A rod delivery device for a drilling rig

Abstract

The present application relates to the technical field of drilling equipment, and discloses a rod feeding device for a drilling machine, which comprises a seat body for being mounted on a vehicle body, a clamping assembly comprising a clamping driving element, a first clamping element and a second clamping element, the clamping driving element being mounted on the seat body, the first clamping element and the second clamping element being oppositely arranged and connected with the clamping driving element, and the clamping driving element being capable of driving the first clamping element and the second clamping element to approach or move away from each other so as to tightly hold or release a drill rod. The seat body is used for being mounted on the vehicle body, so that the whole rod feeding device can move with the vehicle body, and the moving convenience and operation flexibility of the whole rod feeding device are improved. The first clamping element and the second clamping element are used for stably clamping the drill rod, so that the drill rod is prevented from shaking during the rod feeding process, the difficulty and risk coefficient of rod feeding and installation splicing are reduced, and the rod feeding efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of drilling equipment, and more specifically to a rod feeding device for a drilling rig. Background Technology

[0002] A drilling rig is a device used for drilling, borehole drilling, and sampling underground or on the surface. During drilling operations, the drill rod feeding structure plays a crucial role. Since the depth of the hole to be drilled is generally greater than the length of the drill rod, the drill rods need to be connected sequentially during the drilling process. After reaching the drilling depth, the drill rods need to be disassembled sequentially to complete the drilling.

[0003] Large drilling rigs have large diameters, lengths, and weights in their drill rods. Replacing drill rods is usually done using cranes. Since crane operations typically involve lifting and hoisting large drilling rig drill rods using hooks and wire ropes, the drill rods tend to sway during the hoisting process. This makes it difficult to maintain stable control of the drill rods, resulting in high difficulty and risk in rod delivery and installation, as well as low delivery efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a rod feeding device for drilling rigs to solve the problems of large drilling rigs shaking during hoisting, making it difficult to stabilize and control the large drilling rig rods, resulting in high difficulty and risk of rod feeding and installation splicing, as well as low rod feeding efficiency.

[0005] In a first aspect, this application discloses a rod feeding device for a drilling rig, comprising: A mounting base, used for mounting on a vehicle body; The clamping assembly includes a clamping drive, a first clamping member, and a second clamping member, wherein the clamping drive is mounted on the base; the first clamping member and the second clamping member, which are disposed opposite to each other, are both connected to the clamping drive. The clamping drive can move the first clamping member and the second clamping member closer or further apart to grip or release the drill rod.

[0006] Beneficial effects: The base is mounted on the vehicle body, allowing the entire rod feeding device to move with the vehicle, improving the mobility and operational flexibility of the entire device. The first and second clamping components provide stable clamping for the drill rod, preventing it from wobbling during feeding, reducing the difficulty and risk of feeding and installation, and improving feeding efficiency. The base not only provides a stable mounting foundation for the entire clamping assembly, ensuring its structural stability during operation and reliable clamping action, but also, through its integration with the vehicle body, further guarantees the smooth operation of the rod feeding process.

[0007] In one alternative embodiment, the clamping assembly further includes: A housing is disposed on the base; The first clamp body has a first mounting part, a second mounting part and a third mounting part, the first mounting part is fixedly connected to the first clamping member, and the second mounting part is hinged to the inner wall of the housing. The second clamp body has a fourth mounting part, a fifth mounting part and a sixth mounting part. The fourth mounting part is fixedly connected to the second clamping member, and the fifth mounting part is hinged to the inner wall of the housing. The clamping drive is connected to the third mounting part and the sixth mounting part respectively. The clamping drive can drive the third mounting part and the sixth mounting part to move closer or further away from each other, so that the first mounting part and the fourth mounting part move further or closer to each other.

