NL2032752A

NL2032752A - Multi-degree-of-freedom animal centrifuge with four rotating arms

Info

Publication number: NL2032752A
Application number: NL2032752A
Authority: NL
Inventors: Shi Fei; Hu Zebing; Zhao Jiangdong; Zhang Shu; Gao Feng; Xue Tong; Gao Yuan; Zhou Haobin; Sun Quan
Original assignee: Air Force Medical Univ Of Peoples Liberation Army
Priority date: 2021-09-15
Filing date: 2022-08-15
Publication date: 2023-03-24
Also published as: CN113892441B; NL2032752B1; CN113892441A

Abstract

The present invention relates to a multi-degree-of—freedom animal centrifuge with four rotating arms. The animal centrifuge includes a transmission supporting system, a four-rotating-arm system and a biaXial-rotating animal carrying platform system; the transmission supporting system supports the four-rotating-arm system to rotate along a horizontal ground by taking a rotating main shaft as a circle center under the action of power; the four-rotating-arm system includes the biaXial-rotating animal carrying platform system; a swing plate in the biaXial-rotating animal carrying platform system can swing in a reciprocating manner around an aXis of a short shaft under the action of a step motor push rod. An electric rotating platform is mounted on the swing plate; and can drive an animal ﬁxing platform to rotate. A real ﬂight environment is simulated by compounding and superimposing the three kinds of motions.

Description

MULTI-DEGREE-OF-FREEDOM ANIMAL CENTRIFUGE WITH FOUR

ROTATING ARMS

TECHNICAL FIELD

[OI] The present invention belongs to medical experimental equipment for centrifuging of animals, which is used for performing a medical experiment for centrifuging animals, and relates to a multi-degree-of-freedom animal centrifuge with four rotating arms.

BACKGROUND ART

[02] With the vigorous development of the aerospace industry in China and the gradual completion of China's space station plans, the maneuverability and combat performance of a new generation of fighter jets have become higher, and manned spacecrafts and launch vehicles are launched more frequently. Therefore, if a pilot is exposed to a high G-value environment for a long time, it may cause problems such as G-force induced Loss of

Consciousness (G-LOC) of the pilot, which will seriously endanger the life of the pilot and affect a flight mission. If a high G-value experimental study is carried out on a pilot, study materials after the experiment are difficult to obtain and the pilot's health is also seriously damaged.

[03] Therefore, animals are used to replace people. The body of an animal is centrifuged to study a series of adaptive changes in various physiological systems in the body of the animal, so as to provide an experimental basis for further study. This is also an important means in aerospace medical study. Both an animal centrifuge and a human centrifuge belong to biological centrifuges. However, compared with human, animals have higher tolerance and can withstand a higher acceleration and an acceleration change rate.

Therefore, the animal centrifuge has a higher requirement for the comprehensive performance than that of the human centrifuge. As important equipment in the aeronautical medical study, the animal centrifuge is of great significance for medical researchers to build a +Gz acceleration animal model and carry out a pathological study under an aeronautical physiological condition.

SUMMARY

[04] Technical problems to be solved

[05] In order to avoid the shortcomings in the prior art, the present invention provides a multi-degree-of-freedom animal centrifuge with four rotating arms. For the problems in centrifugation of an animal in an aeronautical medical experiment, a multi-degree-of-freedom animal centrifuge with four rotating arms is designed. The animal centrifuge has the advantages of simple structure, reliable work, low running power consumption and the like, is used in an experimental study on centrifugation of an animal, and is used for solving the problems in centrifugation of an animal in the aeronautical medical study.

