Geological exploration drilling core sample splitting equipment

Abstract

The invention relates to the technical field of rock core sample splitting, and discloses geological exploration drilling rock core sample splitting equipment which comprises a sample splitting machine body, a sample splitting blade arranged in the sample splitting machine body in a limited sliding manner, and a clamping unit arranged on the sample splitting machine body, the clamping unit comprises a clamping component arranged on the sample splitting machine body and an adjusting component arranged on the clamping component. According to the geological exploration drilling rock core sample splitting equipment, a sample splitting blade slides in a sample splitting machine body to split a rock core sample, a rocker is rocked to drive a bidirectional threaded rod to rotate, so that two nuts relatively slide or oppositely slide on the bidirectional threaded rod, and a driving rod drives a driving block to slide on the bidirectional threaded rod to drive a U-shaped frame to move, so that the rock core sample is split; and a first connecting shaft, a second connecting shaft and a connecting strip are driven to move, so that a clamping plate is driven to move to clamp a rock core sample, and the probability that the rock core sample is cracked during splitting is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of core splitting and sampling, and in particular to a core splitting and sampling device for geological exploration and drilling. Background Art

[0002] In the field of geology, cylindrical rock samples drilled by ring drill bits and other coring tools are called cores. Cores are important physical geological data for studying and understanding underground geology and mineral conditions. In geological and mineral exploration, when using cores for analysis and research, it is usually necessary to split the cores, half of which is used for sampling and testing, to understand and analyze the geological conditions, and the other half is sealed for sample protection.

[0003] Before splitting, the existing core splitting machine usually needs to put the rock sample directly into the core splitting machine, and then manually align the center of the rock sample with the bottom of the splitting knife, and achieve the limit fixation of the rock sample through the abutment of the splitting knife, and then split the sample. Due to the high hardness of the rock, the rock is easy to break during the splitting process, and will scatter on the ground after breaking, forming gravel of different sizes, which is not conducive to the collection of rocks and subsequent sampling and testing of cores. And after the core breaks, it will form flying fragments, which may pose a threat to the safety of the splitting personnel and cause scratches. Moreover, when clamping rocks of different diameters, the height of the center of the circle of rocks of different diameters is different after being placed, so the clamping angle is different. When the rock is thicker, the center of gravity of the rock is higher, and the required clamping angle is larger. If the clamping device cannot be adaptively adjusted, the clamping device will not be able to cover and clamp the rock well, so the rock will still break when splitting. Summary of the invention

[0004] In view of the fact that the core in the existing technology is easy to break during the splitting process, which affects the experimental results, and the clamping angle cannot be adaptively adjusted when the rock is clamped, the problem of rock breaking still exists, a geological exploration drilling core splitting device is proposed.

[0005] The present application provides a geological exploration drilling core splitting device, the purpose of which is to use a clamping mechanism to reduce the probability of core collapse when splitting the core, and the clamping mechanism can be adaptively adjusted to cover and clamp cores of different coarsenesses.

[0006] The technical solution of the present invention is: a geological exploration drilling core splitting device, comprising a splitting machine body, a splitting blade limitedly slidably arranged in the splitting machine body, and a clamping unit arranged on the splitting machine body;

[0007] The clamping unit comprises a clamping component arranged on the splitting machine body and an adjusting component arranged on the clamping component, and the clamping component comprises a driving component arranged on the splitting machine body and a clamping component arranged on the driving component;

[0008] The driving assembly includes a bidirectional threaded rod rotatably connected to the bottom of the splitting machine body, and two symmetrically distributed nuts are threadedly connected to the bidirectional threaded rod. Driving blocks are slidingly connected to the two nuts on the opposite sides of the two nuts. The driving block and the nut are fixedly connected by the driving rod, and a rocker is fixedly connected to one end of the bidirectional threaded rod.

