Rotary hoisting multi-degree-of-freedom dynamic platform

Abstract

The utility model discloses a kind of rotary hoisting multi-degree-of-freedom dynamic platform, and its hoisting rotating mechanism includes base, pedestal, slewing bearing, slewing motor, support column, lifting electric cylinder, large arm, small arm;Base carries pedestal, slewing bearing is set on pedestal, slewing motor is connected with slewing bearing transmission, support column is fixedly connected in pedestal, lifting electric cylinder is installed in one side of support column, large arm one end lower portion connects lifting electric cylinder, and the other end of large arm connects small arm;Multi-degree-of-freedom movement mechanism includes multi-degree-of-freedom upper piece, multi-degree-of-freedom electric cylinder, multi-degree-of-freedom lower piece;Multi-degree-of-freedom upper piece connects small arm, and multi-degree-of-freedom electric cylinder two ends are respectively articulated multi-degree-of-freedom upper piece and multi-degree-of-freedom lower piece;Cabin includes seat chassis, and seat chassis is fixedly connected below multi-degree-of-freedom lower piece.The utility model solves the problem that existing dynamic platform stability is poor, motion trajectory control precision is insufficient, cannot satisfy complex scene immersive experience.

Description

Technical Field

[0001] This utility model belongs to the field of simulation and interactive equipment technology, specifically relating to a rotary crane type multi-degree-of-freedom dynamic platform. Background Technology

[0002] In the field of immersive experiences such as virtual reality (VR) and motion cinema, multi-degree-of-freedom motion platforms are one of the core devices. They create an immersive experience for users by simulating various motion postures. As experience demands continue to upgrade, higher requirements are being placed on the motion platform's degrees of freedom, lifting and rotation functions, and safety.

[0003] Current multi-degree-of-freedom motion platforms have the following shortcomings: First, the integration of the motion mechanism and the lifting and rotating mechanism is low, making it difficult to achieve large-stroke, multi-angle linkage simulation in complex scenarios. For example, when simulating scenarios such as falling from a height or rapid rotation, the continuity and amplitude of the motion are limited, making it impossible to accurately reproduce the real experience. Second, the structural stability is poor. Under lifting and rotating conditions, uneven force can easily generate a large overturning moment, which not only increases energy consumption but also affects the service life and operational safety of the equipment. Utility Model Content

[0004] To address this issue, this invention provides a rotary lifting multi-degree-of-freedom motion platform, which solves the problems of poor operational safety, high energy consumption, short lifespan, and inability to meet the immersive experience requirements of existing motion platforms in complex scenarios.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary lifting multi-degree-of-freedom motion platform, including a lifting and rotating mechanism, a multi-degree-of-freedom motion mechanism, and a cabin;

[0006] The lifting and rotating mechanism includes a base, a platform, a slewing bearing, a slewing motor, a support column, a lifting cylinder, a boom, and a forearm. The base supports the platform, the slewing bearing is mounted on the platform, the slewing motor is connected to the slewing bearing, the support column is fixed to the platform, the lifting cylinder is mounted on one side of the support column, one end of the boom is connected to the lifting cylinder at its lower part, and the other end of the boom is connected to the forearm.

[0007] The multi-degree-of-freedom motion mechanism includes a multi-degree-of-freedom upper plate, a multi-degree-of-freedom electric cylinder, and a multi-degree-of-freedom lower plate; the multi-degree-of-freedom upper plate is connected to the forearm, and the multi-degree-of-freedom electric cylinder is hinged to the multi-degree-of-freedom upper plate and the multi-degree-of-freedom lower plate at both ends respectively;

[0008] The cockpit includes a seat base frame, which is fixedly connected to the underside of the multi-degree-of-freedom lower plate.

[0009] As a preferred embodiment of the rotary lifting multi-degree-of-freedom dynamic platform, the lifting and rotating mechanism further includes a support rod, which is inclined and connected at one end to the base and at the other end to the base to alleviate the stress on the base.

[0010] As a preferred embodiment of the rotary lifting multi-degree-of-freedom dynamic platform, the lifting and rotating mechanism further includes a counterweight, which is installed at the end of the boom away from the forearm.

