Rotary continuous compression rock mechanics experiment device

Abstract

The invention discloses a rotary continuous compression rock mechanics experiment device, and relates to the technical field of rock compression experiments, the rotary continuous compression rock mechanics experiment device comprises a base, a driving table is fixed at the top end of the base, and the top end of the driving table is rotatably connected with a rotary table driven by a rotation adjusting mechanism to rotate; the top end of the driving table is rotatably connected with the rotary table driven by the rotary adjusting mechanism to rotate, and the top end of the rotary table is provided with the sample placing grooves which are symmetrically distributed in a cross shape and are used for placing the rock samples to be tested, so that the rock samples can be driven by the rotary adjusting mechanism to rotate to the lower part of the pressure block in turn for a compression experiment; the rotary continuous compression of the rock test is realized, unnecessary waiting time is reduced, the efficiency of the compressed rock mechanics experiment is improved, and after the rock sample is compressed and crushed, the automatic material pushing mechanism drives the material pushing plate to move towards the direction of the material outlet, so that the material pushing efficiency is improved. And the crushed rock in the sample placing groove is pushed to the outside of the rotary table and falls into the waste collecting box, so that automatic unloading is realized, and the use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of rock compression experiments, and in particular to a rotating continuous compression rock mechanics experimental device. Background Art

[0002] Rock physical and mechanical parameters refer to the parameters that describe the mechanical behavior and physical properties of rocks under external forces. These parameters are crucial for understanding and predicting the performance of rocks in various engineering activities. Compression rock mechanics experiments are experimental methods for studying the mechanical behavior and deformation characteristics of rocks under compressive loads. Compression rock mechanics experiments are widely used in tunnel and underground engineering construction, oil and gas resource development, earthquake and geological disaster research and other fields. By conducting these experiments on rocks through corresponding compression rock mechanics experimental equipment, it is possible to evaluate the stability of rocks, optimize engineering design, reduce construction risks, and predict and prevent geological disasters.

[0003] Most of the existing compression rock mechanics experimental devices have a single structure, which makes it inconvenient to continuously test multiple groups of rock samples, thereby reducing the efficiency of the compression rock mechanics experiment. In addition, the rock samples cannot be automatically unloaded after being fractured, which is inconvenient to use, further reducing the experimental efficiency. Therefore, the present invention proposes a rotating continuous compression rock mechanics experimental device to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a rotating continuous compression rock mechanics experimental device, which solves the problems that the existing compression rock mechanics experimental device is not convenient for continuous testing of multiple groups of rock samples, increases unnecessary experimental waiting time, and the rock samples need to be manually removed from the device after being fractured and crushed, and automatic unloading cannot be achieved.

[0005] In order to achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a rotating continuous compression rock mechanics experimental device, including a base, a driving platform is fixed on the top of the base, a turntable driven to rotate by a rotating adjustment mechanism is rotatably connected to the top of the driving platform, sample placement grooves symmetrically distributed in a cross shape are symmetrically opened on the top of the turntable, a load sensor is fixed to the bottom end of the inner side of the sample placement groove, a sample bearing plate is fixed to the top of the load sensor, a discharge port connected to the sample placement groove is opened on the side wall of the turntable, a curtain is equidistantly fixed to the top of the inner side of the discharge port, a pushing plate driven to move by an automatic pushing mechanism is provided on the side of the sample placement groove away from the curtain, an L-shaped bracket is fixed to the rear side of the top of the base, a pressure block is connected to the top of the L-shaped bracket through a hydraulic cylinder, and a touch display screen electrically connected to the load sensor and the hydraulic cylinder is fixed to the front of the driving platform.

[0006] A further improvement is that: grooves are symmetrically provided on the inner side wall of the sample placement groove, a first cylinder is fixed in the groove, and a first limit plate is fixed at the output end of the first cylinder.

[0007] A further improvement is that a support plate and a waste collection box are provided on both sides of the top of the base, a second cylinder adapted to the position of the curtain is fixed on the support plate, and a second limit plate is fixed on the output end of the second cylinder.

[0008] A further improvement is that the rotation adjustment mechanism includes a support shaft fixed to the bottom end of the turntable and a first motor fixed to the lower end of the driving platform, the output end shaft of the first motor passes through the inner side of the driving platform through a bearing and is fixed with a driving sprocket, the lower part of the support shaft passes through the inner side of the driving platform through a bearing and is fixed with a driven sprocket, and a chain is jointly sleeved on the driving sprocket and the driven sprocket.

[0009] A further improvement is that a support ring is fixed to the bottom end of the turntable, and support balls equidistantly distributed in a ring shape are fixed to the bottom end of the support ring, and the support balls are in contact with the upper surface of the driving platform.

[0010] A further improvement is that the automatic pushing mechanism includes a cavity opened inside the turntable and a screw rod rotatably connected to the inside of the cavity and driven to rotate by a second motor, a threaded plate is threadedly sleeved on the screw rod, a push rod is symmetrically fixed on one side of the threaded plate close to the pushing plate, and the end of the push rod away from the threaded plate slides through the sample placement groove and is fixedly connected to the pushing plate.

[0011] Further improvements are: a lifting plate is fixed to the output end of the hydraulic cylinder, the pressure block is detachably mounted on the bottom end of the lifting plate by an elastic clamping mechanism, a rubber protective cover adapted to the sample placement slot is fixed to the periphery of the bottom end of the lifting plate, and support columns are symmetrically fixed between the base and the driving platform.

[0012] A further improvement is that a limiting sleeve is symmetrically fixed on the top of the lifting plate, a limiting slide bar is slidably provided inside the limiting sleeve, and the top of the limiting slide bar is fixed to the top of the inner side of the L-shaped bracket.

[0013] A further improvement is that the elastic clamping mechanism includes an engaging groove symmetrically opened at the bottom end of the lifting plate and an engaging block symmetrically fixed to the top end of the pressure block, the bottom end of the lifting plate is symmetrically provided with a spring groove, the inner wall of the spring groove close to the engaging groove is connected to a toggle plate through a limit spring, the toggle plate is fixed with a clamping column sliding through the inside of the engaging groove on the side close to the engaging groove, and the engaging block is provided with a clamping hole adapted to the clamping column.

[0014] A further improvement is that: a laser transmitter is fixed at the top of the L-shaped bracket, a laser receiver corresponding to the position of the sample placement slot and adapted to the laser transmitter is symmetrically fixed at the top of the turntable, and the laser receiver is electrically connected to the hydraulic cylinder

[0015] The beneficial effects of the present invention are as follows: the present invention rotatably connects a turntable driven to rotate by a rotation adjustment mechanism at the top of a driving platform, and opens four groups of sample placement slots symmetrically distributed in a cross shape at the top of the turntable for placing rock samples to be tested, so that the rock samples can be driven by the rotation adjustment mechanism to rotate in turn to the bottom of the pressure block for compression testing, and while the rock test in one group of sample placement slots is being tested, the rock samples in the remaining sample placement slots can be loaded and unloaded, thereby realizing rotational continuous compression of the rock test, reducing unnecessary waiting time, and improving the efficiency of the compression rock mechanics test;

[0016] After the rock sample is compressed and crushed, the automatic pushing mechanism drives the pushing plate to move toward the discharge port until the rock fragments in the sample placement slot are pushed to the outside of the turntable and fall into the waste collection box, thereby realizing automatic unloading without manual operation to take out the material, saving time and effort, being easy to use, and further improving the experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view of the present invention;

[0018] Figure 2 is a front cross-sectional view of the present invention;

[0019] Figure 3 is a top sectional view of a turntable of the present invention;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the lifting plate and the rubber protective cover of the present invention;

[0021] Figure 5 is a cross-sectional view of the lifting plate and the pressure block of the present invention;

[0022] Figure 6 The present invention Figure 5 Enlarged view of point A in .

