Rock core sampling and segmenting device

Abstract

The utility model belongs to the technical field of rock core sampling devices, and particularly relates to a rock core sampling sectioning device which comprises a driving vehicle, a fixing ring is fixedly connected to the middle end of the left side of the driving vehicle, evenly-distributed mounting feet are fixedly connected to the inner side of the fixing ring, and a first limiting frame is rotationally connected to the left sides of the mounting feet. Left and right opposite connecting rods are rotationally connected to the bottom end of the first limiting frame, a second limiting frame is rotationally connected to the bottom ends of the connecting rods, and a connecting plate is rotationally connected to the bottom end of the second limiting frame; according to the rock core sampling sectioning device provided by the utility model, the drill pipe is damped, so that the damage to a rock core, especially brittle rock, can be effectively reduced, and the integrity of a sample is ensured; meanwhile, damping is beneficial to improvement of segmentation precision, interference of vibration of a drill pipe on a rock core is reduced, and more accurate sampling is ensured; and the operation stability can be improved, clamping stagnation and fault risks are reduced, equipment abrasion is reduced, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of core sampling devices, in particular to a core sampling segmentation device. Background Art

[0002] Core sampling and segmenting devices are widely used in geological exploration, mineral resource development, and oil and gas exploration. They are primarily used to extract and segment core samples from drilled wells or sampling holes to ensure representativeness and accuracy. These devices utilize a clamping, cutting, segmenting, and collection system, combined with high-precision control, to automatically segment cores. Depending on the operating environment, these devices can be categorized as manual, automated, hydraulically driven, or portable. In the future, core segmenting devices will develop towards intelligent and multifunctional integration, improving efficiency and data accuracy to meet more complex exploration needs.

[0003] After searching, the existing patent (publication number: CN221594336U) discloses a core sampling segmentation device, including a base and a sampling mechanism; the sampling mechanism includes a limit shell; a shell provided beside the limit shell, a cavity connected to the limit shell is formed between the shell and the limit shell; a first gear rotating inside the shell; a limit ring is provided in the middle position of the limit shell; a cleaning brush is provided on the inner side of the limit ring; the device of the utility model has an automatic cleaning function, which can drive the cleaning brush to rub and clean the outer wall of the sampling tube through the limit ring during the rising process of the sampling tube; thereby effectively removing the adhered soil, keeping the sampling tube clean, ensuring the accuracy of the next sampling, and avoiding the problem of soil residue affecting the sampling data; secondly, the device adopts a hydraulic rod and a positioning plate to cooperate, which can adapt to various terrains and geological conditions, ensuring that efficient and accurate sampling operations can be carried out under different conditions.

[0004] However, in actual use, this solution fails to provide vibration dampening for the drill pipe, potentially causing problems with the core sampling and segmenting system. Vibration can increase core damage, especially in brittle rock, leading to breakage or incomplete samples, compromising sampling quality and subsequent analysis. Lack of vibration dampening can also transmit drill pipe vibration to the system, reducing operational stability and increasing the risk of failure and seizure. Furthermore, continuous vibration can exacerbate wear on equipment components, shortening equipment life and increasing maintenance costs.

[0005] To this end, the utility model provides a core sampling segmentation device. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the problem that the drill pipe cannot be damped, the utility model proposes a core sampling segmentation device.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a core sampling segmentation device described in the present invention includes a driving vehicle, a fixed ring is fixedly connected to the middle end of the left side of the driving vehicle, and evenly distributed mounting feet are fixedly connected to the inner side of the fixed ring. The left side of the mounting foot is rotatably connected to a first limit frame, the bottom end of the first limit frame is rotatably connected to left and right opposite connecting rods, the bottom end of the connecting rod is rotatably connected to a second limit frame, the bottom end of the second limit frame is rotatably connected to a connecting plate, the inner side of the connecting plate is fixedly connected to the limiting ring, and a damping assembly is provided on the outer side of the connecting rod.

[0008] Furthermore, the damping assembly includes a damping rod, the middle end of the outer connecting rod is rotatably connected to the damping rod, the left outer end of the damping rod is slidably connected to the damping cylinder, the damping cylinder is rotatably connected to the inner connecting rod, the outer side of the damping cylinder is fixedly connected to a spring, and the top end of the spring is fixedly connected to the damping rod.

[0009] Furthermore, a uniformly distributed limiting groove is opened at the middle end of the limiting ring, a transmission rod is rotatably connected to the inner side of the limiting groove, a uniformly distributed bottom plate is fixedly connected to the outer bottom end of the limiting ring, a second hydraulic rod is rotatably connected to the top end of the bottom plate, the second hydraulic rod is rotatably connected to the transmission rod, an extrusion plate is fixedly connected to the inner bottom end of the transmission rod, and a limiting roller is rotatably connected to the inner side of the bottom end of the extrusion plate.

[0010] Furthermore, a support rod is fixedly connected to the top left side of the driving vehicle, a first hydraulic rod is fixedly connected to the inner side of the top end of the support rod, and a motor is fixedly connected to the bottom end of the first hydraulic rod.

