Design method of a variable pressure oil supply type anti-eccentric load horizontal servo cylinder
A design method and technology for servo cylinders, applied in the field of servo hydraulics, can solve the problems of eccentric friction between the piston and the cylinder, affecting the output characteristics and reliability of the servo cylinder, so as to prolong the reliability and life, increase the bearing capacity and anti-bias. The effect of load capacity
Active Publication Date: 2016-07-06
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology
In practical applications, due to installation, load force characteristics or other reasons, there will be a certain radial force on the piston rod, which will cause partial friction between the piston rod and the guide sleeve, the piston and the cylinder, which will seriously affect the output characteristics and reliability of the servo cylinder. sex
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[0018] The present invention will be described in detail below with reference to the accompanying drawings.
[0019] like figure 1 As shown, the horizontal servo oil cylinder of the present invention includes a cylinder block 2 and a piston rod 1, and one or more pairs of oil pads with asymmetric upper and lower sides are arranged on the cylinder guide sleeve along the axis direction, wherein the oil pad on the lower side of the piston rod 1 is a support The oil pad 10 and the supporting oil pad 10 are composed of an oil cavity, a central oil inlet hole, an oil sealing edge and a supporting oil return groove 11 . The oil pad on the upper side of the piston rod 1 is a support-reaction oil pad 5 , and the support-reaction oil pad 5 is composed of an oil cavity, a central oil inlet hole, an oil sealing edge, and a support-reaction oil return groove 4 . Pressure oil is simultaneously fed into each oil pad from an independent oil supply system. The oil supply system includes an o...
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The invention discloses a pressure-variable oil-supply-type load-deflection-resistant horizontal servo oil cylinder design method. A horizontal servo oil cylinder comprises a cylinder body and a piston rod, wherein a cylinder guide sleeve is provided with oil pads (5,10) which are in up-down asymmetry along the axis direction; the oil pad at the lower side of the piston rod (1) is a support oil pad; the oil pad at the upper side of the piston rod (1) is a counterforce-support oil pad (5); an independent oil supply system is used for supplying pressure oil to the oil pad at the same time, and the pressure of the pressure oil supplied by the oil supply system is controlled by a proportional overflow valve. By virtue of applying the support oil pad and the counterforce-support oil pad and utilizing the independent oil supply system to supply pressure oil to the oil pads, the bearing capacity and load-deflection-resistant capacity of the system are enhanced, the reliability of the horizontal servo oil cylinder is greatly enhanced and the service life of the horizontal servo oil cylinder is greatly prolonged.
Description
technical field [0001] The invention belongs to the field of servo hydraulics, and in particular relates to a design method of a variable pressure oil supply type anti-eccentric load horizontal servo oil cylinder, which is suitable for large metallurgical equipment under severe working conditions such as high and low speed, high frequency, heavy load and bearing radial force. and other industries. Background technique [0002] Servo cylinder is the actuator of hydraulic servo system to achieve high-precision and high-response control. The performance of the servo cylinder directly affects the control accuracy and dynamic and static quality of the system, so the design of the servo cylinder needs to have excellent guiding performance, low friction, no leakage, no creep, no stagnation, small inertia, high response, Long life and other advantages can better meet the requirements of the static accuracy and dynamic quality of the servo system. Generally, the force state of the ...
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IPC IPC(8): F15B15/20F15B21/04
CPCF15B15/20F15B21/041
Inventor 黄庆学安高成马丽楠张其生王君
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY