Cyclic impact test device based on long-time deformation effect of hard rock in high-energy environment

Abstract

The invention relates to the technical field of cyclic impact tests, and discloses a cyclic impact test device based on a hard rock long-time deformation effect in a high-energy environment, and the device comprises a rotating shaft which is rotatably arranged in a housing; one side of each partition plate is connected with the circumferential wall of the rotating shaft, the other side of each partition plate extends in the radial direction of the rotating shaft and is in sliding fit with the inner side wall of the shell, the multiple partition plates are evenly distributed in the circumferential direction of the rotating shaft, every two adjacent partition plates, the circumferential wall of the rotating shaft and the inner wall of the shell define a test cavity, and the multiple test cavities are not communicated with one another; a clamping mechanism is arranged in each test cavity, is connected with the partition plate of the test cavity and is used for clamping a test body; the spraying mechanism is configured to provide liquid into the test cavity corresponding to the liquid inlet; the wind power supply mechanism is configured to provide hot air or cold air into the test cavity corresponding to the air inlet; and the driving mechanism is used for controlling the liquid inlet and the air inlet to be communicated with one of the plurality of test cavities. According to the invention, the efficiency of the rock cyclic impact test is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of cyclic impact testing, and in particular to a cyclic impact testing device based on the long-term deformation effect of hard rock in a high-energy environment. Background Art

[0002] With the development of mining and tunnel engineering, the mechanical behavior of hard rock in high-energy environments has received increasing attention. The long-term deformation effect of hard rock not only affects the stability and safety of the project, but is also directly related to the development efficiency and service life of resources. Cyclic impact tests on long-term deformation of rocks in related technologies are often inefficient. Summary of the invention

[0003] The purpose of the present invention is to provide a cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment to address the deficiencies in the prior art, thereby effectively improving the efficiency of the cyclic impact test on rock.

[0004] To achieve the above-mentioned purpose, the present invention provides a cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment, comprising: a shell; a rotating shaft, the rotating shaft is rotatably arranged in the shell; a partition, one side of the partition is connected to the peripheral wall of the rotating shaft, and the other side of the partition extends along the radial direction of the rotating shaft and slidably cooperates with the inner wall of the shell, and the partition is evenly distributed along the circumference of the rotating shaft. Two adjacent partitions, the peripheral wall of the rotating shaft, and the inner wall of the shell are surrounded to form a test cavity, and the multiple test cavities are not connected to each other. The shell is provided with a liquid inlet and an air inlet, at least one of the test cavities is connected to the liquid inlet and the air inlet, and the outer wall of the shell is provided with an openable and closable A sealing door, at least one of the test chambers corresponds to the sealing door; a clamping mechanism, each of the test chambers is provided with the clamping mechanism, the clamping mechanism is connected to the partition of the test chamber and is used to clamp the test body; a spraying mechanism, the spraying mechanism is connected to the liquid inlet, the spraying mechanism is configured to provide liquid to the test chamber corresponding to the liquid inlet; a wind supply mechanism, the wind supply mechanism is connected to the air inlet, the wind supply mechanism is configured to provide hot air or cold air to the test chamber corresponding to the air inlet; a driving mechanism, the driving mechanism is connected to the rotating shaft, the driving mechanism is used to control the liquid inlet and the air inlet to be connected to one of the multiple test chambers.

[0005] The advantages of the cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment over the prior art are: the spray mechanism is connected to the liquid inlet to provide liquid in the test chamber, which can be a high-temperature liquid or a low-temperature liquid; the wind supply mechanism is connected to the air inlet to provide hot air or cold air to the test chamber, thereby simulating the natural environment by using liquid and wind in the test chamber, so that the test body in the test chamber can be subjected to cyclic impact tests under various environmental factors. The drive mechanism drives the shaft to rotate, so as to drive the partition connected to the shaft to rotate, so that each test chamber rotates accordingly, so that different test chambers can be connected to the liquid inlet and the air inlet, and multiple test bodies can be quickly subjected to cyclic impact tests, greatly improving the overall test efficiency.

[0006] In some embodiments, there are multiple liquid inlets and multiple air inlets, multiple spray mechanisms and multiple wind supply mechanisms, each of the test chambers is connected to a spray mechanism via a liquid inlet, and each of the test chambers is connected to a wind supply mechanism via an air inlet.

[0007] In some embodiments, among two adjacent wind supply mechanisms arranged along the circumference of the shell, one wind supply mechanism is configured to provide hot air to the corresponding test cavity, and the other wind supply mechanism is configured to provide cold air to the corresponding test cavity.

[0008] In some embodiments, the outer side wall of the shell is provided with a plurality of the sealing doors, and each of the test chambers corresponds to one of the sealing doors.

[0009] In some embodiments, the clamping mechanism includes: a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion are arranged opposite to each other and are used to clamp the test body in a first direction; a third clamping portion and a fourth clamping portion, the third clamping portion and the fourth clamping portion are arranged opposite to each other and are used to clamp the test body in a second direction; the first direction and the second direction are perpendicular to each other.

[0010] In some embodiments, one end of the first clamping portion is fixed to the peripheral wall of the rotating shaft, and the other end of the first clamping portion has a clamping reference surface abutting against the test body.

