Small vehicle-mounted drilling machine

Abstract

The invention relates to the technical field of vehicle-mounted drilling rigs, and one embodiment of the invention provides a small vehicle-mounted drilling rig which is characterized in that a derrick is arranged on a vehicle body in a swinging manner; the rotating part is rotationally arranged relative to the derrick, and the rotating axial direction of the rotating part is perpendicular to the swinging axial direction of the derrick; the telescopic part is telescopically arranged on the rotating part, and the telescopic direction of the telescopic part is perpendicular to the rotating axial direction of the rotating part and the swinging axial direction of the derrick; and the drill rod clamp is rotationally arranged relative to the telescopic part, and the rotating axial direction of the drill rod clamp is parallel to the telescopic direction of the telescopic part. According to the technical scheme, the technical problem that the drill rod is inconvenient to replace in the prior art is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of vehicle-mounted drilling rigs, and more particularly, to a small vehicle-mounted drilling rig. Background Art

[0002] As a movable drilling device, the vehicle-mounted drilling rig was born to meet the needs of efficient and flexible drilling operations in fields such as geological exploration and foundation engineering construction. With the advancement of the industrialization process, the exploration of underground resources and the scale of various infrastructure constructions have been continuously expanding. Traditional fixed drilling rigs are difficult to quickly adapt to the needs of different working sites due to the cumbersome installation and disassembly processes, and are extremely inconvenient to transport under complex terrain conditions. The vehicle-mounted drilling rig came into being. It integrates the drilling equipment on the vehicle chassis, has good mobility, can quickly reach the working site and quickly start working, greatly improving the working efficiency and shortening the project cycle.

[0003] In related technologies, when the vehicle-mounted drilling rig is actually applied, the following problems still exist: (1) It is not convenient to replace the drill pipe. When actually replacing the drill pipe, the drill pipe is loaded or unloaded in cooperation with the catwalk and the top drive device. During the movement process, the drill pipe lacks limitation and is not stable, and is easy to shake and hit the derrick, so the safety is not high enough; (2) The use of the large tong is inconvenient. When using the traditional drill pipe power tong, it needs to be suspended on the bottom girder of the crown block by a steel wire rope, and the tail needs to be connected and fixed to the derrick through a transfer cylinder. The height adjustment is carried out with a chain hoist; it occupies a large space, and the large tong needs to be manually pushed and adjusted frequently, resulting in a large labor intensity. Moreover, for some small drilling rigs, the drill floor is small and the derrick is narrow, and the traditional large tong hoisting and using system is not applicable to this type of drilling rig; (3) The pressure loss of the hydraulic system is large. The hydraulic system of the existing vehicle-mounted drilling rig has pressure loss caused by reasons such as too long pipeline length, too many pipe bends and joints, and unreasonable system pressure setting.

[0004] Therefore, it is necessary to improve the existing vehicle-mounted drilling rig to solve the above problems. Summary of the Invention

[0005] To overcome the above defects, embodiments of the present disclosure provide a small vehicle-mounted drilling rig, which solves the technical problem of inconvenient replacement of drill pipes in related technologies.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a small vehicle-mounted drilling rig, the vehicle-mounted drilling rig comprising: A vehicle body; A derrick, swingably arranged on the vehicle body; A rotating member, rotatably arranged relative to the derrick, the rotation axis of the rotating member being perpendicular to the swing axis of the derrick; A telescopic member is telescopically provided on the rotating member, and the telescopic direction of the telescopic member is perpendicular to the rotating axis of the rotating member and the swinging axis of the derrick. A drill pipe clamp is rotatably provided relative to the telescopic member, and the rotating axis of the drill pipe clamp is parallel to the telescopic direction of the telescopic member.

[0007] For example, a small vehicle-mounted drilling rig provided by at least one embodiment of the present disclosure further includes: A fixed rod is provided on the derrick, and the rotating member is rotatably provided relative to the derrick by being rotatably provided on the fixed rod. A rotation driving member is provided on the telescopic member, and the drill pipe clamp is rotatably provided relative to the telescopic member by being provided on the rotation driving member.

[0008] For example, a small vehicle-mounted drilling rig provided by at least one embodiment of the present disclosure has an operation hole on the vehicle body for passing through the drill pipe, and the vehicle-mounted drilling rig further includes: A rotating wheel is used for rotatably setting on the derrick and is located on one side of the operation hole for inserting the drill pipe. The axis of the rotating wheel is parallel to the axis of the operation hole. The number of the rotating wheels is multiple, and the drill pipe is used for being inserted into the cavity surrounded by all the rotating wheels. After the rotating wheels rotate, they are used to drive the drill pipe to rotate.

[0009] For example, a small vehicle-mounted drilling rig provided by at least one embodiment of the present disclosure further includes: A positioning cover is provided on the derrick. The number of the positioning covers is two, and the two positioning covers are symmetrically arranged on both sides of the axis of the operation hole. Two rotating wheels are rotatably connected to each positioning cover, and the drill pipe is used for passing through the positioning cover. A positioning seat is used for rotatably setting on the derrick. The axis of the positioning seat coincides with the axis of the operation hole, and the positioning cover is provided on the positioning seat. A telescopic mechanism, the telescopic direction of the telescopic mechanism is perpendicular to the axis of the rotating wheel. The fixed end of the telescopic mechanism is connected to the positioning seat, and the extending end of the telescopic mechanism is located between two adjacent rotating wheels. The number of the telescopic mechanisms is at least two. After all the telescopic mechanisms extend, they are used to clamp the drill pipe and drive the drill pipe to rotate by means of the rotation of the positioning seat.

