a cylinder
A technology of an actuating cylinder and an outer cylinder, which is applied in the directions of aircraft transmission, aircraft power transmission, aircraft power devices, etc.
Active Publication Date: 2020-02-07
CHINA AIRPLANT STRENGTH RES INST
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Problems solved by technology
[0004] Common actuators with built-in elastic claw-type mechanical locks can only be locked when the piston rod is in the state of shrinking or opening, which cannot meet the requirements of locking both positions under certain circumstances. Therefore, it is necessary to design a An actuator that can be locked and unlocked in both retracted and opened states
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[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...
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The invention relates to the field of actuator cylinder design, in particular to an actuator cylinder which can be locked both in a contracting state and an opening state. The actuator cylinder comprises an outer cylinder, a piston rod, a moving locking structure, a front-position fixing locking structure and a rear-position fixing locking structure. The piston rod is provided with a piston rod inner end and a piston rod outer end, and the piston rod inner end is arranged in the outer cylinder. A moving groove is formed in the outer wall of the part, located in the outer cylinder, of the piston rod in the circumferential direction. The piston rod can move in the axial direction of the piston rod relative to the outer cylinder. The moving locking structure is arranged in the moving groove and can move along with the piston rod. The front-position fixing locking structure and the rear-position fixing locking structure are fixedly arranged in the outer cylinder. The front-position fixinglocking structure is located on one side of the moving locking structure and is close to the outer end of the piston rod, and the rear-position fixing locking structure is located on the other side ofthe moving locking structure. The front-position fixing locking structure and the moving locking structure can be matched to be locked so that the actuator cylinder can be locked at the front position. The rear-position fixing locking structure and the moving locking structure can be matched to be locked so that the actuator cylinder can be locked at the rear position.
Description
technical field [0001] The invention relates to the technical field of actuating cylinder design, in particular to an actuating cylinder that can be locked in both retracted and opened states. Background technique [0002] As the flight speed and weight of the aircraft continue to increase, it is increasingly difficult to use manpower to manipulate the aircraft and certain components, such as retracting the landing gear, flaps, etc., so more and more hydraulic and conventional components are used on the aircraft. The action of electric drive is relatively sensitive, but when the power demand is large, a heavy electric motor is required, and the connection between the electric motor and the driven parts is also relatively complicated. Therefore, aircraft hydraulic systems are currently used to retract the landing gear, Flaps and airbrakes and other components. [0003] In the hydraulic system, the hydraulic actuator is a hydraulic element that does work to the outside world....
Claims
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IPC IPC(8): F15B15/14F15B15/26B64C13/40
CPCB64C13/40F15B15/1423F15B15/261
Inventor 孙万超李磊熊华锋沈薇
Owner CHINA AIRPLANT STRENGTH RES INST