Coalfield geological coring device

Abstract

The application provides a coalfield geological drilling coring device, which comprises a bottom plate, a through hole arranged in the middle of the bottom plate, a portal frame arranged above the through hole, a base plate arranged on the portal frame and capable of being lifted, a drilling mechanism comprising a driving motor fixedly arranged on the base plate and a driving head connected with the driving motor, a clamping mechanism comprising a base fixedly arranged on the bottom plate and a first clamping assembly and a second clamping assembly arranged on the base in a vertical direction, the first clamping assembly being arranged above the second clamping assembly and being in liftable connection with the base. The clamping mechanism arranged on the bottom plate can clamp and fix the drill pipe through the second clamping assembly when the drilling mechanism is separated from the drill pipe, and can clamp and position the newly installed drill pipe through the first clamping assembly. The clamped and positioned drill pipe does not need manual operation, and only needs to be pressed and rotated by the drilling mechanism to make the two ends of the drill pipe respectively threadedly connected with the driving head and the drill pipe arranged below.

Description

Technical Field

[0001] This application relates to the field of coalfield exploration technology, specifically to a coalfield geological drilling and coring device. Background Technology

[0002] Coalfield coring refers to the technical means of obtaining coal cores and surrounding rock core samples by drilling into underground coal seams using drilling equipment during the exploration of coal resources. Its core is to reveal information such as the physical properties, structure, thickness, coal-bearing properties and geological structure of coal seams through the collection and analysis of cylindrical core samples (usually with a diameter of 50-130mm).

[0003] In coalfield drilling and coring operations, drilling tools are the key tools for obtaining coal cores and surrounding rock core samples. As exploration needs continue to deepen, the coring depth is often large, and the length of a single drill rod is difficult to meet the requirements. Therefore, it is necessary to connect multiple drill rods to achieve the required drilling depth.

[0004] However, in existing technologies, the connection of multiple drill pipes mostly relies on manual operation; manual connection of drill pipes has many drawbacks: on the one hand, it requires a large amount of manpower, which increases the cost of exploration operations; on the other hand, the efficiency of manual operation is low, which seriously affects the progress of drilling and coring, and is difficult to meet the needs of large-scale coalfield exploration; therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a coalfield geological drilling and coring device.

[0006] This application provides a coalfield geological drilling and coring device, including...

[0007] A base plate, wherein a through opening is provided in the middle of the base plate, and a gantry frame is mounted above the through opening;

[0008] The gantry frame is equipped with a liftable base plate, and the base plate and the bottom plate are parallel to each other.

[0009] A drilling mechanism, comprising a drive motor fixedly mounted on the base plate and a drive head connected to the drive motor;

[0010] The drive motor is located above the substrate, and its output end extends to the bottom of the substrate and is connected to the drive head;

[0011] The drive head is provided with an external thread for connecting with the female thread on the drill rod.

[0012] A clamping mechanism, comprising a base fixedly mounted on a base plate and a first clamping assembly and a second clamping assembly arranged vertically on the base;

[0013] The first clamping component is located above the second clamping component and is vertically and vertically connected to the base.

[0014] Furthermore,

[0015] The first clamping assembly includes a sliding plate that is slidably mounted on the base;

[0016] The two sides of the slide are connected to the base via linear guide rails, and a gripper cylinder is fixedly installed in the middle.

[0017] The cylinder body of the gripper cylinder is located on the side of the slide plate closer to the base, and the gripper extends to the side of the slide plate away from the base;

[0018] The skateboard has a matching first strip hole corresponding to the gripper;

[0019] The base is provided with a matching second strip-shaped hole corresponding to the gripper cylinder.

[0020] Furthermore,

[0021] Roller sets are respectively installed on the two jaws for clamping the drill rod;

[0022] The roller assembly includes two parallel rollers and a mounting frame for mounting the rollers;

[0023] The mounting bracket is C-shaped and includes parallel mounting plates, with collinear mounting shafts on the sides of the two mounting plates that are far apart from each other.

[0024] The roller is located between the two mounting plates and is rotatably connected to the mounting plates.

