A sandbox physical simulation experiment device for simulating an arbitrary displacement vector

Abstract

This invention belongs to the field of structural geology research technology, specifically a sandbox physical simulation experimental device for simulating arbitrary displacement vectors. The top of the frame is equipped with a horizontal flat plate, and a rotating shaft is rotatably connected to the top right side of the frame via a bearing. The upper end of a variable-angle inclined plate is fixedly sleeved on the rotating shaft, and a positioning disk, fan-shaped, is also fixedly sleeved on the rotating shaft. By adjusting the angle between the horizontal sliding plate and the variable-angle inclined plate using the positioning disk, pre-existing faults at arbitrary angles can be simulated, thus avoiding the need to create and replace multiple pre-existing structural models. This saves costs and simplifies the experiment. During the experiment, the device simulates the movement of pre-existing structures with arbitrary displacement vectors, and the magnitude of the X and Y displacements can be adjusted at any time, thereby more accurately reproducing the tectonic evolution of the geological prototype during historical periods.

Description

Technical Field

[0001] This invention relates to the field of structural geology research technology, specifically to a sandbox physical simulation experimental device for simulating arbitrary displacement vectors. Background Technology

[0002] Oblique extensional / compressional deformation, where the extensional / compressional direction is oblique to the pre-existing structure, is a common phenomenon in the formation and evolution of multi-stage rift / foreland basins. Because the extensional / compressional direction is not orthogonal to the strike of the pre-existing structure, fault development varies greatly. Faults exhibit both dip-slip and strike-slip displacements. Dip-slip displacement causes deformation to control sedimentary characteristics, while strike-slip displacement causes deformation to exhibit a composite faulting pattern composed of en echelon fault systems. Different displacement vectors decompose into dip-slip and strike-slip components of varying magnitudes, resulting in extremely complex combinations of newly formed and reactivated faults. This leads to the formation of complex fault zones of different genetic types within different tectonic units of the same basin.

[0003] As a common technique for basin tectonic analysis, sandbox physical simulation technology is also widely used in the study of fault formation and evolution. Although sandbox physical simulation experiments have provided great guidance for simulating orthogonal extensional deformation processes, oblique extensional / compressional deformation is a complex deformation process, resulting from the combined effects of multiple parameters, including displacement vectors (including displacement magnitude and direction), boundary conditions, viscosity, and other key factors. Current experimental setups for studying the reactivation and evolution of pre-existing faults still have certain limitations. They cannot simulate the influence of arbitrary displacement vector changes on the reactivation deformation of pre-existing faults with arbitrary orientations. Therefore, it is currently impossible to systematically study the laws governing the reactivation deformation of pre-existing faults under oblique extensional / compressional forces. Summary of the Invention

[0004] The purpose of this invention is to provide a sandbox physical simulation experimental device for simulating arbitrary displacement vectors, so as to solve the problem mentioned in the background art that current physical simulation experiments cannot simulate the influence of changes in arbitrary displacement vectors on arbitrary orientation pre-existing fracture and subsequent active deformation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sand box physical simulation experimental device for simulating arbitrary displacement vectors, comprising:

[0006] The frame has a horizontal calm plate at its top and a rotating shaft rotatably connected to the top right side of the frame via a bearing.

[0007] A variable angle inclined plate, the upper end of which is fixedly sleeved on a rotating shaft, and a positioning disk is also fixedly sleeved on the rotating shaft. The positioning disk is configured as a fan shape, and the center of the circle in which the positioning disk is located intersects the axis of the rotating shaft. An arc-shaped angle scale is provided on the lower side of the outer wall of the positioning disk.

