MR simulated flight training platform

Abstract

The utility model discloses an MR simulation flight training platform in the field of flight simulators, which comprises a degree-of-freedom platform and an overturning ring, a fixed ring is fixed on the degree-of-freedom platform, a roller is arranged on the inner wall of the fixed ring, the overturning ring is positioned in the fixed ring, and the outer wall of the overturning ring is in sliding connection with the roller; the device further comprises a driving structure, the driving structure is arranged on the freedom degree platform, the driving structure is used for driving the overturning ring to rotate in the fixing ring, and the driving structure is connected with the overturning ring through a toothed chain. When the driving structure is started, tooth chain transmission of the driving structure is used for being matched with rolling rotation of the overturning ring on the inner side of the fixing ring, and the rotation angle of the overturning ring is controlled more accurately; the motion of the overturning ring is matched with the basic motion of the degree-of-freedom platform, so that the composite simulation of the multi-dimensional motion of the aircraft can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to flight simulator technical field, concretely is a MR simulation flight training platform. BACKGROUND

[0002] The most commonly used flight simulator motion platform at present is six degrees of freedom Stewart platform, and the typical structure comprises two platforms (a load platform and a base) and six moving pairs connected by hinges. By controlling the moving pairs, the motion of the overall platform is controlled to achieve tilting, shaking and other actions. Such as patent publication number CN112483786A, CN107816507A, CN109986540A, etc. are all Stewart platforms, and it is difficult to realize rolling and other actions on the Stewart platform.

[0003] The patent with application number CN202011410544.7 can simulate the normal state of flight and the flight training state under special conditions such as aircraft rollover and short weight through the cooperation of parallel structure and two annular blocks. However, due to the large weight of the device itself, the motor driving power demand is high, and the belt drive method used is difficult to accurately drive the rollover ring to the required position, which affects the accuracy and flexibility of flight training simulation to some extent. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a MR simulation flight training platform, which utilizes the gear chain transmission of the driving structure to cooperate with the rolling rotation of the rollover ring inside the fixed ring, and more accurately controls the rotation angle of the rollover ring.

[0005] The utility model mainly realizes the purpose through the following technical scheme:

[0006] A MR simulation flight training platform, comprising a degree of freedom platform and a rollover ring, wherein the degree of freedom platform is fixed with a fixed ring, the inner wall of the fixed ring is provided with a roller, the rollover ring is located inside the fixed ring, and the outer wall of the rollover ring is in sliding connection with the roller.

[0007] Further comprising a driving structure, which is arranged on the degree of freedom platform and is used to drive the rollover ring to rotate inside the fixed ring, and the driving structure and the rollover ring are connected through a gear chain.

[0008] The roller is arranged inside the fixed ring in the scheme, and forms rolling contact with the outer wall of the rollover ring, so as to convert sliding friction into rolling friction to reduce the motion resistance. The gear chain connection is adopted in the scheme, and the gear chain transmission has high transmission accuracy and reliability. The rotation angle and speed of the rollover ring can be accurately controlled. The roller structure converts the friction form into rolling friction, and the driving power demand is reduced under the same speed.

[0009] The toothed chain transmission of the driving structure cooperates with the rolling rotation of the turnover ring inside the fixed ring, and the rotation angle of the turnover ring is more accurately controlled.

[0010] Further, the turnover ring comprises a second annular block, the outer side of the second annular block is in contact with the fixed ring, and a limiting device is further arranged on the second annular block and can be clamped into the fixed ring.

[0011] Further, the limiting device is located on the side of the second annular block close to the fixed ring, a groove is arranged at the limiting device, the limiting device is a pneumatic telescopic rod, and the pneumatic telescopic rod is located in the groove, and the telescopic direction of the telescopic rod is directed to the fixed ring.

[0012] Further, the fixed ring comprises a first annular block, an annular sliding groove is arranged on the inner side of the first annular block, and a plurality of rollers are arranged in the annular sliding groove, and the axis of the roller is parallel to the axis of the first annular block.

[0013] Further, the driving structure comprises a first servo motor, the output shaft of the first servo motor is connected with a driving gear, a driven gear is fixed to the outer side of the second annular block, and a toothed chain is connected with the driving gear and the driven gear.

[0014] Further, a supporting arm is further arranged, one end of the supporting arm is fixed to the degree-of-freedom platform, the other end of the one end of the supporting arm is located between the driven gear and the second annular block, and the supporting arm is rotationally connected with the driven gear and the second annular block.

[0015] Further, a rotating ring is coaxially arranged on the inner side of the second annular block, the rotating ring is rotationally connected with the second annular block, and an installation table is fixedly arranged on the inner side of the rotating ring.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The rollers are arranged on the inner side of the fixed ring, the rollers form rolling contact with the outer wall of the turnover ring, sliding friction is converted into rolling friction, the motion resistance is reduced, and the turnover ring is conveniently and smoothly turned over.

