Rock-throwing device for motion simulation

Abstract

The application discloses a rockfall throwing device for motion simulation and a simulation test method, and technical scheme points are as follows: the device comprises a slide rail and a load component, the slide rail is arranged in an inclined mode and the inclination angle is adjustable, the load component is slidably connected to the slide rail and used for bearing a test object, the load component comprises a sliding seat, a fixing frame is fixedly connected to the upper side of the sliding seat, two supporting frames are arranged on the outer side of the fixing frame, and a space for bearing the test object is formed at the upper side between the two supporting frames. The application can simulate the throwing state of the rockfall.

Description

TECHNICAL FIELD

[0001] The present application relates to a rockfall test device, more particularly, to a rockfall throwing device for motion simulation. BACKGROUND

[0002] Rockfall disaster has become another major mountain geological disaster after landslide and debris flow, which seriously threatens the surrounding personnel facilities and the safety of major transportation engineering construction and operation. During the falling process of rockfall from the high slope, the rockfall will collide multiple times, and the rockfall will impact the bottom or the object below at various speeds and angles, and impact the surrounding facilities. In order to study the falling state of rockfall, various rockfall states need to be simulated and tested to relatively accurately obtain the influence information of rockfall, so as to estimate the influence of rockfall in advance.

[0003] At present, when researchers collect information on the motion state of rockfall, they usually need to throw rockfall on artificial simulated slopes, throw rockfall at different heights and angles, and then obtain the motion state of rockfall in various states to simulate the influence of rockfall. However, it is difficult to adjust the motion state of rockfall during the process of throwing rockfall, which affects the simulation effect of rockfall motion.

[0004] Therefore, a new scheme needs to be proposed to solve this problem. SUMMARY

[0005] The present application aims to solve the above problems and provide a rockfall throwing device for motion simulation, which can simulate the throwing state of rockfall.

[0006] The above technical purpose of the present application is realized by the following technical scheme: a rockfall throwing device for motion simulation, comprising a slide rail and a load assembly, the slide rail is inclined and the inclination angle is adjustable, the load assembly is slidingly connected to the slide rail and used for carrying a test object; the load assembly comprises a slide base, a fixed frame is fixedly connected to the upper side of the slide base, two support frames are arranged on the outer side of the fixed frame, and a space for carrying the test object is formed at the upper side between the two support frames.

[0007] The present application is further provided that the test object is provided with a fixed connecting shaft, the connecting shaft penetrates the test object at both ends; two support bearings are installed on the upper side of each fixed frame, and the two support bearings are used for supporting both ends of the two shafts of the test object.

[0008] The present application is further provided that a limiting shaft is arranged at the position corresponding to the connecting shaft on the upper side of the fixed frame, the limiting shaft is movable and adjustable in the axial direction, and is used for inserting into the end of the connecting shaft; a limiting groove is arranged at the position of the end of the connecting shaft, and a limiting block matched with the limiting groove is arranged on the outer side of the limiting shaft.

[0009] The application is further provided with a movable frame on the outer side of the support frame, which is driven and adjusted by a driving member and can reciprocate towards the outer side of the support frame; a motor is installed on the upper side of the movable frame, the shaft of the motor extends towards the inner side of the support frame, and the shaft of the motor is in an integral structure with the limiting shaft; the motor is used to drive the test object to rotate around the connecting shaft.

[0010] The application is further provided with a guide sliding rod for sliding guidance of the movable frame, which is parallel to the limiting shaft; the driving member has a telescopic driving end for relative movement of the movable frame and the fixed frame.

[0011] The application is further provided with a support shaft for rotation connection of the two support frames to the fixed frame, and a support rod is fixedly connected to the lower side of the two support frames for synchronous rotation.

[0012] The application is further provided with the support rod located at the front side of the fixed frame, and the upper side of the support frame is abutted against the fixed frame when rotating towards the front end of the sliding rail, so as to limit the rotation angle of the support frame.

[0013] The application is further provided with the support shaft penetrating through the support frame and being threadedly connected with a nut, and the nut is used to adjust the rotation resistance between the support frame and the fixed frame.

[0014] The application is further provided with a pull rope connected to the support rod, which extends upwards along the sliding rail, passes around a guide wheel downwards, and has a weight connected to the end of the pull rope; the object carrying assembly is located at the projectile position of the lower section of the sliding rail, and the weight is suspended, and the weight is used to drive the upper side of the support frame to rotate forward, so as to adjust the position of the support frame and the test object.

