Space weightlessness simulation device

Abstract

According to the space weightlessness simulation device, a beam type lifting device is arranged on a truss, the beam type lifting device comprises an X-direction operation mechanism, a Y-direction operation mechanism is arranged on the X-direction operation mechanism, a Z-direction operation mechanism is arranged on the Y-direction operation mechanism, and a simulation device is arranged on the Z-direction operation mechanism in a sliding mode; the simulation device comprises a sliding block arranged on the Z-direction running mechanism in a sliding manner, a spherical electromagnetic chuck with high smoothness is fixedly arranged on the sliding block, and an experimental object is adsorbed on the spherical electromagnetic chuck; a tension sensor is arranged on the sliding block, is used for measuring the weight of an experimental object, and is connected with a lifting capacity precise control device. According to the utility model, the truss and the lifting device are adopted, so that the requirement of space millimeter-level positioning is met; in the operation process of the whole device, the lifting capacity always counteracts the self weight of an experimental object, the device and the experimental object accurately follow up, and the state target of simulating space weightlessness is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of space equipment, and in particular relates to a space weightlessness simulation device, which is suitable for a space equipment test field. Background Art

[0002] China's pursuit of aerospace technology has a long history, and behind it lies a profound national significance and consideration of scientific and technological competition. As the world enters the 21st century, aerospace technology plays an increasingly important role in the country's comprehensive strength and international status. As a country with a population of 1.3 billion and a rapidly developing economy, China is well aware that aerospace technology is one of the key factors in the actual modernization of the country. By mastering and developing manned space technology, China can enhance its international influence, demonstrate its scientific and technological strength, and compete with the world's advanced countries in exploring unknown areas.

[0003] However, no device in the prior art can simulate the state of weightlessness in space. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to design a device which can move with the experimental object and can always keep the state of offsetting the gravity of the experimental object to achieve the state of simulating weightlessness in space.

[0005] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0006] A space weightlessness simulation device comprises a truss, a beam-type lifting device is arranged on the truss, the beam-type lifting device comprises an X-direction running mechanism, a Y-direction running mechanism is arranged on the X-direction running mechanism, a Z-direction running mechanism is arranged on the Y-direction running mechanism, and a simulation device is slidably arranged on the Z-direction running mechanism;

[0007] The simulation device includes a slider slidably arranged on a Z-direction running mechanism, a spherical electromagnetic suction cup with high smoothness is fixedly arranged on the slider, the spherical electromagnetic suction cup is connected to a negative pressure pump through an air pipe, and an electromagnetic valve is arranged on the air pipe; and an experimental object is adsorbed on the spherical electromagnetic suction cup; a tension sensor is arranged on the slider, the tension sensor measures the weight of the experimental object, and the tension sensor is connected to a lifting weight precision control device;

[0008] Monitoring sensors are arranged at the four corners of the truss;

[0009] The lifting weight precision control device, X-direction operating mechanism, Y-direction operating mechanism and Z-direction operating mechanism are all connected to the electrical control system;

[0010] The slider is connected to the first pull plate through the first pin, the first pull plate is connected to the tension sensor through the second pin, the lower end of the tension sensor is connected to the third pin, the third pin is connected to the fourth pin through the second pull plate, the fourth pin is connected to the anti-rotation sleeve, and the bottom of the anti-rotation sleeve is connected to the spherical electromagnetic suction cup through the mounting hole.

[0011] The truss comprises a rectangular frame and a support frame arranged under the rectangular frame, and an X-direction track is arranged on the rectangular frame.

[0012] The monitoring sensor is an image sensor, or a travel sensor respectively arranged on the X-direction running mechanism, the Y-direction running mechanism and the Z-direction running mechanism.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a truss and a lifting device to meet the requirements of millimeter-level positioning in space; during the operation of the entire device, the lifting weight always offsets the weight of the experimental object itself and moves accurately with the experimental object, achieving the goal of simulating the state of weightlessness in space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 is a structural diagram of the simulation device;

[0016] Figure 3 This is the structural diagram of the tension sensor. DETAILED DESCRIPTION

[0017] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] like Figure 1As shown, a space weightlessness simulation device includes a truss 1, the truss 1 includes a rectangular frame 11 and a support frame 12 arranged under the rectangular frame 11, and an X-direction track 13 is arranged on the rectangular frame 11.

[0020] A beam-type lifting device 2 is arranged on the truss 1, and the beam-type lifting device 2 includes an X-direction operating mechanism 21, a Y-direction operating mechanism 22 is arranged on the X-direction operating mechanism 21, a Z-direction operating mechanism 23 is arranged on the Y-direction operating mechanism 22, and a simulation device 5 is slidably arranged on the Z-direction operating mechanism 23.

[0021] Furthermore, the X-direction operating mechanism 21, the Y-direction operating mechanism 22, and the Z-direction operating mechanism 23 all include a servo motor and a rack-and-pinion mechanism driven by the servo motor. Specifically, the X-direction operating mechanism 21 includes an X-direction servo motor, which drives the X-direction rack-and-pinion mechanism, and a Y-direction fixed block is provided on the X-direction rack-and-pinion mechanism, and the Y-direction fixed block is connected to the Y-direction operating mechanism 22; the Y-direction operating mechanism 22 includes a Y-direction servo motor, which drives the Y-direction rack-and-pinion mechanism, and a Z-direction fixed block is provided on the Y-direction rack-and-pinion mechanism, and the Z-direction fixed block is connected to the Z-direction operating mechanism 23. Therefore, the utility model can achieve millimeter-level positioning, and the lifting and lowering in the Z-axis direction are positioned by the servo motor and the rack-and-pinion, and the positioning accuracy also reaches the millimeter level.

