Large metal ball high-altitude falling experiment device

Abstract

The invention discloses a large metal ball high-altitude falling experiment device, and relates to the technical field of metal ball detection experiments. Comprising a screw elevator, the screw elevator is obliquely arranged upwards from an inlet to an outlet, a slide way is arranged at an outlet of the screw elevator, a weight detection table is arranged at an outlet of the slide way, a sliding table is arranged on one side of the weight detection table in a sliding mode, and a limiting box is arranged above the sliding table in a sliding mode; one surface and the bottom surface, facing the weight detection table, of the limiting box are open, a limiting plate is rotationally arranged on one surface, facing the weight detection table, of the limiting box, and a blocking piece used for blocking the limiting plate from rotating outwards is further arranged on the limiting box; the driving device I is used for driving the sliding table to move; the driving device II is used for driving the limiting box to move; a plurality of falling pipelines with different diameters are sequentially arranged on one side of the weight detection table in the sliding direction of the sliding table, outlets of the falling pipelines are in butt joint with a backflow sliding way, and the outlet end of the backflow sliding way is in butt joint with an inlet of the screw elevator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal ball detection experiments, in particular to a large metal ball high-altitude falling experiment device. BACKGROUND

[0002] Metal ball falling experiment, also known as drop ball impact test, is a classic dynamic mechanical property test method in the engineering field. The core function is to simulate the impact resistance, failure mechanism and reliability of materials or products under instantaneous impact load, and it is widely used in material research and development, product quality verification, engineering design optimization and other scenes.

[0003] In the prior art, the experimental device commonly used for large metal ball (metal ball with a diameter of 7-15 cm) falling experiment mainly includes a spiral elevator, a falling pipeline and a ball return chute. The outlet end of the spiral elevator is connected with the inlet end of the falling pipeline, the outlet end of the falling pipeline is connected with the inlet end of the ball return chute, and the outlet end of the ball return chute is connected with the inlet end of the spiral elevator. During the experiment, the metal ball to be tested is put into the spiral elevator for lifting, and then the metal ball enters the falling pipeline. A part of the metal ball (usually about 5-6) is first accumulated in the corresponding bend pipe part of the falling pipeline. As the metal ball continuously falls into the falling pipeline, the subsequent falling metal ball will impact the metal ball previously stopped in the bend pipe part, forming mutual collision to complete the collision and impact effect of the metal ball. The kinetic energy of the collided metal ball is transmitted to the metal ball previously stopped in the bend pipe part at one time, until the last metal ball is impacted and knocked out of the bend pipe part, and finally enters the spiral elevator through the ball return chute for the next cycle experiment.

[0004] Since the metal ball falling experiment has certain limitations on the falling pipeline, the diameter of the metal ball to be tested should be smaller than the diameter of the falling pipeline, and the diameter of the falling pipeline should not be greater than twice the diameter of the metal ball to be tested, so as to avoid the metal ball from being stuck. Therefore, the above-mentioned traditional large metal ball falling experiment device can usually only meet the falling experiment of part of the large metal ball. For example, a falling pipeline with a diameter of 17 cm is usually used to measure a metal ball with a diameter of 15 cm. However, the falling pipeline with a diameter of 17 cm cannot meet the falling experiment of a metal ball with a diameter of 7-8 cm. Due to the above reasons, different diameters of metal balls need to be adapted to different diameters of falling pipelines, which results in that one falling pipeline needs to be separately set as an experimental equipment, greatly increasing the required experimental site. Different diameters of metal balls cannot be simultaneously experimented on the same experimental equipment. At the same time, the experimental personnel need to put different diameters of metal balls into different corresponding experimental equipment for experiment, increasing the difficulty of experimental operation. SUMMARY