[0015] The application is further provided with a damping buffer rod arranged at the lower end of the sliding rail, which is used to abut against and limit the sliding seat; a projectile position of the test object is formed at a position close to the lower end of the sliding rail, and a speed sensor is arranged between the sliding seat and the sliding rail, which is used to detect the speed of the sliding seat.

[0016] The application also provides a rockfall collision motion characteristic simulation test method, which uses the rockfall projectile device to simulate the test object.

[0017] In summary, the application has the following beneficial effects:

[0018] By using the rockfall projectile device, the test object simulating the rockfall can be stably projected, the projection angle, speed and other parameters of the test object can be adjusted, the rockfall projection state can be reliably simulated, the rockfall trajectory can be accurately predicted, and an efficient and accurate simulation structure can be constructed, so that the state of the test object can be easily projected and moved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 This invention provides a three-dimensional motion-simulated rock-throwing device. Figure 1 ;

[0020] Figure 2 This invention provides a three-dimensional motion-simulated rock-throwing device. Figure 2 ;

[0021] Figure 3 This is a side view of a motion-simulated rock-throwing device according to the present invention;

[0022] Figure 4 This is a front view of the carrier assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the carrier component and the test object of the present invention. Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the structure of the carrier component and the test object of the present invention. Figure 2 ;

[0025] Figure 7 This is a perspective view of the carrier assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the test object of the present invention.

[0027] Reference numerals: 1. Frame; 2. Slide rail; 21. Hinge end; 22. Support end; 23. Color difference area; 3. Drive rod; 4. Load assembly; 41. Slide seat; 42. Fixing frame; 43. Support shaft; 431. Nut; 44. Support frame; 441. Support rod; 45. Support bearing; 46. Movable frame; 47. Drive motor; 471. Limiting shaft; 472. Limiting block; 48. Guide rod; 49. Drive component; 5. Test object; 51. Connecting shaft; 511. Connecting hole; 512. Limiting groove; 6. Damping buffer rod; 7. Pull rope; 71. Weight; 72. Guide wheel. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This embodiment discloses a motion-simulated rock-throwing device, such as... Figures 1-3As shown, the device includes a slide rail 2 and a load assembly 4. The slide rail 2 is supported by a frame 1 and is tilted. The load assembly 4 is slidably connected to the slide rail 2 and serves to carry the test object 5. The test object 5 is carried by the load assembly 4 and slides down from the top of the slide rail 2, giving the test object 5 a certain launch angle and speed. Then, the load assembly 4 releases the test object 5 and launches it, simulating the situation of a falling rock.

[0030] The downward-facing end of the slide rail 2 is a hinge end 21, which is rotatably connected to the frame 1. By rotating and adjusting the slide rail 2, the load assembly 4 and the test object 5 can form different projection angles, thereby simulating different rockfall conditions.

[0031] A drive rod 3 is installed between the frame 1 and the slide rail 2. The drive rod 3 can be an electric push rod, allowing for telescopic adjustment. The lower end of the drive rod 3 is hinged to the frame 1, and the upper end is hinged to the lower middle of the slide rail 2. The slide rail 2 can be adjusted by extending or retracting the drive rod 3. A crossbar is provided on the side of the frame 1 corresponding to the upper end of the slide rail 2, supporting the upper end of the slide rail 2. The crossbar on the frame 1 can be adjusted up and down, and after adjustment, it is locked in place with bolts, thus allowing the crossbar to be used with slide rails 2 at different angles.

[0032] A damping buffer rod 6 is installed at the downward end of the slide rail 2. The damping buffer rod 6 acts as a buffer against the slide block 41, preventing the slide block 41 from causing excessive impact and collision to the end of the slide rail 2.

[0033] like Figures 4-7 As shown, the carrier assembly 4 includes a slide 41, and a fixing frame 42 is fixedly connected to the upper side of the slide 41. Two support frames 44 are arranged on the outer side of the fixing frame 42. An accommodating space is formed on the upper side between the two support frames 44, which can carry the test object 5, so that the carrier assembly 4 can carry the test object 5 to achieve a projectile action and obtain an initial velocity close to that of the carrier assembly 4.

[0034] like Figure 8 As shown, the test object 5 is a simulated artificial rockfall. A through hole is opened in the middle of the test object 5, and a connecting shaft 51 is fixedly installed in the through hole. Both ends of the connecting shaft 51 pass through the test object 5 and extend from both sides of the test object 5, serving to support the test object 5.

