Exploration positioning device for engineering geology

Abstract

The invention discloses an exploration positioning device for engineering geology, which comprises a drilling machine and a drilling rod arranged on the drilling machine, a drilling box is arranged at the top of the drilling rod, a positioning assembly is arranged on the side edge of the drilling box, the positioning assembly comprises a roller, an angle sensor and a bracket, the bracket is fixedly connected with the drilling box, and the roller is arranged on the drilling box. The roller and the angle sensor are both arranged on the support, a supporting shaft set is arranged at the center of the roller in a penetrating mode, the two ends of the supporting shaft set are connected with the support in a penetrating mode through bearings, the ends of the supporting shaft set are connected with an end shaft of the angle sensor, and the angle sensor is electrically connected with a controller of the drilling machine. The roller is arranged and is in rolling contact with the drilling machine, meanwhile, the angle sensor is arranged, the convex shaft of the angle sensor is connected with the center shaft of the roller, the number of rotation turns of the roller can be monitored in real time, calculation is conducted in cooperation with the perimeter of the roller, then the descending depth of a drill rod is obtained, and positioning of a drill bit is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of drilling, in particular to an exploration and positioning device for engineering geology. Background Art

[0002] During the construction of some important projects (such as nuclear power plants and large dams), it is necessary to conduct geological exploration in order to obtain the geological structure, stratigraphic distribution, rock and soil properties of the corresponding site, determine whether there are adverse geological phenomena such as faults, landslides, mudslides, etc., and evaluate the stability of the site, which is directly related to the safe operation of the project.

[0003] When conducting engineering geological surveys, drilling equipment is often used to drill into strata at different depths and accurately understand the stratification of underground rock and soil, including the thickness of the soil layer, changes in rock properties, and the distribution of different rock layers. This is crucial for determining the foundation burial depth and selecting appropriate foundation treatment methods in engineering design.

[0004] At present, there are many types of drilling rigs in the disclosed prior art, such as a drilling rig disclosed in a Chinese patent with publication number CN85108010B, which includes a movable chassis, a support device and a drilling and lifting device including a drilling mast. The support device includes two hydraulic piston-cylinder devices, one end of which is hingedly connected to the rotating machine plate on the chassis, and the other end is hingedly connected to the guide device in the support device. The drilling mast piston-cylinder device is installed on the guide device so that the drilling mast can slide in the guide groove of the guide device. The device can be operated independently so that the drilling mast can swing up and down around an axis parallel to the rotating machine plate and rotate around the axis of the rotating support.

[0005] When using the drilling rig provided by the above patent to achieve drilling processing, it is necessary to control the drill mast to be in a vertical state, and install a drill rod under the drill box. The drill rod is controlled to rotate under the action of the drill box, and the drill rod moves along the length direction of the drill mast to achieve geological drilling. During the drilling process, it is necessary to add a corresponding number of drill rods according to the drilling task, and calculate the drilling depth by recording the number of drill rods and coordinating with the length of the drill rods, and then obtain the location of the drill bit to achieve the positioning of the drill bit. This depth calculation method is generally based on manual memory of the number of drill rods. If the memory is blurred, the staff is required to calculate the number of drill rods to be used based on the total number of drill rods and the remaining number of drill rods. This method takes a long time to calculate the remaining number of drill rods, affecting the entire drilling progress. In addition, due to human negligence, the total number of drill rods is sometimes impossible to determine, which is not conducive to the calculation of the drilling depth. In addition, even if the number of drill rods used is accurate, when calculating the depth of the drill bit and positioning it, the uppermost drill rod is very likely not completely immersed in the ground. This requires staff to hold a measuring tape to measure the length protruding from the ground and finally calculate the drilling depth. This operation is still relatively time-consuming, and the drill rods are placed vertically, which is inconvenient for staff to measure. Summary of the invention

[0006] The object of the present invention is to provide a prospecting and positioning device for engineering geology, aiming to improve the problem that the existing drill rig is inconvenient to accurately position the drill bit.

[0007] The present invention is realized as follows: A prospecting and positioning device for engineering geology includes a drill rig and a drill pipe arranged on the drill rig. A drill box is arranged at the top of the drill pipe, and a positioning component is arranged on the side of the drill box. The positioning component includes a roller, an angle sensor and a bracket. The bracket is fixedly connected to the drill box. The roller and the angle sensor are both arranged on the bracket. A support shaft group is penetrated through the center of the roller. Both ends of the support shaft group are connected through bearings and penetrate through the bracket, and the end is connected to the end shaft of the angle sensor. The angle sensor is electrically connected to the controller of the drill rig.

[0008] Preferably, the bracket includes a frame body and an end plate. The frame body is arranged in a U-shaped structure. The end plate is arranged on the top of the frame body and is connected to the drill box. The roller is located inside the frame body, and the angle sensor is located outside the frame body.

[0009] Preferably, a cross plate is vertically and fixedly arranged on the top of the frame body. A sliding card slot is arranged on the cross plate. An adjusting screw rod is arranged inside the sliding card slot, and one end is arranged as an opening. A sliding card plate is fixedly arranged at the bottom of the end plate. The sliding card plate is located in the sliding card slot and is threadedly sleeved on the adjusting screw rod.

[0010] Preferably, a ratchet main body is arranged on the side of the roller. A first plum blossom hole and a second plum blossom hole are respectively arranged in the middle of the roller and the ratchet main body. A synchronous shaft is penetrated through the first plum blossom hole and the second plum blossom hole.

[0011] Preferably, a pawl is arranged on the side of the ratchet main body. A convex column is fixedly arranged at the end of the pawl away from the ratchet main body. The convex column is inserted into a sleeve through a bearing connection. The sleeve is fixedly connected to the frame body.

[0012] Preferably, the support shaft group includes a shaft body and a spring. The shaft body penetrates through the synchronous shaft. There are two springs, which are distributed on both sides of the roller, and the adjacent ends respectively contact the roller and the ratchet main body.

[0013] Preferably, the support shaft group further includes two sets of thrust bearings. The two sets of thrust bearings are sleeved on the shaft body and are located at the adjacent ends of the two springs, and respectively directly contact the roller and the ratchet main body.

[0014] Preferably, the support shaft group further includes two driving plates. The two driving plates are respectively arranged at the ends of the two springs away from each other and are sleeved on the shaft body. A sliding hole is arranged on the shaft body. A bidirectional screw rod is arranged inside the sliding hole. The two ends of the bidirectional screw rod respectively penetrate through the two driving plates through threads.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention is provided with a roller, and the roller is in rolling contact with the drilling rig, and is also provided with an angle sensor, and the convex shaft of the angle sensor is connected with the central axis of the roller, so that the number of rotations of the roller can be monitored in real time, and the depth of the drill rod descent can be obtained by calculating in conjunction with the circumference of the roller, so as to realize the positioning of the drill bit, thus changing the current situation of manually memorizing and calculating the number of drill rods used and the descent depth.

[0017] 2. The present invention provides a ratchet body on the side of the roller, and the ratchet body and the roller sleeve are arranged on a synchronous shaft, so that the ratchet body and the roller rotate synchronously, and then the rotation of the roller when the drill box rises can be limited under the cooperation of the ratchet body and the pawl, thereby avoiding the angle sensor from recording in reverse, resulting in a decrease in the count and affecting the calculation of the drill rod depth.

[0018] 3. The present invention is provided with a sliding slot and a sliding card plate to realize the movable and stable connection between the frame and the end plate. In addition, an adjusting screw is provided in the sliding slot, and the end of the adjusting screw is connected to the output shaft of the motor. Therefore, the adjusting screw can be controlled to rotate under the operation of the motor to adjust the position of the frame relative to the end plate, so that the roller is out of contact with the drilling rig, thereby avoiding damage to the roller when the drill box rises. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the positioning assembly of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the first bracket of the present invention;

[0022] Figure 4 It is a schematic structural diagram of the first roller of the present invention;

[0023] Figure 5 is a schematic structural diagram of the second roller of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the support shaft group of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the shaft body of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the spring of the present invention;

[0027] Fig. 9 It is a schematic structural diagram of the second bracket of the present invention.