[0018] (2) The toothed chain transmission replaces the belt transmission, has higher transmission accuracy and reliability, can more accurately control the rotation angle and speed of the turnover ring, and the toothed chain transmission cooperates with the rolling of the rollers and can reduce the driving force requirement.

[0019] (3) The limiting device is arranged on the turnover ring, the turnover ring can be instantly clamped and stopped, the turnover angle can be more accurately controlled through the cooperation of the chain tooth transmission. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Fig. 1 This is a schematic diagram of the overall structure of this application;

[0022] Fig. 2 This is a cross-sectional view of the flip ring of this application;

[0023] The names corresponding to the reference numerals in the attached drawings are as follows: 1. Fixed ring; 101. First annular block; 102. Annular groove; 103. Roller; 2. Tilting ring; 201. Second annular block; 202. Groove; 203. Pneumatic telescopic rod; 204. Rotating ring; 3. Mounting platform; 4. Support arm; 5. Drive structure; 501. Driven gear; 502. Gear chain; 503. Drive gear; 504. First servo motor; 6. Degree of freedom platform. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0025] Example:

[0026] like Figs. 1-2 As shown, an MR flight simulation training platform includes a degree-of-freedom platform 6 and a flip ring 2. A fixed ring 1 is fixed on the degree-of-freedom platform 6. A roller 103 is provided on the inner wall of the fixed ring 1. The flip ring 2 is located inside the fixed ring 1 and the outer wall of the flip ring 2 is slidably connected to the roller 103.

[0027] It also includes a drive structure 5, which is disposed on the degree-of-freedom platform 6. The drive structure 5 is used to drive the flipping ring 2 to rotate within the fixed ring 1. The drive structure 5 and the flipping ring 2 are connected by a toothed chain 502.

[0028] In the prior art with application number CN202011410544.7, the rotation of the flip ring 2 is driven by a drive component and driven by belt transmission. The flip ring 2 is in sliding contact with the fixed ring 1, ensuring that the second annular block 201 can rotate inside the fixed ring 1. However, due to the large size and heavy weight of the flip ring 2 and the simulated cockpit, simple belt drive and rotational contact may not be enough to drive the flip ring 2 to the required position.

[0029] The inner side of the fixed ring 1 is provided with a roller 103, which forms rolling contact with the outer wall of the turnover ring 2, converts sliding friction into rolling friction to reduce the movement resistance, and can obtain greater angular acceleration under the condition of equal driving force.

[0030] The present scheme adopts a sprocket chain 502 connection, and the sprocket chain 502 transmission has high transmission accuracy and reliability. The rotation angle and speed of the turnover ring 2 can be accurately controlled, and rapid start-stop control can be realized.

[0031] The degree of freedom platform 6 is a six-degree-of-freedom platform 6 in the prior art, which can simulate a certain angle of inclination and a certain range of translation, simulate the attitudes of take-off, climb, landing and shaking of the aircraft, etc. The turnover ring in the original CN202011410544.7 patent can realize two directions of turnover, and the two turnover directions are perpendicular to each other and perpendicular to the horizontal plane. The present scheme can realize the composite simulation of multi-dimensional motion of the aircraft by cooperating with the turnover of the turnover ring 2 and the movement of the degree of freedom platform 6.

[0032] When the driving structure 5 is started, the driving structure 5 rotates, the sprocket chain 502 connecting the driving structure 5 and the turnover ring 2 accurately transmits the driving force, and the turnover ring 2 rotates along the rolling of the roller 103 inside the fixed ring, which can more accurately control the rotation angle of the turnover ring 2.

[0033] Further, the turnover ring 2 comprises a second annular block 201, the outer side of the second annular block 201 is in contact with the fixed ring 1, and a limiting device is further arranged on the second annular block 201, which can be clamped into the fixed ring 1.

[0034] The prior art sets the limiting structure on the fixed ring 1, which is fixed in position and cannot stop the turnover ring 2 in time. The present scheme sets the limiting device on the second annular block 201, which not only maintains the advantages of annular rotating structure, but also increases the active controllable mechanical locking function, solving the problem of difficult accurate positioning of the belt transmission system.

[0035] Further, the limiting device is located on one side of the second annular block 201 close to the fixed ring 1, a groove 202 is arranged at the limiting device, the limiting device is a pneumatic telescopic rod 203, and the pneumatic telescopic rod 203 is located in the groove 202, and the telescopic rod is telescopic in the direction of the fixed ring 1.

[0036] The pneumatic telescopic rod 203 refers to a mechanical component that realizes linear telescoping by air pressure driving, which can be realized by a combination structure of air cylinder and piston rod, and the telescopic length and force of the telescopic rod can be controlled by adjusting the air pressure.

[0037] The recess 202 refers to a recess structure arranged on the surface of the second annular block 201, which can be implemented in a rectangular or arc-shaped groove structure, and is used to accommodate the retracted state of the pneumatic telescopic rod 203.