[0011] In some embodiments, each of the two partitions of the test chamber is provided with a first fixing frame, and the third clamping portion and the fourth clamping portion are movably connected to the two first fixing frames respectively.

[0012] In some embodiments, a second fixing frame is connected between the upper ends of the two first fixing frames, a third fixing frame is connected between the lower ends of the two first fixing frames, and the second clamping portion is detachably connected to the second fixing frame and the third fixing frame.

[0013] In some embodiments, the second clamping portion includes: a connecting frame, which is detachably connected to the second fixing frame and the third fixing frame respectively; a second pressing portion, which is used to abut the test body; a connecting rod, one end of which passes through the connecting frame and is connected to the second stop portion, and the connecting rod can slide along the first direction; a nut, which is rotatably connected to the side of the connecting frame away from the first clamping portion; a threaded column, which passes through the nut and the connecting frame in sequence and is connected to the second stop portion, and the threaded column is threadedly connected to the nut.

[0014] In some embodiments, the third clamping portion and the fourth clamping portion are synchronously moved closer to or farther away from the test body through a synchronization mechanism; the synchronization mechanism comprises: two first movable rods, the two first movable rods are respectively parallel to the two first fixed frames, the distance between the two first movable rods is greater than the distance between the two first fixed frames, the upper ends of the two first movable rods are connected by a second movable rod, and the lower ends of the two first movable rods are connected by a third movable rod; a synchronization rod, each of the first movable rods is provided with a synchronization rod on one side close to the first fixed frame, the synchronization rod has a first end and a second end, the first end is the end portion of the synchronization rod connected to the first movable rod, and the second end extends along the first direction, the two The spacing between the first ends is smaller than the spacing between the two second ends, the third clamping portion has a first extension portion passing through one of the first fixing frames, the fourth clamping portion has a second extension portion passing through another of the first fixing frames, one of the second ends passes through the first extension portion and slides with the first extension portion, and the other second end passes through the second extension portion and slides with the second extension portion; a guide rod, one end of which is connected to the second movable rod, and the other end of which is slides with the second fixing frame; a screw rod, one end of which is rotatably connected to the second movable rod, and the other end of which is threadedly connected to the second fixing frame, and the guide rod and the screw both extend along the first direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0016] Figure 2 It is one of the structural schematic diagrams of the interior of the shell of an embodiment of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the wind power supply mechanism of an embodiment of the present invention.

[0018] Figure 4 This is the second schematic diagram of the structure inside the shell of the embodiment of the present invention.

[0019] Figure 5 It is one of the structural schematic diagrams of the clamping mechanism of the embodiment of the present invention.

[0020] Figure 6 This is the second structural schematic diagram of the clamping mechanism of the embodiment of the present invention.

[0021] Figure 7 4 is a top view of the clamping mechanism according to an embodiment of the present invention.

[0022] Figure 8 This is the third structural schematic diagram of the clamping mechanism of the embodiment of the present invention.

[0023] Reference numerals: 1. Shell; 11. Liquid inlet; 12. Air inlet; 13. Exhaust outlet; 14. Sealing door; 2. Rotating shaft; 3. Partition plate; 31. First movable ring; 32. Second movable ring; 33. Connecting strip; 4. Clamping mechanism; 41. First clamping part; 411. First pressing part; 42. Second clamping part; 421. Connecting frame; 422. Second pressing part; 423. Connecting rod; 424. Nut; 425. Threaded column; 43. Third clamping part; 431. First extension part; 432. Third pressing part; 44. Fourth clamping part; 441. Second extension part; 442. Fourth The pressing part; 45, the fifth clamping part; 46, the sixth clamping part; 47, the fixed frame; 471, the first fixed frame; 472, the second fixed frame; 473, the third fixed frame; 5, the spray mechanism; 6, the wind supply mechanism; 61, the fan; 62, the air inlet pipe; 7, the driving mechanism; 8, the positioning mechanism; 81, the connecting seat; 82, the positioning pin; 9, the synchronization mechanism; 91, the movable frame; 911, the first movable rod; 912, the second movable rod; 913, the third movable rod; 92, the synchronization rod; 921, the first end; 922, the second end; 93, the guide rod; 94, the screw. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] The following describes a cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to an embodiment of the present invention with reference to the accompanying drawings.

