Device for preventing shale from being broken during sampling

Abstract

The utility model discloses a device for preventing shale from being broken during sampling. A fixing frame is horizontally suspended at the top of an operation table top through a side plate; the sampling assembly is longitudinally suspended at the top of the operation table top through a fixing frame; the clamping assembly comprises a pair of parallel supporting frames fixedly connected with the side plates, a two-way lead screw driven by a first motor is connected between the supporting frames in a coupling mode, and a pair of moving blocks moving in the opposite directions are connected to the two-way lead screw in a threaded mode. Push rods penetrating through the side plate sliding grooves are arranged on the inner side faces of the moving blocks, and clamping plates are arranged at the ends of the push rods. The first motor drives the bidirectional screw rod to rotate, so that the two groups of moving blocks move oppositely to drive the clamping plate to clamp the shale on the fixed operation table, and the sampling assembly can sample the shale conveniently. The arc-shaped clamping plate can clamp the shale in a surrounding manner, so that the clamping contact surface is increased, the clamping stability is enhanced, meanwhile, the shale can be protected in a surrounding manner, and the shale is prevented from being damaged due to movement, shaking and rotation of the shale caused by rotary sampling.

Description

Technical Field

[0001] The utility model specifically relates to a device for preventing shale sampling from being broken, and belongs to the technical field of shale. Background Art

[0002] Shale is a rock formed by dehydrated clay cementation. It is primarily composed of clay minerals (such as kaolinite and hydromica) and has a distinct thin-bedding structure. Depending on its composition, it can be classified as carbonaceous shale, calcareous shale, sandy shale, and siliceous shale. Siliceous shale is slightly stronger, while the others are relatively weak; the compressive strength of the rock blocks ranges from 19.61 to 68.65 MPa or less. Shale easily softens and expands when immersed in water, has a low deformation modulus, and exhibits extremely poor anti-sliding stability. When shale is sandwiched between two hard rock formations, it significantly impacts the stability of hydraulic structures. Therefore, it should be given full attention during engineering geological surveys.

[0003] Patent CN211452904U proposes a shale sampling device that facilitates quantitative sampling, including a workbench, a vertical rod fixedly connected to the upper surface of the workbench, a handwheel rotatably connected to the front surface of the vertical rod, and an embedded rod slidably connected to the inner side wall of the vertical rod; a sleeve is provided below the motor shaft, a first groove is provided on the outer side wall of the sleeve, and a disc is also provided, a sampling barrel is connected to the bottom of the disc, a second groove is provided on the outer side wall of the disc, a spring is installed in the second groove, and a connecting block is fixed to one end of the spring, half of the connecting block is sunken in the second groove, and when the connecting block is pressed, the connecting block is completely sunken in the second groove, and the connecting block is adapted to the first groove. When the connecting block is placed in the first groove, the sampling barrel is fixed. There are multiple sampling barrels, each with a different diameter and height. In this way, rock samples of different sizes can be obtained by replacing the sampling barrels.

[0004] When actually sampling shale, this patent directly samples the shale on the workbench. The shale is not clamped and fixed during sampling, and the position of the shale cannot be effectively controlled. The shale is prone to move during coring, resulting in an unstable coring process and easy shale breakage, thereby affecting the success rate of coring.

[0005] Therefore, it is necessary to propose a device to prevent shale sampling from breaking. Summary of the Invention

[0006] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a device for preventing shale samples from being broken.

[0007] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A device for preventing shale samples from breaking comprises an operating table 1, a fixing frame 2 being horizontally suspended on the top of the operating table through side panels;

[0009] The sampling assembly 4 fixed by the fixing frame 2 is suspended on the top of the operating table in the longitudinal direction; the clamping assembly 5 is fixed on the back of the side panel;

[0010] The clamping assembly 5 includes a pair of parallel support frames 3 fixed to the side plates, a bidirectional screw rod 52 driven by a first motor 51 is axially connected between the support frames, and a pair of moving blocks 53 that move in opposite directions are screwed onto the bidirectional screw rod 52;

[0011] Along the moving direction of the moving block 53, the side plate is provided with a matching sliding groove, the inner side surface of the moving block is provided with a push rod passing through the sliding groove, and the clamping plate is fixed to the end of the push rod.

[0012] The inner side surface of the moving block is attached to the outer side surface of the side plate.

[0013] A sliding rod parallel to the bidirectional screw rod 52 is provided between the support frames 3 , and a protrusion that slides along the sliding rod is fixed on the top of the moving block.

