A rolling stone impact test device

Abstract

The present invention provides a rolling stone impact test device, which relates to the technical field of geological disaster simulation tests. The device includes a support mechanism, a swinging mechanism, a stone blocking mechanism, two groups of acceleration sensing mechanisms, and two groups of opening members. The support mechanism includes a tower crane, a hoisting assembly, and an impact ball suspended on the hoisting assembly. The swinging mechanism includes a support plate, a support frame, and a pulling assembly. The stone blocking mechanism includes a stone blocking wall and a soil cushion layer. The two groups of acceleration sensing mechanisms are installed on both sides of the impact ball. The acceleration sensing mechanism includes an installation frame body and an acceleration sensor. One side of the installation frame body is provided with a through opening and a blocking assembly for blocking the through opening. The opening member is located between the stone blocking mechanism and the swinging mechanism. When the impact ball collides with the stone blocking mechanism, the opening member can drive the blocking assembly to move to open the through opening. After the first impact in the present invention, the acceleration sensor is separated from the impact ball, avoiding the influence of repeated impacts between the impact ball and the stone blocking wall after the impact ball rebounds on the service life of the acceleration sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of geological disaster simulation tests, and more particularly to a rockfall impact test device. Background Art

[0002] The existing slope rockfall impact test device is a device used to simulate the impact of rockfalls on slope protection structures or slopes. Its main purpose is to provide a scientific basis for the safety assessment, design optimization, and research on protection measures of slope engineering. This device generally consists of a simulated rockfall, a swing mechanism, an impact target, a monitoring and measurement system, and a data recording and analysis system. Among them, the simulated rockfall usually uses spherical impact balls with different diameters. The swing mechanism adjusts the release height, speed, and direction of the impact ball to achieve the swinging motion of the impact ball and make it impact the impact target. The impact target is the direct object of the impact ball, and usually uses a rock retaining wall with a soil cushion layer. A pressure sensor is installed on the back of the rock retaining wall to record the impact force generated by the impact ball at the moment of impact. During the test, the device monitors the movement trajectory, speed, impact force of the simulated rockfall, and the deformation and damage of the target structure through acceleration sensors and pressure sensors. The relevant data is processed by the data recording and analysis system to evaluate the performance of the protection structure and the impact of the impact ball.

[0003] The acceleration sensor is usually installed on the impact ball to detect the acceleration change of the impact ball during the swinging process in real time and use it as the acceleration generated when the impact ball impacts the impact target. Since the impact ball will rebound after hitting the rock retaining wall and continue to impact the rock retaining wall after the rebound, during the long-term test process, the impact force of this repeated impact will often cause irreversible damage to the acceleration sensor, resulting in a significant impact on the detection stability and service life of the entire test device. Summary of the Invention

[0004] The purpose of the present invention is to provide a rockfall impact test device that can detach the acceleration sensor from the impact ball after the impact ball impacts the rock retaining wall, thereby avoiding the impact of the repeated impact of the impact ball with the rock retaining wall after the rebound on the service life of the acceleration sensor.

[0005] The present invention is achieved through the following technical solutions: A rockfall impact test device, comprising: a support mechanism, the support mechanism includes a tower crane, and one end of the tower crane is provided with a hoisting assembly, and an impact ball is suspended at the bottom of the hoisting assembly;

[0006] A swing mechanism, the swing mechanism includes a support plate, a support frame is provided on the support plate, and a pulling assembly for pulling the impact ball to a horizontal state is provided at the top of the support frame;

[0007] A rock blocking mechanism, the rock blocking mechanism includes a rock blocking wall, and a soil cushion layer is arranged on one side of the rock blocking wall facing the swinging mechanism;

[0008] Two groups of acceleration sensing mechanisms, the two groups of acceleration sensing mechanisms are symmetrically arranged on both sides of the impact ball. The acceleration sensing mechanism includes a mounting frame body and an acceleration sensor arranged in the mounting frame body. A through opening for the acceleration sensor to move out and a blocking component for blocking the through opening are arranged on one side of the mounting frame body;

[0009] Two groups of opening members, the opening members are located between the rock blocking mechanism and the swinging mechanism, and a gap for the impact ball to pass through is left between the two groups of opening members. When the impact ball collides with the rock blocking mechanism, the opening members can drive the blocking component to move to open the through opening.