[0035] Two support shafts 43 are installed on the upper side of each fixture 42. The two support shafts 43 are installed in parallel and fixedly connected to the fixture 42 at the middle position. The outer ring of the support shaft 43 can rotate. The test object 5 is placed inside the fixture 42. The two ends of the connecting shaft 51 are supported by the two support shafts 43 and are embedded in the recessed space formed by the two support shafts 43, thus supporting the test object 5.

[0036] A limiting shaft 471 is arranged on the upper side of the fixing frame 42 corresponding to the position of the connecting shaft 51, the limiting shaft 471 is coaxial with the connecting shaft 51, and the limiting shaft 471 can be adjusted in the axial direction. A limiting groove 512 is arranged at the end position of the connecting shaft 51, and the outer side of the limiting shaft 471 is fixedly provided with a limiting block 472, and the position and shape of the limiting block 472 and the limiting groove 512 are matched with each other. When the test object 5 is placed between the fixing frames 42, the two ends of the connecting shaft 51 are supported by the support shaft 43. By adjusting the position of the limiting shaft 471, the limiting shaft 471 can be axially inserted into the connecting hole 511 of the connecting shaft 51, and the limiting block 472 is embedded in the limiting groove 512, thereby limiting the position of the connecting shaft 51 and the test block, maintaining the stability of the test object 5, and avoiding the test object 5 from falling during the sliding process.

[0037] The outer side of the support frame 44 is provided with a movable frame 46, and the movable frame 46 is provided with two, which are respectively located at the outer side positions of the two support frames 44. The movable frame 46 is driven and adjusted by the driving member 49, and can reciprocate towards the outer side of the support frame 44. The movable frame 46 is slidably guided by the guide slide rod 48, and the guide slide rod 48 is parallel to the limiting shaft 471, so that the movable frame 46 can drive the guide slide rod 48 to move in the axial direction during the sliding process. The driving member 49 is installed on the movable frame 46, and the driving member 49 has a telescopic driving end, and the driving end is connected with the support frame 44. By the telescopic action of the driving member 49, the support frame 44 can be driven to move relative to the fixing frame 42. For example, the driving member 49 can be driven by a pneumatic cylinder or an electromagnet, and the telescopic action can drive the movable frame 46 to reciprocate.

[0038] In addition, in order to simulate the self-rotation of the test object 5, a motor can be installed on the upper side of the movable frame 46, and the shaft of the motor extends towards the inner side of the support frame 44. The shaft of the motor and the limiting shaft 471 adopt an integrated structure, that is, the shaft of the motor serves as the limiting shaft 471, and the test object 5 and the connecting shaft 51 are limited.

[0039] The limiting shaft 471 and the connecting shaft 51 are connected through the limiting groove 512 and the limiting block 472 to transmit torque, so that the test object 5 can be driven to rotate around the connecting shaft 51 during the rotation of the motor. In addition, the lower side of the connecting shaft 51 is supported by the support shaft 43, which can support the connecting shaft 51 and maintain the stability of the rotation of the connecting shaft 51. Before the test object 5 is launched, the driving member 49 drives the two movable frames 46 to move outward, drives the motor and the limiting shaft 471 to move outward, and the limiting shaft 471 is pulled out of the connecting shaft 51, so that the limiting of the test object 5 is eliminated, and the test object 5 can be smoothly launched.

[0040] A test object 5 is thrown from the upper side of the support frame 44 at a throwing position formed on the slide rail 2 near the lower end, achieving simulation of the rock-throwing state. A speed sensor is arranged between the slide 41 and the slide rail 2, and is located at the throwing position, so as to detect the sliding speed of the slide 41 and the test object 5, and further obtain the approximate initial throwing speed of the test object 5.

[0041] For driving control of the driving member 49, a color difference zone 23 is arranged on the slide rail 2 near the throwing position, which has a significant color difference from other positions of the slide rail 2; a sensor is arranged on the slide 41, which can detect the color difference of the color difference zone 23. When the slide 41 passes through the color difference zone 23, the driving member 49 drives the two movable members outward, and pulls the limiting shaft 471 out of the connecting shaft 51, thereby pre-eliminating the limitation on the test object 5, and further facilitating the smooth throwing of the test object 5 in the subsequent process.