[0008] Beneficial effects: The housing provides a stable mounting and movement space for the first and second clamping bodies; the second mounting part of the first clamping body is hinged to the inner wall of the housing, and the fifth mounting part of the second clamping body is hinged to the inner wall of the housing, allowing the first and second clamping bodies to rotate flexibly around the hinge point; the first mounting part of the first clamping body is fixed to the first clamping member, and the fourth mounting part of the second clamping body is fixed to the second clamping member; the clamping drive is connected to the third mounting part of the first clamping body and the sixth mounting part of the second clamping body. When the clamping drive moves the third and sixth mounting parts closer or further apart, it can drive the first and second clamping bodies to rotate around their respective hinge points, thereby causing the first and second clamping members to move closer or further apart, realizing the clamping and releasing of the drill pipe. It can adapt to drill pipes of different sizes.

[0009] In one alternative embodiment, the clamping assembly further includes: The first block is hinged to the third mounting part, and the first block has a first guide slope; The second block is hinged to the sixth mounting part, and the second block has a second guide slope. The third block is slidably connected to the inner wall of the shell, and the third block has a third guide slope and a fourth guide slope. The third guide slope abuts against the first guide slope, and the fourth guide slope abuts against the second guide slope. The clamping drive is fixedly connected to the inner wall of the housing and connected to the third block. The clamping drive can drive the third block to move along the first direction, so as to drive the first block and the second block to move away from or towards each other.

[0010] Beneficial effects: When the clamping drive moves the third block, a guiding thrust is generated between the third guide slope and the first guide slope, and between the fourth guide slope and the second guide slope. This causes the first and second blocks to move away from or closer to each other, thereby realizing the clamping and releasing actions of the first and second clamping components. The linear motion of the clamping drive is converted into the rotation of the first and second clamping bodies, ensuring that the first and second clamping components achieve the preset clamping force and preventing the drill pipe from falling off.

[0011] In one alternative embodiment, the first guide ramp, the second guide ramp, the third guide ramp, and the fourth guide ramp all have equal angles with the horizontal plane.

[0012] Beneficial effects: Setting the angles between the first, second, third, and fourth guide inclined surfaces and the horizontal plane to be equal ensures that the magnitude and direction of the forces between the first and third guide inclined surfaces, and between the second and fourth guide inclined surfaces, are symmetrical when the third block moves. This, in turn, leads to symmetrical motion trajectories of the first and second blocks, ensuring that the rotation angles of the first and second clamping bodies remain consistent. This allows the first and second clamping components to synchronously approach or move away from the drill pipe. It also ensures that the center of the drill pipe when clamped remains consistent with the center of the device, preventing drill pipe misalignment and meeting positioning requirements during drill pipe delivery.

[0013] In one alternative embodiment, the clamping drive includes: The sleeve is fixedly connected to the third block. One end of the lead screw is inserted into the sleeve and threadedly connected to the sleeve. The first motor has its output shaft fixedly connected to the lead screw extending out of the sleeve.

[0014] Beneficial effects: During operation, the first motor drives the lead screw to rotate. Through the threaded engagement between the lead screw and the sleeve, the rotational motion of the motor is converted into the linear motion of the sleeve, which in turn drives the third block to move along the first direction, achieving the clamping action. The threaded drive features high transmission accuracy and good self-locking performance, enabling precise control of the movement distance of the third block. This allows for precise adjustment of the clamping force of the first and second clamping components, adapting to drill rods of different diameters and weights. It avoids excessively loose clamping that causes drill rod wobbling, or excessively tight clamping that damages the drill rod. Simultaneously, the self-locking performance ensures stable clamping; even if the first motor stops working, it maintains stable clamping of the drill rod, improving the safety and reliability of the device and reducing safety hazards during rod feeding.

[0015] In one alternative embodiment, the clamping assembly further includes: The slider is fixedly connected to the third block. A groove is formed on the inner wall of the housing; The slider is slidably connected to the groove.

[0016] Beneficial effects: The cooperation between the slider and the groove provides guidance and limitation for the movement of the third connecting block, ensuring that the third connecting block can move along the preset first direction and preventing it from deviating, shaking, or jamming during movement, thereby ensuring the transmission stability of the clamping assembly.