[0010] Further, the blocking component includes a blocking block and an opening and closing member. The blocking block is slidably arranged in the mounting frame body. The blocking block includes a first support block and a second support block. The length direction of the first support block is consistent with the radial direction of the acceleration sensor, and the second support block is arranged on the surface of the first support block facing the acceleration sensor; the opening and closing member includes an opening and closing gear, a rotating shaft and an opening and closing rod. The rotating shaft is rotatably connected in the mounting frame body, the opening and closing gear is coaxially connected to the rotating shaft, the opening and closing rod is radially arranged on the rotating shaft and extends outside the mounting frame body, and a rack meshing with the opening and closing gear is arranged on the surface of the first support block away from the acceleration sensor.

[0011] Further, when the pulling component pulls the impact ball to the highest stroke position, the opening and closing rod is in a horizontal state; when the impact ball moves to the gap position between the two groups of opening members, the opening and closing rod is in a vertical state and abuts against the opening member; when the impact ball moves to collide with the rock blocking mechanism, the opening and closing rod drives the rotating shaft to rotate to drive the opening and closing gear to rotate.

[0012] Further, a convex block is arranged at one end of the rotating shaft away from the opening and closing rod, and a torsion spring is sleeved outside the rotating shaft. One end of the torsion spring is fixedly connected to the convex block, and the other end is fixedly connected to the inside of the mounting frame body. When the torsion spring is in the original state, the first support block blocks the through opening, and the second support block abuts against the end face of the acceleration sensor.

[0013] Further, receiving mechanisms for receiving the acceleration sensors are arranged on both sides of the rock blocking mechanism. The receiving mechanism includes a first slide rail, a support rod is arranged on the first slide rail, a receiving box is arranged at the top of the support rod, an opening is arranged on the side of the receiving box facing the swinging mechanism, when the impact ball collides with the rock blocking mechanism, the mounting frame body moves into the receiving box, and a flexible buffer pad is arranged in the receiving box.

[0014] Further, the hoisting assembly includes a hoisting frame, on which a hoisting motor is provided. A winding disc is coaxially connected to the output shaft of the hoisting motor. A steel rope is wound around the winding disc. A connecting ring is provided at one end of the steel rope away from the winding disc. A rope groove for the connecting ring to be sleeved into is circumferentially formed on the impact ball; an indicating mechanism is provided at the bottom of the hoisting frame. The indicating mechanism includes a bottom rod, a central column is provided in the middle of the bottom rod, a rope cavity for the steel rope to pass through is formed on the central column, and indicating components are provided on both sides of the central column on the bottom rod.

[0015] Further, the indicating component includes a support block, an indicating rope is fixedly connected to the bottom of the support block, an indicating rod is provided at one end of the indicating rope away from the support block, and an indicating block is provided at one end of the indicating rod away from the indicating rope.

[0016] Further, the support block is slidably arranged on the bottom rod, and a fastening bolt for pressing tightly against the bottom rod is provided on the support block; the indicating rod is a telescopic rod, which includes an outer rod and an inner rod slidably connected inside the outer rod. A positioning pin is provided on the outer rod, and a plurality of positioning holes for the positioning pin to be inserted are distributed along the length direction of the inner rod.

[0017] Further, the support rod includes a first support rod and a second support rod. A first sliding seat is provided at the bottom of the first support rod and is slidably connected to the first slide rail through the first sliding seat. The second support rod is slidably connected to the top of the first support rod along the length direction of the first support rod. A first tightening bolt for fixing the position of the second support rod is provided on the first support rod.

[0018] Further, the opening member includes a second slide rail, an opening plate is slidably arranged on the second slide rail. The opening plate includes a first support plate and a second support plate. A second sliding seat is provided at the bottom of the first support plate and is slidably connected to the second slide rail through the second sliding seat. The second support plate is slidably connected to the top of the first support plate along the length direction of the first support plate. A second tightening bolt for fixing the position of the second support plate is provided on the first support plate.

[0019] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0020] 1. In the present invention, by placing the acceleration sensor in the installation frame body, before the impact ball impacts the boulder retaining wall, the blocking component limits the position of the acceleration sensor in the installation frame body. When the impact ball impacts the boulder retaining wall, under the action of the opening member, the blocking component opens the through opening so that the acceleration sensor moves out of the installation frame body, thereby avoiding the impact of the repeated impact between the impact ball and the boulder retaining wall after the impact ball rebounds on the service life of the acceleration sensor.

