A non-powered backup helicopter underwater escape training device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]直升机水下逃生训练装置的横滚的驱动方式有气囊、气动马达、电机，大多数直升机水下逃生训练装置采用气囊作为横滚驱动装置，气囊式直升机水下逃生训练装置依靠浮力驱动训练模拟舱横滚，横滚速度和横滚角度难以控制；以气动马达为驱动装置的直升机水下逃生训练装置，因为动力源是压缩空气，存在响应速度慢的缺陷，难以快速驱动水下逃生训练模拟舱横滚；以电机为驱动装置的直升机水下逃生训练装置因为在水下环境使用有漏电风险，存在较大的训练安全隐患；现有直升机水下逃生训练装置的驱动装置各自存在一定的局限性
[0015]本申请的有益效果是：本申请提供的无动力备份的直升机水下逃生训练装置通过气动马达控制主动齿轮旋转带动啮合的驱动销推动驱动环板旋转，进而带动驱动环板连接的训练模拟舱旋转，使训练模拟舱实现横滚运动产生姿态变化来进行水下逃生模拟，并利用训练模拟舱底部的底部气囊和两侧的侧部气囊辅助进行姿态调整，不仅能准确快速的控制训练模拟舱的横滚速度和横滚角度，还能有效降低气流噪音和避免漏电风险。
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Figure CN224625090U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of simulation training devices, and more specifically, to a helicopter underwater escape training device without power backup. Background Technology
[0002] The existing underwater escape training device for helicopters consists of an underwater escape training simulator, an attitude adjustment mechanism, and a lifting platform. Trainees sit inside the underwater escape training simulator. The lifting platform lifts the simulator using the attitude adjustment mechanism. Driven by a power source, the attitude adjustment mechanism causes the simulator to roll and flip, simulating a helicopter crashing into the water. After the simulator rolls 180°, the helicopter crew conducts escape training in an inverted position.
[0003] The roll drive methods for helicopter underwater escape training devices include airbags, pneumatic motors, and electric motors. Most helicopter underwater escape training devices use airbags as the roll drive device. However, airbag-driven helicopter underwater escape training devices rely on buoyancy to drive the training simulator to roll, making it difficult to control the roll speed and roll angle. Helicopter underwater escape training devices driven by pneumatic motors suffer from slow response speed because the power source is compressed air, making it difficult to quickly drive the underwater escape training simulator to roll. Helicopter underwater escape training devices driven by electric motors pose a significant safety hazard due to the risk of electric leakage when used in an underwater environment. Each of the existing drive devices for helicopter underwater escape training devices has its own limitations. Utility Model Content
[0004] The purpose of this application is to provide a helicopter underwater escape training device with no power backup, which can accurately and quickly control the roll speed and roll angle of the training simulator, and can also effectively reduce airflow noise and avoid the risk of electric leakage.
[0005] This application is implemented as follows: This application provides a helicopter underwater escape training device without power backup, which includes: The training simulation chamber has multiple bottom airbags arranged at intervals along the length direction at the bottom, and multiple side airbags arranged at intervals along the length direction on both sides of the training simulation chamber. An annular connecting shell is used to be fitted onto the outside of the training simulation chamber. The connecting shell is connected to multiple drive pins, which are arranged at intervals along the circumference of the connecting shell. The axis of the drive pin is parallel to the axis of the connecting shell. The inner wall of the connecting shell has an opening extending along its circumference. An annular drive ring plate is rotatably disposed within the connecting housing, with the inner wall of the drive ring plate extending out of the opening and fitting onto and connecting to the outer wall of the training simulation chamber. A pneumatic motor is connected to the connecting housing. The output shaft of the pneumatic motor is connected to a drive gear that meshes with a drive pin. When the drive gear rotates, it drives the drive ring plate to rotate through the meshing drive pin.
[0006] In some alternative implementations, a gearbox is connected to the top of the housing, and a pneumatic motor is connected to the gearbox.
[0007] In some alternative implementations, at least one shackle is attached to the top of the gearbox.
[0008] In some alternative implementations, the top two sides of the connecting housing are respectively provided with reinforcing plates that are connected to both ends of the gearbox, and weight reduction holes are respectively opened on the two reinforcing plates.
[0009] In some alternative implementations, the output shaft of the pneumatic motor extends into the gearbox and connects to the drive gear, while the connecting housing is connected to a rotatable driven gear, which meshes with both the drive gear and the drive pin.
[0010] In some alternative implementations, a position sensor is connected to the bottom of the gearbox, and the training simulation chamber is connected to multiple sensing heads arranged at circumferential intervals. When the training simulation chamber rotates, each sensing head moves sequentially to the sensing area of the position sensor.