[0011] As a preferred embodiment of the rotary lifting multi-degree-of-freedom motion platform, the lifting and rotating mechanism further includes a horizontal tie rod, the two ends of which are respectively hinged to the forearm and the multi-degree-of-freedom upper plate to coordinate the angle of the multi-degree-of-freedom motion mechanism and maintain a horizontal state.

[0012] As a preferred embodiment of the rotary lifting multi-degree-of-freedom dynamic platform, the multi-degree-of-freedom motion mechanism further includes a multi-degree-of-freedom auxiliary mechanism. The multi-degree-of-freedom auxiliary mechanism is a linkage structure, and the two ends of the multi-degree-of-freedom upper plate and the multi-degree-of-freedom lower plate are respectively hinged to limit the running trajectory of the multi-degree-of-freedom motion mechanism.

[0013] As a preferred embodiment of the rotary crane-type multi-degree-of-freedom dynamic platform, the cockpit also includes a cockpit roof plate, which covers the seat base frame.

[0014] As a preferred embodiment of the rotary crane-type multi-degree-of-freedom dynamic platform, the cockpit also includes a safety bar, which is hinged to the seat base frame.

[0015] As a preferred embodiment of the rotary lifting multi-degree-of-freedom dynamic platform, the base is a rectangular frame structure.

[0016] As a preferred embodiment of the rotary lifting multi-degree-of-freedom dynamic platform, at least three sets of multi-degree-of-freedom electric cylinders are provided, which are evenly distributed along the circumference of the multi-degree-of-freedom upper plate.

[0017] As a preferred embodiment of a rotary lifting multi-degree-of-freedom dynamic platform, the slewing bearing is a double-row unequal-diameter ball slewing bearing.

[0018] The beneficial effects of this utility model are as follows:

[0019] First, by modularly integrating the lifting and rotating mechanism with the multi-degree-of-freedom motion mechanism, the base supports the platform and connects to the slewing bearing. The support column and the lifting electric cylinder drive the boom and forearm to move, achieving a compound motion of 180° rotation and 0.6-meter lifting stroke. Compared with the traditional slide rail structure, this reduces mechanical parts by 25% and lowers maintenance costs.

[0020] Secondly, the multi-degree-of-freedom electric cylinder is hinged to the upper and lower plate structures. The design with at least 3 sets of circumferentially distributed cylinders can achieve multi-dimensional linkage with a 38° motion angle and a 0.4-meter stroke. Together with the horizontal tie rod, it maintains the horizontal posture of the platform and accurately simulates the depth displacement and weightlessness.

[0021] Third, the fixed structure of the base and the support column, combined with the diagonal support of the strut, effectively alleviates the local stress concentration under lifting conditions; the counterweight is installed at the end of the boom, so that the overturning moment of the whole machine is controlled within 5kN·m, reducing the structural redundancy by 25%.

[0022] Fourth, the seat base frame is fixed to a multi-degree-of-freedom lower plate, which, together with the cabin roof protection structure, and the safety pressure bar hinge design forms a mechanical restraint system to meet the safety protection needs in an immersive experience.

[0023] Fifth, the transmission connection between the rotary motor and the slewing bearing enables the rotation function. Combined with the lifting action of the lifting cylinder, it is compatible with multimodal interactive technologies such as VR / AR, and can build highly realistic dynamic environments in scenarios such as special cinemas and simulation training. Attached Figure Description

[0024] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0025] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0026] Figure 1 A first-view three-dimensional structural diagram of the rotary lifting multi-degree-of-freedom dynamic platform provided in an embodiment of this utility model;

[0027] Figure 2 A second-view three-dimensional structural diagram of the rotary lifting multi-degree-of-freedom dynamic platform provided in an embodiment of this utility model;

[0028] Figure 3 This is a side view schematic diagram of a rotary lifting multi-degree-of-freedom dynamic platform provided in an embodiment of the present utility model;

[0029] Figure 4This is a front view schematic diagram of a rotary lifting multi-degree-of-freedom dynamic platform provided in an embodiment of the present utility model;

[0030] Figure 5 This is a rear view schematic diagram of a rotary lifting multi-degree-of-freedom dynamic platform provided in an embodiment of the present utility model;

[0031] Figure 6 This is a top view schematic diagram of a rotary lifting multi-degree-of-freedom dynamic platform provided in an embodiment of the present utility model.

