A deep well drill pipe conveying device

Abstract

This invention relates to the field of oil extraction technology, specifically a deep well drill pipe conveying device. It includes a material box with sliding openings evenly spaced along its height on both side walls. Each sliding opening contains a lifting plate. A first lead screw is located at the bottom of both sides of the material box, with a first slider threaded onto the first lead screw. A second lead screw is vertically mounted on the first slider, and a support plate is threaded onto the second lead screw. After the third lead screw drives the second slider to slide, it drives the second lead screw to continue rotating. The second lead screw drives the support plate to lift the lifting plate upwards. Simultaneously, the lifting plate pushes the drill pipe upwards, filling the position of the drill pipe already gripped and discharged by the gripping component. When the gripping component grips the drill pipe again, it remains at the same height for gripping operations, instead of extending downwards to grip the drill pipe. This eliminates the need for long-stroke vertical movement, naturally saving drill pipe conveying and transfer time and improving the overall efficiency of oil drilling operations.

Description

Technical Field

[0001] This invention relates to the field of oil extraction technology, specifically a deep well drill pipe conveying device. Background Technology

[0002] Oil drilling is a crucial step in the oil extraction process. It uses drilling rigs and the rotation and pressure of the drill bit to break up underground rocks, creating a wellbore that leads from the surface to the oil-bearing formation, facilitating subsequent oil extraction operations. During the drilling process, the length of the drill pipe is continuously extended to drill deeper into the ground.

[0003] With the continuous development of oil drilling technology, automated drilling operations have gradually emerged, improving drilling efficiency. Among these, drill pipe delivery is a crucial link in drilling operations, and its delivery efficiency directly affects the overall drilling efficiency.

[0004] Currently, there are already patents that have optimized the drill pipe conveying process. For example, CN119754713A discloses a drill pipe conveying device. In this device, the horizontal movement of the drill pipe is achieved by the cooperation of a power component, a slide block, a rack and pinion, and a slide rail, as well as a crossbeam. The vertical movement of the drill pipe is achieved by the cooperation of a lifting outer cylinder and a lifting inner cylinder. Each time a drill pipe is picked up, the clamping claw is first moved horizontally to above the drill pipe to be picked up, and then lowered to a designated height by vertical movement. During transfer, the height of the drill pipe is first raised, then moved horizontally, and finally lowered. When picking up again, the clamping claw needs to move horizontally again, and then vertically. As the number of drill pipes decreases, the stroke of the clamping claw increases with each vertical movement, which inevitably increases the time spent on vertical movement. There is still room for optimization in this design.

[0005] Therefore, a deep well drill pipe conveying device is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the deep well drill pipe conveying device of the present invention includes a plate car for conveying drill pipe, a material box without end cover is provided on the plate car, and sliding openings are evenly opened on both sides of the material box along its height direction. Vertical partitions are symmetrically arranged on both sides of each sliding opening, and the partitions are fixed to the inner side wall of the material box.

[0008] Each of the aforementioned sliding openings is equipped with a lifting plate. The end of each lifting plate protrudes out of the material box along the sliding opening. A first screw is provided at the bottom of both sides of the material box. A first slider is threadedly connected to the first screw. A second screw is vertically arranged on the first slider. A support plate is threadedly connected to the second screw. The support plate is used to lift the lifting plate upward.

[0009] A crossbeam is installed across the top of the material box. A gripping mechanism is installed in the middle of the crossbeam. A hydraulic rod is installed at the end of the crossbeam. A slider is fixed to the bottom cylinder of the hydraulic rod. The slider slides along the edge of the top of the material box. A screw is threaded onto the slider and is rotatably connected to a support column on the top of the material box.

[0010] Preferably, the gripping mechanism includes a base block mounted on a crossbeam, with two hydraulic rods symmetrically arranged on the lower end of the base block. The upper cylinders of the two hydraulic rods are rotatably connected to the lower surface of the base block, and the output ends of the two hydraulic rods are rotatably connected to fixed lugs.

[0011] Two arc-shaped clamps are symmetrically arranged below the base block. Each clamp has a fixed lug on its outer side wall, and a base plate is rotatably connected to the end of each clamp. The base plate extends upward and is fixed to the side wall of the base block.