[0011] Furthermore, a probe tube is snap-connected to the bottom end of the motor, and a drill bit is threadedly connected to the bottom end of the probe tube.

[0012] Furthermore, a baffle is fixedly connected to the bottom side of the middle end of the driving vehicle.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The core sampling segmentation device described in the present invention converts the impact force generated by vibration into heat and dissipates it into the air through the opposite sliding of the damping rod and the damping cylinder. At the same time, the impact force is converted again through the deformation of the spring to reduce the shock of the drill pipe, which can effectively reduce core damage, especially brittle rock, and ensure the integrity of the sample. At the same time, shock absorption helps to improve segmentation accuracy, reduce the interference of drill pipe vibration on the core, and ensure more accurate sampling. It can also improve operational stability, reduce the risk of jamming and failure, and reduce equipment wear, extend service life, and reduce maintenance costs.

[0015] 2. The core sampling segmentation device described in the present invention drives the outer end of the transmission rod to move downward through the second hydraulic rod, thereby driving the bottom end of the extrusion plate to move inward, driving the limiting roller to fit the probe tube, thereby connecting the limiting ring and the probe tube, so that the equipment can be used for probe tubes of different diameters, thereby improving the flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the local three-dimensional structure of the utility model Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the local three-dimensional structure of the utility model Figure 2 and enlarged images;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the limiting ring in the utility model;

[0021] Figure 5 This is a schematic diagram of the local three-dimensional structure of the utility model Figure 3 ;

[0022] In the figure: 1. Driving vehicle; 11. Support rod; 12. First hydraulic rod; 13. Motor; 14. Probe; 15. Drill bit; 16. Baffle; 2. Fixing ring; 21. Mounting foot; 22. First limit frame; 23. Connecting rod; 24. Damping rod; 25. Damping cylinder; 26. Spring; 27. Second limit frame; 28. Connecting plate; 3. Limiting ring; 31. Limiting groove; 32. Bottom plate; 33. Second hydraulic rod; 34. Transmission rod; 35. Extrusion plate; 36. Limiting roller. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] Example 1:

[0025] like Figures 1 to 5As shown, a core sampling segmentation device described in the present invention includes a driving vehicle 1, a fixing ring 2 is fixedly connected to the middle end of the left side of the driving vehicle 1, the fixing ring 2 is fixed by the driving vehicle 1, the inner side of the fixing ring 2 is fixedly connected with evenly distributed mounting feet 21, the mounting feet 21 are fixed by the fixing ring 2, the left side of the mounting feet 21 is rotatably connected to the first limiting frame 22, the first limiting frame 22 is limited by the mounting feet 21, the bottom end of the first limiting frame 22 is rotatably connected to the left and right opposite connecting rods 23, and the first limiting frame is fixed by the first limiting frame. 22 limits the connecting rod 23, and the bottom end of the connecting rod 23 is rotatably connected to the second limiting frame 27, and the bottom end of the connecting rod 23 is limited by the second limiting frame 27. The bottom end of the second limiting frame 27 is rotatably connected to the connecting plate 28, and the outer end of the connecting plate 28 is limited by the second limiting frame 27. The inner side of the connecting plate 28 is fixedly connected to the limiting ring 3, and the connecting plate 28 is fixed by the limiting ring 3. At the same time, the limiting ring 3 and the second limiting frame 27 are connected by the connecting plate 28. A damping component is provided on the outside of the connecting rod 23.

[0026] The damping assembly includes a damping rod 24, and the middle end of the outer connecting rod 23 is rotatably connected to the damping rod 24, and the top of the damping rod 24 is limited by the connecting rod 23. The left outer end of the damping rod 24 is slidably connected to the damping cylinder 25. Through the large friction between the damping rod 24 and the damping cylinder 25, the impact force generated by the vibration is converted into heat and dissipated into the air. The damping cylinder 25 is rotatably connected to the inner connecting rod 23, and the damping cylinder 25 is limited by the inner connecting rod 23. A spring 26 is fixedly connected to the outside of the damping cylinder 25, and the top of the spring 26 is fixedly connected to the damping rod 24. Through the spring 26, the damping rod 24 and the damping cylinder 25 are used as stress points to push the damping rod 24 and the damping cylinder 25 to both sides at the same time.

[0027] The middle end of the limiting ring 3 is provided with evenly distributed limiting grooves 31, and the inner side of the limiting groove 31 is rotatably connected to the transmission rod 34, and the transmission rod 34 is limited by the limiting groove 31, so that the transmission rod 34 rotates inside the limiting groove 31, and the outer bottom end of the limiting ring 3 is fixedly connected to an evenly distributed bottom plate 32, which is supported and fixed by the limiting ring 3, and the top of the bottom plate 32 is rotatably connected to the second hydraulic rod 33, and the bottom end of the second hydraulic rod 33 is limited by the bottom plate 32. The second hydraulic rod 33 is rotatably connected to the transmission rod 34, and the outer end of the transmission rod 34 is limited by the second hydraulic rod 33. The inner bottom end of the transmission rod 34 is fixedly connected with an extrusion plate 35, and the extrusion plate 35 is fixed by the transmission rod 34. The bottom end of the extrusion plate 35 is rotatably connected to the limiting roller 36, and the limiting roller 36 is limited by the extrusion plate 35.

