A trailer-mounted power head core drill

Abstract

The utility model relates to the technical field of drilling machine, proposes a trailer type power head core drilling machine, including trailer chassis, derrick, power head, rope winch, rope coring pulley, rope coring pull rope, the derrick set up on trailer chassis, power head swing set relative to derrick lift, power head swing, for turning to the one side of derrick, the rope winch sets up on trailer chassis, the rope coring pulley rotation sets up on derrick, the fixed end of rope coring pull rope is connected with rope winch, the connecting end of rope coring pull rope extends to the connecting end of derrick after passing through the rope coring pulley, after power head turns to the one side of derrick, the connecting end of rope coring pull rope is used for connecting with the fisher. Through the above technical scheme, the problem that the trailer type core drilling machine has poor adaptability to the stratum in the related art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling rig, specifically, relates to a trailer type power head core drilling rig. BACKGROUND

[0002] With the progress and development of science and technology, drilling engineering technology is also rapidly improved and developed, and the application range of drilling engineering is more and more extensive, and the demand for drilling is more and more large, the core drilling rig is important equipment in drilling engineering, and is mainly used in the fields of geological exploration, mining resource drilling, engineering construction drilling and the like. After obtaining the core sample by using the core drilling rig, the core sample can be used to analyze the formation mineral type, yield and content, and the rock layer physical property can also be obtained. Core drilling generally includes two methods, one is to use ordinary core drill rod to drill, and the other method is to use a rope to drill, the latter has the advantages of fast drilling speed, less mud usage during drilling, convenient operation and easy realization of full-hole coring, but the latter can only drill hard rock layers, and the soft formation can only use the common drill to drill. There are various trailer type core drilling rigs on the market, but the adaptability to the formation is poor. SUMMARY

[0003] The utility model provides a trailer type power head core drilling rig, solve the problem that the trailer type core drilling rig of related art has poor adaptability to the formation.

[0004] The technical scheme of the utility model is as follows: a trailer type power head core drilling rig, the key lies in that,

[0005] The trailer chassis,

[0006] The derrick is arranged on the trailer chassis;

[0007] The power head is arranged to be lifted and swung relative to the derrick, and after swinging, the power head is used to turn to one side of the derrick;

[0008] The rope winch is arranged on the trailer chassis;

[0009] The rope coring pulley is rotatably arranged on the derrick;

[0010] The fixed end of the rope coring pull rope is connected with the rope winch, the connecting end of the rope coring pull rope extends to the connecting end of the derrick after passing through the rope coring pulley, and after the power head turns to one side of the derrick, the connecting end of the rope coring pull rope is used to be connected with the fishing tool.

[0011] Further, it further comprises,

[0012] Swing arm, which is arranged on the derrick, one end of the swing arm is hinged to the derrick, the other end of the swing arm is rotated away from the derrick when the derrick is in vertical state, for turning over above the well mouth;

[0013] Guide pulley, which is arranged on the other end of the swing arm, the connecting end of the rope core pulling rope is arranged around the guide pulley, for connecting with the fishing tool.

[0014] Further, a lifting seat is arranged on the derrick, the power head is swing arranged outside the lifting seat, one side of the power head is hinged to the lifting seat, and the other side of the power head is detachably connected with the lifting seat.

[0015] Further, it further comprises,

[0016] Positioning sleeve, which is arranged on the other side of the power head;

[0017] Telescopic mechanism, the fixed end of the telescopic mechanism is connected with the lifting seat, and the connection is close to the other side of the power head, the movable end of the telescopic mechanism is inserted into the positioning sleeve after the telescopic mechanism is extended.

[0018] Further, it further comprises,

[0019] First clamping plate, which is arranged on the lifting seat and located at one end of the positioning sleeve;

[0020] Second clamping plate, which is arranged on the lifting seat and located at the other end of the positioning sleeve, the movable end of the telescopic mechanism passes through the first clamping plate and / or the second clamping plate after the telescopic mechanism is extended, for being inserted into the positioning sleeve which is clamped between the first clamping plate and the second clamping plate.

