Helicopter underwater escape simulator attitude adjustment mechanism

Abstract

A helicopter underwater escape simulator attitude adjustment mechanism relates to the field of simulators. The mechanism includes an annular support shell fitted onto the outside of the underwater escape simulator, an annular connecting web rotatably disposed within the support shell, and a pneumatic motor. The support shell is connected to multiple drive pins, which are spaced apart circumferentially around the support shell, with their axes parallel to the support shell's axis. The inner wall of the support shell has an opening extending circumferentially. The inner wall of the connecting web extends beyond the opening and is fitted onto and connected to the outer wall of the underwater escape simulator. The output shaft of the pneumatic motor is connected to a drive gear that meshes with the drive pins. When the drive gear rotates, it drives the connecting web to rotate via the meshing drive pins. This helicopter underwater escape simulator attitude adjustment mechanism significantly improves the accuracy and stability of the tilting transmission, prevents the transmission mechanism from seizing up, greatly reduces costs, and improves economic efficiency.

Description

Technical Field

[0001] This application relates to the field of simulators, and more specifically, to an attitude adjustment mechanism for a helicopter underwater escape simulator. Background Technology

[0002] Existing helicopter underwater escape training devices consist of an underwater escape training simulator, an attitude adjustment mechanism, and a lifting platform. The attitude adjustment mechanism is primarily used for attitude control of the underwater escape training simulator. Most existing simulators lack a drive mechanism, relying entirely on built-in airbag floats at the bottom of the simulator for rotation. This lack of feedback on the simulator's position and angle prevents accurate positioning, and the absence of external driving force results in slow response times. Furthermore, the roll angle and roll rate cannot be adjusted. A few attitude adjustment mechanisms use pneumatic motors or electric motors as the driving force, employing traditional gear meshing to drive the underwater escape training simulator's rolling attitude adjustment. This is prone to deformation and seizing, leading to mechanical failures and failing to meet training requirements. Utility Model Content

[0003] The purpose of this application is to provide an attitude adjustment mechanism for a helicopter underwater escape simulator, which greatly improves the accuracy and stability of the rollover transmission, avoids the transmission mechanism from getting stuck, and greatly reduces costs and improves economic efficiency.

[0004] This application is implemented as follows: This application provides an attitude adjustment mechanism for a helicopter underwater escape simulator, which includes: An annular support shell is used to fit over the outside of the helicopter underwater escape simulation cabin. The support shell is connected to multiple drive pins, which are spaced apart along the circumference of the support shell. The axis of the drive pins is parallel to the axis of the support shell. The inner wall of the support shell has an opening extending along its circumference. The annular connecting web is rotatably housed within the supporting shell, and the inner wall of the connecting web extends out of the opening and is fitted and connected to the outer wall of the helicopter underwater escape simulation cabin. A pneumatic motor is connected to the support housing. The output shaft of the pneumatic motor is connected to a drive gear that meshes with the transmission pin teeth. When the drive gear rotates, it drives the connecting web plate to rotate through the meshing transmission pin teeth.

[0005] In some alternative implementations, a motor mount is connected to the top of the support housing, and a pneumatic motor is connected to the motor mount.

[0006] In some alternative implementations, at least one lifting lug is attached to the top of the motor mount.

[0007] In some alternative implementations, the top two ends of the support housing protrude to form reinforcing ribs that connect to the two ends of the motor mounting base.

[0008] In some alternative implementations, the reinforcing ribs have perforated holes.

[0009] In some alternative implementations, the output shaft of the pneumatic motor extends into the motor mount and connects to the drive gear, while the support housing is connected to a rotatable transmission gear that meshes with both the drive gear and the transmission pin.

[0010] In some alternative embodiments, the support housing is connected to at least one rotatable combined bearing for rolling against the outer peripheral wall of the connecting web.

[0011] In some alternative implementations, the output shaft of the pneumatic motor is connected to an absolute angle sensor.

[0012] In some alternative implementations, the drive pin teeth are rotatably connected to the corresponding support housing.

[0013] In some alternative implementations, the bottom ends of the lifting lug are hinged to the top ends of the motor mounting base via rotating shafts, with the two rotating shafts arranged coaxially.