[0032] In the diagram, 1. Base; 2. Platform; 3. Support rod; 4. Slewing bearing; 5. Slewing motor; 6. Support column; 7. Lifting electric cylinder; 8. Boom; 9. Counterweight; 10. Forearm; 11. Horizontal tie rod; 12. Multi-degree-of-freedom upper plate; 13. Multi-degree-of-freedom electric cylinder; 14. Multi-degree-of-freedom auxiliary mechanism; 15. Multi-degree-of-freedom lower plate; 16. Cockpit roof; 17. Safety bar; 18. Seat base frame. Detailed Implementation

[0033] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] See Figure 1 , Figure 2 and Figure 3 This utility model provides a rotary lifting multi-degree-of-freedom motion platform, including a lifting rotation mechanism, a multi-degree-of-freedom motion mechanism, and a cabin;

[0035] The lifting and rotating mechanism includes a base 1, a platform 2, a slewing bearing 4, a slewing motor 5, a support column 6, a lifting cylinder 7, a boom 8, and a forearm 10. The base 1 supports the platform 2, the slewing bearing 4 is mounted on the platform 2, the slewing motor 5 is connected to the slewing bearing 4, the support column 6 is fixed to the platform 2, the lifting cylinder 7 is mounted on one side of the support column 6, one end of the boom 8 is connected to the lifting cylinder 7 at its lower part, and the other end of the boom 8 is connected to the forearm 10.

[0036] The base 1 serves as the basic support structure, forming a stable installation platform through the supporting base 2. The slewing bearing 4 above the base 2 rotates 360° under the drive of the slewing motor 5 (the actual design limit is 180°). The motor torque is transmitted to the slewing bearing 4 through gear meshing or belt drive, enabling the entire lifting structure to rotate. The support column 6 is vertically fixed to the base 2, providing an installation fulcrum for the lifting cylinder 7. The lifting cylinder 7 drives the boom 8 to rotate around the hinge point through the extension and retraction of the piston rod, forming a lifting action based on the lever principle. The other end of the boom 8 is connected to the forearm 10 to extend the lever arm, achieving precise control of the 0.6-meter lifting stroke.

[0037] See Figure 4 and Figure 5 In this embodiment, the lifting and rotating mechanism further includes a support rod 3, which is inclined and has one end connected to the base 2 and the other end connected to the base 2 to relieve the stress on the base 2.

[0038] Specifically, the strut 3 adopts an oblique triangular support structure, with one end fixed to the edge of the base 2 and the other end connected to the middle of the support column 6. By sharing the vertical load and bending moment of the support column 6 under lifting conditions, part of the stress is converted into the axial pressure of the strut 3. The principle of triangular stability is used to reduce the local deformation of the base 2, improve the structure's anti-overturning ability, and enable the base 2 to maintain mechanical balance when bearing the radial force of the slewing bearing 4 and the thrust of the lifting cylinder 7.

[0039] See Figure 6 In this embodiment, the lifting and rotating mechanism further includes a counterweight 9, which is installed at the end of the boom 8 away from the forearm 10.

[0040] Specifically, the counterweight 9 is fixed to the end of the boom 8 with bolts. It uses the lever balance principle to counteract the torque during lifting. When the lifting cylinder 7 pushes the boom 8 up, the counterweight 9 generates a reverse torque, keeping the center of gravity of the whole machine within the support range of the base 1 and controlling the overturning torque to below 5kN·m. At the same time, the counterweight 9 can reduce the driving load of the lifting cylinder 7 and reduce energy consumption by about 25%. It is similar to the balance principle of weights on both sides of a balance scale, and optimizes mechanical performance through mass distribution.

[0041] In this embodiment, the lifting and rotating mechanism further includes a horizontal tie rod 11, with the forearm 10 and the multi-degree-of-freedom upper plate 12 respectively hinged at both ends of the horizontal tie rod 11 to coordinate the angle of the multi-degree-of-freedom motion mechanism and maintain a horizontal state.

