Particle Triaxial Flexible Loading Testing Machine

Abstract

The present invention relates to the technical field of particle loading, and discloses a particle three-axis flexible loading testing machine, which includes a frame, two energy storage and synchronous release mechanisms, a pushing mechanism, a particle loading mechanism and a controller. The two energy storage and synchronous release mechanisms, the pushing mechanism and the particle loading mechanism are all installed on the frame. The two energy storage and synchronous release mechanisms are respectively connected to the front and rear ends of the particle loading mechanism, and the pushing mechanism clamps the left and right ends of the particle loading mechanism. The energy storage and synchronous release mechanism and the pushing mechanism are both connected to the controller. The present invention can divide the entire loading area into several loading units, and each loading unit is applied with the same flexible force by a spring-energized pressing block; the entire loading plane forms a flexible loading plane, which will not cause particle deformation, thus solving the problem of uneven stress during the loading process.

Description

Technical Field

[0001] The present invention relates to the technical field of particle loading, and particularly to a particle three-axis flexible loading testing machine. Background Art

[0002] In the existing testing machines, a plate is used to load particle samples, which will lead to the problem of uneven force on the particles after deformation in each area. Because if the deformation amounts of each particle are inconsistent, the forces on the particles with more deformation and less deformation will be different. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above deficiencies in the prior art, and provide a particle three-axis flexible loading testing machine.

[0004] The purpose of the present invention is achieved through the following technical solutions: The particle three-axis flexible loading testing machine includes a frame, two energy storage and synchronous release mechanisms, a pushing mechanism, a particle loading mechanism, and a controller. The two energy storage and synchronous release mechanisms, the pushing mechanism, and the particle loading mechanism are all installed on the frame. The two energy storage and synchronous release mechanisms are respectively connected to the front and rear ends of the particle loading mechanism. The pushing mechanism clamps the left and right ends of the particle loading mechanism. The energy storage and synchronous release mechanisms and the pushing mechanism are both connected to the controller.

[0005] More preferably, the energy storage and synchronous release mechanism includes an energy storage structure and a release structure. One end of the release structure is connected to the particle loading mechanism, and the other end of the release structure is connected to the energy storage structure. The energy storage structure is installed on the frame. The energy storage structure and the release structure are both connected to the controller.

[0006] More preferably, the energy storage structure includes a first direct-acting electric cylinder, a first sensor, a first push rod, a first guide shaft, and a second push rod. The first direct-acting electric cylinder is installed on the frame. The first direct-acting electric cylinder is connected to the first push rod through the first sensor. The two ends of the first push rod are respectively connected to the two ends of the second push rod through the first guide shaft. The two ends of the release structure are slidably connected to the two first guide shafts. The first direct-acting electric cylinder and the first sensor are both connected to the controller.

[0007] A better option is that the release structure includes a bushing, a servo motor, a motor base, a lifting crossbeam, two second guide shafts, a screw rod, a slide rail mounting plate, a first clamping plate, a second clamping plate, and a synchronous gear. The servo motor is installed on the motor base. Both ends of the motor base are installed on the top of the slide rail mounting plate through the two second guide shafts. Both ends of the lifting crossbeam are respectively slidably connected to the two second guide shafts. The servo motor is threadedly connected to the lifting crossbeam through the screw rod. The lifting crossbeam is connected to the top of the first clamping plate. Both the first clamping plate and the second clamping plate are slidably connected to the slide rail mounting plate. First racks are provided at both ends of the first clamping plate, and second racks are provided at both ends of the second clamping plate. The first racks are meshed with the second racks through the synchronous gear. Both ends of the slide rail mounting plate are respectively slidably connected to the energy storage structure through the bushing. The servo motor is connected to the controller.

[0008] A better option is that the particle loading mechanism includes a first glass plate, a second glass plate, a first loading plate, a second loading plate, and two rows of soft force applying components. Both the first glass plate and the second glass plate are installed on the frame. The first glass plate and the second glass plate are arranged in parallel. Both the first loading plate and the second loading plate are located between the first glass plate and the second glass plate. The first loading plate and the second loading plate are arranged oppositely. Both the first loading plate and the second loading plate correspond to the pushing mechanism. The two rows of soft force applying components are arranged oppositely. The two rows of soft force applying components respectively correspond to the two energy storage and synchronous release mechanisms. The first glass plate, the second glass plate, the first loading plate, the second loading plate, and the two rows of soft force applying components enclose a loading area.

[0009] A better option is that the soft force applying component includes a pressing block, a screw rod, a sleeve, a conical stopper, and a spring. The pressing block is connected to the conical stopper through the screw rod. Both the spring and the sleeve are sleeved on the screw rod. One end of the sleeve and the conical stopper are both matched with the energy storage and synchronous release mechanism. The other end of the sleeve abuts against the first end of the spring. The other end of the spring abuts against the pressing block. The pressing blocks are linearly arranged to form two rows of pressing blocks, and the two rows of pressing blocks are arranged oppositely.

[0010] A better option is that the pushing mechanism includes an active pushing structure and a particle loading fixed plate. Both the particle loading fixed plate and the active pushing structure are installed on the frame. The particle loading fixed plate abuts against one end of the particle loading mechanism. The active pushing structure abuts against the other end of the particle loading mechanism. The active pushing structure is connected to the controller.

[0011] A better choice is that the active pressing structure includes a second direct-acting electric cylinder, a slider, a guide rail, a second sensor and a third push rod. The second direct-acting electric cylinder is connected to the slider, the slider is slidably connected to the guide rail, the guide rail is installed on the frame, the second direct-acting electric cylinder is connected to the third push rod through the second sensor, the third push rod corresponds to the particle loading mechanism, and both the second direct-acting electric cylinder and the second sensor are connected to the controller.

[0012] A better choice further includes a mirror mechanism, which is installed on the frame and corresponds to the particle loading mechanism.

[0013] A better choice further includes a mirror mechanism, which includes a first mirror structure and a second mirror structure. The first mirror structure is installed at the bottom of the frame and corresponds to the lower part of the particle loading mechanism. The second mirror structure is installed at the top of the frame and corresponds to the upper part of the particle loading mechanism.

[0014] The present invention has the following advantages and beneficial effects compared with the prior art:

[0015] Through the frame, the mirror mechanism, the energy storage synchronous release mechanism, the extrusion mechanism and the particle loading mechanism, the present invention can divide the entire loading area into several loading units, and each loading unit is applied with the same flexible force by the pressing block under the action of spring energy storage; the entire loading plane forms a flexible loading plane, which will not cause particle deformation, thus solving the problem of uneven force during the loading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the particle three-axis flexible loading testing machine of the present invention;

[0017] Figure 2 is a schematic diagram of the first mirror structure of the particle three-axis flexible loading testing machine of the present invention;

[0018] Figure 3 is a schematic diagram of the second mirror structure of the particle three-axis flexible loading testing machine of the present invention;

[0019] Figure 4 is a schematic diagram of the energy storage synchronous release mechanism of the particle three-axis flexible loading testing machine of the present invention;

[0020] Figure 5 is a schematic diagram of the release structure of the particle three-axis flexible loading testing machine of the present invention;

[0021] Figure 6 is a schematic diagram of the release structure of the particle three-axis flexible loading testing machine of the present invention;

[0022] Figure 7It is a schematic diagram of the pushing mechanism of the particle triaxial flexible loading test machine of the present invention;

[0023] Figure 8 It is a schematic diagram of the particle loading mechanism of the particle triaxial flexible loading test machine of the present invention;

[0024] Figure 9 It is a top view of the internal structure of the particle loading mechanism of the particle triaxial flexible loading test machine of the present invention;

