A drill rod holder

Abstract

The utility model relates to a drill rod holder, specifically relates to a drill rod holder that can accurate positioning, including frame, the one side of frame is provided with telescopic cylinder, the other side is provided with fine adjustment screw rod, and all is provided with clamping block on telescopic cylinder and fine adjustment screw rod, and telescopic cylinder and fine adjustment screw rod realize the clamping to drill rod through the control clamping block movement, every clamping block all includes connecting plate and a pair of clamping plate, and connecting plate is connected on telescopic cylinder, fine adjustment screw rod, and a pair of clamping plate forms V -shaped groove and can detachable connection on connecting plate. Frame includes first placement area and second placement area, and telescopic cylinder is placed in first placement area, and fine adjustment screw rod is placed in second placement area, and be provided with outer muscle board between first placement area and second placement area, and be provided with inner muscle board in first placement area and second placement area respectively, and inner muscle board and outer muscle board are all used for guaranteeing frame strength. The utility model can make the drill rod positioning fast, has realized the purpose that the drill rod accurate positioning and installation.

Description

Technical Field

[0001] This utility model relates to a drill pipe clamp, specifically a drill pipe clamp capable of accurate positioning. Background Technology

[0002] In industries such as energy extraction, infrastructure construction, and large equipment manufacturing, the splicing, processing, and installation of long rod-shaped components are crucial links in production operations. Whether in coal mining, oil drilling, geological exploration, or building steel structure and power engineering construction, frequent clamping and positioning of large rod-shaped workpieces such as drill pipes, support rods, and long pipe fittings are required. As the scale of projects continues to expand and the objects being handled become increasingly large and complex, traditional methods relying on manual handling and fastening are no longer sufficient to meet the requirements of efficient and safe operations. Traditional mechanical clamps used for manual fastening are not only cumbersome to operate and labor-intensive, but also prone to slippage or even detachment of rods under high load conditions due to insufficient clamping force; at the same time, the accuracy of manual alignment is limited, often requiring repeated adjustments, resulting in low construction efficiency and seriously affecting project quality and progress. Utility Model Content

[0003] The purpose of this invention is to provide a drill pipe clamp that can simultaneously perform the centering operation of the drill pipe after clamping it.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A drill pipe clamp includes: a frame, a telescopic cylinder on one side of the frame and a fine-tuning screw on the other side, and clamping blocks on both the telescopic cylinder and the fine-tuning screw; the telescopic cylinder and the fine-tuning screw clamp the drill pipe by controlling the movement of the clamping blocks; each clamping block includes a connecting plate and a pair of clamping plates, the connecting plate is connected to the telescopic cylinder and the fine-tuning screw, and the pair of clamping plates form a V-groove and are detachably connected to the connecting plate.

[0005] Furthermore, the frame includes a first placement area and a second placement area, with the telescopic cylinder placed in the first placement area and the fine-tuning screw placed in the second placement area; an outer stiffening plate is provided between the first placement area and the second placement area, and inner stiffening plates are provided in the first placement area and the second placement area respectively; both the inner stiffening plate and the outer stiffening plate are used to ensure the strength of the frame.

[0006] Furthermore, the fine-tuning screw is threadedly connected to the rear plate of the second placement area via a nut. One end of the fine-tuning screw is connected to the clamping block via a screw sleeve, and the other end is connected to an adjusting handwheel. Rotating the handwheel moves the clamping block via the fine-tuning screw.

[0007] Furthermore, both the first placement area and the second placement area are provided with guide rods. The guide rod of the first placement area passes through the front plate and the rear plate of the first placement area, and the guide rod of the second placement area passes through the front plate and the rear plate of the second placement area. A guide block is provided on the clamping block, and the guide block is disposed on the guide rod.

[0008] Furthermore, the clamp is provided with anti-slip texture for preventing slippage.

[0009] Furthermore, the base plate of the frame is provided with a clearance groove to facilitate the passage of the drill rod.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects: This invention first adjusts the extension length of the fine-tuning screw according to the drill rod's diameter using a handwheel. As the telescopic cylinder extends and retracts, it pushes the clamping plate to secure the drill rod, placing it within the V-groove. This allows for rapid centering of the drill rod without additional manual adjustment. This invention enables rapid drill rod positioning without manual intervention, achieving precise drill rod positioning and installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a drill pipe clamp.

[0012] Figure 2 This is a diagram illustrating the adjustment of the handwheel.

[0013] Figure 3 This is a schematic diagram of the first placement area.