[0010] For example, a small vehicle-mounted drilling rig provided by at least one embodiment of the present disclosure, the positioning seat has an arc-shaped side surface, and the arc-shaped side surface is coaxially arranged with the positioning seat. The vehicle-mounted drilling rig further includes: A clamping plate, which is connected to the extended end of the telescopic mechanism and is located between two adjacent rotating wheels. After the telescopic mechanism extends, the clamping plate is used to contact the drill pipe; An arc-shaped rack, which is arranged on the arc-shaped side surface; A toothed plate, which is used to be slidably arranged on the derrick and is located outside the arc-shaped rack. The toothed plate meshes with the arc-shaped rack, and after the toothed plate slides, it is used to drive the arc-shaped rack and the positioning seat to rotate.

[0011] For example, a small vehicle-mounted drill rig provided by at least one embodiment of the present disclosure, the vehicle-mounted drill rig further includes: A swing arm, which is swingably arranged on the vehicle body, above the operation hole and below the positioning cover. The swing axis of the swing arm is perpendicular to the swing axis of the derrick; An automatic clamping member, which is swingably arranged on the swing arm. The swing axis of the automatic clamping member is parallel to the swing axis of the swing arm, and the automatic clamping member has inclined clamping teeth; A limiting member, which is arranged on the vehicle body and is located on one side of the automatic clamping member for limiting the automatic clamping member; There are two of the swing arm, the automatic clamping member and the limiting member, which are symmetrically distributed on both sides of the operation hole. After the two clamping teeth contact the drill pipe, they gradually approach each other and clamp the drill pipe.

[0012] For example, a small vehicle-mounted drill rig provided by at least one embodiment of the present disclosure, the surface of the rotating wheel has anti-slip convex rings. There are multiple anti-slip convex rings, and all the anti-slip convex rings on the same rotating wheel are arranged at intervals along the axial direction of the rotating wheel.

[0013] For example, a small vehicle-mounted drill rig provided by at least one embodiment of the present disclosure, the side surface of the clamping plate facing the drill pipe has anti-slip convex strips. There are multiple anti-slip convex strips, and all the anti-slip convex strips on the same clamping plate are arranged at intervals along the length direction of the drill pipe.

[0014] For example, a small vehicle-mounted drill rig provided by at least one embodiment of the present disclosure, the vehicle-mounted drill rig further includes: A linear drive member, which is arranged on the derrick and has an output end; A top drive, which is arranged on the derrick in a lifting manner and is connected to the output end of the linear drive member.

[0015] For example, a small vehicle-mounted drill rig provided by at least one embodiment of the present disclosure, the vehicle-mounted drill rig further includes: A fuel tank, which is arranged on the vehicle body; An oil pump is provided on the vehicle body, on one side of the fuel tank. The fuel tank is connected to the oil pump through a pipeline. An electric motor is provided on the vehicle body, on one side of the fuel tank. The electric motor is drivingly connected to the oil pump. A generator is provided on the vehicle body, on one side of the fuel tank. The generator is used to supply power to the electric motor and the top drive. An engine is provided on the vehicle body, on one side of the fuel tank. The engine is used to drive the generator to generate electricity.

[0016] The beneficial effects of the embodiments of the present disclosure are as follows: Drill pipe replacement is safer and more efficient: The drill pipe clamp, the telescopic member and the rotating member cooperate with each other, and the drill pipe is precisely controlled throughout the replacement process. The drill pipe clamp can reliably limit the shaking of the drill pipe, greatly reducing the risk of the drill pipe hitting the derrick. The operator can efficiently complete the drill pipe replacement work, and both safety and efficiency are improved.

[0017] Optimization of the use of the tongs: This new structural design makes the installation and operation of the tongs more reasonable. By virtue of the characteristics that the drill pipe clamp, the telescopic member and the rotating member can flexibly adjust their positions and angles, the tongs can be installed in a more suitable position, and the relative position between the tongs and the drill pipe can be adjusted through their coordinated movement, solving the problem that the operation of the tongs is inconvenient due to the small space of the small drilling rig, reducing the labor intensity and the space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a vehicle-mounted drilling rig in an embodiment of the present disclosure; Figure 2 For Figure 1 an enlarged structural diagram of a partial A in the embodiment of Figure 3 It is an exploded structural diagram of a rotating drive member and a drill pipe clamp in another embodiment of the present disclosure; Figure 4 For Figure 1 an enlarged structural diagram of a partial B in the embodiment of Figure 5 It is a schematic structural diagram of a positioning seat in another embodiment of the present disclosure; Figure 6 ForFigure 5 Schematic structural diagram of the partial C magnification in the embodiment; Figure 7 Schematic cross-sectional view of the positioning seat in another embodiment of the present disclosure; In the figure: 1, vehicle body; 2, derrick; 3, rotating member; 4, telescopic member; 5, drill pipe clamp; 6, fixed rod; 7, rotating drive member; 8, drill pipe; 9, operation hole; 10, rotating wheel; 11, cavity; 12, positioning cover; 13, positioning seat; 14, telescopic mechanism; 15, arc-shaped side surface; 16, clamping plate; 17, arc-shaped rack; 18, toothed plate; 19, swing arm; 20, automatic clamping member; 21, clamping teeth; 22, limiting member; 23, anti-slip convex ring; 24, anti-slip convex strip; 25, linear drive member; 26, top drive; 27, fuel tank; 28, oil pump; 29, motor; 30, generator; 31, engine. Detailed implementation manners

[0020] The present disclosure will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0021] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0022] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0023] In the present disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0024] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present disclosure.

[0025] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be construed as indicating or implying relative importance.

[0026] As Figures 1 to 3 shown, it shows a small vehicle-mounted drill in an embodiment of the present disclosure. The vehicle-mounted drill includes: a vehicle body 1; a derrick 2 is swingably arranged on the vehicle body 1; a rotating member 3 is rotatably arranged relative to the derrick 2, and the rotation axis of the rotating member 3 is perpendicular to the swing axis of the derrick 2; a telescopic member 4 is telescopically arranged on the rotating member 3, and the telescopic direction of the telescopic member 4 is perpendicular to the rotation axis of the rotating member 3 and the swing axis of the derrick 2; a drill pipe clamp 5 is rotatably arranged relative to the telescopic member 4, and the rotation axis of the drill pipe clamp 5 is parallel to the telescopic direction of the telescopic member 4.

[0027] In some examples, the derrick 2 is slowly erected with the hinge part on the vehicle body 1 as the axis. During the erection process, the operator observes the scale markings on the derrick 2 to ensure that the derrick 2 accurately reaches the working angle perpendicular to the ground. After the derrick 2 is erected, when it is necessary to load or replace the drill pipe 8, the rotating member 3 at the upper part of the derrick 2 starts to operate. The rotating member 3 rotates to the side close to the drill pipe vehicle, and then the drill pipe clamp 5 installs the drill pipe 8 onto the drill pipe clamp 5, and the drill pipe clamp 5 clamps the drill pipe 8. At this time, the drill pipe 8 is still in a horizontal state. Subsequently, the drill pipe clamp 5 rotates to rotate the drill pipe 8 to a vertical state. Then, other drill pipe clamps 5 above clamp the upper position of the drill pipe 8. Finally, multiple groups of rotating members 3 rotate together to move the vertically placed drill pipe 8 to the side close to the derrick 2, and the telescopic member 4 telescopically adjusts the position of the drill pipe 8 to make it directly above the wellhead and align with the wellhead.

[0028] Among them, the telescopic member 4 can adopt a multi-stage hydraulic telescopic rod, and its cylinder body is firmly connected to the outside of the rotating member 3. At this time, the operator controls the hydraulic system to allow hydraulic oil to flow into the corresponding cavity, and the piston rod extends, driving the drill pipe clamp 5 connected to the end to approach the drill pipe on the catwalk or the drill pipe truck. When the telescopic member 4 sends the drill pipe clamp 5 to the appropriate position, the drill pipe clamp 5 rotates to align with the drill pipe, the jaws open to grab the drill pipe, and then, the telescopic member 4 retracts, and at the same time, the rotating member 3 rotates again to transfer the drill pipe clamp 5 holding the drill pipe above the wellhead.

[0029] For example, as Figure 3 shown, the advantages of this design are that the drill pipe replacement is safer and more efficient: the drill pipe clamp 5, the telescopic member 4 and the rotating member 3 cooperate with each other, the drill pipe is precisely controlled during the entire replacement process, the drill pipe clamp 5 can reliably limit the shaking of the drill pipe, greatly reducing the risk of the drill pipe hitting the derrick 2. The operator can efficiently complete the drill pipe replacement work, and both safety and efficiency are improved. Optimization of the tong use: This new structural design makes the installation and operation of the tong more reasonable. With the characteristics that the drill pipe clamp 5, the telescopic member 4 and the rotating member 3 can flexibly adjust the position and angle, the tong can be installed in a more suitable position, and the relative position between the tong and the drill pipe is adjusted through their coordinated movement, solving the problem that the operation of the tong is inconvenient due to the small space of the small drilling rig, reducing the labor intensity and reducing the space occupation.

[0030] As Figures 1 to 3 shown, it shows a small vehicle-mounted drilling rig in another embodiment of the present disclosure. The vehicle-mounted drilling rig further includes: a fixed rod 6 is arranged on the derrick 2, and the rotating member 3 is rotatably arranged relative to the derrick 2 by rotating on the fixed rod 6; a rotation driving member 7 is arranged on the telescopic member 4, and the drill pipe clamp 5 is rotatably arranged relative to the telescopic member 4 by being arranged on the rotation driving member 7.

[0031] In some examples, the rotating member 3 is installed on the fixed rod 6 through a rotating structure such as a bearing. For example, the fixed rod 6 is made of high-strength alloy steel and its surface is finely processed. The rotating member 3 is sleeved on the fixed rod 6, and the bearing between the two can bear large radial and axial loads. When it is necessary to adjust the horizontal angle of the drill pipe clamp 5, the motor drives the rotating member 3 to rotate around the fixed rod 6, thereby changing the position of the drill pipe clamp 5 in the horizontal direction. Since the fixed rod 6 is firmly installed on the derrick 2, the rotation of the rotating member 3 is more stable and reliable. The rotation driving member 7 arranged on the telescopic member 4 provides power for the rotation of the drill pipe clamp 5. The rotation driving member 7 can be a small hydraulic motor, whose housing is fixed on the telescopic member 4, and the drill pipe clamp 5 is connected to the output shaft of the hydraulic motor.