[06] Technical solution

[07] A multi-degree-of-freedom animal centrifuge with four rotating arms is characterized by comprising a supporting system 1, a four-rotating-arm system 2 and a biaxial-rotating animal carrying platform system 3 mounted at an arm end, the supporting system 1 includes a base 8, a main motor 6, a transmission shaft 5, a driving gear 4, a speed reducer 7, a static support 10, a rotary support 11 and a rotating main shaft 12; the main motor 6, the speed reducer 7 and the static support 10 are fixed on the base 8; the speed reducer 7 is connected to the main motor 6; the speed reducer 7 is connected to the transmission shaft 5; the transmission shaft 5 is connected to the driving gear 4; the driving gear 4 1s in meshing connection with a gear of the rotary support 11; an inner ring 32 of the rotary support 11 is connected to the static support 10; an outer ring 31 is connected to a bottom of the rotating main shaft 12; the rotating main shaft 12 is connected to an axis of the four-rotating-arm system 2; the biaxial-rotating animal carrying platform system 3 comprises an animal fixing platform 18, an L plate 19, an L plate 21, an electric rotating platform 22, a swing plate 23, a bearing pedestal 24, an animal platform seat 26, a rotating motor 34 and a push rod motor 33; the animal fixing platform 18 is fixed on the animal platform seat 26; a lower end surface of the animal platform seat 26 is connected with the electric rotating platform 22, and the electric rotating platform 22 is placed on the swing plate 23; two ends of the swing plate 23 are connected to the bearing pedestal 24 through a short shaft 25; the swing plate 23 is connected to a push rod 20 of a step motor 33 through the upper L plate 19, and a lower end of the push rod is connected to the lower L plate 21; a top end of the four-rotating-arm system 2 is provided with a concave vertical stand 14 and a reinforcing plate 13 with a concave bottom; through holes in two sides of the vertical stand 14 are connected with the two bearing pedestals 24 of the biaxial-rotating animal carrying platform system 3; the reinforcing plate 13 is connected to the lower L plate of the biaxial-rotating animal carrying platform system 3; the four-rotating-arm system 2 drives the biaxial-rotating animal carrying platform system 3 to rotate along a horizontal ground by taking the rotating main shaft 12 as a circle center under the action of the main motor 6; the animal fixing platform 18 rotates under the action of the rotating motor 34; by the push rod motor 33, a step motor push rod 20 extends and retracts to drive the swing plate 23 and the animal fixing platform 18 to do pitching swinging; and an experimental flight environment is simulated by compounding and superimposing the three kinds of motions.

[08] A control cabinet 17 is fixed at middle parts of the four rotating arms; a cabinet door direction is located between two adjacent rotating arms; the control cabinet 17 is fixed with the rotating arms through a triangular mounting plate 16; a control system is arranged in the control cabinet 17; and the control system is electrically connected to the main motor 6, the push rod motors 33 on the four arms, and the rotating motor 34.

[09] The rotating main shaft 12 includes a square shaft 28, an upper mounting plate 27, a lower mounting plate 29 and a bottom plate 30; the square shaft 28 is fixedly provided with the upper mounting plate 27, the lower mounting plate 29 and the bottom plate 30 from top to bottom; the upper mounting plate 27 is fixedly connected to a top surface of an inner end of the rotating arm 15; a side surface of an extending end of the lower mounting plate 29 is provided with a mounting hole of the rotating arm 15; two side surfaces of the rotating arm 15 are fixedly connected to the lower mounting plate 29; and the bottom plate is fixedly connected to the outer ring 31 of the rotary support 11.

[10] The animal fixing platform 18 is of a rectangular symmetric structure; a mounting via hole for the animal platform seat 26 is formed in a center circular region of the animal fixing platform 18; the animal fixing platform 18 is provided with uniformly distributed elongated holes in other parts except the center circular region; and peripheral edges of the animal fixing platform 18 are folded.

[11] The rotating arm 15 has a C-shaped section, with a downward opening.

[12] Each of the top surface and the two side surfaces of the rotating arm 15 is provided with an elliptical hole.