[0042] Specifically, the horizontal tie rod 11 adopts a linkage structure with hinged ends. When the lifting and rotating mechanism drives the forearm 10 to rotate or rise and fall, the horizontal tie rod 11 constrains the tilt angle of the multi-degree-of-freedom upper plate 12 through pushing and pulling actions. If the forearm 10 pitches, the horizontal tie rod 11 will force the multi-degree-of-freedom upper plate 12 to remain horizontal. By utilizing the parallel constraint principle of the four-bar linkage, it ensures that the cabin always maintains a horizontal attitude in three-dimensional motion, avoids dizziness caused by platform tilt, and improves the comfort of the experience.

[0043] In this embodiment, the multi-degree-of-freedom motion mechanism further includes a multi-degree-of-freedom auxiliary mechanism 14. The multi-degree-of-freedom auxiliary mechanism 14 is a linkage structure. The two ends of the multi-degree-of-freedom auxiliary mechanism 14 are respectively hinged to the multi-degree-of-freedom upper plate 12 and the multi-degree-of-freedom lower plate 15 to limit the running trajectory of the multi-degree-of-freedom motion mechanism.

[0044] Specifically, the multi-degree-of-freedom auxiliary mechanism 14 typically consists of 2-4 sets of symmetrically arranged links, forming a parallel kinematic chain with the multi-degree-of-freedom electric cylinder 13. The relative motion trajectories of the multi-degree-of-freedom upper piece 12 and the multi-degree-of-freedom lower piece 15 are constrained through the hinge points. When the electric cylinder drives the lower piece to move, the auxiliary links restrict its movement to a preset spatial range to avoid over-limit movement that could cause structural damage. Thus, the multi-degree-of-freedom motion is restricted to a safe and controllable range through geometric constraints, while improving motion accuracy.

[0045] In one possible embodiment, the cockpit further includes a cockpit roof panel 16 that covers the seat base 18.

[0046] Specifically, the cockpit roof panel 16 is bolted to the columns around the seat base frame 18 to form a top protective structure. Its mechanical principle is a load-bearing design of the shell, which can not only block possible falling objects from above, but also support the weight of lighting, wind simulation, rain simulation and other devices through the internal frame. At the same time, the roof panel and the seat base frame 18 form a closed space, and the airflow direction of the wind simulation device is guided by aerodynamic design. Together with the rain simulation device, it realizes the scene-based environmental simulation and enhances the sensory realism of the immersive experience.

[0047] In one possible embodiment, the cockpit further includes a safety bar 17 hinged to the seat base 18.

[0048] Specifically, the safety bar 17 is hinged to both sides of the seat base frame 18 via a pivot and uses an eccentric cam locking mechanism. When the bar flips down, the cam engages with the slot of the seat base frame 18, generating a self-locking force to fix the passenger in the seat. The principle is similar to the locking mechanism of a car seat belt. It uses mechanical friction resistance to prevent the bar from rebounding during violent movements. Together with the self-locking seat belt, it forms double protection to ensure that the passenger will not leave the seat during a 38° tilt or a 0.4-meter travel weightlessness simulation, thus meeting safety regulations.

[0049] In one possible embodiment, the base 1 is a rectangular frame structure. The base 1 is welded from rectangular steel pipes. Utilizing the torsional stiffness principle of the frame structure, the rectangular layout of 3.7 meters long and 3.7 meters wide maximizes the contact area between the support surface and the ground. The diagonal support beams enhance the structural bending resistance, and the weight of the entire machine is evenly distributed on the ground. This structural design is similar to the rigid foundation of a building, which can withstand the vertical load of the lifting and rotating mechanism and resist the lateral torque generated when the slewing bearing 4 rotates, ensuring that the equipment does not overturn during a 180° rotation.

[0050] In one possible embodiment, at least three sets of the multi-degree-of-freedom electric cylinders 13 are provided and are evenly distributed around the circumference of the multi-degree-of-freedom upper plate 12.

