Microgravity experimental instrument

Abstract

The utility model discloses a microgravity experimental instrument which comprises a vertical framework, and a plurality of friction plates are installed on the front outer wall and the rear outer wall of the vertical framework in the vertical direction. The rising and falling platform body is installed at one end in the vertical framework in a sliding mode, and an experiment cabin is installed at the top end of the rising and falling platform body; and the belt wheel lifting units are installed on the two sides of the interior of the vertical framework and used for driving the lifting platform body to do accelerated lifting motion. According to the utility model, the active brake mechanism and the friction plate are matched to work to control the accelerated rising of the rising and falling platform body and the deceleration of the free falling body, experiment parameters are ensured to be within a required range, meanwhile, the active brake mechanism can increase the safety of an experiment, and especially in an emergency, the active brake mechanism and the friction plate can be used for an emergency stop experiment. And unnecessary damage or danger is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of microgravity simulation in a biological experiment process, in particular to a microgravity experiment instrument. Background Art

[0002] Microgravity lift experiment instrument is an experimental device used to simulate microgravity environment. It is often used in biological experiment related fields to study the effect of gravity on biological processes. Specifically, in biological experiment related fields, microgravity lift experiment instrument is used to study various biological processes, such as cell growth, differentiation, gene expression, protein synthesis, etc. In microgravity environment, these biological processes may be affected to varying degrees, thereby providing biologists with important information about the role of gravity in biological processes. For example, in microgravity environment, cell growth and differentiation may be affected to varying degrees. Some studies have shown that in microgravity environment, the differentiation rate of stem cells may slow down, while some types of cells may show faster growth rate.

[0003] This type of device usually consists of a high tower and related detection equipment. The vertical structure of the high tower provides a relatively cheap and controllable microgravity environment. By conducting experiments in the tower, scientists can observe and record the behavior of objects under microgravity conditions. For example, the microgravity experimental device disclosed in the authorization announcement number CN202795838U includes a support frame, a vertical guide rail fixed to the support frame, and a landing platform that can move up and down along the vertical guide rail, and a lifting device for controlling the movement of the landing platform. The vertical guide rail is connected to the landing platform through a rolling device. The rolling device includes a bearing connecting the landing platform and the vertical guide rail, and a positioning shaft seat with one end connected to the bearing and the other end vertically fixed to the edge of the landing platform. In this technical solution, when the motor drives When the pulling rope moves upward, the flange fixed at the lower end of the pulling rope and located under the landing platform drives the landing platform to move upward, and stops when it moves to the position of the electromagnet assembly. At this time, the landing platform is adsorbed by the electromagnet assembly and remains stationary in the air. After the pulling rope returns to its original position, the electromagnet assembly stops adsorbing the landing platform, allowing it to fall freely. However, this technical solution only uses a buffer cylinder to provide buffering support for the landing platform. During this process, the landing platform does not perform active braking action. Without active braking action, the control ability of the experimental device is limited, especially when it is necessary to change speed or stop quickly. This makes it impossible to make necessary adjustments during the experiment, such as in the event of a failure or emergency, thereby limiting the complexity and diversity of the experiment. Utility Model Content

[0004] The purpose of the utility model is to provide a microgravity experiment instrument to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a microgravity experiment instrument, comprising:

[0006] A vertical frame, wherein the front and rear outer walls of the vertical frame are both provided with a plurality of friction plates mounted in the vertical direction;

[0007] A landing platform body, wherein the landing platform body is slidably mounted on one end of the vertical frame, and an experimental cabin is mounted on the top of the landing platform body;

[0008] A pulley lifting unit, which is installed on both sides of the vertical frame and is used to drive the landing platform body to perform accelerated lifting motion;

[0009] A support plate is fixed at a corner position at the top of the landing platform body, an active braking mechanism is installed on the outer wall of the support plate on one side close to the vertical reference line of the vertical frame, a PLC control panel is installed on the outer wall of one side of the vertical frame, and the output end of the PLC control panel is electrically connected to the pulley lifting unit and the input end of the active braking mechanism.