[0005] The present application aims to provide a large metal ball high-altitude falling experiment device to solve the problems in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: a large metal ball high-altitude falling experiment device, comprising a spiral elevator, the spiral elevator is arranged obliquely upward from the inlet to the outlet, a slide is arranged at the outlet of the spiral elevator, a weight detection table is arranged at the outlet of the slide, a sliding table is slidably arranged on one side of the weight detection table, a limiting box is slidably arranged above the sliding table, one side and the bottom surface of the limiting box are open, a limiting plate is rotatably arranged on the one side of the limiting box, and a blocking piece is arranged on the limiting box to prevent the limiting plate from rotating outward. Further comprising a driving device one for driving the sliding table to move and a driving device two for driving the limiting box to move. A plurality of falling pipes with different diameters are arranged in sequence on one side of the weight detection table and along the sliding direction of the sliding table, a reflux slide is connected to the outlets of the plurality of falling pipes, and the outlet end of the reflux slide is connected to the inlet of the spiral elevator.

[0007] Preferably, a rack is arranged on one side of the spiral elevator.

[0008] Preferably, the sliding table is slidably arranged on the upper surface of the rack through a linear guide rail and a sliding block.

[0009] Preferably, a fixed beam is arranged on the top of the sliding table, the fixed beam is fixedly connected to the sliding table through a connecting arm, and the limiting box is slidably arranged on the fixed beam.

[0010] Preferably, the limiting box is slidably arranged on the fixed beam through a linear guide rail and a sliding block.

[0011] Preferably, the limiting plate is rotatably connected to the side wall of the limiting box through a hinge shaft.

[0012] Preferably, the blocking piece is arranged in an L-shaped structure, one end of the blocking piece is fixed to the side wall of the limiting box, and the other end of the blocking piece is located outside the limiting plate.

[0013] Preferably, a falling port corresponding to each falling pipe is arranged on the rack, and the inlet end of the falling pipe is connected to the outlet end of the falling port.

[0014] Preferably, the plurality of falling pipes are falling pipe one, falling pipe two and falling pipe three, and the diameters of the falling pipe one, the falling pipe two and the falling pipe three are respectively 11 cm, 14 cm and 17 cm.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1. The present application, by setting a series of falling pipes with different diameter specifications, can flexibly adapt to a variety of sizes of metal balls for falling experiments, so that a set of experimental devices does not need to be equipped for each specific diameter of metal ball, greatly reducing the physical space required, effectively improving the site utilization efficiency, and reducing the equipment configuration and maintenance cost.

[0016] 2. The present application, the experimental device, detects the diameter of the metal ball corresponding to the weight detection, and brings it into the appropriate falling pipe for falling experiment through the limiting box and the sliding table, realizes the function that the metal balls with different diameters can be experimented on the same experimental equipment at the same time, and the experimental efficiency is improved by the simultaneous experiment of multiple metal balls with different diameters.

[0017] 3. The present application, by the design of the limiting box, ensures that the metal ball to be experimented can stably stay above the weight detection table, prevents the metal ball from falling from the weight detection table without affecting the weight detection of the metal ball, and ensures the safety of the experimental environment.

[0018] 4. The present application, the return chute one and the return chute two are arranged obliquely downward from the inlet end to the outlet section, and the inclination angle is set between 5°-10°, which ensures that the metal ball can smoothly slide under the action of gravity, and avoids excessive impact force due to excessive speed. The structure design is reasonable, which ensures the continuous and stable circulation of the metal ball during the experiment, and effectively improves the continuity of the experiment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of the present application Figure 1 (Limiting box above the weight detection table); Figure 2 Structure diagram of the present application Figure 2 (Limiting box above the sliding table); Figure 3 Structure diagram of the present application Figure 3 (Limiting box on one side of the falling port); Figure 4 Structure diagram of the present application Figure 4 (Limiting box above the falling port); Figure 5 Front view of the present application; Figure 6 Another angle structure diagram of the present application; Figure 7 Part of the structure diagram of the present application Figure 1 ; Figure 8 Top view of the present application; Figure 9 This is a partial structural diagram of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the structure of the limiting box of the present invention; Figure 11 This is a schematic diagram of the state of the metal ball entering the limiting box (the limiting box is located above the weight detection platform). Figure 12 This is a schematic diagram of the state of the metal ball after it enters the limiting box (the limiting box is located above the slide).

