Mine soil sampling device and sampling method

Abstract

The invention relates to the technical field of sampling devices, in particular to a mine soil sampling device and a sampling method.The mine soil sampling device comprises a vertically-arranged traveling crane frame body, a bottom frame slidably mounted on the traveling crane frame body, a driving mechanism, n sections of driving rod sets sequentially connected with the output end of the driving mechanism in series, and a sampling probe mechanism; a connecting piece set is arranged between every two adjacent driving rod sets and comprises a connecting outer shell, a connecting inner shaft and a connecting bearing piece installed between the connecting outer shell and the connecting inner shaft. The two ends of the connecting shell are each provided with an outer side installation disc used for being installed on the two adjacent driving rod sets, and the two ends of the connecting inner shaft are each provided with an inner side installation disc used for being installed on the two adjacent driving rod sets. Through the arrangement of the connecting piece group, the deformation of the n sections of driving rod groups can be absorbed or eliminated through fine adjustment of a connecting state, so that the sampling position deviation is avoided, the sampling stability and precision are improved, the driving rod groups are convenient to transport, store and maintain, and flexible sampling of different types of mine soil is realized.

Description

Technical Field

[0001] This invention relates to the field of sampling device technology, specifically to a mineral soil sampling device and sampling method. Background Technology

[0002] With the increasing demands for accuracy in mineral soil testing during mining, washing, and trading, mechanized and automated sampling devices have become standard equipment in the industry. When sampling mineral soil at preset points inside loading vehicles, the sampling device typically needs to have deep vertical drilling capabilities. Existing sampling devices mostly adopt an integrated drive rod assembly structure, which is driven by a drive mechanism to rotate and descend for sampling.

[0003] However, in the existing technology, the integrated drive rod assembly structure cannot adaptively adjust the length of the drive rod assembly. Due to the uncertainty of the loading vehicle's parking position, vehicle size, type of sampled soil, and the height and shape of the soil accumulation, when sampling soil of different depths and types, it is usually necessary to replace the drive rod assembly structure with one of different lengths. This not only increases the frequency and time cost of manual intervention, but also requires tedious recalibration and precise positioning of the sampling device after each replacement. The operation steps are complicated and affect the overall sampling efficiency.

[0004] Meanwhile, the integrated drive rod assembly structure cannot be flexibly adapted to different vehicle models and different heights of soil and minerals. It has poor adaptability to diverse working conditions and cannot be quickly and accurately adjusted according to the actual sampling depth and on-site requirements, which affects the continuity and wide applicability of sampling operations. Summary of the Invention

[0005] Given that existing technologies cannot adaptively adjust the length of the drive rod assembly according to the actual sampling depth and on-site requirements, this invention provides a mineral soil sampling device and method. By setting up a connecting component group, the number of segments of the n-segment drive rod assembly can be adaptively installed and removed according to the parking position of the loading vehicle, the vehicle size, the type of mineral soil being sampled, and the height and shape of the mineral soil accumulation. This not only facilitates the transportation, storage, maintenance, and installation of the drive rod assembly, but also enables flexible sampling of different mineral soil layers, expanding the practicality of the device and further improving the stability of the coordinated transmission of the n-segment drive rod assembly.

[0006] The present invention provides a soil sampling device, comprising a vertically arranged trolley frame, a base frame slidably mounted on the trolley frame, a drive mechanism mounted on the base frame, n drive rod groups connected in series with the output end of the drive mechanism, and a sampling probe mechanism mounted at the bottom of the nth drive rod group.

[0007] A connecting component assembly for tight installation is provided between two adjacent drive rod assemblies. The connecting component assembly includes: a connecting housing, a connecting inner shaft installed in the connecting housing, and a connecting bearing component installed between the connecting housing and the connecting inner shaft.

[0008] Both ends of the connecting housing are provided with outer mounting plates for mounting to two adjacent drive rod assemblies, and both ends of the connecting inner shaft are provided with inner mounting plates for mounting to two adjacent drive rod assemblies.

[0009] Furthermore, the sampling probe mechanism includes: a sampling housing installed at the bottom of the drive rod assembly in section n, a rotating central shaft disposed within the sampling housing, a spiral sampling component installed on the outer surface of the rotating central shaft, an installation cavity disposed within the rotating central shaft, a sensing sensor installed within the rotating cavity; and a protective head installed at the bottom end of the rotating central shaft.

[0010] The detection end of the sensor is aligned with the bottom surface of the loading vehicle and a sensing threshold is set on the bottom surface of the loading vehicle. When the protective head moves to the sensing threshold, the sampling probe mechanism stops probing downwards.

[0011] Furthermore, a central shaft connector is mounted on the top of the rotating central shaft, and a bearing assembly for relative rotation is provided between the central shaft connector and the sampling housing.

[0012] Furthermore, the top end of the central shaft connector is provided with a mounting flange for mounting with the drive rod assembly described in section n, and the bottom end of the central shaft connector is mounted with the top end of the rotating central shaft.