[0009] Furthermore, the clamping assembly includes a U-shaped frame fixedly mounted on the driving block, one end of the U-shaped frame is rotatably connected to a first connecting shaft, the other end of the U-shaped frame is rotatably connected to a second connecting shaft, the first connecting shaft and the second connecting shaft are rotatably connected, connecting strips are fixedly connected to the shaft walls of the first connecting shaft and the second connecting shaft, a clamping plate is fixedly connected to the connecting strip, and an inclined surface is provided on the clamping plate.

[0010] Furthermore, the clamping component further comprises a first limit assembly arranged between the splitting machine body and the clamping assembly;

[0011] The first limiting assembly includes two symmetrically distributed first limiting rods fixedly connected to the U-shaped frame, a first limiting groove is provided on the splitting machine body corresponding to the first limiting rod, and the first limiting rod is slidably connected to the inner side of the first limiting groove.

[0012] Further, the adjustment component includes a rotating assembly arranged on the U-shaped frame, a second limiting assembly arranged in the rotating assembly, a torsion assembly arranged between the first connecting shaft and the second connecting shaft, a sliding assembly arranged on the U-shaped frame, and a buffer assembly arranged on the driving block;

[0013] The rotating assembly includes two symmetrically distributed sliders that are limitedly slidably connected to the U-shaped frame, the separated ends of the first connecting shaft and the second connecting shaft are respectively rotatably connected to the two sliders, an active cavity is opened at the end of the first connecting shaft away from the second connecting shaft, a rotating T-rod is limitedly slidably connected to the inner side of the active cavity, a compression spring is fixedly connected between the rotating T-rod and the bottom wall of the active cavity, the end of the rotating T-rod away from the compression spring passes through the slider and is fixedly connected to a turning knob, two symmetrically distributed plug rods are fixedly connected to the turning knob, a plurality of evenly distributed slots are opened on the slider, and the plug rods are plugged into the inner sides of the slots.

[0014] Furthermore, the second limiting assembly includes two symmetrically distributed second limiting grooves opened in the movable cavity, and limiting blocks are slidably connected in the two second limiting grooves, and the two limiting blocks are fixedly connected to the rotating T-bar.

[0015] Furthermore, the torsion assembly includes a sleeve rotatably connected between a first connecting shaft and a second connecting shaft, the first connecting shaft is located on one end inside the sleeve and is fixedly connected to a fixing rod, the fixing rod is fixedly sleeved with a second external gear on one end away from the first connecting shaft, a fixing block is fixedly connected to the inner wall of the sleeve, the first external gear is rotatably connected to the fixing block, the first external gear and the second external gear are meshed with each other, and the second connecting shaft is located on one end inside the sleeve and is fixedly connected to an internal gear, the first external gear and the internal gear are meshed with each other.

[0016] Furthermore, the sliding assembly includes two symmetrically distributed sliding grooves opened on the U-shaped frame, two sliding blocks are respectively slidably connected to the inner sides of the two sliding grooves, a return spring is fixedly connected between the sliding block and the inner wall of the sliding groove, a vertical rod is also fixedly connected to the U-shaped frame, a sliding groove is opened on the top of the vertical rod, a sliding block is slidingly connected to the inner side of the sliding groove, and the sliding block is fixedly connected to the sleeve.

[0017] Furthermore, the buffer assembly includes two symmetrically distributed buffer cavities opened on the driving block, and a buffer T-rod is slidably connected to the inner side of the two buffer cavities. The buffer T-rod is fixedly connected to the U-shaped frame at one end away from the buffer cavity, and a buffer spring is fixedly connected between the buffer T-rod and the bottom wall of the buffer cavity.

[0018] Beneficial effects of the present invention:

[0019] 1. The core sample is split by sliding the splitting blade in the splitting machine body, and the bidirectional threaded rod is driven to rotate by shaking the rocker, so that the two nuts slide relative to or away from each other on the bidirectional threaded rod. The driving block is driven to slide on the bidirectional threaded rod by the driving rod, and the U-shaped frame is driven to move, and the first connecting shaft, the second connecting shaft and the connecting strip are driven to move, and then the clamping plate is driven to move to clamp the core sample, thereby reducing the probability of the core sample breaking when splitting.