[0026] Reference Figure 1-Figure 8The present invention provides a cyclic impact test device based on the long-term deformation effect of hard rock under high-energy environment, comprising: a shell 1, a rotating shaft 2, a partition 3, a clamping mechanism 4, a spraying mechanism 5, a wind supply mechanism 6 and a driving mechanism 7. The outer surface of the shell 1 can be a regular polygonal structure or a cylindrical structure, and the inner wall of the shell 1 is always a cylindrical circumferential surface. To facilitate the installation of the shell 1, the shell 1 is arranged on a base. The rotating shaft 2 is rotatably arranged in the shell 1, and the center of the rotating shaft 2 coincides with the center of the shell 1. One side of the partition 3 is connected to the peripheral wall of the rotating shaft 2, and the other side of the partition 3 extends along the radial direction of the rotating shaft 2 and slides with the inner wall of the shell 1. There are multiple partitions 3 evenly distributed along the circumference of the rotating shaft 2, and two adjacent partitions 3 and the peripheral wall of the rotating shaft 2 and the inner wall of the shell 1 are surrounded to form a test cavity, and the multiple test cavities are not connected to each other. Specifically, the top wall of the test chamber is the inner top wall of the shell 1, the inner wall of the test chamber is formed by sequentially connecting the circumferential inner wall of the shell 1, the side wall of the partition 3 and the circumferential wall of the rotating shaft 2, and the bottom wall of the test chamber is the bottom wall of the shell 1. In addition, a first movable ring 31 is provided above the partition 3, and a second movable ring 32 is provided below the partition 3. The centers of the first movable ring 31 and the second movable ring 32 coincide with the center of the rotating shaft 2, and the upper end surface and the lower end surface of each partition 3 are provided with a connecting strip 33 arranged along the extension direction thereof. One end of the connecting strip 33 located above the multiple partitions 3 is connected to the circumferential wall of the rotating shaft 2, and the other end is connected to the inner wall of the first movable ring 31; one end of the connecting strip 33 located below the multiple partitions 3 is connected to the circumferential wall of the rotating shaft 2, and the other end is connected to the inner wall of the second movable ring 32. The first movable ring 31 and the second movable ring 32 are both rotatably matched with the shell 1. When the rotating shaft 2 drives the test chamber to switch, the other side of the partition 3 slides with the inner peripheral wall of the shell 1, the upper end surface of the partition 3 slides with the inner top wall of the shell 1, and the lower end surface of the partition 3 slides with the inner bottom wall of the shell 1. The shell 1 is provided with a liquid inlet 11 and an air inlet 12, which can be arranged at the top of the shell 1. At least one test chamber is connected with the liquid inlet 11 and the air inlet 12. The outer wall of the shell 1 is provided with a sealing door 14 that can be opened and closed. At least one test chamber corresponds to the sealing door 14. The sealing door 14 is formed as part of the inner wall of the test chamber, and after the sealing door 14 is closed, an arc-shaped inner wall is formed and connected with the inner wall of the shell 1. The other side of the partition 3 slides with the inner wall formed by the sealing door 14. The sealing door 14 can be opened to place the test body, which is a hard rock sample cut into a tetrahedron. Each test cavity is provided with a clamping mechanism 4, which is connected to the partition 3 of the test cavity and is used to clamp the test body. When the rotating shaft 2 rotates, the clamping mechanism 4 in each test cavity drives the test body to move synchronously. The spraying mechanism 5 is connected to the liquid inlet 11, and the spraying mechanism 5 is configured to provide liquid to the test cavity corresponding to the liquid inlet 11. The spraying mechanism 5 can provide hot water or cold water to the test cavity, or provide other liquids according to the test needs. The spraying mechanism 5 sprays the liquid evenly on the surface of the test body.The wind supply mechanism 6 is connected to the air inlet 12, and is configured to provide hot air or cold air to the test chamber corresponding to the air inlet 12, and the wind supply mechanism 6 controls the temperature and humidity of the wind. The driving mechanism 7 is connected to the rotating shaft 2, and the driving mechanism 7 is used to control the liquid inlet 11 and the air inlet 12 to be connected to one of the multiple test chambers. The driving mechanism 7 can drive the rotating shaft 2 to rotate, thereby rotating different test chambers, switching different test chambers to correspond to the spray mechanism 5 and the wind supply mechanism 6, so that the partition 3 drives the test body in the test chamber to perform a cyclic impact test. The driving mechanism 7 is a motor, which is fixedly installed in the base, and the output shaft of the motor is concentrically arranged with the rotating shaft 2 and fixed to the lower end of the rotating shaft 2.

[0027] The embodiment of the present invention places a plurality of test bodies in a plurality of test chambers distributed along the circumference of the shell 1, and clamps and fixes the test bodies through the clamping mechanism 4 in each test chamber. The spray mechanism 5 is connected with the liquid inlet 11 to provide liquid in the test chamber, which can be a high-temperature liquid or a low-temperature liquid; the wind supply mechanism 6 is connected with the air inlet 12 to provide hot air or cold air to the test chamber, thereby simulating the natural environment by using liquid and wind in the test chamber, so that the test body in the test chamber can be subjected to cyclic impact tests under various environmental factors. The driving mechanism 7 drives the rotating shaft 2 to rotate, so as to drive the partition 3 connected to the rotating shaft 2 to rotate, so that each test chamber rotates accordingly, so that different test chambers can be connected with the liquid inlet 11 and the air inlet 12, so that multiple test bodies can be quickly subjected to cyclic impact tests, greatly improving the overall test efficiency.

[0028] The cyclic impact test device of the present invention can simulate the temperature, humidity, wind force and other conditions under actual working conditions, and provides a more realistic and reliable test environment for the study of the long-term deformation effect of hard rock.

[0029] According to some embodiments of the present invention, referring to Figure 1-Figure 4 There are multiple liquid inlets 11 and air inlets 12, and each test cavity is correspondingly provided with a liquid inlet 11 and an air inlet 12 above. There are multiple spray mechanisms 5 and wind supply mechanisms 6, and each test cavity is connected to a spray mechanism 5 through a liquid inlet 11, and each test cavity is connected to a wind supply mechanism 6 through an air inlet 12.