[0025] Markings of each component in the drawings: 1 - frame; 2 - mirror mechanism; 21 - first mirror structure; 211 - first mirror frame; 212 - first turntable; 213 - first lens; 22 - second mirror structure; 221 - second mirror frame; 222 - second turntable; 223 - second lens; 3 - energy storage and synchronous release mechanism; 31 - energy storage structure; 311 - first direct-connected electric cylinder; 312 - first sensor; 313 - first push rod; 314 - first guide shaft; 315 - second push rod; 32 - release structure; 320 - bushing; 321 - servo motor; 322 - motor base; 323 - lifting cross beam; 324 - second guide shaft; 325 - first screw; 326 - slide rail mounting plate; 3261 - strip-shaped hole; 327 - first clamping plate; 3271 - first rack; 3272 - first limiting groove; 328 - second clamping plate; 3281 - second rack; 3282 - second limiting groove; 329 - synchronous gear; 4 - pushing mechanism; 41 - active pushing and pressing structure; 411 - second direct-connected electric cylinder; 412 - slider; 413 - guide rail; 414 - second sensor; 415 - third push rod; 42 - particle loading fixed plate; 5 - particle loading mechanism; 501 - first glass plate; 502 - first loading plate; 503 - second loading plate; 504 - pressing block; 505 - second screw; 506 - sleeve; 507 - conical stop; 508 - spring; 509 - second glass plate. Detailed implementation manners

[0026] The invention purpose of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments. The embodiments cannot be enumerated one by one here, but the implementation manners of the present invention are not limited to the following embodiments.

[0027] As Figure 1As shown in the figure, the particle three-axis flexible loading testing machine includes a frame 1, two energy storage and synchronous release mechanisms 3, a pushing mechanism 4, a particle loading mechanism 5, a mirror mechanism 2, and a controller; the mirror mechanism 2 includes a first mirror structure 21 and a second mirror structure 22. A through hole is provided at the center of the top of the frame 1, and the particle loading mechanism 5 is installed above the through hole. The second mirror structure 22 is installed directly above the particle loading mechanism 5 and is aligned with the loading area of the particle loading mechanism 5. The first mirror structure 21 is installed directly below the particle loading mechanism 5, and the first mirror structure 21 passes through the through hole and is aligned with the loading area of the particle loading mechanism 5. The two energy storage and synchronous release mechanisms 3 are respectively installed on the front and rear sides of the frame 1, and the two energy storage and synchronous release mechanisms 3 respectively correspond to the front and rear ends of the particle loading mechanism 5. The pushing mechanism 4 is installed on the left and right sides of the frame 1, and the pushing mechanism 4 clamps the left and right ends of the particle loading mechanism 5. The two energy storage and synchronous release mechanisms 3 and the pushing mechanism 4 are both connected to the controller.

[0028] The frame 1 plays a supporting role. The energy storage and synchronous release mechanism 3 is used to store and release energy for the spring 508 of the particle loading mechanism 5. The pushing mechanism 4 is used to clamp and fix the particle loading mechanism 5. The particle loading mechanism 5 is used to load particles with a flexible force. The mirror mechanism 2 facilitates the operator to observe the deformation of the particles from two angles, up and down. The first mirror structure 21 is used to observe the state of the particles in the loading area from directly below the particle loading mechanism 5. The second mirror structure 22 is used to observe the state of the particles in the loading area from directly above the particle loading mechanism 5. The controller is a computer and is used to control the pushing mechanism 4 and the energy storage and synchronous release mechanism 3.

[0029] As Figure 2 shown in the figure, the first mirror structure 21 includes a first mirror frame 211, a first turntable 212, and a first lens 213. The first mirror frame 211 is fixedly connected to the bottom of the frame 1. The first turntable 212 is rotatably installed on the first mirror frame 211 through the first mirror frame 211. The first lens 213 passes through the through hole and is aligned with the loading area of the particle loading mechanism 5.

[0030] As Figure 3 shown in the figure, the second mirror structure 22 includes a second mirror frame 221, a second turntable 222, and a second lens 223. The second mirror frame 221 is installed on the top of the frame 1, directly above the through hole (and also directly above the loading area of the particle loading mechanism 5). The second lens 223 is rotatably installed on the second mirror frame 221 through the second turntable 222. The second lens 223 is aligned directly above the loading area of the particle loading structure.

[0031] The first frame 211 is used to support the first lens 213, and the second frame 221 is used to support the second lens 223. The first turntable 212 is used to enable the first lens 213 to rotate; the second turntable 222 is used to enable the second lens 223 to rotate. Both the first lens 213 and the second lens 223 are convex lenses, which magnify the particles to facilitate the operator to observe the state of the particles.