[0011] In some alternative embodiments, the connecting housing is connected to at least one rotatable combined bearing for rolling against the outer peripheral wall of the drive ring plate.
[0012] In some alternative implementations, the output shaft of the pneumatic motor is connected to an absolute angle sensor.
[0013] In some alternative implementations, the drive pin is rotatably connected to the connecting housing.
[0014] In some alternative implementations, a lifting mechanism connected to the lifting lugs is also included, which drives the lifting lugs to raise and lower the training simulator.
[0015] The beneficial effects of this application are as follows: The helicopter underwater escape training device without power backup provided by this application uses a pneumatic motor to control the rotation of the active gear, which drives the meshing drive pin to push the drive ring plate to rotate, thereby driving the training simulation cabin connected to the drive ring plate to rotate. This enables the training simulation cabin to achieve roll motion and generate attitude changes to simulate underwater escape. Furthermore, the bottom airbag at the bottom of the training simulation cabin and the side airbags on both sides are used to assist in attitude adjustment. This not only allows for accurate and rapid control of the roll speed and roll angle of the training simulation cabin, but also effectively reduces airflow noise and avoids the risk of electric leakage. Attached Figure Description
[0016] 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.
[0017] Figure 1 A schematic diagram of the structure of the unpowered backup helicopter underwater escape training device provided in the embodiments of this application; Figure 2 A partial structural schematic diagram from a first-view perspective of the unpowered backup helicopter underwater escape training device provided in the embodiments of this application; Figure 3 A partial structural schematic diagram from a second perspective of the unpowered backup helicopter underwater escape training device provided in the embodiments of this application; Figure 4 A partial structural diagram of the helicopter underwater escape training device with no-power backup provided in the embodiments of this application from a third-person perspective; Figure 5 A first-view structural schematic diagram of the connection between the housing, drive ring plate, gearbox, and lifting lugs in the unpowered backup helicopter underwater escape training device provided in this application embodiment; Figure 6 A partial cross-sectional view of the connecting shell, drive ring plate, gearbox, and lifting lugs in the unpowered backup helicopter underwater escape training device provided in this application embodiment; Figure 7 This is a partial cross-sectional view from a third perspective of the connecting shell, drive ring plate, gearbox, and lifting lugs in the unpowered backup helicopter underwater escape training device provided in this application embodiment.
[0018] In the diagram: 100, drive ring plate; 110, connecting housing; 111, opening; 112, receiving cavity; 120, pneumatic motor; 130, drive pin; 140, drive gear; 150, gearbox; 160, lifting lug; 161, lifting lug shaft; 170, reinforcing plate; 180, weight reduction hole; 190, driven gear; 200, combined bearing; 210, absolute angle sensor; 300, training simulation chamber; 310, bottom airbag; 320, side airbag; 330, position sensor; 340, sensing head; 400, lifting mechanism; 410, wire rope. Detailed Implementation
[0019] 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.
[0020] 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.
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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.
[0025] 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.
[0026] The features and performance of the helicopter underwater escape training device of this application will be further described in detail below with reference to the embodiments.
[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this application embodiment provides a helicopter underwater escape training device with no power backup, which includes a training simulation cabin 300, an annular connecting shell 110 sleeved on the outside of the training simulation cabin 300, an annular drive ring plate 100 rotatably disposed in the connecting shell 110, a pneumatic motor 120, and a lifting mechanism 400 connected to the connecting shell 110 by a steel wire rope 410. The training simulation chamber 300 has two bottom airbags 310 arranged at intervals along the length direction at the bottom, and two side airbags 320 arranged at intervals along the length direction on each side of the training simulation chamber 300; the outer wall of the training simulation chamber 300 is connected to six sensor heads 340 arranged at intervals along its circumference.