[0021] Further, it further comprises,

[0022] First ear plate, which is arranged on the derrick and located on the side of the derrick away from the trailer chassis, the first ear plate is arranged on both sides of the derrick;

[0023] Second ear plate, which is arranged on the derrick and located on the side of the derrick away from the trailer chassis, the second ear plate is arranged on both sides of the derrick, the first ear plate and the second ear plate on the same side of the derrick are arranged along the length direction of the derrick;

[0024] Second floor, which is located on the side of the derrick away from the trailer chassis, the second floor is connected with the first ear plate or the second ear plate.

[0025] Further comprising,

[0026] A swing frame is located behind the trailer chassis, one end of the swing frame is hinged to the rear end of the trailer chassis;

[0027] A driller house is arranged at the other end of the swing frame, after the other end of the swing frame rotates away from the trailer chassis, the driller house is used to swing to the outside of the trailer chassis.

[0028] Further comprising,

[0029] A stand is used to lay around the wellhead, after the derrick is turned over, the lower end of the derrick is used to be placed on the stand;

[0030] A laying table is arranged on the stand and located on one side of the stand.

[0031] Further comprising a telescopic supporting mechanism, one end of the telescopic supporting mechanism is connected with the derrick, after the derrick is turned over upward, the other end of the telescopic supporting mechanism is used to contact with the upper end surface of the stand, at least two telescopic supporting mechanisms are arranged on the left and right sides of the derrick at the same time, and all the telescopic supporting mechanisms located on the same side of the derrick are arranged along the length direction of the derrick.

[0032] Further comprising,

[0033] A main winch is arranged on the trailer chassis;

[0034] A main winch pulley is rotatably arranged on the derrick;

[0035] A main winch pulling rope is connected with the main winch at one end;

[0036] A trolley is slidably arranged on the derrick, the other end of the main winch pulling rope is connected with the trolley;

[0037] A fishing tool is connected with the trolley.

[0038] The working principle and beneficial effects of the utility model are as follows: the derrick is arranged on the trailer chassis; the power head is arranged to be lifted and swung relative to the derrick, after the power head is swung, it is used to turn to one side of the derrick; the rope winch is arranged on the trailer chassis; the rope core pulley is rotatably arranged on the derrick; the fixed end of the rope core pulling rope is connected with the rope winch, the connecting end of the rope core pulling rope is extended to the connecting end of the derrick after winding around the rope core pulley, after the power head is turned to one side of the derrick, the connecting end of the rope core pulling rope is used to be connected with the fishing tool.

[0039] When drilling operation is needed, the derrick can be turned up until the derrick is vertically above the wellhead to provide stable and vertical guide support for subsequent drill rod operation. When ordinary core drill rod is needed to take core, the power head is connected with the drill rod, the drill rod is driven up and down by the lifting of the power head on the derrick, so that the drill rod cuts into the rock layer according to the predetermined track, the core is taken by the ordinary drill, and the core taking demand of the soft formation is met. The rope winch is arranged on the trailer chassis and serves as the power source of the whole rope core taking system to provide stable tension. The rope core taking pulley is rotatably arranged on the derrick and plays a key role in changing the direction of the rope core taking pull rope. When the rope core taking is needed, the power head is first turned to one side of the derrick to provide space for subsequent rope core taking operation, then the connecting end of the rope core taking pull rope is connected with the fishing tool, the fishing tool is connected with the inner tube in the wellhead, then the rope winch is started to wind up the rope core taking pull rope, and the inner tube with the core sample can be taken out from the wellhead. A set of equipment can realize seamless switching of two core taking modes without complex disassembly and assembly, can improve the adaptability to the formation, can be easily used for complex geological exploration, mineral exploitation drilling and various engineering construction drilling, can reduce the debugging and waiting time of the equipment, can significantly improve the overall efficiency of drilling and core taking, and can reduce the labor intensity of workers. BRIEF DESCRIPTION OF DRAWINGS

[0040] The above characteristics, technical features, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and easy-to-understand manner in combination with the drawings.

[0041] Figure 1 It is a front view of the connection between the derrick and the trailer chassis when the derrick is vertically arranged in the present application.