[0020] 2. By pulling the knob, the rotating T-bar is driven to move, and the compression spring is stretched, driving the insertion rod to move, so that the insertion rod is separated from the inner side of the slot, and the knob is turned to drive the rotating T-bar to rotate, drive the first connecting shaft to rotate, drive the fixed rod and the second external gear to rotate, and the second external gear and the first external gear are meshed with each other, thereby driving the first external gear to rotate in the opposite direction on the fixed block, and then driving the internal gear to rotate in the opposite direction to the rotation direction of the second external gear, and driving the second connecting shaft to rotate, so that the second connecting shaft rotates and rotates in the opposite direction to the first connecting shaft, thereby adjusting the angle between the two clamping plates, and thereby clamping core samples of different sizes.

[0021] 3. The core sample passing through the two halves will open to both sides, driving the clamping plate to move away from one side of the core sample, driving the U-shaped frame to move away from one side of the core sample, driving the buffer T-shaped rod to slide into the buffer cavity, squeezing the buffer spring. Under the action of the buffer spring, the buffer T-shaped rod is buffered, the U-shaped frame is buffered, and then the clamping plate is buffered, so that when the core sample is split, the clamping plate has a certain buffer space, so that the split core sample will not open the device and cause damage to the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping unit of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the driving assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the buffer assembly of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the regulating component of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the torsion assembly of the present invention;

[0030] Fig. 9 It is a schematic diagram of the local structure of the torsion assembly of the present invention.

[0031] In the figure:

[0032] 1. Splitting machine body; 11. Splitting blade; 2. Driving assembly; 21. Rocker; 22. Bidirectional threaded rod; 23. Driving block; 24. Nut; 25. Driving rod; 3. Clamping assembly; 31. U-shaped frame; 32. Clamping plate; 33. Connecting strip; 34. Inclined surface; 35. First connecting shaft; 36. Second connecting shaft; 4. First limiting assembly; 41. First limiting groove; 42. First limiting rod; 5. Rotating assembly; 51. Turning knob; 52. Inserting rod; 53. Slot; 54. Rotating T-shaped rod ; 55. Slider; 56. Compression spring; 57. Movable cavity; 6. Second limiting assembly; 61. Second limiting groove; 62. Limiting block; 7. Torsion assembly; 71. Sleeve; 72. Internal gear; 73. Fixed rod; 74. Fixed block; 75. First external gear; 76. Second external gear; 8. Sliding assembly; 81. Vertical rod; 82. Slide groove; 83. Sliding block; 84. Sliding groove; 85. Reset spring; 9. Buffer assembly; 91. Buffer spring; 92. Buffer T-bar; 93. Buffer cavity. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, provides a geological exploration drilling core splitting device, including a splitting machine body 1, and a splitting blade 11 limitedly slidably installed in the splitting machine body 1, and also includes a clamping unit installed on the splitting machine body 1; the clamping unit includes a clamping component installed on the splitting machine body 1, and an adjusting component installed on the clamping component, the clamping component includes a driving assembly 2 installed on the splitting machine body 1, and a clamping assembly 3 installed on the driving assembly 2; the driving assembly 2 includes a bidirectional threaded rod 22 rotatably connected to the bottom of the splitting machine body 1, the bidirectional threaded rod 22 is threaded with two symmetrically distributed nuts 24, the bidirectional threaded rod 22 is located on the opposite sides of the two nuts 24 and is limitedly slidably connected with a driving block 23, the driving block 23 and the nut 24 are fixedly connected by a driving rod 25, and one end of the bidirectional threaded rod 22 is fixedly connected with a rocker 21.

[0035] Specifically, when in use, the core sample is placed in the splitting machine body 1, and the splitting blade 11 slides in the splitting machine body 1 to split the core sample. The core sample is clamped by the clamping unit to prevent the core sample from breaking apart during splitting, causing damage to the core sample and threatening the safety of personnel. The rocker 21 is shaken to drive the bidirectional threaded rod 22 to rotate, so that the two nuts 24 slide relative to or away from each other on the bidirectional threaded rod 22, and the drive block 23 is driven to slide on the bidirectional threaded rod 22 by the drive rod 25. Under the action of the clamping assembly 3, the core sample is clamped, so that the core sample is not easy to break apart during splitting, thereby protecting the core sample and reducing the safety risk of the operator.