[0014] The bottom surface of the clamping plate is attached to the table top of the operating table.

[0015] A support seat is provided on the bottom surface of the support frame 3 , and the inner side surface of the support seat is fixedly connected to the operating table 1 .

[0016] The clamping plate 55 is arc-shaped.

[0017] The above-mentioned sampling component 4 includes a cylinder 41 fixedly installed on the top of the fixed frame 2; the telescopic end of the cylinder 41 is installed with a movable frame 42 at the bottom of the fixed frame 2; the second motor 43 is fixed in the movable frame 42, and the output end of the second motor 43 is fixedly connected to the sampling barrel 44 through the bottom of the movable frame 42; the lower end of the sampling barrel 44 is installed with a cutting blade.

[0018] A support plate 9 is fixedly provided at the bottom of the operating table 1 ; a pull-out waste box 10 is provided on the top of the support plate 9 .

[0019] Furthermore, along the pulling direction, two groups of clamping strips 11 are provided at the bottom of the waste box 10, and a clamping groove 12 for the clamping strips 11 to slide is provided on the top surface of the support plate 9.

[0020] The utility model is beneficial in that:

[0021] The utility model discloses a device for preventing shale sample breakage. A first motor drives a bidirectional screw to rotate, causing two sets of moving blocks on the bidirectional screw to move in opposite directions. The moving blocks then drive a push rod and a clamping plate to clamp and fix the shale on the operating table, facilitating subsequent sampling of the shale. The arc-shaped clamping plate is used to form an encircling clamp on the shale, which not only increases the contact surface of the clamping but also enhances the stability of the clamping. At the same time, it can provide encircling protection for the shale, preventing the shale from moving, shaking, or rotating due to rotary sampling, which may lead to shale breakage.

[0022] The utility model provides a device for preventing shale sampling from being broken, which has a simple structure and is easy to use, can significantly improve the stability and accuracy of sampling, and has strong practicality and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of the device to prevent shale sampling from breaking.

[0024] Figure 2 Schematic diagram of the structure of the clamping assembly.

[0025] Figure 3 Schematic diagram of the sampling component.

[0026] The meanings of the symbols in the accompanying drawings are as follows:

[0027] 1. Operating table; 2. Fixed frame; 3. Support frame; 4. Sampling assembly; 41. Cylinder; 42. Moving frame; 43. Second motor; 44. Sampling barrel; 5. Clamping assembly; 51. First motor; 52. Bidirectional screw; 53. Moving block; 54. Push rod; 55. Clamping plate; 6. Sliding rod; 7. Bump; 8. Support seat; 9. Support plate; 10. Waste box; 11. Card strip; 12. Card slot. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] A device for preventing shale sampling from breaking comprises an operating table 1, a fixing frame 2, a sampling component 4, a clamping component 5 and a waste box 10.

[0030] The fixing frame 2 is horizontally suspended on the top of the operating table through the side panels.

[0031] The sampling assembly 4 is fixed by the fixing frame 2 and is suspended between the operating table and the fixing frame.

[0032] The sampling assembly 4 consists of a cylinder 41, a movable frame 42, a second motor 43, a sampling bucket 44, and a cutting blade. The cylinder 41 is fixedly mounted on top of the fixed frame 2. The telescopic end of the cylinder 41 extends longitudinally through the fixed frame 2 to the bottom, where it is fixedly connected to the movable frame 42. The second motor 43 is fixed within the movable frame 42. The output end of the second motor 43 extends through the bottom of the movable frame 42 and is fixedly connected to the sampling bucket 44. The cutting blade is mounted at the lower end of the sampling bucket 44.

[0033] The main body of the clamping assembly 4 is fixed to the back side (outer side) of the side plate, and the clamping plate driven by the main body is placed on the table top of the operating table 1.

[0034] The clamping assembly 4 consists of a pair of support frames 3, a bidirectional screw rod 52, a pair of moving blocks 53, a slide rod 6, a protrusion 7, a push rod 54, and a clamping plate 55. The pair of support frames 3 are respectively fixed vertically on the back side (outer side) of the side plate, and are parallel and symmetrical to each other. The bidirectional screw rod 52 and the slide rod 6 are arranged parallel to each other between the support frames, wherein the bidirectional screw rod 52 is axially connected to the support frame, and the slide rod 6 is fixedly connected. The moving block 53 is screwed to the bidirectional screw rod 52 and is respectively placed on both sides. The protrusion 7 is fixed on the top of the moving block 53 and is provided with a through hole for sleeve-connecting the slide rod 6. That is, the first motor 41 rotates the bidirectional screw rod, which can make the pair of moving blocks move closer to or farther away from each other, and the slide rod 6 provides a limit.