[0017] In an optional embodiment, the clamping assembly further includes an elastic element, the two ends of which are respectively connected to the first clamp and the second clamp, the first clamp and the second clamp being close to or far from each other, so that the elastic element generates a restoring force.

[0018] Beneficial effects: When the clamping drive moves the first clamp and the second clamp closer to or further away from each other to clamp the drill rod, the elastic element can act as a buffer to reduce the impact of the clamping force on the first clamp, the second clamp and the drill rod, and avoid excessive local force that could damage the components or wear the drill rod; at the same time, the reset function of the elastic element can ensure that the movement of the first clamp and the second clamp is more stable, reduce the shaking during the operation, and further improve the stability of clamping.

[0019] In one alternative implementation, a control element is also included, which is electrically connected to the first motor.

[0020] Beneficial effects: The control unit enables automated control of the first motor, which in turn controls the movement of the clamping drive unit, adjusting the clamping and releasing of the first and second clamping units. Operators no longer need to manually operate the clamping drive unit; they can control the drill pipe clamping solely through the control unit, reducing operator workload and minimizing human error.

[0021] In one alternative implementation, it further includes: The first rod is mounted on the base. The second rod has one end hinged to the first rod and the other end fixedly connected to the outer wall of the housing; The first hydraulic cylinder has its cylinder body hinged to the first rod body, and its telescopic end hinged to the second rod body.

[0022] Beneficial effects: During operation, the extension and retraction of the first hydraulic cylinder causes the second rod to rotate around its hinge point with the first rod, thereby causing the housing and the clamping assembly installed within the housing to rotate as a whole, adjusting the tilt angle and height of the clamping assembly. This allows the drill rod to be clamped to adapt to different feed angles and drilling positions, adjusting the clamping and feed angle of the drill rod without moving the entire base. In one alternative implementation, it further includes: The second motor is fixedly connected to the base body; The first shaft is fixedly connected at one end to the output shaft of the second motor; The first pulley is sleeved on the outer periphery of the first shaft and is fixedly connected to the first shaft. The second shaft is rotatably connected to the base body; The second pulley is sleeved on the outer periphery of the second shaft and is fixedly connected to the second shaft. A belt is fitted onto the first pulley and the second pulley; The turntable is fixedly connected to the second shaft and also fixedly connected to the first rod.

[0023] Beneficial effects: During operation, the second motor drives the first shaft and the first pulley to rotate, which in turn drives the second pulley and the second shaft to rotate via belt transmission, thereby driving the turntable and the first rod to rotate, so as to drive the entire clamping assembly to rotate and realize the horizontal rotation adjustment of the clamping assembly. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of a rod feeding device for a drilling rig provided in an embodiment of this application; Figure 2 A cross-sectional view of a clamping assembly in a rod feeding device for a drilling rig, provided as an embodiment of this application; Figure 3 for Figure 2 A magnified view of a portion of circle A in the center.

[0026] Explanation of reference numerals in the attached figures: 101. Base body; 2011. Sleeve; 2012. Lead screw; 2013. First motor; 202. First clamping component; 203. Second clamping component; 204. Housing; 205. First clamping body; 206. Second clamping body; 207. First block; 208. Second block; 209. Third block; 210. Slider; 211. Elastic element; 301. First rod; 302. Second rod; 303. First hydraulic cylinder; 401. Second motor; 402. First pulley; 403. Second pulley; 404. Belt; 405. Turntable. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0031] The technical solutions in the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments are only possible technical implementations of the present invention, but are not limited thereto. Other embodiments obtained by those skilled in the art in conjunction with the embodiments of the present invention without creative effort are also within the protection scope of the present invention.