[0013] Furthermore, the central shaft connector is provided with a hollow channel for the transmission cable assembly of the sensing sensor to pass through. The transmission cable assembly of the sensing sensor passes through the hollow channel in sequence, and n sections of the drive rod assembly are installed with the control end of the sensing sensor through a rotating slip ring.

[0014] Furthermore, the drive rod assembly includes: an outer shaft, an inner shaft installed inside the outer shaft, an outer shaft mounting plate disposed at both ends of the outer shaft, and an inner shaft mounting plate installed at both ends of the inner shaft; the outer mounting plate of adjacent sections is bolted to the outer shaft mounting plate, and the inner mounting plate of adjacent sections is bolted to the inner shaft mounting plate.

[0015] Furthermore, the drive mechanism includes: an inner drive assembly and an outer drive assembly mounted on the base frame, wherein the inner drive assembly and the outer drive assembly are independently configured; the top end of the first section of the inner shaft is mounted to the inner drive assembly, and the top end of the first section of the outer shaft is mounted to the outer drive assembly.

[0016] Furthermore, the internal drive assembly includes: an internal shaft drive motor mounted on the base frame via a first mounting bracket, a first internal drive wheel coaxially mounted with the output of the internal shaft drive motor, and a second internal drive wheel meshing parallel to the first internal drive wheel; the second internal drive wheel is coaxially mounted with the first section of the internal shaft rod.

[0017] Furthermore, the external drive assembly includes: an external shaft drive motor mounted on the base frame via a second mounting bracket, a first external drive wheel coaxially mounted with the output of the external shaft drive motor, and a second external drive wheel meshing parallel to the first external drive wheel; the second external drive wheel is mounted to the second section of the external shaft rod.

[0018] The present invention also provides a sampling method for a mineral soil sampling device, comprising the following:

[0019] When sampling of mineral soil at preset points is required: the control frame slides downward on the crane frame, and the drive mechanism controls the n-section drive rod group to rotate synchronously. The sampling shell and the rotating central shaft rotate synchronously and penetrate into the mineral soil on the vehicle. The spiral sampling component rotates synchronously to sample the mineral soil on the vehicle.

[0020] When the protective head descends to the sensing threshold of the sensor: the sensor sends a signal to control the underframe to stop descending on the trolley frame, then controls the underframe to slide upward on the trolley frame and stops the continuous drive of the drive mechanism. When the protective head detaches from the surface of the mine soil on the vehicle, the sampling operation ends.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention patent controls an n-section drive rod assembly via a drive mechanism, enabling the sampling probe mechanism to perform sampling operations at predetermined points. By placing connecting parts between adjacent drive rod assemblies, adaptive installation and integration of multiple drive rod assemblies are achieved, allowing the n-section drive rod assemblies to flexibly transmit the driving force of the drive mechanism to the sampling probe mechanism. During mineral soil sampling, the n-section drive rod assemblies need to penetrate the mineral soil layer under the control of the drive mechanism. Due to the significant soil penetration resistance, the n-section drive rod assemblies inevitably undergo a certain degree of deformation. Because adjacent drive rod assemblies are adaptively fitted together via connecting parts, the deformation can be effectively absorbed or eliminated by fine-tuning the connection state, thereby ensuring that the entire n-section drive rod assembly always maintains a vertical state. This avoids deviations in the sampling position due to accumulated deformation, improving the stability and accuracy of the sampling process.

[0023] This patent, through the design of the connecting parts group, allows for the adaptive installation and removal of the number of segments in the n-segment drive rod assembly based on the loading vehicle's parking location, vehicle size, type of sampled mineral soil, and the height and shape of the mineral soil accumulation. This not only facilitates the transportation, storage, maintenance, and installation of the drive rod assembly but also enables flexible and adaptive sampling of different mineral soil layers, expanding the device's practicality and further improving the stability of the coordinated transmission of the n-segment drive rod assembly.

[0024] 2. This invention patent integrates a sensing sensor inside the rotating shaft, aligning the sensor's detection end with the bottom surface of the loading vehicle. The sensor is set with a sensing threshold for the distance to the bottom surface of the loading vehicle. Specifically, a drive mechanism controls the coordinated rotation of n drive rods, causing the sampling shell and rotating shaft to rotate synchronously to sample the mineral soil inside the loading vehicle. During the descent of the sampling probe mechanism, the sensing sensor continuously detects. When the protective head descends to the sensing threshold of the sensor, the sampling probe mechanism stops descending. This patent, through the integrated sensor and the setting of the sensing threshold for the sensor to reach the bottom surface of the loading vehicle, ensures that the sampling probe mechanism can penetrate to the deepest point of the mineral soil for sampling, and stops descending when the sensing threshold is reached. This avoids collisions between the sampling probe mechanism and the bottom of the loading vehicle due to excessive descent, preventing structural damage to both the sampling probe mechanism and the loading vehicle, reducing equipment failure rate and maintenance costs, enhancing the safety of device operation, and preventing the bottom of the loading vehicle from being filled with other non-sampled mineral soil, thus improving the comprehensiveness of the mineral soil sampling and detection inside the loading vehicle.