[0032] As Figure 4 shown, each energy storage and synchronous release mechanism 3 includes a power storage structure 31 and a release structure 32. The power storage structures 31 are respectively installed at the front and rear ends of the frame 1. The release structure 32 is slidably connected to the power storage structure 31. The power storage structure 31 can pull the release structure 32 to achieve forward and backward movement. The release structure 32 can hold or release the tapered head 507 of the particle loading mechanism 5. Both the power storage structure 31 and the release structure 32 are controlled by the controller. The power storage structure 31 is used to drive the release structure 32 to move from the inside to the outside. The release structure 32 is used to release or hold the tapered head 507 of the particle loading mechanism 5.

[0033] As Figure 4 shown, each power storage structure 31 includes a first direct-acting electric cylinder 311, a first sensor 312, a first push rod 313, two first guide shafts 314 and a second push rod 315. The first direct-acting electric cylinder 311 is installed at the front end or the rear end of the frame 1. The rod head of the first direct-acting electric cylinder 311 is connected to the middle of the first push rod 313 through the first sensor 312. The two ends of the first push rod 313 are respectively connected to the two ends of the second push rod 315 through two first guide shafts 314. The two bushings 320 of the release structure 32 are respectively slidably connected to the two first guide shafts 314. Both the first direct-acting electric cylinder 311 and the first sensor 312 are controlled by the controller.

[0034] The first direct-acting electric cylinder 311 provides power for the outward movement of the release structure 32. The first sensor 312 is a tension sensor, which is used to detect the tension received by the release structure 32. The first push rod 313 is used to pull the second push rod 315. The first guide shaft 314 is used to guide the movement direction of the release structure 32. The second push rod 315 is used to limit the release structure 32.

[0035] As Figure 5 and 6As shown in the figure, each release structure 32 includes two bushings 320, a servo motor 321, a motor base 322, a lifting crossbeam 323, two second guide shafts 324, a first screw 325, a slide rail mounting plate 326, a first clamping plate 327, a second clamping plate 328 and two synchronous gears 329. The servo motor 321 is installed on the top of the motor base 322, and both ends of the motor base 322 are installed on the top of the slide rail mounting plate 326 through two second guide shafts 324. Both ends of the lifting crossbeam 323 are slidably connected to the two second guide shafts 324 respectively. The rotating shaft of the servo motor 321 is connected to the upper end of the first screw 325, and the other end of the first screw 325 is threadedly connected to the lifting crossbeam 323. The side surface of the lifting crossbeam 323 is connected to the top of the first clamping plate 327. Both ends of the first clamping plate 327 are slidably installed on the rear side surface of the slide rail mounting plate 326. A first rack 3271 is provided at both ends of the first clamping plate 327 respectively, and a plurality of first limit grooves 3272 are provided in the middle of the bottom of the first clamping plate 327. The second clamping plate 328 is slidably installed up and down on the rear side surface of the slide rail mounting plate 326. A second rack 3281 is provided at both ends of the second clamping plate 328 respectively, and a plurality of second limit grooves 3282 are provided in the middle of the top of the second clamping plate 328. The plurality of first limit grooves 3272 and the plurality of second limit grooves 3282 correspond to each other one by one, and the plurality of first limit grooves 3272 and the plurality of second limit grooves 3282 are used to limit the conical stop 507. The two synchronous gears 329 are rotatably installed on the side surface of the slide rail mounting plate 326, between the first rack 3271 and the second rack 3281. The first rack 3271 is engaged with the second rack 3281 through the synchronous gear 329. The two bushings 320 are respectively installed at both ends of the slide rail mounting plate 326. The two first guide shafts 314 of the energy storage structure 31 are respectively slidably connected to the two bushings 320. The servo motor 321 is controlled by the controller.