[0008] A locking mechanism is mounted on the frame and is connected to the lower side of the outer wall of the positioning disc;

[0009] A connecting plate is fixedly connected at its upper end to the lower left side wall of the variable angle inclined plate. The lower outer wall of the connecting plate is fixedly connected to the positioning disk. An X-axis servo drive mechanism is provided on the right side wall of the connecting plate. A movable base plate is connected to the X-axis servo drive mechanism. A Y-axis servo drive mechanism is connected to the movable base plate. A movable slide plate is installed on the right side of the Y-axis servo drive mechanism. A horizontal slide plate support plate is rotatably connected to the upper side of the movable slide plate via a support shaft. A horizontal slide plate is embedded in the upper surface of the horizontal slide plate support plate. A telescopic drive mechanism is connected between the lower right side of the horizontal slide plate support plate and the lower right side wall of the movable slide plate. The telescopic drive mechanism is rotatably connected to the horizontal slide plate support plate and the movable slide plate via a shaft.

[0010] Preferably, the frame includes side frames located on the front and rear sides, with rollers provided on both sides of the bottom of the side frames. The upper left sides of the two side frames are connected by a reinforcing rod, and a support frame is provided on the upper surface of the reinforcing rod. The horizontal calm plate is embedded in the support frame, and the right end of the horizontal calm plate extends to the right side of the support frame.

[0011] Preferably, the frame is provided with a mounting plate, and the locking mechanism is mounted on the mounting plate.

[0012] Preferably, the locking mechanism includes a positioning pin inserted into the mounting plate and positioning holes evenly spaced on the positioning plate, wherein the positioning pin and the positioning holes are in corresponding positions and are matched in size.

[0013] Preferably, the locking mechanism includes a drive motor mounted on a mounting plate, a drive screw connected to the output shaft of the drive motor, a support tube threaded onto the outer wall of the drive screw, a slide rod mounted parallel to the outer wall of the support tube, a support rod fixedly mounted on the outer wall of the drive motor, and a sliding block connected to the end of the support rod away from the drive motor, the sliding block being slidably engaged with the outer wall of the slide rod.

[0014] Preferably, a friction block is provided at the end of the supporting top tube away from the drive screw, and a friction strip corresponding to the position of the friction block is provided on the outer wall of the positioning disk.

[0015] Preferably, the movable substrate is provided with a support slide bar on one side wall facing the connecting plate, and the support slide bar is slidably supported on the outer wall of the connecting plate.

[0016] Preferably, the lower surface of the horizontal sliding plate support is provided with a reinforcing connecting plate, which is fixedly connected to the horizontal sliding plate by screws.

[0017] Preferably, the X-axis servo drive mechanism and the Y-axis servo drive mechanism have the same structure. Both the X-axis servo drive mechanism and the Y-axis servo drive mechanism include a drive screw. A slide saddle is sleeved on the outer wall of the drive screw. The slide saddle is threadedly engaged with the drive screw. One end of the drive screw is connected to the output end of the reduction drive motor.

[0018] Preferably, the length and width of the horizontal calm plate are 110cm and 30cm, the length and width of the horizontal sliding plate are 90cm and 30cm, the length and width of the variable angle ramp are 110cm and 30cm, and the length and width of the moving sliding plate are 90cm and 90cm.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This experimental setup is easy to operate and simple to use. By adjusting the angle between the horizontal sliding plate and the variable-angle inclined plate using the positioning plate, it is possible to simulate a pre-existing fault at any angle, thus avoiding the need to create and replace multiple pre-existing structural models. This saves costs and makes the experiment simpler and easier to operate.

[0021] Because an X-axis servo drive mechanism is set under the moving base plate, it enables the pre-existing structure to slide in the X direction. A parallel Y-axis servo drive mechanism is set under the moving slide plate, which makes the sliding of the moving slide plate more stable and enables the pre-existing structure to slide in the Y direction. Under the control of the computer, it is possible to simulate the movement of the pre-existing structure by arbitrary displacement vector during the experiment. Furthermore, the magnitude of the X and Y displacements can be adjusted at any time during the experiment, so as to more accurately reproduce the tectonic evolution process of the geological prototype in historical periods. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A structural diagram showing the removal of the sliding plate, horizontal sliding plate support plate, horizontal sliding plate, reinforcing connecting plate, and telescopic drive mechanism;

