Experimental device for reciprocating collision of small rigid ball between flexible beams

Abstract

The utility model discloses an experimental device for reciprocating collision of a small rigid ball between flexible beams, and mainly relates to flexible beam experiments. Comprising a bottom frame and an adjusting structure, a flexible beam body is arranged at the upper end of the bottom frame, a monitoring module is arranged above the bottom frame, the flexible beam body and the monitoring module are connected with the bottom frame through the adjusting structure, and the adjusting structure is arranged on the upper surface of the bottom frame and comprises two connecting rails. The two connecting rails are fixedly connected with the bottom frame, the upper surface of the bottom frame is fixedly connected with two vertical rails, the two vertical rails and the two connecting rails are divided into two groups, one vertical rail and one connecting rail form one group, the inner walls of the vertical rails and the inner walls of the connecting rails are slidably connected with moving blocks, and two notches are formed in the upper surface of each moving block. The device has the beneficial effects that the experiment height or the experiment position of the flexible beam can be conveniently and randomly adjusted, and the experiment flexibility and expansibility are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of flexible beam experimental technology, and in particular to an experimental device for the reciprocating collision of a rigid ball between flexible beams. Background Technology

[0002] The experimental setup consists of a base frame, a flexible beam body, and a monitoring module. It is a device used to conduct and monitor the reciprocating collisions of rigid balls between flexible beams and is quite common in daily life.

[0003] Existing technologies, such as the utility model patent with publication number CN103900782A, disclose a secondary collision test bench for typical flexible components. This patent employs a test beam and its fixing device, typical flexible components such as rods and balls and their motion constraint devices, a measuring device for minute displacement changes on the beam surface, and a secondary collision measurement circuit and laser vibrometer independent of the main structure of the test bench. When typical flexible components such as rods and balls collide with the test beam, experimental data is collected through a detection device to study the primary collision behavior of typical flexible components during low-speed collisions. This invention's test bench features precise positioning between components, stable operation, and high experimental repeatability; the test bench also has the characteristics of simple structure and easy adjustment.

[0004] In everyday use, it has been found that if the existing technology for fixing flexible beams is inconvenient, it may require disassembling or replacing components when adjusting the stiffness or position of the beam, which increases the complexity and time cost of the experiment. Moreover, the inability to easily adjust the stiffness or position of the beam will limit the exploration of different parameter combinations and reduce the flexibility and scalability of the experiment.

[0005] This application provides another technical solution to this technical problem, aiming to provide those skilled in the art with multiple options for solving the problem. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an experimental device for the reciprocating collision of rigid balls between flexible beams.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an experimental device for the reciprocating collision of a rigid ball between flexible beams, comprising a base frame and an adjustment structure. A flexible beam body is disposed at the upper end of the base frame, and a monitoring module is disposed above the base frame. The flexible beam body and the monitoring module are connected to the base frame via the adjustment structure. The upper surface of the base frame is provided with the adjustment structure, which includes two connecting rails fixedly connected to the base frame. Two vertical rails are fixedly connected to the upper surface of the base frame. The two vertical rails and the two connecting rails are divided into two groups, with one vertical rail and one connecting rail forming one group. A moving block is slidably connected to the inner wall of the vertical rail and the connecting rail. Two slots are formed on the upper surface of the moving block, and the inner wall of the slots... A sliding rod is slidably connected, with a pressure plate fixedly connected to the upper end of the sliding rod. A spring is installed inside the groove, with both ends of the spring fixedly connected to the groove and the pressure plate, respectively. An extrusion block is fixedly connected to the lower surface of the pressure plate. The flexible beam body is placed on the moving block. A screw is rotatably connected inside the connecting rail, and the screw is threadedly connected to the moving block. A groove is formed on the side of the connecting rail away from the vertical rail, and a round rod is slidably connected to the inner wall of the groove. The round rod is fixedly connected to the moving block. Several graduated grooves are formed on the side of the connecting rail away from the vertical rail. An indicator block is fixedly connected to the end of the round rod away from the moving block. Connecting rods are fixedly connected to the sides of the two moving blocks that are close to each other, and the sides of the connecting rods that are close to each other are connected to the monitoring module.