[0021] 2. Before the test, the present invention simulates the movement trajectory of the installation frame through the indicating mechanism provided at the bottom of the hoisting frame, so that the storage mechanism can be adjusted to an appropriate position in advance to ensure that the acceleration sensor can fall into the storage mechanism after being removed from the installation frame, thereby avoiding damage caused by the acceleration sensor falling to the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structural schematic diagram when the swinging mechanism of the present invention pulls the impact ball to the initial position of the swinging motion;

[0023] Figure 2 The overall structural schematic diagram when the impact ball of the present invention contacts the soil cushion layer;

[0024] Figure 3 The structural schematic diagram of the hoisting assembly, impact ball and pulling assembly of the present invention;

[0025] Figure 4 The structural schematic diagram of the acceleration sensing mechanism on the impact ball when the swinging mechanism of the present invention pulls the impact ball to the initial position of the swinging motion;

[0026] Figure 5 The structural schematic diagram of the blocking assembly and acceleration sensor in the initial state of the present invention;

[0027] Figure 6 The structural schematic diagram of the impact ball, stone blocking mechanism, opening member and storage mechanism when the impact ball of the present invention contacts the soil cushion layer;

[0028] Figure 7 The structural schematic diagram of the acceleration sensing mechanism on the impact ball when the impact ball of the present invention contacts the soil cushion layer;

[0029] Figure 8 The structural schematic diagram of the blocking block, opening and closing member and acceleration sensor when the blocking assembly of the present invention opens the through port;

[0030] Figure 9 The installation structural schematic diagram of the indicating mechanism of the present invention;

[0031] Figure 10 The structural schematic diagram of the indicating component of the present invention;

[0032] Figure 11 The structural schematic diagram of the storage mechanism of the present invention;

[0033] Reference numerals: 1 - support mechanism, 11 - tower crane, 12 - hoisting assembly, 121 - hoisting frame, 122 - hoisting motor, 123 - wire winding disc, 124 - steel wire rope, 125 - connecting ring, 13 - impact ball, 131 - rope groove, 132 - lifting ring, 2 - swinging mechanism, 21 - support plate, 22 - support frame, 221 - hooked hanging rope, 23 - pulling assembly, 231 - winch, 232 - hook, 3 - stone blocking mechanism, 31 - stone blocking wall, 32 - soil cushion layer, 4 - acceleration sensing mechanism, 41 - mounting frame, 411 - through port, 42 - acceleration sensor, 43 - blocking assembly, 431 - blocking block, 4311 - first support block, 4312 - second support block, 4313 - rack, 432 - opening and closing member, 4321 - opening and closing gear, 4322 - rotating shaft, 4323 - opening and closing rod, 4324 - convex block, 4325 - torsion spring, 5 - opening member, 51 - second slide rail, 52 - opening plate, 521 - first support plate, 522 - second support plate, 523 - second slide block, 524 - second tightening bolt, 6 - storage mechanism, 61 - first slide rail, 62 - support rod, 621 - first support rod, 622 - second support rod, 623 - first slide block, 624 - first tightening bolt, 63 - storage box, 631 - opening, 632 - flexible buffer pad, 7 - indicating mechanism, 71 - bottom rod, 72 - central column, 73 - indicating assembly, 731 - support block, 7311 - fastening bolt, 732 - indicating rope, 733 - indicating rod, 7331 - outer rod, 7332 - inner rod, 7333 - positioning pin, 734 - indicating block. Detailed implementation manners