[0024] Figure 3 This is a schematic diagram of the X-axis servo drive mechanism of the present invention;

[0025] Figure 4 This is a structural schematic diagram of the horizontal calming plate, rotating shaft, positioning disk, arc angle scale, and mounting plate of the present invention;

[0026] Figure 5 This is a schematic diagram of the side frame, reinforcing rod, rollers, and support frame of the present invention;

[0027] Figure 6 This is a schematic diagram of the side frame and reinforcing connecting rod of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the drive screw, support tube, friction block, slide rod, support rod, and sliding block of the present invention.

[0029] In the diagram: 1. Side frame; 2. Reinforcing connecting rod; 3. Roller; 4. Support frame; 5. Horizontal still plate; 6. Rotating shaft; 7. Positioning plate; 8. Arc-shaped angle scale; 9. Mounting plate; 10. Drive motor; 11. Drive screw; 12. Support top tube; 13. Friction block; 14. Slide rod; 15. Support rod; 16. Sliding block; 17. Variable angle inclined plate; 18. Connecting plate; 19. Moving base plate; 20. X-axis servo drive mechanism; 201. Drive screw; 202. Slide saddle; 203. Gear reducer drive motor; 21. Support slide bar; 22. Y-axis servo drive mechanism; 23. Moving slide plate; 24. Horizontal slide plate support plate; 25. Horizontal slide plate; 26. Reinforcing connecting plate; 27. Telescopic drive mechanism. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0032] Example 1:

[0033] Please see Figure 1-7 The present invention provides a technical solution: a sand box physical simulation experimental device for simulating arbitrary displacement vectors, comprising: a frame, a variable angle inclined plate 17, a locking mechanism, and a connecting plate 18;

[0034] A horizontal leveling plate 5 is provided at the top of the frame. A rotating shaft 6 is rotatably connected to the right side of the top of the frame via a bearing. The upper end of the variable angle inclined plate 17 is fixedly sleeved on the rotating shaft 6. A positioning disk 7 is also fixedly sleeved on the rotating shaft 6. The positioning disk 7 is fan-shaped, and the center of the circle containing the positioning disk 7 intersects the axis of the rotating shaft 6. An arc-shaped angle scale 8 is provided on the lower side of the outer wall of the positioning disk 7. The locking mechanism is provided on the frame and is connected to the lower side of the outer wall of the positioning disk 7. The upper end of the connecting plate 18 is fixedly connected to the lower left side wall of the variable angle inclined plate 17, and the lower side of the outer wall of the connecting plate 18 is fixedly connected to the positioning disk 7. An X-axis servo drive mechanism 20 is provided on the right side wall of component 8. A movable base plate 19 is connected to the X-axis servo drive mechanism 20, and a Y-axis servo drive mechanism 22 is connected to the movable base plate 19. A movable slide plate 23 is installed on the right side of the Y-axis servo drive mechanism 22. A horizontal slide plate support plate 24 is rotatably connected to the upper side of the movable slide plate 23 via a support shaft. A horizontal slide plate 25 is embedded in the upper surface of the horizontal slide plate support plate 24. A telescopic drive mechanism 27 is connected between the lower right side of the horizontal slide plate support plate 24 and the lower right side wall of the movable slide plate 23. The telescopic drive mechanism 27 is rotatably connected to the horizontal slide plate support plate 24 and the movable slide plate 23 via a shaft. Two Y-axis servo drive mechanisms 22 are provided, and the two Y-axis servo drive mechanisms 22 are arranged in parallel side by side. The length and width of the horizontal calm plate 5 are 110cm and 30cm respectively, the length and width of the horizontal sliding plate 25 are 90cm and 30cm respectively, the length and width of the variable angle inclined plate 17 are 110cm and 30cm respectively, and the length and width of the moving sliding plate 23 are 90cm and 90cm respectively.