[0030] According to some embodiments of the present invention, referring to Figure 2 , Figure 4 The spray mechanism 5 includes: a water supply tank, a spray pipe and a spray head. A plurality of top covers are fixed on the top of the shell 1, each of which corresponds to a test cavity. A spray pipe is fixed on each top cover, and a plurality of spray heads are arranged on the spray pipe. The spray heads are inclined toward the center of the test cavity, that is, toward the position corresponding to the clamping mechanism 4, so that the liquid sprayed by the spray head can be evenly sprayed onto the surface of the test body.

[0031] According to some embodiments of the present invention, referring to Figure 1 , Figure 3 The wind supply mechanism 6 includes: a fan 61 and an air inlet pipe 62. The fan 61 is arranged on a base and located on one side of the shell 1. The two ends of the air inlet pipe 62 are respectively connected to the air outlet end of the fan 61 and the air inlet 12 arranged on the shell 1. A discharge pipe is provided at the bottom of the shell 1, and the discharge pipe corresponds to the bottom of at least one test cavity. A valve is provided on the discharge pipe, which can be used to discharge the wind in the test cavity to balance the pressure in the test cavity.

[0032] The fan 61 in the implementation of the present invention can be a cold or hot fan 61, which can switch modes as needed to provide cold or hot air in the test chamber; it can also be one of a strong wind hot fan 61, a cold fan 61, and an industrial hot fan 61. The corresponding fan 61 can be selected as needed to provide wind in the test chamber to simulate the environmental factors required for the test body to perform a cyclic impact test. In other examples, the fan 61 can also be a common fan 61, and the wind supply mechanism 6 also includes a heating device and / or a refrigeration device. The heating device and the refrigeration device are connected to the air inlet pipe 62, which can provide hot air / cold air in the test chamber, thereby adjusting the temperature in the test chamber.

[0033] In some embodiments, the discharge pipe can also be used to discharge the liquid remaining in the test chamber after being sprayed by the spraying mechanism 5 .

[0034] According to some embodiments of the present invention, referring to Figure 3 Among the two adjacent wind supply mechanisms 6 arranged along the circumference of the shell 1, one wind supply mechanism 6 is configured to provide hot air to the corresponding test chamber, and the other wind supply mechanism 6 is configured to provide cold air to the corresponding test chamber.

[0035] In a specific example, the test chamber corresponding to the wind supply mechanism 6 that provides hot air is a hot air test chamber, and the test chamber corresponding to the wind supply mechanism 6 that provides cold air is a cold air test chamber. The driving mechanism 7 drives the rotating shaft 2 to rotate, so that the hot air test chamber rotates to the adjacent cold air test chamber, so that the original hot air test chamber is switched to the cold air test chamber. Since the switched test chamber is connected to the wind supply mechanism 6 that provides cold air, cold air can be provided to the inside thereof, so that the test body that has experienced the hot air environment continues to be tested in the cold air environment, completing a hot and cold cycle. Repeat the above steps of hot air supply, state switching and cold air supply, and perform multiple cyclic impact tests according to the test requirements to more comprehensively study the deformation effect of hard rock under different temperature conditions. After completing all the predetermined cyclic tests, stop the operation of the driving mechanism 7, the wind supply mechanism 6, etc., open the sealing door 14, and take out the tested test body for subsequent analysis, detection and data processing.

[0036] According to some embodiments of the present invention, referring to Figure 1-Figure 4 The outer wall of the housing 1 is provided with a plurality of sealing doors 14, and each test cavity corresponds to a sealing door 14. Providing a plurality of sealing doors 14 is conducive to corresponding to each test cavity, thereby improving the work efficiency of placing or removing the test body.

[0037] According to some embodiments of the present invention, referring to Figure 4-Figure 8 The clamping mechanism 4 includes: a first clamping portion 41, a second clamping portion 42, a third clamping portion 43, and a fourth clamping portion 44. The first clamping portion 41 and the second clamping portion 42 are arranged opposite to each other and are used to clamp the test body in the first direction, and the third clamping portion 43 and the fourth clamping portion 44 are arranged opposite to each other and are used to clamp the test body in the second direction; the first direction and the second direction are perpendicular to each other.

[0038] In a specific example, the test body is a hard rock sample cut into a tetrahedron. Preferably, the test body in this embodiment is a cube. The first clamping portion 41 and the second clamping portion 42 clamp the opposite sides of the test body in the first direction, and the third clamping portion 43 and the fourth clamping portion 44 clamp the other two sides of the test body in the second direction to complete the clamping and fixing of the test body.

[0039] According to some embodiments of the present invention, referring to Figure 4-Figure 8 One end of the first clamping portion 41 is fixed to the peripheral wall of the rotating shaft 2, and the other end of the first clamping portion 41 has a clamping reference surface that abuts against the test body. The other end of the first clamping portion 41 is a first pressing portion 411. The first direction is the radial direction of the rotating shaft 2. After the test body is placed in the test chamber, the first clamping portion 41 is fixed to the peripheral wall of the rotating shaft 2 and used as a clamping reference surface so that the test body abuts against the clamping reference surface of the first clamping portion 41. The second clamping portion 42 is moved relative to the first clamping portion 41 along the first direction to complete the clamping of the test body.