[0020] In the picture: 1-Screw elevator, 11-Slide rail 2-Weight detection platform, 21-Weighing sensor 3-Slide table, 31-Fixed beam, 32-Connecting arm, 4-Limit box, 41-Limit plate, 42-Blocking component, 5-Platform, 51-Fall crater 61-Fallen pipe section 1, 62-Fallen pipe section 2, 63-Fallen pipe section 3, 601-Straight pipe section, 602-Bend pipe section, 71 - Return slide one, 72 - Return slide two 81-Screw motor one, 82-Screw motor two. Detailed Implementation

[0021] 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.

[0022] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0023] like Figures 1 to 12 As shown, a large metal ball high-altitude drop test device includes a spiral elevator 1, which is arranged obliquely upward from the inlet to the outlet. A slide 11 is provided at the outlet of the spiral elevator 1, and a weight detection platform 2 is provided at the outlet of the slide 11. A slide 3 is slidably provided on one side of the weight detection platform 2. A limit box 4 is slidably provided above the slide 3. The side of the limit box 4 facing the weight detection platform 2 and the bottom surface are open. A limit plate 41 is rotatably provided on the side of the limit box 4 facing the weight detection platform 2. A blocking member 42 is also provided on the limit box 4 to prevent the limit plate 41 from rotating outward.

[0024] It also includes a drive device 1 for moving the slide 3 and a drive device 2 for moving the limit box 4.

[0025] On one side of the weight detection platform 2 and along the sliding direction of the slide table 3, there are multiple drop pipes of different diameters arranged in sequence. The outlets of the multiple drop pipes are connected to return slides, and the outlet end of the return slides is connected to the inlet of the screw conveyor 1.

[0026] In this embodiment, the screw conveyor 1 is existing technology. Its main components include a lifting cylinder and an auger roller rotatably disposed inside the lifting cylinder. The bottom and top of the lifting cylinder are respectively provided with a feed inlet and a discharge outlet. A drive motor for driving the auger roller is installed outside the lifting cylinder. Since the screw conveyor is conventional technology, its specific structure and working principle will not be elaborated upon. This embodiment only requires selecting a screw conveyor size suitable for the specifications of the metal balls to be tested. Specifically, this embodiment is mainly used for lifting large metal balls with a diameter of 7cm-15cm; therefore, the auger roller blade spacing of the selected screw conveyor 1 should be greater than 15cm.

[0027] The screw conveyor 1 is fixed to the ground of the experimental site by a mounting bracket. Generally, a trench is set up in the installation site for easy installation and operation. After the screw conveyor 1 is fixed to the ground, the corresponding drive motor inside the screw conveyor 1 is located in the trench, and the feed port of the screw conveyor 1 is close to the ground.

[0028] Specifically, the inlet end of the slide 11 is connected to the outlet end of the screw conveyor 1, and the slide 11 is arranged obliquely downward from the inlet to the outlet. Thus, the metal ball falling from the outlet of the screw conveyor 1 first enters the slide 11, then slides downward under gravity, and rolls down the slide 11 onto the surface of the weight detection platform 2. In this embodiment, the slide 11 can be connected to the outlet of the screw conveyor 1 by welding, bolting, or other methods, or it can be connected to a bracket supporting the screw conveyor 1. Other fixing methods are also available but will not be elaborated here. The specific fixing method is not limited, and the final fixing method shall prevail.

[0029] In this embodiment, a platform 5 is provided on one side of the spiral elevator 1. The platform 5 is fixed to the test site by a mounting bracket. The platform 5 is provided to facilitate the installation of structures such as the weight detection platform 2, the slide 3, and the drop pipe.

[0030] Specifically, the core component of the weight detection platform 2 is the load cell 21. The load cell converts "force (weight)" into a measurable electrical signal. Commonly, it measures the deformation of an elastic body under force, using strain gauges, capacitors, piezoresistors, or other sensitive elements to convert the minute deformation into voltage / resistance changes, which are then amplified and calibrated to obtain the weight. The load cell 21 is a mature existing technology, and its detailed principle will not be elaborated upon. In this embodiment, it is only necessary to select a load cell with an appropriate range based on the weight of the metal ball being measured. This embodiment preferentially selects a load cell with a range of 0-30kg. For large metal balls with a diameter of 7cm-15cm and a weight between 2-25kg, a load cell with a range of 0-30kg is selected to allow for a weighing margin and ensure that the load cell will not be subjected to prolonged overload measurement.