[0012] Preferably, the crossbeam is provided with a drive assembly for driving the base block to rotate. The drive assembly includes a drive motor fixedly connected to the crossbeam, a drive gear fixedly connected to the output end of the drive motor, the drive gear meshing with a driven gear ring, the driven gear ring being coaxially arranged with the crossbeam, and the driven gear ring being fixedly connected to the end face of the base block.

[0013] Preferably, the trolley is equipped with a displacement assembly for driving the material box to move, and the displacement assembly includes a fixing block located at the middle of the bottom of the material box, and a No. 4 lead screw is threadedly connected to the fixing block, and the end of the No. 4 lead screw is rotatably connected to the trolley.

[0014] The material box is symmetrically provided with sliding plates on both sides of the bottom. The sliding plates are arranged along the length of the material box, and the bottom of the sliding plates is slidably connected to guide rails, which are fixed to the trolley.

[0015] Preferably, the top two sides of the material box are provided with guide plates for the upper end of the second lead screw to slide. The guide plates are along the length of the material box, and a strip hole is opened on the guide plate. A third slider is provided in the strip hole, and the upper end of the second lead screw is rotatably connected inside the third slider.

[0016] Preferably, a horizontal plate is provided between the two support columns in the length direction of the top of the material box, and a sliding hole is opened in the length direction of the horizontal plate. The horizontal plate is placed on the upper surface of the cylinder of the first hydraulic rod, and the output end of the first hydraulic rod passes through the sliding hole upward.

[0017] Preferably, the upper end of the adjacent partition is flared, and the lower side of the upper end of the adjacent partition is constricted.

[0018] Preferably, a groove is provided at the bottom of each of the second sliders, and the top edge of the material box is embedded in the groove.

[0019] Preferably, a groove is formed on the upper surface of each of the pallets, and the end of the lifting plate is embedded in the groove.

[0020] Preferably, a clearance opening is provided at the middle of the rear end of the flatbed cart.

[0021] The advantages of this invention are:

[0022] 1. In this invention, after the No. 3 lead screw drives the No. 2 slider to slide, the No. 2 lead screw is driven to continue rotating. The No. 2 lead screw drives the support plate to lift the lifting plate upward. At the same time, the lifting plate pushes the drill rod upward and fills the position of the drill rod that has been grabbed and discharged by the gripping component. When the gripping component grabs the drill rod again, the gripping component is still at the same height to perform the gripping operation, instead of extending downward to grab the drill rod. There is no need for long-stroke vertical movement, which naturally saves the drill rod transportation and transfer time and improves the overall operation efficiency of oil drilling.

[0023] 2. In this invention, the upper ends of two adjacent partitions are flared to increase the entrance for placing the drill rod between the two adjacent partitions, which facilitates the filling of the drill rod; and the lower ends of the upper ends of two adjacent partitions are constricted to center the axis of the drill rod at the top of the material box between the two adjacent partitions, which facilitates the gripping, conveying and removing of the material by the gripping component. Attached Figure Description

[0024] Figure 1 This is a first-view perspective perspective view of the deep well drill pipe conveying device of the present invention;

[0025] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 This is a second-view perspective perspective view of the deep well drill pipe conveying device of the present invention;

[0027] Figure 4 This is a third-view perspective view of the deep well drill pipe conveying device in this invention;

[0028] Figure 5 This is a front view of the deep well drill pipe conveying device of the present invention;

[0029] Figure 6 This is a cross-sectional view of the deep well drill pipe conveying device of the present invention;

[0030] Figure 7 This is a schematic diagram illustrating the fit between the partition plate and the drill rod in this invention;

[0031] Figure 8 This is a schematic diagram illustrating the cooperation between the lifting plate and the drill rod in this invention;

[0032] Figure 9 This is a perspective view of the cooperation between the sliding plate and the guide rail in this invention;

[0033] Figure 10 This is a perspective view of the interaction between the gripping component and the crossbeam in this invention;

[0034] Figure 11 This is a side view showing the interaction between the gripping component and the crossbeam in this invention;

