Drill pipe handling device

Abstract

The application discloses a drilling rod storage and taking-out device, which comprises a driving sprocket (610) driven by a driving shaft (310) and a driven sprocket (620) connected with a driven shaft (320), the driving sprocket (610) and the driven sprocket (620) are connected through a transmission chain (400) in engagement; a plurality of positioning parts for storing drilling rods are arranged on the transmission chain (400), each positioning part is provided with a positioning member for fastening the stored drilling rod and keeping the drilling rod movable along with the transmission chain; and a detection device for monitoring whether one or more of any three continuous positioning parts stores the drilling rod or not, the detection device is electrically connected with a driving mechanism of the driving shaft (310).

Description

Technical Field

[0001] This invention relates to an automatic drill pipe storage and retrieval device, and more particularly to a multi-rod drill pipe storage and retrieval device for exploration drilling rigs. Background Technology

[0002] Currently, drill pipe storage and retrieval devices in the exploration field involve stacking all drill pipes together, making it difficult to grip them and impossible to fix their positions in and out of the storage area. During the process of moving drill pipes out or in, they frequently tilt, and uneven stress on the pipes during this process can easily lead to disordered placement, causing them to jam the gripping mechanism or become misaligned and unable to be gripped. Manually storing and retrieving drill pipes is not only time-consuming and labor-intensive but also prone to safety accidents. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a drill pipe storage and retrieval device that can effectively improve the efficiency of drill pipe storage and retrieval, is simple to operate, has reliable performance, and is easy to maintain.

[0004] The technical problem it aims to solve can be addressed through the following technical solutions.

[0005] A drill pipe storage and retrieval device, characterized in that it includes a drive sprocket driven by a drive shaft and a driven sprocket connected to a driven shaft, the drive sprocket and the driven sprocket being linked by an engaging transmission chain (400); the transmission chain is provided with a plurality of positioning parts for storing drill pipes, each positioning part being provided with a positioning element for fastening the stored drill pipe and ensuring that the drill pipe can move with the transmission chain; and

[0006] A detection device capable of monitoring whether one or more of any three consecutive positioning sections contain drill rods, the detection device being electrically connected to the drive mechanism of the drive shaft.

[0007] As a further improvement to this technical solution, the detection device includes a first magnetic sensor, a second magnetic sensor, and a third magnetic sensor. The first magnetic sensor is used to monitor the storage status of a drill rod in a preset 0-position positioning part among the plurality of positioning parts. The second magnetic sensor is used to detect the positioning element of the adjacent positioning part in the clockwise direction of the 0-position positioning part. The third magnetic sensor is used to detect the positioning element of the adjacent positioning part in the counterclockwise direction of the 0-position positioning part.

[0008] In a preferred embodiment of the present invention, the positioning element is an elastic snap fastener.

[0009] Furthermore, the elastic buckle is connected and fixed to the transmission chain via a connecting plate. One side of the connecting plate is provided with a bent plate, which forms the identification component of the elastic buckle for the detection device to identify.

[0010] As a further improvement to this technical solution, the device includes at least two sets of synchronous transmission chains, with corresponding positioning parts on different transmission chains used to position different sections of the same drill pipe stored thereon.

[0011] As a further improvement to this technical solution, the axial distance between the driving shaft and the driven shaft is adjustable.

[0012] Preferably, the two ends of the drive shaft and the driven shaft are positioned on the two side plates of a drill pipe magazine enclosed by a frame and a surrounding panel; the top of the drill pipe magazine is provided with an opening for easy access to drill pipes.

[0013] Preferably, the drive mechanism of the drive shaft is a reversible drive mechanism, and also includes a brake device that can stop the rotation of the shaft.

[0014] As a further improvement to this technical solution, the first magnetic sensor is positioned on a rod parallel to the drive shaft, and the rod is located on the upper part of the drive shaft.

[0015] Furthermore, the at least two sets of transmission chains that are synchronized share a single set of the detection device.

[0016] The drill pipe storage and retrieval device using the above technical solution has the following advantages:

[0017] 1. It can accommodate multiple drill pipes and can be repeatedly disassembled and assembled; it is easy to operate, reliable in performance, and easy to maintain.