[0025] Furthermore,

[0026] A return spring is also provided between the base and the sliding plate;

[0027] The return spring is fixedly installed on the base and located on the side of the slide away from the roller;

[0028] The slide plate is provided with a corresponding abutment plate corresponding to the reset spring, and is fixedly connected to the abutment plate.

[0029] Furthermore,

[0030] The second clamping assembly includes two clamping blocks slidably mounted on the base;

[0031] The base is provided with a slide rail for mounting the clamping block;

[0032] The slide rails consist of two parallel rails that extend horizontally.

[0033] The two clamping blocks are respectively straddled and mounted on the two slide rails, and are slidably connected to the slide rails.

[0034] Furthermore,

[0035] The clamping block is also provided with a driving unit;

[0036] The drive unit is located between the two slide rails and extends to the side of the base away from the clamping block;

[0037] The base has a through third strip hole corresponding to the drive unit, and a lead screw extending along the arrangement direction of the two drive units is provided at the third strip hole;

[0038] The two ends of the lead screw are respectively provided with reverse threads, and are rotatably connected to the base through bearings;

[0039] The two drive components are respectively sleeved on the lead screw and are threadedly connected to the lead screw.

[0040] Furthermore,

[0041] The lead screw is driven by a servo motor;

[0042] The servo motor is fixedly mounted on the base and connected to one end of the lead screw via a reducer.

[0043] Furthermore,

[0044] The gantry frame is connected to the base plate by screws;

[0045] The number of screws includes two, and they are parallel to each other;

[0046] The substrate has matching threaded holes at both ends corresponding to the screw.

[0047] Furthermore,

[0048] The top ends of the two screws respectively penetrate the crossbeam of the gantry frame, and corresponding worm gears are coaxially mounted thereon;

[0049] The top of the gantry frame is equipped with a worm gear parallel to the crossbeam;

[0050] The worm extends in a direction parallel to the direction of the crossbeam, and both ends are threadedly connected to the worm wheel to drive the two screws to rotate synchronously.

[0051] Furthermore,

[0052] The worm gear is driven by a stepper motor;

[0053] The stepper motor is located at one end of the crossbeam and is driven by the worm gear.

[0054] The advantages and positive effects of this application are:

[0055] This technical solution, by setting a clamping mechanism on the base plate, can clamp and fix the drill rod through the second clamping component when the drilling mechanism is separated from the drill rod, and can also clamp and position the newly installed drill rod through the first clamping component. After clamping and positioning, the drill rod does not require manual operation. It can be connected to the drive head and the drill rod threaded below by pressing down and rotating the drilling mechanism. Compared with the traditional manual connection, it is not only simple to operate, but also effectively improves the installation efficiency. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the structure of a coalfield geological drilling and coring device provided in an embodiment of this application;

[0057] Figure 2 A schematic diagram of the clamping mechanism of the coalfield geological drilling and coring device provided in this application embodiment;

[0058] Figure 3 A schematic diagram of the structure of the first clamping component of the coalfield geological drilling and coring device provided in the embodiments of this application;

[0059] Figure 4 A schematic diagram of the structure of the second clamping component of the coalfield geological drilling and coring device provided in the embodiments of this application.

[0060] The text labels in the diagram represent: 100-base plate; 110-through opening; 120-gantry frame; 130-base plate; 140-screw; 141-worm gear; 150-worm; 151-stepper motor; 200-drive motor; 210-drive head; 300-base; 310-slide plate; 320-gripper cylinder; 330-roller; 331-mounting bracket; 340-clamping block; 350-lead screw; 351-servo motor. Detailed Implementation

[0061] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0062] Please refer to Figure 1This embodiment provides a coalfield geological drilling and coring device, including a base plate 100, a through-hole 110 in the middle of the base plate 100, and a gantry frame 120 spanning above the through-hole 110; a liftable base plate 130 is provided on the gantry frame 120, and the base plate 130 is parallel to the base plate 100; a drilling mechanism, including a drive motor 200 fixedly mounted on the base plate 130 and a drive head 210 connected to the drive motor 200; the drive motor... Machine 200 is located above the base plate 130, and its output end extends to the bottom of the base plate 130 and is connected to the drive head 210; the drive head 210 is provided with external threads for threaded connection with the female head on the drill rod; clamping mechanism, the clamping mechanism includes a base 300 fixedly mounted on the base plate 100 and a first clamping assembly and a second clamping assembly arranged vertically on the base 300; the first clamping assembly is located above the second clamping assembly and is vertically connected to the base 300.