[0022] like Figure 2 As shown, the simulation device 5 includes a slider 51 slidably arranged on the Z-direction running mechanism 23, a spherical electromagnetic sucker 52 with high smoothness is fixedly arranged on the slider 51, the spherical electromagnetic sucker 52 is connected to the negative pressure pump through an air pipe, and an electromagnetic valve is arranged on the air pipe; and an experimental object 53 is adsorbed on the spherical electromagnetic sucker 52, so that the experimental object 53 can rotate around the spherical electromagnetic sucker 52 at will. In addition, a tension sensor is arranged on the slider 51, the tension sensor measures the weight of the experimental object 53, and the tension sensor is connected to the lifting weight precision control device 3.

[0023] like Figure 3 As shown, the slider 51 is connected to the first pull plate 512 through the first pin 511, the first pull plate 512 is connected to the tension sensor 514 through the second pin 513, the lower end of the tension sensor 514 is connected to the third pin 515, the third pin 515 is connected to the fourth pin 517 through the second pull plate 516, the fourth pin 517 is connected to the anti-rotation sleeve 518, and the bottom of the anti-rotation sleeve 518 is connected to the spherical electromagnetic suction cup 52 through the mounting hole. In this way, the experimental object 53 is adsorbed below the spherical electromagnetic suction cup 52, and the slider 51 is suspended by the Z-direction running mechanism 23, and the tension sensor 514 in the middle can measure the weight of the experimental object 53.

[0024] Monitoring sensors are provided at the four corners of the truss 1, and the monitoring sensors detect the coordinates of the experimental object 53. The monitoring sensors are connected to the electrical control system 4. It should be noted that the monitoring sensor here can be an image sensor, which captures the image of the experimental object 53 through the image sensor, and obtains the coordinates of the experimental object 53 through image recognition. Alternatively, the monitoring sensor can also be a travel sensor respectively provided on the X-direction running mechanism 21, the Y-direction running mechanism 22 and the Z-direction running mechanism 23, and the coordinates of the experimental object 53 are directly obtained through the travel sensor. In this way, the multi-angle monitoring sensing device of the utility model is constituted by the monitoring sensor, and the multi-angle monitoring sensing device can achieve the millimeter-level spatial positioning accuracy of the experimental object, and can achieve the precise movement of the lifting device with the experimental object.

[0025] The lifting weight precision control device 3 , the X-direction operating mechanism 21 , the Y-direction operating mechanism 22 and the Z-direction operating mechanism 23 are all connected to the electrical control system 4 .

[0026] The working principle of the utility model is:

[0027] According to the weight of the experimental object 53 detected by the tension sensor 514, the electrical control system 4 controls the lifting weight of the beam-type lifting device 2, thereby setting the lifting weight value to the weight of the experimental object 53 itself. If it exceeds or falls below the set value, the beam-type lifting device 2 will drop or rise accordingly. In this way, the lifting weight is always kept consistent with the weight of the experimental object 53 itself during operation, and the lifting weight always offsets the weight of the experimental object 53 itself, and moves accurately with the experimental object 53, so as to simulate the weightlessness state in space.

[0028] In summary, the utility model adopts a truss and beam type lifting device 2 to meet the requirements of millimeter-level spatial positioning.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A space weightlessness simulation device, characterized in that: The invention comprises a truss (1), a beam-type lifting device (2) is arranged on the truss (1), the beam-type lifting device (2) comprises an X-direction operating mechanism (21), a Y-direction operating mechanism (22) is arranged on the X-direction operating mechanism (21), a Z-direction operating mechanism (23) is arranged on the Y-direction operating mechanism (22), and a simulation device (5) is slidably arranged on the Z-direction operating mechanism (23); The simulation device (5) comprises a slider (51) slidably arranged on a Z-direction running mechanism (23); a spherical electromagnetic suction cup (52) with high smoothness is fixedly arranged on the slider (51); the spherical electromagnetic suction cup (52) is connected to a negative pressure pump via an air pipe, and an electromagnetic valve is arranged on the air pipe; and an experimental object (53) is adsorbed on the spherical electromagnetic suction cup (52); a tension sensor is arranged on the slider (51), the tension sensor measures the weight of the experimental object (53), and the tension sensor is connected to the lifting weight precision control device (3); Monitoring sensors are arranged at the four corners of the truss (1); The lifting weight precision control device (3), the X-direction operating mechanism (21), the Y-direction operating mechanism (22) and the Z-direction operating mechanism (23) are all connected to the electrical control system (4); The slider (51) is connected to a first pull plate (512) via a first pin shaft (511), the first pull plate (512) is connected to a tension sensor (514) via a second pin shaft (513), a third pin shaft (515) is connected to the lower end of the tension sensor (514), the third pin shaft (515) is connected to a fourth pin shaft (517) via a second pull plate (516), the fourth pin shaft (517) is connected to an anti-rotation sleeve (518), and the bottom of the anti-rotation sleeve (518) is connected to a spherical electromagnetic suction cup (52) via a mounting hole.

2. A space weightlessness simulation device according to claim 1, characterized in that: The truss (1) comprises a rectangular frame (11) and a support frame (12) arranged below the rectangular frame (11), and an X-direction track (13) is arranged on the rectangular frame (11).

3. A space weightlessness simulation device according to claim 1, characterized in that: The monitoring sensor is an image sensor, or a travel sensor respectively arranged on the X-direction running mechanism (21), the Y-direction running mechanism (22) and the Z-direction running mechanism (23).

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