[0014] The beneficial effects of this application are as follows: The attitude adjustment mechanism for the helicopter underwater escape simulator provided by this application includes an annular support shell for being fitted onto the outside of the helicopter underwater escape simulator, an annular connecting web plate rotatably disposed within the support shell, and a pneumatic motor connected to the support shell. The support shell is connected with multiple transmission pins, each transmission pin being arranged at intervals along the circumference of the support shell. The axis of the transmission pins is parallel to the axis of the support shell. The inner wall of the support shell is provided with an opening extending along its circumference. The inner wall of the connecting web plate extends out of the opening and is fitted onto and connected to the outer wall of the helicopter underwater escape simulator. The output shaft of the pneumatic motor is connected to a drive gear that meshes with the transmission pins. When the drive gear rotates, it drives the connecting web plate to rotate through the meshing transmission pins. The helicopter underwater escape simulator attitude adjustment mechanism provided in this application uses a pneumatic motor to control the rotation of the drive gear, which in turn drives the meshing transmission pin to rotate the connecting web plate. This, in turn, causes the helicopter underwater escape simulator, which is fitted and connected to the connecting web plate, to rotate, enabling the helicopter underwater escape simulator to achieve roll motion and generate attitude changes for underwater escape simulation. This greatly improves the accuracy and stability of the roll transmission, avoids the transmission mechanism from getting stuck, and significantly reduces costs and improves economic efficiency. Attached Figure Description To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A first-view structural schematic diagram of the attitude adjustment mechanism for a helicopter underwater escape simulator provided in an embodiment of this application; Figure 2 A partial cross-sectional view of the attitude adjustment mechanism of the helicopter underwater escape simulator provided in an embodiment of this application; Figure 3 A partial cross-sectional view of the attitude adjustment mechanism of the helicopter underwater escape simulator provided in this embodiment of the application; Figure 4 This is a partial cross-sectional view of the attitude adjustment mechanism of the helicopter underwater escape simulator provided in the embodiments of this application.

[0016] In the diagram: 100, connecting web plate; 110, supporting shell; 111, opening; 112, cavity; 120, pneumatic motor; 130, transmission pin; 140, drive gear; 150, motor mounting base; 160, lifting lug; 161, rotating shaft; 170, reinforcing rib; 180, hollow hole; 190, transmission gear; 200, combined bearing; 210, absolute angle sensor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The features and performance of the helicopter underwater escape simulator attitude adjustment mechanism of this application will be further described in detail below with reference to the embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, this application provides an attitude adjustment mechanism for a helicopter underwater escape simulator, which includes an annular support shell 110 sleeved on the outside of the helicopter underwater escape simulator. The inner sidewall of the support shell 110 has an opening 111 extending circumferentially therein. The support shell 110 has an annular cavity 112 communicating with the opening 111 inside. An annular connecting web 100 rotatable about its axis is provided in the cavity 112 inside the support shell 110. The inner sidewall of the connecting web 100 extends out of the opening 111 and is sleeved and connected to the outer sidewall of the helicopter underwater escape simulator. The support shell 110 is connected with transmission pins arranged at intervals along its circumference. The axis of the transmission pin tooth 130 is parallel to the axis of the support housing 110. The top of the support housing 110 is connected to the motor mounting base 150, and the motor mounting base 150 is connected to the pneumatic motor 120. The output shaft of the pneumatic motor 120 extends into the motor mounting base 150 and is connected to the drive gear 140. The support housing 110 is connected to the rotatable transmission gear 190 through the gear shaft. The transmission gear 190 meshes with the drive gear 140 and the transmission pin tooth 130 respectively. When the drive gear 140 rotates, it drives the transmission pin tooth 130 to rotate through the meshing transmission gear 190, thereby pushing the connecting web plate 100 and the helicopter underwater escape simulation cabin to rotate.

[0026] The top of the motor mounting base 150 is connected to a lifting lug 160. The bottom ends of the lifting lug 160 are respectively hinged to the top ends of the motor mounting base 150 via rotating shafts 161, and the two rotating shafts 161 are arranged coaxially. The top ends of the support housing 110 protrude to form reinforcing ribs 170 that connect to the ends of the motor mounting base 150. The two reinforcing ribs 170 are respectively provided with hollow holes 180. The support housing 110 is connected to four rotatable combined bearings 200. The combined bearings 200 are used to roll and press against the outer peripheral wall of the connecting web 100. The four combined bearings 200 are symmetrically arranged on both sides of the transmission gear 190. The output shaft of the pneumatic motor 120 is connected to an absolute angle sensor 210.

[0027] The working principle of the helicopter underwater escape simulator attitude adjustment mechanism provided in this application embodiment is as follows: The support shell 110 of the helicopter underwater escape simulator attitude adjustment mechanism is fitted onto the outside of the helicopter underwater escape simulator. The connecting web plate 100 is fitted onto the inner wall of the opening 111 on the support shell 110 and welded to the outer wall of the helicopter underwater escape simulator to complete the installation of the helicopter underwater escape simulator attitude adjustment mechanism. Then, the helicopter underwater escape simulator attitude adjustment mechanism and the helicopter underwater escape simulator are hoisted together to the top of the test pool. The helicopter underwater escape simulator attitude adjustment mechanism and the helicopter underwater escape simulator are lowered into the test pool using a lifting device. When the experimental personnel enter... After the helicopter underwater escape simulator is installed, the control pneumatic motor 120 starts and drives the drive gear 140 to rotate. When the drive gear 140 rotates, it drives the transmission gear 190 to rotate. The rotating transmission gear 190 pushes the meshing transmission pins 130 to rotate, which in turn drives the connecting web plate 100 and the helicopter underwater escape simulator to rotate and achieve roll for attitude adjustment. The rotation of the transmission gear 190 drives the meshing transmission pins 130 to rotate, which in turn drives the connecting web plate 100 and the helicopter underwater escape simulator to rotate. This can overcome the mechanical failure caused by the easy deformation and seizing of the gear meshing, as well as the problems of inaccurate and difficult-to-control roll angle driven by the airbag float. It can operate underwater for a long time, with stable transmission and high fault tolerance.