[0010] Preferably, vertical rails are fixed on both inner walls of the vertical frame, U-shaped blocks that slide with the vertical rails are installed on both outer walls of the landing platform body, and pulleys that roll with the outer walls of the vertical rails are installed on the inner walls of the U-shaped blocks.

[0011] Preferably, the pulley lifting unit includes a main shaft and a secondary shaft symmetrically installed on both sides of the top of the vertical frame, and a pulley lifting structure 1 and a pulley lifting structure 2 arranged on both sides of the inside of the vertical frame. The pulley lifting unit also includes a reduction motor installed on the top of the vertical frame, and a pulley transmission structure 1 and a pulley transmission structure 2 installed at the output end of the reduction motor. The reduction motor drives the main shaft and the secondary shaft to rotate through the pulley transmission structure 1 and the pulley transmission structure 2 respectively, and the input end of the reduction motor is electrically connected to the output end of the PLC control panel.

[0012] Preferably, the pulley lifting structure comprises a driving wheel installed at one end of the main shaft surface and a driven wheel rotatably installed on the inner wall of one side of the vertical frame, and a belt is wound between the driving wheel and the driven wheel.

[0013] Preferably, the active braking mechanism includes a vertical plate installed on the outer wall of one side of the support plate, and support arms symmetrically installed at both ends of the vertical plate surface, one end of the support arm is hinged with a brake plate, and both ends of the vertical plate surface are hinged with a cylinder, the top end of the cylinder piston rod is hinged to the outer wall of one side of the brake plate, and the input end of the cylinder is electrically connected to the output end of the PLC control panel.

[0014] Preferably, the friction plate is made of alloy steel.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the microgravity experiment instrument is provided with an active braking mechanism, a friction plate and other structures that cooperate with each other, and the pulley lifting unit simulates the accelerated rising process of the landing platform body in a microgravity environment, and the active braking mechanism and the friction plate work together to control the accelerated rising of the landing platform body and the deceleration of the free fall, ensuring that the parameters of the experiment are within the required range. At the same time, the active braking mechanism can increase the safety of the experiment, especially in emergency situations, they can be used to stop the experiment urgently to avoid unnecessary damage or danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0020] In the figure: 1. vertical frame; 2. friction plate; 3. reduction motor; 301. pulley transmission structure 1; 302. pulley transmission structure 2; 4. pulley lifting structure 2; 5. pulley lifting structure 1; 6. main shaft; 7. secondary shaft; 8. landing platform body; 9. experimental cabin; 10. support plate; 11. active braking mechanism; 1101. vertical plate; 1102. support arm; 1103. brake plate; 1104. cylinder; 12. PLC control panel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a microgravity experiment instrument, comprising a vertical frame 1, a plurality of friction plates 2 are installed on the front and rear outer walls of the vertical frame 1 in the vertical direction; a landing platform body 8, the landing platform body 8 is slidably installed at one end inside the vertical frame 1, and an experimental cabin 9 is installed on the top of the landing platform body 8;

[0023] The belt wheel lifting unit is installed on both sides of the vertical frame 1 to drive the landing platform body 8 to accelerate the lifting movement;

[0024] A support plate 10 is fixed at a corner position at the top of the landing platform body 8. An active brake mechanism 11 is installed on the outer wall of the support plate 10 close to the vertical reference line of the vertical frame 1. A PLC control panel 12 is installed on the outer wall of one side of the vertical frame 1. The output end of the PLC control panel 12 is electrically connected to the pulley lifting unit and the input end of the active brake mechanism 11.

