipe 4, and the cooperation of the structure realizes the automatic tightening or loosening of the connection between the drill pipes 4. The arrangement of the clamping device 11 ensures the stable clamping of the drill pipe 4 and avoids the drill pipe 4 from falling during the operation process. Combined with the lifting of the driving assembly 21 and the drill pipe 4 conveying structure of the catwalk 3, the mechanization of the drill pipe 4 loading and unloading process is realized, and the operation efficiency and the reliability of the connection are improved.

[0049] The second tong 10 is installed on the trailer 1 in a liftable manner, and the second tong 10 is provided with a connecting rod 12 at the rear side, the connecting rod 12 has an acting surface 121, and the trailer 1 is provided with a roller reversing valve 13, and the roller end 131 of the roller reversing valve 13 is in abutment or abutment cancellation with the acting surface 121. The design principle is that the connecting rod 12 is driven to move by the lifting of the second tong 10, so that the acting surface 121 is in contact or abutment cancellation with the roller end 131 of the roller reversing valve 13, thereby controlling the hydraulic state of the clamp 11. For example, when the second tong 10 is in the initial state, that is, in the position after falling, at this time, the acting surface 121 is in abutment with the roller end 131 of the roller reversing valve 13, the hydraulic flow of the clamp 11 is cut off, the clamp 11 cannot be started, and the clamp 11 can be kept in the clamping state, so that even if the hydraulic switch of the clamp 11 is accidentally touched, the clamp 11 will not loosen the drill pipe 4, thereby preventing the drill pipe 4 from falling accidentally; when it is needed to loosen the clamp 11, the drill pipe 4 needs to be lifted to drive the second tong 10 to rise by a distance, the connecting rod 12 rises with it, so that the acting surface 121 is no longer in abutment with the roller end 131, so that the roller end 131 is laterally displaced, at this time, the hydraulic flow of the clamp 11 is opened, the hydraulic switch of the clamp 11 is restored to normal, and the hydraulic switch can be operated to control the clamp 11, and the clamp 11 in the loosening state can be reset to the position after falling by means of the spring arranged at the bottom. When the second tong 10 needs to be lifted again, an external driving element can be used. The clamp 11 can be selected from existing hydraulic clamps.

[0050] The lifting of the second tong 10 is matched with the connecting rod 12 and the roller reversing valve 13, so that the automatic switching of the clamp 11 state is realized, one more safety protection measure is provided, and the drill pipe 4 is prevented from falling due to accidental touch of the clamp 11 switch.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A in-situ leaching hole trailer type electric top drive drilling machine, comprising a trailer (1), a derrick (2), a drive assembly (21) and a catwalk (3), the derrick (2) is swingably arranged at one end of the trailer (1), the drive assembly (21) is arranged on the derrick (2) and used to drive an end of a drill rod (4) to move up or down, and the catwalk (3) is located at one end of the trailer (1) close to the derrick (2), characterized in that, The catwalk (3) comprises a track (31), a trolley (32), a linear drive (33) and a base (34), the base (34) is arranged adjacent to the trailer (1), the track (31) is swingably arranged on the base (34), the trolley (32) is movably arranged on the track (31) and used for supporting the other end of the drill rod (4), The linear drive (33) is hingedly connected between the base (34) and the track (31) and used for driving the track (31) to vertically swing; when the driving assembly (21) drives the one end of the drill rod (4) to move upward, the one end of the track (31) close to the derrick (2) swings downward to drive the trolley (32) to move to the side close to the derrick (2) and drive the other end of the drill rod (4) to move downward, so as to cooperate with the driving assembly (21) to drive the drill rod (4) to switch to the vertical state; when the driving assembly (21) drives the one end of the drill rod (4) to move downward, the one end of the track (31) away from the derrick (2) swings downward to drive the trolley (32) to move to the side away from the derrick (2) and drive the other end of the drill rod (4) to move downward, so as to cooperate with the driving assembly (21) to drive the drill rod (4) to switch to the horizontal state.