[0028] Meanwhile, when the connecting web plate 100 and the helicopter underwater escape simulator rotate, the four combined bearings 200 connected to the support shell 110 roll and press against the top outer peripheral wall of the connecting web plate 100, thereby using the combined bearings 200 to limit the top position of the connecting web plate 100 and bear the axial stiffness, while also playing the role of rolling to guide the rotation of the connecting web plate 100, ensuring that the connecting web plate 100 stably drives the helicopter underwater escape simulator to rotate and achieve attitude adjustment.

[0029] The top of the motor mounting base 150 is connected to a lifting lug 160. The bottom ends of the lifting lug 160 are respectively hinged to the top ends of the motor mounting base 150 via a pivot 161. This allows operators to easily connect the lifting lug 160 to the lifting device via a lifting cable to drive the helicopter underwater escape simulator attitude adjustment mechanism and the helicopter underwater escape simulator to or from the test pool. The top ends of the support housing 110 protrude to form reinforcing ribs 170 that connect to the ends of the motor mounting base 150. This effectively improves the connection strength between the support housing 110 and the motor mounting base 150, ensuring the stability of the lifting lug 160 connected to the top of the motor mounting base 150 during lifting. The two reinforcing ribs 170 are provided with perforated holes 180 to reduce their weight. The output shaft of the pneumatic motor 120 is connected to an absolute angle sensor 210, which can detect the rotation angle of the output shaft of the pneumatic motor 120, the drive gear 140 and the transmission gear 190, thereby monitoring the rotation angle and real-time attitude of the connecting web plate 100 and the helicopter underwater escape simulator in real time.

[0030] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A helicopter underwater escape simulator attitude adjustment mechanism, characterized in that, It includes: An annular support shell is used to fit over the outside of a helicopter underwater escape simulation cabin. The support shell is connected to multiple drive pins, each of which is spaced apart circumferentially along the support shell. The axis of the drive pins is parallel to the axis of the support shell. The inner wall of the support shell has an opening extending circumferentially. An annular connecting web is rotatably disposed within the supporting shell, and the inner wall of the connecting web extends out of the opening and is fitted and connected to the outer wall of the helicopter underwater escape simulation cabin. A pneumatic motor is connected to the support housing. The output shaft of the pneumatic motor is connected to a drive gear that meshes with the transmission pin teeth. When the drive gear rotates, it drives the connecting web plate to rotate through the meshing transmission pin teeth.

2. The attitude adjustment mechanism for the helicopter underwater escape simulation cabin according to claim 1, characterized in that, The top of the support housing is connected to a motor mounting base, and the pneumatic motor is connected to the motor mounting base.

3. The attitude adjustment mechanism for the helicopter underwater escape simulation cabin according to claim 2, characterized in that, At least one lifting lug is connected to the top of the motor mounting bracket.

4. The attitude adjustment mechanism for the helicopter underwater escape simulation cabin according to claim 2, characterized in that, The top two ends of the support housing protrude to form reinforcing ribs that connect to the two ends of the motor mounting base.

5. The attitude adjustment mechanism for the helicopter underwater escape simulator according to claim 4, characterized in that, The reinforcing rib plate has perforated holes.

6. The attitude adjustment mechanism for the helicopter underwater escape simulator according to claim 2, characterized in that, The output shaft of the pneumatic motor extends into the motor mounting base and connects to the drive gear. The support housing is connected to a rotatable transmission gear, which meshes with the drive gear and the transmission pin, respectively.

7. The attitude adjustment mechanism for the helicopter underwater escape simulator according to claim 1, characterized in that, The supporting housing is connected to at least one rotatable combined bearing, which is used to roll against the outer peripheral wall of the connecting web.

8. The attitude adjustment mechanism for the helicopter underwater escape simulator according to claim 1, characterized in that, The output shaft of the pneumatic motor is connected to an absolute angle sensor.

9. The attitude adjustment mechanism for the helicopter underwater escape simulation cabin according to claim 1, characterized in that, The transmission pin is rotatably connected to the corresponding support housing.

10. The attitude adjustment mechanism for the helicopter underwater escape simulation cabin according to claim 3, characterized in that, The bottom ends of the lifting lug are respectively hinged to the top ends of the motor mounting base via rotating shafts, and the two rotating shafts are arranged coaxially.

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