Ore rock core sampling device

Abstract

The utility model relates to the technical field of ore rock sampling equipment, in particular to an ore rock core sampling device, which comprises a main body frame, a sampling device and a control device, the drill bit is arranged above the working face, the drill bit is installed at the top of the main body frame through a coring machine, and the coring machine is electrically connected with the control unit so that the control unit can control work of the coring machine; the clamping mechanism comprises clamping jaws and a driving device, the multiple clamping jaws are arranged in the main body frame, the clamping ends of the multiple clamping jaws are distributed around the axis of the drill bit, each clamping jaw is a clamping station when abutting against the ore rock, and each clamping jaw is a loosening station when retracting; the connecting end of the clamping jaw is installed on the main body frame through the driving device, the control unit is electrically connected with the driving device and used for controlling the driving device to work and driving the clamping jaw to move between the clamping station and the loosening station, ore rock can be stably clamped from different directions, and ore rock displacement in the sampling process is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of mineral and rock sampling equipment, specifically providing a mineral and rock core sampling device. Background Technology

[0002] Existing laboratory coring machines operate in a fixed mode, requiring repositioning and re-clamping of the rock sample or adjustment of the equipment after each sampling, resulting in a cumbersome and time-consuming process. More importantly, traditional clamps struggle to effectively hold non-standard geometric rock samples, easily leading to the following technical problems: drill bit jamming due to sample displacement during drilling; structural fractures caused by the propagation of internal cracks in the core; localized breakage of the coal and rock mass due to uneven clamping force distribution; and mechanical failures caused by abnormal equipment vibration. The combined effect of these problems not only extends the sampling time by 40%-60%, but also significantly increases overall experimental costs due to sample wear and equipment maintenance.

[0003] Accordingly, there is a need in the field for a new mineral core sampling device to solve the above-mentioned technical problems. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that existing mineral and rock sampling equipment is difficult to sample minerals and rocks with non-standard geometric shapes.

[0005] This utility model provides a mineral and rock core sampling device, the sampling device comprising:

[0006] The main frame, within which a working surface for placing ore and rock is provided;

[0007] A drill bit is positioned above the working face and is mounted on the top of the main frame via a core sampling machine. The core sampling machine is electrically connected to a control unit so that the control unit can control the operation of the core sampling machine.

[0008] The clamping mechanism includes jaws and a drive device. Multiple jaws are arranged within the main frame, and the clamping ends of the multiple jaws are distributed around the axis of the drill bit. When each jaw abuts against the ore, it is a clamping position, and when each jaw retracts, it is a releasing position. The connecting ends of the jaws are mounted on the main frame through the drive device. The control unit is electrically connected to the drive device and is used to control the operation of the drive device to drive the jaws to move between the clamping position and the releasing position.

[0009] Based on the above configuration, the rock core sampling device provides a stable working support structure through its main frame, clearly defining the working surface for placing the rock and ensuring a reference platform for sampling operations. The drill bit is mounted on top of the main frame via a core extractor, which is electrically connected to the control unit. This allows operators to precisely control the core extractor, enabling operations such as starting, stopping, and adjusting the drill bit's speed, significantly improving the controllability and accuracy of sampling. The clamping mechanism's grippers and drive unit work in tandem. Multiple grippers are distributed around the drill bit's axis, providing stable clamping of the rock from different directions, preventing displacement during sampling and ensuring smooth operation. The control unit's control of the drive unit allows the grippers to easily switch between clamping and releasing positions, improving operational efficiency.

[0010] In the preferred technical solution of the above-mentioned rock core sampling device, the gripper is configured as an arc-shaped multi-piece structure with the concave side facing the drill bit.

[0011] Based on the above configuration, the gripper is designed as an arc-shaped multi-piece structure with the concave side facing the drill bit. This allows it to better conform to the irregular surface of the ore. Compared to a flat gripper, the arc design increases the contact area with the ore, making the gripping force distribution more uniform. This effectively avoids damage to the ore due to excessive local force, greatly improving the gripping stability of ore of different shapes. It ensures that the ore remains in a fixed state during the drilling process, thus improving the quality and success rate of core sampling.

