A clamping device for rock CT inspection

Abstract

This utility model relates to the field of clamping equipment technology, specifically to a clamping device for rock CT detection. It includes a support platform and two sets of clamping mechanisms symmetrically arranged on the support platform. One clamping mechanism is slidably disposed on the top of the support platform, and a driving mechanism drives this clamping mechanism to slide. The other clamping mechanism is fixedly disposed on the top of the support platform. Each clamping mechanism includes a clamping plate, a connecting rod telescopically disposed on the clamping plate, a connecting plate disposed at one end of the connecting rod and the clamping plate, two connecting plates respectively perpendicular to the clamping plate and the connecting rod, multiple lead screws threadedly connected to the connecting plates, a clamping member hinged to one end of the lead screws, and a handle disposed at the other end of the lead screws. This utility model can clamp the rock from the length direction using the clamping plate and from the width direction using the clamping member, thus improving the clamping effect.

Description

Technical Field

[0001] This utility model relates to the field of clamping equipment technology, and in particular to a clamping device for rock CT detection. Background Technology

[0002] Rocks, as a crucial component of the Earth's interior, hold critical research value in numerous fields such as geological exploration, energy development, and civil engineering. Precise observation and analysis of the internal structure of rocks are fundamental to a deep understanding of their physical and mechanical properties, revealing geological processes, and ensuring the safety and stability of engineering projects. Computed tomography (CT) technology, with its significant advantages of non-destructive operation, high resolution, and three-dimensional imaging, has become an important tool for studying the microstructure of rocks. CT scans can clearly reveal the microscopic features of rocks, such as pores, fractures, and mineral grain distribution, providing detailed and reliable data support for the study of rock mechanical properties, oil and gas reservoir evaluation, and geological hazard prediction. However, the clamping and fixation of rock samples during rock CT testing remains a critical issue that urgently needs to be addressed.

[0003] Patent application number 202123441416.1 discloses a clamping device for rock CT detection, including a clamping plate, a bracket, and a U-shaped rotating plate. The U-shaped rotating plate includes a base plate and side plates fixed at both ends of the base plate. A guide rod is fixed to the end of the clamping plate away from the rock sample. One side plate has a guide hole corresponding to the guide rod, and the other side plate has a rotating rod. The guide rod is installed inside the guide hole, and a compression spring is provided outside the guide rod. The compression spring is located between the side plate and the clamping plate. The U-shaped rotating plate is rotatably connected to the bracket. The advantages of this invention are: the clamping plate can fix the rock sample, and rotating the U-shaped rotating plate can adjust the detection angle. The above-mentioned device only uses two clamping plates for clamping, resulting in poor clamping effect. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to propose a clamping device for rock CT detection, so as to solve the problem that the existing clamping devices only use two clamping plates for clamping and the clamping effect is not good.

[0005] To achieve the above objectives, this utility model provides a clamping device for rock CT detection, including a support platform and two sets of clamping mechanisms symmetrically arranged on the support platform. One clamping mechanism is slidably disposed on the top of the support platform, and a driving mechanism drives the clamping mechanism to slide. The other clamping mechanism is fixedly disposed on the top of the support platform. The clamping mechanism includes a clamping plate, a connecting rod telescopically mounted on the clamping plate, a connecting plate mounted at one end of the connecting rod and the clamping plate, two connecting plates respectively perpendicular to the clamping plate and the connecting rod, multiple lead screws threadedly connected to the connecting plate, a clamping member hinged at one end of the lead screw, and a handle mounted at the other end of the lead screw.

[0006] Optionally, the drive mechanism includes a rotating shaft rotatably disposed on one side of the sliding clamp, a first support member threadedly connected to the rotating shaft, a second support member slidably connected to the rotating shaft, both the first and second support members being fixedly disposed on the top of the support platform, a sliding plate rotatably connected to the rotating shaft, the sliding plate being slidably connected to a groove in the support platform, a first motor disposed on the sliding plate, a first gear being drivenly connected to the first motor, and a second gear being meshed with the first gear and fixedly sleeved on the rotating shaft.