[0051] Specifically, the three sets of electric cylinders are distributed in a 120° circumferential direction. Utilizing the kinematic principle of parallel mechanisms, when each set of electric cylinders extends and retracts independently, vector synthesis enables the multi-degree-of-freedom lower plate 15 to achieve six degrees of freedom of movement, including pitch, roll, and translation (the actual design is limited to a 38° angle and a 0.4-meter stroke). By eliminating motion coupling through multi-cylinder coordinated drive, the smoothness and accuracy of the cockpit's movement in three-dimensional space are ensured. For example, when simulating vehicle bumps, each electric cylinder can independently adjust its stroke to reproduce the vibration frequency of different road surfaces.

[0052] In one possible embodiment, the slewing bearing 4 is a double-row unequal diameter ball slewing bearing 4.

[0053] Specifically, the double-row unequal-diameter ball slewing bearing 4 has two rows of steel balls with different diameters. The upper row of steel balls bears radial and axial forces, while the lower row mainly bears overturning moments. The asymmetrical design enhances the load-bearing capacity (≥500kN). Its working principle is similar to that of a bearing assembly structure. The upper row of steel balls forms point contact with the raceways of the inner and outer rings, allowing rotational movement. The lower row of steel balls enhances the anti-overturning performance through a larger diameter and contact angle. This allows the slewing bearing 4 to bear the weight of the equipment and resist the eccentric moment generated during lifting when driving the boom 8 to rotate, ensuring the smoothness of the rotational movement.

[0054] The working principle of this utility model is as follows:

[0055] Rotation is achieved as follows: After the rotary motor 5 is powered on, it outputs torque, which is transmitted to the inner ring of the slewing bearing 4 via gear or belt drive, causing the base 2 and upper structure, which are fixed to the inner ring, to rotate around the vertical axis. An encoder can monitor the rotation angle of the slewing bearing 4 in real time. When the preset value of 180° is reached, the control system sends a signal to decelerate and brake the motor, achieving precise angle positioning. The counterweight 9 is installed at the end of the boom 8. With the rotation, it generates centrifugal force, which balances the torque with the radial force borne by the slewing bearing 4, ensuring the stability of the center of gravity within the support range of the base 1.

[0056] The lifting action is achieved as follows: When the piston rod of the lifting cylinder 7 extends, it pushes the boom 8 to rotate upward around its hinge point with the support column 6, forming a lever lifting action; when the piston rod retracts, the boom 8 falls back under its own weight and the counterweight 9. The electric cylinder has a built-in displacement sensor that provides real-time feedback on the extension of the piston rod. When the upper limit of the lifting stroke of 0.6 meters is reached, the limit switch is triggered to stop the action. The strut 3 obliquely connects the base 2 and the support column 6, decomposing the vertical load and bending moment generated when the boom 8 lifts into the axial pressure of the strut 3 and the horizontal support force of the base 2, and alleviating local stress concentration through the triangular stabilizing structure.

[0057] Multi-dimensional motion generation: At least three sets of multi-degree-of-freedom electric cylinders 13 are evenly distributed circumferentially along the upper multi-degree-of-freedom plate 12. When each set of electric cylinders extends or retracts independently, it pushes the lower multi-degree-of-freedom plate 15 to translate or rotate in space through the hinge point. The control system calculates the stroke of each electric cylinder according to the motion command. For example, when simulating a forward tilting motion, the front row of electric cylinders extends and the rear row of electric cylinders shortens, so that the lower plate forms a 38° tilt angle; when simulating horizontal displacement, multiple sets of electric cylinders extend and retract synchronously to achieve a stroke movement of 0.4 meters. The multi-degree-of-freedom auxiliary mechanism 14 (linkage structure) is hinged to the upper and lower plates at both ends. Geometric constraints prevent the lower plate from exceeding its limits. If the design angle or stroke is exceeded, the linkage will limit its further movement. The horizontal tie rod 11 is hinged at both ends to the forearm 10 and the multi-degree-of-freedom upper plate 12. When the lifting and rotating mechanism drives the forearm 10 to rise, fall or rotate, the horizontal tie rod 11 forces the multi-degree-of-freedom upper plate 12 to remain horizontal through pushing and pulling actions. If the forearm 10 pitches, the tie rod will force the upper plate to adjust in the opposite direction. By utilizing the parallel constraint principle of the four-bar linkage, the cockpit is ensured to always be in a horizontal state during three-dimensional motion.

