High-frequency loading servo vibration hydraulic cylinder

A technology for vibrating hydraulic cylinders and hydraulic cylinders, which is used in fluid pressure actuation devices, fluid pressure actuation system components, mechanical equipment, etc.

Active Publication Date: 2014-01-15
TIANJIN URANUS HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]Aiming at the specific requirements of the high-frequency servo vibration cylinder, the traditional double-rod hydraulic cylinder has the following disadvantages: the contact between the piston rod and the guide is solid-solid contact, and the friction Large resistance, high starting pressure of the hydraulic cylinder, long response time, poor shock resistance, uneven guiding force when working under high gravity acceleration, increased friction, and reduced stability
Working at high frequency, the temperature of the oil will rise, and the solid-solid direct contact will cause wear and reduce the service life

Method used

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  • High-frequency loading servo vibration hydraulic cylinder

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In the accompanying drawings, the same components as those in the prior art use the same symbols. The following examples are only used to illustrate the present invention but not to limit the present invention.

[0035] figure 1 It is the front view of the high-frequency loading servo vibration hydraulic cylinder of the present invention; figure 2 It is a top view of the high-frequency loading servo vibration hydraulic cylinder of the present invention. Such as Figure 1 to Figure 2 As shown, the high-frequency loading servo vibration hydraulic cylinder of the present invention includes a cylinder barrel 24 and a cylinder head 5 connected to each other, and a piston and a piston rod 8 arranged in the cylinder barrel 24 .

[0036] Both ends of the piston rod 8 are supported by hydrostatic bearings, and the hydrostatic bearing 31 is fixed on t...

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Abstract

The invention discloses a high-frequency loading servo vibration hydraulic cylinder which comprises a cylinder barrel, a cylinder end, a piston and a piston rod, wherein the cylinder barrel is connected with the cylinder end, the piston and the piston rod are arranged in the cylinder barrel, liquid hydrostatic bearing supporting structures are adopted at the two ends of the piston rod, a hydrostatic bearing is fixed to the cylinder end and supports the piston rod, a servo valve block is arranged above the cylinder barrel and provided with two servo valves which are connected in parallel, and a displacement sensor is arranged on one side of the cylinder barrel of the hydraulic cylinder. The high-frequency loading servo vibration hydraulic cylinder has the advantages of overcoming defects of a traditional cylinder under special conditions, being little in frictional resistance, reductive in starting pressure, short in response time, good in damping prevention property and oil liquid temperature control property, stable in motion and the like.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and relates to a high-frequency loading servo vibration hydraulic cylinder. Background technique [0002] The supporting structure of the piston rod of the traditional double-rod hydraulic cylinder generally adopts copper guide or guide belt, guide ring, and the piston adopts a sealing ring. The requirements for the high-frequency servo vibrating cylinder used in the field: (1) The maximum acceleration is 30g; (2) The use frequency is 20~350Hz; (3) It works normally under the centrifugal field of 100g; (4) Seismic wave distortion (response spectrum area): 5%; ⑸ oil supply pressure 21Mpa. [0003] For the specific requirements of the high-frequency servo vibration cylinder, the traditional double-rod hydraulic cylinder has the following disadvantages: the contact between the piston rod and the guide is solid-solid contact, the frictional resistance is large, the starting pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20F15B21/02
Inventor 王建中刘兵徐海洋赵斌
Owner TIANJIN URANUS HYDRAULIC MACHINERY
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