[0031] It should be noted that the height of the weight detection platform 2 should preferably be flush with or slightly lower than the exit surface of the slide 11 to ensure that the metal ball rolls smoothly onto the weight detection platform 2 after rolling out of the slide 11.

[0032] In one specific implementation, the slide table 3 is slidably mounted on the upper surface of the frame 5 via linear guide rails and sliders. Preferably, the corresponding linear guide rails are fixed to the upper surface of the frame 5, and the corresponding sliders are fixed to the bottom surface of the slide table 3, with the corresponding sliders slidingly engaging with the corresponding linear guide rails. The technique of achieving sliding engagement between two structures via sliders and linear guide rails is a conventional existing technology, and its specific principles will not be elaborated here.

[0033] Preferably, the sliding direction of the slide table 3 is arranged perpendicular to the extension direction of the slide rail 11, and the slide table 3 is located on the side of the weight detection platform 2 away from the slide rail 11.

[0034] In this embodiment, a fixed beam 31 is provided on the top of the slide table 3, and the fixed beam 31 is fixedly connected to the slide table 3 via a connecting arm 32; the limiting box 4 is slidably disposed on the fixed beam 31. It should be noted that when the slide table 3 moves to the side of the weight detection platform 2 (i.e., when the slide table 3 is close to the weight detection platform 2), the moving direction of the limiting box 4 is: moving from the weight detection platform 2 towards the slide table 3, or moving from the slide table 3 towards the weight detection platform 2 (within the direction of...). Figure 1 The direction indicated in the text is vertical.

[0035] Specifically, the limiting box 4 is slidably mounted on the fixed beam 31 via a linear guide rail and a slider. The corresponding linear guide rail is fixed to the bottom surface of the fixed beam 31, and the corresponding slider is fixed to the top of the limiting box 4. The corresponding slider slides in cooperation with the corresponding linear guide rail.

[0036] Specifically, the fixed beam 31 and the connecting arm 32 are integrally set, and the end of the connecting arm 32 away from the fixed beam 31 is fixedly connected to the slide table 3 by means of bolt connection or welding.

[0037] In this embodiment, as Figure 10 As shown, the limiting plate 41 is rotatably connected to the side wall of the limiting box 4 via a hinge shaft, and the side wall of the limiting box 4 is provided with a shaft hole that mates with the hinge shaft; alternatively, a rotatable connection can be formed through a transition fit using hinges or other hinge components. Both shaft connections and rotatable connections achieved through hinges or other hinge components are existing technologies, and their specific configurations will not be elaborated here.

[0038] Specifically, the blocking member 42 is configured in an L-shape. One end of the blocking member 42 is fixed to the side wall of the limiting box 4, and the other end of the blocking member 42 is located outside the limiting plate 41. When the limiting plate 41 is in a natural vertical state, the limiting plate 41 is attached to the inner side of the blocking member 42 (with the side opposite to the blocking member 42 and the limiting plate 41 as the inner side). Thus, when the limiting box 4 is above the weight detection platform 2, as the metal ball rolls from the slide 11 to the surface of the weight detection platform 2, the kinetic energy carried by the metal ball impacts the limiting plate 41 and drives the limiting plate 41 to rotate inward into the limiting box 4 (e.g., ...). Figure 11 As shown), after the metal ball detaches from the contact with the limiting plate 41, the limiting plate 41 returns to its natural vertical state under the action of gravity, blocking the side of the limiting box 4 facing the weight detection platform 2. Under the limiting action of the blocking member 42, even if the metal ball is bounced back by the inner wall of the limiting box 4 and hits the limiting plate 41, the limiting plate 41 will not open outward. In this way, under the limiting action of the limiting plate 41 and the side wall of the limiting box 4, the metal ball is stably restricted in the limiting box 4, and the limiting box 4 does not contact the weight detection platform 2. At this time, the weighing sensor 21 can accurately detect the weight of the metal ball.