[0032] The rod feeding device for drilling rigs provided in the embodiments of this application, such as... Figures 1 to 3 As shown, the device includes a base 101 and a clamping assembly. The base 101 is used to install on the vehicle body, providing a stable mounting base for the clamping assembly and enabling the entire rod feeding device to move with the vehicle body, improving mobility and operational flexibility. The clamping assembly is installed on the base 101 and can grip or release the drill rod, preventing the drill rod from shaking during feeding, reducing the difficulty and risk of feeding and installation, and improving feeding efficiency.

[0033] Specifically, such as Figure 1 As shown, the seat 101 can be made of metal, such as steel, which has high strength and stability. The seat 101 can be fixedly installed on the vehicle body using bolts or other common connectors to ensure a secure connection. The shape of the seat 101 can be designed according to the installation location on the vehicle body and actual needs; for example, it can be rectangular, circular, or other common shapes.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, the clamping assembly includes a clamping drive, a first clamping member 202, and a second clamping member 203. The first clamping member 202 and the second clamping member 203 are disposed opposite to each other and are both connected to the clamping drive. The first clamping member 202 and the second clamping member 203 can be made of materials with a certain degree of elasticity and friction, such as rubber or metal with anti-slip textures, to better grip the drill pipe. The shapes of the first clamping member 202 and the second clamping member 203 can be designed according to the shape of the drill pipe; for example, for a round drill pipe, it can be designed as an arc.

[0035] In this embodiment, the clamping drive can take various forms, such as hydraulic drive, electric drive, etc. In this embodiment, for example... Figure 3 As shown, the clamping drive includes a sleeve 2011, a lead screw 2012, and a first motor 2013. The sleeve 2011 is fixedly connected to the third block 209. One end of the lead screw 2012 is inserted into the sleeve 2011 and threadedly connected to it. The output shaft of the first motor 2013 is fixedly connected to the lead screw 2012 extending out of the sleeve 2011. When the first motor 2013 operates, it drives the lead screw 2012 to rotate. Through the threaded engagement between the lead screw 2012 and the sleeve 2011, the rotational motion of the motor is converted into the linear motion of the sleeve 2011, which in turn drives the third block 209 to move along a first direction, thereby realizing the clamping or releasing action of the first clamping member 202 and the second clamping member 203. The threaded drive features high transmission accuracy and good self-locking performance, enabling precise control of the movement distance of the third block 209. This, in turn, allows for precise adjustment of the clamping force of the first clamping member 202 and the second clamping member 203, accommodating drill rods of different diameters and weights. It prevents drill rod wobbling due to excessively loose clamping or damage due to excessively tight clamping. Simultaneously, the self-locking performance ensures stable clamping; even if the first motor 2013 stops working, it maintains stable clamping of the drill rod, improving the safety and reliability of the device and reducing safety hazards during rod feeding. The first motor 2013 can also be replaced with a stepper motor, which can more precisely control the rotation angle and number of turns of the lead screw 2012, further improving the control accuracy of the clamping force.

[0036] In this embodiment, as Figure 2As shown, the clamping assembly also includes a housing 204, a first clamping body 205, and a second clamping body 206. The housing 204 is mounted on the base 101, providing stable mounting and movement space for the first clamping body 205 and the second clamping body 206. The first clamping body 205 has a first mounting portion, a second mounting portion, and a third mounting portion. The first mounting portion is fixedly connected to the first clamping member 202, and the second mounting portion is hinged to the inner wall of the housing 204. The second clamping body 206 has a fourth mounting portion, a fifth mounting portion, and a sixth mounting portion. The fourth mounting portion is fixedly connected to the second clamping member 203, and the fifth mounting portion is hinged to the inner wall of the housing 204. This structure allows the first clamping body 205 and the second clamping body 206 to rotate flexibly around the hinge point. When the clamping drive moves the third mounting part and the sixth mounting part closer or further apart, it can drive the first clamp body 205 and the second clamp body 206 to rotate around their respective hinge points, thereby causing the first clamping member 202 and the second clamping member 203 to move further or further apart, realizing the clamping and releasing of the drill pipe, which can adapt to drill pipes of different sizes. The first clamp body 205 and the second clamp body 206 can be made of high-strength metal materials, such as alloy steel, to ensure that they will not deform or be damaged during frequent rotation.

