A drill pipe transport device

Abstract

This invention discloses a drill pipe transport device, relating to the technical field of drill pipe storage devices. It includes a transport arm with a blocking part, a first transport section, and a second transport section. Both the first and second transport sections are capable of carrying and transporting drill pipes. The blocking part is used to prevent the drill pipe on the first transport section from being transported to the second transport section. A lever mechanism is movably connected to the transport arm and can move to either a first state or a second state. In the first state, the lever mechanism is hidden inside the transport arm. In the second state, the lever mechanism can extend out of the transport arm and lift the drill pipe from the first transport section to the second transport section. Therefore, this device can improve drill pipe transport efficiency and meet the need for rapid drill pipe transport.

Description

Technical Field

[0001] This invention relates to the field of drill pipe storage devices, and in particular to a drill pipe transport device. Background Technology

[0002] In geological drilling operations, the efficiency of drill pipe transport directly affects the overall operation progress. Traditional drill pipe transport relies heavily on manual handling or crane hoisting, which is labor-intensive, inefficient, and poses safety hazards. It requires the coordinated efforts of multiple operators, and the drill pipe is prone to swaying during hoisting, posing significant safety risks. Therefore, existing technologies cannot achieve efficient, stable, and adaptive transfer of drill pipe from the drill pipe box to the catwalk, making it difficult to meet the increasingly demanding requirements for automation and safety in modern geological drilling operations. Summary of the Invention

[0003] The purpose of this invention is to provide a drill pipe transport device to solve the problems existing in the prior art, improve drill pipe transport efficiency, and meet the needs of rapid drill pipe transport.

[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides a drill pipe transport device, including a transport arm having a blocking part, a first transport section, and a second transport section. Both the first and second transport sections are capable of carrying and transporting drill pipes. The blocking part is used to prevent the drill pipes on the first transport section from being transported to the second transport section. A lever mechanism is movably connected to the transport arm. The lever mechanism is movable to a first state or a second state. In the first state, the lever mechanism is hidden inside the transport arm. In the second state, the lever mechanism can extend out of the transport arm and lift the drill pipes from the first transport section to the second transport section.

[0005] In some embodiments, the height of at least one end of the transport arm is adjustable.

[0006] In some embodiments, the blocking portion protrudes from the conveying surface of the first transport section but not from the conveying surface of the second transport section. When the lever mechanism is in the first state, the drill rod can move from the second transport section to the first transport section under the action of gravity.

[0007] In some embodiments, the lever mechanism includes a lever and a drive member, both of which are connected to the transport arm. The output of the drive member is connected to the lever and can drive the lever to extend out of or retract into the transport arm. When the lever mechanism is in the first state, the lever is retracted into the transport arm, and when the lever mechanism is in the second state, the lever extends out of the transport arm.

[0008] In some embodiments, the length of the transport arm is adjustable, and the first transport segment and / or the second transport segment has a telescopic section whose length is adjustable.

[0009] In some embodiments, the lever can be flipped around an axis to switch the lever mechanism between the first state and the second state, and the lever can be flipped at an angle of 60° to 90°.

[0010] In some embodiments, the driving component is a tilting cylinder, one end of the lever is rotatably connected to the transport arm, the cylinder body of the tilting cylinder is movably connected to the transport arm, and the piston rod of the tilting cylinder is movably connected to the lever; when the tilting cylinder is retracted, the lever is completely submerged in the groove inside the transport arm, and the top surface of the lever is not higher than the upper surface of the transport arm so that the lever mechanism is in the first state.

[0011] In some embodiments, the telescopic section includes a fixed plate, a movable plate, and a locking member. One end of the fixed plate is fixedly connected to the transport arm. The fixed plate has a groove along its length, and the movable plate is slidably connected within the groove. The locking member can lock and release the fixed plate and the movable plate.

[0012] In some embodiments, the locking member includes two locking plates, which are respectively disposed on both sides of the fixed plate and the movable plate. The locking plates are provided with corresponding locking holes, and locking pins can be inserted into the locking holes to lock the relative positions of the fixed plate and the movable plate.

[0013] In some embodiments, a buffer pad is also included, which is disposed on the surface of the first transport section to mitigate the impact when the drill pipe rolls into the drill pipe box.