[0008] The effect achieved by the above components is as follows: when it is necessary to adjust the test distance of the flexible beam body, the screw is rotated to move it, the screw drives the moving block to move, the moving block slides on the inner wall of the vertical rail and the connecting rail, the moving block drives the round rod to move, the round rod drives the indicator block to move, after moving to the appropriate position, the indicator block points to the appropriate scale, then the pressure plate is pulled to move it, the pressure plate drives the slide rod to slide on the inner wall of the moving block, the pressure plate drives the spring to stretch, the pressure plate drives the extrusion block to move, then the flexible beam body is placed on the moving block, then the pressure plate spring is released to retract, the spring drives the pressure plate and the extrusion block to extrude and fix the flexible beam body in reverse.

[0009] Preferably, a friction rod is fixedly connected to the upper end of the screw, and the friction rod is a stainless steel rod.

[0010] The effect achieved by the above components is that the friction rod can be rotated directly when needed, and the friction rod can increase the friction between the hand and the friction rod, preventing slippage when rotating the friction rod.

[0011] Preferably, an anti-slip pad, which is a rubber pad, is fixedly connected to the lower surface of the extrusion block.

[0012] The effect achieved by the above components is that the anti-slip pad can increase the friction between the extrusion block and the flexible beam, and prevent the extrusion block from sliding when it is extruding and fixing the flexible beam.

[0013] Preferably, a limiting rod is fixedly connected inside the vertical rail, and the limiting rod is slidably connected to the moving block.

[0014] The effect achieved by the above components is that the limiting rod can limit the movement of the moving block, prevent the moving block from deviating during movement, and improve the stability of the moving block's movement.

[0015] Preferably, an auxiliary structure is provided on the side of the two vertical rails that are far apart from each other. The auxiliary structure includes two fixed rails. The two ends of the two fixed rails are fixedly connected to the vertical rail and the connecting rail, respectively. Two fixed rods are slidably connected to the inner wall of the fixed rails. Two tension springs are provided inside the fixed rails. The two ends of the tension springs are fixedly connected to the fixed rails and the fixed rods, respectively. A placement box is fixedly connected to the side of the two fixed rods that are close to each other.

[0016] The effect achieved by the above components is as follows: when an impact test is required, a rigid ball is placed in two placement boxes, and then the fixing rod is pulled to move it, opening the fixing rod instantly. Then the fixing rod drives the tension spring to stretch, and the rigid ball falls. After the test is completed, the fixing rod is released, and the tension spring contracts to close the two placement boxes.

[0017] Preferably, both ends of the fixing rod are fixedly connected to handles, and the handles are plastic rods.

[0018] The effect achieved by the above components is that when it is necessary to move the fixed rod, the handle can be pulled directly, and the handle will drive the fixed rod to move, making it more convenient to move the fixed rod.

[0019] Preferably, the fixed rail has two connecting rods internally fixedly connected, the connecting rods are slidably connected to the fixed rod, and the tension spring is sleeved on the arc surface of the connecting rod.

[0020] The effect achieved by the above components is that the connecting rod can limit the tension spring, prevent the tension spring from deforming during use, and improve the service life of the tension spring.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, by operating the adjustment structure, the existing technology, if the fixed method of the flexible beam is inconvenient, may require disassembly or replacement of components when adjusting the stiffness or position of the beam, which increases the complexity and time cost of the experiment. Moreover, the inability to easily adjust the stiffness or position of the beam will limit the exploration of different parameter combinations and reduce the flexibility and scalability of the experiment. This device achieves the effect of easily adjusting the experimental height or position of the flexible beam, greatly improving the flexibility and scalability of the experiment.

[0023] In this invention, by manipulating the auxiliary structure, it is possible to conveniently place rigid balls of different sizes into free fall, and the position of the falling balls can be adjusted. Attached Figure Description

[0024] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Appendix Figure 2 This is a schematic diagram of the adjustment structure of this utility model;

[0026] Appendix Figure 3 This is a utility model Figure 2 Enlarged view of point A;

[0027] Appendix Figure 4 This is a utility model Figure 2 Enlarged view of point B;

[0028] Appendix Figure 5 This is a schematic diagram of the auxiliary structure of this utility model;

[0029] Appendix Figure 6 This is a utility model Figure 5 Enlarged view of point C.