[0007] When the drive mechanism is working, the first motor starts, driving the first gear to rotate. Since the first gear meshes with the second gear fixedly sleeved on the rotating shaft, it drives the rotating shaft to rotate. The rotating shaft is threadedly connected to the first support member and slidably connected to the second support member. The rotation of the rotating shaft causes it to move axially under the constraint of the first and second support members, which in turn causes the slide plate rotatably connected to the rotating shaft to slide in the groove of the support platform. The rotating shaft then drives the slidable clamping mechanism connected to it to move, realizing the adjustment of the distance between the two sets of clamping mechanisms. By using motor drive and gear transmission, the movement distance of the slidable clamping mechanism can be precisely controlled, thereby accurately adjusting the distance between the two sets of clamping mechanisms to meet the clamping requirements of rock samples of different lengths. It also has a high degree of automation and is labor-saving to operate.

[0008] Optionally, the top of the clamping plate is provided with a docking part, a rack detachably connected to the docking part, a rotating part capable of meshing with the rack, the rotating part being threadedly connected to a fixing frame, and a pressure plate being provided at the bottom of the rotating part. Both the pressure plate and the clamping plate are provided with elastic pads.

[0009] When it is necessary to apply pressure to a rock sample in both length and width directions simultaneously, the rack is detachably connected to the mating part at the top of the clamping plate. At this time, the pressure plate is initially pressed against the rock. When the drive mechanism continues to apply pressure, the rack moves with the clamping plate, which in turn drives the rotating part to rotate. The rotation of the rotating part causes it to move in the vertical direction. The bottom of the rotating part is equipped with a pressure plate. When the rotating part moves downward, the pressure plate further presses the rock sample, thus achieving simultaneous pressure on the rock sample in both length and width directions for observation of CT images under this condition.

[0010] Optionally, the top of the docking member is provided with a through groove, and the bottom of the rack is provided with a slider that cooperates with the groove, so that a detachable connection can be achieved through the cooperation of the groove and the slider.

[0011] Optionally, a through groove is provided on the support platform between the two sets of clamping mechanisms.

[0012] Optionally, brackets are rotatably mounted on both sides of the support platform, and a speed reducer is driven to one side of the support platform, with the speed reducer being driven to a second motor.

[0013] Optionally, the connecting rod can be telescopically mounted on the clamping plate via a threaded connection.

[0014] Optionally, the rotating shaft is provided with an annular groove, and the sliding plate is rotatably connected within the annular groove.

[0015] During operation, the rock is placed between two sets of clamping mechanisms. The distance between the two sets of clamping mechanisms can be adjusted by moving one set of clamping mechanisms through the drive mechanism, thus accommodating rocks of different lengths. The distance between the two connecting plates can be adjusted by the telescopic connecting rod, thus accommodating rocks of different widths. By turning the handle, the lead screw moves toward the rock, causing the clamping member to press the rock against the rock in the width direction. Therefore, this utility model can improve the clamping effect by using clamping plates to press against the rock in the length direction and clamping members to press against the rock in the width direction. At the same time, it can adapt to the clamping requirements of rocks of different lengths and widths. In addition, the drive unit further drives the clamping plates to move while clamping, allowing observation of CT images when pressure is applied in the length direction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the support platform according to an embodiment of the present invention; Figure 2 for Figure 1 Left view of the middle panel; Figure 3 for Figure 1 Front view of the middle panel.

[0018] The numbers on the map are: 1. Support platform; 2. Clamping plate; 3. Connecting rod; 4. Connecting plate; 5. Lead screw; 6. Clamping component; 7. Handle; 8. Rotating shaft; 9. First support component; 10. Second support component; 11. Slide plate; 12. First motor; 13. First gear; 14. Second gear; 15. Connecting component; 16. Rack; 17. Rotating component; 18. Fixing frame; 19. Pressure plate; 20. Elastic pad; 21. Through groove; 22. Bracket. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1-2 As shown, a clamping device for rock CT detection includes a support platform 1, and further includes two sets of clamping mechanisms symmetrically arranged on the support platform 1. One clamping mechanism is slidably disposed on the top of the support platform 1, and a driving mechanism drives the clamping mechanism to slide. The other clamping mechanism is fixedly disposed on the top of the support platform 1. The clamping mechanism includes a clamping plate 2, a connecting rod 3 telescopically mounted on the clamping plate 2, a connecting plate 4 mounted on one end of the connecting rod 3 and the clamping plate 2, two connecting plates 4 respectively perpendicular to the clamping plate 2 and the connecting rod 3, multiple lead screws 5 threadedly connected to the connecting plate 4, a clamping member 6 hinged to one end of the lead screw 5, and a handle 7 mounted on the other end of the lead screw 5.