[0014] Figure 4 This is a schematic diagram of the second placement area. Detailed Implementation

[0015] like Figure 1 and Figure 2 As shown, a drill pipe clamp includes: a frame 1, a telescopic cylinder 2 is provided on one side of the frame 1, and a fine-tuning screw 3 is provided on the other side. Both the telescopic cylinder 2 and the fine-tuning screw 3 are equipped with clamping blocks 4. The telescopic cylinder 2 and the fine-tuning screw 3 clamp the drill pipe by controlling the movement of the clamping blocks 4. Figure 3As shown, each clamping block 4 includes a connecting plate 41 and a pair of clamping plates 42. The connecting plate 41 is connected to the telescopic cylinder 2 and the fine-tuning screw 3. The pair of clamping plates 42 form a V-groove and are detachably connected to the connecting plate 41. Before clamping the drill rod, the maximum extension length of the fine-tuning screw 3 needs to be adjusted by controlling the handwheel according to the diameter of the drill rod. The extension length of the fine-tuning screw is maintained at this time so that when the drill rod is clamped, the center line of the uninstalled drill rod coincides with that of the installed drill rod below. The V-groove improves the compatibility of the device with rods of different diameters and specifications. During the process of the telescopic cylinder 2 extending to clamp the drill rod, under the bidirectional clamping action of the clamping plates 42, the rod will be automatically guided to the center position of the V-groove formed by the clamping plates, thereby achieving a self-centering effect. Self-centering means that under the push of external force, the drill rod can quickly complete the centering with the help of the symmetrically arranged clamping inclined surfaces without additional manual adjustment. This structural design fully utilizes the principle of symmetrical distribution of clamping force, forcing the drill rod to align along the center point under the combined action of two force points, thereby achieving rapid and accurate positioning. For example, when clamping thinner rods, the V-groove achieves positioning through a smaller contact angle, while when clamping thicker rods, the jaw plates maintain a stable centering effect even at a larger contact angle. Through the cooperation between the symmetrically designed clamping plates 42, the center lines of the uninstalled drill rod and the installed drill rod coincide, ensuring that the center lines of the drill rod are aligned when clamped. This automatic centering not only makes the clamping of the drill rod more stable but also significantly reduces the labor intensity of workers.

[0016] The frame 1 includes a first placement area 9 and a second placement area 10. A telescopic cylinder 2 is placed in the first placement area 9, and a fine-tuning screw 3 is placed in the second placement area 10. An outer stiffening plate 5 is provided between the first placement area 9 and the second placement area 10, and inner stiffening plates 6 are respectively provided in the first placement area 9 and the second placement area 10. Both the inner stiffening plates 6 and the outer stiffening plates 5 are used to ensure the strength of the frame 1. An clearance groove 7 is provided on the upper part of the base plate of the frame 1 to facilitate the passage of the drill rod. The frame 1 of this invention is provided with inner stiffening plates 6 and outer stiffening plates 5 to prevent deformation of the frame 1 caused by the thrust generated by the telescopic cylinder 2 when clamping the drill rod. If the frame 1 deforms under stress, it will directly cause the rod to deviate from its central position in the clamped state, thus affecting the clamping accuracy and reliability. Two inner stiffening plates 6 are provided on one side of the fine-tuning screw 3. These two inner stiffening plates 6 on this side of the frame 1, together with the front and rear plates of the second placement area 10, form a reinforced frame, giving this side better resistance to deformation when bearing the lateral load generated during screw adjustment. An inner stiffening plate 6 is provided in the first placement area 9. One end of the inner stiffening plate 6 is fixed to the front plate of the first placement area 9, and the other end is fixed to the rear plate of the first placement area 9. One end of the cylinder body of the telescopic cylinder 2 is attached to the front plate of the first placement area 9, and the other end is attached to the rear plate of the first placement area 9. The cylinder body of the telescopic cylinder 2 can not only be used as a power element, but also be rationally used as a structural component, which improves the overall bending stiffness and torsional stiffness of the frame 1, making the frame 1 a stable load-bearing whole.

[0017] like Figure 4 As shown, the fine-tuning screw 3 is threadedly connected to the rear plate of the second placement area 10 via a nut. One end of the fine-tuning screw 3 is connected to the clamping block 4 via a screw sleeve 8, and the other end is connected to an adjusting handwheel 43. Rotating the handwheel causes the clamping block 4 to move via the fine-tuning screw 3. By rotating the adjusting handwheel 43, the fine-tuning screw 3 will rotate relative to the nut 44, and the fine-tuning screw will drive the clamping block 4 to move laterally, thereby achieving the purpose of adjusting the position of the drill rod being clamped.