[13] Beneficial effects

[14] The multi-degree-of-freedom animal centrifuge with four rotating arms provided by the present invention includes a transmission supporting system, a four-rotating-arm system and a biaxial-rotating animal carrying platform system; the transmission supporting system supports the four-rotating-arm system to rotate along a horizontal ground by taking a rotating main shaft as a circle center under the action of power; an upper part of the four-rotating-arm system includes a control cabinet; the biaxial-rotating animal carrying platform system is arranged at an outer end of the four-rotating-arm system and is connected to the outer end through a bearing pedestal; a swing plate in the biaxial-rotating animal carrying platform system can swing in a reciprocating manner around an axis of a short shaft under the action of a step motor push rod. An electric rotating platform is mounted on the swing plate, and can drive an animal fixing platform to rotate. By compounding and superimposing the three kinds of motions to simulate a real flight environment and satisfy a centrifugal acceleration and a centrifugal acceleration change rate required by an experiment, the present invention has the advantages of simple structure, reliable work, low running power consumption and the like, is used in an experimental study on centrifugation of an animal, and 1s used for solving the problems in centrifugation of an animal in an aeronautical medical study.

[15] Compared with the prior art, the present invention at least has the following beneficial effects: The biggest advantage of the four-rotating-arm system of the present invention is that two groups of contrast experiments can be carried out at one time, and one group contains two rotating arms. Experimental data of each time is composed of two pieces of animal fixing platform data of diagonals. In this way, the experimental efficiency is greatly improved, and it helps a researcher to better design an experimental scheme.

When the structure meets a strength requirement, the rotating arms are formed by bending a steel plate. A plate is bent into a C shape, and the elliptical holes are formed in the top and the two sides according to a certain ratio, so that the weight of each rotating arm 1s 5 reduced, and the wind resistance is reduced. Reinforcing ribs are provided at tail ends of the rotating arms to improve the rigidity of the rotating arms. Such a structure is simple and good in integrality and has a low welding machining requirement when it is compared with a truss structure. Furthermore, in a running process, the phenomenon that this structure will shake due to non-uniform weight distribution caused by welding is avoided, and the accuracy and the reliability of the rotating arms are guaranteed.

[16] In the biaxial-rotating animal carrying platform system, the step motor push rod is fixed to the swing plate and the rotating arms respectively through the two adjustable L plates, so that an extreme angle of swing can be changed by adjusting size parameters of the two L plates. By the adoption of the step motor push rod, the structure is simple, so that the complicated circular motion is converted into a simple linear motion. Furthermore, the step motor push rod has a limiting function, so that the safety and reliability of equipment are improved. The elongated holes are uniformly distributed on the animal fixing platform, so as to reduce the weight as much as possible and reduce the moment of inertia; and to conveniently fix an experimental animal by a binding method. The peripheral edges of the animal fixing platform are folded to improve the rigidity of the platform, so that the platform is hard to deform during use and working.

BRIEF DESCRIPTION OF THE DRAWINGS

[17] FIG. 1is a schematic diagram of an overall structure of the present invention;

[18] FIG. 2 is a schematic diagram of a transmission supporting system in the present invention;

[19] FIG. 3 is a schematic diagram of a four-rotating-arm system in the present invention;

[20] FIG. 4 is a schematic diagram of a biaxial-rotating animal carrying platform system in the present invention;

[21] FIG. 5 is a schematic diagram of a rotating main shaft in the present invention;

[22] FIG. 6is a schematic diagram of a rotary support in the present invention; and

[23] FIG. 7 1s a partially schematic structural diagram of a biaxial-rotating animal carrying platform system in the present invention.

[24] In the drawings: 1: transmission supporting system; 2: four-rotating-arm system; 3: biaxial-rotating animal carrying platform system; 4: driving gear; 5: transmission shaft; 6: main motor; 7: speed reducer; 8: base; 9: speed reducer mounting plate; 10: static support; 11: rotary support; 12: rotating main shaft; 13: reinforcing plate; 14: vertical stand; 15: rotating arm; 16: triangular mounting plate; 17: control cabinet; 18: animal fixing platform; 19: upper L plate; 20: step motor push rod; 21: lower L plate; 22: electric rotating platform; 23: swing plate; 24: bearing pedestal, 25: short shaft; 26: animal platform seat; 27: upper mounting plate; 28: square shaft, 29: lower mounting plate; 30: bottom plate; 31: inner ring of rotary support; 32: outer ring of rotary support; 33: push rod motor; 34: rotating motor.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[25] The present invention is further described in combination with the embodiments and accompanying drawings.

