An adjustable spacing drill rod clamp

Abstract

The utility model relates to the technical field of clamp, specifically relates to a distance adjustable drill pipe clamp, including holder seat, main connecting plate, cylinder installation bottom plate, cylinder, the main connecting plate includes two working faces, cylinder installation bottom plate is fixedly installed with sliding slot assembly, two holder seats are slidably installed on the cylinder installation bottom plate, the cylinder installation bottom plate still installs the adjusting assembly for adjusting the distance between two holder seats on, the cylinder is fixedly installed with main connecting plate for pushing cylinder installation bottom plate linear motion along the central axis of cylinder, the utility model discloses the setting of clamping finger and auxiliary finger, realize the double clamping to drill pipe, guarantee that the drill pipe does not occur the shift in the transfer process drill pipe and causes the influence to the installation work of drill pipe, can be steady and hold up to the drill pipe when drilling on the drill pipe through auxiliary finger, avoid the installation deviation in the process of drilling on the drill pipe, cause the serious consequence.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically to a drill pipe clamp with adjustable spacing. Background Technology

[0002] During field drilling exploration operations, due to the influence of geological structure and changes in drilling diameter requirements, it is necessary to replace drill pipes of different diameters. When replacing drill pipes, it is necessary to remove the drill pipes from the drilling rig or take them from the storage location for installation. This process requires the assistance of construction personnel to initially straighten and pick up the drill pipes, which is time-consuming, labor-intensive, and poses significant safety hazards. Therefore, the use of robotic arms combined with clamps to transfer drill pipes has significant application prospects and urgent need for promotion.

[0003] Existing clamps often only clamp a small section of the drill rod in the middle. After being moved to the drilling position, they cannot provide additional stability to the drill rod, requiring workers to support it, which is dangerous. Furthermore, when workers support the drill rod for drilling, the drilling progress cannot be monitored in real time, and it is impossible to determine whether the drill rod has been installed successfully.

[0004] Therefore, there is an urgent need for a drill pipe clamp with adjustable spacing to achieve multi-end clamping of the drill pipe, ensure the stability of the drill pipe during the transfer process, and at the same time monitor the installation progress of the drill pipe in real time to ensure the accuracy of the drill pipe installation. Utility Model Content

[0005] The purpose of this invention is to provide a drill pipe clamp with adjustable spacing to solve the above-mentioned problems.

[0006] This utility model is achieved through the following technical solution: An adjustable-spacing drill pipe clamp includes a clamping base. The clamp further includes: a main connecting plate, comprising a first working surface and a second working surface; the first working surface is fixedly mounted to a robotic arm for connecting the clamp to the robotic arm; the second working surface is provided with a sliding groove assembly for mounting various components; a cylinder mounting base plate, fixedly mounted to the sliding groove assembly; two clamping bases are slidably mounted on the cylinder mounting base plate; the cylinder mounting base plate is also equipped with an adjusting assembly for adjusting the spacing between the two clamping bases; the clamping bases are respectively equipped with clamping fingers for clamping the drill pipe during drill pipe transfer and auxiliary fingers for assisting in supporting the drill pipe during drill pipe installation; and a cylinder, fixedly mounted to the main connecting plate for pushing the cylinder mounting base plate to move linearly along the cylinder's central axis; the cylinder is equipped with a pressure sensor for detecting axial pressure on the drill pipe.

[0007] Furthermore, the slide rail assembly includes a sliding guide rail and a limiting stop fixedly mounted on the main connecting plate, and a sliding connecting seat for fixing the cylinder mounting base plate is slidably mounted on the sliding guide rail.

[0008] Furthermore, the adjustment assembly includes a motor fixedly mounted on the cylinder mounting base plate, and an adjustment screw fixedly mounted on the output shaft of the motor. The adjustment screw includes a threaded part and a smooth rod part. The threaded part is provided with two sections with opposite rotation directions. The opposite threaded sections are respectively provided at both ends of the smooth rod part. Two clamping seats are respectively threadedly connected to the two threaded sections with opposite rotation directions.