[0035] Figure 12 This is a cross-sectional view of the grasping component in this invention;

[0036] Figure 13 This is a perspective view of the flatbed cart in this invention;

[0037] Figure 14 This is a first-view perspective perspective view of the material box in this invention;

[0038] Figure 15 This is a second-view perspective perspective view of the material box in this invention;

[0039] In the diagram: 101. Drill rod; 1. Cart; 2. Material box; 3. Sliding mouth; 4. Partition plate; 5. Lifting plate; 6. Lead screw No. 1; 7. Slider No. 1; 8. Lead screw No. 2; 9. Support plate; 10. Crossbeam; 11. Hydraulic rod No. 1; 12. Slider No. 2; 13. Lead screw No. 3; 14. Support column; 15. Base block; 16. Hydraulic rod No. 2; 17. Fixed lug; 18. Clamping plate; 19. Base plate; 20. Drive motor; 21. Drive gear; 22. Driven gear ring; 23. Fixed block; 24. Lead screw No. 4; 25. Slide plate; 26. Guide rail; 27. Guide plate; 28. Strip hole; 29. ​​Slider No. 3; 30. Horizontal plate; 31. Sliding hole; 32. Sliding groove; 33. Groove; 34. Clearance opening. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0041] Reference Figures 1-9 A deep well drill pipe conveying device includes a trolley 1 for conveying drill pipe 101, a material box 2 without end caps on the trolley 1, and sliding openings 3 evenly opened on both sides of the material box 2 along its height direction. Vertical partitions 4 are symmetrically arranged on both sides of each sliding opening 3, and the partitions 4 are fixed to the inner side wall of the material box 2.

[0042] Each of the sliding openings 3 is provided with a lifting plate 5. The end of each lifting plate 5 protrudes out of the material box 2 along the sliding opening 3. A first screw 6 is provided at the bottom of both sides of the material box 2. A first slider 7 is threadedly connected to the first screw 6. A second screw 8 is vertically arranged on the first slider 7. A support plate 9 is threadedly connected to the second screw 8. The support plate 9 is used to lift the lifting plate 5 to move upward.

[0043] A crossbeam 10 is installed across the top of the material box 2. A gripping mechanism is installed in the middle of the crossbeam 10. A hydraulic rod 11 is installed at the end of the crossbeam 10. A slider 12 is fixed to the bottom cylinder of the hydraulic rod 11. The slider 12 slides along the top edge of the material box 2. A screw 13 is threaded onto the slider 12. The screw 13 is rotatably connected to the support column 14 installed at the top of the material box 2.

[0044] In this embodiment, the designed lead screw 6, lead screw 8, and lead screw 13 can all be driven to rotate by a geared motor, and the geared motor can be controlled by a PLC to realize the direction and speed control adjustment of lead screw 6, lead screw 8, and lead screw 13.

[0045] The designed flatbed cart 1 can be a vehicle body with a power source or a vehicle body without a power source. If it is a vehicle body with a power source, that is, each wheel of the flatbed cart 1 is a hub motor, which is driven by electricity to rotate and realize the movement of the flatbed cart 1; if it is a vehicle body without a power source, that is, the flatbed cart 1 is towed by a tractor.

[0046] The partition 4 is designed to neatly stack the drill rods 101 inside the material box 2, facilitating the gripping mechanism's grasping of the drill rods 101. Figures 3-6 As shown, one end of the drill rod 101 is placed between adjacent partitions 4, and the spacing between two adjacent partitions 4 is adapted to the outer diameter of the end of the drill rod 101.

[0047] The specific operation of this deep well drill pipe delivery device is as follows:

[0048] First, drive screw 6 to rotate, which moves slider 7 to below a lifting plate 5 and pauses. Then, drive screw 8 to rotate, which moves pallet 9 upward. During this upward movement, pallet 9 lifts lifting plate 5, which in turn lifts drill rod 101 above. The end of drill rod 101 moves upward along two adjacent partitions 4. At this point, drill rod 101 at the top of pallet 9 is lifted to the top of material box 2, which is the height that the gripping assembly can hold. Then, operate the gripping assembly to hold drill rod 101. Next, drive hydraulic rod 11, which moves the gripping assembly and drill rod 101 upward. Then, drive screw 13 to rotate. 3. The second slider 12 is driven to slide along the top of the material box 2, and the drill rod 101 is moved to the unloading position. At this time, the transfer of the drill rod 101 is completed. After the third lead screw 13 drives the second slider 12 to slide, the second lead screw 8 is driven to continue to rotate. The second lead screw 8 drives the support plate 9 to lift the lifting plate 5 upward. At the same time, the lifting plate 5 pushes the drill rod 101 upward and fills the position of the drill rod 101 that has been grabbed and unloaded by the gripping component. When the gripping component grabs the drill rod 101 again, the gripping component is still at the same height to perform the gripping operation, instead of extending downward to grab the drill rod 101. There is no need for long-stroke vertical movement, which naturally saves the transfer time of the drill rod 101 and improves the overall efficiency of oil drilling operations.

[0049] Reference Figures 1-12 The gripping mechanism includes a base block 15 set on the crossbeam 10. Two second hydraulic rods 16 are symmetrically arranged on the lower end of the base block 15. The upper cylinders of the two second hydraulic rods 16 are rotatably connected to the lower surface of the base block 15. The output ends of the two second hydraulic rods 16 are rotatably connected to fixed lugs 17.

[0050] Two arc-shaped clamping plates 18 are symmetrically arranged below the base block 15. A fixing lug 17 is fixedly connected to the outer side wall of each clamping plate 18. A base plate 19 is rotatably connected to the end of each clamping plate 18. The base plate 19 extends upward and is fixedly connected to the side wall of the base block 15.

[0051] In this embodiment, the designed gripping component uses hydraulic pressure to drive the clamping plate 18 to deflect and clamp the drill rod 101. The clamping plate 18 is arc-shaped and can adhere to the surface of the drill rod 101, tightly wrapping and clamping it. Specifically, the upper edges of the two symmetrically arranged clamping plates 18 are rotatably connected to the base plate 19. The second hydraulic rod 16 is connected to an external oil pump through a hose. When the output end of the second hydraulic rod 16 extends, it drives the two clamping plates 18 to move closer to each other and clamp the drill rod 101. When the output end of the second hydraulic rod 16 retracts and resets, it drives the two clamping plates 18 to open and release the drill rod 101.

[0052] The gripping component works in conjunction with the first hydraulic rod 11. The first hydraulic rod 11 is used to move the gripping component up and down. When the gripping component grips the drill rod 101, the first hydraulic rod 11 drives the gripping component to move down, so that the two open clamping plates 18 approach the drill rod 101, and the inner top surface of the clamping plates 18 is attached to the surface of the drill rod 101. When the output end of the second hydraulic rod 16 quickly extends and drives the two clamping plates 18 to approach each other and clamp the drill rod 101, the first hydraulic rod 11 also drives the gripping component to move up at the same time. That is, while the clamping plates 18 are clamping the drill rod 101, the first hydraulic rod 11 is performing the upward movement of the gripping component. During the time period when the first hydraulic rod 11 drives the gripping component to move up, the clamping plates 18 are operated to clamp the drill rod 101, making full use of the time interval and improving efficiency.

[0053] Reference Figures 1-12 The crossbeam 10 is provided with a drive assembly for driving the base block 15 to rotate. The drive assembly includes a drive motor 20 fixedly connected to the crossbeam 10. The output end of the drive motor 20 is fixedly connected to a drive gear 21. The drive gear 21 meshes with a driven gear ring 22. The driven gear ring 22 is coaxially arranged with the crossbeam 10 and is fixedly connected to the end face of the base block 15.