[0042] Figure 2 It is a front view of the connection between the derrick and the trailer chassis when the derrick is vertically arranged in the present application. Figure 1 It is an enlarged view of A in the present application.

[0043] Figure 3 It is a structural schematic view of the derrick when the derrick is vertically arranged in the present application.

[0044] Figure 4 It is a structural schematic view of the connection between the swing arm and the derrick in the present application.

[0045] Figure 5 It is a structural schematic view of the swing arm in two different states in the present application.

[0046] Figure 6 It is an enlarged view of B in the present application. Figure 3 It is an enlarged view of B in the present application.

[0047] Figure 7 It is a perspective view of the connection between the derrick and the trailer chassis when the derrick is vertically arranged in the present application.

[0048] Figure 8 For Figure 7 The connection structure diagram of the second floor and the derrick.

[0049] Figure 9 The connection structure diagram of the derrick and the trailer chassis when the derrick is retracted.

[0050] In the figure: 1, trailer chassis, 2, derrick, 3, power head, 4, rope winch, 5, rope coring pulley, 6, rope coring pull rope, 7, swing arm, 8, guide pulley, 9, lifting seat, 10, positioning sleeve, 11, telescopic mechanism, 12, first clamping plate, 13, second clamping plate, 14, first ear plate, 15, second ear plate, 16, second floor, 17, swing frame, 18, driller house, 19, stand, 20, platform, 21, telescopic support mechanism, 22, main winch, 23, main winch pulley, 24, main winch pull rope, 25, trolley, 26, elevator, 27, telescopic cylinder, 28, manipulator, 29, drill pipe, 30, lifting device, 31, pipe wrench, 32, mixing tank, 33, mud pump, 34, hydraulic station, 35, support leg. DETAILED DESCRIPTION

[0051] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the specific implementation manner of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained according to these drawings and other embodiments can be obtained without creative labor for those skilled in the art.

[0052] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0053] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] 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.

[0055] Embodiment, refer to Figures 1-9 , an embodiment of the utility model discloses a trailer type power head core drill, including trailer chassis 1, derrick 2, power head 3, rope winch 4, rope coring pulley 5, rope coring pull rope 6, derrick 2 sets up on trailer chassis 1, power head 3 is set up to swing relative to derrick 2 and lifts, power head 3 swings, and is used to turn to one side of derrick 2, rope winch 4 sets up on trailer chassis 1, rope coring pulley 5 rotationally sets up on derrick 2, the fixed end of rope coring pull rope 6 is connected with rope winch 4, and the connecting end of rope coring pull rope 6 extends to the connecting end of derrick 2 after passing through rope coring pulley 5, after power head 3 turns to one side of derrick 2, the connecting end of rope coring pull rope 6 is used to be connected with fishing tool.

[0056] In the embodiment, when not needing operation, as shown in Figure 9 , derrick 2 is horizontally placed on trailer chassis 1, the rear end of derrick 2 is hinged with trailer chassis 1, and the hinge shaft is arranged along the left-right direction, and a telescopic cylinder 27 is hinged between the middle part of derrick 2 and trailer chassis 1, at this time, the telescopic cylinder 27 is in the retracted state. When drilling operation is needed, the telescopic cylinder 27 is elongated, the front end of derrick 2 can be turned up, until derrick 2 is vertically above the well mouth, as shown in Figure 1 , to provide stable and vertical guide support for subsequent drill rod operation. When ordinary core drill rod is needed to be used for coring, the power head 3 is connected with the drill rod, the power head 3 is used to provide power for the drill rod drilling, and the speed can be infinitely variable between 0~700r / min, the drill rod is driven to move up and down on derrick 2 through the lifting of power head 3, so that the drill rod cuts into the rock formation according to the predetermined track, the general drilling coring is realized, and the coring requirement of soft formation is met.