[0012] In the preferred embodiment of the above-mentioned rock core sampling device, a mechanical spring is provided on the gripper to adjust the contact force between the gripper and the rock; a wear-resistant layer is provided on the side of the gripper that contacts the rock.

[0013] Based on the above design, the grippers are equipped with mechanical springs that automatically adjust the contact force with the ore based on its hardness and shape. When encountering softer ore, the springs cushion the impact, preventing excessive pressure that could damage the ore; against harder ore, the springs ensure sufficient clamping force. A wear-resistant layer is installed on the side of the grippers that contacts the ore, significantly enhancing their durability, reducing wear caused by frequent friction with the ore, extending their service life, and lowering equipment maintenance costs.

[0014] In the preferred technical solution of the above-mentioned mineral core sampling device, the width of the gripper is set to 25-35mm, and the length of the gripper is set to 75-85mm.

[0015] Based on the above settings, the gripper width is set to 25-35mm and the length to 75-85mm, which are optimized dimensions derived from extensive practical experience and mechanical analysis. These dimensions ensure that the gripper has sufficient strength to hold the ore, without being too large and affecting the handling flexibility of small ore samples, or too small and resulting in insufficient gripping force. This allows for efficient and stable gripping in various ore sampling scenarios.

[0016] In the preferred embodiment of the above-mentioned rock core sampling device, the driving device includes a hydraulic cylinder and a hydraulic system, and the hydraulic cylinder is connected to the control unit through the hydraulic system.

[0017] Based on the above configuration, the drive unit employs a hydraulic cylinder and a hydraulic system, which is connected to the control unit. The hydraulic cylinder provides powerful and stable power output. Compared to other drive methods, hydraulic drive offers faster response, greater output force, and a wider adjustment range. The control unit can precisely adjust the pressure and flow rate of the hydraulic cylinder through the hydraulic system, thereby accurately controlling the clamping force and movement speed of the grippers to adapt to the clamping requirements of ores and rocks of different hardness and sizes.

[0018] In the preferred embodiment of the above-mentioned rock core sampling device, the hydraulic cylinder and the gripper are connected by a pin.

[0019] Based on the above configuration, the hydraulic cylinder and the gripper are connected by a pin. This pin connection structure is simple, reliable, and easy to install and disassemble. During equipment maintenance, the gripper can be easily removed from the hydraulic cylinder for individual repair or replacement, reducing maintenance difficulty and time costs. Simultaneously, the pin connection allows the gripper to rotate flexibly under the drive of the hydraulic cylinder, accurately reaching the clamping and releasing positions.

[0020] In the preferred technical solution of the above-mentioned rock core sampling device, the diameter of the hydraulic cylinder is 15-25mm and the stroke of the hydraulic cylinder is 45-55mm.

[0021] Based on the above settings, the diameter of the hydraulic cylinder is set to 15-25mm, and the stroke is set to 45-55mm. This ensures the compactness and efficiency of the equipment while meeting the power and displacement requirements of the gripper. A suitable diameter provides sufficient hydraulic thrust to ensure the gripper firmly holds the ore; an appropriate stroke ensures the gripper can move flexibly within a reasonable range, achieving stable gripping and rapid release of the ore, thus improving the overall working efficiency of the equipment.

[0022] In the preferred technical solution of the above-mentioned rock core sampling device, the grippers and the driving device are evenly distributed in four sets around the rock, so that the grippers abut against the rock around the perimeter when the gripping position is engaged.

[0023] Based on the above configuration, the grippers and drive devices are evenly distributed in four sets around the ore. When the gripper is in the gripping position, the grippers can apply clamping force from all sides of the ore simultaneously. This symmetrical distribution design ensures that the clamping force on the ore is uniform. Regardless of whether the ore is regular in shape, it can be firmly fixed on the working surface, effectively preventing the ore from rotating or shifting during the sampling process, and improving the accuracy and success rate of core sampling.