[0023] Among them: 1. Base; 2. Drive table; 3. Turntable; 4. Sample placement slot; 5. Load sensor; 6. Sample bearing plate; 7. Discharge port; 8. Curtain; 9. Push plate; 10. L-shaped bracket; 11. Hydraulic cylinder; 12. Pressure block; 13. Touch screen; 14. First cylinder; 15. First limit plate; 16. Support plate; 17. Waste collection box; 18. Second cylinder; 19. Second limit plate; 20. Support shaft; 21. First motor; 22. Driving sprocket ; 23. Driven sprocket; 24. Chain; 25. Support ring; 26. Support ball; 27. Cavity; 28. Second motor; 29. ​​Screw; 30. Threaded plate; 31. Push rod; 32. Lifting plate; 33. Rubber protective cover; 34. Limit sleeve; 35. Limit slide rod; 36. Fitting groove; 37. Fitting block; 38. Spring groove; 39. Limit spring; 40. Toggle plate; 41. Snap-in column; 42. Snap-in hole; 43. Laser transmitter; 44. Laser receiver. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Rock physical and mechanical parameters can be measured by different experimental methods, such as direct tensile test, uniaxial compression test, rotating continuous compression rock mechanics test, etc. In practical applications, the determination of rock physical and mechanical parameters is of great significance for engineering design, construction safety and resource development. For example, in tunnel and underground engineering construction, these parameters can help engineers evaluate rock stability and select appropriate support measures; in oil and gas resource development, they are crucial for predicting reservoir characteristics and optimizing mining plans. With the development of science and technology, the determination and application of rock physical and mechanical parameters are also constantly improving;

[0026] Compression rock mechanics experiments usually include uniaxial compression tests and triaxial compression tests. Each test has its specific purpose and application scenario. The uniaxial compression test is a basic rock mechanics experiment. It places a cylindrical rock sample on the pressure plate of a press and applies uniaxial pressure to the sample without lateral conditions until it is destroyed. The main purpose of the test is to determine the uniaxial compressive strength of the rock, that is, the peak load that the sample can withstand per unit cross-sectional area. The triaxial compression test is a more complex rock mechanics experiment that can simulate the deformation and failure process of rock under complex stress states.

[0027] Based on the findings in the prior art, most of the existing compression rock mechanics experimental devices have a single structure. During the experiment, it is necessary to wait for the previous group of rock samples to be tested and removed before installing a new rock sample to be tested to continue testing, which makes it inconvenient to continuously test multiple groups of rock samples, increases unnecessary experimental waiting time, and thus reduces the efficiency of the compression rock mechanics experiment. In addition, after the rock samples are fractured and crushed, they need to be manually removed from the device, and automatic unloading cannot be achieved, resulting in a time-consuming and labor-intensive experimental process.

[0028] For the problems existing in the prior art, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The present embodiment provides a rotating continuous compression rock mechanics experimental device, comprising a horizontally arranged base 1 and a driving platform 2 fixed to the top of the base 1 and having a hollow design, a turntable 3 is rotatably connected to the top of the driving platform 2, and the turntable 3 is driven and rotated by a rotation adjustment mechanism in the driving platform 2, a sample placement groove 4 for placing a rock sample to be tested is provided at the top of the turntable 3, and the sample placement groove 4 is provided with four groups and is symmetrically distributed in a cross shape, a groove is provided at the bottom end of the inner side of the sample placement groove 4, and a load sensor 5 for monitoring the pressure of the rock sample is fixed in the groove by bolts, and a sample bearing plate 6 for placing the rock sample is fixed to the top of the load sensor 5 by bolts A discharge port 7 is provided on the side wall of the turntable 3. The discharge port 7 is also provided with four groups and is connected with the four groups of sample placement slots 4 in a one-to-one correspondence. Curtains 8 are fixed to the top of the inner side of the discharge port 7 and are evenly distributed. The curtains 8 play a protective and blocking role to prevent the rock sample from being crushed and splashing to the outside of the turntable 3. Four groups of automatic pushing mechanisms are symmetrically arranged inside the turntable 3. A pushing plate 9 is provided on the side of the sample placement slot 4 away from the curtain 8, and the pushing plate 9 is driven and displaced by the automatic pushing mechanism. The pushing plate 9 is driven by the automatic pushing mechanism to displace toward the discharge port 7 until the rock fragments in the sample placement slot 4 are pushed to the outside of the turntable 3 and fall into the waste collection box 17, thereby realizing automatic unloading;

