Heavy-load working condition control system of hydraulic excavator

A technology for hydraulic excavators and heavy-duty conditions, which is applied in the direction of earthmoving machines/shovels, construction, etc. It can solve the problems of incompatibility between the main pump and engine power, inability to excavate, etc., so as to solve the problem of inability to excavate and ensure Work efficiency and the effect of improving mining efficiency

Active Publication Date: 2017-09-19
XCMG EXCAVATOR MACHINERY
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a hydraulic excavator heavy-duty working condition control system to solve the problems existing in the prior art that the power of the main pump and the engin

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
  • Heavy-load working condition control system of hydraulic excavator
  • Heavy-load working condition control system of hydraulic excavator
  • Heavy-load working condition control system of hydraulic excavator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be further described below in conjunction with specific examples.

[0043] Such as Figure 1-3As shown, a hydraulic excavator heavy-duty control system includes a signal acquisition module, a signal processing module, a display module, a drive control module and an execution module. The execution module includes an electrically connected main pump and an engine, and the main pump includes a first The main pump and the second main pump, the signal acquisition module includes the electric control handle, the main pump pressure sensor and the servo control pressure sensor, the electric control handle is used to control the excavator to move and collect the handle stroke signal of the excavator operator in real time and send it to The signal processing module performs processing. The main pump pressure sensor includes a first main pump pressure sensor and a second main pump pressure sensor. The first main pump pressure sensor and the second main p...

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 heavy-load working condition control system of a hydraulic excavator. The system comprises a signal acquiring module, a signal processing module, a display module, a driving control module and an actuation module. The heavy-load working condition control system of the hydraulic excavator acquires nine handle travel signals, nine servo control pressure signals, a first main pump pressure signals and a second main pump pressure signal through the signal acquiring module I nreal time, and sends the signals to the signal processing module for power expected estimation; according to the power demands and change tendency thereof, the driving control module dynamically corrects the absorption power of main pumps; and meanwhile, working state parameters of an engine are adjusted online, so that the output power of an engine power system can satisfy the demands of the main pumps, the working efficiency of the excavator under heavy-load working conditions is guaranteed, the dynamic real-time matching between the power system output and the main pump powder demands under various-load working conditions of the excavator is realized, the excavation efficiency is improved, and the problem of powerless excavation is effectively solved.

Description

technical field [0001] The invention relates to the field of electro-hydraulic control of a hydraulic excavator, in particular to a control system for a hydraulic excavator under heavy load conditions. Background technique [0002] Excavator products are mainly used in heavy-duty operations such as mines. Since the main excavation medium for mining operations is high-density materials such as stones, which have the characteristics of heavy operating loads, the traditional excavator control method has a problem that the excavation efficiency decreases with the increase of load. Quick question. [0003] In addition, the traditional principle of power matching between the main pump and the engine is to discretely divide the output power of the excavator into multiple gears, and each gear corresponds to the corresponding power. Work with the set power parameters. However, because some operators do not predict the working conditions, but choose the middle gear through subjectiv...

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): E02F9/20
CPCE02F9/2058
Inventor 李志鹏秦家升费树辉王飞郑杨高达历娜刘洋张孝天赵振飞居世昊
Owner XCMG EXCAVATOR MACHINERY
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap