A forward-convex drilling device for geological prospecting

Abstract

The present invention relates to the field of drilling technology, and provides a forward-convex drilling equipment for geological prospecting, including an elevator with a slide and a rotating rod with a threaded joint at the bottom, the rotating rod is rotatably arranged on the slide of the elevator, and the rotational power of the rotating rod is provided by a driving structure; it also includes a support plate with a sliding frame, the support plate is provided with two pieces, and the two support plates are respectively fixed at the upper and lower positions of the side wall of the elevator body. The present invention uses cylinder I to drive the rod frame to translate to the left, so that the drill rod on the rod frame is aligned with the threaded joint, and the driving structure composed of a motor and a gear box drives the rotating rod to rotate, so that the inner thread sleeve and the threaded joint are completed to rotate and dock, and then the elevator is precisely controlled to ensure that the outer thread end of the new drill rod is aligned with the inner thread sleeve of the drill rod inserted into the ground, and the splicing between the drill rods is completed through the driving structure. The whole process is efficient and fast, and no manual intervention is required.

Description

Technical Field

[0001] The invention relates to the technical field of drilling, in particular to a forward-convex drilling device for geological prospecting. Background Art

[0002] Geological prospecting is one of the main means of finding underground mineral deposits. It is of great significance in the fields of mining development, energy exploration, etc. In the process of geological prospecting, drilling equipment plays a vital role. By using professional drilling equipment, such as rotary drills, impact drills or rotary impact drills, core samples are drilled in the selected target area to understand the underground rock type, structural characteristics and mineralization.

[0003] When the existing drilling equipment is working, the motor must first be started to drive the drill bit to rotate. At the beginning of the operation, the motor drives the drill bit to move downward until it contacts the ground, and then continues to apply force to make the drill bit drill into the predetermined depth. As the drilling process proceeds, the drill bit will cut the rock and collect the core inside the drill pipe. When the core sample needs to be extracted, the motor drives the drill bit and the drill pipe to rise to the surface. After completing a drilling section, the staff will safely disassemble the drill pipe and take out the core sample for analysis from the drill pipe; however, due to the limited length of a single drill bit and drill pipe, when it is necessary to drill into deeper formations, it is often necessary to disassemble the existing drill pipe and connect a new drill pipe at its end, so as to gradually extend the drilling depth. At present, most of the drilling equipment on the market requires manual participation when performing drill pipe splicing operations, such as aligning the drill pipe, tightening the threaded connection, and checking the sealing. The speed of completing these operations is limited by the skill level and physical condition of the drillers, and the efficiency is difficult to improve. In addition, improper operation by the drillers may also lead to poor connection of the drill pipe, which in turn causes drilling accidents. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a forward-convex drilling device for geological prospecting that can automatically complete the drill rod splicing operation.

[0005] The technical scheme is as follows: a forward-convex drilling equipment for geological prospecting, comprising an elevator with a slide and a rotating rod with a threaded joint at the bottom end, the rotating rod is rotatably arranged on the slide of the elevator, and the rotational power of the rotating rod is provided by a driving structure; it also includes a support plate with a slide frame, the support plate is provided with two pieces, the two support plates are respectively fixed at the upper and lower positions of the side wall of the elevator body, and the slide frame is slidably matched with the corresponding support plate; it also includes a rod frame arranged between the two slide frames and a rod frame installed on the elevator The cylinder I is on the side wall of the fuselage of the helicopter, and the movable end of the cylinder I is fixedly connected to the rod frame, and a pair of hanging plates are fixedly arranged on the top of the rod frame; it also includes a drill rod with an inner screw sleeve on the top, and there is a gap between the two hanging plates for the drill rod to pass through, and the drill rod is hung between the two hanging plates through the inner screw sleeve; the inner screw sleeve is adapted to the threaded joint of the rotating rod, and the bottom end of the drill rod is arranged to be an outer screw end, and the outer screw end is adapted to the inner screw sleeve on the other drill rod; it also includes a limiting structure for limiting the rotation of the drill rod.

[0006] Furthermore, the driving structure is a gear box installed on the slide and a motor installed on the gear box. The top end of the rotating rod is rotationally matched with the gear box, and the motor drives the rotating rod to rotate through the gear box.

[0007] Furthermore, the limiting structure includes limiting plates arranged in pairs at the left position of the top of the rod frame and clamping strips symmetrically arranged on the inner screw sleeve. A reset structure is provided between the limiting plates and the rod frame, and the clamping strips are in contact with the two limiting plates in pairs.

[0008] Furthermore, the limiting structure also includes a slide frame slidably arranged on the top of the rod frame, and the slide frame is provided with protruding rods whose number is the same as the limiting plates and which slide through the top of the rod frame, and the protruding rods are fitted with the corresponding limiting plates; a cylinder II whose movable end is fixedly connected to the slide frame is also installed on the upper part of the rod frame.

[0009] Furthermore, a rod sleeve is fixedly provided on the rotating rod, an electric push rod I is installed on the rod sleeve, a movable end of the electric push rod I is fixedly connected to a limiting sleeve sleeved on the rotating rod, and a vertical groove matching with the clamping strip is opened on the limiting sleeve.

[0010] Furthermore, the bottom of the lift is fixedly connected to a hollow frame with positioning holes, a pair of electric push rods II are installed on the hollow frame in opposite directions, and jackets are provided on the movable ends of the two electric push rods II.

[0011] Furthermore, a conveyor belt is installed on the upper part of the rod frame, and paddles are arranged on the conveyor belt at equal intervals. The drill rod is located between two adjacent paddles, and when the conveyor belt is running, the paddles drive the drill rod to slide.

[0012] Furthermore, a pair of anti-slipping plates are rotatably arranged at the right position of the top of the rod frame, a reset structure is arranged between the anti-slipping plates and the top of the rod frame, and a stop rod is also arranged at the top of the rod frame to limit the anti-slipping plates from rotating in one direction.

[0013] Compared with the prior art, the present invention has the following advantages: the present invention adopts cylinder I to drive the rod frame to translate to the left, so that the drill rod on the rod frame is aligned with the threaded joint, and the driving structure composed of the motor and the gear box drives the rotating rod to rotate, so that the inner thread sleeve and the threaded joint are completed with rotation and docking, and then the slide is smoothly lowered by precise control of the elevator to ensure that the outer thread end of the new drill rod is aligned with the inner thread sleeve of the drill rod inserted into the ground, and the splicing operation between the drill rods is completed by the driving structure, thereby realizing automatic splicing of the drill rods, and the whole process is efficient and fast, and no manual intervention is required; the motor converts the power smoothly through the deceleration and torque increase effect of the gear box, ensuring that the power output during the rotation of the rotating rod is stable and fully controllable, which greatly improves the efficiency and accuracy of the drilling operation; through the design of the limiting structure, the arbitrary rotation of the drill rod is effectively limited during the splicing of the drill rod and the threaded joint, ensuring that the two are accurately aligned and the docking is completed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the driving structure of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the limiting sleeve of the present invention.

[0017] Figure 4 It is a partial structural schematic diagram of the present invention.

[0018] Figure 5 It is a schematic diagram of the upper part of the drill pipe of the present invention.

[0019] Figure 6 It is a schematic diagram of the structure of the conveyor belt and the paddle of the present invention.

[0020] Figure 7 It is a structural schematic diagram of the limiting part of the present invention.

[0021] Figure 8 It is a structural schematic diagram of the hollow frame, electric push rod II and jacket of the present invention.

[0022] The names and serial numbers of the parts in the figure are: 1-lifting machine, 11-slide, 2-gear box, 21-motor, 22-rotating rod, 221-threaded joint, 23-rod sleeve, 231-electric push rod I, 232-limiting sleeve, 233-vertical slot, 3-support plate, 31-slide frame, 32-rod frame, 33-suspension plate, 4-cylinder I, 5-drill rod, 51-inner thread sleeve, 511-card strip, 52-outer thread end, 6-convex belt, 61-paddle, 7-slide, 71-convex rod, 72-cylinder II, 73-limiting plate, 8-anti-slip plate, 81-stop rod, 9-hollow frame, 911-positioning hole, 91-electric push rod II, 92-jacket. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0024] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0025] See also Figure 1 and Figure 2 The embodiment of the present invention provides a forward-convex drilling device for geological prospecting, including an elevator 1 with a slide 11 and a rotating rod 22 with a threaded joint 221 at the bottom. The elevator 1 can control the slide 11 to move up and down, and the rotating rod 22 is rotatably arranged in the middle of the slide 11. Figure 2 A gear box 2 is installed on the slide 11, and a motor 21 is installed on the top of the gear box 2. The output shaft of the motor 21 extends into the gear box 2 and cooperates with the internal structure of the gear box 2. The top of the rotating rod 22 also extends into the gear box 2 and cooperates with the internal structure of the gear box 2. When the motor 21 is started, the rotating rod 22 can be driven to rotate stably through the deceleration and torque increase effect of the gear box 2.

[0026] See also Figure 1 and Figure 4In the embodiment of the present invention, a support plate 3 is fixedly connected to the upper and lower parts of the right side wall of the lift 1 by bolts, and a slide frame 31 is slidably provided on the two support plates 3, a rod frame 32 is fixedly connected between the two slide frames 31, and the rod frame 32 is assembled by two circular frames. A cylinder Ⅰ4 is also installed on the right side wall of the lift 1 body, and the movable end of the cylinder Ⅰ4 is fixedly connected to the rod frame 32. Initially, the movable end of the cylinder Ⅰ4 extends out and pushes the rod frame 32 to the right side of the lift 1; in the embodiment of the present invention, a drill rod 5 with an inner screw sleeve 51 on the top is also included, and the drill rod 5 is placed between the two circular frames of the rod frame 32, and the tops of the two circular frames of the rod frame 32 are both provided with a hanging plate 33, and a gap just enough for the drill rod 5 to pass is left between the two hanging plates 33, see Figure 5 The outer diameter of the inner thread sleeve 51 is larger than that of the drill rod 5 , and the drill rod 5 is suspended in the gap reserved between the two suspension plates 33 by means of the inner thread sleeve 51 at the top thereof.

[0027] See also Figure 2 , Figure 4 and Figure 5 In the embodiment of the present invention, the threaded joint 221 at the bottom of the rotating rod 22 is matched with the inner thread sleeve 51 of the drill rod 5. When the threaded joint 221 is in contact with the inner thread sleeve 51, rotating the threaded joint 221 clockwise can make the threaded joint 221 rotate into the inner thread sleeve 51, so that the two are connected; the bottom end of the drill rod 5 is set as an external thread end 52, and the external thread end 52 and the inner thread sleeve 51 at the top thereof are adapted to each other, and the two drill rods 5 are spliced ​​by the rotational cooperation between the external thread end 52 and the inner thread sleeve 51.

[0028] Please refer to 7. In the embodiment of the present invention, two limit plates 73 are rotatably provided at the left position of the top of the two circular frames of the rod frame 32. The limit plates 73 located at the same position of the two circular frames are matched with each other, and a torsion spring for resetting is provided between the limit plates 73 and the circular frames of the rod frame 32. The inner screw sleeve 51 of the drill rod 5 is symmetrically provided with a clamping strip 511, and the clamping strip 511 is inserted between the two matched limit plates 73. A slide 7 is slidably provided at the left position of the top of the rod frame 32. The slide 7 is provided with four convex rods 71 ​​that slide through the top of the rod frame 32. The four convex rods 71 ​​correspond to the four limit plates 73 respectively, and are When the protruding rod 71 passes through the top of the rod frame 32 upward, the limiting plate 73 is limited, so that the limiting plate 73 cannot rotate. At the same time, the clamping strip 511 inserted between the limiting plates 73 is also limited, thereby achieving the effect of limiting the rotation and movement of the drill rod 5; a cylinder II 72 is also installed on the upper part of the rod frame 32, and the movable end of the cylinder II 72 is fixedly connected to the slide 7. When the movable end of the cylinder II 72 is extended, the slide 7 is pushed up, thereby causing the protruding rod 71 to pass through the top of the rod frame 32 upward. When the movable end of the cylinder II 72 is contracted, the slide 7 is pulled down, thereby causing the protruding rod 71 to descend and release the limitation on the limiting plate 73.

[0029] Please refer to 2. Figure 3 and Figure 8 In the embodiment of the present invention, a rod sleeve 23 is fixedly provided in the middle of the rotating rod 22, and two electric push rods Ⅰ231 with movable ends facing downward are vertically installed on the rod sleeve 23, and the movable ends of the two electric push rods Ⅰ231 are fixedly connected to the limiting sleeve 232 sleeved on the rotating rod 22. When the electric push rod Ⅰ231 is started, its movable end is extended or contracted, which can make the limiting sleeve 232 descend or rise, and two vertical grooves 233 that match the clamping strip 511 are symmetrically opened on the limiting sleeve 232. When the drill rod 5 and the threaded joint 221 are spliced, if the electric push rod Ⅰ231 is used to make the limiting sleeve 232 descend until the clamping strip 511 is embedded in the vertical groove 233, the drill rod 5 is locked on the rotating rod 22, and the rotating rod 22 is locked. When the rod 22 rotates, the drill rod 5 will rotate synchronously therewith. Even if the rotating rod 22 rotates counterclockwise, the drill rod 5 can still be firmly maintained on the rotating rod 22 and will not fall off. The bottom of the elevator 1 is fixedly connected to a hollow frame 9 with a positioning hole 911. The positioning hole 911 on the hollow frame 9 corresponds to the drilling position, and a pair of electric push rods II 91 are installed on the hollow frame 9 in opposite directions. The movable ends of the two electric push rods II 91 are both provided with jackets 92. After the initial drill rod 5 is driven into the ground, the electric push rod II 91 is started to make the two jackets 92 close to the initial drill rod 5. Then, the motor 21 is used to drive the rotating rod 22 to rotate counterclockwise, so that the threaded joint 221 can be separated from the inner thread sleeve 51 of the initial drill rod 5.

[0030] Taking the splicing of two drill rods 5 as an example, the working principle of the embodiment of the present invention is described as follows: first, the cylinder I4 needs to be started, and the slide frame 31 is cooperated to pull the rod frame 32 to the left as a whole, until the leftmost drill rod 5 on the rod frame 32 contacts the threaded joint 221, and the cylinder II is started to push the slide frame 7 upward until the protruding rod 71 passes through the top of the rod frame 32 and limits the limiting plate 73, and then the motor 21 is started to drive the rotating rod 22 to rotate clockwise through the gear box 2, so that the threaded joint 221 is screwed into the inner thread sleeve 51, and the splicing of the first drill rod 5 is completed;

[0031] After the first drill rod 5 is driven into the ground, the two electric push rods II 91 need to be started, and the first drill rod 5 is clamped and limited with the jacket 92 to prevent it from rotating at will. Then, the motor 21 drives the rotating rod 22 to rotate counterclockwise, so that the threaded joint 221 is disengaged from the inner thread sleeve 51 of the first drill rod 5, and then the slide 11 is raised to an appropriate height by the elevator 1, and then the splicing steps of the drill rod 5 and the threaded joint 221 are repeated. After the second drill rod 5 and the threaded joint 221 are spliced, the elevator 1 is used to drive the slide 11 to descend, so that the outer thread end 52 of the second drill rod 5 is in contact with the inner thread sleeve 51 of the first drill rod 5. Subsequently, under the power provided by the motor 21, the splicing between the first drill rod 5 and the second drill rod 5 is completed, and then the movable end of the electric push rod II 91 is retracted to release the limit lock of the jacket 92 on the first drill rod 5, and then drilling can continue to be carried out deeper underground.

[0032] After drilling is completed, the electric push rod Ⅰ231 is started to extend its movable end, pushing the limit sleeve 232 to slide down, so that the clamping strip 511 on the second drill rod 5 is embedded in the vertical groove 233, and the second drill rod 5 is first locked with the threaded joint 221. Subsequently, under the power provided by the motor 21, the second drill rod 5 will first be separated from the first drill rod 5, and then the limit sleeve 232 will be reset by the electric push rod Ⅰ231 to unlock the second drill rod 5 and the threaded joint 221. Then, the electric push rod Ⅰ231 is used to drive the threaded joint 221 to rotate counterclockwise, so that the second drill rod 5 can be separated from the threaded joint 221.

[0033] See 6 and Figure 7 , a conveyor belt 6 is installed on the upper part of the rod frame 32, and paddles 61 are arranged on the conveyor belt 6 at equal intervals. The drill rod 5 is located between two adjacent paddles 61. After the threaded joint 221 and the first drill rod 5 are spliced, the movable end of the cylinder Ⅰ4 is extended to reset the rod frame 32 to the right. Since the position of the first drill rod 5 is relatively fixed at this time, when the rod frame 32 moves to the right, the first drill rod 5 cooperates with the paddle 61 to make the conveyor belt 6 run clockwise, and the paddle 61 is used to move the first drill rod 5 to the right. The next drill rod 5 is pushed to the left part of the rod frame 32 for subsequent splicing; an anti-slip sheet 8 is respectively arranged at the right position on the top of the two circular frames of the rod frame 32, a torsion spring is arranged between the anti-slip sheet 8 and the top of the rod frame 32, and a baffle 81 is also fixedly arranged on the right part of the anti-slip sheet 8, and the baffle 81 can prevent the anti-slip sheet 8 from rotating to the right. After the drill rod 5 is placed on the rod frame 32, it will not slip off the right part of the rod frame 32, but the drill rod 5 can be smoothly sent into the rod frame 32 from right to left.