[0036] Reference Figure 5 and Figure 6 The clamping assembly 3 includes a U-shaped frame 31 fixedly mounted on the driving block 23, one end of the U-shaped frame 31 is rotatably connected to a first connecting shaft 35, and the other end of the U-shaped frame 31 is rotatably connected to a second connecting shaft 36, the first connecting shaft 35 and the second connecting shaft 36 are rotatably connected, and connecting strips 33 are fixedly connected to the shaft walls of the first connecting shaft 35 and the second connecting shaft 36, and a clamping plate 32 is fixedly connected to the connecting strip 33, and an inclined surface 34 is provided on the clamping plate 32.

[0037] Specifically, the driving block 23 moves on the bidirectional threaded rod 22, driving the U-shaped frame 31 to move, driving the first connecting shaft 35 and the second connecting shaft 36 and the connecting bar 33 to move, and then driving the clamping plate 32 to move, clamping the core sample, reducing the probability of the core sample breaking when splitting, the first connecting shaft 35 and the second connecting shaft 36 rotate on the U-shaped frame 31, driving the connecting bar 33 to rotate, and then driving the clamping plate 32 to rotate, and adjusting the opening angle of the two clamping plates 32, which can adapt to the clamping of core samples of different thicknesses, thereby improving the use range of the device.

[0038] Reference Figure 1 and Figure 2 The clamping component also includes a first limiting assembly 4 installed between the splitting machine body 1 and the clamping assembly 3; the first limiting assembly 4 includes two symmetrically distributed first limiting rods 42 fixedly connected to the U-shaped frame 31, and a first limiting groove 41 is opened on the splitting machine body 1 corresponding to the first limiting rod 42, and the first limiting rod 42 is slidably connected to the inner side of the first limiting groove 41.

[0039] Specifically, when the U-shaped frame 31 moves, the first limiting rod 42 slides inside the first limiting groove 41 to limit the U-shaped frame 31 and the driving block 23. Under the action of the driving rod 25, the nut 24 is limited, and the circular rotation of the nut 24 is restricted, so that the nut 24 slides on the bidirectional threaded rod 22, ensuring that the U-shaped frame 31 moves stably on the splitting machine body 1. Under the action of the clamping assembly 3, the core sample is clamped, reducing the probability of the core sample breaking and injuring people during splitting.

[0040] Example 2, reference Figure 4-Figure 9 , which is the second embodiment of the present invention, which is different from the first embodiment in that: the adjusting component includes a rotating component 5 installed on the U-shaped frame 31, a second limiting component 6 installed in the rotating component 5, a torsion component 7 installed between the first connecting shaft 35 and the second connecting shaft 36, a sliding component 8 installed on the U-shaped frame 31, and a buffer component 9 installed on the driving block 23; the rotating component 5 includes two symmetrically distributed sliders 55 connected to the U-shaped frame 31 by limiting sliding, and the first connecting shaft 35 and the second connecting shaft 36 are separated from each other at the ends. They are rotatably connected to the two sliders 55 respectively, and a movable cavity 57 is provided at one end of the first connecting shaft 35 away from the second connecting shaft 36, and a rotating T-shaped rod 54 is slidably connected to the inner side of the movable cavity 57, and a compression spring 56 is fixedly connected between the rotating T-shaped rod 54 and the bottom wall of the movable cavity 57, and one end of the rotating T-shaped rod 54 away from the compression spring 56 passes through the slider 55 and is fixedly connected to a rotating knob 51, and two symmetrically distributed insertion rods 52 are fixedly connected to the rotating knob 51, and a plurality of evenly distributed slots 53 are provided on the slider 55, and the insertion rods 52 are inserted into the inner sides of the slots 53.