[26] As shown in FIG. 1, the technical solution adopted in the embodiment of the present invention includes a supporting system 1, a four-rotating-arm system 2 and a biaxial-rotating animal carrying platform system 3. The transmission supporting system 1 supports the four-rotating-arm system 2 to rotate along a horizontal ground by taking a rotating main shaft 12 as a circle center under the action of power, which satisfies a centrifugal acceleration and a centrifugal acceleration change rate required by an experiment. An upper part of the four-rotating-arm system 2 includes a control cabinet 17.

The biaxial-rotating animal carrying platform system 3 is arranged between vertical stands 14 at an outer end of the four-rotating-arm system 2 and is connected with the vertical stands 14 through bearing pedestals 24. A flight experimental environment is simulated by compounding multiaxial motion trajectories.

[27] The transmission supporting system 1 includes a base 8, a main motor 6, a speed reducer 7, a speed reducer mounting plate 9, a transmission shaft 5, a driving gear 4, a static support 10, a rotary support 11 and the rotating main shaft 12; the main motor 6 and the speed reducer 7 are arranged on the base 8; mounting holes for the static support 10 and the speed reducer mounting plate 9 are formed in the base 8; an output end of the main motor 6 1s connected with the speed reducer 7; one end of the transmission shaft 5 is connected to an output end of the speed reducer 7, and the other end is fixedly connected to the driving gear 4; an upper end of the static support 10 is fixedly connected to a bottom of an inner ring 32 of the rotary support 11; a bottom plate 30 of the rotating main shaft 12 is fixedly connected to a top of an outer ring 31 of the rotary support 11; and a side surface gear of the outer ring 31 of the rotary support 11 is meshed with the driving gear 4.

[28] As shown in FIG. 2 and FIG. 3, the static support 10 in the transmission supporting system 1 is mounted on the base 8, and the transmission supporting system 1 is composed of the static support 10, the rotary support 11 and the rotating main shaft 12 from bottom to top; the rotary support 11 is connected to the upper and lower parts through bolts; the bottom of the inner ring 32 of the rotary support 11 is fixedly connected to the static support 10, and the top of the outer ring 31 of the rotary support 11 is fixedly connected to the bottom plate 30 of the rotating main shaft 12; the side surface gear of the outer ring 31 of the rotary support 11 is meshed with the driving gear 4; a force and a moment are transmitted to the rotating main shaft 12 through the rotary support 11; four rotating arms 15 are mounted on the rotating main shaft 12; the rotating main shaft 12 drives the rotating arms 15 to rotate; every two of the four rotating arms 15 are symmetric, and adjacent rotating arms 15 form an included angle of 90 degrees, so as to ensure the balance and reasonability of the entire animal centrifuge. The four rotating arms 15 are fixed with the control cabinet 17 through a triangular mounting plate 16. The mounting holes for the static support 10 and the speed reducer mounting plate 9 are formed in the base 8; the output end of the main motor 6 is connected to the speed reducer 7; the speed reducer 7 is fixed on the base 8 through the speed reducer mounting plate 9; the input end of the speed reducer 7 is connected to the main motor 6; the output end of the speed reducer 7 is connected with the transmission shaft 5; and the driving gear 4 is mounted on the transmission shaft 5.

[29] The four-rotating-arm system 2 includes the rotating arms 15, the control cabinet 17 and the triangular mounting plate 16; one end of each rotating arm 15 is fixedly connected to the rotating main shaft 12, and the other end is of a semicircular structure provided with two vertical stands 14; the two vertical stands 14 are distributed on the left and right horizontally; the biaxial-rotating animal carrying platform system 3 is mounted between the two vertical stands 14; a lower position between the two vertical stands 14 is fixedly connected with a reinforcing plate 13; the control cabinet 17 is placed at the ends of the rotating arms 15 connected to the rotating main shaft 12; a cabinet door direction of the control cabinet 17 is located between two adjacent rotating arms 15; and the control cabinet 17 is fixed with the rotating arms 15 through the triangular mounting plate 16.