[0024] In the preferred technical solution of the above-mentioned mineral core sampling device, the main frame includes an upper shell and a lower shell, and the upper shell and the lower shell are configured as detachable structures so that the main frame can be separated.

[0025] Based on the above configuration, the main frame includes an upper shell and a lower shell, and is designed to be detachable, facilitating the disassembly of the main frame. During equipment transportation, the upper and lower shells can be separated to reduce the equipment's size and facilitate handling; during equipment maintenance or internal cleaning, they can also be easily disassembled to facilitate the inspection, repair, and cleaning of components such as the working surfaces and clamping mechanisms inside the main frame, thus improving the maintainability of the equipment.

[0026] In the preferred embodiment of the above-mentioned rock core sampling device, the drill bit and the core sampling machine are configured as detachable structures.

[0027] Based on the above configuration, the drill bit and coring machine are designed to be detachable. When the drill bit becomes worn or damaged during sampling, it can be quickly removed from the coring machine for replacement without replacing the entire coring device, saving maintenance costs and time. At the same time, the detachable structure allows for flexible replacement of different drill bit specifications according to the hardness of different ores and sampling requirements, improving the equipment's adaptability to diverse ores sampling tasks. Attached Figure Description

[0028] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0029] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0030] Figure 2 A top view of the overall structure of this utility model is shown.

[0031] Figure label:

[0032] 1. Upper housing; 2. Lower housing; 3. Core extractor; 4. Drill bit; 5. Clamping jaws; 6. Hydraulic cylinder. Detailed Implementation

[0033] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0034] It should be noted that in the description of this utility model, the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the structure must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] This utility model provides a mineral and rock core sampling device, the sampling device comprising:

[0037] The main frame contains a working surface for placing ore and rock.

[0038] Drill bit 4 is positioned above the working face. Drill bit 4 is installed on the top of the main frame via core sifter 3. Core sifter 3 is electrically connected to control unit so that control unit can control the operation of core sifter 3.

[0039] The clamping mechanism includes grippers 5 and a drive device. Multiple grippers 5 are arranged within the main frame, with their gripping ends distributed around the axis of the drill bit 4. Each gripper 5 is in a gripping position when it abuts against the ore, and in a releasing position when it retracts. The connecting ends of the grippers 5 are mounted on the main frame via the drive device. The control unit is electrically connected to the drive device to control its operation, causing the grippers 5 to move between the gripping and releasing positions. It should be noted that this invention does not impose any limitations on the specific type of grippers 5. Those skilled in the art can set them according to their needs. For example, the grippers 5 can be hydraulic grippers 5, or they can be mechanical grippers 5, as long as the grippers 5 can adapt to the structure of the ore. In this preferred embodiment, a mechanical spring is provided on the grippers 5 to adjust the contact force between the grippers 5 and the ore; a wear-resistant layer is provided on the side of the grippers 5 that contacts the ore. The mechanical spring on the grippers 5 can automatically adjust the contact force with the ore according to its hardness and shape. When encountering softer ores, the spring buffer prevents excessive pressure from the grippers 5, which could damage the ores. Against harder ores, the springs ensure sufficient clamping force. A wear-resistant layer is installed on the side of the gripper 5 that contacts the ores, significantly enhancing its durability, reducing wear caused by frequent friction with the ores, extending its service life, and lowering equipment maintenance costs.