[0025] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is an overall diagram of the soil sampling device.

[0028] Figure 2 This is a structural diagram of the drive mechanism.

[0029] Figure 3 This is a cross-sectional view of the drive mechanism.

[0030] Figure 4 This is a structural diagram of some parts of a soil sampling device.

[0031] Figure 5 This is a cross-sectional view of the drive linkage assembly.

[0032] Figure 6This is an exploded view of the connector assembly structure.

[0033] Figure 7 This is a first-view structural diagram of the sampling probe mechanism.

[0034] Figure 8 This is a second-view structural diagram of the sampling probe mechanism.

[0035] Figure 9 This is a structural diagram of some parts of the sampling probe mechanism.

[0036] Figure 10 This is a cross-sectional view of the sampling probe mechanism.

[0037] In the diagram, the following are the component numbers: 2. Base frame; 3. Drive mechanism; 31. Internal drive assembly; 311. First mounting bracket; 312. Internal shaft drive motor; 313. First internal drive wheel; 314. Second internal drive wheel; 32. External drive assembly; 321. Second mounting bracket; 322. External shaft drive motor; 323. First external drive wheel; 324. Second external drive wheel.

[0038] 4. Drive rod assembly; 41. Outer shaft; 42. Inner shaft; 43. Outer shaft mounting plate; 44. Inner shaft mounting plate;

[0039] 5. Sampling probe mechanism; 51. Sampling housing; 511. Concave teeth; 512. Hole; 52. Rotating central shaft; 53. Spiral sampling component; 54. Mounting cavity; 541. Fixing convex ring; 55. Inductive sensor; 56. Protective head; 561. Sealing ring; 57. Bearing assembly; 571. Outer ring disc; 572. Inner ring disc; 573. Bearing balls; 58. Central shaft connector; 581. Mounting flange; 59. Hollow channel;

[0040] 6. Connecting assembly; 61. Connecting housing; 62. Connecting inner shaft; 63. Connecting bearing assembly; 64. Outer mounting plate; 65. Inner mounting plate; 7. Rotating slip ring. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0043] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0044] Please refer to Figures 1-10 The present invention provides a soil sampling device, including a vertically arranged trolley frame, a base frame 2 slidably installed on the trolley frame, a drive mechanism 3 installed on the base frame 2, an n-section drive rod group 4 connected in series with the output end of the drive mechanism 3, and a sampling probe mechanism 5 installed at the bottom of the nth drive rod group 4.

[0045] A connecting component group 6 for tight installation is provided between two adjacent drive rod groups 4. The connecting component group 6 includes: a connecting housing 61, a connecting inner shaft 62 installed in the connecting housing 61, and a connecting bearing 63 installed between the connecting housing 61 and the connecting inner shaft 62. Both ends of the connecting housing 61 are provided with outer mounting plates 64 for installation with two adjacent drive rod groups 4, and both ends of the connecting inner shaft 62 are provided with inner mounting plates 65 for installation with two adjacent drive rod groups 4.

[0046] In this embodiment, the driving mechanism 3 controls the n-section driving rod assembly 4, enabling the sampling probe mechanism 5 to perform sampling operations at predetermined points. By placing the connecting assembly 6 between adjacent driving rod assemblies 4, adaptive installation and integration of multiple driving rod assemblies 4 are achieved, allowing the n-section driving rod assemblies 4 to flexibly transmit the driving force of the driving mechanism 3 to the sampling probe mechanism 5. Specifically, by installing both the outer mounting plate 64 and the inner mounting plate 65 with two adjacent driving rod assemblies 4, the two adjacent driving rod assemblies 4 are stably installed. Thus, when the driving mechanism 3 drives the first driving rod assembly 4 to rotate, the driving force can be transmitted to the n-section driving rod assemblies 4 through the connection of the connecting assembly 6, and ultimately to the sampling probe mechanism 5.

[0047] When sampling mineral soil, the n-section drive rod assembly 4 needs to penetrate into the mineral soil layer for sampling under the control of the drive mechanism 3. Due to the large resistance to soil penetration, the n-section drive rod assembly 4 will inevitably undergo a certain degree of deformation. Since the adjacent drive rod assemblies are installed in an adaptive fit through the connector assembly 6, the deformation can be effectively absorbed or eliminated by fine-tuning the connection state, thereby ensuring that the entire n-section drive rod assembly 4 always maintains a vertical state, avoiding deviation of the sampling position due to the accumulation of deformation, and improving the stability and accuracy of the sampling process.

