A rock mass coring device

Abstract

The utility model relates to rock mass sampling technology field discloses a kind of rock mass core sampling device, including support, and the rotating shaft of transverse arrangement is connected on support, rotating shaft is rotatably installed with stand column by annular bearing, and stand column is rotatably installed with screw rod shaft in it, and longitudinal extension installation slot is set up on stand column, and sliding block is installed in installation slot, and sliding block is engaged on screw rod shaft, and driving motor is installed on sliding block, and driving motor bottom is installed with coring drill bit, and two sections outer threads are provided on rotating shaft, and two sections outer threads are respectively located at the two sides of rotating shaft center position, and locking nut is engaged on two sections outer threads. The utility model can adjust stand column angle by the cooperation of rotating shaft and locking nut, without building platform can be completed vertical sampling on slope, avoid topography damage at the same time, universal wheel facilitates device fast movement and positioning, detachable cross bar and connecting rod can improve the use flexibility of device, reduce manpower and material resources cost, improve sampling efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of rock mass sampling technology, specifically, it relates to a rock mass core sampling device. Background Technology

[0002] Rock mass sampling is a key means of obtaining data on the physical and mechanical properties of rock masses in fields such as geological exploration and engineering construction. By collecting rock core samples, researchers and engineers can analyze information such as the structural characteristics, strength parameters, and mineral composition of the rock mass, providing important basis for geological hazard assessment, underground engineering design, and mineral resource development. Accurate rock mass sampling data is directly related to the safety and stability of the project and the feasibility of resource development, and is an important basis for decision-making in various geotechnical engineering projects.

[0003] During use, it was found that when conducting vertical rock sampling on sloping terrain, a temporary working platform needs to be built on the slope surface and the sampling device needs to be fixed. This process not only requires calibrating the platform level, but also damages the original landform. Moreover, the construction process is complicated, involving material transportation, structural construction, etc., resulting in high manpower, material and time costs and low work efficiency.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To address the problem of high labor, material, and time costs and low operational efficiency when conducting vertical rock sampling on sloping terrain, which requires the temporary construction of a working platform and fixing of the sampling device on the slope surface, necessitates platform leveling, damages the original topography, and involves complex construction procedures involving material transportation and structural assembly. The basic concept of the technical solution adopted in this utility model is as follows: A rock core sampling device includes a support frame, a horizontally arranged rotating shaft connected to the support frame, a column rotatably mounted on the rotating shaft via an annular bearing, a lead screw shaft rotatably mounted in the column, a longitudinally extending mounting groove on the column, a sliding block installed in the mounting groove, the sliding block engaging with the lead screw shaft, a drive motor mounted on the sliding block, and a core drill bit mounted at the bottom of the drive motor. The rotating shaft is provided with two external threads, which are located on both sides of the center position of the rotating shaft, and a lock nut is engaged on each of the two external threads.

[0006] In a preferred embodiment of this utility model, the end of the lead screw shaft extends to the outer side of the top of the column, and the end of the lead screw shaft is connected to a turntable for rotating the lead screw shaft, the turntable being coaxially arranged with the lead screw shaft.

[0007] In a preferred embodiment of this utility model, brakeable casters are installed at the four corners of the bottom of the bracket.

[0008] In a preferred embodiment of this utility model, the bracket is provided with two crossbars and two connecting rods, and fasteners are installed on the two crossbars and two connecting rods. The two crossbars and two connecting rods are connected to the bracket by fasteners.

[0009] In a preferred embodiment of this utility model, the two locking nuts are respectively disposed on both sides of the column, and both locking nuts are hexagonal nuts.

[0010] In a preferred embodiment of this utility model, the sliding block is slidably installed in the mounting groove, and the shape of the sliding block is adapted to the cross-section of the mounting groove.

[0011] Compared with the prior art, the present invention has the following advantages: This invention allows for adjustment of the column angle through the cooperation of the rotating shaft and the locking nut, enabling vertical sampling on slopes without the need for a platform, while avoiding damage to the terrain. The casters facilitate quick movement and positioning of the device, and the detachable crossbars and connecting rods enhance the device's flexibility, reduce manpower and material costs, and improve sampling efficiency.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram: Figure 1 A three-dimensional diagram of a rock core sampling device; Figure 2 This is a schematic diagram of a rock core sampling device used on a slope. Figure 3 A schematic diagram of the connection of a support frame for a rock core sampling device; Figure 4 A rock core sampling device Figure 3 Enlarged view of point A in the middle.