[0057] Rope winch 4 is arranged on trailer chassis 1, as the power source of the whole rope coring system, to provide stable pulling force. Rope coring pulley 5 is rotationally installed at the front end of derrick 2, to play a key role in changing the direction of rope coring pull rope 6. When rope coring is needed, first, the power head 3 is turned to one side of derrick 2 to make room for subsequent rope coring operation, then the connecting end of rope coring pull rope 6 is connected with the fishing tool, the fishing tool is connected with the inner tube in the well mouth, then the rope winch 4 is started to retract the rope coring pull rope 6, and the inner tube with the core sample can be taken out from the well mouth. A set of equipment can realize seamless switching of two coring modes without complex disassembly and assembly, can improve the adaptability to the formation, and can be easily handled for complex geological exploration, mineral exploitation drilling, and various engineering construction drilling. The debugging and waiting time of the equipment can be reduced, the overall efficiency of drilling and coring can be significantly improved, and the labor intensity of workers can be reduced.

[0058] like Figure 3 As shown, a robotic arm 28 is installed on the right side of the derrick 2. The robotic arm 28 can move in three-dimensional space and is used to move the drill pipe 29 in a straight line. Normal drilling does not require personnel on the second-level platform 16. Figure 3 and Figure 7 As shown, a pipe wringer 31 is installed at the rear end of the derrick 2. When the derrick 2 is vertical, the pipe wringer 31 is located directly above the wellhead.

[0059] like Figure 9 As shown, the trailer chassis 1 is also equipped with a mixing tank 32, a mud pump 33, and a hydraulic station 34. The mixing tank 32 is used to mix and prepare the drilling mud required for drilling, ensuring that the mud composition is uniform and its performance meets drilling requirements. The mud pump 33 is used to pressurize and transport the mud or flushing fluid in the mixing tank 32 into the borehole, playing a role in cooling the drill bit, carrying rock cuttings back to the surface, balancing formation pressure, and stabilizing the wellbore. The hydraulic station 34 provides power and pressurized oil to various hydraulic actuators (such as hydraulic cylinders and hydraulic motors) of the entire drilling equipment, realizing the control of various hydraulic actuators.

[0060] Furthermore, such as Figure 3 , Figure 4 and Figure 5 As shown, it also includes a swing arm 7 and a guide pulley 8. The swing arm 7 is mounted on the derrick 2. One end of the swing arm 7 is hinged to the derrick 2. After the derrick 2 is in a vertical position, the other end of the swing arm 7 rotates away from the derrick 2 to flip it over to the top of the wellhead. The guide pulley 8 is rotatably mounted on the other end of the swing arm 7. The connecting end of the core retrieval rope 6 passes around the guide pulley 8 and is used to connect to the retrieval device.

[0061] The rear end of the swing arm 7 is hinged to the derrick 2, with the hinge axis positioned in the left-right direction. The guide pulley 8 is rotatably mounted at the front end of the swing arm 7, with its axis positioned in the left-right direction. When coring with a standard core drill pipe is required, the swing arm 7 is positioned vertically and concealed inside the derrick 2, and the guide pulley 8 is raised, as shown... Figure 4 As shown. When rope core sampling is required, such as... Figure 5 As shown, the upper end of the swing arm 7 flips backward and downward, changing from being set in the vertical direction to being set in the horizontal direction. The guide pulley 8 is lowered and reaches above the wellhead. The connecting end of the wireline coring rope 6 passes around the guide pulley 8 and connects to the retrieval device. The guide pulley 8 can guide and limit the wireline coring rope 6, preventing the wireline coring rope 6 from wearing down the drill pipe threads during coring, and also preventing the wireline coring rope 6 from being damaged.

[0062] Furthermore, such as Figure 6As shown, the device further comprises a lifting seat 9, which is arranged to be lifted on the derrick 2, the power head 3 is arranged to swing outside the lifting seat 9, and one side of the power head 3 is hinged to the lifting seat 9, and the other side of the power head 3 is detachably connected to the lifting seat 9.

[0063] The lifting seat 9 is arranged to be lifted on the derrick 2, and can move smoothly along the derrick 2 according to the structure of the derrick 2. The power head 3 is located outside (i.e. behind) the lifting seat 9, the left side of the power head 3 is hinged to the lifting seat 9, and the hinge shaft is arranged along the length direction of the derrick 2, and the right side of the power head 3 is detachably connected to the lifting seat 9, so that the power head 3 is arranged to swing on the lifting seat 9. This connection mode allows the power head 3 to take the hinge as a fulcrum, which can change the height position by lifting the lifting seat 9, and can also swing at a certain angle relative to the lifting seat 9, which is convenient for adjusting or maintaining the power head 3 according to different operation requirements. The derrick 2 is nested with a lifting device 30 for driving the lifting seat 9 to lift, and the derrick 2 is also provided with a guide rail, on which the lifting seat 9 slides up and down, and the power head 3 can pressurize drilling by means of the lifting device 30 after driving the drill rod to drill.