[0035] Analysis of the above: The connection between the horizontal flat plate 5 and the variable angle inclined plate 17 is smooth. During use, the left end of the horizontal sliding plate 25 is in contact with the right side wall of the variable angle inclined plate 17. The frame supports the upper overall structure, the horizontal flat plate 5 remains horizontal and fixed, and the variable angle inclined plate 17 can rotate around the pivot 6. The variable angle inclined plate 17 can drive the positioning plate 7 to rotate synchronously. The angle change of the variable angle inclined plate 17 can be obtained by the angle change of the arc-shaped angle scale 8 on the positioning plate 7. After adjustment, the positioning plate 7 is locked by the locking mechanism, thereby determining the inclination angle of the fracture surface of the pre-existing structure of the base. The horizontal flat plate 5, the horizontal sliding plate 25, the variable angle inclined plate 17, and the moving sliding plate 23 are all made of acrylic sheet material.

[0036] The telescopic drive mechanism 27 can be equipped with a linear motor, pneumatic cylinder, or hydraulic cylinder, and is equipped with corresponding power supply, air supply, or hydraulic oil and other supporting systems. The telescopic end of the telescopic drive mechanism 27 extends and retracts to adjust the horizontal slide support plate 24 and the horizontal slide plate 25, so that the horizontal slide support plate 24 and the horizontal slide plate 25 are adjusted to be horizontal.

[0037] Experimental material layers were laid on the horizontal still plate 5, the horizontal sliding plate 25, and the variable-angle inclined plate 17 for simulation experiments. The X-axis servo drive mechanism 20 could move the movable base plate 19, the movable sliding plate 23, and the horizontal sliding plate 25 in the X-axis direction, while the Y-axis servo drive mechanism 22 could move the movable sliding plate 23 and the horizontal sliding plate 25 in the Y-axis direction. The X-axis servo drive mechanism 20 and the Y-axis servo drive mechanism 22 were controlled by a host computer. The distance and speed of movement in the X and Y directions were controlled by the host computer, and the laid experimental material layers were observed after the experiment.

[0038] Example 2:

[0039] Please see Figure 1-7 The present invention provides a technical solution based on embodiment one: the frame includes side frames 1 located on the front and rear sides, and rollers 3 are provided on both sides of the bottom of the side frames 1. The upper left side of the two side frames 1 are connected by a reinforcing link 2. A support frame 4 is provided on the upper surface of the reinforcing link 2. The horizontal calm plate 5 is embedded in the support frame 4, and the right end of the horizontal calm plate 5 extends to the right side of the support frame 4.

[0040] Analysis of the above content: The setting of roller 3 facilitates the overall movement of the frame. The horizontal calm plate 5 and the support frame 4 are located on the left side of the reinforcing link 2, and extend to the right on the right side.

[0041] Example 3 (First locking mechanism):

[0042] Please see Figure 1-7 The present invention provides a technical solution based on Embodiment 1: a mounting plate 9 is provided on the frame, and a locking mechanism is provided on the mounting plate 9. The locking mechanism includes a positioning pin (not shown in the figure) inserted into the mounting plate 9 and positioning holes (not shown in the figure) evenly opened on the positioning plate 7, wherein the positioning pin and the positioning holes are corresponding in position and adapted in size.

[0043] Analysis of the above content: When it is necessary to adjust the angle, pull the positioning pin outward from the current positioning hole so that the positioning disk 7 can rotate. After rotating to a certain angle, insert the positioning pin into the corresponding positioning hole after rotation to lock the positioning disk 7.