[0014] In the diagram: 1. Bracket; 2. Rotating shaft; 3. External thread; 4. Locking nut; 5. Column; 6. Mounting groove; 7. Lead screw shaft; 8. Sliding block; 9. Drive motor; 10. Core drill bit; 11. Turntable; 12. Connecting rod; 13. Crossbar; 14. Fastener; 15. Caster wheel. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0016] like Figures 1 to 4 As shown, a rock core sampling device includes a support 1, a horizontally arranged rotating shaft 2 connected to the support 1, a column 5 rotatably mounted on the rotating shaft 2 via a ring bearing, a lead screw shaft 7 rotatably mounted in the column 5, a longitudinally extending mounting groove 6 opened on the column 5, a sliding block 8 installed in the mounting groove 6, the sliding block 8 meshing with the lead screw shaft 7, a drive motor 9 installed on the sliding block 8, and a core drill bit 10 installed at the bottom of the drive motor 9; The rotating shaft 2 is provided with two external threads 3, which are located on both sides of the center position of the rotating shaft 2, and locking nuts 4 are engaged on both external threads 3. In this setup, the support frame 1 serves as the basic load-bearing structure of the entire device, providing an installation and support platform for other components. The horizontally arranged rotating shaft 2 connects the support frame 1 and the column 5, and is a key component for adjusting the angle of the column 5. A ring bearing is installed between the rotating shaft 2 and the column 5 to reduce the friction when the column 5 rotates, ensuring its flexible rotation. The column 5 can rotate around the rotating shaft 2 to adapt to different sampling angle requirements. The lead screw shaft 7 rotates on its own, using threaded transmission to drive the sliding block 8 to move up and down. The longitudinally extending mounting groove 6 guides and limits the sliding block 8, ensuring that it slides in a fixed direction. The sliding block 8 meshes with the lead screw shaft 7, converting the rotational motion of the lead screw shaft 7 into its own linear motion, which in turn drives the drive motor 9 and the core drill bit 10 to move up and down. The drive motor 9 provides rotational power to the core drill bit 10, driving it to drill into the rock mass. The core drill bit 10 acts directly on the rock mass to complete the core sample extraction. The two external threads 3 on the rotating shaft 2 cooperate with the locking nut 4 to firmly fix the column 5 after the angle of the column 5 is adjusted to the correct position, preventing its rotation.

[0017] like Figures 1 to 4 As shown, in a specific embodiment, the end of the lead screw 7 extends to the outer side of the top of the column 5, and a turntable 11 for rotating the lead screw 7 is connected to the end of the lead screw 7. The turntable 11 is coaxially arranged with the lead screw 7. In this configuration, the end of the lead screw 7 extends to the outer side of the top of the column 5 and is connected to the turntable 11. The turntable 11 serves as a manually operated component, allowing the operator to rotate it to drive the lead screw 7 to rotate, thereby controlling the up-and-down movement of the sliding block 8, the drive motor 9, and the core drill bit 10.

[0018] like Figures 1 to 4 As shown, furthermore, universal wheels 15 with braking function are installed at the four corners of the bottom of the bracket 1. In this configuration, the universal wheels 15 at the four corners of the bottom of the bracket 1 facilitate the flexible movement of the device between different sampling locations, and their braking function can securely fix the device after reaching the sampling location.

[0019] like Figures 1 to 4As shown, the support 1 is further provided with two crossbars 13 and two connecting rods 12. Fasteners 14 are installed on the two crossbars 13 and the two connecting rods 12, and the two crossbars 13 and the two connecting rods 12 are connected to the support 1 via the fasteners 14. In this configuration, the two crossbars 13 and the two connecting rods 12, together with the support 1, constitute the frame structure of the device, enhancing overall stability and providing gripping points for operators, facilitating operation. The fasteners 14 are used to achieve a detachable connection between the crossbars 13, the connecting rods 12, and the support 1, allowing the positions of the crossbars 13 and the connecting rods 12 to be adjusted according to actual needs.

[0020] like Figures 1 to 4 As shown, two locking nuts 4 are respectively installed on both sides of the column 5, and both locking nuts 4 are hexagonal nuts. In this configuration, the two hexagonal nuts 4 located on both sides of the column 5 are easy to operate with tools such as wrenches. By symmetrically setting them, a tightening force is applied to the column 5 from both sides, ensuring the stability of the column 5 angle during sampling.

