Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Slide valve type symmetric cylinder bidirectional hydraulic balance system

A balance system and two-way hydraulic technology, which is applied in the field of hydraulic balance system and spool type hydraulic balance valve, can solve the problems of large throttling loss, difficulty in ensuring the accuracy and stability of system control, etc., and achieve small pressure loss, The oil cleanliness and temperature change are not high, and the effect of convenient installation

Inactive Publication Date: 2017-08-25
上海卡威机械技术有限公司
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is necessary to accurately control the position or speed of the hydraulic system under negative load conditions, the performance requirements for the balance valve are very high, and it is difficult to ensure the accuracy and stability of the system control in many cases
And once the back pressure is increased in the system, even when there is no negative load, there will still be throttling, and the resulting throttling loss will be relatively large

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Slide valve type symmetric cylinder bidirectional hydraulic balance system
  • Slide valve type symmetric cylinder bidirectional hydraulic balance system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The design concept of the present invention is illustrated below through a schematic diagram.

[0021] like figure 1 Shown is the schematic diagram of the structure of the slide valve balance valve, which is mainly composed of the valve body, the valve core and the connecting oil passage. 1 is the top oil port, 2 is the end spring, 3 is the valve body, 4 is the internal oil passage in the piston, and 5 is the upper sinking groove. 6 is a slide valve spool, which is designed to be connected by two pistons (the upper piston 13 and the lower piston 9). The spool 6 cooperates with the valve hole inside the valve body and can slide in the valve hole, but prevents the hydraulic oil Flow along the fit gap. The two ends of the spool 6 can be equipped with weaker end springs 2 as required, or springs can be arranged at one end alone. 7 is the sinking cutting groove, 8 is the bottom oil port, 9 is the lower piston of the valve core, 10 is the lower oil passage, which communica...

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

No PUM Login to View More

Abstract

The invention discloses a slide valve type symmetric cylinder bidirectional hydraulic balance system and a hydraulic balance system. The hydraulic balance system is based on balance valves and is suitable for a double-acting symmetric cylinder with the negative load condition. The slide valve type symmetric cylinder bidirectional hydraulic balance system and the hydraulic balance system aim at solving the influence of the negative load condition possibly occurring in a hydraulic control system on a hydraulic system. The slide valve type symmetric cylinder bidirectional hydraulic balance system comprises the specially designed slide valve element type balance valves, and the balance valves are composed of valve bodies, slide valve elements, oil channels and the like and can be used pairwise. The system is effective on negative loads possibly appearing in two directions, and a bidirectional locking function or an oil cylinder floating function is achieved. According to the novel hydraulic balance system, when no negative load appears, throttling losses are very small. The designed balance valves and balance system are very simple in structure, very low in manufacturing cost and good in reliability, and are not sensitive to oil liquid temperature and cleanliness, and the balance performance and system safety of the hydraulic control system can be effectively guaranteed.

Description

technical field [0001] The invention belongs to the field of hydraulic control components and systems, and relates to a slide valve spool type hydraulic balance valve and a two-way hydraulic balance system, more precisely, relates to a specially designed slide valve spool type hydraulic balance valve, And based on this balance valve, it is suitable for a hydraulic balance system in which a double-acting symmetrical cylinder has a negative load in both directions. [0002] technical background [0003] Hydraulic technology is a transmission and control technology that is widely used in modern industrial technology. It has many advantages such as high power density and fast system response. In practical applications, the system often has a so-called "negative load", that is, the force of the load drives the movement of the hydraulic cylinder (or motor). For example, in the process of lifting the heavy object upwards by the oil cylinder, the oil cylinder moves upward against th...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/04F15B15/20
CPCF15B13/0402F15B15/20F15B2211/7054F15B2211/761
Inventor 王林飞王林翔
Owner 上海卡威机械技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com