[0009] Furthermore, the motor also includes a guide rod fixedly mounted on the cylinder mounting base plate for auxiliary guidance of the clamping seat, and the clamping seat is slidably mounted to the guide rod.

[0010] Furthermore, a finger seat for adjusting the tightness of the clamp is slidably mounted on the clamp holder.

[0011] Furthermore, the finger holder near the motor is used to secure the clamping finger in place using bolts and nuts.

[0012] Furthermore, the finger holder, located away from the motor, secures the auxiliary finger in place using bolts and nuts.

[0013] Furthermore, the clamping finger includes a connecting part and an arc-shaped part. The connecting part of the clamping finger is fixedly installed with the finger seat, and the arc-shaped part of the clamping finger is configured to fit the drill rod in a semi-bracket shape.

[0014] Furthermore, the auxiliary finger includes a connecting part and a groove part. The connecting part of the auxiliary finger is fixedly installed with the finger seat, and a fitting roller ring for assisting in the installation of the drill rod is rotatably installed on the groove part of the auxiliary finger.

[0015] Furthermore, the cylinder is fixedly installed on the main connecting plate via a fixed base. A mounting latch for assisting in fixing the cylinder is fixedly installed on the cylinder. The mounting latch is fixedly installed on the main connecting plate. A connecting column is fixedly installed on the extended end of the cylinder. A pressure sensor is installed on the connecting column to detect the pressure on the connecting column and transmits the pressure information through a signal transmitter. A pull block for connecting the cylinder mounting base plate is also fixedly installed on the connecting column.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. This utility model achieves dual clamping of the drill rod by setting up clamping fingers and auxiliary fingers, ensuring that the drill rod will not shift during the transfer process and affect the installation of the drill rod. At the same time, the auxiliary fingers can provide stable support for the drill rod when drilling, avoiding installation deviations during the drilling process and preventing serious consequences. 2. This utility model, by designing a pressure sensor on the connecting column, can monitor the installation progress of the drill pipe in real time, avoiding situations where the drill pipe is installed beyond the specified range or not beyond the specified range, which could cause damage to the drill pipe or result in the drill pipe not being locked properly. 3. This utility model allows for adjustment of the position of the clamping fingers and auxiliary fingers through the adjustment component. Combined with the clamping base, it can stably clamp drill rods of different lengths and diameters, greatly improving the applicability of the clamp. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view schematic diagram of the present utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a partial cross-sectional view of the cylinder connection part of this utility model.

[0018] The attached diagram shows the markings and corresponding component names: 1-Main connecting plate; 2-Cylinder mounting base plate; 3-Cylinder; 4-Motor; 5-Clamping device seat; 6-Clamping finger; 7-Auxiliary finger; 1001-Sliding guide rail; 1002-Sliding connecting seat; 1003-Limiting stop; 2001-Mounting plate I; 2002-Mounting plate II; 3001-Connecting column; 3002-Mounting latch; 3003-Pressure sensor; 3004-Pull block; 5001-Finger seat; 7001-Fitting roller ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are for explaining the utility model only and are not intended to limit the utility model. It should be noted that this utility model is already in the actual research and development stage.

[0020] Example 1 like Figure 1 , Figure 2, Figure 3 and Figure 4 As shown, in this embodiment, an adjustable-spacing drill pipe clamp includes a clamping base 5. The clamp further includes: a main connecting plate 1, which has two working surfaces. The first working surface is fixedly installed with a robotic arm to connect the clamp to the robotic arm, and the second working surface is provided with a sliding groove assembly for installing various components; a cylinder mounting base plate 2, which is fixedly installed with the sliding groove assembly. Two clamping bases 5 are slidably installed on the cylinder mounting base plate 2. An adjusting component for adjusting the spacing between the two clamping bases 5 is also installed on the cylinder mounting base plate 2. The clamping bases 5 are respectively equipped with clamping fingers 6 for clamping the drill pipe during drill pipe transfer and auxiliary fingers 7 for assisting in supporting the drill pipe during drill pipe installation; and a cylinder 3, which is fixedly installed with the main connecting plate 1 to push the cylinder mounting base plate 2 to move linearly along the central axis of the cylinder 3. A pressure sensor 3003 for detecting the axial pressure of the drill pipe is provided on the cylinder 3.