[0039] Specifically in this embodiment, such as Figure 4 and Figure 7 As shown, the platform 5 is provided with drop outlets 51 corresponding to multiple drop pipes, and the inlet end of each drop pipe is connected to the outlet end of the drop outlet 51. Preferably, the height of the drop outlet 51 is the same as the height of the weight detection platform 2.

[0040] Specifically, in this embodiment, the multiple drop tubes are arranged sequentially in order of increasing or decreasing diameter. That is, the diameters of the multiple drop tubes are different to accommodate drop tests on metal balls of various diameters. Taking the drop test on large metal balls with diameters between 7cm and 15cm as an example, three drop tubes are set up, named Drop Tube 1 61, Drop Tube 2 62, and Drop Tube 3 63 respectively. The inner diameters of Drop Tube 1 61, Drop Tube 2 62, and Drop Tube 3 63 are set to 11cm, 14cm, and 17cm respectively. The distribution of experimental metal ball diameters applicable to each of the above drop tubes is as follows:

[0041] The applicable rules are as follows: 1. The diameter of the metal ball is smaller than the diameter of the falling pipe to ensure that the metal ball can pass through the pipe.

[0042] 2. The length of the metal ball is twice the diameter of the falling pipe to prevent the metal ball from getting stuck in the falling pipe and to ensure the smoothness and accuracy of the experiment.

[0043] It is important to note that, such as Figure 5 As shown, the drop pipe typically consists of a vertically extending straight pipe section 601 and a curved pipe section 602. The curved pipe section 602 is designed in an S-shape and smoothly connects to the straight pipe section 601. The entire drop pipe is fixed to the frame 5 by a connecting bracket. The shape of the drop pipe used for drop experiments is fixed, and this shape design is a conventional technology. The specific arrangement of the structure will not be described in detail here.

[0044] The principle of using a drop pipe to conduct a drop experiment on metal balls is as follows: Multiple metal balls fall from the inlet of the straight pipe section 601 and enter the curved pipe section 602. Due to the curved nature of the curved pipe section 602, some metal balls initially accumulate inside the curved pipe section 602 and do not come out. As more metal balls accumulate, generally after 5-6 metal balls have accumulated, more metal balls are added to the drop pipe. The subsequent metal balls hit the metal balls accumulated inside the curved pipe section 602. At this time, the kinetic energy of the subsequently added metal balls is transferred sequentially through hitting the metal balls inside the curved pipe section 602 until the metal ball at the front is pushed out of the curved pipe section 602 and enters the return slide. Finally, it re-enters the spiral elevator 1 through the return slide for lifting and the next drop experiment.

[0045] Specifically, in this embodiment, the reflux chute consists of two parts: reflux chute one 71 and reflux chute two 72. The inlet end of reflux chute one 71 connects to the outlet end of the bend 602, and the outlet end of reflux chute one 71 connects to the inlet end of reflux chute two 72. The outlet end of reflux chute two 72 is aligned with the feed inlet of the screw conveyor 1. After being pushed out from the bend 602, the metal ball slides down through reflux chute one 71 and reflux chute two 72 in sequence, finally falling precisely into the screw conveyor 1, thus realizing the cyclic experiment. It should be noted that both reflux chute one 71 and reflux chute two 72 are arranged at an angle downwards from their inlet ends to their outlet ends, with the inclination angle set between 5° and 10°. This ensures that the metal ball can slide smoothly under the action of gravity, while avoiding excessive impact force due to excessive speed. This structural design is reasonable, ensuring the continuous and stable cyclic movement of the metal ball during the experiment, effectively improving the continuity of the experiment.