[0018] Both the first placement area 9 and the second placement area 10 are equipped with guide rods 45. The guide rod 45 of the first placement area 9 passes through the front and rear plates of the first placement area 9, and the guide rod 45 of the second placement area 10 passes through the front and rear plates of the second placement area 10. A guide block 46 is provided on the clamping block 4, and the guide block 46 is disposed on the guide rod 45. A total of four detachable and replaceable guide blocks 46 are provided on the frame 1. The purpose of the guide blocks 46 is to improve the rigidity and stability of the entire clamping and moving parts. The through-type arrangement of the guide rods 45 indirectly improves the bending stiffness on both sides of the frame 1, reducing the risk of local deformation. The guide blocks 46 move along the guide rods 45, and the surface of the guide rods 45 is coated with oil to ensure the accuracy and stability of the movement. When the clamp is working, the guide rod 45, as the main component, bears the gravity load of the clamped rod. The guide block 46 moves forward in a straight line along the guide rod 45. The entire transmission process maintains stable linearity under the constraint of the guide rod 45, avoiding deviation or jamming, and ensuring smooth and reliable operation.

[0019] The clamping plate 42 is provided with anti-slip textures. The clamping plate 42 is detachably connected to the connecting plate 41 via threads. The anti-slip textures effectively increase the friction between the clamping plate 42 and the drill rod, improving clamping stability. The easily damaged jaw plates can be quickly replaced through simple disassembly and installation, greatly facilitating equipment maintenance and long-term use, reducing downtime due to component wear, and improving overall operational efficiency and economy. This design also has strong adaptability to the clamping needs of different types of rods. When clamping rods with relatively smooth surfaces or high requirements for surface integrity, such as polished steel pipes, coated pipes, or other precision components, the clamping plate 42 can be replaced with a glue-coated clamping plate. The glue-coated clamping plate can provide a certain amount of friction while effectively avoiding direct metal contact that could cause scratches or indentations on the rod surface, ensuring the appearance and structural integrity of the workpiece. When clamping certain thin-walled pipes with weak circumferential rigidity or prone to local deformation, a buffer layer can be installed on the surface of the clamping plate 42 to disperse clamping stress. By using screws to superimpose foam material or other elastic pads on the surface of the clamping plate 42, a good buffering and protective effect can be achieved, preventing the workpiece from collapsing or deforming due to concentrated force, thereby expanding the application range of the device in the field of light and thin-walled rods. For applications requiring clamping large-diameter or heavy rods, the device can be improved by replacing the jaw plates with those with deeper surface textures or by using serrated clamping plates 42, thereby increasing friction and clamping force. This effectively prevents the rods from slipping or loosening under high load conditions, increases the safety factor of the system operation, and ensures a stable clamping effect even under high-intensity continuous operation.

[0020] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A drill pipe clamp, characterized in that, include: The frame has a telescopic cylinder on one side and a fine-tuning screw on the other side. Both the telescopic cylinder and the fine-tuning screw are equipped with clamping blocks. The telescopic cylinder and the fine-tuning screw clamp the drill rod by controlling the movement of the clamping blocks. Each clamping block includes a connecting plate and a pair of clamping plates. The connecting plate is connected to the telescopic cylinder and the fine-tuning screw. The pair of clamping plates form a V-groove and are detachably connected to the connecting plate.

2. The drill pipe clamp according to claim 1, characterized in that, The frame includes a first placement area and a second placement area. The telescopic cylinder is placed in the first placement area, and the fine-tuning screw is placed in the second placement area. An outer stiffening plate is provided between the first placement area and the second placement area, and an inner stiffening plate is provided in the first placement area and the second placement area respectively. Both the inner stiffening plate and the outer stiffening plate are used to ensure the strength of the frame.

3. A drill pipe clamp according to claim 2, characterized in that, The fine-tuning screw is threadedly connected to the rear plate of the second placement area via a nut. One end of the fine-tuning screw is connected to the clamping block via a screw sleeve, and the other end is connected to an adjusting handwheel. Rotating the handwheel moves the clamping block via the fine-tuning screw.

4. A drill pipe clamp according to claim 2, characterized in that, Both the first placement area and the second placement area are provided with guide rods. The guide rod of the first placement area passes through the front plate and the rear plate of the first placement area, and the guide rod of the second placement area passes through the front plate and the rear plate of the second placement area. A guide block is provided on the clamping block, and the guide block is arranged on the guide rod.

5. A drill pipe clamp according to claim 1, characterized in that, The clamp is provided with anti-slip texture.

6. A drill pipe clamp according to claim 2, characterized in that, The base plate of the frame is provided with a clearance groove to facilitate the passage of the drill rod.

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