[0036] The bushing 320 is used to reduce the friction between the first guide shaft 314 and the slide rail mounting plate 326. The servo motor 321 provides power for the up and down sliding of the first clamping plate 327. The motor base 322 is used to install the servo motor 321. The lifting crossbeam 323 plays a transmission role and cooperates with the first screw 325 to realize the up and down movement of the first clamping plate 327. The second guide shaft 324 provides guidance for the up and down movement of the lifting crossbeam 323. The first screw 325 is used to drive the lifting crossbeam 323 to move up and down. The slide rail mounting plate 326 is used to install the second guide shaft 324, the synchronous gear 329 and the second clamping plate 328. The cooperation between the first clamping plate 327 and the second clamping plate 328 realizes the locking and release of a plurality of conical stops 507. The synchronous gear 329 realizes the synchronous opening and closing of the first clamping plate 327 and the second clamping plate 328.

[0037] As Figure 1 and 7As shown, the pushing mechanism 4 includes an active pressing structure 41 and two particle loading fixed plates 42. The active pressing structure 41 includes a second direct-connected electric cylinder 411, four sliders 412, two guide rails 413, a second sensor 414, and a third push rod 415. The two particle loading fixed plates 42 are butt-jointed and installed at the left end of the frame 1, and the active pressing structure 41 is installed at the right end of the frame 1. The two particle loading fixed plates 42 are spliced into a stop bar. The left end of the stop bar abuts against the inner side of the top of the frame 1, the right end of the stop bar abuts against the left end of the particle loading mechanism 5, and the active pressing structure 41 abuts against the right end of the particle loading mechanism 5. The active pressing structure 41 is connected to the controller. The two particle loading fixed plates 42 are spliced into a stop bar. Four sliders 412 are installed at the left end of the second direct-connected electric cylinder 411, and the four sliders 412 are respectively slidably connected to the two guide rails 413. The two guide rails 413 are both installed at the right end of the top of the frame 1, and the two guide rails 413 are parallel to each other. The second direct-connected electric cylinder 411 is controlled by the controller. The rod head of the second direct-connected electric cylinder 411 is connected to the right end of the second sensor 414, the left end of the second sensor 414 is connected to the right end of the third push rod 415, and the left end of the third push rod 415 corresponds to the right end of the first loading plate 502. The second sensor 414 is connected to the controller.

[0038] The active pressing structure 41 is used to actively press the right end of the particle loading mechanism 5. The particle loading fixed plate 42 is used to support the left end of the particle loading mechanism 5. The second direct-connected electric cylinder 411 provides power for the third push rod 415 to press the first loading plate 502 of the particle recording mechanism. The slider 412 and the guide rail 413 can adjust the position where the third push rod 415 is located. The second sensor 414 is a pressure sensor and is used to determine whether the particle loading mechanism 5 is pressed tightly. The third push rod 415 is used to press the first loading plate 502 of the particle loading mechanism 5.

[0039] As Figure 8 and 9As shown, the particle loading mechanism 5 includes a first glass plate 501, a second glass plate 509, a first loading plate 502, a second loading plate 503, and multiple flexible force application components. Each flexible force application component includes a pressing block 504, a second screw 505, a sleeve 506, a tapered stop 507, and a spring 508. A through hole is provided at the center of the top of the frame 1. The first glass plate 501 is installed at the center of the top of the frame 1 through bolts, that is, above the through hole. The second glass plate 509 is installed directly above the first glass plate 501, and there is a gap between the first glass plate 501 and the second glass plate 509. The first loading plate 502 is located at the right end of the gap, and the second loading plate 503 is located at the left end of the gap. Multiple pressing blocks 504 are arranged linearly to form two columns of pressing blocks 504. One column of pressing blocks 504 is located at the front end of the gap, and the other column of pressing blocks 504 is located at the rear end of the gap. Multiple pressing blocks 504 are respectively connected to one end of multiple second screws 505. The other ends of multiple second screws 505 pass through the strip-shaped holes 3261 of the slide rail mounting plate 326 and are connected to multiple tapered stops 507. When released, the tapered stops 507 can also pass through the strip-shaped holes 3261. Multiple sleeves 506 and multiple springs 508 are respectively sleeved on multiple second screws 505. One ends of multiple springs 508 respectively abut against multiple pressing blocks 504, the other ends of multiple springs 508 respectively abut against one ends of multiple sleeves 506, and the other ends of multiple sleeves 506 abut against the second push rod 315 of the energy storage and synchronous release mechanism 3. The first glass plate 501 and the second glass plate 509 are arranged parallel to each other vertically, the first loading plate 502 and the second loading plate 503 are arranged opposite to each other left and right, and the two columns of pressing blocks 504 are arranged opposite to each other front and back. The first glass plate 501, the second glass plate 509, the first loading plate 502, the second loading plate 503, and the two columns of pressing blocks 504 enclose a loading area.