[0029] An L-shaped bracket 10 of L-shaped design is fixed by bolts on the rear side of the top of the base 1, and a hydraulic cylinder 11 is fixed by bolts on the top of the L-shaped bracket 10. The output end of the hydraulic cylinder 11 is vertically downward and fixedly connected to a pressure block 12 for applying pressure to the rock sample. The turntable 3 driven to rotate by the rotary adjustment mechanism is connected by rotation at the top of the driving platform 2, and four groups of sample placement slots 4 symmetrically distributed in a cross shape are opened on the top of the turntable 3 for placing the rock samples to be tested, so that each rock sample can be driven by the rotary adjustment mechanism to rotate in turn to the bottom of the pressure block 12 for compression experiment. While the rock test in one group of sample placement slots 4 is being tested, the rock samples in the remaining sample placement slots 4 can be loaded and unloaded, thereby realizing the rotational continuous compression of the rock test. A touch screen 13 is fixed on the front of the driving platform 2, and the load sensor 5 is connected to the PLC control system of the device to send the monitored load data to the touch screen 13 for display. The hydraulic cylinder 11 is connected to the PLC control system of the device to send the relevant control parameters to the touch screen 13 for display.

[0030] The inner wall of the sample placement groove 4 is symmetrically provided with grooves, and a first cylinder 14 is fixed in the groove by bolts. The output end of the first cylinder 14 is located outside the groove and is fixed with a first limit plate 15 by bolts. A support plate 16 is fixed to the left side of the top of the base 1 by bolts. A waste collection box 17 for collecting rock sample fragments is placed on the right side of the top of the base 1. A second cylinder 18 is fixed on the support plate 16 by bolts. The height of the second cylinder 18 is adapted to the position of the curtain 8. The output end of the second cylinder 18 is fixed with a second limit plate 19 by bolts. The second limit plate 19 is positioned with the push plate 9. Correspondingly, the horizontal height of the first limit plate 15 is higher than that of the second limit plate 19, the two groups of first cylinders 14 are started to drive the two groups of first limit plates 15 to move toward each other, and the two groups of first limit plates 15 are used to push the rock sample to the middle position of the sample supporting plate 6, and the second cylinder 18 is started to drive the second limit plate 19 to extend into the sample placement slot 4 to push the rock sample to the left, and the automatic pushing mechanism is used to drive the pushing plate 9 to push the rock sample to the right, so that the rock sample can be limited to the center position of the sample supporting plate 6 by the limiting effect of the four sides, thereby realizing automatic adjustment of the rock sample position.

[0031] The rotation adjustment mechanism includes a support shaft 20 and a first motor 21, wherein the support shaft 20 is fixed to the center position of the bottom end of the turntable 3 by bolts, and the first motor 21 is fixed to the lower end of the driving platform 2 by bolts. The output end shaft of the first motor 21 passes through the bearing to the inner side of the driving platform 2 and is fixed with a driving sprocket 22. The lower part of the support shaft 20 passes through the bearing to the inner side of the driving platform 2 and is fixed with a driven sprocket 23 adapted to the driving sprocket 22. The driving sprocket 22 and the driven sprocket 23 are jointly sleeved with a chain 24. The driving sprocket 22 is driven to rotate by the first motor 21, and the driving sprocket 22 drives the driven sprocket 23 to rotate through the chain 24. The driven sprocket 23 then drives the turntable 3 to rotate through the support shaft 20.

[0032] A support ring 25 surrounding the support shaft 20 is fixed to the bottom end of the turntable 3 by bolts, and support balls 26 equidistantly distributed in a ring shape are fixed to the bottom end of the support ring 25. The support balls 26 are in contact with the upper surface of the driving platform 2, providing auxiliary support for the turntable 3.