[0032] For example, as Figure 2As shown, the advantages of this design are as follows: enhancing rotational stability: The fixed rod 6 provides stable support for the rotating member 3, making the rotation of the rotating member 3 relative to the derrick 2 smoother, reducing shaking and deviation. This not only helps improve the accuracy of adjusting the angle of the drill pipe clamp 5 in the horizontal direction but also extends the service life of the rotating member 3 and related components, ensuring the stability of the entire drilling operation. Optimizing the structural layout: This design makes the structural layout of the drilling rig more compact and reasonable. The setting of the fixed rod 6 and the rotation driving member 7 effectively realizes the rotation function of the rotating member 3 and the drill pipe clamp 5 without occupying too much space, making full use of the space of the derrick 2 and the telescopic member 4, which is especially suitable for the high requirements of small vehicle-mounted drilling rigs for space utilization.

[0033] As Figure 4 shown, it shows a small vehicle-mounted drilling rig in an embodiment of the present disclosure. The vehicle body 1 has an operation hole 9 for passing through the drill pipe 8. The vehicle-mounted drilling rig further includes: a rotating wheel 10 is rotatably arranged on the derrick 2 and is located on one side of the operation hole 9 for inserting the drill pipe. The axial direction of the rotating wheel 10 is parallel to the axial direction of the operation hole 9. The number of the rotating wheels 10 is multiple. The drill pipe is inserted into the cavity 11 surrounded by all the rotating wheels 10. After the rotating wheels 10 rotate, they are used to drive the drill pipe to rotate; a rotation driving mechanism is arranged on the derrick 2. The rotation driving mechanism is in transmission connection with the rotating wheels 10 and is used to drive the rotating wheels 10 to rotate.

[0034] In the present disclosure, when the drilling rig is in use, the derrick 2 is in an upright state, the operation hole 9 is located at the lower end of the derrick 2, and the axes of the rotating wheels 10 and the operation hole 9 are both arranged in the up and down direction. After the lower end of the new drill pipe passes through the cavity 11 surrounded by all the rotating wheels 10 and the operation hole 9 on the derrick 2 in sequence, the new drill pipe is aligned with the drill pipe in the well. The rotation driving mechanism is started. When the rotation driving mechanism works, it can transmit power to the rotating wheels 10, causing the rotating wheels 10 to start rotating. Since the drill pipe is inserted into the cavity 11 surrounded by multiple rotating wheels 10, when the rotating wheels 10 rotate, a frictional force will be generated on the surface of the drill pipe. Using this frictional force, the rotating wheels 10 can drive the drill pipe to rotate, thereby realizing the threaded connection between the new drill pipe and the existing drill pipe in the well. When disassembling the drill pipe, the rotation driving mechanism drives the rotating wheels 10 to rotate in the reverse direction, and the rotating wheels 10 can drive the drill pipe to rotate in the reverse direction, thereby realizing the separation between the drill pipes.

[0035] Compared with the operator manually rotating the drill pipe, the present disclosure uses a mechanical driving method to drive the drill pipe to rotate, which can complete the connection and disassembly operations of the drill pipe more quickly, is more time-saving and labor-saving, can greatly reduce the labor intensity of the operator, shorten the operation time, and improve the working efficiency of drilling.

[0036] As Figures 5 to 7As shown in the figure, it shows a small vehicle-mounted drilling rig in another embodiment of the present disclosure. The vehicle-mounted drilling rig further includes: a positioning cover 12 for being arranged on the derrick 2. The number of the positioning covers 12 is two, and the two positioning covers 12 are symmetrically arranged on both sides of the axis of the operation hole 9. Two rotating wheels 10 are rotatably connected to each positioning cover 12. A rotation driving mechanism is arranged on the positioning cover 12, and the drill pipe is used to pass through the positioning cover 12; a positioning seat 13 is rotatably arranged on the derrick 2, and the axis of the positioning seat 13 coincides with the axis of the operation hole 9. The positioning cover 12 is arranged on the positioning seat 13; the telescopic direction of the telescopic mechanism 14 is perpendicular to the axial direction of the rotating wheel 10. The fixed end of the telescopic mechanism 14 is connected to the positioning seat 13, and the extending end of the telescopic mechanism 14 is located between two adjacent rotating wheels 10. The number of the telescopic mechanisms 14 is at least two. After all the telescopic mechanisms 14 extend, they are used to clamp the drill pipe 8, and drive the drill pipe 8 to rotate by means of the rotation of the positioning seat 13.

[0037] As Figures 5 to 7 shown, taking the example that the left and right positioning covers 12 are symmetrically arranged on the left and right sides of the operation hole 9, the front and rear two rotating wheels 10 on the left share one positioning cover 12, and the front and rear two rotating wheels 10 on the right share one positioning cover 12. The right side of the left positioning cover 12 is open, and the left side of the right positioning cover 12 is open. The positioning cover 12 provides support and positioning for the rotating wheel 10, and ensures that the four rotating wheels 10 can contact the drill pipe. Installing one positioning cover 12 can realize the connection between two rotating wheels 10 and the derrick 2, which is more simple and convenient.