[0054] The base block 15 is rotatably connected to the crossbeam 10. The drive assembly is used to drive the gripping assembly to deflect around the axis of the crossbeam 10. The drive motor 20 in the drive assembly can also be controlled by a PLC to precisely control the deflection angle of the gripping assembly. When the gripping assembly in a vertical position grips the drill rod 101, the first hydraulic rod 11 pushes the gripping assembly and the drill rod 101 upwards. Then, it is pushed by the second lead screw 8 to move to one end of the material box 2. Then, the drive assembly is activated. The drive motor 20 drives the active gear to rotate. The active gear 21 rubs the driven gear ring 22 to rotate. The driven gear ring 22 drives the base block 15 to deflect around the crossbeam 10, so that the drill rod 101 deflects around the axis of the crossbeam 10 to a position above one end of the material box 2, so that the drill rod 101 is away from the upper end of the material box 2, freeing up more operating space and making it easier to remove the drill rod 101 from the gripping assembly.

[0055] Reference Figures 1-14 The trolley 1 is equipped with a displacement assembly for driving the material box 2 to move. The displacement assembly includes a fixing block 23 located at the middle of the bottom of the material box 2. A No. 4 lead screw 24 is threaded onto the fixing block 23. The end of the No. 4 lead screw 24 is rotatably connected to the trolley 1.

[0056] The material box 2 has symmetrically arranged sliding plates 25 on both sides of the bottom. The sliding plates 25 are arranged along the length of the material box 2. The bottom of the sliding plates 25 is slidably connected to guide rails 26, and the guide rails 26 are fixedly connected to the trolley 1.

[0057] Initially, the material box 2 is positioned at the front of the trolley 1, and the center of gravity of the drill rod 101 is concentrated on the front side of the trolley 1. When the trolley 1 is pulled by the tractor, it can move smoothly. Multiple rows of drill rods 101 are placed inside the material box 2. After the drill rods 101 near the rear of the trolley 1 are removed one by one, the travel distance of the drill rods 101 after being removed from the gripping assembly needs to be considered. Therefore, the material plate is slidably connected to the trolley 1. After a row of drill rods 101 near the rear of the trolley 1 is removed from the material box 2, the material box 2 is moved towards the rear of the trolley 1 by a distance equal to the diameter of one drill rod 101 through the displacement assembly. This ensures that the subsequent travel distance of each drill rod 101 after being removed from the gripping assembly is similar, reducing the travel distance of the drill rods 101, improving efficiency, and ensuring the consistency of the conveying process of all drill rods 101, thus enabling stable oil drilling operations.

[0058] Reference Figures 1-15 The top two sides of the material box 2 are provided with guide plates 27 for sliding the upper end of the second lead screw 8. The guide plates 27 are along the length of the material box 2. The guide plates 27 have strip holes 28. The strip holes 28 are provided with a third slider 29. The upper end of the second lead screw 8 is rotatably connected inside the third slider 29.

[0059] The guide plate 27 is used to constrain the swing of the second lead screw 8, improve the stable connection between the second lead screw 8 and the support plate 9, so that the support plate 9 can stably lift the lifting plate 5; the upper end of the second lead screw 8 is rotatably connected to the third slider 29, which is slidably connected in the strip hole 28. The strip hole 28 constrains the swing of the second lead screw 8 in the front, back and left and right, so that the second lead screw 8 can stably lift the support plate 9, improving the upward stability of each row of drill rods 101.

[0060] Reference Figures 1-3 A horizontal plate 30 is provided between two support columns 14 in the length direction at the top of the material box 2. A sliding hole 31 is opened on the horizontal plate 30 in the length direction. The horizontal plate 30 is placed on the upper surface of the cylinder of the first hydraulic rod 11. The output end of the first hydraulic rod 11 passes through the sliding hole 31 upward.

[0061] The support column 14, together with the cross plate 30, is used to constrain the stability of the first hydraulic rod 11 on the cross beam 10, the gripping assembly and the drill rod 101. Specifically, the output end of the first hydraulic rod 11 is slidably connected in the sliding hole 31, which can constrain the swing of the first hydraulic rod 11 and improve the stability of the drill rod 101 during the gripping and conveying process, that is, the stability of the gripping assembly together with the drill rod 101 moving along the length of the material box 2.

[0062] Reference Figure 7 The upper end of the adjacent partition 4 is flared, and the lower side of the upper end of the adjacent partition 4 is constricted.