[0041] Specifically, by rotating the rotating assembly 5, the clamping assembly 3 is adjusted so that the clamping assembly 3 can adapt to the clamping of core samples of different sizes. By pulling the knob 51, the rotating T-bar 54 is driven to move, and the compression spring 56 is stretched, driving the insertion rod 52 to move, so that the insertion rod 52 is separated from the inner side of the slot 53. The knob 51 is turned to drive the rotating T-bar 54 to rotate, and the first connecting shaft 35 is driven to rotate. Under the action of the torsion assembly 7, the second connecting shaft 36 is rotated and rotated in the opposite direction to the first connecting shaft 35, thereby driving the two connecting bars 33 to rotate in the opposite direction, and driving the two clamping plates 32 to rotate and rotate in the opposite direction. On the contrary, the angle between the two clamping plates 32 is adjusted to clamp core samples of different sizes, and the knob 51 is loosened, the compression spring 56 is reset, and the rotating T-bar 54 is driven to move toward the inside of the movable cavity 57, and the knob 51 is driven to move toward the side of the slider 55, so that the insertion rod 52 is plugged into the inside of the slot 53, the knob 51 is limited, the rotating T-bar 54 is limited, and the first connecting shaft 35 is limited, so that the first connecting shaft 35 and the second connecting shaft 36 no longer rotate, and the angle between the two clamping plates 32 is adjusted, thereby improving the practicability of the device and making the device more flexible to use.

[0042] Reference Figure 7 The second limiting assembly 6 includes two symmetrically distributed second limiting grooves 61 opened in the active cavity 57 , and the two second limiting grooves 61 are both slidably connected with limiting blocks 62 , and the two limiting blocks 62 are both fixedly connected to the rotating T-bar 54 .

[0043] Specifically, when the rotating T-bar 54 slides inside the movable cavity 57, the limit block 62 will slide inside the second limit groove 61. When the rotating T-bar 54 rotates, the first connecting shaft 35 rotates with the cooperation of the limit block 62 and the second limit groove 61, so that the rotating knob 51 can drive the first connecting shaft 35 to rotate, thereby realizing the adjustment of the clamping assembly 3.

[0044] Reference Figure 8 and Fig. 9 The torsion assembly 7 includes a sleeve 71 rotatably connected between the first connecting shaft 35 and the second connecting shaft 36. The first connecting shaft 35 is located on the inner side of the sleeve 71 and is fixedly connected to a fixing rod 73 at one end thereof. The fixing rod 73 is fixedly sleeved with a second external gear 76 at one end away from the first connecting shaft 35. A fixing block 74 is fixedly connected to the inner wall of the sleeve 71. The fixing block 74 is rotatably connected to the first external gear 75. The first external gear 75 and the second external gear 76 are meshed with each other. The second connecting shaft 36 is located on the inner side of the sleeve 71 and is fixedly connected to an internal gear 72 at one end thereof. The first external gear 75 and the internal gear 72 are meshed with each other.

[0045] Specifically, when the first connecting shaft 35 rotates, it drives the fixing rod 73 and the second outer gear 76 to rotate, and the second outer gear 76 meshes with the first outer gear 75, thereby driving the first outer gear 75 to rotate in the opposite direction on the fixing block 74, and the first outer gear 75 meshes with the inner gear 72, thereby driving the inner gear 72 to rotate in a direction opposite to that of the second outer gear 76, thereby driving the second connecting shaft 36 to rotate, so that the first connecting shaft 35 and the second connecting shaft 36 rotate in opposite directions, thereby adjusting the angles of the two clamping plates 32. The remaining structures are the same as those of Example 1.

[0046] Example 3, reference Figure 5 and Figure 6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the sliding assembly 8 includes two symmetrically distributed sliding grooves 82 opened on the U-shaped frame 31, and the two sliders 55 are respectively slidably connected to the inner sides of the two sliding grooves 82. A return spring 85 is fixedly connected between the slider 55 and the inner wall of the sliding groove 82. A vertical rod 81 is also fixedly connected to the U-shaped frame 31. A sliding groove 84 is opened on the top of the vertical rod 81. A sliding block 83 is slidably connected to the inner side of the sliding groove 84, and the sliding block 83 is fixedly connected to the sleeve 71.