[0018] 2. In terms of power, only one hydraulic motor is installed, which simplifies the power system;

[0019] 3. The sensor ensures the accuracy of drill pipe positioning and simplifies operation;

[0020] 4. Effectively reduces auxiliary operation time for drilling with exploration drilling rigs, improving work efficiency;

[0021] 5. It reduces the labor intensity of staff and saves labor costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the drill pipe storage and retrieval device of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal assembly of the drill rod in the drill rod storage and retrieval device of the present invention; the enlarged view in the figure is a schematic diagram of the spring clip clamping the drill rod;

[0024] Figure 3 This is a schematic diagram of the drill pipe storage and retrieval device of the present invention when no drill pipe is installed;

[0025] Figure 4 yes Figure 3The view from direction A in the diagram is a schematic diagram of the sensor's location;

[0026] Figure 5 yes Figure 2 The section view along line B in the figure is a schematic diagram of the sensor detecting the drill pipe;

[0027] Figure 6 This is a schematic diagram of the sensor mounting structure;

[0028] Figure 7 This is a schematic diagram of the mounting structure of the adjusting screw on the lower rotating shaft of the present invention;

[0029] Figure 8 This is a schematic diagram showing the adjustment screw of the lower rotating shaft of the present invention adjusting the shaft pitch position; wherein, Figure 8 a and Figure 8 b indicates the two adjustment positions respectively;

[0030] Figure 9 This is a schematic diagram of the chain structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the spring clip structure of the present invention;

[0032] In the diagram: 100 – Drill pipe

[0033] 210 – External sheet metal; 220 – Base frame; 230 – Fixed frame side beam; 240, 250 – Side plate; 251 – Waist-shaped hole; 260 – Opening.

[0034] 310, 320 – Rotating shaft; 311 – Upper bearing housing; 312 – Lower bearing housing; 313 – Adjusting screw; 314 – Bolt; 315 – Nut; 316 – Adjusting plate; 330 – Hydraulic motor; 340 – Hydraulic brake.

[0035] 400 - Chain; 410 - Spring clip; 420 - Connecting plate; 421 - Small curved plate

[0036] 500 – Mounting bracket; 510, 520, 530 – Magnetic sensors; 511, 521, 531 – Detection positions; 540, 550 – Mounting plates

[0037] 610, 620 - Sprockets Detailed Implementation

[0038] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] This invention provides an integrated automatic drill pipe storage and retrieval device, the purpose of which is to provide a device with simple structure and high working efficiency for automatic drill pipe storage and retrieval.

[0040] Reference Figures 1 to 10 This automatic drill pipe storage and retrieval device consists of five parts: a drill pipe rotation device, a drill pipe clamping device, a drill pipe positioning detection device, a mounting frame, and the drill pipe itself.

[0041] Depend on Figure 3 As can be seen, the drill pipe rotation device consists of a hydraulic motor 330, a hydraulic brake 340, rotating shafts on the upper and lower sides (i.e., shafts 310 and 320), sprockets 610 and 620, and a chain 400. The hydraulic motor 330 primarily serves as the power source to drive the sprockets to rotate, which in turn drives the chain to rotate. Specifically, the shaft 310, acting as the drive shaft, is driven by the hydraulic motor 330 and is connected to the sprocket 610 via a bearing. The shaft 320, acting as the driven shaft, is connected to the sprocket 620 via a bearing. The linkage between the drive shaft and the driven shaft is achieved through the meshing of the chain 400 with the sprockets 610 and 620.

[0042] The drill rod clamping device consists of a chain 400 and multiple spring clips 410. The multiple spring clips 410 are riveted to the chain 400 by bolts, and then the drill rod 100 is clamped by the spring clips 410, so that the drill rod 100 can rotate with the chain.

[0043] Reference Figure 3 There are three sets of chains 400 connecting the upper and lower sprockets, and corresponding spring clips form three support positions for the drill rod. Each spring clip 410 is riveted to the corresponding chain position via a connecting plate 420; the three spring clips 410 in a group of corresponding positions work together to position the same drill rod and remain in a fixed state. As the chain rotates, they move within the internal storage space (i.e., the so-called drill rod magazine) enclosed by the outer sheet metal 210.