[0022] During operation, the rock is placed between two sets of clamping mechanisms. The distance between the two sets of clamping mechanisms can be adjusted by moving one set of clamping mechanisms through the drive mechanism, thus accommodating rocks of different lengths. The distance between the two connecting plates 4 can be adjusted by the telescopic connecting rod 3, thus accommodating rocks of different widths. By rotating the handle 7, the lead screw 5 is moved toward the rock, so that the clamping member 6 presses the rock against the rock in the width direction. Therefore, this utility model can press the rock against the rock in the length direction through the clamping plate 2 and against the rock in the width direction through the clamping member 6, thus improving the clamping effect and accommodating the clamping requirements of rocks of different lengths and widths. At the same time, the drive unit further drives the clamping plate 2 to move while clamping, allowing observation of CT images when pressure is applied in the length direction.

[0023] like Figure 1 As shown in some embodiments, the driving mechanism includes a rotating shaft 8 rotatably disposed on one side of the sliding clamp 2, a first support member 9 threadedly connected to the rotating shaft 8, a second support member 10 slidably connected to the rotating shaft 8, both the first support member 9 and the second support member 10 being fixedly disposed on the top of the support platform 1, and a sliding plate 11 rotatably connected to the rotating shaft 8. Optionally, the rotating shaft 8 is provided with an annular groove, the sliding plate 11 is rotatably connected in the annular groove, the sliding plate 11 is slidably connected in the groove of the support platform 1, a first motor 12 disposed on the sliding plate 11, a first gear 13 being drivenly connected to the first motor 12, and a second gear 14 meshing with and fixedly sleeved on the rotating shaft 8.

[0024] When the drive mechanism is working, the first motor 12 starts, driving the first gear 13 to rotate. Since the first gear 13 meshes with the second gear 14 fixedly sleeved on the rotating shaft 8, it drives the rotating shaft 8 to rotate. The rotating shaft 8 is threadedly connected to the first support member 9 and slidably connected to the second support member 10. The rotation of the rotating shaft 8 will cause the rotating shaft 8 to move axially under the constraint of the first support member 9 and the second support member 10, thereby driving the slide plate 11 rotatably connected to the rotating shaft 8 to slide in the groove of the support platform 1. The rotating shaft 8 then drives the slidable clamping mechanism connected to it to move, realizing the adjustment of the distance between the two sets of clamping mechanisms. By using motor drive and gear transmission, the movement distance of the slidable clamping mechanism can be precisely controlled, thereby accurately adjusting the distance between the two sets of clamping mechanisms to meet the clamping requirements of rock samples of different lengths. It also has a high degree of automation and is labor-saving to operate.

[0025] like Figure 3As shown in some embodiments, the top of the clamping plate 2 is provided with a docking part 15, a rack 16 detachably connected to the docking part 15, a rotating part 17 capable of meshing with the rack 16, the rotating part 17 is threadedly connected to a fixing frame 18, the bottom of the rotating part 17 is provided with a pressure plate 19, and both the pressure plate 19 and the clamping plate 2 are provided with elastic pads 20.

[0026] When it is necessary to apply pressure to the rock sample in both length and width directions simultaneously, the rack 16 is installed on the docking part 15 at the top of the clamping plate 2 via a detachable connection. At this time, the pressure plate 19 is initially pressed against the rock. When the drive mechanism continues to apply pressure, the rack 16 moves as the clamping plate 2 moves, which in turn drives the rotating part 17 to rotate. The rotation of the rotating part 17 causes it to move in the vertical direction. The bottom of the rotating part 17 is equipped with a pressure plate 19. When the rotating part 17 moves downward, the pressure plate 19 will further press the rock sample, thus achieving simultaneous pressure on the rock sample in both length and width directions, so as to observe the CT image under this condition.