[0058] The cockpit system works as follows: The safety bar 17 is hinged to the seat base frame 18 via an eccentric cam locking mechanism. After flipping and pressing down, the cam engages with the slot to generate a self-locking force, which, together with the self-locking seat belt, forms double protection to prevent passengers from being ejected from the seat during violent movements. The cockpit roof 16 supports the weight of the equipment above through its frame structure and also blocks falling objects. Its internal air duct design, combined with simulated wind and rain devices, simulates environmental scenarios. The seat base frame 18 is fixedly connected to the lower part of the multi-degree-of-freedom lower plate 15 and moves synchronously with it. When the lower part of the multi-degree-of-freedom lower plate 15 tilts or shifts due to the electric cylinder drive, the seat base frame 18 transmits the motion through a rigid connection, allowing passengers to experience a dynamic experience matching the film scene. For example, when simulating a high-altitude fall, the lower plate moves rapidly downward in conjunction with the change in the tilt angle of the electric cylinder, creating a sense of weightlessness.

[0059] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A rotary lifting multi-degree-of-freedom dynamic platform, characterized in that, Includes lifting and rotating mechanisms, multi-degree-of-freedom motion mechanisms, and a cockpit; The lifting and rotating mechanism includes a base (1), a platform (2), a slewing bearing (4), a slewing motor (5), a support column (6), a lifting cylinder (7), a boom (8), and a forearm (10). The base (1) supports the platform (2), the slewing bearing (4) is installed on the platform (2), the slewing motor (5) is connected to the slewing bearing (4) in a transmission connection, the support column (6) is fixed to the platform (2), the lifting cylinder (7) is installed on one side of the support column (6), one end of the boom (8) is connected to the lifting cylinder (7), and the other end of the boom (8) is connected to the forearm (10). The multi-degree-of-freedom motion mechanism includes a multi-degree-of-freedom upper plate (12), a multi-degree-of-freedom electric cylinder (13), and a multi-degree-of-freedom lower plate (15); the multi-degree-of-freedom upper plate (12) is connected to the forearm (10), and the multi-degree-of-freedom electric cylinder (13) is hinged at both ends to the multi-degree-of-freedom upper plate (12) and the multi-degree-of-freedom lower plate (15); The cockpit includes a seat base (18) which is fixedly connected to the underside of the multi-degree-of-freedom lower plate (15).

2. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The lifting and rotating mechanism also includes a support rod (3), which is inclined and has one end connected to the base (2) and the other end connected to the base (2) to relieve the stress on the base (2).

3. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The lifting and rotating mechanism also includes a counterweight (9), which is installed at the end of the boom (8) away from the forearm (10).

4. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The lifting and rotating mechanism also includes a horizontal tie rod (11), the two ends of which are hinged to the forearm (10) and the multi-degree-of-freedom upper plate (12) respectively, so as to coordinate the angle of the multi-degree-of-freedom motion mechanism and maintain a horizontal state.

5. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The multi-degree-of-freedom motion mechanism also includes a multi-degree-of-freedom auxiliary mechanism (14), which is a linkage structure. The multi-degree-of-freedom auxiliary mechanism (14) is hinged at both ends to the multi-degree-of-freedom upper plate (12) and the multi-degree-of-freedom lower plate (15) to limit the running trajectory of the multi-degree-of-freedom motion mechanism.

6. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The cockpit also includes a cockpit roof panel (16) that covers the seat base frame (18).

7. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The cockpit also includes a safety bar (17) hinged to the seat base frame (18).

8. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The base (1) is a rectangular frame structure.

9. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, At least three sets of the multi-degree-of-freedom electric cylinders (13) are provided and are evenly distributed along the circumference of the multi-degree-of-freedom upper plate (12).

10. The rotary lifting multi-degree-of-freedom dynamic platform according to claim 1, characterized in that, The slewing bearing (4) is a double-row slewing bearing with different diameters.

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