[0038] As Figures 5 to 7 shown, the positioning seat 13 can rotate around the axis of the operation hole 9. The left and right two telescopic mechanisms 14 are symmetrically arranged, and the positioning cover 12, the rotating wheel 10, the rotation driving mechanism and the telescopic mechanism 14 rotate synchronously with the positioning seat 13. When installing the drill pipe, the derrick 2 is in an upright state. After aligning the new drill pipe with the drill pipe in the well, first use the rotation driving mechanism to drive the rotating wheel 10 to rotate, so that the new drill pipe rotates for the first time and is threadedly connected to the drill pipe already in the well. Then extend the telescopic mechanism 14. After the extending ends of all the telescopic mechanisms 14 clamp the drill pipe, the telescopic mechanism 14 stops operating. Rotate the positioning seat 13. The positioning seat 13 drives the telescopic mechanism 14 to rotate, and the telescopic mechanism 14 drives the new drill pipe to rotate for the second time to complete the threaded connection between the new drill pipe and the drill pipe already in the well. Then the telescopic mechanism 14 contracts back to the initial position, and the positioning seat 13 rotates in the reverse direction back to the initial position. It can avoid the insufficient connection firmness between the two drill pipes caused by the insufficient friction between the rotating wheel 10 and the drill pipe. Moreover, both the rotating wheel 10 and the positioning seat 13 only need to rotate a small angle to realize the connection between the two drill pipes.

[0039] As Figures 5 to 7As shown, it shows a small vehicle-mounted drill in another embodiment of the present disclosure. The positioning seat 13 has an arc-shaped side surface 15, and the arc-shaped side surface 15 is coaxially arranged with the positioning seat 13. The vehicle-mounted drill further includes a clamping plate 16. The clamping plate 16 is connected to the extended end of the telescopic mechanism 14 and is located between two adjacent rotating wheels 10. After the telescopic mechanism 14 extends, the clamping plate 16 is used to contact the drill pipe; an arc-shaped rack 17 is arranged on the arc-shaped side surface 15; a toothed plate 18 is used to be slidably arranged on the derrick 2 and is located outside the arc-shaped rack 17. The toothed plate 18 meshes with the arc-shaped rack 17. After the toothed plate 18 slides, it is used to drive the arc-shaped rack 17 and the positioning seat 13 to rotate.

[0040] As Figure 7 shown, the left and right clamping plates 16 are respectively installed at the extended ends of the corresponding side telescopic mechanisms 14 and are both located between two adjacent front and rear rotating wheels 10. When the telescopic mechanism 14 extends, the clamping plate 16 approaches and presses tightly against the drill pipe, which can increase the stress area of the drill pipe and avoid damage to the drill pipe due to excessive local pressure.

[0041] As Figure 5 shown, the positioning seat 13 has two left and right arc-shaped side surfaces 15. An arc-shaped rack 17 is installed on each arc-shaped side surface 15. The length direction of the toothed plate 18 is arranged in the front-rear direction and meshes with the arc-shaped rack 17. When the toothed plate 18 slides along the front-rear direction on the derrick 2, it will drive the arc-shaped rack 17 to rotate, and the arc-shaped rack 17 drives the positioning seat 13 to rotate, which can accurately control the rotation angle of the positioning seat 13, thereby accurately controlling the rotation angle of the drill pipe.

[0042] As Figure 4 shown, it shows a small vehicle-mounted drill in another embodiment of the present disclosure, further including: a swing arm 19 is swingably arranged on the vehicle body 1, below the positioning cover 12. The swing axis of the swing arm 19 is perpendicular to the swing axis of the derrick 2; an automatic clamping member 20 is swingably arranged on the swing arm 19. The swing axis of the automatic clamping member 20 is parallel to the swing axis of the swing arm 19. The automatic clamping member 20 has inclined clamping teeth 21; a limiting member 22 is arranged on the vehicle body 1, on one side of the automatic clamping member 20, for limiting the automatic clamping member 20; there are two swing arms 19, two automatic clamping members 20, and two limiting members 22. The adjacent parts of the two swing arms 19 are symmetrically distributed on both sides above the operation hole 9. After the two clamping teeth 21 contact the drill pipe 8, they gradually approach each other and clamp the drill pipe 8.

[0043] For example, as Figure 4As shown, when assembling two drill pipes 8, the first drill pipe 8 is conveyed near the operation hole 9. The operator activates the control button, and the hydraulic oil pushes the swing cylinder of the swing arm 19. The swing arm 19 starts to swing with the hinge point with the vehicle body 1 as the axis, gradually swinging downward from the initial retracted state to a suitable position above the operation hole 9. Then, the automatic clamping member 20 installed on the swing arm 19 starts to work. The automatic clamping member 20 is provided with inclined clamping teeth 21. When the two automatic clamping members 20 symmetrically distributed on both sides of the operation hole 9 swing downward and the clamping teeth 21 contact the drill pipe 8, due to the inclined design of the clamping teeth 21 and the continuous swing of the automatic clamping member 20, the two clamping teeth 21 gradually approach each other, just like two hands gradually clenching the drill pipe 8 from both sides, and finally firmly clamp the first drill pipe 8. Then, the top drive 26 installs the second drill pipe 8 onto the first drill pipe 8. During the swing of the automatic clamping member 20, the limiting member 22 arranged on the vehicle body 1 on one side of the automatic clamping member 20 comes into play. The limiting member 22 can be a metal block with a buffer rubber pad. When the automatic clamping member 20 swings to a certain angle and is about to swing excessively, the limiting member 22 will block the continuous swing of the automatic clamping member 20 to prevent it from being damaged due to excessive swing or causing unnecessary damage to the drill pipe 8. The two swing arms 19, automatic clamping members 20 and limiting members 22 are symmetrically distributed on both sides of the operation hole 9 and work together to ensure stable and reliable clamping of the drill pipe 8.