[0014] The present invention achieves the following technical effects compared to the prior art: The drill pipe transport device provided by this invention realizes the transfer of drill pipe between the first transport section and the second transport section by setting a blocking part and a lever mechanism on the transport arm: when the lever mechanism is hidden inside the transport arm, the blocking part prevents the drill pipe from entering the second transport section, so that the drill pipe stays stably in the first transport section; when the lever mechanism extends and lifts the drill pipe to flip, the drill pipe passes over the blocking part and is transported to the second transport section for continued transport. Thus, the flexible switching of the drill pipe transport path is realized with a simple mechanical structure, which improves the transfer efficiency of drill pipe and reduces the need for manual intervention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the first state of the transport arm in one embodiment of the present invention; Figure 2 This is a schematic diagram of the second state of the transport arm in one embodiment.

[0017] Wherein: 1-Transport arm; 2-Blocking part; 3-First transport section; 4-Second transport section; 5-Drill rod; 6-Pulling rod mechanism; 7-Fixing plate; 8-Moving plate; 9-Locking plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] This invention provides a drill pipe transport device, such as... Figure 1-2As shown, the device includes a transport arm 1, which has a blocking part 2, a first transport section 3, and a second transport section 4. Both the first transport section 3 and the second transport section 4 can carry and transport drill rods 5. The blocking part 2 is used to prevent the drill rods 5 on the first transport section 3 from being transported to the second transport section 4. A lever mechanism 6 is movably connected to the transport arm 1. The lever mechanism 6 can move to a first state or a second state. In the first state, the lever mechanism 6 is hidden inside the transport arm 1. In the second state, the lever mechanism 6 can extend out of the transport arm 1 and lift the drill rods 5 from the first transport section 3 to flip them to the second transport section 4. The embodiment achieves the transfer of drill rod 5 between the first transport section 3 and the second transport section 4 by setting a blocking part 2 and a lever mechanism 6 on the transport arm 1: when the lever mechanism 6 is hidden inside the transport arm 1, the blocking part 2 prevents the drill rod 5 from entering the second transport section 4, so that the drill rod 5 stays stably in the first transport section 3; when the lever mechanism 6 extends and lifts the drill rod 5 to flip, the drill rod 5 passes over the blocking part 2 and is transported to the second transport section 4 to continue transporting. Thus, the flexible switching of the transport path of the drill rod 5 is achieved with a simple mechanical structure, which improves the transfer efficiency of the drill rod 5 and reduces the need for manual intervention.

[0021] In some embodiments of this example, the height of at least one end of the transport arm 1 is adjustable. This adjustable height allows the transport device to flexibly adjust the conveying height according to actual working conditions, eliminating the need for additional lifting platforms or ramps. Whether transporting goods from a ground platform to a high-level shelf or transferring goods from a high-level unloading port to a low-level collection container, smooth connection can be achieved by adjusting the height of the end of the transport arm 1, significantly improving the equipment's environmental adaptability and operational flexibility.

[0022] In some embodiments of this example, the blocking part 2 protrudes from the conveying surface of the first transport section 3 but not from the conveying surface of the second transport section 4. When the lever mechanism 6 is in the first state, the drill rod 5 can fall from the second transport section 4 to the first transport section 3 under the action of gravity. By setting the blocking part 2 to protrude only from the conveying surface of the first transport section 3 and not from the conveying surface of the second transport section 4, the drill rod 5 can smoothly fall back from the first transport section 3 to the second transport section 4 under the action of gravity, or smoothly fall back from the second transport section 4 to the first transport section 3. Bidirectional transport of the drill rod 5 can be achieved without additional drive mechanisms or manual intervention, which simplifies the equipment structure and improves the flexibility and reliability of the drill rod 5 transport.

[0023] In some embodiments of this example, the lever mechanism 6 includes a lever and a drive component, both of which are connected to the transport arm 1. The output component of the drive component is connected to the lever 5 and can drive the lever to extend or retract inside the transport arm 1. When the lever mechanism 6 is in the first state, the lever is retracted inside the transport arm 1; when the lever mechanism 6 is in the second state, the lever extends out of the transport arm 1. By directly driving the lever to extend or retract inside the transport arm 1 through the drive component, the state switching of the lever mechanism 6 is realized: in the first state, the lever is retracted inside the transport arm 1, which does not occupy extra space and does not affect the normal transport of the drill rod 5; in the second state, the lever extends out of the transport arm 1, which can promptly lift and flip the drill rod 5. Thus, with a compact structure, the automated control of the transfer of the drill rod 5 is realized, improving the transport efficiency of the drill rod 5 and enhancing the integration of the equipment.

