Self-driven throttle lever damping force device and driving method
By designing a self-driven throttle lever damping device and utilizing a worm gear structure to provide stable damping force feedback and adjustable control force, the problems of instability and short life of existing throttle lever damping devices are solved, thereby improving flight safety and operational portability.
Patent Information
- Application Number
- CN202510934988.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-08
- Publication Date
- 2025-10-10
AI Technical Summary
Existing throttle lever damping devices are unstable in flight environments, have a short service life, are difficult to deploy on small products, and cannot achieve self-drive, affecting flight safety and economy.
A self-driven damping device is designed, which includes a turbine, a joystick, a deep groove ball bearing, a damping force adjustment nut, a thrust bearing, a disc spring, a main friction plate, a secondary friction plate and a worm. Stable damping force feedback is achieved through the worm gear structure, and the damping force can be adjusted. The device is suitable for self-drive and manual operation.
A miniaturized, highly stable, reliable, and long-life damping device has been realized, which can meet the needs of different pilots and improve flight safety and operational portability.
Smart Images
Figure CN120759878A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a self-driven throttle lever damping force device and driving method, belonging to the field of aeronautical engineering technology. The device can be used to provide a stable damping force sensation during the travel of an aircraft's rotary throttle lever, while also adding a motor for self-drive, thereby improving the portability and safety of the pilot's operation. Background Art
[0002] The throttle control panel is the pilot's direct control device for operating the engine. By manipulating the throttle lever, the displacement signal from the sensor inside the throttle panel is converted into an electrical signal, changing the engine power and thus controlling the aircraft's thrust. The magnitude and stability of the throttle lever's damping force during operation directly impacts the pilot's likelihood of misoperation or over-operation. Due to the influence of the external flight environment, conventional damping devices are prone to significant variations in damping force within a single flight cycle and a short product lifecycle. Given the limited space within the cabin, smaller, lighter, and more stable damping devices would significantly improve the aircraft's economy and safety. As flight control becomes increasingly automated, the demand for automatically actuated throttle control panels is increasing. Therefore, a self-actuated damping device is needed to meet the requirements of specialized flight environments.
[0003] At present, in domestic engineering applications, rubber dampers, hysteresis dampers, etc. are used to provide this type of throttle damping force. Rubber dampers are easily affected by the environment and the damping force becomes unstable. Hysteresis dampers can provide stable damping force, but the device is large and difficult to arrange on smaller products. Therefore, there is an urgent need to design a small, stable, reliable, self-driven, and adjustable damping force damping device to provide damping force to the throttle lever. Summary of the Invention
[0004] In order to solve the problems of unstable throttle lever damping force feedback and short service life, the present invention designs a damping device with high reliability, long service life, good stability, self-drive and adjustable force sense. The damping device is easy to install, disassemble, maintain and debug.
[0005] The technical solution of the present invention is as follows: a self-driven throttle lever damping force device comprises a turbine 1, a joystick 2, a deep groove ball bearing a3, a damping force adjusting nut 4, a thrust bearing 5, a disc spring 6, a main friction disc 7, a worm 8, a secondary friction disc 9, and a deep groove ball bearing b10; the secondary friction disc 9, the main friction disc 7, the disc spring 6, the thrust bearing 5, and the joystick 2 are sequentially installed on the shaft of the turbine 1, and fastened using the damping force adjusting nut 4 to form a human-feeling damping assembly, and then the entire human-feeling damping assembly is installed on two bearings, the deep groove ball bearing a3 and the deep groove ball bearing b10.
[0006] Furthermore, each throttle lever is designed with an independent set of human-feel damping components, which are nested in the rotation center of the throttle lever.
[0007] Furthermore, the secondary friction disc 9 and the primary friction disc 7 are tightly pressed together under the action of the disc spring, and a stable damping force is generated when relative sliding occurs.
[0008] Furthermore, the worm wheel 1 and the worm 8 have a self-locking function.
[0009] Furthermore, a driving method of a self-driven throttle lever damping force device is provided. When the pilot manually operates the throttle lever, the main friction disc 7 of the human-feel damping component is driven to rotate. Under the action of the worm gear 1 and the worm 8, the secondary friction disc 9 cannot rotate, and the secondary friction disc 9 and the main friction disc 7 slide relative to each other, realizing the force feeling during the operation process, so the damping force is smooth and stable.
[0010] Furthermore, the damping force is adjusted, and the damping force adjusting nut 4 is adjusted to change the compression amount of the disc spring, thereby adjusting the pressure of the primary and secondary friction plates, thereby changing the throttle lever operating force.
[0011] Furthermore, when the throttle lever needs to be self-driven, the worm 8 is driven, and the primary and secondary friction plates do not slide relative to each other under the action of friction, thereby driving the entire throttle lever 2 to rotate.
[0012] Furthermore, during the entire driving process of the worm 8 , there is no damping force generated by the damping device, so the worm 8 only needs a very small driving force to realize the rotation of the throttle lever.