[0033] The automatic pushing mechanism includes a cavity 27, a second motor 28 and a screw 29, wherein the cavity 27 is provided with four groups and symmetrically opened inside the turntable 3, the screw 29 is rotatably connected to the inside of the cavity 27 through a bearing and driven to rotate by the second motor 28, a threaded plate 30 is threadedly sleeved on the screw 29, and a side wall of the threaded plate 30 close to the pushing plate 9 is fixed with symmetrically distributed push rods 31 by bolts, and the end of the push rod 31 away from the threaded plate 30 slides through the sample placement groove 4 and is fixedly connected to the pushing plate 9 by bolts, and the second motor 28 is started to drive the screw 29 to rotate, so that the threaded plate 30 threadedly sleeved on the screw 29 drives the pushing plate 9 to move through the push rod 31, so as to push the crushed materials in the sample placement groove 4 out of the turntable 3.

[0034] The output end of the hydraulic cylinder 11 is fixed with a lifting plate 32 by bolts, and the pressure block 12 is detachably installed on the bottom end of the lifting plate 32 by an elastic clamping mechanism. A rubber protective cover 33 is fixed to the outer periphery of the bottom end of the lifting plate 32. The rubber protective cover 33 is adapted to the size of the sample placement slot 4. When pressure is applied to the rock sample, the rubber protective cover 33 seals the top of the sample placement slot 4 to prevent debris from splashing. Support columns are symmetrically fixed between the base 1 and the driving platform 2 to provide stable support for the driving platform 2. A limiting sleeve 34 is symmetrically fixed on the top of the lifting plate 32. A limiting slide rod 35 fixed to the inner top of the L-shaped bracket 10 is slidingly provided on the inner side of the limiting sleeve 34 to limit the lifting plate 32 and make the lifting plate 32 more stable during the lifting process.

[0035] The elastic clamping mechanism includes an engaging groove 36 and an engaging block 37, wherein the engaging groove 36 is provided with two groups and is symmetrically opened on the left and right sides of the bottom end of the lifting plate 32, the engaging block 37 is adapted to the engaging groove 36 and is symmetrically fixed to the left and right sides of the top of the pressure block 12 by bolts, when the pressure block 12 is fixed to the bottom end of the lifting plate 32, the engaging block 37 is engaged and inserted into the engaging groove 36, and the bottom end of the lifting plate 32 is provided with two groups of spring grooves 38 symmetrically distributed on the left and right sides, and the inner wall of the spring groove 38 close to one side of the engaging groove 36 is fixed with a limit spring 39, and the other end of the limit spring 39 is fixed with a toggle plate 40 extending from the outside of the spring groove 38, and the two groups of toggle plates 40 are on opposite sides. The wall is fixed with a clamping column 41 by bolts, and the end of the clamping column 41 away from the toggle plate 40 slides through the inside of the engaging groove 36, and a clamping hole 42 adapted to the clamping column 41 is opened on the engaging block 37. The toggle plate 40 is provided with an elastic contraction force by the limit spring 39, so that the clamping column 41 automatically rebounds into the clamping hole 42, thereby realizing the positioning of the engaging block 37 and the clamping installation of the pressure block 12. The clamping of the pressure block 12 can be released by pulling the clamping column 41 out of the engaging block 37 through the toggle plate 40, so that the pressure block 12 can be easily disassembled and assembled, and it is convenient to replace the pressure blocks 12 of different specifications and models to meet different pressure requirements.

[0036] A laser emitter 43 is fixed to the top of the L-shaped bracket 10 by bolts, and a laser receiver 44 adapted to the laser emitter 43 is fixed to the top of the turntable 3. There are four groups of laser receivers 44, which correspond one to one with the positions of the four groups of sample placement slots 4. The laser receiver 44 is connected to the PLC control system of the device, and is used to send a start signal to the hydraulic cylinder 11 after sensing the laser emitted by the laser emitter 43. If the laser receiver 44 cannot receive the laser emitted by the laser emitter 43, it indicates that there is a misalignment between the sample placement slot 4 and the pressure block 12. Through the cooperation of the laser emitter 43 and the laser receiver 44, it can be ensured that the pressure block 12 can accurately descend into the sample placement slot 4.