[0040] Furthermore, it should be noted that this utility model does not impose any limitations on the structure of the gripper 5. Those skilled in the art can set it according to their needs. For example, the gripper 5 can be a square gripper 5, or it can be a circular gripper 5, as long as the structure of the gripper 5 does not affect the fixation of the ore. In this preferred embodiment, the gripper 5 is configured as an arc-shaped multi-piece structure with the concave side facing the drill bit 4. The arc-shaped multi-piece structure with the concave side facing the drill bit 4 can better fit the irregular surface of the ore. Compared with the flat gripper 5, the arc design increases the contact area with the ore, making the clamping force distribution more uniform, effectively avoiding damage to the ore due to excessive local force, greatly improving the clamping stability of ore of different shapes, ensuring that the ore remains fixed during the drilling process of the drill bit 4, and improving the quality and success rate of core sampling. The width of the gripper 5 is set to 25-35mm, and the length of the gripper 5 is set to 75-85mm. The width of the gripper 5 is set at 25-35mm, and the length at 75-85mm. These are optimized dimensions derived from extensive practical experience and mechanical analysis. This size ensures that the gripper 5 has sufficient strength to hold the ore, without being too large and affecting the handling flexibility of small ore pieces, or too small and resulting in insufficient gripping force. It can achieve efficient and stable gripping in various ore sampling scenarios.

[0041] The rock core sampling device provides a stable working support structure through its main frame, clearly defining the working surface for placing the ore and ensuring a reference platform for sampling operations. The drill bit 4 is mounted on top of the main frame via a core extractor 3, which is electrically connected to the control unit. This allows operators to precisely control the core extractor 3, enabling operations such as starting, stopping, and adjusting the speed of the drill bit 4, significantly improving the controllability and accuracy of sampling. The gripping mechanism's jaws 5 and drive unit work in tandem. Multiple jaws 5 are distributed around the axis of the drill bit 4, providing stable gripping of the ore from different directions, preventing displacement during sampling and ensuring smooth operation. The control unit's control of the drive unit allows the jaws 5 to easily switch between gripping and releasing positions, improving operational efficiency.

[0042] Furthermore, it should be noted that this utility model does not impose any limitations on the structure of the drive device. Those skilled in the art can set it according to their needs. For example, the drive device can be a motor, or it can be a hydraulic cylinder 6 structure, as long as the drive device can drive the gripper 5 to move directly between the clamping and releasing positions. In this preferred embodiment, the drive device includes a hydraulic cylinder 6 and a hydraulic system, with the hydraulic cylinder 6 connected to the control unit via the hydraulic system. The drive device uses a hydraulic cylinder 6 and a hydraulic system, and is connected to the control unit via the hydraulic system. The hydraulic cylinder 6 can provide powerful and stable power output. Compared with other drive methods, hydraulic drive has a fast response speed, large output force, and wide adjustment range. The control unit can precisely adjust the pressure and flow of the hydraulic cylinder 6 through the hydraulic system, thereby accurately controlling the clamping force and moving speed of the gripper 5 to adapt to the clamping requirements of ores of different hardness and size.

[0043] Furthermore, the hydraulic cylinder 6 and the gripper 5 are connected by a pin. This pin connection structure is simple, reliable, and easy to install and disassemble. During equipment maintenance, the gripper 5 can be easily removed from the hydraulic cylinder 6 for individual repair or replacement, reducing maintenance difficulty and time costs. Simultaneously, the pin connection allows the gripper 5 to rotate flexibly under the drive of the hydraulic cylinder 6, accurately reaching the clamping and releasing positions. In this preferred embodiment, the diameter of the hydraulic cylinder 6 is 15-25mm, and the stroke is 45-55mm. Setting the diameter of the hydraulic cylinder 6 to 15-25mm and the stroke to 45-55mm ensures the compactness and efficiency of the equipment while meeting the power and displacement requirements of the gripper 5. A suitable diameter provides sufficient hydraulic thrust to ensure the gripper 5 firmly clamps the ore; an appropriate stroke ensures the gripper 5 can move flexibly within a reasonable range, achieving stable clamping and rapid release of the ore, thus improving the overall working efficiency of the equipment. Of course, this utility model does not impose any restrictions on the specific structure of the hydraulic cylinder 6. Those skilled in the art can set it according to their needs, as long as the operation of the hydraulic cylinder 6 is sufficient to drive the gripper 5 to clamp the ore.