[0021] The main connecting plate 1 is provided with multiple through holes (the number is set according to the actual situation). The main connecting plate 1 is fixedly installed to the robotic arm through the through holes by bolts and nuts. Two sliding guide rails 1001 are fixedly installed on the main connecting plate 1. Limiting seats 1003 are fixedly installed at both ends of the two sliding guide rails 1001 respectively. All four limiting seats 1003 are fixedly installed to the main connecting plate 1. Two sliding connecting seats 1002 are slidably installed on the two sliding guide rails 1001 respectively. The four sliding connecting seats 1002 are fixedly installed to the cylinder mounting base plate 2 by bolts and nuts.

[0022] A cylinder 3 is also fixedly mounted on the main connecting plate 1 via a connecting seat. Two mounting latches 3002 are fixedly mounted on the fixed end of the cylinder 3. The two mounting latches 3002 are fixedly mounted to the main connecting plate 1. The mounting latches 3002 are further fixed to the cylinder 3 by bolts and nuts. A rectangular through hole is provided on the main connecting plate 1. The air inlet pipe and air outlet pipe of the cylinder 3 are connected to the air pressure system through the rectangular through hole. A connecting column 3001 is fixedly mounted on the extended end of the cylinder 3. A pull block 3004 is fixedly mounted on the connecting column 3001. The pull block 3004 is fixedly mounted to the cylinder mounting base plate 2. A pressure sensor 3003 for detecting the axial pressure of the connecting column 3001 is fixedly installed on the connecting column 3001. The pressure information detected by the pressure sensor 3003 is transmitted to the operating platform of the robotic arm for display through a signal transmitter.

[0023] Example 2 In this embodiment, mounting plate I 2001 and mounting plate II 2002 are fixedly mounted on the cylinder mounting base plate 2 by bolts. Two smooth rods that are slidably mounted on the mounting plate I 2001 and mounting plate II 2002 are fixedly mounted on the mounting plate I 2001 and mounting plate II 2002. A motor 4 is fixedly mounted on the mounting plate II 2002. The output shaft of the motor 4 is rotatably mounted on the output shaft of the motor 4. The adjusting screw is rotatably mounted on the mounting plate I 2001 and mounting plate II 2002 respectively. The adjusting screw includes a threaded part and a smooth rod part. The threaded part is provided with two sections with opposite rotation directions. The opposite threaded sections are respectively provided at both ends of the smooth rod part. The two clamping seats 5 are respectively threadedly connected to the two threaded sections with opposite rotation directions. Two finger seats 5001 are slidably mounted on each of the two clamping seats 5. The two finger seats 5001 are symmetrically arranged. During operation, the two finger seats 5001 are linearly adjusted by the clamping seats 5.

[0024] Example 3 In this embodiment, clamping fingers 6 are fixedly installed on two finger seats 5001 near the motor 4 by bolts and nuts. Each clamping finger 6 includes a connecting part and an arcuate part. The connecting part of the clamping finger 6 is fixedly installed on the finger seat 5001. The arcuate part of the clamping finger 6 is designed to fit the drill rod in a semi-bracket shape. The arcuate parts of the two clamping fingers 6 are arranged opposite each other. During operation, the position of the finger seat 5001 is adjusted by the clamping device seat 5, thereby adjusting the relative positions of the arcuate parts of the two clamping fingers 6 to clamp and release the drill rod. Two auxiliary fingers 7 are provided, each including a connecting part... The connecting parts and grooves of the two auxiliary fingers 7 are respectively fixed to the two finger seats 5001 away from the motor 4 by bolts and nuts. The two auxiliary fingers 7 are arranged opposite each other. Two fitting roller rings 7001 for assisting drill rod installation are rotatably installed on the grooves of the two auxiliary fingers 7. During operation, the position of the finger seats 5001 is adjusted by the clamping seat 5, thereby adjusting the relative position of the grooves of the two auxiliary fingers 7, and thus adjusting the relative position of the fitting roller rings 7001, thereby achieving auxiliary support and release of the drill rod. It is worth noting that adjusting the motor 4 Specifically, a hybrid stepper motor is used, for example, a 57HS22 stepper motor with a rated voltage of DC 24V, a rated phase current of 2.0A, and a maximum static holding torque of 2.2 N·m, which can ensure the stable rotation of the adjusting screw and the high-precision equidistant movement of the clamping seat 5; the clamping seat 5 adopts a wedge-shaped slider structure with a built-in induction magnet and a stable seat with high output and stability, for example, an HDW80-SD2-40 stable seat with a cylinder diameter of 80mm and a working pressure of 3~7 kgf / cm² (300~700 kPa), which can ensure the stable clamping of the drill rod by the clamping fingers 6 and the auxiliary fingers 7; the cylinder 3 adopts a stable traditional cylinder, for example, an MBL32X60SCA cylinder, which can adapt to the axial changes of the drill rod and, together with the pressure sensor 3003, can reflect the installation progress of the drill rod in real time.