[0064] Further, as shown in the drawings, Figure 6 The device further comprises a positioning sleeve 10 and a telescopic mechanism 11, the positioning sleeve 10 is arranged at the movable end of the power head 3, and the fixed end of the telescopic mechanism 11 is connected to the lifting seat 9, and the connection is close to the other side of the power head 3, and the movable end of the telescopic mechanism 11 is inserted into the positioning sleeve 10 after the telescopic mechanism 11 is extended.

[0065] The positioning sleeve 10 is arranged at the right side of the power head 3 as a positioning reference. The telescopic mechanism 11 is located at the right side of the power head 3 and in front of the positioning sleeve 10, and the front end of the telescopic mechanism 11 is connected to the lifting seat 9. When the power head 3 is needed, the telescopic mechanism 11 is in an extended state, and the rear end of the telescopic mechanism 11 is inserted into the positioning sleeve 10, so as to lock the right end of the power head 3 and the lifting seat 9 together. When the rope coring is needed, the telescopic mechanism 11 is first retracted, so that the rear end of the telescopic mechanism 11 is separated from the positioning sleeve 10, and then the power head 3 is turned to the left side of the derrick 2. The structure is simple and convenient to operate, which can not only ensure the stable position of the power head 3 during work, but also facilitate the turning of the power head 3.

[0066] Further, as shown in the drawings, Figure 6 The device further comprises a first clamping plate 12 and a second clamping plate 13, the first clamping plate 12 is arranged on the lifting seat 9 and located at one end of the positioning sleeve 10, and the second clamping plate 13 is arranged on the lifting seat 9 and located at the other end of the positioning sleeve 10. After the telescopic mechanism 11 is extended, the movable end of the telescopic mechanism 11 passes through the first clamping plate 12 and / or the second clamping plate 13, and is inserted into the positioning sleeve 10 which is clamped between the first clamping plate 12 and the second clamping plate 13.

[0067] Taking the first clamping plate 12 as an example, which is located on the lifting seat 9 and in front of the positioning sleeve 10, the second clamping plate 13 is located on the lifting seat 9 and behind the positioning sleeve 10. The telescopic mechanism 11 is located in front of the first clamping plate 12, and the first clamping plate 12 and the second clamping plate 13 form a clamping space. When the telescopic mechanism 11 extends, its movable end passes through the first clamping plate 12 along a predetermined path and engages with the positioning sleeve 10, which is engaged between the first clamping plate 12 and the second clamping plate 13. This improves the accuracy and reliability of the connection between the telescopic mechanism 11 and the positioning sleeve 10. When the derrick 2 is erected, the second clamping plate 13 can support the positioning sleeve 10 and the power head 3. Regardless of the state of the derrick 2, the first clamping plate 12 and the second clamping plate 13 can limit the positioning sleeve 10 located between them, preventing the positioning sleeve 10 and the power head 3 from shaking. This better ensures the continuity and stability of drilling operations, improves the overall reliability of the equipment, reduces the risk of equipment failure, and extends the service life of the equipment.

[0068] Furthermore, such as Figure 3 , Figure 7 , Figure 8 and Figure 9 As shown, it also includes a first ear plate 14, a second ear plate 15, and a second-level platform 16. The first ear plate 14 is disposed on the derrick 2 and located on the side of the derrick 2 away from the trailer chassis 1. There are first ear plates 14 on both the left and right sides of the derrick 2. The second ear plate 15 is disposed on the derrick 2 and located on the side of the derrick 2 away from the trailer chassis 1. There are second ear plates 15 on both the left and right sides of the derrick 2. The first ear plate 14 and the second ear plate 15 located on the same side of the derrick 2 are arranged along the length direction of the derrick 2. The second-level platform 16 is located on the side of the derrick 2 away from the trailer chassis 1 and is connected to the first ear plate 14 or the second ear plate 15.