[0042] Further, the two support frames 44 are rotationally connected to the fixed frame 42 through the support shaft 43, and the lower sides of the two support frames 44 are fixedly connected with the support rod 441 to keep synchronous rotation. The support shaft 43 is located at the middle position of the support frame 44, and the two ends of the support shaft 43 are rotationally connected with the two support frames 44, respectively. The support shaft 43 penetrates the support frame 44 and is threadedly connected with the nut 431, and the pressure between the support frame 44 and the fixed frame 42 can be adjusted by adjusting the nut 431, thereby adjusting the rotational friction resistance between the support frame 44 and the fixed frame 42.

[0043] The resistance between the support frame 44 and the fixed frame 42 can maintain the support frame 44 in a fixed position, while under the action of a rotational force, the support frame 44 can be rotated, thereby enabling the test object 5 to be thrown out of the bearing assembly more smoothly.

[0044] The lower sides of the two support frames 44 are fixedly connected with the support rod 441, which keeps the two support frames 44 in synchronous rotation. The support rod 441 is located at the front lower position of the fixed frame 42, and when the upper side of the support frame 44 rotates towards the front end of the slide rail 2, the lower side of the support frame 44 will move towards the rear side. The support rod 441 at the lower side of the support frame 44 abuts against the fixed frame 42, limiting the rotation angle of the support frame 44.

[0045] Further, the support rod 441 is connected with a pull rope 7, the pull rope 7 extends upwards along the slide rail 2, a guide wheel 72 is installed at the upper end position of the slide rail 2, the pull rope 7 passes downwards around the guide wheel 72, and a weight 71 is connected at the end of the pull rope 7. The pull rope 7 has a certain length, when the load assembly 4 is located at the upper position of the slide rail 2, the weight 71 is located on the ground, and the pull rope 7 is in a relaxed state. When the load assembly 4 continuously moves along the slide rail 2 to the lower position of the slide rail 2, the load assembly 4 moves to the position close to the throwing position, the pull rope 7 will be taut, the weight 71 will be pulled up, and the weight 71 is in a suspended state. The weight 71 will form a pulling force through the pull rope 7, the pulling force acts on the lower side of the support frame 44, the lower side of the support frame 44 moves towards the pull rope 7, the upper side of the support frame 44 moves forward, and the test object 5 on the upper side of the support frame 44 forms a throwing action, thereby forming a throwing simulation action.

[0046] The embodiment also discloses a rockfall collision motion characteristic simulation test method, and the throwing device in the above embodiment is used for simulation; before use, the slide rail 2 is adjusted to a required simulation angle through the driving rod 3; the test object 5 to be tested is placed between the support frames 44 and is supported by the support shafts 43, the driving part 49 is adjusted, the limiting rod is inserted into the connecting shafts 51 at two ends of the test object 5, and the test object 5 is limited.

[0047] Then, the load assembly 4 is slid upwards to a certain height in the case that the driving part 49 does not work, the load assembly 4 is released, the action of the load assembly 4 sliding downwards is simulated, meanwhile, the speed sensor is used to detect the speed of the load assembly 4 approaching the throwing position, and the height position of the load assembly 4 sliding downwards initially is recorded; through multiple tests, the sliding height of the load assembly 4 required by the throwing speed is determined. The length of the pull rope 7 is adjusted again, so that the pull rope 7 can pull up the weight 71 when the load assembly 4 slides downwards to approach the throwing position.

[0048] Then, the angle of the support frame 44 is adjusted through rotation, the position of the connecting shaft 51 in the test object 5 is adjusted to the position above the support shaft 43 bearings, the connecting shaft 51 and the two support shaft 43 bearings form a triangular distribution structure, that is, the support frame 44 is in a position close to vertical, and the test object 5 can be relatively stably supported. The load assembly 4 is moved to the height position determined before, then the controller between the driving part 49 and the sensor is started, the motor is turned on, the motor is adjusted to a required rotating speed, and the test object 5 has a rotating speed required by the test.