[0044] Furthermore, four sets of grippers 5 and driving devices are evenly distributed around the ore to ensure that the grippers 5 abut against the ore's perimeter during clamping. This symmetrical distribution design ensures uniform clamping force on the ore, regardless of its shape, effectively preventing rotation or displacement during sampling and improving the accuracy and success rate of core sampling. It should be noted that this invention does not impose any limitation on the number of grippers 5 and driving devices. Those skilled in the art can set the number according to their needs. For example, the grippers 5 and driving devices can be arranged in three sets in a triangular configuration, or in five sets in a pentagonal configuration, as long as the grippers 5 can keep the ore in a fixed position.

[0045] Furthermore, the main frame includes an upper shell 1 and a lower shell 2, which are detachable to allow for the main frame to be disassembled. The main frame includes an upper shell 1 and a lower shell 2, and is designed to be detachable, facilitating disassembly. During equipment transportation, the upper and lower shells 2 can be disassembled to reduce the equipment's volume and facilitate handling. During equipment maintenance or internal cleaning, they can also be easily disassembled to facilitate inspection, repair, and cleaning of components such as working surfaces and clamping mechanisms inside the main frame, improving the maintainability of the equipment. It should be noted that this utility model does not impose any limitations on the specific structure of the main frame; those skilled in the art can design it according to their needs. For example, the main frame can be an integral structure, or it can be a split structure, as long as the main frame can effectively protect the entire equipment.

[0046] Furthermore, the drill bit 4 and the coring machine 3 are designed to be detachable. This detachable design allows the drill bit 4 to be quickly removed from the coring machine 3 for replacement when it becomes worn or damaged during sampling, eliminating the need to replace the entire coring device and saving maintenance costs and time. Simultaneously, the detachable design facilitates the flexible replacement of different specifications of drill bits 4 according to the hardness of different ores and sampling requirements, improving the equipment's adaptability to diverse ores sampling tasks.

[0047] The technical solution of this utility model has been described in conjunction with the optional embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A mineral core sampling device, characterized in that, The sampling device includes: The main frame, within which a working surface for placing ore and rock is provided; A drill bit is positioned above the working face and is mounted on top of the main frame via a core sampling machine. The core sampling machine is electrically connected to a control unit so that the control unit can control the operation of the core sampling machine. The clamping mechanism includes jaws and a drive device. Multiple jaws are arranged within the main frame, and the clamping ends of the multiple jaws are distributed around the axis of the drill bit. When each jaw abuts against the ore, it is a clamping position, and when each jaw retracts, it is a releasing position. The connecting ends of the jaws are mounted on the main frame through the drive device. The control unit is electrically connected to the drive device and is used to control the operation of the drive device to drive the jaws to move between the clamping position and the releasing position.

2. The rock core sampling device according to claim 1, characterized in that, The gripper is configured as an arc-shaped multi-piece structure with the concave side facing the drill bit.

3. The rock core sampling device according to claim 2, characterized in that, The gripper is equipped with a mechanical spring to adjust the contact force between the gripper and the ore; a wear-resistant layer is provided on the side of the gripper that contacts the ore.

4. The rock core sampling device according to claim 3, characterized in that, The width of the gripper is set to 25-35mm, and the length of the gripper is set to 75-85mm.

5. The rock core sampling device according to claim 1, characterized in that, The drive device includes a hydraulic cylinder and a hydraulic system, and the hydraulic cylinder is connected to the control unit through the hydraulic system.

6. The rock core sampling device according to claim 5, characterized in that, The hydraulic cylinder and the gripper are connected by a pin.

7. The rock core sampling device according to claim 6, characterized in that, The diameter of the hydraulic cylinder is 15-25mm, and the stroke of the hydraulic cylinder is 45-55mm.

8. The rock core sampling device according to claim 1, characterized in that, The grippers and the driving device are evenly distributed in four sets around the ore, so that the grippers abut against the ore around the perimeter when the gripping position is engaged.

9. The rock core sampling device according to claim 1, characterized in that, The main frame includes an upper shell and a lower shell, and the upper shell and the lower shell are configured to be detachable so that the main frame can be separated.

10. The rock core sampling device according to claim 1, characterized in that, The drill bit and the coring machine are configured to be detachable.

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