[0035] The side panels are provided with a slot that matches the direction of movement of the moving block 53. A push rod 54 extends through the slot, with one end fixed to the moving block 53 and the other end attached to a clamping plate 55. Preferably, the clamping plate 55 is curved, with its concave surfaces facing each other. The bottom surface of the clamping plate is attached to the workbench surface.

[0036] A horizontal support plate 9 is fixed to the bottom of the operating table 1. A waste box 10 is placed on the support plate 9 and can slide along the top surface of the support plate 9, thus enabling the waste box to be withdrawn and pulled out. Preferably, the contact surfaces of the waste box 10 and the support plate 9 are provided with matching retaining strips 11 and retaining slots 12. The retaining strips 11 are provided in two sets, parallel to the bottom surface of the waste box 10 along the direction of withdrawal, and the retaining slots 12 are parallel to the top surface of the support plate 9. The retaining strips placed in the retaining slots stabilize the waste box and allow it to be withdrawn and pulled out.

[0037] When using,

[0038] The shale to be sampled is placed on the table of the operating table 1, and the first motor 51 is started to drive the bidirectional screw 52 to rotate, so that the moving block 53 on the bidirectional screw 52 moves inward at the same time, thereby the moving block 53 drives the push rod 54 and the clamping plate 55 to move inward until the clamping plate 55 clamps and fixes the shale.

[0039] Subsequently, the second motor 43 and the cylinder 41 are started at the same time. The telescopic rod of the cylinder 41 pushes the movable frame 42 and the second motor 43 downward. The second motor 43 drives the sampling barrel 44 and the cutting blade to rotate to sample the shale, thereby completing stable and accurate sampling of the shale.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the scope of protection of the present invention.

Claims

1. A device for preventing shale sampling from breaking, characterized in that: It includes an operating table (1), a fixing frame (2) horizontally suspended on the top of the operating table through a side panel; The sampling assembly (4) fixed by the fixing frame (2) is suspended on the top of the operating table in the longitudinal direction; the clamping assembly (5) is fixed on the back of the side panel; The clamping assembly (5) comprises a pair of parallel support frames (3) fixedly connected to the side plates, a bidirectional screw rod (52) driven by a first motor (51) being axially connected between the support frames (3), and a pair of moving blocks (53) that move in opposite directions being screwed onto the bidirectional screw rod (52); Along the moving direction of the moving block (53), the side plate is provided with a matching slide groove, the inner side surface of the moving block is provided with a push rod passing through the slide groove, and the clamping plate is fixed to the end of the push rod.

2. The device according to claim 1, characterized in that The inner side surface of the moving block is attached to the outer side surface of the side plate.

3. The device according to claim 1, characterized in that A sliding rod parallel to the bidirectional screw rod (52) is provided between the support frames (3), and a protrusion that slides along the sliding rod is fixed on the top of the moving block.

4. The device according to claim 1, characterized in that The bottom surface of the clamping plate is attached to the table top of the operating table.

5. The device according to claim 1, characterized in that A support seat is provided on the bottom surface of the support frame (3), and the inner side surface of the support seat is fixedly connected to the operating table (1).

6. The device according to claim 1, characterized in that The clamping plate (55) is arc-shaped.

7. The device according to claim 1, characterized in that The sampling assembly (4) includes a cylinder (41) fixedly mounted on the top of a fixed frame (2); a movable frame (42) is mounted on the bottom of the fixed frame (2) at the telescopic end of the cylinder (41); a second motor (43) is fixed in the movable frame (42), and an output end of the second motor (43) is fixedly connected to a sampling barrel (44) through the bottom of the movable frame (42); and a cutting blade is mounted on the lower end of the sampling barrel (44).

8. The device according to claim 1, characterized in that A support plate (9) is fixedly provided at the bottom of the operating table (1); a drawable waste box (10) is provided at the top of the support plate (9).

9. The device according to claim 8, characterized in that Along the pulling direction, two groups of clamping strips (11) are provided at the bottom of the waste box (10), and a clamping groove (12) for the clamping strips (11) to slide is provided on the top surface of the support plate (9).

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