[0024] In some embodiments of this example, the length of the transport arm 1 is adjustable. This adjustable length allows the drill pipe transport device to flexibly adjust the transport distance according to the actual distance between the drill pipe box and the catwalk, adapting to different well site layouts and operating conditions. This improves the equipment's versatility and environmental adaptability, while avoiding problems such as incomplete transfer or spatial interference caused by the length of the transport arm 1, ensuring the accuracy and stability of the drill pipe 5 transfer. The transport arm 1 system supports multi-machine collaborative operation, with a minimum configuration of two units, and can be expanded to three, four, or even more units according to actual operating conditions, achieving a side-by-side array deployment.

[0025] The first transport section 3 and / or the second transport section 4 have telescopic sections, the length of which is adjustable. The first transport section 3 and / or the second transport section 4 have telescopic sections with adjustable lengths, which allows the transport device to adjust the transport length of each section separately or simultaneously according to the actual relative position of the drill pipe box and the catwalk, so as to achieve fine adaptation of the transfer path of the drill pipe 5. It can meet the operational requirements of different well site spacing and height differences without replacing the entire transport arm 1, and further improve the modularity of the equipment and the flexibility of on-site deployment.

[0026] In some embodiments of this example, the lever can be flipped around an axis to switch the lever mechanism between the first and second states. The lever can be flipped at an angle of 60° to 90°. The lever flipping angle is limited to 60° to 90°, so that the drill rod 5 can obtain sufficient lifting height during the flipping process to smoothly pass the blocking part and enter the second transport section 4, while avoiding excessive throwing or loss of posture of the drill rod 5 due to excessive flipping angle. At the same time, the efficiency and stability of the flipping action are taken into account, ensuring the reliability and safety of the drill rod 5 transfer process.

[0027] In some embodiments of this example, the driving component is a tilting cylinder. One end of the lever is rotatably connected to the transport arm 1, the cylinder body of the tilting cylinder is movably connected to the transport arm 1, and the piston rod of the tilting cylinder is movably connected to the lever. When the tilting cylinder is retracted, the lever is completely submerged in the groove inside the transport arm 1, and the top surface of the lever is not higher than the upper surface of the transport arm 1 so that the lever mechanism 6 is in the first state. The driving component is a tilting cylinder, the cylinder body of the tilting cylinder is movably connected to the transport arm 1, and the piston rod of the tilting cylinder is movably connected to the lever, so that the lever can obtain a stable and controllable tilting driving force. The hydraulic transmission characteristics of the tilting cylinder ensure that the lever outputs a stable torque and reliable operation during the lifting and tilting of the drill pipe. At the same time, it has a large load-bearing capacity to adapt to the heavy-load working conditions of the drill pipe, and it is easy to directly connect with the hydraulic system of existing drilling equipment, simplifying the power configuration and improving the integration and field applicability of the mechanism.

[0028] In some embodiments of this example, the telescopic section includes a fixed plate 7, a movable plate 8, and a locking element. One end of the fixed plate 7 is fixedly connected to the transport arm 1. The fixed plate 7 has a groove along its length, and the movable plate 8 is slidably connected in the groove. The locking element can lock and release the fixed plate 7 and the movable plate 8. The telescopic section adopts a combination structure of the fixed plate 7, the movable plate 8, and the locking element, which makes the length adjustment and locking functions of the transport arm 1 independent and easy to operate. The movable plate 8 slides relative to the fixed plate 7 to achieve stepless telescopic adjustment. After adjustment, the relative positions of the two are quickly locked by the locking element, which effectively prevents the length change caused by the load or vibration of the drill rod 5 during transportation, ensuring that the transport arm 1 maintains a stable length in the working state, taking into account both adjustment flexibility and structural reliability.

[0029] When the telescopic section is installed on the first transport section 3, one end of the fixed plate 7 is fixedly connected to the transport arm 1, and the movable plate 8 is connected to the drill rod box, ensuring that the drill rod 5 can be stably supported on the first transport section 3 and accurately transported to the second transport section 4. When the telescopic section is installed on the second transport section 4, the fixed plate 7 is fixedly connected to the transport arm 1, and the movable plate 8 is connected to the catwalk machine. The telescopic direction of the telescopic component is consistent with the transport direction of the second transport section 4; this adapts to the change in the distance between the blocking part 2 and the entrance of the catwalk machine, ensuring that the drill rod 5, after being flipped by the lever mechanism 6, can smoothly fall into the second transport section 4 and continue to be transported to the catwalk machine.