[0021] like Figures 1 to 4 As shown, the sliding block 8 is further slidably installed in the mounting groove 6, and the shape of the sliding block 8 is adapted to the cross-section of the mounting groove 6. In this configuration, the sliding block 8 is adapted to the cross-section of the mounting groove 6, so that the sliding block 8 can slide smoothly in the mounting groove 6. The mounting groove 6 plays a precise guiding and limiting role for the sliding block 8, ensuring that the sliding block 8 drives the drive motor 9 and the core drill bit 10 to move up and down stably, thus ensuring the accuracy and stability of the sampling work.

[0022] The implementation principle of the rock core sampling device in this embodiment is as follows: When using this rock core sampling device, the device is first moved to the sampling position on the slope by means of the universal wheels 15 with braking function installed at the four corners of the bottom of the support 1. After reaching the designated position, the braking function of the universal wheels 15 is activated to firmly fix it on the slope surface and prevent the device from shifting during the sampling process. Then, the column 5 is rotated around the rotating shaft 2 by using the ring bearing connection structure between the column 5 and the rotating shaft 2. The angle of the column 5 is adjusted according to the slope to make the column 5 vertical. The verticality of the column 5 can be detected to ensure that it is in the vertical direction. After the angle of the column 5 is adjusted to the right position, the locking nuts 4 on both sides of the column 5 on the rotating shaft 2 are tightened. The two external threads 3 and the locking nuts 4 are used to lock the column 5 firmly in the current position, forming a stable sampling support structure. During sampling, the operator stands beside the device, holding the turntable 11 coaxially mounted at the end of the lead screw shaft 7. By rotating the turntable 11 clockwise or counterclockwise, the lead screw shaft 7 rotates synchronously within the column 5. Since the sliding block 8 engages with the lead screw shaft 7 via an internal thread, and its shape matches the cross-section of the longitudinally extending mounting groove 6 on the column 5, the sliding block 8, driven by the threaded transmission, slides smoothly up and down along the length of the mounting groove 6 as the lead screw shaft 7 rotates. The drive motor 9 and the core drill bit 10, fixedly mounted below the sliding block 8, move accordingly. As the drive motor 9 starts, the core drill bit 10 rotates at high speed and cuts into the rock mass. At the same time, it is fed downward under the action of the sliding block 8, thus completing the vertical core sampling work. In addition, the crossbar 13 and connecting rod 12 on the support 1 can be detachably connected by fastener 14. They can be flexibly assembled and disassembled according to the actual sampling needs. While providing auxiliary support and making it easy for operators to hold, it does not affect the overall movement and angle adjustment of the device, further improving the adaptability and convenience of the device in complex sloping terrain.

Claims

1. A rock core sampling device, comprising a support frame, characterized in that, The bracket is connected to a horizontally arranged rotating shaft. A column is rotatably mounted on the rotating shaft via a ring bearing. A lead screw shaft is rotatably mounted in the column. A longitudinally extending mounting groove is opened on the column. A sliding block is installed in the mounting groove. The sliding block meshes with the lead screw shaft. A drive motor is mounted on the sliding block. A core drill bit is installed at the bottom of the drive motor. The rotating shaft is provided with two external threads, which are located on both sides of the center position of the rotating shaft, and locking nuts are engaged on both external threads.

2. The rock core sampling device according to claim 1, characterized in that, The end of the lead screw extends to the outer side of the top of the column, and a turntable for rotating the lead screw is connected to the end of the lead screw. The turntable is coaxial with the lead screw.

3. The rock core sampling device according to claim 1, characterized in that, The bracket is equipped with brakeable casters at each of the four corners at its bottom.

4. A rock core sampling device according to claim 1, characterized in that, The bracket is provided with two crossbars and two connecting rods, and fasteners are installed on the two crossbars and two connecting rods. The two crossbars and two connecting rods are connected to the bracket by fasteners.

5. A rock core sampling device according to claim 1, characterized in that, The two locking nuts are respectively located on both sides of the column, and both locking nuts are hexagonal nuts.

6. A rock core sampling device according to claim 1, characterized in that, The sliding block is slidably installed in the mounting groove, and the shape of the sliding block is adapted to the cross-section of the mounting groove.

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