[0037] In this embodiment, as Figure 2 As shown, the clamping assembly also includes a first block 207, a second block 208, and a third block 209. The first block 207 is hinged to the third mounting portion and has a first guide slope; the second block 208 is hinged to the sixth mounting portion and has a second guide slope; the third block 209 is slidably connected to the inner wall of the housing 204 and has a third guide slope and a fourth guide slope, the third guide slope abutting against the first guide slope, and the fourth guide slope abutting against the second guide slope. When the clamping drive moves the third block 209, a guiding thrust is generated between the third guide slope and the first guide slope, and between the fourth guide slope and the second guide slope, thereby causing the first block 207 and the second block 208 to move away from or towards each other, so as to realize the clamping and releasing actions of the first clamping member 202 and the second clamping member 203. Setting the angles between the first, second, third, and fourth guide inclined surfaces and the horizontal plane to be equal ensures that the magnitude and direction of the forces between the first and third guide inclined surfaces, and between the second and fourth guide inclined surfaces, are symmetrical when the third block 209 moves. This, in turn, causes the movement trajectories of the first block 207 and the second block 208 to be symmetrical, ensuring that the rotation angles of the first clamp 205 and the second clamp 206 remain consistent. This allows the first clamping member 202 and the second clamping member 203 to synchronously approach or move away from the drill rod, ensuring that the center of the drill rod when clamped remains consistent with the center of the device, preventing drill rod offset and meeting the positioning requirements during drill rod delivery. The first block 207, the second block 208, and the third block 209 can be made of wear-resistant metal materials, such as stainless steel, to reduce wear during the guiding process.

[0038] In this embodiment, as Figure 2 shown, the clamping assembly further includes a slider 210 and a chute. The slider 210 is fixedly connected to the third connecting block, the chute is formed on the inner wall of the housing 204, and the slider 210 is slidably connected to the chute. The cooperation between the slider 210 and the chute provides guidance and limitation for the movement of the third connecting block, ensuring that the third connecting block can move along a preset first direction, avoiding deviation, shaking or jamming during the movement, and thus guaranteeing the transmission stability of the clamping assembly. The slider 210 can be made of a material with a low friction coefficient such as polytetrafluoroethylene to reduce the friction force with the chute and improve the smoothness of the movement.

[0039] In this embodiment, as Figure 2 shown, the clamping assembly further includes an elastic member 211, and its two ends are respectively connected to the first clamping body 205 and the second clamping body 206. When the clamping driving member drives the first clamping body 205 and the second clamping body 206 to approach or move away from the clamped drill pipe, the elastic member 211 can play a buffering role, alleviating the impact of the clamping force on the first clamping body 205, the second clamping body 206 and the drill pipe, and avoiding component damage or drill pipe wear caused by excessive local stress; at the same time, the resetting effect of the elastic member 211 can ensure that the movement of the first clamping body 205 and the second clamping body 206 is smoother, reducing the jitter during the action process and further improving the clamping stability. The elastic member 211 can be a spring, and the elastic coefficient of the spring can be selected according to the actual clamping requirements.

[0040] In this embodiment, the rod feeding device further includes a control member, which is electrically connected to the first motor 2013. Through the control member, automatic control of the first motor 2013 can be achieved, and thus the action of the clamping driving member can be controlled to adjust the clamping and loosening of the first clamping member 202 and the second clamping member 203. The operator does not need to manually operate the clamping driving member and can complete the clamping control of the drill pipe only through the control member, reducing the labor intensity of the operator and reducing the human operation error. The control member can be a control panel with control buttons or a remote controller matching the rod feeding device.