[0044] The advantages of such a design are as follows: improving the operation stability of the drill pipe 8: through the coordinated action of the swing arm 19, automatic clamping member 20 and limiting member 22, when assembling multiple drill pipes 8, the drill pipe 8 below can be stably clamped from both sides, effectively avoiding the shaking and deviation of the drill pipe 8 below during the operation process, greatly improving the stability when assembling the drill pipe 8, reducing the risk of operation errors caused by the instability of the drill pipe 8, and ensuring the smooth progress of the drilling operation. Precise clamping and adaptability: the design of the inclined clamping teeth 21 of the automatic clamping member 20 enables the automatic realization of the gradual clamping action after contacting the drill pipe 8. Not only is the clamping effect good, but it can also adapt to drill pipes 8 of different diameters. As long as the diameter of the drill pipe 8 is within a certain range, the clamping teeth 21 can achieve close fitting and clamping through a reasonable swing angle, improving the adaptability of the equipment to drill pipes 8 of different specifications. Protecting the drill pipe 8 and the equipment: the setting of the limiting member 22 can prevent the automatic clamping member 20 from swinging excessively, avoiding excessive pressure exerted by the automatic clamping member 20 on the drill pipe 8 and causing surface damage to the drill pipe 8. At the same time, it also protects the automatic clamping member 20 itself from being damaged due to excessive swing, extending the service life of the equipment and reducing the maintenance cost.

[0045] As Figures 5 to 7As shown, it shows a small vehicle-mounted drill rig in another embodiment of the present disclosure. The surface of the rotating wheel 10 has anti-slip convex rings 23. There are multiple anti-slip convex rings 23, and all the anti-slip convex rings 23 on the same rotating wheel 10 are arranged at intervals along the axial direction of the rotating wheel 10.

[0046] As Figure 6 shown, the anti-slip convex rings 23 can increase the contact area and friction coefficient between the rotating wheel 10 and the drill pipe. When the rotating wheel 10 rotates, it can drive the drill pipe to rotate synchronously more effectively, prevent the drill pipe from slipping due to insufficient friction, ensure that the drill pipe can rotate stably with the rotating wheel 10 when connecting or disassembling the drill pipe thread, reduce the operation interruption caused by slipping, and can speed up the installation and disassembly speed of the drill pipe and improve the operation efficiency of drilling.

[0047] As Figures 5 to 7 shown, it shows a small vehicle-mounted drill rig in another embodiment of the present disclosure. The side surface of the clamping plate 16 facing the drill pipe has anti-slip convex strips 24. There are multiple anti-slip convex strips 24, and all the anti-slip convex strips 24 on the same clamping plate 16 are arranged at intervals along the length direction of the drill pipe.

[0048] For example, as Figure 6 shown, when in use, the derrick 2 is erected. The axis of the rotating wheel 10 is arranged in the up-down direction. All the anti-slip convex strips 24 on the side surface of the clamping plate 16 are distributed at intervals in the up-down direction. When the clamping plate 16 clamps the drill pipe and drives the drill pipe to rotate, the anti-slip convex strips 24 can increase the friction between the clamping plate 16 and the drill pipe, making the clamping effect of the clamping plate 16 on the drill pipe more continuous and stable.

[0049] As Figure 1 shown, it shows a small vehicle-mounted drill rig in another embodiment of the present disclosure. The vehicle-mounted drill rig further includes: a linear drive member 25 is arranged on the derrick 2, and the linear drive member 25 has an output end; a top drive 26 is arranged on the derrick 2 in a lifting manner and is connected to the output end of the linear drive member 25.

[0050] For example, as Figure 1 shown, the linear drive member 25 can adopt an oil cylinder. The oil cylinder is used to drive the top drive 26 to lift and lower. The top drive 26 is connected to the end of the piston rod of the linear drive member 25. The whole top drive 26 is arranged to lift and lower with the derrick 2 through a guide rail slider mechanism. The guide rail is installed on the derrick 2, and the slider is fixedly connected to the top drive 26. As the piston rod of the linear drive member 25 extends or retracts, the top drive 26 moves up and down along the guide rail on the derrick 2. For example, when starting to drill, the linear drive member 25 pushes the top drive 26 down so that the drill bit on the top drive 26 contacts the ground and starts to rotate and drill; when it is necessary to replace the drill pipe, the linear drive member 25 drives the top drive 26 to rise, leaving enough space for the loading and unloading operation of the drill pipe.

[0051] The advantages of such a design are as follows: precisely controlling the position of the top drive 26: the linear drive 25 can provide stable and precise lifting power for the top drive 26. By controlling the output of the linear drive 25, the position of the top drive 26 on the derrick 2 can be accurately adjusted, ensuring that the drill bit can accurately reach the target depth during drilling, improving the accuracy of the drilling operation, and avoiding drilling deviation caused by improper position control of the top drive 26. Improving the drilling efficiency: the fast response characteristic of the linear drive 25 enables the top drive 26 to quickly rise or fall, reducing the auxiliary operation time such as drill pipe replacement and equipment adjustment. For example, when continuously drilling multiple holes, the top drive 26 can quickly feed the drill pipe downward for drilling, improving the overall drilling operation efficiency and shortening the project cycle.

