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the working principle of excavator energy storage device
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Supercapacitor is one type of ECs, which belongs to common electrochemical energy storage devices. According to the different principles of energy storage,Supercapacitors are of three types [9], [12], [13], [14], [15].One type stores energy physically and is ...
Load Law Analysis and Fatigue Life Prediction for Bucket Teeth of Excavator Working Device …
The increasing demand for major infrastructure construction and large open-pit coal mines in China has driven the rapid development of large mining excavator. At present, the research is not completely figured out the change law of the external load and the degradation law of the working performance of the working device of the mining excavator during …
Control strategy of a novel energy recovery system for parallel …
The aim of this article is to propose a control strategy for energy recovery system of hydraulic excavator driven by the parallel hybrid system. The mathematical …
Energies | Free Full-Text | A Novel Energy Recovery System Integrating Flywheel and Flow Regeneration for a Hydraulic Excavator …
Implementing an energy recovery system (ERS) is an effective solution to improve energy efficiency for hydraulic excavators (HEs). A flywheel energy recovery system (FERS) is proposed based on this concept. A hydraulic pump motor (PM) is employed as the energy conversion component and a flywheel is used as the energy …
Energies | Free Full-Text | Design and Research on Electro …
In current pure electric-hydraulic excavators, the main power source is the battery, and the working device of the load is the hydraulic system. How to make full use …
Research on energy saving system of hydraulic excavator based …
Based on the result 1.84/1.2842 = 1.4328, it can be concluded that the energy storage density of the TCA is 1.4328 times higher than that of conventional accumulators. This implies that the energy storage density has increased by 43.28 %. 3. Design of energy
The Working Principle of Hydraulic Pumps in Excavators
The liquid continuously circulates in the system to meet the hydraulic energy requirements of various parts of the excavator. The working principle of hydraulic pumps is based on the incompressible nature of liquids, which can transmit force and create high pressure in the hydraulic system. Hydraulic pumps play a crucial role in construction ...
Energy recovery and utilization system of excavator boom based …
The structure and working principle of the asymmetric pump controlled single rod cylinder system are studied in depth in this paper. To better demonstrate the performance of the proposed system ...
Back to Basics: Accumulators | Power & Motion
The Basics. A hydraulic accumulator is a pressure vessel containing a membrane or piston that confines and compresses an inert gas (typically nitrogen). Hydraulic fluid is held on other side of the membrane. An accumulator in a hydraulic device stores hydraulic energy much like a car battery stores electrical energy.
High Energy Efficiency Driving of the Hydraulic Excavator Boom …
The 11th International Fluid Power Conference, 11. IFK, March 19-21, 2018, Aachen, Germany S i1 S j1 S i2 S j2 S i 3 S j3 4 S j4 S i5 S j5 A B D C (a) Working principle A B D R 1 R 2 S i1 S j1 S i2 S j2 S S i3 j3 S i4 j4 S i5 S j5 C (b) Photograph of the valve plate
Structure and working principle of excavators
The first excavator was invented by Mr. William Smith Otis in the United States in 1837, which was powered by the steam at that time. The first swing mechanical excavator was invented in 1895, a milestone in the excavators history. The first hydraulic excavator was created in 1960s, in Germany, than it was introduced to Japan and other …
High Energy Efficiency Driving of the Hydraulic Excavator Boom …
This paper aims to improve the energy efficiency of the hydraulic excavator by reducing throttling loss and regenerating potential energy directly based on a novel pump …
A review of developments in energy storage systems for hybrid …
Hybrid technology applied to vehicles and construction machineries is one of the promising technologies to address environmental challenges. The energy storage …
Design, Modeling and Analysis of a PEM Fuel Cell Excavator with …
energy efficiency, limited working torque and speed range, noise and a lot of emissions . Thus, ICE type excavator has been recently replaced by the hybrid type5-14). Hydraulic hybrids excavators ...
Design, Modeling and Analysis of a PEM Fuel Cell Excavator with …
This paper proposed a novel design of the PEM fuel cell excavator with supercapacitor/battery hybrid power source as a method to improve excavator efficiency and cut down to zero the greenhouse emission. The dynamic model of PEM fuel cell, supercapacitor and battery is presented and discussed. The hydraulic model of the …
A Multi-Objective Collaborative Optimization Method for the Excavator Working Device to Support Energy …
To address the limitation of existing excavator optimization methods, which primarily focus on the force performance while neglecting energy consumption and fail to realize environmentally friendly and low-carbon designs, this paper proposes a new multi-objective collaborative optimization method for an excavator to reduce energy …
Flywheel Energy Storage | Working & Applications
A flywheel energy storage can have energy fed in the rotational mass of a flywheel, store it as kinetic energy, and release out upon demand. They work by spinning up a heavy disk or rotor to high …
Advanced Energy Storage Devices: Basic Principles, Analytical …
2 Principle of Energy Storage in ECs EC devices have attracted considerable interest over recent decades due to their fast charge–discharge rate and long life span. 18, 19 Compared to other energy storage devices, for example, batteries, ECs have higher power2
Developments in energy regeneration technologies for hydraulic excavators…
To verify the effectiveness of this system, a real test bench based on a 6-ton hydraulic excavator was performed. The experimental results showed that 50.1% energy consumption of the boom and 64.9% peak power of the power source can be reduced in the proposed system compared with the double-chamber system.