[0025] During operation, the drill rods are placed on the storage platform and stacked one by one. The entire clamp is then transferred by the robotic arm. Since the length and diameter of the drill rods vary depending on the application, the clamp needs to be adjusted accordingly during drilling. The position of the clamping fingers 6 and auxiliary fingers 7 along the output shaft of the motor 4 is adjusted based on the length of the drill rod. During adjustment, the motor 4 is started, which drives the adjusting screw to rotate, thereby causing the two clamping seats 5 to move relative to each other along the output shaft of the motor 4. The adjustment distance is transmitted to the operating platform for display via a signal (the robotic arm, operating platform, pneumatic system, and signal are not shown in the figure; they are conventional technical means). Adjusting the distance between the clamping fingers 6 and auxiliary fingers 7 according to the length of the drill rod ensures that the clamp holds the drill rod in a stable position, guaranteeing the stability of the drill rod during transfer and drilling.

[0026] After adjusting the distance between the clamping finger 6 and the auxiliary finger 7, the clamping device 5 is activated, which drives the clamping finger 6 and the auxiliary finger 7 to clamp the drill rod. After clamping, the robotic arm is activated to transfer the drill rod. After it is transferred to the drilling position, the clamping finger 6 is released from the drill rod by activating the clamping device 5 near the motor 4. The upper end of the drill rod is fixed by the drilling machine and the drill rod is rotated. During the rotation, the drill rod is threadedly connected to the drill bit. At this time, the auxiliary finger 701 stabilizes the axial position of the drill rod to prevent the drill rod from shifting, causing drilling errors, and thus leading to serious consequences.

[0027] During the rotational connection of the drill rod, the axial movement of the drill rod is balanced by the sliding installation of the cylinder mounting base plate 2 and the main connecting plate 1 with the cylinder 3, preventing damage to the clamp during axial movement. At the same time, the pressure sensor 3003 records and detects changes in the axial movement of the drill rod, and transmits the recorded and detected information synchronously to the display of the operating platform. The operator controls the drilling of the drill rod in real time based on the displayed information. When the pressure sensor 3003 detects an increase in the pressure of the drill rod, it indicates that the drilling work has been completed. At this time, the operator releases the clamp on the drill rod through the operating platform, and the mechanical arm drives the clamp to move, repeating the clamping and installation work for the next section of the drill rod, thus completing the drilling installation of the drill rod.

[0028] When the drill rod is drilled down and retrieved, the mechanical arm transfers the clamp so that the clamping finger 6 and the auxiliary finger 7 surround the drill rod. The auxiliary finger 7 is activated by the clamping seat 5 to support the drill rod. The drill rod is rotated by the drilling machine and the locking table to detach the drill rod from the drill bit. After detachment, the clamping finger 6 is activated by the clamping seat 5 to double fix the drill rod, ensuring the stability and accuracy of the drill rod when transferred by the mechanical arm.