[0052] As Figure 1 shown, it shows a small vehicle-mounted drilling rig in another embodiment of the present disclosure. The vehicle-mounted drilling rig further includes: a fuel tank 27 is arranged on the vehicle body 1; an oil pump 28 is arranged on the vehicle body 1, on one side of the fuel tank 27, and the fuel tank 27 is connected to the oil pump 28 through a pipeline; a motor 29 is arranged on the vehicle body 1, on one side of the fuel tank 27, and the motor 29 is drivingly connected to the oil pump 28; a generator 30 is arranged on the vehicle body 1, on one side of the fuel tank 27, and the generator 30 is used to supply power to the motor 29 and the top drive 26; an engine 31 is arranged on the vehicle body 1, on one side of the fuel tank 27, and the engine 31 is used to drive the generator 30 to generate electricity.

[0053] For example, as Figure 1As shown, the fuel tank 27 is placed at a specific position on the vehicle body 1 to store hydraulic oil for the entire hydraulic system. For example, the fuel tank 27 is made of high-strength metal material, has good sealing performance and anti-corrosion property, and can hold enough hydraulic oil to meet the requirements of long-term operation. The oil pump 28 is arranged adjacent to the fuel tank 27 and is connected to the fuel tank 27 through a pipeline. The motor 29 is drivingly connected to the oil pump 28. When the engine 31 starts, it drives the generator 30 to generate electricity. The electric energy generated by the generator 30 is transmitted to the motor 29, and the motor 29 then drives the oil pump 28 to operate. The oil pump 28 starts to extract hydraulic oil from the fuel tank 27, pressurizes it, and then transports it to the linear drive 25 to drive the top drive 26 to move up and down on the derrick 2. For example, during the drilling process, if the top drive 26 needs to descend for drilling operation, the motor 29 drives the oil pump 28, so that the pressurized hydraulic oil pushes the hydraulic cylinder of the linear drive 25, and the piston rod extends, thereby driving the top drive 26 to smoothly descend along the guide rail of the derrick 2. At the same time, the electric energy generated by the generator 30 also provides power for the top drive 26. The motor inside the top drive 26 drives the drill bit to rotate at a high speed under the drive of electric energy to perform drilling operations. The engine 31 keeps running continuously, stably providing power for the generator 30 to ensure the uninterrupted power supply of the entire system. For example, during the entire drilling operation process, the engine 31 always maintains a certain rotational speed, so that the generator 30 continuously outputs stable electric energy to ensure the normal operation of the top drive 26 and the operation of the motor 29 driving the oil pump 28.

[0054] The advantages of such a design are as follows: Self-sufficient power supply: Through the coordinated operation of components such as engine 31, generator 30, fuel tank 27, oil pump 28, and motor 29, the small vehicle-mounted drill forms a relatively independent power supply system. Without relying on external complex power supply facilities and hydraulic oil sources, it can work continuously and stably in remote areas or construction sites with inconvenient power supply, greatly improving the adaptability of the equipment and the autonomy of the operation. Efficient energy utilization: The engine 31 drives the generator 30 to generate electricity. The electric energy is not only used to drive the oil pump 28 to provide hydraulic power for the lifting of the top drive 26, but also directly supplies power for the drilling operation of the top drive 26, realizing efficient energy utilization. This integrated energy supply method reduces the losses in the energy conversion link, improves the energy utilization rate of the entire drill system, and reduces the operation cost. Stable power and hydraulic support: The generator 30 continuously and stably supplies power to the motor 29 and the top drive 26, ensuring the stable operation of the oil pump 28 and the reliable operation of the top drive 26. Even during long-term and high-intensity drilling operations, it can ensure the smooth rotation speed of the top drive 26 and the lifting action of the linear drive member 25, thus improving the quality and efficiency of the drilling operation. At the same time, the fuel tank 27 provides sufficient hydraulic oil for the oil pump 28, ensuring the stable operation of the hydraulic system and reducing the risk of failures caused by insufficient or unstable hydraulic oil. Compact and reasonable layout: Components such as the fuel tank 27, oil pump 28, motor 29, generator 30, and engine 31 are all arranged on the vehicle body 1 and are relatively concentrated on one side of the fuel tank 27, making the layout of the entire power system compact and reasonable. This layout not only facilitates the connection between components and the pipeline layout, reduces the pipeline length and energy loss, but also facilitates the operator to conduct daily inspections, maintenance, and troubleshooting, improving the maintainability of the equipment.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not restrictive. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A small vehicle-mounted drilling rig, characterized in that: The vehicle-mounted drilling rig comprises: Car body (1); A derrick (2) is swingably arranged on the vehicle body (1); A rotating member (3) is rotatably arranged relative to the derrick (2), and the rotation axis of the rotating member (3) is perpendicular to the swing axis of the derrick (2); A telescopic member (4) is telescopically arranged on the rotating member (3), wherein the telescopic direction of the telescopic member (4) is perpendicular to the rotation axis of the rotating member (3) and the swing axis of the derrick (2); The drill rod clamp (5) is rotatably arranged relative to the telescopic member (4), and the rotation axis of the drill rod clamp (5) is parallel to the telescopic direction of the telescopic member (4).

2. A small vehicle-mounted drilling rig according to claim 1, characterized in that: The vehicle-mounted drilling rig further comprises: A fixed rod (6) is arranged on the derrick (2), and the rotating member (3) is rotatably arranged on the fixed rod (6) relative to the derrick (2); The rotary drive member (7) is arranged on the telescopic member (4), and the drill rod clamp (5) is arranged on the rotary drive member (7) to be rotatable relative to the telescopic member (4).