[0047] Specifically, when the clamping assembly 3 clamps the core sample, the two clamping plates 32 tightly clamp the core sample under the action of the inclined surface 34. When the clamping plate 32 continues to move toward the side of the core sample, when the core sample is small, the clamping plate 32 on the bottom side will move downward under the action of the core sample, driving the first connecting shaft 35 and the second connecting shaft 36 to move downward, driving the slider 55 to slide downward inside the slide groove 82, squeezing the reset spring 85, so that the sliding block 83 slides downward inside the slide groove 84, so that the slider 55 will not be separated from the slide groove 82 when sliding inside the slide groove 82, and the clamping plate 32 on the upper side will move toward the core sample. One side of the sample is approached until the midline of the angle between the two clamping plates 32 coincides with the midline of the core sample, and then the core sample is clamped under the joint action of the two clamping plates 32. When the core sample is large, the upper clamping plate 32 will move upward under the action of the core sample, driving the first connecting shaft 35 and the second connecting shaft 36 to move upward, so that the slider 55 slides upward in the slide groove 82, and the reset spring 85 is stretched until the clamping plate 32 on the bottom side contacts the core sample, thereby clamping the core sample. When the core sample is split, the possibility of the core sample collapsing is reduced, thereby achieving the clamping of core samples of different sizes.

[0048] Reference Figure 2 and Figure 3The buffer assembly 9 includes two symmetrically distributed buffer cavities 93 opened on the driving block 23, and the inner sides of the two buffer cavities 93 are slidably connected with a buffer T-shaped rod 92. The end of the buffer T-shaped rod 92 away from the buffer cavity 93 is fixedly connected to the U-shaped frame 31, and a buffer spring 91 is fixedly connected between the buffer T-shaped rod 92 and the bottom wall of the buffer cavity 93.

[0049] Specifically, when the core sample is split into two halves, the two halves of the core sample will open to both sides, driving the clamping plate 32 to move away from one side of the core sample, driving the U-shaped frame 31 to move away from one side of the core sample, driving the buffer T-shaped rod 92 to slide into the buffer cavity 93, squeezing the buffer spring 91, and under the action of the buffer spring 91, the buffer T-shaped rod 92 is buffered, the U-shaped frame 31 is buffered, and then the clamping plate 32 is buffered, so that when the core sample is split, the clamping plate 32 has a certain buffer space, so that the split core sample will not open the device and cause damage to the device. The rest of the structure is the same as that of Example 2.

[0050] Based on Examples 1-3, the working principle of the present invention is as follows: when in use, the core sample is placed in the splitting machine body 1, and the splitting blade 11 slides in the splitting machine body 1 to split the core sample, and the rocker 21 is shaken to drive the bidirectional threaded rod 22 to rotate, so that the two nuts 24 slide toward or away from each other on the bidirectional threaded rod 22, and the driving block 23 is driven to slide on the bidirectional threaded rod 22 through the driving rod 25, driving the U-shaped frame 31 to move, driving the first connecting shaft 35 and the second connecting shaft 36 and the connecting bar 33 to move, and then driving the clamping plate 32 to move, so as to clamp the core sample, thereby reducing the probability of the core sample breaking apart during splitting.