[0044] Example 4 (Second Locking Mechanism):

[0045] Please see Figure 1-7This invention provides a technical solution based on Embodiment 1: A mounting plate 9 is provided on the frame, and a locking mechanism is mounted on the mounting plate 9. The locking mechanism includes a drive motor 10 mounted on the mounting plate 9, a drive screw 11 connected to the output shaft of the drive motor 10, a support tube 12 threadedly connected to the outer wall of the drive screw 11, a slide rod 14 parallelly mounted on the outer wall of the support tube 12, a support rod 15 fixedly mounted on the outer wall of the drive motor 10, and a sliding block 16 connected to the end of the support rod 15 away from the drive motor 10. The sliding block 16 slidably engages with the outer wall of the slide rod 14. A friction block 13 is provided at the end of the support tube 12 away from the drive screw 11, and a friction strip (not shown in the figure) corresponding to the position of the friction block 13 is provided on the outer wall of the positioning disk 7.

[0046] Analysis of the above content: When it is necessary to lock the positioning disk 7, the output shaft of the drive motor 10 drives the drive screw 11 to rotate. The drive screw 11 is threadedly engaged with the support jack 12 and is restricted by the slide rod 14, the support rod 15, and the sliding block 16. The support jack 12 moves axially on the drive screw 11 but cannot rotate, so that the support jack 12 drives the friction block 13 to move closer to the positioning disk 7. Under the action of contact friction, the positioning disk 7 cannot rotate on its own, thus achieving the locking effect of the positioning disk 7.

[0047] Example 5:

[0048] Please see Figure 1-7 The present invention provides a technical solution based on Embodiment 1: a support slide bar 21 is provided on one side wall of the movable substrate 19 facing the connecting plate 18, and the support slide bar 21 is slidably supported on the outer wall of the connecting plate 18.

[0049] Analysis of the above content: The support slider 21 is supported on the connecting plate 18 to prevent the moving base plate 19 from shaking under the drive of the X-axis servo drive mechanism 20.

[0050] Example 6:

[0051] Please see Figure 1-7 The present invention provides a technical solution based on Embodiment 1: a reinforcing connecting plate 26 is provided on the lower surface of the horizontal sliding plate support plate 24, and the reinforcing connecting plate 26 is fixedly connected to the horizontal sliding plate 25 by screws.

[0052] Analysis of the above content: Strengthening the setting of the connecting plate 26 strengthens the support of the horizontal slide plate support plate 24 and the horizontal slide plate 25, and prevents the horizontal slide plate support plate 24 and the horizontal slide plate 25 from deforming.

[0053] Example 7:

[0054] Please see Figure 1-7The present invention provides a technical solution based on Embodiment 1: the X-axis servo drive mechanism 20 and the Y-axis servo drive mechanism 22 have the same structure. Both the X-axis servo drive mechanism 20 and the Y-axis servo drive mechanism 22 include a drive screw 201. A slide saddle 202 is sleeved on the outer wall of the drive screw 201. The slide saddle 202 is threadedly engaged with the drive screw 201. One end of the drive screw 201 is connected to the output end of the reduction drive motor 203.