[0027] like Figure 3 As shown, in some embodiments, the top of the docking member 15 is provided with a through groove, and the bottom of the rack 16 is provided with a slider that mates with the groove, thereby achieving a detachable connection through the engagement of the groove and the slider. When it is not necessary to apply pressure to the rock sample in both the length and width directions simultaneously, the slider can be removed from the groove.

[0028] like Figure 1 As shown, in some embodiments, a through groove 21 is provided on the support platform 1 between the two sets of clamping mechanisms. This allows for both a lightweight support platform 1 and better CT scanning of the bottom surface of the rock when the support platform 1 rotates.

[0029] like Figure 1 As shown, in some embodiments, brackets 22 are rotatably provided on both sides of the support platform 1, and a speed reducer is driven to one side of the support platform 1, and the speed reducer is driven to a second motor.

[0030] When the angle of the support platform 1 needs to be adjusted, the second motor starts and transmits power to the support platform 1 through the reducer, causing the support platform 1 to rotate around the bracket 22, thereby changing the angle of the support platform 1. In this way, the angle of the support platform 1 can be flexibly adjusted according to the actual testing needs, so that the rock sample is in the optimal testing position, meeting the CT testing requirements of different angles, and improving the applicability of the equipment and the flexibility of testing.

[0031] In some embodiments, the connecting rod is retractably mounted on the clamping plate via a threaded connection.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamping device for rock CT detection, comprising a support platform (1), characterized in that, Also includes: Two sets of clamping mechanisms are symmetrically arranged on the support platform (1). One clamping mechanism is slidably disposed on the top of the support platform (1) and driven by a driving mechanism. The other clamping mechanism is fixedly disposed on the top of the support platform (1). The clamping mechanism includes a clamping plate (2), a telescopically mounted connecting rod (3) on the clamping plate (2), a connecting plate (4) at one end of the connecting rod (3) and the clamping plate (2), two connecting plates (4) respectively perpendicular to the clamping plate (2) and the connecting rod (3), a plurality of lead screws (5) threadedly connected to the connecting plate (4), a clamping member (6) hinged at one end of the lead screw (5), and a handle (7) at the other end of the lead screw (5).

2. The clamping device for rock CT detection according to claim 1, characterized in that, The driving mechanism includes a rotating shaft (8) rotatably disposed on one side of the sliding clamp (2), a first support member (9) threadedly connected to the rotating shaft (8), a second support member (10) slidably connected to the rotating shaft (8), the first support member (9) and the second support member (10) being fixedly disposed on the top of the support platform (1), a sliding plate (11) rotatably connected to the rotating shaft (8), the sliding plate (11) being slidably connected in a groove in the support platform (1), a first motor (12) disposed on the sliding plate (11), a first gear (13) being drivenly connected to the first motor (12), and a second gear (14) meshing with the first gear (13) and fixedly sleeved on the rotating shaft (8).

3. The clamping device for rock CT detection according to claim 1, characterized in that, The top of the clamping plate (2) is provided with a docking part (15), a rack (16) detachably connected to the docking part (15), a rotating part (17) capable of meshing with the rack (16), the rotating part (17) is threadedly connected to a fixing frame (18), the bottom of the rotating part (17) is provided with a pressure plate (19), and both the pressure plate (19) and the clamping plate (2) are provided with elastic pads (20).

4. The clamping device for rock CT detection according to claim 3, characterized in that, The top of the docking part (15) is provided with a through groove, and the bottom of the rack (16) is provided with a slider that cooperates with the groove. The detachable connection is achieved through the cooperation between the groove and the slider.

5. The clamping device for rock CT detection according to claim 1, characterized in that, The support platform (1) is provided with a through groove (21) located between the two sets of clamping mechanisms.

6. The clamping device for rock CT detection according to claim 1, characterized in that, The support platform (1) is rotatably equipped with brackets (22) on both sides, and a speed reducer is driven to one side of the support platform (1), and the speed reducer is driven to a second motor.

7. The clamping device for rock CT detection according to claim 1, characterized in that, The connecting rod (3) is retractably mounted on the clamping plate (2) via a threaded connection.

8. A clamping device for rock CT detection according to claim 2, characterized in that, The rotating shaft (8) is provided with an annular groove, and the sliding plate (11) is rotatably connected in the annular groove.

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