[0046] Specifically, in this embodiment, the first driving device and the second driving device are any one of the following: screw motor drive, cylinder drive, hydraulic rod drive, and electric actuator drive. Taking the screw motor drive as an example: the first driving device is a screw motor 81 fixed to one side of the fixed beam 31, specifically fixed to one side of the connecting arm 32, and a screw slider that cooperates with the screw of the screw motor 81 is fixed to the top of the limiting box 4; the second driving device is a screw motor 82 fixed to the top of the frame 5, and a screw slider that cooperates with the screw of the screw motor 82 is fixed to the bottom of the slide table 3.

[0047] Lead screw motor drive, cylinder drive, hydraulic rod drive, and electric actuator drive are all existing conventional technologies, and their specific driving principles will not be elaborated here.

[0048] Of course, this embodiment also includes a controller for controlling the corresponding drive motor and drive device one and drive device two in the screw conveyor 1. The weighing sensor 21 is also electrically connected to the controller. The controller is preferably a PLC controller. The PLC control system is a conventional technology. The specific control instructions are based on the corresponding control signals required by the following experimental procedure. The specific control principle will not be elaborated here.

[0049] Working principle: This embodiment mainly provides a method for conducting drop experiments on the same experimental device using metal balls of various diameters.

[0050] Taking the experiment of a metal sphere made of tungsten carbide with a diameter between 7-15 cm as an example:

[0051] At the start of the experiment, all the metal balls were placed in the return slide, with priority given to those in return slide 2 (72). The metal balls then slid into the inlet of the screw conveyor 1 under gravity, and were sequentially lifted into the screw conveyor 1 by the driving action of its spiral blades. At this time, the starting position of the limit box 4 was located above the weight detection platform 2 (e.g., ...). Figure 1 (The given workstation status diagram).

[0052] When the metal ball is lifted to the outlet of the screw conveyor 1, the corresponding metal ball falls into the slide 11, and then rolls through the slide 11 to the top of the weight detection platform 2. At the same time, the metal ball rushes through the limiting plate 41 and enters the interior of the limiting box 4 (e.g., Figure 11 (As shown in the given state diagram) After the metal ball rushes into the limiting box 4, the limiting plate 41 resets under the action of gravity, blocking the entrance of the limiting box 4. At this time, the metal ball is completely limited by the limiting box 4 and cannot leave the weight detection platform 2.

[0053] After the metal ball is positioned on the weight detection platform 2, the load cell 21 detects the pressure and sends the pressure signal back to the controller. The controller then stops the screw conveyor 1, preventing further metal balls from rising. Simultaneously, the weight signal of the metal ball is fed back to the controller, which determines the diameter of the metal ball based on its weight. Subsequently, the lead screw motor 81 begins to rotate, driving the limit box 4 upwards onto the slide table 3. As the limit box 4 moves, it carries the metal ball inside, ultimately moving the metal ball onto the slide table 3 (as shown). Figure 2 (The given workstation status diagram).

[0054] Next, control screw motor 81 to stop operating, and simultaneously control screw motor 82 to start operating. Screw motor 82 moves the slide 3, the metal ball above the slide 3, and the limit box 4 to the side of the corresponding drop outlet 51 where the drop pipe is located (e.g., Figure 3 (The given workstation status diagram).

[0055] Taking a metal ball with a diameter of 11cm as an example, the weight of the metal ball should be between 9.5-10.4kg. After the weight information is transmitted to the controller via an electrical signal, it is determined that the weight of the metal ball falls between 7.3-13.6kg, with a diameter of 10-12cm, and is suitable for a 14cm diameter drop pipe 262.

[0056] Subsequently, the second lead screw motor 82, carrying the slide 3, moves to one side of the drop opening 51 where the second drop pipe 62 is located and stops. Then, the first lead screw motor 81 starts and moves the limit box 4 towards the drop opening 51. At the same time, the metal ball inside the limit box 4 is pushed to the drop opening 51 by the limit box 4, and then the metal ball falls into the second drop pipe 62 (e.g., Figure 4 (The given workstation status diagram).

[0057] Finally, the limit box 4 is reset under the drive of lead screw motor 81 and lead screw motor 82, and the limit box 4 moves back above the weight detection platform 2 to prepare to receive the next metal ball. After the limit box 4 is reset, the screw elevator 1 is restarted to lift the next metal ball until it falls into the slide 3, and the above actions are repeated to complete the drop test of this metal ball.