[0030] In some embodiments of this example, the locking component includes two locking plates 9, which are respectively disposed on both sides of the fixed plate 7 and the movable plate 8. Locking holes are correspondingly provided on the locking plates 9, and locking pins can be inserted into the locking holes to lock the relative positions of the fixed plate 7 and the movable plate 8. The two locking plates 9 are respectively disposed on the fixed plate 7 and the movable plate 8. After adjustment, the locking holes are aligned, and only the locking pin needs to be inserted to achieve reliable locking. Pulling out the locking pin can unlock the lock for readjustment. The structure is simple, the cost is low, and the locking state is intuitive and controllable, which facilitates quick operation and maintenance by on-site personnel.

[0031] In some embodiments of this example, the drill pipe transport device further includes a buffer pad, which is disposed on the surface of the first transport section 3 to mitigate the impact of the drill pipe 5 rolling into the drill pipe box. The buffer pad in the drill pipe transport device effectively buffers the drill pipe 5 when it falls into or is transferred to the transport arm 1, absorbs the impact kinetic energy of the falling drill pipe, reduces the rigid collision between the drill pipe 5 and the transport arm 1, reduces surface damage to the drill pipe and structural wear of the transport arm 1, reduces operating noise, extends the service life of the equipment, and improves the safety and stability of the drill pipe transport. The buffer pad can be made of elastic and wear-resistant materials such as polyurethane, rubber, or nylon. These materials have both good buffering and energy absorption characteristics and wear and tear resistance. They can maintain stable elastic recovery ability after repeated drill pipe impacts and are not easily permanently deformed or failed due to long-term pressure. They also have the characteristics of oil resistance and aging resistance, adapting to the harsh environment of field drilling operations and reducing the replacement frequency and maintenance cost of the buffer pad.

[0032] The specific transportation process of the drill pipe transport device is as follows: The drill pipe is initially stored in the drill pipe box, which is usually located on one side of the derrick or next to the catwalk, and is used to centrally store multiple drill pipes to be used. At the start of the operation, the transport arm 1 is adjusted to the drill pipe box outlet position by means of a slewing mechanism or a moving chassis, so that the starting end of the first transport section 3 is aligned with the outlet of the drill pipe box.

[0033] The length of the first transport section 3 is adjusted according to the actual distance between the drill pipe box outlet and the blocking part. If the first transport section 3 is equipped with a telescopic section, the locking device is released, the moving plate 8 slides relative to the fixed plate 7 to the target position, and then is locked by the locking device to ensure that the transport arm 1 transport length matches the current working condition.

[0034] The drill rods are pushed out one by one from the drill rod box to the telescopic section, where the conveying surface of the telescopic section supports the drill rods 5. At this time, the lever mechanism 6 is in the first state, with the lever hidden inside the transport arm 1 and not protruding from the conveying surface of the first transport section 3. At the same time, the blocking part 2 protrudes from the conveying surface of the first transport section 3, forming a physical block on the drill rods 5, so that the drill rods 5 remain stably on the first transport section 3 and will not slip or roll to the second transport section 4 on their own.

[0035] When the drill rod 5 needs to be transferred to the catwalk machine, the drive unit switches the lever from the first state to the second state. The lever extends from inside the transport arm 1, extends above the first transport section 3, and contacts the drill rod 5. The drive unit continues to drive the lever to rotate upwards, with a rotation angle of 60° to 90°. The lever lifts the bottom of the drill rod 5, causing the drill rod 5 to gradually rise. Under the lifting action of the lever, the center of gravity of the drill rod 5 gradually rises and passes the top of the blocking part 2. At this time, the blocking part 2 no longer obstructs the drill rod.

[0036] After the drill rod 5 passes the blocking part 2, it flips and falls from the first transport section 3 to the second transport section 4 under the action of gravity and the guiding action of the lever. After the lever flips to the highest point, the drive unit drives the lever to move in the opposite direction, first returning to the extended state, and then retracting to the hidden state, returning to the first state, waiting for the next transfer operation.

[0037] If the second transport section 4 is equipped with a telescopic section, its length has been adjusted according to the distance between the blocking part 2 and the catwalk inlet before the drill pipe is transferred. The locking mechanism is released, and the moving plate 8 slides relative to the fixed plate 7 to the target position, aligning the end of the telescopic section with the catwalk inlet. Then, the locking mechanism is used to lock the section, ensuring that the drill pipe 5, after being flipped and dropped from the first transport section 3, can be accurately supported on the second transport section 4.

