Cushioning device for actuator
A cushioning device and actuating cylinder technology, applied in the direction of fluid pressure actuating device, etc., can solve problems such as complex curves and difficult processing, and achieve the effects of solving buffer failure, reliable work, and eliminating the risk of mechanical impact
Active Publication Date: 2016-07-13
SICHUAN LINGFENG AVIATION HYDRAULIC MACHINERY
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0012] For the parabolic buffer plunger, if the parameters of the curve are selected properly, a very approximate constant deceleration and almost constant buffer pressure can be obtained, but its use is limited due to its complex curve and difficult processing
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the scope of the described embodiments. All these concepts should be regarded as the contents disclosed in this technology and the protection scope of the present invention.
[0024] refer to figure 1 , figure 2 , image 3 . In the embodiment described below, the buffer device for the actuator includes: the piston 1 that moves in the actuator through the piston rod and the end cover that is fixedly connected to the tail end of the actuator and has a buffer orifice 4 in the radial direction 5. The buffer plunger barrel 2 is fixedly connected to the front end stepped shaft of the piston 1 . The end cap 5 is formed with an annular groove that axially moves and fits the buffer plunger barrel 2 . The buffer orifice 4 is inclined radially along the end cover 5 and communicates with the buffer cavity 3 around th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention proposes a buffer device for an actuator, comprising: a piston (1) that moves in the actuator through a piston rod and a piston (1) that is fixedly connected to the tail end of the actuator and has a buffer orifice (4) in the radial direction. The end cover (5) is formed with a buffer plunger cylinder (2) on the stepped shaft at the front end of the piston, and the end cover 5 is formed with an annular groove that axially movably fits the buffer plunger cylinder, when the buffer plunger The barrel moves to the end surface of the annular groove of the end cover, and the piston 1 contacts within a certain distance before reaching the end of the stroke to form an annular buffer chamber (3) for the sealed oil, so that the sealed oil generates an appropriate buffer pressure to act on the piston discharge. On the oil side, it opposes the inertial force of the piston, and the return oil in the annular groove is transferred to the buffer orifice and discharged from the actuator to realize buffer deceleration and braking. The invention effectively eliminates the risk of mechanical impact between the piston and the end cover, and solves the problems of mechanical damage and buffer failure when the actuator piston reaches the stroke end and decelerates to zero.
Description
technical field [0001] The present invention relates to a buffer device applied to an actuator of an aircraft hydraulic system, and more specifically, the present invention relates to a novel buffer structure that can be integrated in an actuator. Background technique [0002] When the actuators of the hydraulic transmission and control system, such as hydraulic cylinders, drag heavy parts for high-speed movement to the end of the stroke, if there is no suitable buffer device, severe pressure and blunt force shocks and vibrations often occur, causing the system The work is not stable, and harsh noises are generated at the same time, sometimes even the fasteners are loosened, the hydraulic transmission parts are damaged, and the life of the hydraulic components and the system is affected, which is very dangerous. Using the buffer device to reduce the stroke end speed of the actuator An effective way to avoid the above-mentioned ills. [0003] The impact of the hydraulic cyli...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/22
Inventor 袁洪回李焱刁志印郑红
Owner SICHUAN LINGFENG AVIATION HYDRAULIC MACHINERY