[0058] In this way, metal balls of different diameters are accurately judged based on their different weights, and are brought into the appropriate drop pipe through the limiting box 4 and the slide 3 for drop experiments. This realizes the function of conducting experiments on the same experimental equipment at the same time for metal balls of different diameters. Firstly, it reduces the experimental space required for the experimental equipment, and secondly, it increases the experimental efficiency by conducting experiments on multiple metal balls of different diameters at the same time.

[0059] It should be noted that the weight detection method used in this embodiment to distinguish metal balls of different diameters is the most accurate and effective detection method. This is because during the drop test, after multiple impacts, some metal balls with quality problems may deform, resulting in a non-standard spherical structure. This causes a change in their diameter, which can be large or small. If traditional sieve-style sorting methods are used to distinguish metal balls of different diameters, errors will occur. Therefore, the weight detection method is the most accurate and effective way to distinguish them.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A large metal ball high-altitude falling experiment device, characterized in that: Including the screw elevator (1), the screw elevator (1) is arranged to be inclined upward from the inlet to the outlet, the outlet of the screw elevator (1) is provided with a slide (11), the outlet of the slide (11) is provided with a weight detection platform (2), one side of the weight detection platform (2) is slidably provided with a sliding table (3), the upper side of the sliding table (3) is slidably provided with a limiting box (4), the side of the limiting box (4) towards the weight detection platform (2) and the bottom surface are open, the side of the limiting box (4) towards the weight detection platform (2) is rotatably provided with a limiting plate (41), the limiting box (4) is further provided with a blocking piece (42) for preventing the limiting plate (41) from rotating outwardly. Further comprising a driving device one for driving the sliding table (3) to move and a driving device two for driving the limiting box (4) to move; A plurality of falling pipes with different diameters are sequentially arranged on one side of the weight detection platform (2) and along the sliding direction of the sliding table (3), the outlet of the plurality of falling pipes is connected with a backflow slide, and the outlet end of the backflow slide is connected with the inlet of the screw elevator (1).

2. The large metal ball high-altitude falling experiment device according to claim 1, characterized in that: A rack (5) is arranged on one side of the screw elevator (1).

3. The large metal ball high-altitude falling experiment device according to claim 2, characterized in that: The sliding table (3) is slidably arranged on the upper surface of the rack (5) through a linear guide rail and a sliding block.

4. The large metal ball high-altitude falling experiment device according to claim 2, characterized in that: A fixed beam (31) is arranged on the top of the sliding table (3), and the fixed beam (31) is fixedly connected with the sliding table (3) through a connecting arm (32); the limiting box (4) is slidably arranged on the fixed beam (31).

5. The large metal ball high-altitude falling experiment device according to claim 4, characterized in that: The limiting box (4) is slidably arranged on the fixed beam (31) through a linear guide rail and a sliding block.

6. The large metal ball high-altitude falling experiment device according to claim 1, characterized in that: The limiting plate (41) is rotatably connected with the side wall of the limiting box (4) through a hinge shaft.

7. The large metal ball high-altitude falling experiment device according to claim 6, characterized in that: The blocking piece (42) is arranged in an L-shaped structure, one end of the blocking piece (42) is fixed on the side wall of the limiting box (4), and the other end of the blocking piece (42) is located outside the limiting plate (41).

8. The large metal ball high-altitude falling experiment device according to claim 2, characterized in that: The rack (5) is provided with a falling port (51) corresponding to each of the plurality of falling pipes, and the inlet end of the falling pipe is connected with the outlet end of the falling port (51).

9. The large metal ball high-altitude falling experiment device according to claim 1, characterized in that: The plurality of falling pipes are respectively a falling pipe one (61), a falling pipe two (62) and a falling pipe three (63), and the inner diameters of the falling pipe one (61), the falling pipe two (62) and the falling pipe three (63) are respectively 11 cm, 14 cm and 17 cm.

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