[0028] In the figure: 1, drilling rig; 2, drill rod; 4, positioning assembly; 41, roller; 411, ratchet body; 412, pawl; 413, boss; 414, synchronous shaft; 415, first plum blossom hole; 416, second plum blossom hole; 42, bracket; 421, frame; 422, cross plate; 423, sleeve; 424, threaded rod; 425, adjusting screw; 426, sliding slot; 427, sliding card plate; 428, end plate; 43, angle sensor; 44, support shaft group; 441, spring; 442, shaft body; 443, sliding hole; 444, bidirectional screw; 445, thrust bearing; 446, driving plate. DETAILED DESCRIPTION

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0031] Example 1

[0032] In order to accurately and efficiently measure the depth of the drill rod penetrating the ground, this embodiment adds a positioning component 4 to the existing drilling equipment. The positioning component 4 monitors the length of the drill rod's descent in real time, and then the depth of the borehole is obtained to achieve the positioning of the drill bit.

[0033] like Figure 1As shown in the figure, before introducing the positioning component 4, the drilling equipment will be briefly introduced first. The existing drilling equipment includes a power system, a drilling system, an operating system, an auxiliary system, etc. The power system includes an engine and a transmission system (including components such as a clutch, a transmission, and a drive shaft). The drilling system includes a drill pipe, a drill bit, and a feeding device. The feeding device is usually driven by a hydraulic system or a mechanical system, and can achieve stepless speed regulation and precise control. The operating system includes an operating console and a control system. The control system is usually composed of components such as sensors, controllers, and actuators. The auxiliary system includes a mud circulation system, a traveling device, a mast, and a hoisting device. The mud circulation system usually includes components such as a mud pump, a mud pipe, and a sedimentation tank. The traveling device is usually composed of crawlers, wheels, or rails, etc., and the specific type depends on the usage scenario and requirements of the drilling rig. The mast and the hoisting device are usually driven by a hydraulic system and can achieve the rapid lifting and precise adjustment of the drill pipe and the drill bit. For the specific structure of the drilling rig, reference can also be made to a drilling rig disclosed in a Chinese patent with the publication number CN85108010B, as well as a boom for a drilling rig and a drilling rig disclosed in a Chinese patent with the publication number CN109577867B.

[0034] As Figure 1 shown, in order to monitor the depth of the drill pipe descent through the operation of the positioning component 4, the positioning component 4 is arranged on the drill box. The drill box is arranged to be lifted and lowered on the mast of the drilling equipment (hereinafter referred to as the drilling rig 1), and its lifting and lowering are controlled by a hoisting device. A drill pipe 2 is connected below the drill box, and then the drill pipe 2 descends and rotates to realize the drilling process.

[0035] As Figure 2 、 Figure 3 shown, the positioning component 4 includes a roller 41, an angle sensor 43, and a bracket 42. The bracket 42 includes a frame body 421 and an end plate 428. The frame body 421 is arranged in a U-shaped structure. The end plate 428 is arranged on the top of the frame body 421 and is connected to the drill box by bolts. A support shaft group 44 is arranged through the center of the roller 41. Both ends of the support shaft group 44 are connected through bearings and penetrate through the bracket 42. At the same time, the roller 41 is in rolling contact with the mast of the drilling rig 1. The angle sensor 43 is arranged on the outside of the frame body 421 through a threaded rod 424 and a nut, and its end shaft is connected to the end of the support shaft group 44 through a coupling. During the process of the positioning component 4 descending with the drill box, the roller 41 rotates relative to the mast under the action of friction. At the same time, the angle sensor 43 monitors the number of turns of the roller 41 in real time and transmits it to the control system of the drilling rig 1, and records and displays it on the operating console. Therefore, the operator can view the depth of the drill pipe 2 descent at any time, and then position the drill bit, changing the current situation of manually memorizing the number of drill pipes 2 used and combining the length of the drill pipe 2 to obtain the depth of the drill bit.

