Drill rod rack for placing drill rods during tripping in geological core drilling construction

Abstract

The utility model relates to a drill rod rack for placing drill rods during tripping in geological core drilling construction. The pipe frame body comprises a vertical rod and a stop rod, and a cross beam is fixedly arranged between the vertical rod and the stop rod; the top surface of the drill rod lifting plate is provided with an abutting arc surface; the lifting power mechanism is installed on the side wall, close to the vertical rod, of the cross beam so as to drive the drill rod lifting plate to ascend and descend. Lifting of the drill rod lifting plate is controlled through the lifting power mechanism, the operation height of the drill rod lifting plate can be adjusted so as to achieve adjustment of the placement height of the drill rods, after a layer of drill rods are laid on the cross beam, the lowest falling height of the drill rods can be increased by increasing the drill rod lifting plate, and therefore the drill rods on the first layer serve as a starting point. Compared with traditional manual operation, the working amount of manual carrying and drill rod position adjusting is reduced, the operation efficiency is improved, and the labor intensity of workers and the safety risk are reduced.

Description

Technical Field

[0001] This utility model relates to the field of drill rod placement and retrieval technology, specifically a drill rod holder for placing drill rods during the tripping in geological core drilling operations. Background Technology

[0002] In geological core drilling operations, tripping in and out of the borehole is a frequent and crucial step, requiring the removal or lowering of drill rods. Traditional methods of storing drill rods typically involve using simple supports or laying them directly on the ground, which has the following technical drawbacks:

[0003] (1) Low efficiency of manual handling: The drill rod is heavy and long. Relying on manual handling and placement is labor-intensive, has low work efficiency, and poses safety hazards.

[0004] (2) Drill rod is prone to rolling off and being damaged: Traditional supports lack an effective limiting structure, and the drill rod is prone to slipping off the side of the support or rolling and colliding, resulting in damage to the drill rod thread or pipe body;

[0005] (3) Unreasonable space occupation: The horizontal stacking of drill rods requires a large area, and the storage and retrieval are inconvenient when stacked in multiple layers, which affects the smoothness of construction;

[0006] (4) Lack of lifting and adjustment function: The drill rod needs to be manually lifted and aligned when it is picked up and put down, which is cumbersome and exacerbates the physical exertion of workers, especially in deep hole operations.

[0007] To address the aforementioned issues, some improvements have been proposed in the existing technology, such as using an inclined drill rod frame or a fixed bracket with a limiting groove. However, problems such as reliance on manual lifting, insufficient guiding stability, and unreasonable design of the stop bar structure still exist.

[0008] Therefore, there is an urgent need for a drill rod holder with automated lifting function, a stable structure, and the ability to effectively prevent drill rod from falling off, in order to improve the safety and efficiency of drilling operations. Utility Model Content

[0009] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a drill rod holder that can assist in the placement and retrieval of drill rods, thereby greatly improving work efficiency and reducing labor intensity. This drill rod holder is used for placing drill rods during the drilling and hoisting process in geological core drilling.

[0010] The technical problem to be solved by this utility model is achieved through the following technical solution: a drill rod frame for placing drill rods during the drilling and hoisting process in geological core drilling, comprising:

[0011] The pipe rack body includes vertically arranged vertical rods and stop rods, and a horizontal beam is fixed between the vertical rods and the stop rods. The space between the vertical rods, the stop rods and the horizontal beams forms a drill pipe storage space.

[0012] A drill pipe lifting plate is placed above the vertical rod, and its top surface has at least one abutting arc surface for abutting against the outer circumferential surface of the drill pipe.

[0013] The lifting power mechanism is installed on the side wall of the crossbeam near the vertical rod, thereby driving the drill pipe lifting plate to rise and fall.

[0014] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the drill rod frame for placing drill rods during drilling and tripping in geological core drilling construction, as described above, has a top height of the stop bar higher than the crossbeam, thereby blocking the drill rods near the stop bar in the drill rod storage space and preventing the drill rods from falling off the stop bar.

[0015] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the drill rod frame for placing drill rods during drilling and hoisting in geological core drilling construction, as described above, has guide sleeves fixed on the drill rod lifting plate and the side wall of the crossbeam near the vertical rod. A guide rod is set in the guide sleeve of the crossbeam, and the top end of the guide rod extends into the guide sleeve on the drill rod lifting plate, thereby guiding the lifting and hoisting of the drill rod lifting plate.

[0016] A guide rod positioned between the drill pipe lifting plate and the crossbeam blocks the drill pipes in the drill pipe storage space that are closer to the vertical rod.

[0017] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the drill rod frame for placing drill rods during the drilling and hoisting of geological core drilling, as described above, wherein the lifting power mechanism includes a mounting box, a handle, a gear and a rack.