[30] The biaxial-rotating animal carrying platform system 3 includes a step motor push rod 20, an upper L plate 19, a lower L plate 21, a swing plate 23, a short shaft 25, a bearing pedestal 24, an electric rotating platform 22, an animal platform seat 26, a push rod motor 33, a rotating motor 34 and an animal fixing platform 18; the bearing pedestal 24 is fixedly mounted on the vertical stands 14 at the outer end of the rotating arm 15; the bearing pedestal 24 is rotatably connected to the swing plate 23 through the short shaft 25; the electric rotating platform 22 is placed on the swing plate 23; a mounting hole for the animal platform seat 26 is formed in the electric rotating platform 22; a lower end surface and an upper end surface of the animal platform seat 26 are fixedly connected to the electric rotating platform 22 and the animal fixing platform 18 respectively; mounting holes for the electric rotating platform 22 and the upper L plate 19 are formed in the swing plate 23; a mounting hole for the lower L plate is formed in the reinforcing plate 13; a telescopic end and a fixed end of the step motor push rod 20 are fixedly connected to the upper L plate 19 and the lower L plate 21 respectively; and the upper L plate 19 and the lower L plate 21 are fixedly connected to the swing plate 23 and the reinforcing plate 13 respectively.

[31] As shown in FIG. 4, the biaxial-rotating animal carrying platform system 3 includes a step motor push rod 20, an upper L plate 19, a lower L plate 21, a swing plate 23, a short shaft 25, a bearing pedestal 24, an electric rotating platform 22, an animal platform seat 26, a push rod motor 33, a rotating motor 34 and an animal fixing platform 18; the bearing pedestal 24 in the biaxial-rotating animal carrying platform system 3 is connected to the swing plate 23 through the short shaft 25; the swing plate 23 can swing around an axis of the short shaft 25; a mounting hole for the electric rotating platform 22 is formed in the swing plate 23 and is used for fixedly mounting the electric rotating platform 22; the animal platform seat 26 is mounted on the electric rotating platform 22; the animal platform seat 26 adopts a hollowed design, so as to reduce the weight; and the animal platform seat 26 is fixedly connected to the animal fixing platform 18. The electric rotating platform 22 can drive the animal fixing platform 18 to rotate 360° through the rotating motor 34; the animal fixing platform 18 is of a rectangular symmetric structure; a mounting via hole for the animal platform seat 26 is formed in a center circular region of the animal fixing platform 18; the animal fixing platform 18 is provided with uniformly distributed elongated holes in other parts except the center circular region, so as to reduce the weight as much as possible and reduce the moment of inertia; and to conveniently fix an experimental animal by a binding method; and peripheral edges of the animal fixing platform 18 are folded to improve the rigidity of the animal fixing platform 18, so that the animal fixing platform is hard to deform during use and working.

[32] The mounting holes for the electric rotating platform 22 and the upper L plate 19 are respectively formed in the swing plate 23; one end of the upper L plate 19 is fixedly mounted on the swing plate 23, and the other end is connected to the telescopic end of the step motor push rod 20; the mounting hole for the lower L plate 21 is formed in the reinforcing plate 13; one end of the lower L plate 21 is fixedly connected to the reinforcing plate 13 of the rotating arm 15, and the other end is connected to the fixed end of the step motor push rod 20; the step motor push rod 20 can adjust the size parameters of the upper

L plate 19 and the lower L plate 21 to change an extreme angle of swing of the animal fixing platform 18, so as to meet different experimental requirements. When the step motor push rod 20 extends or retracts, the push rod motor 33 will drive the swing plate 23 and the animal fixing platform 18 to swing in a reciprocating manner, so as to simulate a pitching motion in a flight process. A flight environment is simulated by means of a compound motion of the transmission supporting system 1 and the biaxial-rotating animal carrying platform system 3 to complete centrifugation of an animal.

[33] The animal fixing platform 18 is of a rectangular symmetric structure; a mounting via hole for the animal platform seat 26 is formed in a center circular region of the animal fixing platform 18; the animal fixing platform 18 is provided with uniformly distributed elongated holes in other parts except the center circular region; and peripheral edges of the animal fixing platform 18 are folded.