[0038] After the drill pipe 5 falls into the second transport section 4, the transport surface of the second transport section 4 carries the drill pipe 5. Under the action of gravity, the drill pipe 5 rolls along the second transport section 4 towards the catwalk and falls into the entrance of the catwalk. The catwalk lifts the drill pipe to the center position of the wellhead, completing the entire transfer process of the drill pipe 5 from the drill pipe box to the wellhead.

[0039] During drill pipe transportation, buffer pads are placed at key contact points between the drill pipe and the transport arm, such as the initial contact point where the drill pipe falls into the first transport section, the connection area between the first transport section 3 and the second transport section 4, and near the blocking part 2. When the drill pipe 5 falls or flips, the buffer pads absorb the impact kinetic energy, reduce rigid collisions between the drill pipe 5 and the transport arm 1, protect the threads and pipe body of the drill pipe 5 from damage, reduce operating noise, and extend the service life of the transport arm.

[0040] When reverse transport of drill rod 5 is required, for example, to return drill rod 5 from the catwalk or a replaced drill rod 5 to the drill rod box, the transport arm 1 is adjusted to the corresponding position, and the lever mechanism 6 is in the first state. Drill rod 5 enters the second transport section 4 from the catwalk and rolls along the second transport section 4 towards the blocking part 2. Since the lever is hidden inside the transport arm 1, the blocking part 2 only protrudes from the conveying surface of the first transport section 3 and not from the conveying surface of the second transport section 4. Under the action of gravity, the drill rod 5 can smoothly pass over the blocking part 2 and fall onto the first transport section 3, and then continue to roll along the first transport section 3 to the drill rod box or the recycling area, completing the reverse flow transport of the drill rod.

[0041] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A drill pipe transport device, characterized in that: The system includes a transport arm, which has a blocking part, a first transport section and a second transport section. Both the first transport section and the second transport section are capable of carrying and transporting drill pipes. The blocking part is used to prevent the drill pipes on the first transport section from being transported to the second transport section. A lever mechanism is movably connected to the transport arm. The lever mechanism can move to a first state or a second state. In the first state, the lever mechanism is hidden inside the transport arm. In the second state, the lever mechanism can extend out of the transport arm and lift the drill rod of the first transport section to the second transport section.

2. The drill pipe transport device according to claim 1, characterized in that: The height of at least one end of the transport arm is adjustable.

3. The drill pipe transport device according to claim 1, characterized in that: The blocking part protrudes from the conveying surface of the first transport section but not from the conveying surface of the second transport section. When the lever mechanism is in the first state, the drill rod can move from the second transport section to the first transport section under the action of gravity.

4. The drill pipe transport device according to claim 1, characterized in that: The lever mechanism includes a lever and a drive member. Both the lever and the drive member are connected to the transport arm. The output of the drive member is connected to the lever and can drive the lever to extend out of or retract into the transport arm. When the lever mechanism is in the first state, the lever is retracted into the transport arm. When the lever mechanism is in the second state, the lever extends out of the transport arm.

5. The drill pipe transport device according to claim 1, characterized in that: The length of the transport arm is adjustable, and the first transport section and / or the second transport section has a telescopic section whose length is adjustable.

6. The drill pipe transport device according to claim 4, characterized in that: The lever can be flipped around an axis to switch the lever mechanism between the first state and the second state, and the lever can be flipped at an angle of 60° to 90°.

7. The drill pipe transport device according to claim 4, characterized in that: The driving component is a tilting cylinder. One end of the lever is rotatably connected to the transport arm. The cylinder body of the tilting cylinder is movably connected to the transport arm. The piston rod of the tilting cylinder is movably connected to the lever. When the tilting cylinder is retracted, the lever is completely submerged in the groove inside the transport arm. The top surface of the lever is not higher than the upper surface of the transport arm so that the lever mechanism is in the first state.

8. The drill pipe transport device according to claim 5, characterized in that: The telescopic section includes a fixed plate, a movable plate, and a locking member. One end of the fixed plate is fixedly connected to the transport arm. The fixed plate has a groove along its length. The movable plate is slidably connected to the groove. The locking member can lock and release the fixed plate and the movable plate.

9. The drill pipe transport device according to claim 8, characterized in that: The locking component includes two locking plates, which are respectively disposed on both sides of the fixed plate and the movable plate. The locking plates are provided with corresponding locking holes, and the locking pin can be inserted into the locking holes to lock the relative positions of the fixed plate and the movable plate.

10. The drill pipe transport device according to claim 1, characterized in that: It also includes a buffer pad, which is disposed on the surface of the first transport section to mitigate the impact when the drill pipe rolls into the drill pipe box.

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