[0044] The mounting frame is assembled from an outer sheet metal frame 210, a base frame 220, a fixed frame side beam 230, and side plates 240 and 250 on both sides. Bearing seats for rotating shafts 310 and 320 are provided on the side plates. The lower bearing seat 312 can be adjusted vertically using an adjusting screw 313, facilitating the assembly and disassembly of the chain 400. Figure 7As shown, the upper end of the adjusting screw 313 is riveted to the lower bearing seat 312 by an M24 bolt 314; the lower end is connected to the adjusting plate 316 via an adjusting nut 315, and the adjusting plate 316 is fixed to the side plate 250. In practical applications, the adjusting screw 313 can be adjusted as needed. When the position of the adjusting screw is adjusted, the M20 nuts 315 on the upper and lower parts of the adjusting plate 316 can be tightened, thus fixing the position of the adjusting screw 313. This further enables the adjustment of the positional distance between the bolt 314 and the adjusting plate 316, thereby allowing the adjustment of the relative vertical position of the lower bearing seat 312 within the oblong hole 251 on the side plate 250. For example, when it is necessary to disassemble the chain 400, the position of the lower bearing seat 312 is moved upward, causing the lower rotating shaft 320 to drive the sprocket 620 upward. The engagement of the sprocket 620 teeth with the chain facilitates the disassembly of the chain. (Refer to...) Figure 8 , Figure 8 a and Figure 8 b indicates the two extreme positions of the bearing housing.

[0045] The upper bearing housing 311 is riveted to the side plate, and the oblong slot on the side plate allows the lower bearing housing to move up and down within the slot. The position of the lower bearing housing is moved by adjusting the position of the adjusting screw, thereby changing the shaft spacing between the upper and lower rotating shafts.

[0046] The presence of the outer sheet metal 210 not only optimizes the appearance but also prevents personnel from accidentally touching it during drill rod rotation, thus preventing limb injuries and effectively ensuring personnel safety.

[0047] To facilitate access, an opening 260 is provided at the top of the enclosure formed by the outer sheet metal (i.e., the upper part of the drill pipe magazine is partially open) to facilitate the placement and removal of drill pipes. Correspondingly, the drill pipe positioning detection device consists of three magnetic sensors 510, 520, and 530, and a sensor mounting bracket 500. The mounting bracket 500 is a horizontal rod, one end of which is mounted on a side plate 240. The three aforementioned magnetic sensors are mounted on it via mounting plates 540 and 550. Magnetic sensor 510 is mounted on mounting plate 550, and magnetic sensors 520 and 530 are mounted on both ends of mounting plate 540. The three magnetic sensors correspond to three consecutive spring-loaded latch positions (corresponding to...). Figure 5 The three detection positions 511, 521, and 531 facilitate the detection of whether a drill rod is engaged (stored) on the spring clips corresponding to the three adjacent spring clip positions. The purpose is to detect whether the drill rod has rotated into position with the chain and to send a signal in time to control the motor to rotate forward, reverse, and stop. The presence of a rod can be identified by rotating to one position or by identifying it at multiple positions. In the illustration of this technical solution, identification is achieved at one position through forward and reverse control.

[0048] That is, three rows of sprockets are distributed between the upper and lower rotating shafts of the drill pipe magazine; the upper shaft (i.e., rotating shaft 310) is driven by the hydraulic motor 330 to rotate, which in turn drives the sprockets to rotate, and then drives the drill pipe to rotate clockwise or counterclockwise along the chain direction through chain transmission; at the same time, a drill pipe positioning detection device is installed at the other end of the drill pipe magazine (i.e., one end of the side plate 240); the corresponding sensor can be installed on the corresponding sensor mounting plate by screws.