[0069] When the derrick 2 is placed horizontally on the trailer chassis 1, the first ear plate 14 and the second ear plate 15 on both the left and right sides are located above the derrick 2, with the first ear plate 14 and the second ear plate 15 on the same side of the derrick 2 arranged in a front-to-back direction. The second-layer platform 16 can be fixed between the two first ear plates 14 or between the two second ear plates 15. The lengths of ordinary core drill pipe and wireline coring drill pipe are different. When the derrick 2 is erected, the installation position of the second-layer platform 16 can be switched according to actual needs, so that the second-layer platform 16 is at a suitable installation height.

[0070] Furthermore, such as Figure 1 , Figure 7 and Figure 9As shown, the drilling rig further comprises a swing frame 17, a driller house 18, the swing frame 17 is located at the rear of the trailer chassis 1, and one end of the swing frame 17 is hinged to the rear end of the trailer chassis 1; the driller house 18 is arranged at the other end of the swing frame 17, and after the other end of the swing frame 17 rotates away from the trailer chassis 1, the driller house 18 is used to swing to the outside of the trailer chassis 1.

[0071] The conventional core drilling rig platform is on the trailer chassis 1, and the platform of the trailer chassis 1 is generally about 1.5 m high from the ground, and the single pipe or drill string needs to be frequently raised and lowered on the platform, which not only increases the risk of workers, but also reduces the operation efficiency. The space on the trailer chassis 1 is limited, and the wellhead worker is inconvenient to operate, and there is no place to place the driller house 18, and most of them use another driller house base, which has poor integration, is heavy in structure, and is extremely inconvenient to move and transport. The utility model integrates the driller house 18 on the trailer chassis 1. Taking the left end of the swing frame 17 as an example, the hinge shaft is arranged in the vertical direction, the driller house 18 is arranged at the right end of the swing frame 17, and when not in use, the driller house 18 is attached to the rear end of the derrick 2, as shown in Figure 9 , transported together with the vehicle, and does not need to be transported separately. When the right end of the swing frame 17 rotates to the rear of the trailer chassis 1, the driller house 18 swings to the left rear of the trailer chassis 1, as shown in Figure 7 , the wellhead can be reserved with sufficient operating space for the operator, avoiding operation in a narrow and cramped environment, facilitating the driller to observe the overall situation of the drilling site in real time and accurately control the equipment, improving the control precision and comfort of the drilling operation, reducing the mistakes caused by inconvenient operation, and ensuring the smooth drilling.

[0072] Further comprising a supporting leg 35, one end of the supporting leg 35 is hinged to the driller house 18, and the other end of the supporting leg 35 is detachably connected with the driller house 18. After the driller house 18 swings to the outside of the trailer chassis 1, the other end of the supporting leg 35 is flipped downward to contact the ground, which can support the driller house 18, so that the stability of the driller house 18 is better.

[0073] Further, as shown in Figure 7 , the drilling rig further comprises a stand 19 and a platform 20, the stand 19 is used to be laid outside the wellhead, and the lower end of the derrick 2 is used to be placed on the stand 19 after the derrick 2 is flipped; the platform 20 is arranged on the stand 19 and located at one side of the stand 19.

[0074] The stand 19 is laid on the periphery of the wellhead, and when the front end of the derrick 2 is turned upward to be vertical, the lower end of the derrick 2 is placed on the stand 19, the weight of the lower end of the derrick 2 is borne by the support plane of the stand 19, the stress on the bottom of the derrick 2 can be dispersed, the sinking and tilting of the derrick 2 during drilling can be prevented, the stability of the derrick 2 is enhanced, and the drilling verticality is ensured. The platform 20 is arranged on one side of the stand 19, and can provide convenience for the workers to temporarily place tools and equipment, reduce the time for the workers to take and place the tools back and forth, and improve the work efficiency. The platform 20 is integrated with the stand 19, the height of the drilling platform can be reduced, and the workers can walk back and forth between the drilling platform and the ground conveniently. The driller house 18 can be turned to the empty land outside the platform 20, and the operation space of the workers at the wellhead is increased.