[0030] The following are the labels in the attached diagram: 1. Base frame; 2. Flexible beam body; 3. Monitoring module; 4. Adjustment structure; 401. Vertical rail; 402. Connecting rod; 403. Slide groove; 404. Connecting rail; 405. Moving block; 406. Pressure plate; 407. Extrusion block; 408. Anti-slip pad; 409. Indicator block; 410. Round rod; 411. Scale groove; 412. Spring; 413. Slide rod; 414. Groove; 415. Limiting rod; 416. Friction rod; 417. Screw; 5. Auxiliary structure; 51. Fixed rail; 52. Fixed rod; 53. Placement box; 54. Handle; 55. Connecting rod; 56. Tension spring. Detailed Implementation

[0031] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0032] Reference Figure 1 As shown, this utility model provides a technical solution: a rigid ball reciprocating collision experimental device between flexible beams, including a base frame 1 and an adjustment structure 4. A flexible beam body 2 is provided at the upper end of the base frame 1, and a monitoring module 3 is provided above the base frame 1. The flexible beam body 2 and the monitoring module 3 are connected to the base frame 1 through the adjustment structure 4. The adjustment structure 4 is provided on the upper surface of the base frame 1, and an auxiliary structure 5 is provided on the side of the two vertical rails 401 that are far apart from each other.

[0033] The specific settings and functions of its adjustment structure 4 and auxiliary structure 5 will be explained below.

[0034] Reference Figures 2 to 4As shown in this embodiment: the adjusting structure 4 includes two connecting rails 404, which are fixedly connected to the bottom frame 1. Two vertical rails 401 are fixedly connected to the upper surface of the bottom frame 1. The two vertical rails 401 and the two connecting rails 404 are divided into two groups, with one vertical rail 401 and one connecting rail 404 forming one group. Moving blocks 405 are slidably connected to the inner walls of the vertical rails 401 and the connecting rails 404. Two slots 414 are opened on the upper surface of the moving blocks 405. Sliding rods 413 are slidably connected to the inner walls of the slots 414. A pressure plate 406 is fixedly connected to the upper end of the sliding rods 413. A spring 412 is installed inside the slots 414, with both ends of the spring 412 fixedly connected to the slots 414 and the pressure plate 406, respectively. The pressure plate 406... A pressing block 407 is fixedly connected to the lower surface of the flexible beam body 2, which is placed on the moving block 405. A screw 417 is rotatably connected inside the connecting rail 404, and the screw 417 is threadedly connected to the moving block 405. A groove 403 is provided on the side of the connecting rail 404 away from the vertical rail 401. A round rod 410 is slidably connected to the inner wall of the groove 403, and the round rod 410 is fixedly connected to the moving block 405. Several scale grooves 411 are provided on the side of the connecting rail 404 away from the vertical rail 401. An indicator block 409 is fixedly connected to the end of the round rod 410 away from the moving block 405. A connecting rod 402 is fixedly connected to the side of the two moving blocks 405 that are close to each other. The side of the connecting rod 402 that is close to each other is connected to the monitoring module 3. When the test distance of the flexible beam body 2 needs to be adjusted, the screw 417 is rotated to move it. The screw 417 drives the moving block 405 to move. The moving block 405 slides on the inner wall of the vertical rail 401 and the connecting rail 404. The moving block 405 drives the round rod 410 to move. The round rod 410 drives the indicator block 409 to move. After moving to the appropriate position, the indicator block 409 points to the appropriate scale. Then, the pressure plate 406 is pulled to move it. The pressure plate 406 drives the slide rod 413 to slide on the inner wall of the moving block 405. The pressure plate 406 drives the spring 412 to stretch. The pressure plate 406 drives the extrusion block 407 to move. Then, the flexible beam body 2 is placed on the moving block 405. Then, the pressure plate 406 is released and the spring 412 is contracted. The spring 412 drives the pressure plate 406 and the extrusion block 407 to press and fix the flexible beam body 2 in reverse. The upper end of the screw 417 is fixedly connected to a friction rod 416, which is a stainless steel rod. When it is necessary to rotate the friction rod 416, the friction rod 416 can be rotated directly. The friction rod 416 can increase the friction between the hand and the friction rod 416, preventing slippage when rotating the friction rod 416. An anti-slip pad 408, which is a rubber pad, is fixedly connected to the lower surface of the extrusion block 407. The anti-slip pad 408 can increase the friction between the extrusion block 407 and the flexible beam, preventing slippage when the extrusion block 407 is extruded and fixed to the flexible beam. A limit rod 415 is fixedly connected inside the vertical rail 401, and the limit rod 415 is slidably connected to the moving block 405.The limit rod 415 can limit the movement of the moving block 405, preventing the moving block 405 from deviating during movement and improving the stability of the movement of the moving block 405.