[0048] Furthermore, the connection group 6 allows for the adaptive installation and removal of the number of segments in the n-segment drive rod group 4 based on the loader's parking location, vehicle size, type of sampled soil, and the height and shape of the soil accumulation. This not only facilitates the transportation, storage, maintenance, and installation of the drive rod group but also enables flexible and adaptive sampling of different soil layers from shallow to deep, expanding the device's practicality and further improving the stability of the coordinated transmission of the n-segment drive rod group 4.

[0049] like Figure 4 and Figure 5 As shown, the drive rod assembly 4 includes: an outer shaft 41, an inner shaft 42 installed inside the outer shaft 41, an outer shaft mounting plate 43 disposed at both ends of the outer shaft 41, and an inner shaft mounting plate 44 installed at both ends of the inner shaft 42; the outer mounting plate 64 of the adjacent section is bolted to the outer shaft mounting plate 43, and the inner mounting plate 65 of the adjacent section is bolted to the inner shaft mounting plate 44.

[0050] In this embodiment, by fixing the inner mounting plate 65 of the connector group 6 to the inner shaft mounting plate 44 of the drive rod group 4 with bolts, and fixing the outer mounting plate 64 of the connector group 6 to the outer shaft mounting plate 43 of the drive rod group 4 with bolts, the connector group 6 can assemble and install adjacent segments of the drive rod group 4, forming a stable transmission path that can transmit the driving force of the drive mechanism 3 to the sampling probe mechanism 5, thus ensuring the stability of the rotation control of the sampling probe mechanism 5.

[0051] Furthermore, the connection bearing 63 ensures that the connecting housing 61 and the connecting inner shaft 62 can rotate stably on their own without interfering with each other, thus further ensuring the stability of the sampling operation of the sampling probe mechanism 5.

[0052] To further clarify, the value of n is an integer greater than or equal to 2.

[0053] like Figures 7-10 As shown, the sampling probe mechanism 5 includes: a sampling housing 51 installed at the bottom of the nth drive rod group 4, a rotating central shaft 52 disposed within the sampling housing 51, a spiral sampling component 53 installed on the outer surface of the rotating central shaft 52, an installation cavity 54 disposed within the rotating central shaft 52, an induction sensor 55 installed within the rotating cavity, and a protective head 56 installed at the bottom end of the rotating central shaft 52; the detection end of the induction sensor 55 is aligned with the bottom surface of the loading vehicle and is set to a sensing threshold on the bottom surface of the loading vehicle; when the protective head 56 moves to the sensing threshold, the sampling probe mechanism 5 stops probing downwards.

[0054] In this embodiment, an induction sensor 55 is integrated inside the rotating shaft 52. The detection end of the induction sensor 55 is aligned with the bottom surface of the loading vehicle, and the induction sensor 55 is set with a sensing threshold for the distance to the bottom surface of the loading vehicle. Specifically, the drive mechanism 3 controls the n-section drive rod group 4 to rotate in tandem, so that the sampling housing 51 and the rotating shaft 52 rotate synchronously to sample the mineral soil inside the loading vehicle. During the descent of the sampling probe mechanism 5, the induction sensor 55 continuously senses and detects. When the protective head 56 descends to the sensing threshold of the induction sensor, the sampling probe mechanism 5 is controlled to stop descending.

[0055] This embodiment integrates the sensing sensor 55 and sets a sensing threshold for the sensing sensor 55 to the bottom of the loading vehicle. This ensures that the sampling probe mechanism 5 can drill into the deepest part of the soil for sampling and stops descending when the sensing threshold is reached. This avoids collisions between the sampling probe mechanism 5 and the bottom of the loading vehicle due to excessive descent, prevents structural damage to the sampling probe mechanism 5 and the loading vehicle, reduces equipment failure rate and maintenance costs, enhances the safety of device operation, and prevents the bottom of the loading vehicle from being filled with other non-sampling materials, thus improving the comprehensiveness of soil sampling and detection inside the loading vehicle.

[0056] In this embodiment, the base frame 2 is equipped with sliding wheels that cooperate with the overhead crane frame, thereby enabling the base frame 2 to slide up and down. This allows control of the n-section drive rod assembly 4 and the sampling probe mechanism 5 to extend into the mineral soil for fixed-point sampling. The n-section drive rod assembly 4 is integrated and connected by the connecting piece assembly 6, driving the base frame 2 to slide downwards. This allows the sampling probe mechanism 5 to extend into the mineral soil from a preset sampling point. Furthermore, the sampling operation of the sampling probe mechanism 5 can be controlled by the control drive mechanism 3. The specific control process is as follows: the drive mechanism 3 is started, and the rotating shaft 52 is controlled to rotate accordingly. The spiral sampling component 53 rotates synchronously, and the mineral sample is rotated and collected into the gap between the sampling shell 51 and the spiral sampling component 53. During this process, the sensing sensor 55 continuously senses the operation. When the protective head 56 moves downward to the sensing threshold of the sensing sensor 55, the sensing sensor 55 sends a signal, and then controls the sliding wheel to continue to slide down to a limited height or stop sliding down immediately, so as to ensure that the spiral sampling component 53 can collect the mineral sample close to the bottom of the loading vehicle and will not collide with the bottom of the loading vehicle, further ensuring the integrity of the sampling at the sampling point and ensuring the quality of the mineral sample.