[0075] Further, as shown in Figure 1 、 Figure 3 、 Figure 7 and Figure 9 , the telescopic support mechanism 21 is further included, one end of the telescopic support mechanism 21 is connected with the derrick 2, the other end of the telescopic support mechanism 21 is used to contact the upper end surface of the stand 19 after the derrick 2 is turned upward, at least two telescopic support mechanisms 21 are arranged on the left and right sides of the derrick 2 at the same time, and all the telescopic support mechanisms 21 on the same side of the derrick 2 are arranged along the length direction of the derrick 2.

[0076] The front and rear telescopic support mechanisms 21 are arranged on the left and right sides of the derrick 2 at the same time, when the derrick 2 is erected, the upper ends of the four telescopic support mechanisms 21 are connected with the derrick 2, and the lower ends are in contact with the stand 19, the four telescopic support mechanisms 21 are arranged in a rectangular shape, a multi-point support system is formed, the support force is provided by the telescopic driving modes such as hydraulic, pneumatic or screw rod, the connection part between the stand 19 and the derrick 2 is supported from multiple angles and positions, various lateral forces and torsional forces in the drilling process are resisted, the stability and carrying capacity of the derrick 2 can be improved, the derrick 2 can always maintain a vertical state under complex working conditions, and a solid foundation is laid for high-quality drilling operation.

[0077] Further, as shown in Figure 1 、 Figure 2 、 Figure 7 and Figure 9 , the main winch 22, the main winch pulley 23, the main winch rope 24, the trolley 25 and the elevator 26 are further included, the main winch 22 is arranged on the trailer chassis 1; the main winch pulley 23 is rotationally arranged on the derrick 2; one end of the main winch rope 24 is connected with the main winch 22; the trolley 25 is slidingly arranged on the derrick 2, the other end of the main winch rope 24 is connected with the trolley 25; and the elevator 26 is connected with the trolley 25.

[0078] The main winch 22 is arranged on the trailer chassis 1 as a power source, the main winch pulley 23 is arranged at the front end of the derrick 2 and the axis is arranged along the left-right direction, and the direction of the main winch pull rope 24 is changed by the main winch pulley 23. One end of the main winch pull rope 24 is connected with the main winch 22, and the other end is connected with the trolley 25. When the main winch 22 retracts or releases the pull rope, the trolley 25 slides on the derrick 2 according to the tension of the rope, the hoisting device 26 is connected with the trolley 25, and the lifting action of the heavy object such as the drill pipe is realized through the hoisting device 26. When the drilling is needed, the power head 3 is swung out to leave the well mouth, and the main winch 22 drives the trolley 25 and the hoisting device 26 to hoist or lower the drill pipe, so that strong and stable power can be provided for the lifting operation of the drill pipe, the drill pipe can be quickly and efficiently lifted or lowered, the whole operation rhythm can be improved, the labor intensity of manual transportation of the drill pipe can be reduced, and the operation safety and efficiency can be improved. The main winch 22 adopts a direct-drive motor without a traditional speed reducer, so that the space can be saved.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalent, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A trailer-mounted power head core drilling rig, characterized in that: include, Trailer chassis (1) A derrick (2) is mounted on the trailer chassis (1); A power head (3) is raised and lowered and swung relative to the derrick (2). After swinging, the power head (3) is used to flip to one side of the derrick (2). A rope winch (4) is mounted on the trailer chassis (1); A wireline coring pulley (5) is rotatably mounted on the derrick (2); The fixed end of the core-sampling pull rope (6) is connected to the rope winch (4), and the connecting end of the core-sampling pull rope (6) extends to the connecting end of the derrick (2) after passing around the core-sampling pulley (5). After the power head (3) flips to one side of the derrick (2), the connecting end of the core-sampling pull rope (6) is used to connect with the retrieval device.