[0035] Reference Figure 5 and Figure 6 As shown in this embodiment: the auxiliary structure 5 includes two fixed rails 51, the two ends of which are fixedly connected to the vertical rail 401 and the connecting rail 404 respectively. Two fixed rods 52 are slidably connected to the inner wall of the fixed rails 51. Two tension springs 56 are installed inside the fixed rails 51, the two ends of which are fixedly connected to the fixed rails 51 and the fixed rods 52 respectively. Placement boxes 53 are fixedly connected to the sides of the two fixed rods 52 that are close to each other. When an impact test is required, a rigid ball is placed in the two placement boxes 53, and then the fixed rods 52 are pulled to move them, instantly opening the fixed rods 52. The fixed rods 52 then stretch the tension springs 56, causing the rigid ball to fall. After the test, the fixed rods 52 are released, and the tension springs 56 contract, causing the two placement boxes 53 to close. A handle 54, which is a plastic rod, is fixedly connected to both ends of the fixed rods 52. When it is necessary to move the fixed rod 52, the handle 54 can be pulled directly. The handle 54 moves the fixed rod 52, making it easier to move. The fixed rail 51 has two connecting rods 55 internally fixedly connected. The connecting rods 55 are slidably connected to the fixed rod 52, and the tension spring 56 is fitted onto the arc surface of the connecting rod 55. The connecting rods 55 can limit the movement of the tension spring 56, preventing deformation during use and improving its service life.

[0036] Detailed Instructions for Use: When adjusting the test distance of the flexible beam body 2, rotate the screw 417 to move it. The screw 417 drives the moving block 405 to move, and the moving block 405 slides on the inner wall of the vertical rail 401 and the connecting rail 404. The moving block 405 drives the round rod 410 to move, and the round rod 410 drives the indicator block 409 to move. After moving to the appropriate position, the indicator block 409 points to the appropriate scale. Then, pull the pressure plate 406 to move it. The pressure plate 406 drives the slide rod 413 to slide on the inner wall of the moving block 405. The pressure plate 406 drives the spring 412 to stretch, and the pressure plate 406 drives the pressing block 407 to move. Then, place the flexible beam body 2 on the moving block 405. On block 405, the pressure plate 406 and spring 412 are released to retract. Spring 412 drives pressure plate 406 and extrusion block 407 to press and fix the flexible beam body 2 in reverse. When it is necessary to rotate friction rod 416, friction rod 416 can be rotated directly. Friction rod 416 can increase the friction between the hand and friction rod 416 to prevent slippage when rotating friction rod 416. Anti-slip pad 408 can increase the friction between extrusion block 407 and flexible beam to prevent extrusion block 407 from slipping when pressing and fixing flexible beam. Limiting rod 415 can limit moving block 405 to prevent moving block 405 from deviating when moving, thus improving the stability of moving block 405.

[0037] When an impact test is required, a rigid ball is placed in two placement boxes 53. Then, the fixing rod 52 is pulled to move it, instantly opening the fixing rod 52. The fixing rod 52 then stretches the tension spring 56, causing the rigid ball to fall. After the test, the fixing rod 52 is released, and the tension spring 56 contracts, causing the two placement boxes 53 to close. When it is necessary to move the fixing rod 52, the handle 54 can be pulled directly. The handle 54 moves the fixing rod 52, making it easier to move the fixing rod 52. The connecting rod 55 can limit the tension spring 56, preventing it from deforming during use and improving its service life.