[0018] The mounting box is fixed to the side wall of the crossbeam and is hollow inside;

[0019] The gear is placed inside the mounting box;

[0020] One end of the handle is placed outside the mounting box, and the other end is rotatably mounted inside the mounting box and fixedly connected to the center of the gear, thereby driving the gear to rotate.

[0021] The top end of the rack is fixedly connected to the side wall of the drill rod lifting plate, and the bottom end of the rack is placed in the mounting box and meshes with the gear.

[0022] The handle drives the gear to mesh with the rack, thereby adjusting the height of the drill rod lifting plate at the top of the rack.

[0023] Compared with the prior art, the beneficial technical effects of this utility model are:

[0024] (1) By controlling the lifting and lowering of the drill rod lifting plate through the lifting power mechanism, the working height of the drill rod lifting plate can be adjusted. When a layer of drill rods is laid on the crossbeam, the minimum drop height of the drill rods can be increased by raising the drill rod lifting plate. This height can be used as the laying height of the first layer of drill rods for laying the first layer of drill rods. Compared with traditional manual operation, it reduces the workload of manual handling and adjusting the position of drill rods, improves work efficiency, and reduces the labor intensity and safety risks of workers.

[0025] (2) The structure of guide rod and guide sleeve is adopted to ensure that the drill pipe lifting plate remains stable during the lifting process, and to avoid shaking or tilting of the drill pipe lifting plate during movement, thereby improving the accuracy of operation;

[0026] (3) The drill pipe storage space adopts a vertical or inclined arrangement, which can save space compared with the traditional horizontal stacking and facilitates the sequential storage and retrieval of drill pipes, reducing drill pipe collisions and wear;

[0027] (4) The height of the stop bar is higher than that of the crossbeam, and a guide bar is provided on the side of the crossbeam closest to the vertical bar, so as to form a mechanical block on the left and right sides of the crossbeam, effectively preventing the drill rod from rolling down from the side and ensuring the safe storage of the drill rod;

[0028] (5) The contact arc surface of the drill rod lifting plate fits against the outer wall of the drill rod to prevent the drill rod from sliding or colliding during the lifting process, reduce damage to the threads and pipe body, and extend the service life of the drill rod to a certain extent. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the main structure of the bottle body of this utility model.

[0030] Reference numerals in the attached diagram: 1. Vertical rod; 2. Stop bar; 3. Horizontal beam; 4. Drill rod lifting plate; 5. Abutting arc surface; 6. Guide sleeve; 7. Guide rod; 8. Mounting box; 9. Handle; 10. Gear; 11. Rack. Detailed Implementation

[0031] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0032] Example 1, referring to Figure 1 A drill rod frame for placing drill rods during the tripping and lowering of drill pipes in geological core drilling operations, comprising:

[0033] The pipe frame includes a vertically arranged vertical rod 1 and a stop rod 2. The vertical rod 1 and the stop rod 2 can be formed into square tubes, and their size and specifications can be selected according to the usage requirements. A horizontal beam 3 is fixed between the vertical rod 1 and the stop rod 2. The space between the vertical rod 1, the stop rod 2 and the horizontal beam 3 forms a drill rod storage space. The size of the drill rod storage space can be selected according to the usage requirements.

[0034] The drill pipe lifting plate 4 is formed into a roughly square plate structure, which is placed above the vertical rod 1. Its top surface has at least one abutting arc surface 5 for abutting against the outer peripheral surface of the drill pipe. The size of the arc surface 5 can be selected and customized according to the curvature of the outer peripheral surface of the drill pipe.

[0035] The top of the stop bar 2 is higher than the crossbeam 3, which blocks the drill rods near the stop bar 2 in the drill rod storage space, thereby preventing the drill rods from falling off the stop bar 2.

[0036] Guide sleeves 6 are fixed on the side wall of the drill pipe lifting plate 4 and the crossbeam 3 near the vertical rod 1. The guide sleeves 6 are formed into a roughly circular cylindrical structure. A guide rod 7 is provided inside the guide sleeve 6 of the crossbeam 3. The top end of the guide rod 7 extends into the guide sleeve 6 on the drill pipe lifting plate 4, thereby guiding the lifting of the drill pipe lifting plate 4.

[0037] The guide rod 7, placed between the drill pipe lifting plate 4 and the crossbeam 3, blocks the drill pipe near the vertical rod 1 in the drill pipe storage space.

[0038] It also includes a lifting power mechanism, which is installed on the side wall of the crossbeam 3 near the vertical rod 1, thereby driving the drill pipe lifting plate 4 to rise and fall. The lifting power mechanism includes a mounting box 8, a handle 9, a gear 10 and a rack 11.

[0039] The mounting box 8 is fixed to the side wall of the crossbeam 3, and is hollow, forming a roughly square box structure.