[0025] Vertical rails are fixed on both inner walls of the vertical frame 1, and U-shaped blocks that slide with the vertical rails are installed on both outer walls of the landing platform body 8, and pulleys that roll with the outer wall of the vertical rails are installed on the inner wall of the U-shaped block;

[0026] The pulley lifting unit includes a main shaft 6 and a secondary shaft 7 symmetrically installed on both sides of the top of the vertical frame 1, and a pulley lifting structure 1 5 and a pulley lifting structure 2 4 arranged on both sides inside the vertical frame 1. The pulley lifting unit also includes a reduction motor 3 installed on the top of the vertical frame 1, and a pulley transmission structure 1 301 and a pulley transmission structure 2 302 installed at the output end of the reduction motor 3. The reduction motor 3 drives the main shaft 6 and the secondary shaft 7 to rotate through the pulley transmission structure 1 301 and the pulley transmission structure 2 302 respectively. The input end of the reduction motor 3 is electrically connected to the output end of the PLC control panel 12. When the staff turns on the reduction motor 3 to work, the reduction motor 3 drives the pulley lifting structure 2 4 and the pulley lifting structure 1 5 to work synchronously through the pulley transmission structure 1 301 and the pulley transmission structure 2 302, and the pulley lifting structure 2 4 and the pulley lifting structure 1 5 drive the landing platform body 8, the experimental cabin 9 and the carrier to accelerate and rise;

[0027] The pulley lifting structure 1 5 includes a driving wheel installed at one end of the main shaft 6 surface and a driven wheel rotatably installed on the inner wall of one side of the vertical frame 1, and a belt is wound between the driving wheel and the driven wheel;

[0028] The reduction motor 3 drives the main shaft 6 and the secondary shaft 7 to rotate respectively through the pulley transmission structure 1 301 and the pulley transmission structure 2 302, and the main shaft 6 and the secondary shaft 7 respectively drive the pulley lifting structure 1 5 and the pulley lifting structure 2 4 to work, and the pulley lifting structure 1 5 and the pulley lifting structure 2 4 drive the landing platform body 8, the experimental cabin 9 and other components to lift and lower together, and the lifting process is stable and without shaking, which ensures the experimental stability of the carrier;

[0029] The active braking mechanism 11 includes a vertical plate 1101 installed on the outer wall of one side of the support plate 10, and support arms 1102 symmetrically installed at both ends of the surface of the vertical plate 1101, one end of the support arm 1102 is hinged with a brake plate 1103, and both ends of the surface of the vertical plate 1101 are hinged with a cylinder 1104, the top of the piston rod of the cylinder 1104 and the outer wall of one side of the brake plate 1103 are hinged to each other, and the input end of the cylinder 1104 is electrically connected to the output end of the PLC control panel 12. When the tester needs to perform a braking action, the cylinder 1104 pushes the brake plate 1103 to flip, and the brake plate 1103 is tightly pressed on the friction plate 2, and the friction between the brake plate 1103 and the friction plate 2 causes the speed of the landing platform body 8 to decrease, thereby allowing the experimenter to customize the acceleration and deceleration process according to different scientific research needs;

[0030] The friction plate 2 is made of alloy steel. Alloy steel generally has excellent strength and hardness, which enables the friction plate 2 to perform well under high load and high friction conditions.

[0031] When the embodiment of the present application is in use, the staff first places the carrier to be subjected to the microgravity experiment in the experimental cabin 9, and then the staff turns on the reduction motor 3 to work. The reduction motor 3 drives the pulley lifting structure 2 4 and the pulley lifting structure 1 5 to work synchronously through the pulley transmission structure 1 301 and the pulley transmission structure 2 302. The pulley lifting structure 2 4 and the pulley lifting structure 1 5 drive the landing platform body 8, the experimental cabin 9 and the carrier to accelerate and rise. At this time, the active braking mechanism 11 is in a released state, thereby simulating the accelerated ascent process in a microgravity environment. When the landing platform body 8 reaches the required height, the reduction motor 3, the pulley lifting structure 2 4 and the pulley lifting structure 1 5 will keep the landing platform body 8 at a constant speed to simulate the microgravity environment. At this stage, the object will be in a free floating state and will not be affected by the earth's gravity. The experimenter can observe and record the object. The behavior of the object under microgravity conditions is studied to study its characteristics in terms of cell growth, differentiation, gene expression, protein synthesis, etc. At the end of the experiment, the landing platform body 8 will be decelerated and descended through the active braking mechanism 11 and the friction plate 2. Similarly, the active braking mechanism 11 can accurately control the descent speed and acceleration. This process simulates the free fall acceleration process of the object in a microgravity environment. The experimenter can continue to monitor and record the motion state and characteristics of the object. After the experiment is completed, the experimenter will analyze and process the collected data. In this process, the active braking mechanism 11 and the friction plate 2 can accurately control the acceleration and deceleration of the landing platform body 8 during free fall to ensure that the experimental parameters are within the required range. At the same time, the active braking mechanism 11 can increase the safety of the experiment. Especially in emergency situations, they can be used to stop the experiment urgently to avoid unnecessary damage or danger.