[0034] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

[0035] The above are only optional 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. A forward-convex drilling device for geological prospecting, comprising an elevator (1) with a slide (11) and a rotating rod (22) with a threaded joint (221) at the bottom end, wherein the rotating rod (22) is rotatably arranged on the slide (11) of the elevator (1), and the rotational power of the rotating rod (22) is provided by a driving structure; Its characteristics are: It also includes a support plate (3) with a sliding frame (31), wherein two support plates (3) are provided, and the two support plates (3) are respectively fixed at the upper and lower positions of the side wall of the body of the elevator (1), and the sliding frame (31) is slidably matched with the corresponding support plate (3); It also includes a rod frame (32) arranged between the two sliding frames (31) and a cylinder I (4) installed on the side wall of the body of the elevator (1), wherein the movable end of the cylinder I (4) is fixedly connected to the rod frame (32), and a pair of suspension plates (33) are fixedly arranged on the top of the rod frame (32); It also includes a drill rod (5) with an inner screw sleeve (51) on the top, a gap between the two hanging plates (33) that is just enough for the drill rod (5) to pass through, and the drill rod (5) is hung between the two hanging plates (33) through the inner screw sleeve (51); The inner thread sleeve (51) is matched with the threaded joint (221) of the rotating rod (22); the bottom end of the drill rod (5) is arranged as an outer thread end (52), and the outer thread end (52) is matched with the inner thread sleeve (51) on the other drill rod (5); It also includes a limiting structure for limiting the rotation of the drill rod (5).

2. A forward-convex drilling device for geological prospecting according to claim 1, characterized in that: The driving structure comprises a gear box (2) mounted on the slide (11) and a motor (21) mounted on the gear box (2); the top end of the rotating rod (22) is rotationally matched with the gear box (2); and the motor (21) drives the rotating rod (22) to rotate via the gear box (2).

3. A forward-convex drilling device for geological prospecting according to claim 2, characterized in that: The limiting structure comprises limiting plates (73) arranged in pairs at the top left position of the rod frame (32) and a clamping strip (511) symmetrically arranged on the inner screw sleeve (51), a reset structure is provided between the limiting plates (73) and the rod frame (32), and the clamping strip (511) is in contact with the two limiting plates (73) in the pair.

4. A forward-convex drilling device for geological prospecting according to claim 3, characterized in that: The limiting structure also includes a slide frame (7) slidably arranged on the top of the rod frame (32), the slide frame (7) being provided with protruding rods (71) whose number is the same as the limiting plates (73) and which slide through the top of the rod frame (32), the protruding rods (71) being fitted with corresponding limiting plates (73); and a cylinder II (72) whose movable end is fixedly connected to the slide frame (7) is also installed on the upper part of the rod frame (32).

5. A forward-convex drilling device for geological prospecting according to claim 4, characterized in that: A rod sleeve (23) is fixedly provided on the rotating rod (22), an electric push rod I (231) is mounted on the rod sleeve (23), a movable end of the electric push rod I (231) is fixedly connected to a limiting sleeve (232) sleeved on the rotating rod (22), and a vertical groove (233) is provided on the limiting sleeve (232) that fits with the clamping strip (511).

6. A forward-convex drilling device for geological prospecting according to claim 5, characterized in that: The bottom of the lift (1) is fixedly connected to a hollow frame (9) having a positioning hole (911). A pair of electric push rods II (91) are mounted on the hollow frame (9) in opposite directions. The movable ends of the two electric push rods II (91) are both provided with a jacket (92).

7. A forward-convex drilling device for geological prospecting according to claim 6, characterized in that: A conveyor belt (6) is installed on the upper part of the rod frame (32), and paddles (61) are arranged on the conveyor belt (6) at equal intervals. The drill rod (5) is located between two adjacent paddles (61), and when the conveyor belt (6) is running, the paddles (61) drive the drill rod (5) to slide.

8. A forward-convex drilling device for geological prospecting according to claim 7, characterized in that: A pair of anti-slipping plates (8) are rotatably arranged at the right position of the top of the rod frame (32), a reset structure is arranged between the anti-slipping plates (8) and the top of the rod frame (32), and a stop rod (81) is also arranged at the top of the rod frame (32) to limit the anti-slipping plates (8) from rotating in one direction.

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