[34] As shown in FIG. 5, the rotating main shaft 12 in the present invention includes a square shaft 28, an upper mounting plate 27, a lower mounting plate 29 and a bottom plate 30; the square shaft 28 is fixedly provided with the upper mounting plate 27, the lower mounting plate 29 and the bottom plate 30 from top to bottom; the upper mounting plate 27 1s fixedly connected to a top surface of an inner end of the rotating arm 15; a side surface of an extending end of the lower mounting plate 29 is provided with a mounting hole of the rotating arm 15; two side surfaces of the rotating arm 15 are fixedly connected to the lower mounting plate 29; and the bottom plate 30 is fixedly connected to the outer ring 31 of the rotary support 11. When the outer ring 31 of the rotary support 11 rotates under the action of power, the rotating main shaft 12 will also rotate at the same time.

[35] The rotating arm 15 is of a C-shaped structure, with a downward opening; the outer end of the rotating arm 15 is provided with the two semicircular vertical stands 14; and a lower position between the two vertical stands 14 is fixedly connected with the reinforcing plate 13 to improve the rigidity of the rotating arm 15. A top surface of an inner end of the rotating arm 15 is provided with a mounting via hole for the upper mounting plate 27 of the rotating main shaft 12; two side surfaces of the inner end of the rotating arm 15 are provided with mounting via holes for the lower mounting plate 29 of the rotating main shaft 12; and elliptical holes are formed in the two side surfaces and the top surface of the rotating arm 15 according to a certain ratio. Therefore, the weight of the rotating arm is reduced, and the wind resistance is also reduced.

The rotating main shaft 12 will also drive the four-rotating-arm system 2 to rotate together when it rotates.