[0051] By rotating the rotating assembly 5, the clamping assembly 3 is adjusted so that the clamping assembly 3 can adapt to the clamping of core samples of different sizes. By pulling the knob 51, the rotating T-bar 54 is driven to move, and the compression spring 56 is stretched, driving the insertion rod 52 to move, so that the insertion rod 52 is separated from the inner side of the slot 53. The knob 51 is turned to drive the rotating T-bar 54 to rotate, and the first connecting shaft 35 is driven to rotate. When the first connecting shaft 35 rotates, the fixing rod 73 and the second outer gear 76 are driven to rotate. The second outer gear 76 and the first outer gear 75 are meshed with each other, thereby driving the first outer gear 75 to rotate in the opposite direction on the fixing block 74. The first outer gear 75 and the internal gear 72 are meshed with each other, thereby driving the internal gear 72 to rotate and the rotation direction is opposite to the rotation direction of the second outer gear 76, driving the second connecting shaft 36 to rotate, so that the second The connecting shaft 36 rotates in the opposite direction to the first connecting shaft 35, thereby driving the two connecting strips 33 to rotate in the opposite direction, driving the two clamping plates 32 to rotate in the opposite direction, thereby adjusting the angle between the two clamping plates 32, and clamping core samples of different sizes. The knob 51 is released, and the compression spring 56 is reset, driving the rotating T-bar 54 to move inwardly of the movable cavity 57, and driving the knob 51 to move toward the side of the slider 55, so that the insertion rod 52 is plugged into the inner side of the slot 53, limiting the knob 51, limiting the rotating T-bar 54, and limiting the first connecting shaft 35, so that the first connecting shaft 35 and the second connecting shaft 36 no longer rotate, and completing the adjustment of the angle between the two clamping plates 32, thereby improving the practicability of the device and making the device more flexible to use.

[0052] When the clamping assembly 3 clamps the core sample, the two clamping plates 32 clamp the core sample tightly under the action of the inclined surface 34. When the clamping plate 32 continues to move toward the side of the core sample, when the core sample is small, the clamping plate 32 on the bottom side will move downward under the action of the core sample, driving the first connecting shaft 35 and the second connecting shaft 36 to move downward, driving the slider 55 to slide downward inside the slide groove 82, squeezing the reset spring 85, so that the sliding block 83 slides downward inside the slide groove 84, so that the slider 55 will not be separated from the slide groove 82 when sliding inside the slide groove 82. At this time, the clamping plate 32 on the upper side will move toward the core sample. One side approaches until the midline of the angle between the two clamping plates 32 coincides with the midline of the core sample, and then the core sample is clamped under the joint action of the two clamping plates 32. When the core sample is large, the upper clamping plate 32 will move upward under the action of the core sample, driving the first connecting shaft 35 and the second connecting shaft 36 to move upward, so that the slider 55 slides upward in the slide groove 82, and the return spring 85 is stretched until the clamping plate 32 on the bottom side contacts the core sample, thereby clamping the core sample. When the core sample is split, the possibility of the core sample collapsing is reduced, thereby achieving the clamping of core samples of different sizes.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A geological exploration drilling core splitting device, comprising a splitting machine body (1), and a splitting blade (11) limitedly slidably arranged in the splitting machine body (1), characterized in that: It also includes a clamping unit arranged on the splitting machine body (1); The clamping unit comprises a clamping component arranged on a splitting machine body (1) and an adjusting component arranged on the clamping component, and the clamping component comprises a driving component (2) arranged on the splitting machine body (1) and a clamping component (3) arranged on the driving component (2); The driving assembly (2) comprises a bidirectional threaded rod (22) rotatably connected to the bottom of the splitting machine body (1); two symmetrically distributed nuts (24) are threadedly connected to the bidirectional threaded rod (22); driving blocks (23) are slidably connected to the bidirectional threaded rod (22) at opposite sides of the two nuts (24); the driving blocks (23) and the nuts (24) are fixedly connected via a driving rod (25); and a rocker (21) is fixedly connected to one end of the bidirectional threaded rod (22).

2. The geological exploration drilling core splitting equipment according to claim 1, characterized in that: The clamping assembly (3) comprises a U-shaped frame (31) fixedly mounted on the driving block (23); one end of the U-shaped frame (31) is rotatably connected to a first connecting shaft (35); the other end of the U-shaped frame (31) is rotatably connected to a second connecting shaft (36); the first connecting shaft (35) and the second connecting shaft (36) are rotatably connected to each other; connecting strips (33) are fixedly connected to the shaft walls of the first connecting shaft (35) and the second connecting shaft (36); a clamping plate (32) is fixedly connected to the connecting strip (33); and an inclined surface (34) is provided on the clamping plate (32).