[0063] In this embodiment, the drilling mechanism is connected to the gantry frame 120 via the base plate 130, so that the drilling mechanism can not only drive the drill rod to rotate, but also drive the drill rod to sink; at the same time, a corresponding through hole 110 is provided on the base plate 100 directly below the drilling mechanism, so that the drill rod can pass through the base plate 100 and drill into the ground.

[0064] In this embodiment, the base 300 is fixedly installed on the base plate 100 and arranged in a triangle with the two columns of the gantry frame 120. The first clamping assembly and the second clamping assembly are respectively installed on the base 300 and arranged in the vertical direction. The second clamping assembly is installed at a lower height and is used to clamp and fix the drill rod underground to prevent the drill rod from continuing to sink after the drilling mechanism and the screw rod are separated. The first clamping assembly is installed at a higher height and can be raised and lowered relative to the base 300. When the drill rod needs to be reinstalled between the drill rod and the drilling mechanism, the operator only needs to place one end of the drill rod against the drill rod below and then clamp and position the drill rod through the first clamping assembly. Subsequently, by driving the drilling mechanism to descend and rotate, the drill rod can be threadedly connected to the drill rods of the drive heads 210 at both ends.

[0065] In this embodiment, the drive head 210 is conical and can automatically engage with the female end of the drill rod during the downward pressing process. With its rotation, it can complete the threaded connection with the female end. Since the first clamping component and the base 300 are installed in a lifting manner, the drill rod will also move downward after being subjected to pressure. With the drive of the drive head 210, it can also make a threaded connection with the female end of the drill rod below through its own male end.

[0066] In a preferred embodiment, the first clamping assembly includes a slide plate 310 slidably mounted on the base 300; the two sides of the slide plate 310 are respectively connected to the base 300 via linear guide rails, and a gripper cylinder 320 is fixedly mounted in the middle; the cylinder body of the gripper cylinder 320 is located on the side of the slide plate 310 closer to the base 300, and the gripper extends to the side of the slide plate 310 away from the base 300; the slide plate 310 is provided with a matching first strip hole corresponding to the gripper; the base 300 is provided with a matching second strip hole corresponding to the gripper cylinder 320.

[0067] In this embodiment, the gripper cylinder 320 is fixedly mounted on the slide plate 310 and is slidably connected to the base 300 through the slide plate 310, so that the gripper cylinder 320 can both clamp the drill rod and drive the drill rod to move up and down.

[0068] In this embodiment, the two sides of the slide plate 310 are connected to the base 300 by linear guide rails to ensure the stability of the slide plate 310; the base 300 is provided with a matching second strip hole in the middle of the two linear guide rails corresponding to the gripper cylinder 320, so that the movement of the gripper cylinder 320 is not restricted, and thus the installation distance between the slide plate 310 and the base 300 is not restricted.

[0069] In this embodiment, the jaws of the jaw cylinder 320 on the slide plate 310 are provided with corresponding first strip holes, so that the jaw cylinder 320 can clamp the drill rod located on the other side of the slide plate 310.

[0070] In a preferred embodiment, roller sets are respectively installed on the two grippers for clamping the drill rod; the roller sets include two parallel rollers 330 and a mounting frame 331 for mounting the rollers 330; the mounting frame 331 is C-shaped and includes parallel mounting plates, and the sides of the two mounting plates that are far apart from each other are respectively provided with collinear mounting shafts; the rollers 330 are located between the two mounting plates and are rotatably connected to the mounting plates.

[0071] In this embodiment, the gripper cylinder 320 clamps the drill rod through the roller assembly, so that the drill rod can rotate but cannot move axially; the roller assembly includes a mounting frame 331 connected to the gripper and two parallel rollers 330 rotatably mounted on the mounting frame 331.

[0072] In this embodiment, extension arms are respectively installed on the two grippers of the gripper cylinder 320; the mounting bracket 331 is connected to the extension arms through mounting shafts on both sides.