[0029] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A drill pipe clamp with adjustable spacing, comprising a clamping base (5), characterized in that, The fixture also includes: The main connecting plate (1) includes a first working surface and a second working surface. The first working surface is fixedly installed with the robotic arm to connect the clamp to the robotic arm. The second working surface is provided with a sliding groove assembly for installing various components. A cylinder mounting base plate (2) is fixedly installed with a sliding groove assembly. Two clamping seats (5) are slidably installed on the cylinder mounting base plate (2). An adjustment assembly for adjusting the distance between the two clamping seats (5) is also installed on the cylinder mounting base plate (2). Clamping fingers (6) for clamping the drill rod when transferring the drill rod and auxiliary fingers (7) for assisting in supporting the drill rod when installing the drill rod are respectively installed on the clamping seats (5). The cylinder (3) is fixedly installed on the main connecting plate (1) to push the cylinder mounting base plate (2) to move linearly along the central axis of the cylinder (3). The cylinder (3) is equipped with a pressure sensor (3003) for detecting the axial pressure of the drill rod.

2. The adjustable-spacing drill pipe clamp according to claim 1, characterized in that: The slide rail assembly includes a sliding guide rail (1001) and a limiting stop (1003) fixedly installed on the main connecting plate (1). A sliding connecting seat (1002) for fixing the cylinder mounting base plate (2) is slidably installed on the sliding guide rail (1001).

3. The adjustable-spacing drill pipe clamp according to claim 1, characterized in that: The adjustment assembly includes a motor (4) fixedly mounted on the cylinder mounting base plate (2). An adjustment screw is fixedly mounted on the output shaft of the motor (4). The adjustment screw includes a threaded part and a smooth rod part. The threaded part is provided with two sections with opposite rotation directions. The opposite threaded sections are respectively provided at both ends of the smooth rod part. Two clamp seats (5) are respectively threadedly connected to the two threaded sections with opposite rotation directions.

4. The adjustable-spacing drill pipe clamp according to claim 1, characterized in that: The adjustment assembly also includes a light rod column fixedly installed on the cylinder mounting base plate (2) for auxiliary guidance of the clamping seat (5), and the clamping seat (5) is slidably installed with the light rod column.

5. The adjustable-spacing drill pipe clamp according to claim 1, characterized in that: A finger seat (5001) for adjusting the tightness of the clamp is slidably mounted on the clamp holder (5).

6. The adjustable-spacing drill pipe clamp according to claim 5, characterized in that: The finger holder (5001) near the motor (4) is used to fix the clamping finger (6) in place by bolts and nuts.

7. The adjustable-spacing drill pipe clamp according to claim 5, characterized in that: The finger holder (5001) located away from the motor (4) is used to fix the auxiliary finger (7) in place by bolts and nuts.

8. The adjustable-spacing drill pipe clamp according to claim 6, characterized in that: The clamping finger (6) includes a connecting part and an arc-shaped part. The connecting part of the clamping finger (6) is fixedly installed with the finger seat (5001). The arc-shaped part of the clamping finger (6) is configured to fit the drill rod in a semi-bracket shape.

9. A drill pipe clamp with adjustable spacing according to claim 7, characterized in that: The auxiliary finger (7) includes a connecting part and a groove part. The connecting part of the auxiliary finger (7) is fixedly installed with the finger seat (5001). A fitting roller ring (7001) for assisting in the installation of the drill rod is rotatably installed on the groove part of the auxiliary finger (7).

10. A drill pipe clamp with adjustable spacing according to claim 1, characterized in that: The cylinder (3) is fixedly installed on the main connecting plate (1) via a fixed base. A mounting buckle (3002) for assisting in fixing the cylinder (3) is fixedly installed on the cylinder (3). The mounting buckle (3002) is fixedly installed on the main connecting plate (1). A connecting column (3001) is fixedly installed on the extended end of the cylinder (3). The pressure sensor (3003) is set on the connecting column (3001) to detect the pressure of the connecting column (3001) and transmit the pressure through a signal device. A pull block (3004) for connecting the cylinder mounting base plate (2) is also fixedly installed on the connecting column (3001).

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