[0037] When it is necessary to carry out compression test on rock samples, the rocks to be tested are first processed into several groups of cylindrical rock bodies with the same specifications to obtain rock samples, and then the first group of rock samples are placed in the sample placement slot 4 on the front side of the turntable 3, and then the rotary adjustment mechanism is used to drive the turntable 3 to rotate ninety degrees clockwise to rotate the first group of rock samples to the left. At this time, the second group of rock samples is continued to be placed in the sample placement slot 4 on the front side of the turntable 3, and at the same time, the two groups of first cylinders 14 are started to drive the two groups of first limit plates 15 to move towards each other, and the two groups of first limit plates 15 are used to push the rock samples to the middle position of the sample bearing plate 6, and the second cylinder 18 is started to drive the second limit plate 19 to extend into the sample placement slot 4 to push the rock samples to move to the left, and the automatic pushing mechanism is used to drive the pushing plate 9 to push the rock samples to move to the right, so as to limit the rock samples to the center position of the sample bearing plate 6 by the limiting effect of the four sides, so as to achieve rock The position of the sample is automatically adjusted, and then the rotary adjustment mechanism is used to drive the turntable 3 to continue to rotate ninety degrees clockwise, so that the rock sample after position adjustment moves to the bottom of the pressure block 12. At this time, the hydraulic cylinder 11 is started to drive the pressure block 12 to descend into the sample placement slot 4 and apply a load to the rock sample to compress the rock sample (while applying pressure, the third group of rock samples continue to be placed in the sample placement slot 4 on the front side of the turntable 3, and the position of the second group of rock samples continues to be adjusted). When the rock sample receives the compression force, the load sensor 5 at the bottom of the sample bearing plate 6 will monitor the change of force in real time. The load sensor 5 converts the monitored signal into an electrical signal and transmits it to the touch screen 13 for display. When the rock sample reaches the destruction point (that is, the rock sample is fractured and broken), the load monitored by the load sensor 5 reaches a peak value. This peak value is the peak load of the rock sample, which is used for subsequent mechanical calculation and analysis;

[0038] After the first group of rock samples are compressed and crushed, the rotary adjustment mechanism is used to drive the turntable 3 to continue rotating ninety degrees clockwise, so that the fragments produced by the first group of rock samples are rotated to the right. At this time, the automatic pushing mechanism is used to drive the pushing plate 9 in the right sample placement slot 4 to move toward the discharge port 7 until the fragments produced by the first group of rock samples are pushed out of the turntable 3 and fall into the waste collection box 17.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rotating continuous compression rock mechanics experimental device, comprising a base (1), characterized in that: A driving platform (2) is fixed on the top of the base (1); a turntable (3) driven to rotate by a rotation adjustment mechanism is rotatably connected to the top of the driving platform (2); sample placement grooves (4) symmetrically distributed in a cross shape are symmetrically provided on the top of the turntable (3); a load sensor (5) is fixed on the bottom of the inner side of the sample placement groove (4); a sample bearing plate (6) is fixed on the top of the load sensor (5); a discharge port (7) connected to the sample placement groove (4) is provided on the side wall of the turntable (3); A curtain (8) is fixed at equal distances on the top inner side of the discharge port (7); a push plate (9) driven to move by an automatic push mechanism is provided on the side of the sample placement slot (4) away from the curtain (8); an L-shaped bracket (10) is fixed on the rear side of the top of the base (1); a pressure block (12) is connected to the top of the L-shaped bracket (10) via a hydraulic cylinder (11); and a touch display screen (13) electrically connected to the load sensor (5) and the hydraulic cylinder (11) is fixed on the front of the drive platform (2).