[0028] The connecting housing 110 has a receiving cavity 112 for accommodating the drive ring plate 100. The connecting housing 110 is connected to drive pins 130 arranged circumferentially therebetween. The drive pins 130 are rotatably connected to the connecting housing 110, and their axes are parallel to the axis of the connecting housing 110. The inner wall of the connecting housing 110 has an opening 111 extending circumferentially therebetween. The inner wall of the drive ring plate 100 extends out of the opening 111 and is fitted and connected to the outer wall of the training simulation chamber 300. A gearbox 150 is connected to the top of the connecting housing 110, and a pneumatic motor 120 is connected to the gearbox 150. The output shaft of the pneumatic motor 120 extends into the gearbox 150 and is connected to an active... Gear 140, connected to the housing 110 via a gear shaft, has a rotatable driven gear 190. The driven gear 190 meshes with the driving gear 140 and the drive pin 130. When the driving gear 140 rotates, it drives the drive ring plate 100 to rotate through the meshing driven gear 190 and the drive pin 130. The top of the gearbox 150 is provided with a lifting lug 160 connected to the wire rope 410. The bottom ends of the lifting lug 160 are hinged to the top ends of the gearbox 150 via lifting lug shafts 161. The top sides of the housing 110 are provided with reinforcing plates 170 connected to the ends of the gearbox 150. The two reinforcing plates 170 are provided with weight reduction holes 180. The housing 110 is connected to four rotatable combined bearings 200, which are symmetrically arranged on both sides of the driven gear 190. The combined bearings 200 are used to roll and press against the outer peripheral wall of the drive ring plate 100. The output shaft of the pneumatic motor 120 is connected to an absolute angle sensor 210. A waterproof position sensor 330 is connected to the bottom of the gearbox 150. When the training simulation chamber 300 rotates, each sensor head 340 moves sequentially to the sensing area of the position sensor 330.
[0029] When installing the unpowered backup helicopter underwater escape training device provided in this application embodiment, the training simulation cabin 300 is passed through the middle of the annular connecting shell 110, and the drive ring plate 100, which is rotatably disposed on the inner wall of the cavity 112 inside the connecting shell 110, is extended out of the opening 111 and then sleeved and welded to the outer wall of the training simulation cabin 300. Then, the lifting lug 160 connected to the gearbox 150 at the top of the connecting shell 110 is connected to the lifting mechanism 400 through the wire rope 410 to complete the installation.
[0030] The working principle of the unpowered backup helicopter underwater escape training device provided in this application embodiment is as follows: The training simulation cabin 300 and the connecting shell 110 are lifted by the lifting mechanism 400 and moved above the test water pool. The lifting mechanism 400 is then controlled to lower the training simulation cabin 300 and the connecting shell 110, connected by the wire rope 410, into the test water pool. When the test personnel enter the training simulation cabin 300, the pneumatic motor 120 is started, driving the drive gear 140 to rotate. The rotation of the drive gear 140 drives the driven gear 190 to rotate, causing the rotating driven gear 190 to push the meshing drive pins 130 to rotate, thereby driving the drive ring plate 100 and the training simulation cabin 300 to rotate, achieving roll for attitude adjustment. The rotation of the driven gear 190 drives the meshing drive pins 130 to rotate, causing the drive ring plate 100 and the training simulation cabin 300 to rotate. Simultaneously, the two bottom airbags 31 at the bottom of the training simulation cabin 300 are activated. The inflation generates buoyancy and torque to assist the rotation of the training simulation chamber 300. It also inflates the side airbags 320 on one side wall of the rotating training simulation chamber 300, generating buoyancy that works in conjunction with the bottom airbags 310 to promote the rotation of the training simulation chamber 300. When the training simulation chamber 300 rotates 45 degrees to a horizontal position and needs to be flipped further, the two bottom airbags 310 at the bottom of the training simulation chamber 300 are deflated, and the inflated side airbags 320 on one side wall of the training simulation chamber 300 are deflated, while the side airbags 320 on the other side wall of the training simulation chamber 300 are inflated. Thus, the bottom airbags 310 and side airbags 320 on the bottom and side walls of the training simulation chamber 300 assist in flipping the training simulation chamber 300. Furthermore, even if the pneumatic motor 120 malfunctions and cannot drive the training simulation chamber 300 to rotate, the bottom airbags 310 and side airbags 320 can still be used to utilize buoyancy to drive the training simulation chamber 300 to flip and complete the test.
[0031] The unpowered backup helicopter underwater escape training device provided in this application uses a pneumatic motor 120 to drive the drive pin 130 to rotate via the drive gear 140 and the driven gear 190, thereby driving the drive ring plate 100 and the training simulation cabin 300 to rotate and achieve roll for attitude adjustment. At the same time, the bottom airbag 310 and side airbag 320 set at the bottom and side walls of the training simulation cabin 300 are used to assist in the roll of the training simulation cabin 300. On the one hand, it can overcome the mechanical failure caused by the deformation and seizing of the gear meshing. On the other hand, it can use the airbags to drive the roll to improve the experimental efficiency. It can operate underwater for a long time, with stable transmission and high fault tolerance.