[0034] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment

[0037] The following is a reference Figures 1-11 As shown, and further described in combination with specific embodiments, this embodiment provides a rolling stone impact test device. Refer to Figure 1 、 Figure 2As shown in the figure, it includes a support mechanism 1, a swinging mechanism 2, a rock-blocking mechanism 3, two groups of acceleration sensing mechanisms 4 and two groups of opening members 5. The support mechanism 1 includes a tower crane 11. At one end of the tower crane 11, a hoisting assembly 12 is provided. At the bottom of the hoisting assembly 12, an impact ball 13 is suspended. The swinging mechanism 2 includes a support plate 21. On the support plate 21, a support frame 22 is provided. At the top of the support frame 22, a pulling assembly 23 is provided for pulling the impact ball 13 to the initial position of the swinging motion. The rock-blocking mechanism 3 includes a rock-blocking wall 31. On one side of the rock-blocking wall 31 facing the swinging mechanism 2, a soil cushion layer 32 is provided. The two groups of acceleration sensing mechanisms 4 are symmetrically arranged on both sides of the impact ball 13. The acceleration sensing mechanism 4 includes a mounting frame body 41 and an acceleration sensor 42 arranged inside the mounting frame body 41. Adjust the hoisting assembly 12 to hoist the impact ball 13 to a specified height, then use the pulling assembly 23 to pull the impact ball 13 to the initial position of the swinging motion, and then release the connection between the pulling assembly 23 and the impact ball 13, so that the impact ball 13 freely swings under its own gravity from the specified height. When the impact ball 13 impacts the soil cushion layer 32, the pressure sensor on the rock-blocking wall 31 records the impact force generated by the impact ball 13 at the moment of impact. The acceleration sensor 42 simulates and monitors the motion trajectory and acceleration of the impact ball 13. Finally, it is processed by a data recording and analysis system to evaluate the performance of the rock-blocking wall 31 and the impact of the impact ball 13.

[0038] Refer to Figure 3 As shown in the figure, the hoisting assembly 12 includes a hoisting frame 121. On the hoisting frame 121, a hoisting motor 122 is fixedly installed. On the output shaft of the hoisting motor 122, a wire winding disc 123 is coaxially connected. A steel wire rope 124 is wound around the wire winding disc 123. At one end of the steel wire rope 124 away from the wire winding disc 123, a connection ring 125 is provided. On the impact ball 13, a rope groove 131 is circumferentially opened for the connection ring 125 to be sleeved into. By starting the hoisting motor 122 to drive the wire winding disc 123 to rotate, the steel wire rope 124 can be wound onto the wire winding disc 123 or unwound from the wire winding disc 123, so that the height of the impact ball 13 can be changed according to the requirements of the test. The pulling assembly 23 includes a winch 231. The winch 231 is fixedly installed on the support frame 22. At the output end of the winch 231, a hook 232 is configured. On the impact ball 13, a hanging ring 132 is provided for the hook 232 to be hung on. Hanging the hook 232 on the hanging ring 132 can pull the impact ball 13 through the winch 231 until the impact ball 13 is pulled to the initial position of the swinging motion, that is, the position when the steel wire rope 124 of the hoisting assembly 12 is in a horizontal state.

[0039] Refer to Figures 4-8As shown, one side of the installation frame body 41 is provided with a through port 411 for the acceleration sensor 42 to move out and a blocking assembly 43 for blocking the through port 411; receiving mechanisms 6 for receiving the acceleration sensor 42 are provided on both sides of the rock blocking mechanism 3. The opening member 5 is located between the rock blocking mechanism 3 and the swinging mechanism 2, and a gap for the impact ball 13 to pass through is left between the two opening members 5. When the impact ball 13 collides with the rock blocking mechanism 3, the opening member 5 can drive the blocking assembly 43 to move to open the through port 411, so that the acceleration sensor 42 can move out of the through port 411 under the action of inertia. After the acceleration sensor 42 moves out, the receiving mechanism 6 plays a role in buffering and receiving, preventing the acceleration sensor 42 from falling to the ground or colliding with the rock blocking wall 31 and causing damage.