[0013] Technical effect: The demand for damping devices is mainly reflected in: 1) Small size, can be better embedded in product design, improving product stability; 2) The damping force is adjustable to suit the control requirements of different pilots; 3) Force feedback is stable and does not fluctuate with changes in the external environment; 4) Self-driven throttle lever rotation can be realized; 5) Long service life of parts, reducing the probability of disassembly and repair. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of the damping device DETAILED DESCRIPTION The present invention will be further described below with reference to the accompanying drawings: like Figure 1As shown, a self-driven throttle lever damping force device includes a turbine 1, a joystick 2, a deep groove ball bearing a3, a damping force adjusting nut 4, a thrust bearing 5, a disc spring 6, a main friction disc 7, a worm 8, an auxiliary friction disc 9, and a deep groove ball bearing b10; the auxiliary friction disc 9, the main friction disc 7, the disc spring 6, the thrust bearing 5, and the joystick 2 are sequentially installed on the shaft of the turbine 1 and fastened with the damping force adjusting nut 4 to form a human-feeling damping assembly, and then the entire human-feeling damping assembly is installed on the deep groove ball bearing a3 and the deep groove ball bearing b10.
[0015] Furthermore, each throttle lever is designed with an independent set of human-feel damping components, which are nested in the rotation center of the throttle lever.
[0016] Furthermore, the secondary friction disc 9 and the primary friction disc 7 are tightly pressed together under the action of the disc spring, and a stable damping force is generated when relative sliding occurs.
[0017] Furthermore, the worm wheel 1 and the worm 8 have a self-locking function.
[0018] Furthermore, a driving method for a self-driven throttle lever damping force device is provided. When the pilot manually operates the throttle lever, the main friction disc 7 of the human-feel damping component is driven to rotate. Under the action of the worm gear 1 and the worm 8, the secondary friction disc 9 cannot rotate, and the secondary friction disc 9 and the main friction disc 7 slide relative to each other, realizing the force feeling during the operation process. During the relative sliding process, there is no deformation and energy storage of any part, so the damping force is smooth and stable.
[0019] Furthermore, by adjusting the damping force, adjusting the damping force adjusting nut 4 can change the compression amount of the disc spring, realize pressure adjustment of the primary and secondary friction plates, and thus change the throttle lever operating force.
[0020] Furthermore, when the throttle lever needs to be self-driven, the worm 8 is driven, and the primary and secondary friction plates 7 and 9 do not slide relative to each other under the action of friction, driving the entire throttle lever 2 to rotate. During the entire driving process, there is no damping force generated by the damping device, so the worm 8 only needs a very small driving force to realize the rotation of the throttle lever.
Claims
1. A self-actuated throttle lever damping force device, characterized in that: The invention comprises a turbine (1), an operating lever (2), a deep groove ball bearing a (3), a damping force adjusting nut (4), a thrust bearing (5), a disc spring (6), a main friction disc (7), a worm (8), an auxiliary friction disc (9), and a deep groove ball bearing b (10); the auxiliary friction disc (9), the main friction disc (7), the disc spring (6), the thrust bearing (5), and the operating lever (2) are sequentially mounted on the shaft of the turbine (1), and fastened with the damping force adjusting nut (4) to form a human-feeling damping assembly, and then the entire human-feeling damping assembly is mounted on the two bearings of the deep groove ball bearing a (3) and the deep groove ball bearing b (10).
2. The self-driving throttle lever damping force device according to claim 1, characterized in that: Each throttle lever is designed with an independent set of human-feel damping components, nested in the throttle lever rotation center.
3. The self-driving throttle lever damping force device according to claim 1, characterized in that: The auxiliary friction disc (9) and the main friction disc (7) are tightly pressed together under the action of the disc spring, and a stable damping force is generated when relative sliding occurs.
4. The self-actuated throttle lever damping force device according to claim 1, characterized in that: The worm wheel (1) and the worm (8) have a self-locking function.
5. The driving method of the self-driving throttle lever damping force device according to claim 1, characterized in that: When the pilot manually operates the throttle lever, the main friction disc (7) of the human-feel damping assembly is driven to rotate. Under the action of the worm wheel (1) and the worm (8), the secondary friction disc (9) cannot rotate. The secondary friction disc (9) and the main friction disc (7) slide relative to each other, realizing the force feeling during the operation process, so the damping force is smooth and stable.
6. The driving method of the self-driving throttle lever damping force device according to claim 5, characterized in that: Adjust the damping force and the damping force adjusting nut (4) to change the compression of the disc spring, thereby adjusting the pressure of the primary and secondary friction plates and changing the throttle lever operating force.
7. The driving method of the self-driving throttle lever damping force device according to claim 5, characterized in that: When the throttle lever needs to be self-driven, the worm (8) is driven, and the primary and secondary friction discs do not slide relative to each other under the action of friction, thereby driving the entire throttle lever (2) to rotate.
8. The driving method of the self-driving throttle lever damping force device according to claim 5, characterized in that: During the entire driving process of the worm (8), there is no damping force generated by the damping device, so the worm (8) only needs a very small driving force to realize the rotation of the throttle lever.