[0032] Meanwhile, a waterproof position sensor 330 is connected to the bottom of the gearbox 150, and six sensor heads 340 are arranged circumferentially on the outer wall of the training simulation chamber 300. When the training simulation chamber 300 rotates, each sensor head 340 moves sequentially to the sensing area of the position sensor 330. The position sensor 330 senses the position changes of the sensor heads 340 at different positions on the outer wall of the training simulation chamber 300, which facilitates the adjustment of the roll speed according to the preset roll angle and the actual roll angle and angular velocity, thereby greatly improving the response speed and control accuracy.
[0033] When the drive ring plate 100 and the training simulation chamber 300 rotate, the four combined bearings 200 connected to the connecting housing 110 roll against the top outer peripheral wall of the drive ring plate 100, thereby using the combined bearings 200 to limit the top position of the drive ring plate 100 and bear the axial stiffness, while also playing the role of rolling to guide the rotation of the drive ring plate 100, ensuring that the drive ring plate 100 stably drives the training simulation chamber 300 to rotate and achieve attitude adjustment.
[0034] The top of the gearbox 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 gearbox 150 via lifting lug shafts 161. This allows operators to easily connect the lifting lug 160 to the lifting mechanism 400 via wire rope 410 to drive the training simulation cabin 300 to be raised or lowered into the test water pool or detached. The top ends of the connecting housing 110 are respectively raised to form reinforcing plates 170 that are connected to the ends of the gearbox 150. This can effectively improve the connection strength between the connecting housing 110 and the gearbox 150 and ensure the stability of the lifting lug 160 connected to the top of the gearbox 150 during lifting. The two reinforcing plates 170 are respectively provided with weight reduction holes 180 to reduce the weight of the reinforcing plates 170. 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 driving gear 140 and the driven gear 190, thereby monitoring the rotation angle and real-time attitude of the drive ring plate 100 and the training simulation chamber 300 in real time.
[0035] In this embodiment, the lifting mechanism 400 can be a bridge crane or other device that can drive the training simulator 300 and the connecting shell 110 to lift and move.
[0036] 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 training device with no power backup, characterized in that, It includes: The training simulation chamber has multiple bottom airbags spaced apart along the length direction at the bottom and multiple side airbags spaced apart along the length direction on both sides. An annular connecting shell is used to be fitted onto the outside of the training simulation chamber. The connecting shell is connected to a plurality of drive pins, each of which is arranged at intervals along the circumference of the connecting shell. The axis of the drive pin is parallel to the axis of the connecting shell. The inner wall of the connecting shell is provided with an opening extending along its circumference. An annular drive ring plate is rotatably disposed within the connecting housing, and the inner wall of the drive ring plate extends out of the opening and is sleeved and connected to the outer wall of the training simulation chamber; A pneumatic motor is connected to the connecting housing. The output shaft of the pneumatic motor is connected to a drive gear that meshes with the drive pin. When the drive gear rotates, it drives the drive ring plate to rotate through the meshing drive pin.
2. The unpowered backup helicopter underwater escape training device according to claim 1, characterized in that, A gearbox is connected to the top of the connecting housing, and the pneumatic motor is connected to the gearbox.
3. The unpowered backup helicopter underwater escape training device according to claim 2, characterized in that, At least one lifting lug is attached to the top of the gearbox.
4. The unpowered backup helicopter underwater escape training device according to claim 2, characterized in that, The top two sides of the connecting housing are respectively provided with reinforcing plates that are connected to both ends of the gearbox, and weight reduction holes are respectively opened on the two reinforcing plates.
5. The unpowered backup helicopter underwater escape training device according to claim 2, characterized in that, The output shaft of the pneumatic motor extends into the gearbox and connects to the drive gear. The connecting housing is connected to a rotatable driven gear, which meshes with the drive gear and the drive pin respectively.
6. The unpowered backup helicopter underwater escape training device according to claim 2, characterized in that, A position sensor is connected to the bottom of the gearbox, and a plurality of sensing heads are connected to the training simulation chamber at intervals along its circumference. When the training simulation chamber rotates, each of the sensing heads moves sequentially to the sensing area of the position sensor.
7. The unpowered backup helicopter underwater escape training device according to claim 1, characterized in that, The connecting housing is connected to at least one rotatable combined bearing, which is used to roll against the outer peripheral wall of the drive ring plate.
8. The unpowered backup helicopter underwater escape training device according to claim 1, characterized in that, The output shaft of the pneumatic motor is connected to an absolute angle sensor.
9. The unpowered backup helicopter underwater escape training device according to claim 1, characterized in that, The drive pin is rotatably connected to the connecting housing.
10. The helicopter underwater escape training device with no power backup according to claim 3, characterized in that, It also includes a lifting mechanism connected to the lug, which drives the lug to raise and lower the training simulation cabin.