A review of energy storage types, applications and recent …
Most energy storage technologies are considered, including electrochemical and battery energy storage, thermal energy storage, thermochemical energy storage, flywheel energy storage, compressed air energy storage, pumped energy storage, magnetic energy storage, chemical and hydrogen energy storage. …
Optimal Energy Management of the Electric Excavator Using …
Super capacitors are energy storage devices that have the advantages of rapid charging, a high charge, an efficient discharge and a semi-permanent cycle life. In this study, a simulation of the optimal management was performed by applying a super capacitor with these characteristics to the energy regeneration system of an electric excavator.
Research on potential energy recycling system of a new hydraulic excavator …
This paper proposed a new potential energy recycling system based on the boom cylinder-accumulator balance to improve energy saving of a hydraulic excavator.The working principle of the system with a medium-sized excavator was analyzed and the system simulation model was established in AMEsim and Adams environment.Simulation …
Design and Research on Electro-Hydraulic Drive and Energy Recovery System of the Electric Excavator …
the working device of the load is the hydraulic system. How to make full use of the advantages of electric energy storage and hydraulic energy storage, and give full play to battery and ...
Reducing-resistance mechanism of vibratory excavation of hydraulic excavator …
Based on the working principle of vibratory excavation of hydraulic excavator, the expression of digging resistance changed with time under sine wave inspiritment was deduced; a comparison analysis was given after calculating the forces status of rock and soil under static load and vibratory load respectively by using MATLAB; …
The gravitational potential energy regeneration system with closed-circuit of boom of hydraulic excavator …
As a type of hydraulic energy storage device, an accumulator is also used as the hydraulic counterbalance of the boom to balance the gravity of the working device [28].
Position control strategy of the closed loop using PID. | Download …
When the energy storage hydraulic cylinder [10,11] or energy storage chamber [12][13][14] is used to recover the gravitational potential energy, the gravity of the working device can also be ...
Energy and Operation Characteristics of Electric Excavator With …
In the existing electric excavators, the energy efficiency of the hydraulic system is less than 30% due to a large amount of throttling loss and waste of potential energy. In order to improve excavator energy efficiency, an electric excavator scheme using a hydraulic-electric dual-power drive boom system is proposed. A linear actuator, …
Modal analysis of hydraulic excavator working device based on …
For the sake of analyze the dynamic characteristics of the working device of the hydraulic excavator, a three-dimensional model of the working device of a certain type of hydraulic excavator is established, and its four typical working conditions are determined. The finite element model of the working device is established, and the first …
A review of developments in energy storage systems for hybrid …
To save energy and reduce emissions in excavators and other construction machineries, hybrid power technology is quite promising. The ESS (Energy Storage …
Potential energy directly conversion and utilization methods used for heavy duty lifting machinery …
During the boom lifting process, the stored energy can be reused through the energy storage hydraulic cylinder to drive the working device directly. Around 43.9% of the total required energy for lifting operation is supplied by the recovered energy.
The gravitational potential energy regeneration system with closed-circuit of boom of hydraulic excavator …
Therefore, it will reduce the energy conversion link between the hydraulic energy and the electric energy, in comparison to the energy storage element of electric energy [15]. In order to achieve the volumetric speed control of the hydraulic system in this paper, the fuzzy PI self-tuning controller is developed to adjust the PMBLDC motor speed.
The Working Hydraulics of Valve-Controlled Mobile Machines: Classification and Review …
This review paper closes this gap by analyzing and classifying the working hydraulics of nonhybrid, ... Energy Consumption of an LS Excavator Hydraulic System," ASME Paper No. IMECE2007-42267. 10.1115/IMECE2007-42267 51. …
Design and Research on Electro-Hydraulic Drive and Energy …
the main power source is the battery, and the working device of the load is the hydraulic system. How to make full use of the advantages of electric energy …
Energy Efficiency of Excavator Boom Cooperative Controlled by …
In order to meet the development requirement of excavator electrification, a principle of open circuit volume and energy storage balance technology to cooperative control the …
Research on Energy Saving Characteristics of Large Hydraulic …
Aiming at the large hydraulic excavator of which the boom is driven by dual hydraulic cylinders, the principle of double hydraulic-gas energy storage cylinders driving the …
Optimal design of a hydraulic excavator working …
The working device is the most important component of an excavator. It directly determines the longevity, stability, and economy of an excavator. With the Denavit–Hartenberg convention and the virtual …
Energy recovery and utilization system of excavator boom based …
To meet the tighter emission standard of the diesel engine and save energy, various energy recovery and utilization systems (ERUSs) of excavator boom began to be applied. In this paper, a new ERUS of excavator boom was proposed and designed for a 20-ton traditional excavator (TE) based on flow regeneration and balance …
(PDF) Excavator Energy-saving Efficiency Based on Diesel Engine Cylinder Deactivation Technology …
At present, the main technologies for hydraulic excavator. energy -saving are as follows: (1) Constant power c ontrol. This system c an make full use of engine power wit hout. causing diesel ...
Research on Energy Saving Characteristics of Large Hydraulic Excavator Boom Driven by Dual Hydraulic-gas Energy Storage …
The self-weight of working device is balanced by the initial hydraulic pressure of the hydraulic accumulator, and the gravitational potential energy is directly recuperated. Firstly, the parameters of three-chamber hydraulic cylinders and the hydraulic accumulator are designed according to the operation characteristics of 36 tons large hydraulic excavator …
Energy and Operation Characteristics of Electric Excavator With …
Received 26 July 2023, accepted 7 September 2023, date of publication 11 September 2023, date of current version 4 October 2023. Digital Object Identifier 10.1109/ACCESS.2023.3314338 Energy and Operation Characteristics of Electric Excavator With Innovative
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