[0063] Considering the subsequent filling of drill rods 101, that is, filling drill rods 101 into material box 2, firstly, drive the lifting plate 5 to move upward to the top of material box 2, and stack the drill rods 101 one by one. After each drill rod 101 is placed, the lifting plate 5 moves downward by the diameter of one drill rod 101, so that the drill rods 101 can be smoothly filled into material box 2. The upper ends of the two adjacent partitions 4 are flared, such as... Figure 7 As shown, the entrance between two adjacent partitions 4 is enlarged to facilitate the loading of the drill rod 101;

[0064] Also considering the accurate clamping of each drill rod 101 by the clamping plate 18, that is, after each lifting of the drill rod 101 by the lifting plate 5, the top drill rod 101 can be centered between the adjacent partition plates 4, ensuring that the middle position of the outer ring of the end of the drill rod 101 to be clamped by the clamping plate 18 is opposite to the middle position of the two adjacent clamping plates 18, and the clamping plate 18 stably clamps the drill rod 101. For this purpose, a narrowing is set at the lower side of the upper end of the partition plate 4, such as... Figure 7 As shown, this makes the axis of drill pipe 101 centered between two adjacent partitions 4.

[0065] Reference Figure 5 , Figure 6 and Figure 10 Each of the second sliders 12 has a groove 32 at its bottom, and the top edge of the material box 2 is embedded in the groove 32.

[0066] A groove 32 is provided at the bottom of the second slider 12 to fit the top edge of the material box 2. The top edge of the material box 2 is embedded in the groove 32, which improves the stability of the second slider 12 during the sliding process, thereby improving the stability of the first hydraulic rod 11, the gripping component and the drill rod 101 during the horizontal movement.

[0067] Reference Figure 8 and Figure 9 Each of the pallets 9 has a groove 33 on its upper surface, and the end of the lifting plate 5 is embedded in the groove 33;

[0068] The groove 33 is designed to constrain the fit between the support plate 9 and the lifting plate 5. When the support plate 9 moves below the lifting plate 5, the support plate 9 moves upward through the second lead screw 8. The end of the lifting plate 5 is embedded in the groove 33, which constrains the relative sliding between the support plate 9 and the lifting plate 5. During the process of the support plate 9 pushing the lifting plate 5, the movement of the lifting plate 5 and the support plate 9 is more stable.

[0069] Reference Figures 1-3 A clearance opening 34 is provided at the middle of the rear end of the flatbed cart 1.

[0070] At the rear end of the flatbed trolley 1, i.e., the tail end of the flatbed trolley 1, a clearance opening 34 is provided. A structure for fixing the flatbed trolley 1 can be set in the clearance opening 34, such as setting a plug rod, which is inserted into the clearance opening 34 and fixed to the ground to fix the flatbed trolley 1. Alternatively, a support rod for temporarily supporting the drill rod 101 on the gripping assembly can be set in the clearance opening 34. The support rod can be composed of an electric actuator or a hydraulic cylinder in conjunction with a top plate, which supports the top plate. The top plate temporarily supports the suspended drill rod 101, improving the stability of the drill rod 101 in this state and the safety of oil drilling operations.