[0057] Furthermore, during the sampling process of the driving sampling probe mechanism 5, both the sampling shell 51 and the rotating shaft 52 rotate under the drive of the driving mechanism 3. Through the coordinated cooperation of the sliding of the base frame 2, the spiral sampling component 53 can sample the mineral sample at the sampling point from top to bottom, ensuring the integrity of the sampling and the consistency of the mineral soil quality.

[0058] Furthermore, the sensing sensor 55 can be an eddy current probe. Since the loader body is made of metal, when the downward movement reaches the sensing threshold of the eddy current probe, a closed eddy current will be induced on the metal surface. The reverse magnetic field generated by the eddy current will change the impedance of the original coil inside the probe. At this time, the eddy current probe can transmit the signal to the control terminal of the sensing sensor 55 through the transmission line assembly. After receiving and processing the signal, the control terminal of the sensor 55 controls the control chassis 2 to continue descending a limited distance or immediately stop descending. In addition, the sensing sensor 55 can also use other components that can achieve the above effects, which will not be elaborated here.

[0059] like Figure 7 As shown, a central shaft connector 58 is mounted on the top of the rotating central shaft 52, and a bearing assembly 57 for relative rotation is provided between the central shaft connector 58 and the sampling housing 51.

[0060] Furthermore, the top of the central shaft connector 58 is provided with a mounting flange 581 for mounting with the nth drive rod assembly 4, and the bottom of the central shaft connector 58 is mounted with the top of the rotating central shaft 52.

[0061] In this embodiment, the central shaft connector 58 is installed on the inner side of the inner ring of the bearing assembly 57, and the sampling housing 51 is installed on the outer side of the outer ring of the bearing assembly 57. Therefore, the sampling housing 51 and the central shaft connector 58 can be driven to rotate independently without interfering with each other. The rotation frequency of the sampling housing 51 and the rotation frequency of the central shaft 52 can be adjusted separately according to the situation to ensure the coordination of the sampling housing 51 and the spiral sampling component 53 in sampling.

[0062] To further explain, when sampling the mineral soil at a preset location is required, the sampling housing 51 and the rotating shaft 52 are both in a rotating state. This, combined with the downward movement of the base frame 2, causes the sampling housing 51 to break through the surface of the onboard mineral soil and drives the rotating shaft 52 downward, allowing the spiral sampling component 53 to rotate and sample the mineral soil from top to bottom. During this process, the sensing sensor 55 remains in a continuous sensing state. When the protective head 56 descends to the sensing threshold of the sensing sensor 55, the sensing sensor 55 sends a signal to stop the downward movement of the base frame 2. Subsequently, the sampling housing 51 and the rotating shaft 52 stop rotating, and the upward sliding of the base frame 2 drives the sampling probe mechanism 5 to move upward until it detaches from the mineral soil surface. At this point, the mineral sample collected by the spiral sampling component 53 is stored in the gap between the sampling housing 51 and the spiral sampling component 53. The mineral sample at the sampling point is then obtained, completing the sampling operation.

[0063] like Figure 10As shown, the central shaft connector 58 has a hollow channel 59 for the transmission line group of the sensing sensor 55 to pass through. The transmission line group of the sensing sensor 55 passes through the hollow channel 59 in sequence, and the n-section drive rod group 4 is installed with the control end of the sensing sensor 55 through the rotating slip ring 7.

[0064] In this embodiment, the sensing sensor 55 is fixed inside the mounting cavity 54 and connected to the control terminal via a transmission cable assembly. When the rotating shaft 52 rotates, the sensing sensor 55 rotates synchronously, causing the transmission cable assembly to rotate and become entangled. The slip ring design prevents the transmission cable assembly from kinking or tangling during rotation, ensuring smooth electrical connection and eliminating the risk of signal interruption, increased wear, or data drift caused by the twisting of the transmission cable assembly. This guarantees the stability of electrical signal transmission and further ensures the continuity and high accuracy of the sensing sensor 55's detection under dynamic rotation conditions.

[0065] To further explain, the control terminal of the sensing sensor 55 receives the downward threshold signal sent by the sensing sensor 55 through the transmission line group, and controls the chassis 2 to continue to descend a limited distance or stop descending immediately by processing and analyzing the signal, and further controls the sliding direction of the chassis 2 on the crane frame.

[0066] like Figure 10 As shown, a fixing ring 541 for fixing the sensor 55 is provided in the mounting cavity 54. The fixing ring fixes the sensor 55 to the end near the protective head 56, ensuring the stability and accuracy of the sensor 55 in continuous sensing operation, and further ensuring the controllability of the descent depth of the sampling probe mechanism 5.