Claims

1. An experimental device for the reciprocating collision of a rigid ball between flexible beams, comprising a base frame (1) and an adjustment structure (4), characterized in that: A flexible beam body (2) is provided at the upper end of the bottom frame (1), and a monitoring module (3) is provided above the bottom frame (1). The flexible beam body (2) and the monitoring module (3) are connected to the bottom frame (1) through an adjustment structure (4). An adjustment structure (4) is provided on the upper surface of the bottom frame (1). The adjustment structure (4) includes two connecting rails (404). The two connecting rails (404) are fixedly connected to the bottom frame (1). Two vertical rails (401) are fixedly connected to the upper surface of the bottom frame (1). The rail (401) and two connecting rails (404) are divided into two groups. One vertical rail (401) and one connecting rail (404) form one group. The inner walls of the vertical rail (401) and the connecting rail (404) are slidably connected to a moving block (405). The upper surface of the moving block (405) has two slots (414). The inner wall of the slot (414) is slidably connected to a slide rod (413). The upper end of the slide rod (413) is fixedly connected to a pressure plate (406). A spring is provided inside the slot (414). 412), the two ends of the spring (412) are fixedly connected to the slot (414) and the pressure plate (406) respectively. The pressure plate (406) is fixedly connected to the lower surface of the pressure plate (406) with a pressing block (407). The flexible beam body (2) is placed on the moving block (405). The connecting rail (404) is rotatably connected to the inside with a screw (417). The screw (417) is threadedly connected to the moving block (405). The connecting rail (404) has a sliding groove (403) on the side away from the vertical rail (401). The sliding groove (403) is provided on the side away from the vertical rail (401). A round rod (410) is slidably connected to the inner wall of 03. The round rod (410) is fixedly connected to the moving block (405). Several scale grooves (411) are opened on the side of the connecting rail (404) away from the vertical rail (401). An indicator block (409) is fixedly connected to the end of the round rod (410) away from the moving block (405). A connecting rod (402) is fixedly connected to the side of the two moving blocks (405) that are close to each other. The side of the connecting rod (402) that is close to each other is connected to the monitoring module (3).

2. The experimental apparatus for reciprocating collision of a rigid ball between flexible beams according to claim 1, characterized in that: The upper end of the screw (417) is fixedly connected to a friction rod (416), which is a stainless steel rod.

3. The experimental apparatus for reciprocating collision of a rigid ball between flexible beams according to claim 1, characterized in that: An anti-slip pad (408) is fixedly connected to the lower surface of the extrusion block (407), and the anti-slip pad (408) is a rubber pad.

4. The experimental apparatus for reciprocating collision of a rigid ball between flexible beams according to claim 1, characterized in that: The vertical rail (401) is internally fixedly connected to a limiting rod (415), and the limiting rod (415) is slidably connected to the moving block (405).

5. The experimental apparatus for reciprocating collision of a rigid ball between flexible beams according to claim 1, characterized in that: An auxiliary structure (5) is provided on the side of the two vertical rails (401) that are far apart from each other. The auxiliary structure (5) includes two fixed rails (51). The two ends of the two fixed rails (51) are fixedly connected to the vertical rail (401) and the connecting rail (404) respectively. Two fixed rods (52) are slidably connected to the inner wall of the fixed rail (51). Two tension springs (56) are provided inside the fixed rail (51). The two ends of the tension springs (56) are fixedly connected to the fixed rail (51) and the fixed rods (52) respectively. A placement box (53) is fixedly connected to the side of the two fixed rods (52) that are close to each other.

6. The experimental apparatus for reciprocating collision of a rigid ball between flexible beams according to claim 5, characterized in that: Both ends of the fixing rod (52) are fixedly connected to handles (54), and the handles (54) are plastic rods.

7. The experimental apparatus for reciprocating collision of a rigid ball between flexible beams according to claim 5, characterized in that: The fixed rail (51) has two connecting rods (55) fixedly connected inside. The connecting rods (55) are slidably connected to the fixed rod (52), and the tension spring (56) is sleeved on the arc surface of the connecting rod (55).

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