[0038] When the rolling action of the flight simulation is performed, the flip ring 2 is rotated to the target angle under the driving of the driving structure 5, and then the pneumatic telescopic rod 203 is extended and embedded into the fixed ring 1, forming a mechanical locking state. When it is necessary to release the limiting, the pneumatic telescopic rod 203 is retracted into the recess 202, so that the flip ring 2 returns to the free rotation state.

[0039] Further, the fixed ring 1 comprises a first annular block 101, and an annular sliding groove 102 is arranged on the inner side of the first annular block 101, and a plurality of rollers 103 are arranged in the annular sliding groove 102, and the axis of the roller 103 is parallel to the axis of the first annular block 101.

[0040] Further, the driving structure 5 comprises a first servo motor 504, the output shaft of the first servo motor 504 is connected with a driving gear 503, a driven gear 501 is fixed on the outer side of the second annular block 201, and a toothed chain 502 connects the driving gear 503 and the driven gear 501.

[0041] In this embodiment, the first servo motor 504 drives the driving gear 503 to rotate through the output shaft, the driving gear 503 drives the driven gear 501 to rotate through the toothed chain 502, and the driven gear 501 drives the second annular block 201 to rotate around the axis of the fixed ring 1.

[0042] Further, it further comprises a support arm 4, one end of the support arm 4 is fixed on the degree of freedom platform 6, the other end of the one end of the support arm 4 is located between the driven gear 501 and the second annular block 201, and the support arm 4 is rotationally connected with the driven gear 501 and the second annular block 201.

[0043] The support arm 4 is arranged to support the second annular block 201.

[0044] Further, a rotating ring 204 is coaxially arranged on the inner side of the second annular block 201, the rotating ring 204 is rotationally connected with the second annular block 201, and the mounting table 3 is fixedly installed on the inner side of the rotating ring 204.

[0045] Specifically, the mounting table 3 is arranged on the rotating ring 204, and the mounting table 3 is used to install a simulated cockpit.

[0046] In the implementation of the above scheme, the second annular block 201 is driven to rotate by the driving structure 5; the side of the rotating ring 204 protrudes from the side of the second annular block 201, the outer side of the protruding part of the second annular block 201 is in the form of a gear, a motor is arranged outside the second annular block 201, the output shaft of the motor is connected with a gear, and the gear drives the rotating ring 204 to rotate. The second annular block 201 and the rotating ring 204 are rotationally connected, and the two can directly or indirectly carry the mounting table 3 to rotate in different directions, cooperate with the freedom platform 6, and the mounting table 3 can realize overturning in a larger angular range in space.

[0047] The above detailed description is further used to explain the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific implementation of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An MR (Rapid Resonance) flight simulation training platform, characterized in that, The system includes a platform (6) with degrees of freedom and a rotating ring (2). A fixed ring (1) is fixed on the platform (6). A roller (103) is provided on the inner wall of the fixed ring (1). The rotating ring (2) is located inside the fixed ring (1) and the outer wall of the rotating ring (2) is slidably connected to the roller (103). It also includes a drive structure (5), which is disposed on the degree-of-freedom platform (6). The drive structure (5) is used to drive the flip ring (2) to rotate within the fixed ring (1). The drive structure (5) and the flip ring (2) are connected by a toothed chain (502).

2. The MR flight simulation training platform as described in claim 1, characterized in that: The flipping ring (2) includes a second annular block (201), the outer side of which contacts the fixed ring (1), and a limiting device is provided on the second annular block (201), which can be locked into the fixed ring (1).

3. The MR flight simulation training platform as described in claim 2, characterized in that: The limiting device is located on the side of the second annular block (201) near the fixed ring (1). The limiting device is provided with a groove (202). The limiting device is a pneumatic telescopic rod (203) and the pneumatic telescopic rod (203) is located in the groove (202). The telescopic rod extends in the direction of extension and retraction towards the fixed ring (1).

4. An MR flight simulation training platform as described in any one of claims 2-3, characterized in that: The fixing ring (1) includes a first annular block (101), and an annular groove (102) is provided on the inner side of the first annular block (101). A plurality of rollers (103) are laid in the annular groove (102), and the axis of the rollers (103) is parallel to the axis of the first annular block (101).

5. The MR flight simulation training platform as described in claim 4, characterized in that: The drive structure (5) includes a first servo motor (504), the output shaft of the first servo motor (504) is connected to the drive gear (503), the outer side of the second annular block (201) is fixed with a driven gear (501), and the gear chain (502) connects the drive gear (503) and the driven gear (501).

6. The MR flight simulation training platform as described in claim 5, characterized in that: It also includes a support arm (4), one end of which is fixed to the degree-of-freedom platform (6), and the other end of which is located between the driven gear (501) and the second annular block (201). The support arm (4) is rotatably connected to the driven gear (501) and the second annular block (201).

7. The MR flight simulation training platform as described in claim 2, characterized in that: A rotating ring (204) is coaxially arranged on the inner side of the second annular block (201). The rotating ring (204) is rotatably connected to the second annular block (201). An mounting platform (3) is fixedly installed on the inner side of the rotating ring (204).

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