[0040] According to some embodiments of the present invention, referring to Figure 4-Figure 8 The two partitions 3 of the test chamber are each provided with a first fixing frame 471, and the third clamping portion 43 and the fourth clamping portion 44 are respectively movably connected to the two first fixing frames 471. The third clamping portion 43 and the fourth clamping portion 44 are respectively installed by two partitions 3, which is conducive to improving the stability of the clamping mechanism 4.

[0041] According to some embodiments of the present invention, referring to Figure 4-Figure 8A second fixing frame 472 is connected between the upper ends of the two first fixing frames 471, a third fixing frame 473 is connected between the lower ends of the two first fixing frames 471, and the second clamping portion 42 is detachably connected to the second fixing frame 472 and the third fixing frame 473. The ends of the first fixing frame 471, the second fixing frame 472, the first fixing frame 471 and the third fixing frame 473 are sequentially connected to form a square fixed frame 47, the two first fixing frames 471 are respectively the two side edges of the fixed frame 47, the second fixing frame 472 is the top edge of the fixed frame 47, and the third fixing frame 473 is the bottom edge of the fixed frame 47, the test body can be placed on the bottom edge of the fixed frame 47, and abut against the clamping reference surface of the first clamping portion 41, which can facilitate the clamping and installation of the test body. Then the second clamping portion 42 is installed on the second fixing frame 472 and the third fixing frame 473, and the test body is clamped by the second clamping portion 42.

[0042] According to some embodiments of the present invention, referring to Figure 5 , Figure 6 The second clamping portion 42 includes: a connecting frame 421, a second pressing portion 422, a connecting rod 423, a nut 424 and a threaded column 425. The connecting frame 421 is detachably connected to the second fixing frame 472 and the third fixing frame 473 respectively. The second pressing portion 422 is used to abut the test body. One end of the connecting rod 423 passes through the connecting frame 421 and is connected to the second stop portion. The connecting rod 423 can slide along the first direction. The nut 424 is rotatably connected to the side of the connecting frame 421 away from the first clamping portion 41. The threaded column 425 passes through the nut 424 and the connecting frame 421 in sequence and is connected to the second stop portion. The threaded column 425 is threadedly connected to the nut 424.

[0043] Before the test body is installed, the connecting frame 421 is in a state of being separated from the second fixing frame 472 and the third fixing frame 473, so that the test body is placed from one side of the fixed frame 47 to the inside of the fixed frame 47. After the test body is abutted against the first clamping portion 41, the nut 424 is rotated forward, so that the threaded column 425 approaches the test body along the first direction, and the connecting rod 423 slides along the first direction toward the first clamping portion 41, driving the second pressing portion 422 to abut against the surface of the test body.

[0044] According to some embodiments of the present invention, referring to Figure 5-Figure 8, a positioning mechanism 8 is provided on one side of the second fixing frame 472 and the third fixing frame 473, which is used to realize the detachable connection between the second clamping portion 42 and the fixed frame 47. The connecting frame 421 is a U-shaped frame, and the two ends of the opening of the U-shaped frame are detachably connected to the second fixing frame 472 and the third fixing frame 473. Specifically, the connecting frame 421 includes a first plate, a second plate and a third plate, the second plate extends in the up-down direction, the first plate and the third plate are respectively arranged at the upper and lower ends of the second plate, the first plate and the third plate are both perpendicular to the second plate, and the threaded column 425 is arranged on the second plate.

[0045] The positioning mechanism 8 includes: four connecting seats 81 and four positioning pins 82. Two spaced connecting seats 81 are provided on the side of the second fixing frame 472 away from the first clamping portion 41, and two spaced connecting seats 81 are provided on the side of the third fixing frame 473 away from the first clamping portion 41. Each connecting seat 81 is rotatably connected to a positioning pin 82. After the two positioning pins 82 located at the top are rotated, they are pressed against the side of the first plate away from the third plate, and after the two positioning pins 82 located at the bottom are rotated, they are pressed against the side of the third plate away from the first plate.

[0046] Furthermore, in order to improve the installation stability of the connection frame 421, the first plate is inserted between the two connection seats 81 located at the top and is interference fit with the two connection seats 81, and the third plate is inserted between the two connection seats 81 located at the bottom and is interference fit with the two connection seats 81. The connection seats 81 have an extension portion, and the lower end surface of the first plate can abut against the extension portions of the two connection seats 81 located at the top, and the upper end surface of the third plate can abut against the extension portions of the two connection seats 81 located at the bottom. It should be noted that the connection frame 421 has a certain rigidity and is not easily deformed, so that the four positioning pins 82 are more stable and reliable when fixing the connection frame 421.

[0047] According to some embodiments of the present invention, referring to Figure 4-Figure 8 The third clamping portion 43 and the fourth clamping portion 44 are synchronously moved toward or away from the test body through the synchronization mechanism 9, which is beneficial to improving the clamping efficiency.