[0067] like Figure 8 As shown, the bottom of the sampling shell 51 is provided with several concave teeth 511 for piercing and sampling.

[0068] Furthermore, the sampling housing 51 is provided with several holes 512 for receiving samples.

[0069] In this embodiment, the arrangement of several concave teeth 511 enhances the penetration and sampling capabilities of the sampling shell 51. When the sampling shell 51 rotates and presses down on the surface of the vehicle-mounted mineral soil, the concave teeth 511 first act as stress concentration points, generating high local pressure with a small contact area, thereby efficiently penetrating the outer surface of the vehicle-mounted mineral soil, reducing the rotational resistance of the sampling shell 51, and improving the accuracy and efficiency of sampling.

[0070] Furthermore, the hole 512 allows the mineral soil at the sampling point to be guided into the gap between the spiral sampling component 53 and the sampling shell 51 under pressure when the sampling shell 51 rotates and descends to break into the surface of the mineral soil on the vehicle. This, combined with the rotation of the spiral sampling component 53, enables rapid and efficient collection of mineral samples, improving sampling efficiency and reliability.

[0071] like Figure 10 As shown, a sealing ring 561 is provided on the inner side of the protective head 56 for engaging with the rotating central shaft 52.

[0072] In this embodiment, the protective head 56 is tightly engaged with the rotating central shaft 52 through the setting of the sealing ring 561, and the detection end of the sensing sensor 55 is in contact with the inner side of the protective head 56, which can more accurately and continuously sense whether the downward distance of the protective head 56 has reached the sensing threshold, ensuring the real-time sensing.

[0073] Furthermore, the protective head 56 is made of ceramic. Since the loader is usually made of metal, the sensing sensor 55 determines whether the sensing threshold has been reached by sensing the metal. Therefore, the application of the ceramic protective head 56 can prevent interference with the sensing sensor 55 and ensure the accuracy of the sensing sensor 55.

[0074] It should be further noted that the protective head 56 can also be made of other non-metallic materials that can achieve the above effects, which will not be elaborated here.

[0075] like Figure 2 and Figure 3 As shown, the drive mechanism 3 includes: an inner drive assembly 31 and an outer drive assembly 32 mounted on the base frame 2, both of which are independently configured; the top end of the first inner shaft 42 is mounted to the inner drive assembly 31, and the top end of the first outer shaft 41 is mounted to the outer drive assembly 32.

[0076] Furthermore, the inner drive assembly 31 includes: an inner shaft drive motor 312 mounted on the base frame 2 via a first mounting bracket 311; a first inner drive wheel 313 coaxially mounted with the output of the inner shaft drive motor 312; and a second inner drive wheel meshing parallel to the first inner drive wheel 313; the second inner drive wheel 314 is coaxially mounted with the first inner shaft rod 42.

[0077] Furthermore, the external drive assembly 32 includes: an external shaft drive motor 322 mounted on the base frame 2 via a second mounting bracket 321; a first external drive wheel 323 coaxially mounted with the output of the external shaft drive motor 322; and a second external drive wheel 324 meshing parallel to the first external drive wheel 323; the second external drive wheel 324 is mounted with the second external shaft rod 41.

[0078] In this embodiment, the second inner drive wheel 314 is coaxially mounted with the inner shaft 42 of the first drive rod assembly 4, so that when the second inner drive wheel 314 rotates, the first inner shaft 42 can rotate synchronously. Furthermore, through the fixed mounting of the inner shaft mounting plate 44 and the inner mounting plate 65, the inner shafts 42 of all n drive rod assemblies 4 rotate synchronously with the second inner drive wheel 314, causing the rotating central shaft 52 mounted at the bottom of the nth drive rod assembly 4 to rotate synchronously as well, thereby controlling the rotation of the spiral sampling element 53 mounted on the rotating central shaft 52 for sampling. The rotation control process of the second inner drive wheel 314 is as follows: the inner shaft drive motor 312 is driven, causing the first inner drive wheel 313, coaxially mounted with the output shaft of the inner shaft drive motor 312, to rotate synchronously, thereby causing the second inner drive wheel 314, which meshes with the first inner drive wheel 313, to rotate accordingly.

[0079] The second outer drive wheel 324 is coaxially mounted with the outer shaft 41 of the first drive rod assembly 4, so that when the second outer drive wheel 324 rotates, the first outer shaft 41 can rotate synchronously. Furthermore, through the fixed mounting of the outer shaft mounting plate 43 and the outer mounting plate 64, all the outer shafts 41 of the nth drive rod assembly 4 rotate synchronously with the second outer drive wheel 324, causing the sampling shell 51 mounted at the bottom of the nth drive rod assembly 4 to rotate synchronously as well. This controls the rotation of the sampling shell 51 to penetrate the surface of the mineral soil, assisting the spiral sampling component 53 in sampling. The rotation control process of the second outer drive wheel 324 is as follows: the outer shaft drive motor 322 is driven, causing the first outer drive wheel 323, coaxially mounted with the output shaft of the outer shaft drive motor 322, to rotate synchronously, thereby causing the second outer drive wheel 324, which meshes with the first outer drive wheel 323, to rotate accordingly.

