Earth-moving machinery. Hydraulic excavators. Lift capacity

2011 ◽  
Keyword(s):  
Lift Capacity ◽  
Hydraulic Excavators

Hydraulic excavators in coal-rich zones of open pit mines in Kuzbass: Experience and prospects

2019 ◽  
Vol 4 ◽  
pp. 152-160
Author(s):  
L.I. Kantovich ◽  
◽  
O.I. Litvin ◽  
A.A. Khoreshok ◽  
E.A. Tyuleneva ◽  
...  
Keyword(s):  
Open Pit ◽  
Open Pit Mines ◽  
Hydraulic Excavators

IMPROVEMENT OF THE HYDRAULIC EXCAVATOR BUCKET DESIGN

2019 ◽  
Vol 16 (3) ◽  
pp. 202-213 ◽  
Author(s):  
G. G. Buriy ◽  
V. S. Shherbakov ◽  
S. B. Skobelev ◽  
V. F. Kovalevskiy
Keyword(s):  
Cost Reduction ◽  
Production Costs ◽  
Hydraulic Excavator ◽  
Engineering Structures ◽  
Excavator Bucket ◽  
Productivity Increase ◽  
Hydraulic Excavators ◽  
Reducing Costs ◽  
Rational Operation ◽  
Resistance Forces

Introduction.Construction of engineering structures is impossible without building and road machines. The large volume of financing is allocated for such machines’ purchase. The main ways of reducing costs of the equipment consist in more rational operation of the equipment and also in decrease of equipment’s cost by constructive changes. The paper demonstrates the new design of the single-bucket hydraulic excavator with smaller cost.Materials and methods.The main ways of cost reduction for construction machines are more rational operation and depreciation of a design with the required characteristics’ maintaining. The paper describes constructive changes of the working equipment of the single-bucket hydraulic excavator, which allow decreasing the production costs.Results.The authors describe the new bucket design of the single-bucket hydraulic excavator. Moreover, the authors carry out the analysis of the existing buckets’ design. The paper also illustrates the functioning on bucket forces while digging process. The authors describe the solutions of the problem for productivity increase of the single-bucket in hydraulic excavators. In addition, the authors make the scheme of the bucket loading while digging process. Such scheme helps to reduce resistance forces of digging.Discussion and conclusions.As a result, the paper presents the design of the working equipment of the hydraulic excavator’s single-bucket, which allows reducing resistance forces of digging. Such results would help to establish buckets of bigger capacity and would lead to the productivity increase.

Characteristics Analyses of Energy Consumption for Boom Closed Circuit of Hydraulic Excavators

2012 ◽  
Vol 170-173 ◽  
pp. 3491-3494
Author(s):  
Ming Dong Chen ◽  
Ding Xuan Zhao
Keyword(s):  
Energy Consumption ◽  
Mathematical Models ◽  
Operating Conditions ◽  
Closed Circuit ◽  
Load Drop ◽  
Hydraulic Pump ◽  
Full Load ◽  
Power Characteristics ◽  
Hydraulic Excavators ◽  
Power And Energy

The boom with closed circuit in Hydraulic Excavators, which is made up of motor, hydraulic pump and accumulator, was put forward based on analysis of the operating condition of ordinary hydraulic excavators and mathematical models of system were built. Power characteristics of main power elements were obtained under typical operating conditions, and then the energy consumption characteristics were analyzed. The results show that the installed power and energy consumption will be reduced using boom with closed circuit, and no-load drop and full load rise of boom are the worst operating conditions.

Automated Grading Operation for Hydraulic Excavators

2014 ◽  
Author(s):  
Jiaqi Xu ◽  
Bradley Thompson ◽  
Hwan-Sik Yoon
Keyword(s):  
Hydraulic Excavators ◽  
Automated Grading

scholarly journals OPTIMIZATION OF WORK EQUIPMENT HYDRAULIC EXCAVATORS

2021 ◽  
pp. 3-8
Author(s):  
Pavel G. Bezkorovayny ◽  
Viktor S. Shestakov ◽  
Valeri I. Nesterov
Keyword(s):  
Hydraulic Excavators
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