3. The geological exploration drilling core splitting equipment according to claim 2, characterized in that: The clamping component further comprises a first limiting component (4) arranged between the splitting machine body (1) and the clamping component (3); The first limiting assembly (4) comprises two symmetrically distributed first limiting rods (42) fixedly connected to the U-shaped frame (31); a first limiting groove (41) is provided on the splitting machine body (1) at a position corresponding to the first limiting rods (42); and the first limiting rods (42) are slidably connected to the inner side of the first limiting groove (41).

4. The geological exploration drilling core splitting equipment according to claim 2, characterized in that: The adjusting component comprises a rotating assembly (5) arranged on the U-shaped frame (31), a second limiting assembly (6) arranged in the rotating assembly (5), a torsion assembly (7) arranged between the first connecting shaft (35) and the second connecting shaft (36), a sliding assembly (8) arranged on the U-shaped frame (31), and a buffer assembly (9) arranged on the driving block (23); The rotating assembly (5) comprises two symmetrically distributed sliders (55) which are limitedly slidably connected to the U-shaped frame (31); the separated ends of the first connecting shaft (35) and the second connecting shaft (36) are respectively rotatably connected to the two sliders (55); an end of the first connecting shaft (35) away from the second connecting shaft (36) is provided with an active cavity (57); a rotating T-shaped rod (54) is limitedly slidably connected inside the active cavity (57); a compression spring (56) is fixedly connected between the rotating T-shaped rod (54) and the bottom wall of the active cavity (57); an end of the rotating T-shaped rod (54) away from the compression spring (56) passes through the slider (55) and is fixedly connected to a rotating knob (51); two symmetrically distributed insertion rods (52) are fixedly connected to the rotating knob (51); a plurality of evenly distributed slots (53) are provided on the slider (55); the insertion rods (52) are plugged into the inner sides of the slots (53).

5. The geological exploration drilling core splitting equipment according to claim 4, characterized in that: The second limiting assembly (6) comprises two symmetrically distributed second limiting grooves (61) opened in the movable cavity (57), the two second limiting grooves (61) are both slidably connected with limiting blocks (62), and the two limiting blocks (62) are both fixedly connected to the rotating T-shaped rod (54).

6. The geological exploration drilling core splitting equipment according to claim 4, characterized in that: The torsion assembly (7) comprises a sleeve (71) rotatably connected between a first connecting shaft (35) and a second connecting shaft (36); one end of the first connecting shaft (35) located inside the sleeve (71) is fixedly connected to a fixing rod (73); one end of the fixing rod (73) away from the first connecting shaft (35) is fixedly sleeved with a second external gear (76); a fixing block (74) is fixedly connected to the inner wall of the sleeve (71); the fixing block (74) is rotatably connected to the first external gear (75); the first external gear (75) and the second external gear (76) are meshed with each other; and one end of the second connecting shaft (36) located inside the sleeve (71) is fixedly connected to an internal gear (72); the first external gear (75) and the internal gear (72) are meshed with each other.

7. The geological exploration drilling core splitting equipment according to claim 4, characterized in that: The sliding assembly (8) comprises two symmetrically distributed sliding grooves (82) opened on the U-shaped frame (31), two sliding blocks (55) are respectively slidably connected to the inner sides of the two sliding grooves (82), a return spring (85) is fixedly connected between the sliding block (55) and the inner wall of the sliding groove (82), a vertical rod (81) is also fixedly connected to the U-shaped frame (31), a sliding groove (84) is opened on the top of the vertical rod (81), a sliding block (83) is slidably connected to the inner side of the sliding groove (84), and the sliding block (83) is fixedly connected to the sleeve (71).

8. The geological exploration drilling core splitting equipment according to claim 4, characterized in that: The buffer assembly (9) comprises two symmetrically distributed buffer cavities (93) opened on the driving block (23), the inner sides of the two buffer cavities (93) are slidably connected with a buffer T-shaped rod (92), one end of the buffer T-shaped rod (92) away from the buffer cavity (93) is fixedly connected to the U-shaped frame (31), and a buffer spring (91) is fixedly connected between the buffer T-shaped rod (92) and the bottom wall of the buffer cavity (93).

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