[0040] The first glass plate 501 is used to carry particles and facilitate the operator to observe the changes of particles. The second glass plate 509 is used to limit the particles from leaving the loading area and also facilitate the operator to observe the changes of particles. The first loading plate 502 and the second loading plate 503 are used to limit the particles from leaving the loading area and to define the left and right positions of the loading area. The pressing block 504 is used to apply a flexible force to the particles. The screw 325 plays a transmission role. The sleeve 506 is used to push the spring 508 to compress the spring 508. The tapered stop 507 is used to pull the screw 325 and play a limiting role. The spring 508 provides kinetic energy for the pushing of the pressing block 504.

[0041] Description of the working process of the particle triaxial flexible loading testing machine: First, lock the particle loading mechanism 5 on the frame 1 through the pushing mechanism 4 to prevent it from moving left and right. At the same time, the controller collects the thrust of the second sensor 414. Under the action of the servo motor 321 and the synchronous gear 329 of the release structure 32, the first clamping plate 327 and the second clamping plate 328 move synchronously to realize the opening of the first clamping plate 327 and the second clamping plate 328. Then, the controller controls the energy storage structure 31 to move from the outside to the inside, and the conical stop 507 of the particle loading mechanism 5 enters between the first clamping plate 327 and the second clamping plate 328. The servo motor 321 of the release structure 32 closes the first clamping plate 327 and the second clamping plate 328, and the first clamping plate 327 and the second clamping plate 328 lock multiple conical stops 507. Under the action of the first direct-connected electric cylinder 311 of the energy storage structure 31, the second push rod 315 pulls the release structure 32 to move from inside the frame 1 to outside the frame 1, completing the spring 508 energy storage of the particle loading mechanism 5, and the controller collects the pulling force through the first sensor 312. When the pulling force value reaches the target value, the first clamping plate 327 moves upward under the action of the servo motor 321 of the release structure 32, and at the same time, under the synchronous action of the synchronous gear 329, the synchronous gear 329 drives the second clamping plate 328 to move downward. The conical stop 507 of the particle loading mechanism 5 is no longer restricted by the first clamping plate 327 and the second clamping plate 328, and under the action of the spring 508, the conical stop 507 moves from outside the frame to inside the frame. Driven by the second screw 505, the two rows of pressing blocks 504 of the particle loading mechanism 5 move simultaneously closer to the middle of the loading area, and the two rows of pressing blocks 504 generate a flexible thrust to push the particles. The operator can observe the state of the particles below through the first mirror structure 21, and the operator can also observe the state of the particles above through the second mirror structure 22.