[0040] The gear 10 is placed inside the mounting box 8;

[0041] One end of the handle 9 is placed outside the mounting box 8, and the other end is rotatably installed inside the mounting box 8 and fixedly connected to the center of the gear 10, thereby driving the gear 10 to rotate. The handle is formed into a roughly Z-shaped rod structure, and its design purpose is only to drive the gear 10 to rotate.

[0042] The top end of the rack 11 is fixedly connected to the side wall of the drill rod lifting plate 4, and the bottom end of the rack 11 is placed in the mounting box 8 and meshes with the gear 10.

[0043] The handle 9 drives the gear 10 to mesh with the rack 11, thereby adjusting the height of the drill rod lifting plate 4 at the top of the rack 11.

[0044] In Example 1, it should be noted that since we use spur gear 10 and rack 11, we need to further implement self-locking. The pressure angle of a standard spur gear is 20°, while the spur gear in Example 1 uses a pressure angle between 25° and 45° to achieve self-locking.

[0045] The drill rod holder used for placing drill rods during the tripping and lowering of the drill string in Example 1 is used as follows:

[0046] (1) During drilling:

[0047] When drilling, we first use the drill rod lifter to suspend the drill rod from the borehole and then move it to an open area. During this process, we gradually lower the height of the drill rod. When the bottom of the drill rod is close to the ground, we place a pulley (not shown in the figure, which is a roughly square plate structure with rollers hinged at the bottom) directly below the bottom of the drill rod. Then we continue to gradually lower the height of the drill rod until the outer circumference of the top of the drill rod descends to the abutting arc surface 5 of the drill rod lifting plate 4. At this time, the height of the abutting arc surface 5 and the ground is almost the same as the height of the crossbeam 3, or higher than the height of the outer diameter of one drill rod on the crossbeam 3. At this time, we remove the pulley and the drill rod lifter, and manually push the drill rod horizontally onto the crossbeam 3 using lifting tools. This completes the drilling of a single drill rod. We repeat the action until the crossbeam 3 is filled. When laying the second layer of drill rods, we only need to manually turn the handle 9 to raise the height of the drill rod lifting plate 4 to lay the second layer, i.e., the upper layer of drill rods.

[0048] (2) During drilling:

[0049] We use tools such as hoists in the factory to move the drill rod on the crossbeam 3 onto the contact arc surface 5 of the drill rod lifting plate 4 and the pulley. Then, we use the drill rod lifter to pull the top of the drill rod, and then completely lift the drill rod and drill it into the borehole. This completes the drilling of a single drill rod. We repeat the operation until all drill rods have been drilled.

Claims

1. A pipe rack for use in a geological core drilling operation for placing drill pipes in a tripping operation, c h a r a c t e r i s e d in that: It comprises; A pipe rack body comprising vertical poles and blocking poles arranged vertically, and a horizontal beam fixed horizontally between the vertical poles and the blocking poles, the space between the vertical poles, the blocking poles and the horizontal beam forming a drill rod storage space; A drill rod lifting plate arranged above the vertical poles, the top surface of the drill rod lifting plate having at least one abutting arc surface for abutting with the outer circumferential surface of the drill rod; A lifting power mechanism installed on the side wall of the horizontal beam close to the vertical poles to drive the drill rod lifting plate to lift.

2. The drill rod rack for placing drill rods in a drilling operation for geological core drilling, according to claim 1, characterized in that: The top end of the blocking pole is higher than the horizontal beam, so as to block the drill rods close to the blocking pole in the drill rod storage space, thereby avoiding the drill rods from falling off from the blocking pole.

3. The drill rod rack for placing drill rods in a drilling operation for geological core drilling according to claim 1, characterized in that: A guide sleeve is fixed on the side wall of the drill rod lifting plate close to the vertical poles and the horizontal beam, a guide rod is arranged in the guide sleeve of the horizontal beam, and the top end of the guide rod extends into the guide sleeve on the drill rod lifting plate, so as to guide the lifting of the drill rod lifting plate; The guide rod arranged between the drill rod lifting plate and the horizontal beam blocks the drill rods close to the vertical poles in the drill rod storage space.

4. The drill rod rack for placing drill rods in a drilling operation for geological core drilling according to claim 1, characterized in that: The lifting power mechanism comprises a mounting box, a handle, a gear and a rack; The mounting box is fixed on the side wall of the horizontal beam and is hollow; The gear is arranged in the mounting box; One end of the handle is arranged outside the mounting box, the other end of the handle is rotatably installed in the mounting box and is fixedly connected with the center of the gear, so as to drive the gear to rotate; The top end of the rack is fixedly connected with the side wall of the drill rod lifting plate, and the bottom end of the rack is arranged in the mounting box and is engaged with the gear; The gear is driven by the handle to engage with the rack, so as to adjust the height of the drill rod lifting plate at the top end of the rack.

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