Claims

Conclusies L Meerderevrijheidsgraaddiercentrifuge met vier roterende armen, met het kenmerk dat deze het volgende omvat een steunsysteem (1), een vierroterendearmsysteem (2) en een biaxiaalroterend- dierdraagplatformsysteem (3) dat op een armeinde is gemonteerd, waarbij het steunsysteem (1) een basis (8), een hoofdmotor (6), een transmissie-as (5), een aandrijftandwiel (4), een snelheidsverminderer (7), een statische steun (10), een roteerbare steun (11) en een roterende hoofdas (12) omvat; waarbij de hoofdmotor (6), de snelheidsverminderer (7) en de statische steun (10) op de basis (8) bevestigt zijn; de snelheidsverminderer (7) met de hoofdmotor (6) verbonden is; de snelheidsverminderer (7) met de transmissie-as (5) verbonden is; de transmissie-as (5) met het aandrijftandwiel (4) verbonden is; het aandrijftandwiel (4) met een tandwiel van de roteerbare steun (11) in ineengrijpende verbinding is; een binnenste ring van (32) van de roteerbare steun (11) met de statische steun (10) in verbinding is; een buitenste ring (31) met een bodem van de roterende hoofdas (12) verbonden is; de roterende hoofdas (12) met een as van het vierroterendearmsysteem (2) verbonden is; het biaxiaalroterend-dierdraagplatformsysteem (3) een dierbevestigingsplatform (18), een L-plaat (19), een L-plaat (21), een elektrisch roterendplatform (22), een schommelplaat (23), een lagervoetstuk (24), een dierplatformzitting (26), een roterende motor (34) en een duwstangmotor (33) omvat; waarbij het dierbevestigingsplatform (18) op de dierplatformzitting (26) bevestigd is; een onderste-eindoppervlak van de dierplatformzitting (26) met het elektrisch roterendplatform (22) verbonden is, en het elektrisch roterendplatform (22) op de schommelplaat (23) geplaatst is; twee einde van de schommelplaat (23) door een korte as (25) verbonden zijn met het lagervoetstuk (24); de schommelplaat (23) middels de bovenste L-plaat (19) is verbonden met een duwstang (20) van een stappenmotor (33), en een onderste eind van de duwstang met de onderste L-plaat (21) is verbonden; een bovenste eind van het vierroterendearmsysteem (2) is voorzien van een concave verticale staander (14) en een versterkingsplaat (13) met een concave bodem doorgaande gaten in twee zijdes van de verticale staander (14) met de twee lagervoetstukken (24) van het biaxiaalroterend-dierdraagplatformsysteem (3) verbonden IS; de versterkingsplaat (13) met de onderste L-plaat van het biaxiaalroterend- dierdraagplatformsysteem (3) verbonden is; het vierroterendearmsysteem (2) het biaxiaalroterend-dierdraagplatformsysteem (3) aandrijft om te roteren langs een horizontale grond door de roterende hoofdas (12) als een cirkelmidden onder de werking van de hoofdmotor (6) te nemen; het dierbevestigingsplatform (18) onder de werking van de roterende motor (34) roteert; door de duwstangmotor (33) een stappenmotorduwstang (20) wordt uitgestrekt en ingetrokken om de schommelplaat (23) en het dierbevestigingsplatform (18) aan te drijven om hellend te schommelen; en een experimentele vliegomgeving wordt gesimuleerd door het samenstellen en het superponeren van de drie soorten van bewegingen.Claims L Multiple degree of freedom animal centrifuge with four rotating arms, characterized in that it comprises a support system (1), a four rotating arm system (2) and a biaxial rotating animal carrying platform system (3) mounted on an arm end, the support system (1) having a base (8), a main motor (6), a transmission shaft (5), a drive gear (4), a speed reducer (7), a static support (10), a rotatable support (11) and a rotating main shaft (12) includes; wherein the main motor (6), the speed reducer (7) and the static support (10) are mounted on the base (8); the speed reducer (7) is connected to the main motor (6); the speed reducer (7) is connected to the transmission shaft (5); the transmission shaft (5) is connected to the drive gear (4); the drive gear (4) is in meshing connection with a gear of the rotatable support (11); an inner ring of (32) of the rotatable support (11) is in communication with the static support (10); an outer ring (31) is connected to a bottom of the rotating main shaft (12); the rotating main shaft (12) is connected to a shaft of the four-rotating arm system (2); the biaxial rotating animal carrying platform system (3) an animal mounting platform (18), an L-plate (19), an L-plate (21), an electric rotating platform (22), a sway plate (23), a bearing pedestal (24), an animal platform seat (26), a rotary motor (34) and a push rod motor (33); wherein the animal mounting platform (18) is mounted on the animal platform seat (26); a lower end surface of the animal platform seat (26) is connected to the electrically rotating platform (22), and the electrically rotating platform (22) is placed on the swing plate (23); two ends of the swash plate (23) are connected to the bearing pedestal (24) by a short shaft (25); the swing plate (23) is connected to a push rod (20) of a stepping motor (33) through the upper L plate (19), and a lower end of the push rod is connected to the lower L plate (21); an upper end of the four rotating arm system (2) is provided with a concave vertical upright (14) and a reinforcement plate (13) with a concave bottom through holes in two sides of the vertical upright (14) with the two bearing bases (24) of the biaxially rotating animal carrying platform system (3) connected IS; the reinforcement plate (13) is connected to the lower L-plate of the biaxially rotating animal carrying platform system (3); the four-rotating arm system (2) drives the biaxially rotating animal carrying platform system (3) to rotate along a horizontal ground by taking the rotating main shaft (12) as a circle center under the action of the main motor (6); the animal mounting platform (18) rotates under the action of the rotating motor (34); a stepper motor pushrod (20) is extended and retracted by the pushrod motor (33) to drive the swing plate (23) and the animal mounting platform (18) to swing inclined; and an experimental flying environment is simulated by composing and superimposing the three types of motion.