[0048] The synchronization mechanism 9 includes: two first movable rods 911, a second movable rod 912, a third movable rod 913, a synchronization rod 92, a guide rod 93 and a screw rod 94. The two first movable rods 911 are parallel to the two first fixed frames 471 respectively. The spacing between the two first movable rods 911 is greater than the spacing between the two first fixed frames 471. The upper ends of the two first movable rods 911 are connected by the second movable rod 912, and the lower ends of the two first movable rods 911 are connected by the third movable rod 913. The ends of the first movable rod 911, the second movable rod 912, the first movable rod 911 and the third movable rod 913 are connected in sequence to form a movable frame 91. The two first movable rods 911 are respectively the side edges of the movable frame 91, the second movable rod 912 is the top edge of the movable frame 91, and the third movable rod 913 is the bottom edge of the movable frame 91.

[0049] Each first movable rod 911 is provided with a synchronous rod 92 on one side close to the first fixed frame 471. The synchronous rod 92 has a first end 921 and a second end 922. The first end 921 is the end of the synchronous rod 92 connected to the first movable rod 911, and the second end 922 extends along the first direction. The distance between the two first ends 921 is smaller than the distance between the two second ends 922. The third clamping portion 43 has a first extension portion 431 passing through a first fixed frame 471, and the first extension portion 431 is slidably matched with the first fixed frame 471 along the second direction. The fourth clamping portion 44 has a second extension portion 441 passing through another first fixed frame 471, and the second extension portion 441 is slidably matched with the first fixed frame 471 along the second direction. One second end 922 passes through the first extension portion 431 and is slidably matched with the first extension portion 431, and the other second end 922 passes through the second extension portion 441 and is slidably matched with the second extension portion 441. One end of the guide rod 93 is connected to the second movable rod 912, and the other end of the guide rod 93 is slidably matched with the second fixed frame 472. Specifically, a first mounting seat is fixed to the upper end surface of the second movable rod 912 and the second fixed frame 472, one end of the guide rod 93 is fixed to the first mounting seat on the second movable rod 912, and the other end of the guide rod 93 passes through the first mounting seat on the second fixed frame 472 and slidably matches with the first mounting seat. One end of the screw rod 94 is rotatably connected to the second movable rod 912, and the other end of the screw rod 94 is threadedly connected to the second fixed frame 472. Specifically, a second mounting seat is fixed to the upper end surface of the second movable rod 912 and the second fixed frame 472, one end of the screw rod 94 is rotatably connected to the second mounting seat of the second movable rod 912, and the other end of the screw rod 94 passes through the second mounting seat on the second fixed frame 472 and is threadedly connected thereto. The guide rod 93 and the screw rod 94 both extend along the first direction. A torsion block is fixed at the end of the screw rod 94 passing through the second fixed frame 472. By rotating the torsion block forward, the screw rod 94 can be driven to rotate, thereby allowing the second movable rod 912 to approach the second fixed frame 472. By rotating the torsion block backward, the screw rod 94 can be driven to rotate backward, thereby allowing the second movable rod 912 to move away from the second fixed frame 472.

[0050] By rotating the torsion block forward, when the second movable rod 912 is brought close to the second fixed frame 472, the synchronization rod 92 on the first movable rod 911 is driven to approach the second fixed frame 472. Since the spacing between the first ends 921 of the two synchronization rods 92 is smaller than the spacing between the second ends 922, and since one synchronization rod 92 is slidingly matched with the first protruding portion 431, and the other synchronization rod 92 is slidingly matched with the second protruding portion 441, one synchronization rod 92 pushes the first protruding portion 431 to slide along the second direction toward the center of the fixed frame 47, and the other synchronization rod 92 pushes the second protruding portion 441 to slide along the second direction toward the center of the fixed frame 47, thereby reducing the spacing between the third clamping portion 43 and the fourth clamping portion 44 to clamp the other two opposite sides of the test body.

[0051] On the contrary, by rotating the torsion block in the opposite direction, the screw rod 94 can be driven to rotate in the opposite direction, so that the second movable rod 912 moves away from the second fixed frame 472, and then one synchronization rod 92 pulls the first extension part 431 to slide along the second direction toward the direction away from the center of the fixed frame 47, and the other synchronization rod 92 pulls the second extension part 441 to slide along the second direction toward the direction away from the center of the fixed frame 47, and the distance between the third clamping part 43 and the fourth clamping part 44 increases, thereby loosening the clamping of the test body.

[0052] In some specific examples, the ends of the first fixed frame 471, the second fixed frame 472, the first fixed frame 471 and the third fixed frame 473 are connected in sequence to form a square fixed frame 47, the ends of the first movable rod 911, the second movable rod 912, the first movable rod 911 and the third movable rod 913 are connected in sequence to form a movable frame 91, the movable frame 91 is located on the side of the fixed frame 47 close to the first clamping portion 41, and the movable frame 91 is parallel to the fixed frame 47, the spacing between the two first movable rods 911 is greater than the spacing between the two first fixed frames 471, the second movable rod 912 is parallel to the second fixed frame 472 and the upper surfaces are flush, and the third movable rod 913 is parallel to the third fixed frame 473 and the lower surfaces are flush.