[0040] Refer to Figure 5 As shown, the blocking assembly 43 includes a blocking block 431 and an opening and closing member 432. The blocking block 431 is slidably arranged in the installation frame body 41. The blocking block 431 includes a first support block 4311 and a second support block 4312. The length direction of the first support block 4311 is consistent with the radial direction of the acceleration sensor 42, and the second support block 4312 is arranged on the surface of the first support block 4311 facing the acceleration sensor 42. The opening and closing member 432 includes an opening and closing gear 4321, a rotating shaft 4322, and an opening and closing rod 4323. The rotating shaft 4322 is rotatably connected in the installation frame body 41. The opening and closing gear 4321 is coaxially connected to the rotating shaft 4322. The opening and closing rod 4323 is radially arranged on the rotating shaft 4322 and extends outside the installation frame body 41. A rack 4313 meshing with the opening and closing gear 4321 is arranged on the surface of the first support block 4311 away from the acceleration sensor 42. When the pulling assembly 23 pulls the impact ball 13 to the highest stroke position, the opening and closing rod 4323 is in a horizontal state; when the impact ball 13 moves to the gap position between the two opening members 5, the opening and closing rod 4323 is in a vertical state and abuts against the opening member 5; when the impact ball 13 moves to collide with the rock blocking mechanism 3, the opening and closing rod 4323 drives the rotating shaft 4322 to rotate to drive the opening and closing gear 4321 to rotate. During the rotation of the opening and closing gear 4321, the rotating shaft 4322 is driven to rotate synchronously, so as to drive the first support block 4311 and the second support block 4312 to move through the rack 4313 to open the through port 411 of the installation frame body 41, so that the acceleration sensor 42 moves out of the installation frame body 41 and enters the receiving mechanism 6.

[0041] Refer to Figure 5As shown, a convex block 4324 is provided at one end of the rotating shaft 4322 away from the opening and closing rod 4323. A torsion spring 4325 is sleeved outside the rotating shaft 4322. One end of the torsion spring 4325 is fixedly connected to the convex block 4324, and the other end is fixedly connected inside the mounting frame 41. When the torsion spring 4325 is in its original state, the first support block 4311 blocks the through port 411, and the second support block 4312 abuts against the end face of the acceleration sensor 42, so as to prevent the first support block 4311 from moving and opening the through port 411 during the movement of the impact ball 13, resulting in the acceleration sensor 42 falling out of the mounting frame 41.

[0042] Referring to Figure 9 , Figure 10 As shown, an indicating mechanism 7 is provided at the bottom of the hoisting frame 121. The indicating mechanism 7 includes a bottom rod 71. A central column 72 is provided in the middle of the bottom rod 71. A rope cavity for the steel rope 124 to pass through is opened on the central column 72. Indicating components 73 are provided on both sides of the central column 72 on the bottom rod 71. The indicating component 73 includes a support block 731. An indicating rope 732 is fixedly connected to the bottom of the support block 731. An indicating rod 733 is provided at one end of the indicating rope 732 away from the support block 731. An indicating block 734 is provided at one end of the indicating rod 733 away from the indicating rope 732. A hook hanging rope 221 is provided at one end of the support frame 22 close to the hoisting component 12. By hanging the rope hook on the hanging rope 221 on the indicating block 734 and keeping the indicating block 734 in a horizontal state, then loosening the rope hook and allowing the indicating block 734 to swing with the indicating rope 732 and the indicating rod 733, it can be judged whether the mounting frame 41 and the acceleration sensor 42 can enter the receiving mechanism 6 during the test by observing whether the indicating block 734 can enter the receiving mechanism 6, so that the receiving part of the receiving mechanism 6 can be adjusted to an appropriate position in advance to ensure that the acceleration sensor 42 can be received.

[0043] Referring to Figure 10 As shown, the support block 731 is slidably arranged on the bottom rod 71. A fastening bolt 7311 for pressing against the bottom rod 71 is provided on the support block 731, so as to facilitate adjusting the distance between the two indicating components 73 according to the diameter of the impact ball 13 and improve the applicability of the overall structure; the indicating rod 733 is a telescopic rod. The indicating rod 733 includes an outer rod 7331 and an inner rod 7332 slidably connected inside the outer rod 7331. A positioning pin 7333 is provided on the outer rod 7331. A plurality of positioning holes for the positioning pin 7333 to be inserted are distributed along the length direction of the inner rod 7332. By adjusting the insertion amount of the inner rod 7332 into the outer rod 7331 and inserting the positioning pin 7333 into the positioning holes at corresponding positions, the length of the indicating rod 733 can be adjusted, so as to adapt to different test heights.