2. Meerderevrijheidsgraaddiercentrifuge met vier roterende armen volgens conclusie 1, met het kenmerk dat: een besturingskast (17) bij middendelen van de vier roterende armen bevestigd IS; een kastdeurrichting zich bevindt tussen twee aangrenzende roterende armen; de besturingskast (17) met de vier roterende armen door een driehoekige monteerplaat (16) bevestigd is; een besturingssysteem in de besturingskast (17) is geplaatst; en het besturingssysteem elektrisch is verbonden met de hoofdmotor (6), de duwstangmotoren (33) op de vier armen, en de roterende motor (34).A multi-degree-of-freedom animal centrifuge with four rotating arms according to claim 1, characterized in that : a control box (17) is mounted at center portions of the four rotating arms; a cabinet door direction is located between two adjacent rotating arms; the control box (17) with the four rotating arms is fixed by a triangular mounting plate (16); a control system is placed in the control box (17); and the control system is electrically connected to the main motor (6), the pushrod motors (33) on the four arms, and the rotating motor (34).

3. Meerderevrijheidsgraaddiercentrifuge met vier roterende armen volgens conclusie 1, met het kenmerk dat de roterende hoofdas (12) een vierkante as (28), een bovenste montageplaat (27), een onderste montageplaat (29) en een onderste plaat (30) omvat; waarbij de vierkante as (28) vast met de bovenste montageplaat (27), de onderste montageplaat (29) en de onderste plaat (30) van boven tot onder verschaft is; de bovenste montageplaat (27) vast verbonden is met een bovenste oppervlak van een binnenste eind van elke roterende arm (15); een zijoppervlak van een uitstrekkend eind van de onderste montageplaat (29) met een montagegat van de roterende arm (15) verschaft is; twee zijoppervlakken van de roterende arm (15) vast met de onderste montageplaat (29) zijn verbonden; en de onderste plaat (30) vast met de buitenste ring (31) van de roteerbare steun (11) is verbonden.A multiple degree of freedom animal centrifuge with four rotating arms according to claim 1, characterized in that the main rotating shaft (12) comprises a square shaft (28), an upper mounting plate (27), a lower mounting plate (29) and a lower plate (30); wherein the square shaft (28) is provided fixed with the upper mounting plate (27), the lower mounting plate (29) and the lower plate (30) from top to bottom; the upper mounting plate (27) is fixedly connected to an upper surface of an inner end of each rotary arm (15); a side surface of an extending end of the lower mounting plate (29) with a mounting hole of the rotating arm (15) is provided; two side surfaces of the rotating arm (15) are fixedly connected to the lower mounting plate (29); and the lower plate (30) is fixedly connected to the outer ring (31) of the rotatable support (11).

4. Meerderevrijheidsgraaddiercentrifuge met vier roterende armen volgens conclusie 1, met het kenmerk dat: het dierbevestigingsplatform (18) van een rechthoekige symmetrische structuur IS; een montagegat voor de dierplatformzitting (26) in een centraal cirkelvormiggebied van het dierbevestigingsplatform (18) gevormd is; het dierbevestigingsplatform (18) met uniform gedistribueerde uitgerekte gaten in andere delen behalve het centrale cirkelvormiggebied verschaft is; en perifere randen van het dierbevestigingsplatform (18) gevouwen zijn.A multiple degree of freedom animal centrifuge with four rotating arms according to claim 1, characterized in that : said animal mounting platform (18) is of a rectangular symmetrical structure; a mounting hole for the animal platform seat (26) is formed in a central circular region of the animal mounting platform (18); the animal mounting platform (18) is provided with uniformly distributed elongated holes in other parts except the central circular area; and peripheral edges of the animal mounting platform (18) are folded.

5. Meerderevrijheidsgraaddiercentrifuge met de vier roterende armen volgens conclusie 1, met het kenmerk dat de roterende arm (15) een C-vormige sectie heeft met een naar beneden gerichte opening.The multi-degree-of-freedom animal centrifuge with the four rotating arms according to claim 1, characterized in that the rotating arm (15) has a C-shaped section with a downward opening.

6. Meerderevrijheidsgraaddiercentrifuge met vier roterende armen volgens conclusie 1 of 5, met het kenmerk dat elke van het bovenste oppervlak en de twee zijoppervlakken van de roterende arm (15) verschaft is met een ovaal gat.A multiple degree of freedom animal centrifuge with four rotating arms according to claim 1 or 5, characterized in that each of the top surface and the two side surfaces of the rotating arm (15) is provided with an oval hole.