[0036] As Figure 4 、 Figure 5As shown, in order to accurately record the depth of the drill rod descent through the angle sensor 43, a ratchet body 411 is provided on the side of the roller 41, and a first plum blossom hole 415 and a second plum blossom hole 416 are respectively provided in the middle of the roller 41 and the ratchet body 411, and a synchronization shaft 414 is provided through the first plum blossom hole 415 and the second plum blossom hole 416. Therefore, the roller 41 and the ratchet body 411 rotate synchronously, which means that when the ratchet body 411 stops rotating, the roller 41 also stops rotating. Then, during the rising process of the drill box, the rotation of the roller 41 is stopped, thereby preventing the angle sensor 43 from reversing and causing a decrease in the count.

[0037] In some embodiments, in order to achieve synchronous rotation of the roller 41 and the ratchet body 411, a pawl 412 is provided on the side of the ratchet body 411, and a boss 413 is fixedly provided at the end of the pawl 412 away from the ratchet body 411. The boss 413 is inserted into the sleeve 423 through a bearing connection, and the sleeve 423 is fixedly connected to the frame 421. Therefore, the pawl 412 is stably installed relative to the frame 421. The pawl 412 can also be stably connected to the ratchet body 411 under the action of its own gravity. Of course, the boss 413 can also be connected to the sleeve 423 through a torsion spring. Therefore, the pawl 412 can be controlled to be stably placed relative to the ratchet body 411, and at the same time, the pawl 412 is lifted relative to the ratchet body 411 to provide support for the rotation of the ratchet body 411.

[0038] In some embodiments, Figure 6 , Figure 7 , Figure 8 As shown, in order to stably install the roller 41, the support shaft group 44 includes a shaft body 442, a spring 441, two sets of thrust bearings 445 and two driving plates 446. The shaft body 442 runs through the synchronous shaft 414. Two springs 441 are provided and are distributed on both sides of the roller 41. The ends adjacent to each other are provided with thrust bearings 445. The two sets of thrust bearings 445 are sleeved on the shaft body 442 and directly contact the roller 41 and the ratchet body 411 respectively. The two driving plates 446 are respectively provided at the ends of the two springs 441 that are away from each other. The driving plate 446 is set to an annular structure, and the inner side is fixed An internal threaded tube is fixedly provided, and a driving plate 446 is sleeved on the shaft body 442. A sliding hole 443 is provided on the shaft body 442. A bidirectional screw 444 is provided inside the sliding hole 443. The internal threaded tube is located in the sliding hole 443, and both ends of the bidirectional screw 444 are respectively threaded through the two driving plates 446. Therefore, under the action of the bidirectional screw 444, the two driving plates 446 can be stably installed relative to the shaft body 442, and the spring 441 is in a compressed state, forcing the two thrust bearings 445 to squeeze the roller 41 and the ratchet body 411, so that the roller 41 is stably set in the middle of the shaft body 442. At the same time, the compression degree of the two springs 441 can be adjusted by rotating the bidirectional screw 444 to limit the range of left and right movement of the roller 41.