2. A ground leachable in-hole trailer-mounted electric top drive drilling rig according to claim 1, characterized in that, The linear drive (33) is hingedly connected between the base (34) and the track (31) and used for driving the track (31) to vertically swing; when the driving assembly (21) drives the one end of the drill rod (4) to move upward, the one end of the track (31) close to the derrick (2) swings downward to drive the trolley (32) to move to the side close to the derrick (2) and drive the other end of the drill rod (4) to move downward, so as to cooperate with the driving assembly (21) to drive the drill rod (4) to switch to the vertical state; when the driving assembly (21) drives the one end of the drill rod (4) to move downward, the one end of the track (31) away from the derrick (2) swings downward to drive the trolley (32) to move to the side away from the derrick (2) and drive the other end of the drill rod (4) to move downward, so as to cooperate with the driving assembly (21) to drive the drill rod (4) to switch to the horizontal state.

3. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 1 wherein, The track (31) is rotatably provided with a rotating roller (311) at the one end close to the derrick (2), and the rotating roller (311) is used for rolling cooperation with the end of the drill rod (4).

4. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 3 wherein, The track (31) is provided with two vertically extending blocking rods (312) at the one end close to the derrick (2), and the blocking rods (312) are located at both ends of the rotating roller (311) and used for limiting the drill rod (4).

5. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 1 wherein, The driving assembly (21) comprises a top drive (211) movably arranged on the derrick (2), the top drive (211) is used for driving the upper end of the drill rod (4) to move downward, the driving assembly (21) further comprises an auxiliary winch (6), a cantilever crane (7) and a lifting device (8), the auxiliary winch (6) is arranged on the side of the derrick (2), the cantilever crane (7) is arranged on the top of the derrick (2) and has a pulley, the auxiliary winch (6) has a wire (61) extending upward and wound around the pulley, the lower end of the wire (61) is connected with the lifting device (8), and the lifting device (8) is used for being connected with the upper end of the drill rod (4).

6. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 5 wherein, The side of the derrick (2) is further provided with a vertically swingable manipulator (5), and the manipulator (5) is used for clamping the drill rod (4) on the lifting device (8) and swinging laterally to drive the drill rod (4) to move below the top drive (211).

7. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 1 wherein, The trailer (1) is also provided with a large tongs one (9) and a large tongs two (10) arranged towards the catwalk (3), the large tongs one (9) and the large tongs two (10) are arranged in an upper and lower interval and are located below the derrick (2), the large tongs one (9) and the large tongs two (10) are each provided with a clamp (11), the large tongs one (9) is swingingly arranged on the trailer (1), and the large tongs one (9) can swing after clamping and fixing the lower drill rod (4) below the large tongs two (10) to tighten or loosen the upper drill rod (4).

8. A ground breaching, trailer mounted, electric top drive drilling rig according to claim 7, characterised in that, The large tongs two (10) is liftingly arranged on the trailer (1), the large tongs two (10) is provided with a connecting rod (12) at the rear side, the connecting rod (12) is provided with an inclined action surface one (121) away from the clamp (11), the trailer (1) is also provided with a roller reversing valve (13) for locking the clamp (11), the roller reversing valve (13) has a roller end (131) for abutting against the action surface one (121), the large tongs two (10) is configured to abut the action surface one (121) against the roller end (131) of the roller reversing valve (13) after descending to lock the clamp (11) in a clamping state; the large tongs two (10) is configured to abut the action surface one (121) away from the roller end (131) of the roller reversing valve (13) after ascending to unlock the clamp (11) and enable the clamp (11) to switch between clamping and loosening states.

9. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 1 wherein, The trailer (1) is also vertically swingingly provided with a side table (14), the side table (14) is swingingly provided with a guardrail (15) away from the trailer (1), the side table (14) can be swung to be horizontal, and the guardrail (15) can be swung to be vertical to form a passage (16) with the horizontal side table (14); the side table (14) can also be swung to be vertical and located above the trailer (1), and the guardrail (15) can also be swung to coincide with the vertical side table (14) to be accommodated above the trailer (1).

10. A ground breaching, trailer mounted, electric top drive drilling rig as claimed in claim 5 wherein, The trailer (1) is also provided with a hydraulic station (17), a power distribution cabinet (18) and a main winch (19), the main winch (19) is located on one side of the derrick (2) and connected with the top drive (211) for driving the top drive (211) to ascend and descend along the derrick (2), the hydraulic station (17) and the power distribution cabinet (18) are located on the side of the main winch (19) away from the derrick (2).

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