[0049] Then, the carrier assembly 4 is released, the slide 41 slides down, when the slide 41 moves to the chromatic aberration area 23, the sensor detects a signal, the controller controls the driving member 49 to work, the two movable frames 46 move outward, the limiting shaft 471 is pulled out from the connecting shaft 51 at both ends of the test object 5, the test object 5 is in a released state; at this time, the test object 5 is only supported by the two supporting shafts 43 at both ends, and the rotation of the test object 5 can be supported and the rotation speed of the test object 5 can be maintained. Then, the slide 41 continues to slide down, when the slide 41 tightens the pull rope 7 and the weight 71 is pulled up, the lower end of the support frame 44 is pulled to rotate towards the pull rope 7, the upper end of the support frame 44 and the test object 5 rotate towards the front side, the positions of the two bearings are inclined, the connecting shaft 51 and the test object 5 cannot be supported, the test object 5 is separated from the carrier device, and is thrown forward, thereby the landing throwing action can be simulated.

[0050] By using the rock throwing device for simulating the movement, the landing throwing action can be simulated, the influence of the landing in various states can be tested, various parameters such as different throwing angles, speeds and self-transmission speeds can be adjusted at the same time, various parameters can be matched to simulate the landing in various states.

[0051] The above is only the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiment, any technical scheme belonging to the idea of the present application is within the protection scope of the present application. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application can also be considered as the protection scope of the present application.

Claims

1. A rockfall launching device for motion simulation, characterised in that, The utility model provides a test object rotating device, including slide rail (2) and object carrier assembly (4), slide rail (2) is arranged in the inclination and the inclination angle is adjustable, object carrier assembly (4) is slidably connected to slide rail (2) for carrying test object (5), object carrier assembly (4) includes slide seat (41), the upper side of slide seat (41) is fixedly connected with fixed frame (42), the outer side of fixed frame (42) is provided with two support frames (44), and the upper side between two support frames (44) forms the space for carrying test object (5). Test object (5) is provided with fixed connecting shaft (51), and both ends of connecting shaft (51) penetrate test object (5), the upper side of each fixed frame (42) is equipped with two support bearings (45), and both ends of connecting shaft of test object (5) are supported by two support bearings (45).

2. A motion-simulated rock-throwing apparatus according to claim 1, wherein The upper side of fixed frame (42) is provided with limit shaft (471) corresponding to the position of connecting shaft (51), limit shaft (471) can be adjusted along the axial direction, and the end of connecting shaft (51) is inserted into limit shaft (471), and the end of connecting shaft (51) is provided with limit groove (512), and the outer side of limit shaft (471) is provided with limit block (472) matched with limit groove (512).

3. A motion-simulated rock-throwing apparatus according to claim 2, wherein, The outer side of support frame (44) is provided with movable frame (46), movable frame (46) is driven and adjusted by driving part (49), and movable frame (46) can reciprocate towards the outer side of support frame (44), the upper side of movable frame (46) is provided with motor, the shaft of motor extends towards the inner side of support frame (44), the shaft of motor and limit shaft (471) are integrated, and motor is used to drive test object (5) to rotate around connecting shaft (51).

4. A motion-simulated rock-throwing apparatus according to claim 3, wherein, Movable frame (46) is slidably guided by guide slide rod (48), and guide slide rod (48) is parallel with limit shaft (471), driving part (49) has telescopic driving end, and movable frame (46) is relatively movable with fixed frame (42) by telescopic driving.

5. A motion-simulated rock-throwing device according to claim 1, wherein Two support frames (44) are rotatably connected to fixed frame (42) by support shaft (43), and the lower side of two support frames (44) is fixedly connected with support rod (441) to keep synchronous rotation.

6. A motion-simulated rock-throwing apparatus according to claim 5, wherein, Support rod (441) is located at the front side of fixed frame (42), when the upper side of support frame (44) rotates towards the front end of slide rail (2), support rod (441) abuts against fixed frame (42), and is used to limit the rotation angle of support frame (44).

7. A motion-simulated rock-throwing device according to claim 5, wherein, Support shaft (43) penetrates support frame (44) and is screw-connected with nut (431), and nut (431) is used to adjust the rotation resistance between support frame (44) and fixed frame (42).

8. A motion-simulated rock-throwing device according to claim 5, wherein, Support rod (441) is connected with pull rope (7), pull rope (7) extends upwards along slide rail (2), passes downward around guide wheel (72), and the tail end of pull rope (7) is connected with weight (71), object carrier assembly (4) is located at the projection position of the lower section of slide rail (2), weight (71) is suspended, and weight (71) is used to drive the upper side of support frame (44) to rotate forward, and adjust the position of support frame (44) and test object (5).

9. A method of a rockfall impact motion characteristic simulation test, characterized by, The rockfall projection device according to any one of claims 1 to 8 is used to project the test object (5) of the rockfall, and simulation is achieved.

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