[0073] In a preferred embodiment, a return spring is further provided between the base 300 and the slide plate 310; the return spring is fixedly installed on the base 300 and located on the side of the slide plate 310 away from the roller 330; a corresponding abutment plate is provided on the slide plate 310 corresponding to the return spring, and is fixedly connected to the abutment plate.

[0074] In this embodiment, the bottom of the reset spring is fixedly installed on the base 300, and the extension direction is vertical; the slide plate 310 is provided with a corresponding abutment plate below the gripper cylinder 320 corresponding to the reset spring, so that the slide plate 310 can move down when installing the drill rod and automatically reset after being removed from the drill rod.

[0075] In a preferred embodiment, the second clamping assembly includes two clamping blocks 340 slidably mounted on the base 300; the base 300 is provided with slide rails for mounting the clamping blocks 340; the number of slide rails includes two, which are parallel to each other and extend in a horizontal direction; the two clamping blocks 340 are respectively straddled on the two slide rails and slidably connected to the slide rails.

[0076] In this embodiment, the second clamping assembly includes two clamping blocks 340 slidably mounted on the base 300; at the same time, the base 300 is also provided with parallel slide rails corresponding to the clamping blocks 340; the clamping blocks 340 are straddled between the two slide rails and connected to the slide rails by a slider, so that the two clamping blocks 340 can ensure that the sliding direction is the same and that the sliding stability is ensured.

[0077] In a preferred embodiment, the clamping block 340 is further provided with a driving part; the driving part is located between the two slide rails and extends to the side of the base 300 away from the clamping block 340; the base 300 is provided with a through third strip hole corresponding to the driving part, and a lead screw 350 extending along the arrangement direction of the two driving parts is provided at the third strip hole; the two ends of the lead screw 350 are respectively provided with reverse threads, and are rotatably connected to the base 300 through bearings; the two driving parts are respectively sleeved on the lead screw 350 and are threadedly connected to the lead screw 350.

[0078] In this embodiment, the two clamping blocks 340 are driven synchronously by the lead screw 350; wherein the lead screw 350 is located on the side of the base 300 away from the clamping blocks 340, and both ends are provided with reverse threads; the clamping blocks 340 are connected to the lead screw 350 by providing a protruding driving part.

[0079] In this embodiment, the base 300 is provided with a corresponding third strip hole for the driving part, so that the driving part can pass through the base 300 and be threadedly connected to the lead screw 350.

[0080] In a preferred embodiment, the lead screw 350 is driven by a servo motor 351; the servo motor 351 is fixedly mounted on the base 300 and is connected to one end of the lead screw 350 via a reducer.

[0081] In a preferred embodiment, the gantry frame 120 and the base plate 130 are connected by screws 140; the number of screws 140 includes two, and they are parallel to each other; the two ends of the base plate 130 are respectively provided with matching threaded holes corresponding to the screws 140.

[0082] In this embodiment, the two ends of the screw 140 are rotatably connected to the crossbeam of the gantry frame 120 and the base plate 100 through bearings, respectively; the two ends of the base plate 130 are threadedly connected to the corresponding screw 140, and the lifting and lowering of the base plate 130 can be achieved by driving the screw 140 to rotate.

[0083] In a preferred embodiment, the top ends of the two screws 140 respectively pass through the crossbeam of the gantry frame 120, and are coaxially mounted with corresponding worm gears 141; the top of the gantry frame 120 is provided with a worm 150 parallel to the crossbeam; the extension direction of the worm 150 is parallel to the extension direction of the crossbeam, and both ends are threadedly connected to the worm gears 141 respectively, for driving the two screws 140 to rotate synchronously.

[0084] In this embodiment, the worm gear 150 is rotatably mounted on the top of the gantry frame 120 and extends in a direction parallel to the extension direction of the crossbeam. It is used to synchronously drive the two screws 140, making the lifting and lowering of the substrate 130 more stable.

[0085] In a preferred embodiment, the worm gear 150 is driven by a stepper motor 151; the stepper motor 151 is located at one end of the crossbeam and is connected to the worm gear 150 in a driving manner.