2. The trailer-mounted power head core drilling rig according to claim 1, characterized in that: It also includes, A swing arm (7) is mounted on the derrick (2). One end of the swing arm (7) is hinged to the derrick (2). After the derrick (2) is in a vertical position, the other end of the swing arm (7) rotates away from the derrick (2) to flip over to the top of the wellhead. The guide pulley (8) is rotatably disposed at the other end of the swing arm (7). The connecting end of the core pulling rope (6) passes around the guide pulley (8) and is used to connect with the retrieval device.

3. The trailer-mounted power head core drilling rig according to claim 1, characterized in that: It also includes a lifting seat (9), which is raised and lowered on the derrick (2), and the power head (3) is swung and positioned outside the lifting seat (9). One side of the power head (3) is hinged to the lifting seat (9), and the other side of the power head (3) is detachably connected to the lifting seat (9).

4. A trailer-mounted power head core drilling rig according to claim 3, characterized in that: It also includes, Positioning sleeve (10), the positioning sleeve (10) is disposed on the other side of the power head (3); Telescopic mechanism (11), the fixed end of the telescopic mechanism (11) is connected to the lifting seat (9), and the connection is close to the other side of the power head (3). After the telescopic mechanism (11) is extended, the movable end of the telescopic mechanism (11) is inserted into the positioning sleeve (10).

5. A trailer-mounted power head core drilling rig according to claim 4, characterized in that: It also includes, The first clamping plate (12) is disposed on the lifting seat (9) and located at one end of the positioning sleeve (10); The second clamping plate (13) is disposed on the lifting seat (9) and located at the other end of the positioning sleeve (10). After the telescopic mechanism (11) is extended, the movable end of the telescopic mechanism (11) passes through the first clamping plate (12) and / or the second clamping plate (13) for insertion into the positioning sleeve (10) that is snapped between the first clamping plate (12) and the second clamping plate (13).

6. A trailer-mounted power head core drilling rig according to claim 1, characterized in that: It also includes, First ear plate (14), the first ear plate (14) is disposed on the derrick (2) and located on the side of the derrick (2) away from the trailer chassis (1), and there are first ear plates (14) on both the left and right sides of the derrick (2). The second ear plate (15) is disposed on the derrick (2) and located on the side of the derrick (2) away from the trailer chassis (1). There are second ear plates (15) on both the left and right sides of the derrick (2). The first ear plate (14) and the second ear plate (15) located on the same side of the derrick (2) are arranged along the length direction of the derrick (2). The second platform (16) is located on the side of the derrick (2) away from the trailer chassis (1), and the second platform (16) is connected to the first ear plate (14) or the second ear plate (15).

7. A trailer-mounted power head core drilling rig according to claim 1, characterized in that: It also includes, A swing frame (17) is located behind the trailer chassis (1), and one end of the swing frame (17) is hinged to the rear end of the trailer chassis (1). The driller's cabin (18) is located at the other end of the swing frame (17). After the other end of the swing frame (17) is rotated away from the trailer chassis (1), the driller's cabin (18) is used to swing to the outside of the trailer chassis (1).

8. A trailer-mounted power head core drilling rig according to claim 1, characterized in that: It also includes, The support platform (19) is used to be laid around the wellhead. After the well frame (2) is flipped over, the lower end of the well frame (2) is used to be placed on the support platform (19). A platform (20) is provided on the root support (19) and located on one side of the root support (19).

9. A trailer-mounted power head core drilling rig according to claim 8, characterized in that: It also includes a telescopic support mechanism (21), one end of which is connected to the derrick (2). After the derrick (2) is flipped upward, the other end of the telescopic support mechanism (21) is used to contact the upper surface of the support platform (19). At least two telescopic support mechanisms (21) are provided on both the left and right sides of the derrick (2). All the telescopic support mechanisms (21) located on the same side of the derrick (2) are arranged along the length direction of the derrick (2).

10. A trailer-mounted power head core drilling rig according to claim 1, characterized in that: It also includes, The main winch (22) is mounted on the trailer chassis (1); The main winch pulley (23) is rotatably mounted on the derrick (2); The main winch pull rope (24) is connected at one end to the main winch (22); A pulley (25) is slidably mounted on the derrick (2), and the other end of the main winch pull rope (24) is connected to the pulley (25); The lifting device (26) is connected to the pulley (25).

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