Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Energy-saving oil cylinder, energy-saving hydraulic system and engineering machine

A technology of hydraulic system and oil cylinder, applied in the field of construction machinery, can solve problems such as heat energy loss and energy waste

Pending Publication Date: 2019-11-15
SANY MARINE HEAVY IND
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, for construction machinery with booms such as excavators and grabbers, the rise and fall of the boom are generally controlled by oil cylinders. In the project where the boom is lowered, the gravitational potential energy of the boom will be converted into heat energy loss, resulting in energy loss. waste

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
  • Energy-saving oil cylinder, energy-saving hydraulic system and engineering machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0030] Such as figure 1 As shown, one aspect of the present application provides an energy-saving oil cylinder, including: a cylinder body 14, and a first piston rod 6 and a first piston 10 connected to each other, the cylinder body 14 has a working chamber, and the first piston 10 is arranged in the working chamber In order to divide the working chamber into the first rod chamber 5 and the first rodless chamber 3, both the first rod chamber 5 and the first rodless chamber 3 are sealed chambers and are used to connec...

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 relates to the technical field of engineering machines, in particular to an energy-saving oil cylinder, an energy-saving hydraulic system and an engineering machine. A first piston is arranged in an acting cavity to divide the acting cavity into a first rod cavity and a first rodless cavity, wherein the first rod cavity and the first rodless cavity are both sealed cavities and are both used for being connected with an oil pump; an energy accumulator, and a second piston rod and a second piston which are connected with each other are further included, and the second piston rod isconnected with a first piston rod; and a cylinder body is further provided with an energy storage cavity, the second piston is arranged in the energy storage cavity to divide the energy storage cavityinto a second rod cavity and a second rodless cavity, the second rod cavity communicates with the first rod cavity, and the second rodless cavity communicates with the energy accumulator so as to store energy when the first piston moves towards the first rodless cavity. According to the energy-saving oil cylinder, the energy-saving hydraulic system and the engineering machine, the technical difficulty that waste caused by the fact that the gravitational potential energy of a movable arm is completely converted into heat energy in the descending process of the movable arm can be avoided.

Description

technical field [0001] The application relates to the technical field of construction machinery, and in particular to an energy-saving oil cylinder, an energy-saving hydraulic system and construction machinery. Background technique [0002] At present, for construction machinery with booms such as excavators and grabbers, the rise and fall of the boom are generally controlled by oil cylinders. In the project where the boom is lowered, the gravitational potential energy of the boom will be converted into heat energy loss, resulting in energy loss. waste. Contents of the invention [0003] The purpose of this application is to provide an energy-saving oil cylinder, an energy-saving hydraulic system and construction machinery, so as to avoid the technical difficulty that all the gravitational potential energy of the boom is converted into heat energy during the lowering process of the boom, causing waste. [0004] In order to achieve the above object, the application adopts ...

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
IPC IPC(8): F15B15/14F15B15/20F15B21/14F15B1/02F15B11/16
CPCF15B1/02F15B11/16F15B15/1423F15B15/1447F15B15/1457F15B21/14F15B2215/30
Inventor 杨浪史超平吴冠宇
Owner SANY MARINE HEAVY IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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