[0041] In this embodiment, as Figure 2As shown, the rod feeding device also includes a first rod body 301, a second rod body 302, and a first hydraulic cylinder 303. The first rod body 301 is mounted on the base 101. One end of the second rod body 302 is hinged to the first rod body 301, and the other end is fixedly connected to the outer wall of the housing 204. The cylinder body of the first hydraulic cylinder 303 is hinged to the first rod body 301, and its telescopic end is hinged to the second rod body 302. During operation, the telescopic end of the first hydraulic cylinder 303 extends and retracts, which can drive the second rod body 302 to rotate around its hinge point with the first rod body 301. This, in turn, drives the housing 204 and the clamping assembly installed in the housing 204 to rotate as a whole, adjusting the tilt angle and height of the clamping assembly. This allows the clamped drill rod to adapt to different rod feeding angles and drilling position requirements, adjusting the clamping and feeding angle of the drill rod without moving the entire base 101. The first hydraulic cylinder 303 can be selected according to the actual workload and stroke requirements.

[0042] In this embodiment, as Figure 1 As shown, the rod feeding device also includes a second motor 401, a first shaft, a first pulley 402, a second shaft, a second pulley 403, a belt 404, and a turntable 405. The second motor 401 is fixedly connected to the base 101. One end of the first shaft is fixedly connected to the output shaft of the second motor 401. The first pulley 402 is sleeved on the outer circumference of the first shaft and fixedly connected to it. The second shaft is rotatably connected to the base 101. The second pulley 403 is sleeved on the outer circumference of the second shaft and fixedly connected to it. The belt 404 is sleeved on the first pulley 402 and the second pulley 403. The turntable 405 is fixedly connected to the second shaft and also fixedly connected to the first rod 301. During operation, the second motor 401 drives the first shaft and the first pulley 402 to rotate. The belt 404 then drives the second pulley 403 and the second shaft to rotate, which in turn drives the turntable 405 and the first rod 301 to rotate, thereby causing the entire clamping assembly to rotate and achieving horizontal rotation adjustment of the clamping assembly. The 404 belt drive has the advantages of smooth transmission and low noise, and can ensure the stable and reliable horizontal rotation of the clamping components.

[0043] In this embodiment, the rod feeding device is mounted on the vehicle body via a base 101, enabling flexible movement. The clamping drive component in the clamping assembly drives the first clamping member 202 and the second clamping member 203 to grip or release the drill rod, preventing it from swaying and improving the stability and efficiency of the feeding process. Simultaneously, the first hydraulic cylinder 303 and the second motor 401 respectively adjust the tilt angle and horizontal rotation of the clamping assembly, allowing the drill rod to adapt to different feeding angles and drilling positions. The entire device has a reasonable structure, is easy to operate, and reduces the difficulty and risk of rod feeding and installation, representing a significant improvement over traditional crane-based rod feeding methods.

[0044] In an alternative embodiment, the clamping drive is hydraulically driven. The hydraulically driven clamping drive includes components such as a hydraulic pump, a hydraulic cylinder, and oil pipes. The hydraulic pump supplies hydraulic oil to the hydraulic cylinder through the oil pipes, driving the piston of the hydraulic cylinder to move, which in turn moves the third block 209, realizing the clamping or releasing action of the first clamping member 202 and the second clamping member 203. Hydraulic drive has advantages such as high power and fast response speed, enabling faster clamping and releasing of drill pipes, and is suitable for applications requiring high rod delivery efficiency. The hydraulically driven clamping drive utilizes the pressure of the hydraulic system to drive the component movement, providing greater power and faster response speed compared to electric drive. In situations requiring rapid rod delivery, the hydraulically driven clamping assembly can more efficiently complete the clamping and releasing actions of the drill pipe, further improving the working efficiency of the rod delivery device. Simultaneously, the hydraulic system has good overload protection capabilities, protecting the device from damage during operation.

[0045] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A rod feeding device for a drilling rig, characterized in that, include: A mounting base (101) for mounting on a vehicle body; The clamping assembly includes a clamping drive, a first clamping member (202), and a second clamping member (203). The clamping drive is mounted on the base (101). The first clamping member (202) and the second clamping member (203), which are arranged opposite to each other, are both connected to the clamping drive. The clamping drive can move the first clamping member (202) and the second clamping member (203) closer or further apart to grip or release the drill rod.

