Novel digital hydraulic servo cylinder

A digital hydraulic and servo cylinder technology, applied in the field of new digital hydraulic servo cylinders, can solve the problems of large volume and length of servo hydraulic cylinders or digital hydraulic cylinders, unsuitable for equipment renovation and upgrading, inconvenient use and maintenance, etc. Simple structure and convenient networking effect

Pending Publication Date: 2018-07-24
AEMETEC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this large-scale closed-loop servo control system is fast and accurate in position control and speed control, it has the defects of complex system structure and inconvenient use and maintenance.
[0003] In this regard, in recent years, a servo hydraulic cylinder or digital hydraulic cylinder that integrates proportional valves, servo valves or dig

Method used

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  • Novel digital hydraulic servo cylinder

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Embodiment Construction

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make those skilled in the art understand the disclosure content of the present invention more thoroughly and comprehensively.

[0031] Such as figure 1 As shown, the novel digital hydraulic servo cylinder of the present invention includes a front end cover 1, a cylinder body 2, a piston rod 3, a screw rod 4, a spool 5, a seal 6, a rear end cover 7, a motor seat 8 and a motor 9.

[0032] Wherein, the cylinder body 2 is hollow and has a chamber; the center of the front end cover 1 and the rear end cover 7 is provided with a central hole; t...

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Abstract

The invention provides a novel digital hydraulic servo cylinder. The novel digital hydraulic servo cylinder comprises a front end cover, a cylinder body, a piston rod, a screw rod, a slide valve core,sealing parts, a rear end cover, a motor seat and a motor, wherein the cylinder body is hollow and is provided with a cavity, the front end cover and the rear end cover are provided with center holescorrespondingly, the piston rod comprises a piston rod body and a piston head, the diameter of the piston rod body is slightly less than that of the center hole of the front end cover, the diameter of the piston head is slightly less than that of the cavity of the cylinder body, an inner hole of the slide valve core is machined with threads, the threads are matched with the screw rod to form a screw pair, an internal through hole of the screw rod communicates with an oil box through an oil return hole, the motor seat is fixed to the rear end cover, and the motor is installed to the motor seat. By means of the novel digital hydraulic servo cylinder, speed control and position control of a traditional complex hydraulic servo cylinder are changed into the simple minitype digital motor control, the one-to-one correspondence between digital pulse frequency and oil cylinder speed and the one-to-one correspondence between digital pulse total amount and cylinder stroke are realized, and the structure of the servo hydraulic cylinder is greatly simplified.

Description

technical field [0001] The invention relates to a novel digital hydraulic servo cylinder. Background technique [0002] In hydraulic transmission, it is often necessary to precisely control the speed and position of the cylinder. The traditional method is to use servo valves or proportional valves, sensors built into the cylinder, and a computer control system for high-speed sampling and calculation, through complex control algorithms and strategies. Realize the precise speed control and position control of the oil cylinder. Although this large-scale closed-loop servo control system is fast and accurate in position control and speed control, it has the defects of complex system structure and inconvenient use and maintenance. [0003] In this regard, in recent years, a servo hydraulic cylinder or digital hydraulic cylinder that integrates proportional valves, servo valves or digital valves on the cylinder has been developed. However, since both valves and sensors need to occ...

Claims

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Application Information

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IPC IPC(8): F15B13/16F15B13/044F15B15/14F15B15/20
CPCF15B13/0444F15B13/16F15B15/1423F15B15/20F15B2211/7051F15B2015/206F15B2015/1495
Inventor 杨世祥杨涛李桂英杨帆
Owner AEMETEC
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