[0071] Working principle: First, drive the first lead screw 6 to rotate, which moves the first slider 7 to below a certain lifting plate 5 and pauses. Then, drive the second lead screw 8 to rotate, which moves the support plate 9 upward. During the upward movement, the support plate 9 lifts the lifting plate 5, which in turn lifts the drill rod 101 above. The end of the drill rod 101 moves upward along the two adjacent partitions 4. At this time, the drill rod 101 at the top of the support plate 9 is lifted to the top of the material box 2, which is the height that the gripping component can hold. Then, operate the gripping component, and the two adjacent clamping plates 18 move closer to each other and grip the drill rod 101. Then, drive the first hydraulic rod 11, which... Rod 11 drives the gripping assembly and drill rod 101 to move upward, then drives the third lead screw 13 to rotate. The third lead screw 13 drives the second slider 12 to slide along the top of the material box 2, and moves the drill rod 101 to the unloading position. Then, the drive assembly is operated, and the drive motor 20 drives the active gear to rotate. The active gear rubs the driven gear ring 22 to rotate. The driven gear ring 22 drives the base block 15 to deflect around the crossbeam 10, so that the drill rod 101 deflects around the axis of the crossbeam 10 to a position above one end of the material box 2, so that the drill rod 101 is away from the upper end of the material box 2, freeing up more operating space and making it easier to remove the drill rod 101 from the gripping assembly. At this time, the conveying and transfer of the drill rod 101 can be completed.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deep well drill pipe conveying device, characterized in that: The material box includes a flatbed cart for conveying drill rods, a material box without end caps on the flatbed cart, and sliding openings evenly opened along the height direction on both sides of the material box. Vertical partitions are symmetrically arranged on both sides of each sliding opening, and the partitions are fixed to the inner side wall of the material box. Each of the aforementioned sliding openings is equipped with a lifting plate. The end of each lifting plate protrudes out of the material box along the sliding opening. A first screw is provided at the bottom of both sides of the material box. A first slider is threadedly connected to the first screw. A second screw is vertically arranged on the first slider. A support plate is threadedly connected to the second screw. The support plate is used to lift the lifting plate upward. A crossbeam is installed across the top of the material box. A gripping mechanism is installed in the middle of the crossbeam. A hydraulic rod is installed at the end of the crossbeam. A slider is fixed to the bottom cylinder of the hydraulic rod. The slider slides along the edge of the top of the material box. A screw is threaded onto the slider and is rotatably connected to a support column on the top of the material box. The gripping mechanism includes a base block set on a crossbeam. Two hydraulic rods are symmetrically arranged on the lower end of the base block. The upper cylinders of the two hydraulic rods are rotatably connected to the lower surface of the base block. The output ends of the two hydraulic rods are rotatably connected to fixed lugs. Two arc-shaped clamps are symmetrically arranged below the base block. Each clamp has a fixed lug on its outer side wall and a base plate is rotatably connected to the end of each clamp. The base plate extends upward and is fixed to the side wall of the base block. The crossbeam is equipped with a drive assembly for driving the base block to rotate. The drive assembly includes a drive motor fixedly connected to the crossbeam. The output end of the drive motor is fixedly connected to a drive gear. The drive gear meshes with a driven gear ring. The driven gear ring is coaxially arranged with the crossbeam and is fixedly connected to the end face of the base block.

2. The deep well drill pipe conveying device according to claim 1, characterized in that: The trolley is equipped with a displacement assembly for driving the material box to move. The displacement assembly includes a fixed block located at the middle of the bottom of the material box. A No. 4 lead screw is threaded onto the fixed block, and the end of the No. 4 lead screw is rotatably connected to the trolley. The material box is symmetrically provided with sliding plates on both sides of the bottom. The sliding plates are arranged along the length of the material box, and the bottom of the sliding plates is slidably connected to guide rails, which are fixed to the trolley.

3. The deep well drill pipe conveying device according to claim 1, characterized in that: The top of the material box is provided with guide plates on both sides for the upper end of the second lead screw to slide. The guide plates are along the length of the material box and have strip holes. A third slider is provided in the strip holes and is rotatably connected to the upper end of the second lead screw.

4. The deep well drill pipe conveying device according to claim 1, characterized in that: A horizontal plate is provided between the two support columns at the top of the material box along its length. A sliding hole is opened on the horizontal plate along its length. The horizontal plate is placed on the upper surface of the cylinder of the first hydraulic rod, and the output end of the first hydraulic rod passes through the sliding hole upward.

5. A deep well drill pipe conveying device according to claim 1, characterized in that: The upper part of the adjacent partition is flared, and the lower part of the upper part of the adjacent partition is constricted.

6. A deep well drill pipe conveying device according to claim 1, characterized in that: Each of the second sliders has a groove at its bottom, and the top edge of the material box is embedded in the groove.

7. A deep well drill pipe conveying device according to claim 1, characterized in that: Each of the trays has a groove on its upper surface, and the end of the lifting plate is embedded in the groove.

8. A deep well drill pipe conveying device according to claim 2, characterized in that: A clearance opening is provided at the middle of the rear end of the flatbed cart.

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