[0039] Example 2

[0040] like Fig. 9 As shown, on the basis of embodiment 1, in order to reduce the wear of the roller 41, a horizontal plate 422 can be vertically fixed on the top of the frame 421, a sliding slot 426 is provided on the horizontal plate 422, an adjusting screw 425 is provided inside the sliding slot 426, and one end is set to be open, a sliding card plate 427 is fixed at the bottom of the end plate 428, the sliding card plate 427 is located in the sliding slot 426, and the threaded sleeve is arranged on the adjusting screw 425, and a motor is installed at the end of the adjustable screw 425, and the motor is controlled by the control system of the drilling rig to work, and before the drill box drives the positioning assembly 4 to rise, the motor can control the adjustment screw 425 to rotate, forcing the frame 421 to move relative to the end plate 428, so that the roller 41 is out of contact with the mast, and avoids the wear of the roller 41 due to the rise. When the drill box and the positioning assembly rise to a high place, the motor rotates in the direction of rotation, forcing the roller 41 to contact with the mast, so that the depth of the drill rod descent is calculated by the rotation of the roller 41, and the drill bit is positioned.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An engineering geological exploration and positioning device, comprising a drilling rig (1) and a drill rod (2) arranged on the drilling rig (1), a drill box being arranged on the top of the drill rod (2), characterized in that: A positioning component (4) is provided on the side of the drill box. The positioning component (4) includes a roller (41), an angle sensor (43) and a bracket (42). The bracket (42) is fixedly connected to the drill box. The roller (41) and the angle sensor (43) are both arranged on the bracket (42). A support shaft group (44) is penetrated through the center of the roller (41). Both ends of the support shaft group (44) are connected through bearings and penetrated through the bracket (42), and the end part is connected to the end shaft of the angle sensor (43). The angle sensor (43) is electrically connected to the controller of the drilling rig (1).

2. The engineering geological exploration and positioning device according to claim 1, characterized in that: The bracket (42) includes a frame body (421) and an end plate (428). The frame body (421) is arranged in a U-shaped structure. The end plate (428) is arranged on the top of the frame body (421) and is connected to the drill box. The roller (41) is located inside the frame body (421), and the angle sensor (43) is located outside the frame body (421).

3. The engineering geological exploration and positioning device according to claim 2, characterized in that: A cross plate (422) is vertically and fixedly arranged on the top of the frame body (421). A sliding card slot (426) is arranged on the cross plate (422). An adjusting screw rod (425) is arranged inside the sliding card slot (426), and one end is set to be open. A sliding card plate (427) is fixedly arranged at the bottom of the end plate (428). The sliding card plate (427) is located in the sliding card slot (426) and is threadedly sleeved on the adjusting screw rod (425).

4. The engineering geological exploration and positioning device according to claim 1, characterized in that: A ratchet main body (411) is arranged on the side of the roller (41). A first plum blossom hole (415) and a second plum blossom hole (416) are respectively arranged in the middle of the roller (41) and the ratchet main body (411). A synchronous shaft (414) is penetrated through the first plum blossom hole (415) and the second plum blossom hole (416).

5. The engineering geological exploration and positioning device according to claim 4, characterized in that: A ratchet pawl (412) is arranged on the side of the ratchet main body (411). A convex column (413) is fixedly arranged at the end of the ratchet pawl (412) far away from the ratchet main body (411). The convex column (413) is inserted into a sleeve (423) through a bearing connection. The sleeve (423) is fixedly connected to the frame body (421).

6. The engineering geological exploration and positioning device according to claim 4, characterized in that: The support shaft group (44) includes a shaft body (442) and a spring (441). The shaft body (442) is penetrated through the synchronous shaft (414). There are two springs (441), which are distributed on both sides of the roller (41), and the adjacent ends are respectively in contact with the roller (41) and the ratchet main body (411).

7. The engineering geological exploration and positioning device according to claim 6, characterized in that: The support shaft group (44) further includes two sets of thrust bearings (445). The two sets of thrust bearings (445) are sleeved on the shaft body (442) and are located at the adjacent ends of the two springs (441), and are respectively in direct contact with the roller (41) and the ratchet main body (411).

8. The engineering geological exploration and positioning device according to claim 7, characterized in that: The support shaft group (44) also includes two driving plates (446), which are respectively arranged at one end of the two springs (441) away from each other and sleeved on the shaft body (442). A sliding hole (443) is arranged on the shaft body (442), and a bidirectional screw (444) is arranged on the inner side of the sliding hole (443). The two ends of the bidirectional screw (444) are respectively threaded through the two driving plates (446).

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