[0055] Analysis of the above content: The slide saddle 202 of the X-axis servo drive mechanism 20 is connected to the lower surface of the movable base plate 19, and the slide saddle 202 of the Y-axis servo drive mechanism 22 is connected to the lower surface of the movable slide plate 23. The drive screw 201 is rotated by the reduction drive motor 203. The drive screw 201 and the slide saddle 202 are threadedly engaged, so that the slide saddle 202 moves on the drive screw 201.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sandbox physical simulation experiment device for simulating an arbitrary displacement vector, characterized in that, include: The frame has a horizontal calm plate (5) at its top and a rotating shaft (6) rotatably connected to the right side of the top of the frame via a bearing. A variable angle inclined plate (17) is fixedly sleeved on the upper end of the variable angle inclined plate (17) and a positioning plate (7) is also fixedly sleeved on the rotating shaft (6). The positioning plate (7) is set in a fan shape. The center of the circle where the positioning plate (7) is located intersects the axis of the rotating shaft (6). An arc-shaped angle scale (8) is provided on the lower side of the outer wall of the positioning plate (7). A locking mechanism is mounted on the frame and is connected to the lower side of the outer wall of the positioning disk (7); A connecting plate (18) is fixedly connected at its upper end to the lower left side wall of the variable angle inclined plate (17). The lower outer wall of the connecting plate (18) is fixedly connected to the positioning disk (7). An X-axis servo drive mechanism (20) is provided on the right side wall of the connecting plate (18). A movable base plate (19) is connected to the X-axis servo drive mechanism (20). A Y-axis servo drive mechanism (22) is connected to the movable base plate (19). A movable slide plate (23) is installed on the right side of the Y-axis servo drive mechanism (22). A horizontal slide plate support plate (24) is rotatably connected to the upper side of the movable slide plate (23) through a support shaft. A horizontal slide plate (25) is embedded in the upper surface of the horizontal slide plate support plate (24). A telescopic drive mechanism (27) is connected between the lower right side of the horizontal slide plate support plate (24) and the lower right side wall of the movable slide plate (23). The telescopic drive mechanism (27) is rotatably connected to the horizontal slide plate support plate (24) and the movable slide plate (23) by a shaft. The locking mechanism includes a drive motor (10) mounted on a mounting plate (9), a drive screw (11) connected to the output shaft of the drive motor (10), a support tube (12) threaded onto the outer wall of the drive screw (11), a slide rod (14) mounted parallel to the outer wall of the support tube (12), a support rod (15) fixedly mounted on the outer wall of the drive motor (10), and a sliding block (16) connected to the end of the support rod (15) away from the drive motor (10), the sliding block (16) slidingly engaging with the outer wall of the slide rod (14); A friction block (13) is provided at one end of the supporting top tube (12) away from the drive screw (11), and a friction strip corresponding to the position of the friction block (13) is provided on the outer wall of the positioning disk (7); The movable substrate (19) has a support slide (21) on one side wall facing the connecting plate (18), and the support slide (21) is slidably supported on the outer wall of the connecting plate (18). The lower surface of the horizontal sliding plate support plate (24) is provided with a reinforcing connecting plate (26), and the reinforcing connecting plate (26) is fixedly connected to the horizontal sliding plate (25) by screws; The X-axis servo drive mechanism (20) and the Y-axis servo drive mechanism (22) have the same structure. Both the X-axis servo drive mechanism (20) and the Y-axis servo drive mechanism (22) include a drive screw (201). A slide saddle (202) is sleeved on the outer wall of the drive screw (201). The slide saddle (202) is threadedly engaged with the drive screw (201). One end of the drive screw (201) is connected to the output end of the reduction drive motor (203). The length and width of the horizontal calm plate (5) are 110cm and 30cm respectively, the length and width of the horizontal sliding plate (25) are 90cm and 30cm respectively, the length and width of the variable angle inclined plate (17) are 110cm and 30cm respectively, and the length and width of the moving sliding plate (23) are 90cm and 90cm respectively.

2. The sand box physical simulation experiment device for simulating an arbitrary displacement vector according to claim 1, characterized in that: The frame includes side frames (1) located on the front and rear sides. Rollers (3) are provided on both sides of the bottom of the side frames (1). The upper left side of the two side frames (1) are connected by a reinforcing rod (2). A support frame (4) is provided on the upper surface of the reinforcing rod (2). The horizontal calm plate (5) is embedded in the support frame (4), and the right end of the horizontal calm plate (5) extends to the right side of the support frame (4).

3. The sandbox physical simulation experimental device for simulating arbitrary displacement vectors according to claim 1, characterized in that: The frame is provided with a mounting plate (9), and the locking mechanism is provided on the mounting plate (9).

4. The sand box physical simulation experiment device for simulating an arbitrary displacement vector according to claim 3, characterized in that: The locking mechanism includes a positioning pin inserted into the mounting plate (9) and positioning holes evenly opened on the positioning plate (7). The positioning pin and the positioning holes are in corresponding positions and are matched in size.

Images