[0028] A support rod 11 is fixedly connected to the top left side of the driving vehicle 1, and the support rod 11 is supported and fixed by the driving vehicle 1. A first hydraulic rod 12 is fixedly connected to the inner side of the top end of the support rod 11, and the first hydraulic rod 12 is fixedly connected to the bottom end of the first hydraulic rod 12. The motor 13 is driven by the first hydraulic rod 12 to lift and lower.

[0029] The bottom end of the motor 13 is snap-connected with a probe tube 14 , and the top end of the probe tube 14 is limited by the motor 13 . The bottom end of the probe tube 14 is threadedly connected with a drill bit 15 , and the drill bit 15 is fixed by the probe tube 14 .

[0030] A baffle 16 is fixedly connected to the bottom side of the middle end of the driving vehicle 1 , and the baffle 16 is fixed by the driving vehicle 1 .

[0031] Working principle: When the core sampling segmentation device is in operation, the drill bit 15 is first fixed to the probe tube 14, and then the top of the probe tube 14 is fixed to the motor 13. Then the motor 13, the probe tube 14 and the drill bit 15 are driven downward by the first hydraulic rod 12. At the same time, the motor 13 drives the probe tube 14 and the drill bit 15 to rotate to perform drilling. The vibration generated during the process is transmitted to the limit ring 3 through the limit roller 36 and the extrusion plate 35. Then, the impact force is transmitted to the limit ring 3 through the connection plate 28 and the second limit frame 27. The impact force is transferred to the connecting rods 23 on both sides, thereby driving the damping rod 24 and the damping cylinder 25 to move in opposite directions. The friction between the damping rod 24 and the damping cylinder 25 converts the impact force into heat and dissipates it into the air. At the same time, the spring 26 converts the impact force again through its own deformation, thereby realizing the shock absorption function. The second hydraulic rod 33 drives the outer end of the transmission rod 34 to move downward, driving the extrusion plate 35 and the bottom end of the limiting roller 36 to move inward, limiting the outer wall of the probe 14 and increasing the stability of the equipment operation.

[0032] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0034] 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 present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A core sampling segmentation device, characterized in that: The invention comprises a driving vehicle (1), wherein a fixing ring (2) is fixedly connected to the middle end of the left side of the driving vehicle (1), and evenly distributed mounting feet (21) are fixedly connected to the inner side of the fixing ring (2), and the left side of the mounting feet (21) is rotatably connected to a first limiting frame (22), and the bottom end of the first limiting frame (22) is rotatably connected to left and right opposite connecting rods (23), and the bottom end of the connecting rod (23) is rotatably connected to a second limiting frame (27), and the bottom end of the second limiting frame (27) is rotatably connected to a connecting plate (28), and the inner side of the connecting plate (28) is fixedly connected to the limiting ring (3), and the outer side of the connecting rod (23) is provided with a damping component.

2. A core sampling segmentation device according to claim 1, characterized in that: The damping assembly includes a damping rod (24), the middle end of the outer connecting rod (23) is rotatably connected to the damping rod (24), the left outer end of the damping rod (24) is slidably connected to the damping cylinder (25), the damping cylinder (25) is rotatably connected to the inner connecting rod (23), the outer side of the damping cylinder (25) is fixedly connected to a spring (26), and the top end of the spring (26) is fixedly connected to the damping rod (24).

3. A core sampling segmentation device according to claim 2, characterized in that: The middle end of the limiting ring (3) is provided with uniformly distributed limiting grooves (31), the inner side of the limiting groove (31) is rotatably connected to a transmission rod (34), the outer bottom end of the limiting ring (3) is fixedly connected to a uniformly distributed bottom plate (32), the top end of the bottom plate (32) is rotatably connected to a second hydraulic rod (33), the second hydraulic rod (33) is rotatably connected to the transmission rod (34), the inner bottom end of the transmission rod (34) is fixedly connected to an extrusion plate (35), and the inner side of the bottom end of the extrusion plate (35) is rotatably connected to a limiting roller (36).

4. A core sampling segmentation device according to claim 3, characterized in that: The left top end of the driving vehicle (1) is fixedly connected to a support rod (11), the inner side of the top end of the support rod (11) is fixedly connected to a first hydraulic rod (12), and the bottom end of the first hydraulic rod (12) is fixedly connected to a motor (13).

5. A core sampling segmentation device according to claim 4, characterized in that: The bottom end of the motor (13) is snap-connected with a probe tube (14), and the bottom end of the probe tube (14) is threadedly connected with a drill bit (15).

6. A core sampling segmentation device according to claim 5, characterized in that: A baffle (16) is fixedly connected to the bottom side of the middle end of the driving vehicle (1).

Images