[0053] In some other examples, the third clamping portion 43 includes a first protruding portion 431 and a third pressing portion 432, the third pressing portion 432 is in contact with the surface of the test body, the first protruding portion 431 is fixed to the other side of the third pressing portion 432, and the first protruding portion 431 is movably connected to a first fixing frame 471. The end of the first protruding portion 431 passes through the first fixing frame 471 and can slide along the first direction. The fourth clamping portion 44 includes a second protruding portion 441 and a fourth pressing portion 442, and the end of the second protruding portion 441 passes through another first fixing frame 471 and can slide along the first direction. The third clamping portion 43 and the fourth clamping portion 44 are symmetrically arranged about the center of the fixed frame 47.

[0054] According to some embodiments of the present invention, referring to Figure 5-Figure 8 The clamping mechanism 4 also includes: a fifth clamping portion 45 and a sixth clamping portion 46, which are used to clamp the upper and lower end surfaces of the test body respectively. The fifth clamping portion 45 is movably disposed on the second fixed frame 472, and the sixth clamping portion 46 is movably disposed on the third fixed frame 473.

[0055] The fifth clamping portion 45 includes a third protruding portion and a fifth pressing portion, the third protruding portion passes through the second fixing frame 472 and slides with the second fixing frame 472, the fifth pressing portion is fixed to the lower end of the third protruding portion passing through the second fixing frame 472, and the fifth pressing portion abuts against the upper surface of the test body. The sixth clamping portion 46 includes a fourth protruding portion and a sixth pressing portion, the fourth protruding portion passes through the third fixing frame 473 and slides with the third fixing frame 473, the sixth pressing portion is fixed to the upper end of the fourth protruding portion, and the sixth pressing portion abuts against the lower surface of the test body.

[0056] The synchronization mechanism 9 is provided with four synchronization rods 92, and the four synchronization rods 92 correspond to the centers of the top edge, two side edges and the bottom edge of the fixed frame 47, respectively. The two synchronization rods 92 located at the top edge and the bottom edge of the fixed frame 47 are respectively connected to the fifth clamping portion 45 and the sixth clamping portion 46 to drive the fifth clamping portion 45 and the sixth clamping portion 46 to clamp the test body synchronously. Specifically, a synchronization rod 92 is provided on the side of the second movable rod 912 close to the second fixed frame 472, and the synchronization rod 92 passes through the third extension portion and slides with the third extension portion, and another synchronization rod 92 is provided on the side of the third movable rod 913 close to the third fixed frame 473, and the synchronization rod 92 passes through the fourth extension portion and slides with the fourth extension portion. The two synchronization rods 92 in the up-down direction each have a first end 921 and a second end 922. The end of the synchronization rod 92 located at the top connected to the second movable rod 912 is the first end 921 of the synchronization rod 92, and the end extending toward the second fixed frame 472 is the second end 922 of the synchronization rod 92; the end of the synchronization rod 92 located at the bottom connected to the third movable rod 913 is the first end 921 of the synchronization rod 92, and the end extending toward the third fixed frame 473 is the second end 922 of the synchronization rod 92. The distance between the two first ends 921 is smaller than the distance between the two second ends 922. That is, the end of the synchronization rod 92 connected to the movable frame 91 is the first end 921, and the other end of the synchronization rod 92 is the second end 922.

[0057] When the screw 94 is rotated to make the movable frame 91 approach the fixed frame 47, the third clamping part 43, the fourth clamping part 44, the fifth clamping part 45 and the sixth clamping part 46 can clamp the test body at the same time. When the screw 94 is rotated in the opposite direction, the movable frame 91 is moved away from the fixed frame 47, thereby releasing the clamping of the test body by the third clamping part 43, the fourth clamping part 44, the fifth clamping part 45 and the sixth clamping part 46.

[0058] According to some embodiments of the present invention, referring to Figure 8 A third mounting seat is provided on the lower end surfaces of the third movable rod 913 and the third fixed frame 473, and the third mounting seat on the third movable rod 913 is provided with a secondary guide rod, the other end of the secondary guide rod extends along the first direction and passes through the third mounting seat on the third fixed frame 473, and the other end of the secondary guide rod is slidably matched with the third mounting seat of the third fixed frame 473.

[0059] In some specific examples, the clamping mechanism 4 may be made of a heat-conducting material, which is beneficial for conducting heat to the surface of the test object.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment, characterized in that: include: Housing (1); A rotating shaft (2), the rotating shaft (2) being rotatably disposed in the housing (1); a partition (3), one side of the partition (3) being connected to the peripheral wall of the rotating shaft (2), the other side of the partition (3) extending along the radial direction of the rotating shaft (2) and slidingly cooperating with the inner wall of the shell (1), a plurality of the partitions (3) being evenly distributed along the circumference of the rotating shaft (2), two adjacent partitions (3) and the peripheral wall of the rotating shaft (2) and the inner wall of the shell (1) forming a test cavity, the plurality of test cavities being not connected to each other, the shell (1) being provided with a liquid inlet (11) and an air inlet (12), at least one of the test cavities being connected to the liquid inlet (11) and the air inlet (12), the outer side wall of the shell (1) being provided with an openable and closable sealing door (14), at least one of the test cavities corresponding to the sealing door (14); A clamping mechanism (4), each of the test chambers being provided with the clamping mechanism (4), the clamping mechanism (4) being connected to the partition plate (3) of the test chamber and being used to clamp the test body; a spray mechanism (5), the spray mechanism (5) being in communication with the liquid inlet (11), the spray mechanism (5) being configured to provide liquid into the test cavity corresponding to the liquid inlet (11); A wind supply mechanism (6), the wind supply mechanism (6) being in communication with the air inlet (12), the wind supply mechanism (6) being configured to provide hot air or cold air to the test chamber corresponding to the air inlet (12); A driving mechanism (7), the driving mechanism (7) being connected to the rotating shaft (2), the driving mechanism (7) being used to control the liquid inlet (11) and the air inlet (12) to be connected to one of the plurality of test chambers.

2. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 1 is characterized in that: There are a plurality of the liquid inlet (11) and the air inlet (12), and there are a plurality of the spraying mechanisms (5) and the wind supply mechanisms (6). Each of the test chambers is connected to a spraying mechanism (5) via a liquid inlet (11), and each of the test chambers is connected to a wind supply mechanism (6) via a wind inlet (12).

3. The cyclic impact test device based on the long-term deformation effect of hard rock under high-energy environment according to claim 2 is characterized in that: Of the two adjacent wind supply mechanisms (6) arranged along the circumference of the shell (1), one wind supply mechanism (6) is configured to provide hot air to the corresponding test chamber, and the other wind supply mechanism (6) is configured to provide cold air to the corresponding test chamber.

4. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 1 is characterized in that: The outer side wall of the housing (1) is provided with a plurality of sealing doors (14), and each of the test chambers corresponds to a sealing door (14).

5. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 1 is characterized in that: The clamping mechanism (4) comprises: A first clamping portion (41) and a second clamping portion (42), wherein the first clamping portion (41) and the second clamping portion (42) are arranged opposite to each other and are used to clamp the test object in a first direction; a third clamping portion (43) and a fourth clamping portion (44), the third clamping portion (43) and the fourth clamping portion (44) being arranged opposite to each other and used for clamping the test body in a second direction; The first direction and the second direction are perpendicular to each other.

6. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 5 is characterized in that: One end of the first clamping portion (41) is fixed to the peripheral wall of the rotating shaft (2), and the other end of the first clamping portion (41) has a clamping reference surface that abuts against the test body.

7. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 6 is characterized in that: The two partitions (3) of the test chamber are each provided with a first fixing frame (471), and the third clamping portion (43) and the fourth clamping portion (44) are movably connected to the two first fixing frames (471) respectively.

8. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 7 is characterized in that: A second fixing frame (472) is connected between the upper ends of the two first fixing frames (471), a third fixing frame (473) is connected between the lower ends of the two first fixing frames (471), and the second clamping portion (42) is detachably connected to the second fixing frame (472) and the third fixing frame (473).

9. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 8 is characterized in that: The second clamping portion (42) comprises: A connecting frame (421), the connecting frame (421) being detachably connected to the second fixing frame (472) and the third fixing frame (473) respectively; A second pressing portion (422), the second pressing portion (422) being used for abutting against the test body; a connecting rod (423), one end of which passes through the connecting frame (421) and is connected to the second stop portion, and the connecting rod (423) is capable of sliding along the first direction; a nut (424), the nut (424) being rotatably connected to a side of the connecting frame (421) facing away from the first clamping portion (41); A threaded column (425), wherein the threaded column (425) is sequentially passed through the nut (424) and the connecting frame (421) and is connected to the second stop portion, and the threaded column (425) is threadedly connected to the nut (424).

10. The cyclic impact test device based on the long-term deformation effect of hard rock in a high-energy environment according to claim 8, characterized in that: The third clamping portion (43) and the fourth clamping portion (44) synchronously approach or move away from the test object via a synchronization mechanism (9); The synchronization mechanism (9) comprises: Two first movable rods (911), the two first movable rods (911) are respectively parallel to the two first fixing frames (471), the distance between the two first movable rods (911) is greater than the distance between the two first fixing frames (471), the upper ends of the two first movable rods (911) are connected via a second movable rod (912), and the lower ends of the two first movable rods (911) are connected via a third movable rod (913); a synchronization rod (92), wherein each first movable rod (911) is provided with a synchronization rod (92) on one side close to the first fixed frame (471), the synchronization rod (92) having a first end (921) and a second end (922), the first end (921) being the end of the synchronization rod (92) connected to the first movable rod (911), the second end (922) extending along the first direction, the distance between the two first ends (921) being smaller than the distance between the two second ends (922), the third clamping portion (43) having a first extension portion (431) passing through one first fixed frame (471), the fourth clamping portion (44) having a second extension portion (441) passing through another first fixed frame (471), one second end (922) passing through the first extension portion (431) and slidingly cooperating with the first extension portion (431), and the other second end (922) passing through the second extension portion (441) and slidingly cooperating with the second extension portion (441); A guide rod (93), one end of the guide rod (93) being connected to the second movable rod (912), and the other end of the guide rod (93) being slidably matched with the second fixing frame (472); A screw rod (94), one end of the screw rod (94) is rotatably connected to the second movable rod (912), the other end of the screw rod (94) is threadedly connected to the second fixing frame (472), and the guide rod (93) and the screw rod (94) both extend along the first direction.

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