[0080] Furthermore, gearboxes are installed between the inner shaft drive motor 312 and the first inner drive wheel 313, and between the outer shaft drive motor 322 and the first outer drive wheel 323. The gearboxes are used to adjust the rotation frequency of the inner shaft drive motor 312 / outer shaft drive motor 322 connected to them, thereby adjusting the rotation speed of the spiral sampling component 53 and the penetration speed of the sampling shell 51, ensuring the efficiency and stability of sampling.

[0081] like Figures 1-10 As shown, the present invention also provides a sampling method for a mineral soil sampling device, comprising the following:

[0082] When it is necessary to sample the mineral soil at the preset location: the control frame 2 slides downward on the crane frame, and the drive mechanism 3 controls the n-section drive rod group 4 to rotate synchronously. The sampling shell 51 and the rotating central shaft 52 rotate synchronously and penetrate into the mineral soil on the vehicle. The spiral sampling component 53 rotates synchronously to sample the mineral soil on the vehicle.

[0083] When the protective head 56 descends to the sensing threshold of the sensing sensor 55: the sensing sensor 55 sends a signal to control the base frame 2 to stop descending on the trolley frame, and then controls the base frame 2 to slide upward on the trolley frame, and stops the continuous driving of the drive mechanism 3. When the protective head 56 detaches from the surface of the vehicle-mounted mineral soil, the sampling operation ends.

[0084] In this embodiment, the specific method is as follows:

[0085] Start the inner shaft drive motor 312 to control the rotation of the second inner drive wheel, which drives the inner shaft rod 42 of the first drive rod group 4, which is coaxially mounted with the second inner drive wheel, to rotate synchronously. The inner shaft rods 42 of the nth drive rod group 4 all rotate synchronously with the inner shaft rods 42 of the first drive rod group 4 through the installation of the connecting piece group 6. Consequently, the rotating central shaft 52 installed at the bottom of the inner shaft rod 42 of the nth drive rod group 4 rotates synchronously. That is, the rotation of the rotating central shaft 52 can be controlled by controlling the rotation of the second inner drive wheel 314.

[0086] The outer shaft drive motor 322 is started synchronously, controlling the second outer drive wheel 324 to rotate, which drives the outer shaft 41 of the first drive rod group 4, which is coaxially mounted with the second outer drive wheel 324, to rotate synchronously. The outer shaft 41 of the n drive rod groups 4 all rotate synchronously with the outer shaft 41 of the first drive rod group 4 through the installation of the connecting piece group 6. Consequently, the sampling shell 51 installed at the bottom of the outer shaft 41 of the nth drive rod group 4 rotates synchronously. That is, the rotation of the sampling shell 51 can be controlled by controlling the rotation of the second outer drive wheel 324.

[0087] The control frame 2 slides down on the overhead crane frame, and the n-section drive rod group 4 moves down accordingly, causing the sampling probe mechanism 5 to penetrate the outer surface of the vehicle-mounted soil and continue to move deeper as the frame 2 continues to move down. During this process, the sensing sensor 55 continuously senses the operation, and the rotating central shaft 52 continuously rotates to drive the spiral sampling component 53 to sample the soil at the preset sampling point, so that the soil sample is stored in the gap between the spiral sampling component 53 and the sampling shell 51.

[0088] When the protective head 56 descends to the sensing threshold set by the sensing sensor 55 for the distance to the bottom surface of the loading vehicle, the sensing sensor 55 sends a signal, which is transmitted to the control terminal of the sensing sensor 55 through the transmission cable group. After receiving and processing the signal, the control terminal of the sensor 55 controls the chassis 2 to stop descending or to continue descending for a limited distance and then stop descending. Subsequently, the chassis 2 is controlled to slide upward on the traveling frame. At the same time, the continuous driving of the inner shaft drive motor 312 and the outer shaft drive motor 322 is stopped. When the chassis 2 continues to slide upward until the protective head 56 is separated from the ore on the vehicle, the sampling operation ends.

[0089] It should be understood that the specific embodiments described above are for illustrative purposes only and are not intended to limit the scope of the invention. Obvious variations or modifications derived from the spirit of the invention are still within the scope of protection of the invention.