[0044] Referring to Figure 11As shown, the storage mechanism 6 includes a first slide rail 61. A support rod 62 is provided on the first slide rail 61. A storage box 63 is arranged at the top of the support rod 62. An opening 631 is arranged on one side of the storage box 63 facing the swing mechanism 2. When the impact ball 13 collides with the stone-blocking mechanism 3, the mounting frame body 41 moves into the storage box 63. A flexible buffer pad 632 is arranged in the storage box 63 to buffer the acceleration sensor 42 and further protect the acceleration sensor 42. The support rod 62 includes a first support rod 621 and a second support rod 622. A first sliding seat 623 is arranged at the bottom of the first support rod 621 and is slidably connected to the first slide rail 61 through the first sliding seat 623. The second support rod 622 is slidably connected to the top of the first support rod 621 along the length direction of the first support rod 621. A first tightening bolt 624 for fixing the position of the second support rod 622 is arranged on the first support rod 621. By changing the insertion depth of the second support rod 622 in the first support rod 621 and fixing the relative position of the second support rod 622 and the first support rod 621 through the first tightening bolt 624, the height of the support rod 62 can be adjusted so that the storage box 63 can adapt to different test heights.

[0045] Referring to Figure 6 As shown, the opening member 5 includes a second slide rail 51. An opening plate 52 is slidably arranged on the second slide rail 51. The opening plate 52 includes a first support plate 521 and a second support plate 522. A second sliding seat 523 is arranged at the bottom of the first support plate 521 and is slidably connected to the second slide rail 51 through the second sliding seat 523. The second support plate 522 is slidably connected to the top of the first support plate 521 along the length direction of the first support plate 521. A second tightening bolt 524 for fixing the position of the second support plate 522 is arranged on the first support plate 521. By changing the insertion depth of the second support plate 522 in the first support plate 521 and fixing the relative position of the second support plate 522 and the first support plate 521 through the second tightening bolt 524, the height of the opening plate 52 can be adjusted to adapt to different test heights.

[0046] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rolling stone impact test device, characterized in that: include: A support mechanism (1), the support mechanism (1) comprising a tower crane (11), one end of the tower crane (11) being provided with a lifting assembly (12), and a collision ball (13) being suspended at the bottom of the lifting assembly (12); A swing mechanism (2), the swing mechanism (2) comprising a support plate (21), a support frame (22) being arranged on the support plate (21), and a pulling component (23) for pulling the impact ball (13) to an initial position of the swinging motion being arranged on the top of the support frame (22); A stone-blocking mechanism (3), the stone-blocking mechanism (3) comprising a stone-blocking wall (31), a soil cushion layer (32) being provided on a side of the stone-blocking wall (31) facing the swing mechanism (2); Two groups of acceleration sensor mechanisms (4), the two groups of acceleration sensor mechanisms (4) are symmetrically arranged on both sides of the impact ball (13), the acceleration sensor mechanisms (4) include a mounting frame (41) and an acceleration sensor (42) arranged in the mounting frame (41), and one side of the mounting frame (41) is provided with a through opening (411) for the acceleration sensor (42) to be moved out and a blocking component (43) for blocking the through opening (411); Two groups of opening members (5), the opening members (5) being located between the stone blocking mechanism (3) and the swing mechanism (2), a gap being left between the two groups of opening members (5) for the collision ball (13) to pass through, and when the collision ball (13) collides with the stone blocking mechanism (3), the opening members (5) can drive the blocking assembly (43) to move so as to open the passage (411); The blocking assembly (43) comprises a blocking block (431) and an opening and closing member (432); the blocking block (431) is slidably arranged in the installation frame (41); the blocking block (431) comprises a first support block (4311) and a second support block (4312); the length direction of the first support block (4311) is consistent with the radial direction of the acceleration sensor (42); the second support block (4312) is arranged on a side of the first support block (4311) facing the acceleration sensor (42); the opening and closing member (432) comprises a first support block (4311) and a second support block (4312); The device comprises an opening and closing gear (4321), a rotating shaft (4322) and an opening and closing rod (4323); the rotating shaft (4322) is rotatably connected in the installation frame (41); the opening and closing gear (4321) is coaxially connected to the rotating shaft (4322); the opening and closing rod (4323) is radially arranged on the rotating shaft (4322) and extends outside the installation frame (41); and a rack (4313) meshing with the opening and closing gear (4321) is arranged on a side of the first support block (4311) away from the acceleration sensor (42); A protrusion (4324) is provided at one end of the rotating shaft (4322) away from the opening and closing rod (4323); a torsion spring (4325) is sleeved on the outside of the rotating shaft (4322); one end of the torsion spring (4325) is fixedly connected to the protrusion (4324), and the other end is fixedly connected to the installation frame (41); when the torsion spring (4325) is in an original state, the first support block (4311) blocks the through opening (411), and the second support block (4312) abuts against the end face of the acceleration sensor (42); Both sides of the stone-blocking mechanism (3) are provided with storage mechanisms (6) for storing acceleration sensors (42).