2. The rod feeding device for a drilling rig according to claim 1, characterized in that, The clamping assembly further includes: A housing (204) is disposed on the base (101); The first clamp body (205) has a first mounting part, a second mounting part and a third mounting part. The first mounting part is fixedly connected to the first clamping member (202), and the second mounting part is hinged to the inner wall of the housing (204). The second clamp body (206) has a fourth mounting part, a fifth mounting part and a sixth mounting part. The fourth mounting part is fixedly connected to the second clamping member (203), and the fifth mounting part is hinged to the inner wall of the housing (204). The clamping drive is connected to the third mounting part and the sixth mounting part respectively. The clamping drive can drive the third mounting part and the sixth mounting part to move closer or further away from each other, so that the first mounting part and the fourth mounting part move further or closer to each other.

3. The rod feeding device for a drilling rig according to claim 2, characterized in that, The clamping assembly further includes: The first block (207) is hinged to the third mounting part, and the first block (207) has a first guide slope; The second block (208) is hinged to the sixth mounting part, and the second block (208) has a second guide slope; The third block (209) is slidably connected to the inner wall of the shell (204), and the third block (209) has a third guide slope and a fourth guide slope. The third guide slope abuts against the first guide slope, and the fourth guide slope abuts against the second guide slope. The clamping drive is fixedly connected to the inner wall of the housing (204) and connected to the third block (209). The clamping drive can drive the third block (209) to move along the first direction so as to drive the first block (207) and the second block (209) to move away from or closer to each other.

4. The rod feeding device for a drilling rig according to claim 3, characterized in that, The first guide ramp, the second guide ramp, the third guide ramp, and the fourth guide ramp all have the same angle with the horizontal plane.

5. The rod feeding device for a drilling rig according to claim 4, characterized in that, The clamping drive includes: The sleeve (2011) is fixedly connected to the third block (209); A lead screw (2012) is inserted into the sleeve (2011) at one end and is threadedly connected to the sleeve (2011). The first motor (2013) has its output shaft fixedly connected to the lead screw (2012) extending out of the sleeve (2011).

6. The rod feeding device for a drilling rig according to any one of claims 3-5, characterized in that, The clamping assembly further includes: The slider (210) is fixedly connected to the third block (209); A groove is formed on the inner wall of the housing (204); The slider (210) is slidably connected to the groove.

7. The rod feeding device for a drilling rig according to claim 6, characterized in that, The clamping assembly also includes an elastic element (211), the two ends of which are connected to the first clamp body (205) and the second clamp body (206) respectively. The first clamp body (205) and the second clamp body (206) move closer to or further away from each other so that the elastic element (211) generates a restoring force.

8. The rod feeding device for a drilling rig according to claim 5, characterized in that, It also includes a control unit that is electrically connected to the first motor (2013).

9. The rod feeding device for a drilling rig according to claim 2, characterized in that, Also includes: The first rod (301) is mounted on the base (101); The second rod (302) has one end hinged to the first rod (301) and the other end fixedly connected to the outer wall of the housing (204); The first hydraulic cylinder (303) has its cylinder body hinged to the first rod body (301) and its telescopic end hinged to the second rod body (302).

10. The rod feeding device for a drilling rig according to claim 9, characterized in that, Also includes: The second motor (401) is fixedly connected to the base (101); The first shaft is fixedly connected at one end to the output shaft of the second motor (401); The first pulley (402) is sleeved on the outer periphery of the first shaft and is fixedly connected to the first shaft. The second shaft is rotatably connected to the base (101); The second pulley (403) is sleeved on the outer periphery of the second shaft body and is fixedly connected to the second shaft body; A belt (404) is fitted onto the first pulley (402) and the second pulley (403); The turntable (405) is fixedly connected to the second shaft and to the first rod (301).

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