Claims

1. A mineral soil sampling device, characterized in that, It includes a vertically arranged overhead crane frame, a base frame (2) slidably mounted on the overhead crane frame, a drive mechanism (3) mounted on the base frame (2), an n-section drive rod assembly (4) connected in series with the output end of the drive mechanism (3), and a sampling probe mechanism (5) mounted at the bottom of the nth drive rod assembly (4). A connecting member assembly (6) for tight installation is provided between two adjacent drive rod assemblies (4), the connecting member assembly (6) comprising: Connecting housing (61), connecting inner shaft (62) installed inside the connecting housing (61), and connecting bearing (63) installed between the connecting housing (61) and the connecting inner shaft (62). Both ends of the connecting housing (61) are provided with outer mounting plates (64) for mounting with two adjacent drive rod groups (4), and both ends of the connecting inner shaft (62) are provided with inner mounting plates (65) for mounting with two adjacent drive rod groups (4).

2. The mineral soil sampling device according to claim 1, characterized in that, The sampling probe mechanism (5) includes: a sampling housing (51) installed at the bottom of the drive rod assembly (4) in the nth section; a rotating central shaft (52) disposed in the sampling housing (51); a spiral sampling component (53) installed on the outer surface of the rotating central shaft (52); a mounting cavity (54) disposed in the rotating central shaft (52); a sensing sensor (55) installed in the rotating cavity; and a protective head (56) installed at the bottom end of the rotating central shaft (52). The detection end of the sensor (55) is aligned with the bottom surface of the loading vehicle and a sensing threshold is set to the bottom surface of the loading vehicle. When the protective head (56) moves to the sensing threshold, the sampling probe mechanism (5) stops probing downward.

3. The mineral soil sampling device according to claim 2, characterized in that, A central shaft connector (58) is mounted on the top of the rotating central shaft (52), and a bearing assembly (57) for relative rotation is provided between the central shaft connector (58) and the sampling housing (51).

4. The mineral soil sampling device according to claim 3, characterized in that, The top end of the central shaft connector (58) is provided with a mounting flange (581) for mounting with the drive rod assembly (4) of the nth section, and the bottom end of the central shaft connector (58) is mounted with the top end of the rotating central shaft (52).

5. The mineral soil sampling device according to claim 4, characterized in that, The central shaft connector (58) has a hollow channel (59) for the transmission line group of the sensing sensor (55) to pass through. The transmission line group of the sensing sensor (55) passes through the hollow channel (59) and n sections of the drive rod group (4) in sequence and is installed with the control end of the sensing sensor (55) through the rotating slip ring (7).

6. The mineral soil sampling device according to claim 1, characterized in that, The drive rod assembly (4) includes: an outer shaft (41), an inner shaft (42) installed in the outer shaft (41), an outer shaft mounting plate (43) disposed at both ends of the outer shaft (41), and an inner shaft mounting plate (44) installed at both ends of the inner shaft (42). The outer mounting plate (64) of the adjacent section is bolted to the outer shaft mounting plate (43), and the inner mounting plate (65) of the adjacent section is bolted to the inner shaft mounting plate (44).

7. The mineral soil sampling device according to claim 6, characterized in that, The drive mechanism (3) includes an internal drive assembly (31) and an external drive assembly (32) mounted on the base frame (2), wherein the internal drive assembly (31) and the external drive assembly (32) are independently configured. The top end of the inner shaft (42) in the first section is installed with the inner drive assembly (31), and the top end of the outer shaft (41) in the first section is installed with the outer drive assembly (32).

8. The mineral soil sampling device according to claim 7, characterized in that, The internal drive assembly (31) includes: an internal shaft drive motor (312) mounted on the base frame (2) via a first mounting bracket (311), a first internal drive wheel (313) coaxially mounted with the output of the internal shaft drive motor (312), and a second internal drive wheel meshing parallel to the first internal drive wheel (313); the second internal drive wheel (314) is coaxially mounted with the first section of the internal shaft rod (42).

9. The mineral soil sampling device according to claim 7, characterized in that, The external drive assembly (32) includes: an external shaft drive motor (322) mounted on the base frame (2) via a second mounting bracket (321), a first external drive wheel (323) coaxially mounted with the output of the external shaft drive motor (322), and a second external drive wheel (324) meshing parallel to the first external drive wheel (323); the second external drive wheel (324) is mounted with the second section of the external shaft rod (41).

10. The sampling method of the mineral soil sampling device according to claim 2, characterized in that, Includes the following: When it is necessary to sample the mineral soil at the preset point: the control frame (2) slides down on the crane frame, and the drive mechanism (3) controls the n-section drive rod group (4) to rotate. The sampling shell (51) and the rotating shaft (52) rotate synchronously and penetrate into the mineral soil on the vehicle. The spiral sampling component (53) rotates synchronously to sample the mineral soil on the vehicle. When the protective head (56) descends to the sensing threshold of the sensing sensor (55): the sensing sensor (55) sends a signal to control the base frame (2) to stop descending on the trolley frame, and then controls the base frame (2) to slide upward on the trolley frame and stops the continuous drive of the drive mechanism (3). When the protective head (56) detaches from the surface of the vehicle-mounted soil, the sampling operation ends.

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