2. The rolling stone impact test device according to claim 1, characterized in that: When the pulling assembly (23) pulls the impact ball (13) to the highest stroke position, the opening and closing rod (4323) is in a horizontal state; when the impact ball (13) moves to the gap position between the two groups of opening members (5), the opening and closing rod (4323) is in a vertical state and abuts against the opening members (5); when the impact ball (13) moves to collide with the stone blocking mechanism (3), the opening and closing rod (4323) drives the rotating shaft (4322) to rotate to drive the opening and closing gear (4321) to rotate.

3. The rolling stone impact test device according to claim 1, characterized in that: The storage mechanism (6) comprises a first slide rail (61), a support rod (62) is arranged on the first slide rail (61), a storage box (63) is arranged on the top of the support rod (62), an opening (631) is arranged on a side of the storage box (63) facing the swing mechanism (2), when the impact ball (13) collides with the stone blocking mechanism (3), the installation frame (41) moves into the storage box (63), and a flexible buffer pad (632) is arranged in the storage box (63).

4. The rolling stone impact test device according to claim 1, characterized in that: The hoisting assembly (12) comprises a hoisting frame (121), on which a hoisting motor (122) is arranged, on which an output shaft of the hoisting motor (122) is coaxially connected a winding drum (123), on which a steel rope (124) is wound, a connecting ring (125) is arranged at one end of the steel rope (124) away from the winding drum (123), and a rope groove (131) for the connecting ring (125) to be inserted is provided in an annular direction on the impact ball (13); an indicating mechanism (7) is provided at the bottom of the hoisting frame (121), and the indicating mechanism (7) comprises a bottom rod (71), a central column (72) is provided in the middle of the bottom rod (71), a rope cavity for the steel rope (124) to pass through is provided on the central column (72), and indicating assemblies (73) are provided on the bottom rod (71) and on both sides of the central column (72).

5. The rolling stone impact test device according to claim 4, characterized in that: The indicating assembly (73) comprises a supporting block (731), the bottom of the supporting block (731) is fixedly connected with an indicating rope (732), one end of the indicating rope (732) away from the supporting block (731) is provided with an indicating rod (733), and one end of the indicating rod (733) away from the indicating rope (732) is provided with an indicating block (734).

6. The rolling stone impact test device according to claim 5, characterized in that: The support block (731) is slidably arranged on the bottom rod (71), and a fastening bolt (7311) for pressing against the bottom rod (71) is arranged on the support block (731); the indicator rod (733) is a telescopic rod, and the indicator rod (733) comprises an outer rod (7331) and an inner rod (7332) slidably connected to the outer rod (7331), and a positioning pin (7333) is arranged on the outer rod (7331), and a plurality of positioning holes for inserting the positioning pin (7333) are distributed on the inner rod (7332) along its length direction.

7. The rolling stone impact test device according to claim 3, characterized in that: The support rod (62) comprises a first support rod (621) and a second support rod (622); a first slide seat (623) is provided at the bottom of the first support rod (621) and is slidably connected to the first slide rail (61) via the first slide seat (623); the second support rod (622) is slidably connected to the top end of the first support rod (621) along the length direction of the first support rod (621); and a first tightening bolt (624) for fixing the position of the second support rod (622) is provided on the first support rod (621).

8. The rolling stone impact test device according to claim 1 or 7, characterized in that: The opening member (5) comprises a second slide rail (51), an opening plate (52) is slidably arranged on the second slide rail (51), the opening plate (52) comprises a first support plate (521) and a second support plate (522), a second slide seat (523) is arranged at the bottom of the first support plate (521) and is slidably connected to the second slide rail (51) through the second slide seat (523), the second support plate (522) is slidably connected to the top of the first support plate (521) along the length direction of the first support plate (521), and a second tightening bolt (524) for fixing the position of the second support plate (522) is arranged on the first support plate (521).

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