[0086] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A coalfield geological drilling and coring device, characterized in that, include A base plate (100) has a through opening (110) in the middle, and a gantry frame (120) spans above the through opening (110). The gantry (120) is provided with a liftable base plate (130), and the base plate (130) and the base plate (100) are parallel to each other; The drilling mechanism includes a drive motor (200) fixedly mounted on the base plate (130) and a drive head (210) connected to the drive motor (200). The drive motor (200) is located above the substrate (130), and its output end extends to the bottom of the substrate (130) and is connected to the drive head (210). The drive head (210) is provided with an external thread for connecting with the female thread on the drill rod; The clamping mechanism includes a base (300) fixedly mounted on a base plate (100) and a first clamping component and a second clamping component arranged vertically on the base (300); The first clamping component is located above the second clamping component and is vertically and vertically connected to the base (300).

2. The coalfield geological drilling and coring device according to claim 1, characterized in that, The first clamping assembly includes a slide plate (310) that is slidably mounted on the base (300); The two sides of the slide plate (310) are connected to the base (300) via linear guide rails, and a gripper cylinder (320) is fixedly installed in the middle. The cylinder body of the gripper cylinder (320) is located on the side of the slide plate (310) closer to the base (300), and the gripper extends to the side of the slide plate (310) away from the base (300); The slide plate (310) has a matching first strip hole corresponding to the gripper; The base (300) is provided with a matching second strip hole corresponding to the gripper cylinder (320).

3. The coalfield geological drilling and coring device according to claim 2, characterized in that, Roller sets are respectively installed on the two jaws for clamping the drill rod; The roller assembly includes two parallel rollers (330) and a mounting bracket (331) for mounting the rollers (330). The mounting bracket (331) is C-shaped and includes parallel mounting plates, with collinear mounting shafts on the sides of the two mounting plates that are far apart from each other. The roller (330) is located between the two mounting plates and is rotatably connected to the mounting plates.

4. The coalfield geological drilling and coring device according to claim 3, characterized in that, A return spring is also provided between the base (300) and the slide plate (310); The reset spring is fixedly installed on the base (300) and located on the side of the slide plate (310) away from the roller (330); The slide plate (310) has a corresponding abutment plate corresponding to the reset spring, and is fixedly connected to the abutment plate.

5. The coalfield geological drilling and coring device according to claim 1, characterized in that, The second clamping assembly includes two clamping blocks (340) slidably mounted on the base (300); The base (300) is provided with a slide rail for mounting the clamp (340); The slide rails consist of two parallel rails that extend horizontally. The two clamps (340) are respectively mounted across the two slide rails and are slidably connected to the slide rails.

6. The coalfield geological drilling and coring device according to claim 5, characterized in that, The clamping block (340) is also provided with a driving part; The drive unit is located between the two slide rails and extends to the side of the base (300) away from the clamp (340); The base (300) has a through third strip hole corresponding to the drive unit, and a lead screw (350) extending along the arrangement direction of the two drive units is provided at the third strip hole. The lead screw (350) has reverse threads at both ends and is rotatably connected to the base (300) via bearings; The two drive parts are respectively sleeved on the lead screw (350) and threadedly connected to the lead screw (350).

7. The coalfield geological drilling and coring device according to claim 6, characterized in that, The lead screw (350) is driven by a servo motor (351); The servo motor (351) is fixedly mounted on the base (300) and connected to the lead screw (350) at one end via a reducer.

8. The coalfield geological drilling and coring device according to claim 1, characterized in that, The gantry (120) and the base plate (130) are connected by screws (140); The number of screws (140) includes two, and they are parallel to each other; The substrate (130) has matching threaded holes at both ends corresponding to the screw (140).

9. The coalfield geological drilling and coring device according to claim 8, characterized in that, The top ends of the two screws (140) respectively pass through the crossbeam of the gantry frame (120) and are coaxially mounted with corresponding worm gears (141). The top of the gantry (120) is provided with a worm gear (150) parallel to the crossbeam. The extension direction of the worm (150) is parallel to the extension direction of the crossbeam, and both ends are threadedly connected to the worm wheel (141) to drive the two screws (140) to rotate synchronously.

10. The coalfield geological drilling and coring device according to claim 9, characterized in that, The worm gear (150) is driven by a stepper motor (151); The stepper motor (151) is located at one end of the crossbeam and is driven to connect with the worm gear (150).

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