3. A small vehicle-mounted drilling rig according to claim 1, characterized in that: The vehicle body (1) is provided with an operating hole (9) for passing a drill rod (8), and the vehicle-mounted drilling rig further comprises: A rotating wheel (10), the rotating wheel (10) being rotatably arranged on the derrick (2) and being located on a side of the operating hole (9) for inserting the drill rod (8), the axial direction of the rotating wheel (10) being parallel to the axial direction of the operating hole (9), the number of the rotating wheels (10) being multiple, the drill rod (8) being used to be inserted into a cavity (11) surrounded by all the rotating wheels (10), and the rotating wheel (10) being used to drive the drill rod (8) to rotate after being rotated.

4. A small vehicle-mounted drilling rig according to claim 3, characterized in that: The vehicle-mounted drilling rig also includes: A positioning cover (12) is arranged on the derrick (2), the number of the positioning covers (12) is two, the two positioning covers (12) are symmetrically arranged on both sides of the axis of the operating hole (9), each positioning cover (12) is rotatably connected to the two rotating wheels (10), and the drill rod (8) is used to pass through the positioning cover (12); A positioning seat (13), the positioning seat (13) being rotatably arranged on the derrick (2), the axis of the positioning seat (13) being coincident with the axis of the operating hole (9), and the positioning cover (12) being arranged on the positioning seat (13); A telescopic mechanism (14), wherein the telescopic direction of the telescopic mechanism (14) is perpendicular to the axial direction of the rotating wheel (10), the fixed end of the telescopic mechanism (14) is connected to the positioning seat (13), the extended end of the telescopic mechanism (14) is located between two adjacent rotating wheels (10), the number of the telescopic mechanisms (14) is at least two, and after all the telescopic mechanisms (14) are extended, they are used to clamp the drill rod (8) and drive the drill rod (8) to rotate by means of the rotation of the positioning seat (13).

5. A small vehicle-mounted drilling rig according to claim 4, characterized in that: The positioning seat (13) has an arc-shaped side surface (15), and the arc-shaped side surface (15) is coaxially arranged with the positioning seat (13). The vehicle-mounted drilling rig further comprises: a clamping plate (16), the clamping plate (16) being connected to the extended end of the telescopic mechanism (14) and being located between two adjacent rotating wheels (10); after the telescopic mechanism (14) is extended, the clamping plate (16) is used to contact the drill rod (8); An arc-shaped rack (17), wherein the arc-shaped rack (17) is arranged on the arc-shaped side surface (15); A tooth plate (18), the tooth plate (18) being slidably disposed on the derrick (2) and being located outside the circular arc-shaped rack (17), the tooth plate (18) being meshed with the circular arc-shaped rack (17), and being used to drive the circular arc-shaped rack (17) and the positioning seat (13) to rotate after the tooth plate (18) slides.

6. A small vehicle-mounted drilling rig according to claim 5, characterized in that: The vehicle-mounted drilling rig also includes: A swing arm (19) is swingably arranged on the vehicle body (1), located above the operating hole (9) and below the positioning cover (12), wherein the swing axis of the swing arm (19) is perpendicular to the swing axis of the derrick (2); An automatic clamping member (20) is swingably disposed on the swing arm (19), the swing axis of the automatic clamping member (20) being parallel to the swing axis of the swing arm (19), and the automatic clamping member (20) having inclined clamping teeth (21); A limiting member (22) is arranged on the vehicle body (1) and is located on one side of the automatic clamping member (20), and is used to limit the position of the automatic clamping member (20); The swing arm (19), the automatic clamping member (20) and the limit member (22) are each provided in two pieces and are symmetrically distributed on both sides of the operating hole (9). After the two clamping teeth (21) contact the drill rod (8), they gradually approach each other and clamp the drill rod (8).

7. A small vehicle-mounted drilling rig according to claim 3, characterized in that: The surface of the rotating wheel (10) is provided with an anti-skid convex ring (23), and there are a plurality of the anti-skid convex rings (23), and all the anti-skid convex rings (23) on the same rotating wheel (10) are arranged at intervals along the axial direction of the rotating wheel (10).

8. The small vehicle-mounted drilling rig according to claim 5, characterized in that: The side of the clamping plate (16) facing the drill rod (8) is provided with an anti-slip convex strip (24), and the anti-slip convex strip (24) is provided in plurality, and all the anti-slip convex strips (24) on the same clamping plate (16) are arranged at intervals along the length direction of the drill rod (8).

9. The small vehicle-mounted drilling rig according to claim 1, characterized in that: The vehicle-mounted drilling rig also includes: A linear drive member (25) is arranged on the derrick (2), and the linear drive member (25) has an output end; A top drive (26) is lifted and disposed on the derrick (2) and is connected to the output end of the linear drive member (25).

10. A small vehicle-mounted drilling rig according to claim 9, characterized in that: The vehicle-mounted drilling rig also includes: An oil tank (27) is arranged on the vehicle body (1); An oil pump (28) is arranged on the vehicle body (1) and is located on one side of the oil tank (27); the oil tank (27) and the oil pump (28) are connected via a pipeline; A motor (29) is arranged on the vehicle body (1) and is located on one side of the oil tank (27); the motor (29) is drivingly connected to the oil pump (28); a generator (30) disposed on the vehicle body (1) and located on one side of the oil tank (27), the generator (30) being used to supply power to the motor (29) and the top drive (26); An engine (31) is arranged on the vehicle body (1) and is located on one side of the oil tank (27); the engine (31) is used to drive the generator (30) to generate electricity.

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