2. A rotating continuous compression rock mechanics experimental device according to claim 1, characterized in that: The inner side wall of the sample placement slot (4) is symmetrically provided with grooves, and a first cylinder (14) is fixed in the groove, and a first limiting plate (15) is fixed at the output end of the first cylinder (14).

3. The rotating continuous compression rock mechanics experimental device according to claim 1 is characterized by: A support plate (16) and a waste collection box (17) are respectively provided on both sides of the top of the base (1); a second cylinder (18) adapted to the position of the curtain (8) is fixed on the support plate (16); a second limit plate (19) is fixed to the output end of the second cylinder (18).

4. The rotating continuous compression rock mechanics experimental device according to claim 1 is characterized by: The rotation adjustment mechanism comprises a support shaft (20) fixed to the bottom end of the turntable (3) and a first motor (21) fixed to the lower end of the driving platform (2); the output end rotation shaft of the first motor (21) passes through the inner side of the driving platform (2) through a bearing and is fixed with a driving sprocket (22); the lower part of the support shaft (20) passes through the inner side of the driving platform (2) through a bearing and is fixed with a driven sprocket (23); the driving sprocket (22) and the driven sprocket (23) are jointly sleeved with a chain (24).

5. The rotating continuous compression rock mechanics experimental device according to claim 1 is characterized by: A support ring (25) is fixed at the bottom end of the turntable (3), and support balls (26) equidistantly distributed in a ring shape are fixed at the bottom end of the support ring (25), and the support balls (26) are in contact with the upper surface of the driving platform (2).

6. The rotating continuous compression rock mechanics experimental device according to claim 1 is characterized by: The automatic material pushing mechanism comprises a cavity (27) opened inside the turntable (3) and a screw (29) rotatably connected to the cavity (27) and driven to rotate by a second motor (28); a threaded plate (30) is threadedly sleeved on the screw (29); a push rod (31) is symmetrically fixed on one side of the threaded plate (30) close to the material pushing plate (9); an end of the push rod (31) away from the threaded plate (30) slides through the sample placement groove (4) and is fixedly connected to the material pushing plate (9).

7. The rotating continuous compression rock mechanics experimental device according to claim 1 is characterized by: A lifting plate (32) is fixed to the output end of the hydraulic cylinder (11); the pressure block (12) is detachably mounted on the bottom end of the lifting plate (32) via an elastic clamping mechanism; a rubber protective cover (33) adapted to the sample placement groove (4) is fixed to the periphery of the bottom end of the lifting plate (32); and support columns are symmetrically fixed between the base (1) and the driving platform (2).

8. The rotating continuous compression rock mechanics experimental device according to claim 7 is characterized by: A limiting sleeve (34) is symmetrically fixed to the top of the lifting plate (32), a limiting sliding rod (35) is slidably provided inside the limiting sleeve (34), and the top of the limiting sliding rod (35) is fixed to the top of the inner side of the L-shaped bracket (10).

9. The rotating continuous compression rock mechanics experimental device according to claim 7, characterized in that: The elastic clamping mechanism comprises an engaging groove (36) symmetrically opened at the bottom end of the lifting plate (32) and an engaging block (37) symmetrically fixed to the top end of the pressure block (12); a spring groove (38) symmetrically opened at the bottom end of the lifting plate (32); an inner wall of the spring groove (38) close to the engaging groove (36) is connected to a toggle plate (40) through a limit spring (39); a clamping column (41) slidingly penetrating into the inside of the engaging groove (36) is fixed to the side of the toggle plate (40) close to the engaging groove (36); and a clamping hole (42) adapted to the clamping column (41) is opened on the engaging block (37).

10. The rotating continuous compression rock mechanics experimental device according to claim 1, characterized in that: A laser transmitter (43) is fixed to the top of the L-shaped bracket (10), and a laser receiver (44) corresponding to the position of the sample placement slot (4) and adapted to the laser transmitter (43) is symmetrically fixed to the top of the turntable (3), and the laser receiver (44) is electrically connected to the hydraulic cylinder (11).

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