[0049] When the target drill rod rotates to the top, the sensor in the middle position (i.e., magnetic sensor 510) detects that the drill rod is in position and then sends a signal to stop the hydraulic motor 330. The magnetic sensors 520 and 530 on both sides are used for the forward and reverse rotation of the motor, respectively. For example, when the motor rotates forward, the chain rotates clockwise until the sensor on the left (magnetic sensor 530 in the figure) detects the small bent plate 421 on the spring clip (see reference). Figure 10 The part that folds downward relative to the connecting plate, and refers to... Figure 5 Magnetic sensors 520 and 530 can actually locate the drill pipe storage position by detecting this small curved plate, and further use another magnetic sensor to identify whether there is a rod on the middle spring clip. At this time, the left sensor sends a signal. When the sensor directly above (magnetic sensor 510) detects a rod, the motor stops; otherwise, it continues to rotate until the sensor directly above detects a rod. The reverse is also true. In practical applications, the operator can select the forward and reverse rotation of the motor according to the position of the drill pipe in the drill pipe magazine. This can effectively save the time of drill pipe positioning (rotating to the top) and reduce the cumulative error of sensor detection.

[0050] The drill pipe storage and retrieval device of the present invention clamps the drill pipe using a spring clip, further rotates the drill pipe in the drill pipe magazine by means of chain drive, and uses multiple sensors to locate and detect the storage status of the drill pipe, thereby improving the storage and retrieval efficiency of the drill pipe, improving the accuracy of drill pipe positioning, and realizing the simplification and convenience of operation.

Claims

1. A drill pipe storage and retrieval device, characterized in that, It includes a drive sprocket (610) driven by a drive shaft (310) and a driven sprocket (620) connected to a driven shaft (320). The drive sprocket (610) and the driven sprocket (620) are linked by a meshing transmission chain (400). The transmission chain (400) is provided with a plurality of positioning parts for storing drill rods. Each positioning part is provided with a positioning element for fastening the stored drill rod and keeping the drill rod able to move with the transmission chain. as well as A detection device capable of monitoring whether one or more of any three consecutive positioning sections contain drill rods, the detection device being electrically connected to the drive mechanism of the drive shaft (310); The detection device includes a first magnetic sensor (510), a second magnetic sensor (520), and a third magnetic sensor (530). The first magnetic sensor (510) is used to monitor the storage status of a drill rod in a preset 0-position positioning part among the plurality of positioning parts. The second magnetic sensor (520) is used to detect the positioning element of the adjacent positioning part in the clockwise direction of the 0-position positioning part. The third magnetic sensor (530) is used to detect the positioning element of the adjacent positioning part in the counterclockwise direction of the 0-position positioning part. The positioning element is an elastic buckle (410); the drive mechanism of the drive shaft (310) is a forward and reverse drive mechanism, and also includes a brake device that can stop the rotation of the shaft; the three magnetic sensors correspond to three consecutive elastic buckles, so as to facilitate the detection of whether the drill rod is stored on the elastic buckle corresponding to the three adjacent positioning parts, so as to detect whether the drill rod is in place with the chain and send a signal in time to control the motor to rotate forward and reverse and stop.

2. The drill pipe storage and retrieval device according to claim 1, characterized in that, The elastic buckle (410) is connected and fixed to the transmission chain (400) via a connecting plate (420). A bent fold plate (421) is provided on one side of the connecting plate (420), and the fold plate (421) forms the identified component of the elastic buckle for the detection device to identify.

3. The drill pipe storage and retrieval device according to claim 1, characterized in that, The device includes at least two sets of synchronous drive chains (400), with corresponding positioning parts on different drive chains used to position different sections of the same drill pipe.

4. The drill pipe storage and retrieval device according to claim 1, characterized in that, The distance between the drive shaft (310) and the driven shaft (320) is adjustable.

5. The drill pipe storage and retrieval device according to claim 1, characterized in that, The two ends of the drive shaft (310) and driven shaft (320) are positioned on the two side plates of a drill pipe magazine enclosed by a frame and a surrounding panel; the top of the drill pipe magazine is provided with an opening for easy access to drill pipes.

6. The drill pipe storage and retrieval device according to claim 1, characterized in that, The first magnetic sensor (510) is positioned on a rod (500) parallel to the drive shaft (310), and the rod (500) is located on the upper part of the drive shaft (310).

7. The drill pipe storage and retrieval device according to claim 3, characterized in that, The at least two sets of synchronous transmission chains (400) share a set of the detection device.

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