Claims

1. A microgravity experiment apparatus, characterized in that: include: A vertical frame (1), wherein a plurality of friction plates (2) are mounted on the front and rear outer walls of the vertical frame (1) in a vertical direction; A landing platform body (8), wherein the landing platform body (8) is slidably mounted on one end of the interior of the vertical frame (1), and an experimental cabin (9) is mounted on the top of the landing platform body (8); A belt wheel lifting unit, the belt wheel lifting unit being installed on both sides of the interior of the vertical frame (1) and used for driving the lifting platform body (8) to perform accelerated lifting motion; A support plate (10) is fixed at a corner position at the top of the landing platform body (8); an active brake mechanism (11) is installed on the outer wall of the support plate (10) on one side close to the vertical reference line of the vertical frame (1); a PLC control panel (12) is installed on the outer wall of one side of the vertical frame (1); the output end of the PLC control panel (12) is electrically connected to the pulley lifting unit and the input end of the active brake mechanism (11).

2. A microgravity experiment apparatus according to claim 1, characterized in that: Vertical rails are fixed on both inner walls of the vertical frame (1), and U-shaped blocks that slide with the vertical rails are installed on both outer walls of the lifting platform body (8), and pulleys that roll with the outer wall of the vertical rails are installed on the inner wall of the U-shaped block.

3. A microgravity experiment apparatus according to claim 1, characterized in that: The pulley lifting unit comprises a main shaft (6) and a secondary shaft (7) symmetrically mounted on both sides of the top of a vertical frame (1), and a pulley lifting structure 1 (5) and a pulley lifting structure 2 (4) arranged on both sides inside the vertical frame (1). The pulley lifting unit also comprises a reduction motor (3) mounted on the top of the vertical frame (1), and a pulley transmission structure 1 (301) and a pulley transmission structure 2 (302) mounted on the output end of the reduction motor (3). The reduction motor (3) drives the main shaft (6) and the secondary shaft (7) to rotate respectively through the pulley transmission structure 1 (301) and the pulley transmission structure 2 (302). The input end of the reduction motor (3) is electrically connected to the output end of the PLC control panel (12).

4. A microgravity experiment apparatus according to claim 3, characterized in that: The pulley lifting structure (5) comprises a driving wheel mounted on one end of the main shaft (6) surface and a driven wheel rotatably mounted on the inner wall of one side of the vertical frame (1), and a belt is wound between the driving wheel and the driven wheel.

5. The microgravity experiment apparatus according to claim 1, characterized in that: The active brake mechanism (11) comprises a vertical plate (1101) mounted on an outer wall of one side of a support plate (10), and support arms (1102) symmetrically mounted at both ends of the surface of the vertical plate (1101), one end of the support arm (1102) being hinged with a brake plate (1103), and both ends of the surface of the vertical plate (1101) being hinged with a cylinder (1104), the top end of a piston rod of the cylinder (1104) being hinged with an outer wall of one side of the brake plate (1103), and the input end of the cylinder (1104) being electrically connected to the output end of a PLC control panel (12).

6. The microgravity experiment apparatus according to claim 1, characterized in that: The friction plate (2) is made of a component made of alloy steel.

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