[0042] The above specific implementation manners are the preferred embodiments of the present invention and cannot limit the present invention. Any other changes or other equivalent replacement methods made without departing from the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. Particle triaxial flexible loading testing machine, characterized in that: It includes a frame, two energy storage and synchronous release mechanisms, a pushing mechanism, a particle loading mechanism and a controller. The two energy storage and synchronous release mechanisms, the pushing mechanism and the particle loading mechanism are all installed on the frame. The two energy storage and synchronous release mechanisms are respectively connected to the front and rear ends of the particle loading mechanism. The pushing mechanism clamps the left and right ends of the particle loading mechanism. The energy storage and synchronous release mechanism and the pushing mechanism are both connected to the controller; The energy storage and synchronous release mechanism includes an energy storage structure and a release structure. One end of the release structure is connected to the particle loading mechanism, and the other end of the release structure is connected to the energy storage structure. The energy storage structure is installed on the frame, and the energy storage structure and the release structure are both connected to the controller; The energy storage structure includes a first direct-acting electric cylinder, a first sensor, a first push rod, a first guide shaft and a second push rod. The first direct-acting electric cylinder is installed on the frame. The first direct-acting electric cylinder is connected to the first push rod through the first sensor. The two ends of the first push rod are respectively connected to the two ends of the second push rod through the first guide shaft. The two ends of the release structure are slidably connected to the two first guide shafts. The first direct-acting electric cylinder and the first sensor are both connected to the controller; The particle loading mechanism includes a first glass plate, a second glass plate, a first loading plate, a second loading plate and two rows of flexible force application components. The first glass plate and the second glass plate are both installed on the frame. The first glass plate and the second glass plate are arranged in parallel. The first loading plate and the second loading plate are both located between the first glass plate and the second glass plate. The first loading plate and the second loading plate are arranged oppositely. The first loading plate and the second loading plate both correspond to the pushing mechanism. The two rows of flexible force application components are arranged oppositely. The two rows of flexible force application components respectively correspond to the two energy storage and synchronous release mechanisms. The first glass plate, the second glass plate, the first loading plate, the second loading plate and the two rows of flexible force application components enclose a loading area; The flexible force application component includes a pressing block, a screw rod, a sleeve, a conical stop and a spring. The pressing block is connected to the conical stop through the screw rod. The spring and the sleeve are both sleeved on the screw rod. One end of the sleeve and the conical stop both match the energy storage and synchronous release mechanism. The other end of the sleeve abuts against the first end of the spring. The other end of the spring abuts against the pressing block. The pressing blocks are linearly arranged to form two rows of pressing blocks, and the two rows of pressing blocks are arranged oppositely.

2. The particle three-axis flexible loading testing machine according to claim 1, wherein: The release structure includes a bushing, a servo motor, a motor base, a lifting crossbeam, two second guide shafts, a screw, a slide rail mounting plate, a first clamping plate, a second clamping plate and a synchronous gear. The servo motor is installed on the motor base. Both ends of the motor base are installed on the top of the slide rail mounting plate through the two second guide shafts. Both ends of the lifting crossbeam are respectively slidably connected to the two second guide shafts. The servo motor is threadedly connected to the lifting crossbeam through the screw. The lifting crossbeam is connected to the top of the first clamping plate. Both the first clamping plate and the second clamping plate are slidably connected to the slide rail mounting plate. First racks are provided at both ends of the first clamping plate, and second racks are provided at both ends of the second clamping plate. The first racks are meshed with the second racks through the synchronous gear. Both ends of the slide rail mounting plate are respectively slidably connected to the energy storage structure through the bushing. The servo motor is connected to the controller.

3. The particle triaxial flexible loading testing machine according to claim 1, wherein: The pushing mechanism includes an active pushing structure and a particle loading fixed plate. Both the particle loading fixed plate and the active pushing structure are installed on the frame. The particle loading fixed plate abuts against one end of the particle loading mechanism, and the active pushing structure abuts against the other end of the particle loading mechanism. The active pushing structure is connected to the controller.

4. The particle three-axis flexible loading testing machine according to claim 3, wherein: The active pushing structure includes a second direct-connect electric cylinder, a slider, a guide rail, a second sensor and a third push rod. The second direct-connect electric cylinder is connected to the slider. The slider is slidably connected to the guide rail. The guide rail is installed on the frame. The second direct-connect electric cylinder is connected to the third push rod through the second sensor. The third push rod corresponds to the particle loading mechanism. Both the second direct-connect electric cylinder and the second sensor are connected to the controller.

5. The particle triaxial flexible loading testing machine according to claim 1, wherein: It further includes a mirror mechanism. The mirror mechanism is installed on the frame and corresponds to the particle loading mechanism.

6. The particle triaxial flexible loading testing machine according to claim 5, characterized in that: It further includes a mirror mechanism. The mirror mechanism includes a first mirror structure and a second mirror structure. The first mirror structure is installed at the bottom of the frame and corresponds to the lower part of the particle loading mechanism. The second mirror structure is installed at the top of the frame and corresponds to the upper part of the particle loading mechanism.

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