Cushioning structure optimization of excavator arm cylinder

Cushioning structure optimization of excavator arm cylinder

Dynamic modeling and simulation of impact in hydraulic

Dec 28, 2020 · Cushioning structure optimization of excavator arm cylinder. Autom Constr 2015; 53: 120 – 130. Google Scholar | Crossref. 10. Schwartz, C, Negri, VJ, Climaco, JV. Modeling and analysis of an auto-adjustable stroke end cushioning device for hydraulic cylinders.

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Design and Shape Optimization of Excavator Bucket

radial tooth force due to arm cylinder FS. Maximum tooth force due to arm cylinder is the digging force generated by the arm cylinder and tangent to arc of radius dF. Where, dF is the sum of bucket tip radius (dD) and the arm link length in mm, and DA is the end diameter of the arm cylinder in mm. When the assembly of proposed 3D model

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Multi-objective optimization and simulation of novel

Jan 04, 2021 · Hydraulic excavator is a kind of typical engineering equipment to be widely used in engineering constructions and mining operations (Ge et al. 2019).Due to the high efficiency and large carrying capacity, more users choose face-shovel hydraulic excavator (Zu et al. 2020).In the mining industry, the excavator is required to have strong digging power to load broken rock …

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10.1016/j.autcon.2015.03.012 | DeepDyve

hydraulic cylinders, a bucket and boom which is on the upper part of the arm. The arm moves in two parts just like a human arm would be at the wrist and the elbow. 2. CYLINDER ROD: Inside of the hydraulic cylinder and a Piston, which is at the end of the cylinder and enables the arm to move with the help of oil.

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Hitachi EX1200-7 Mining Excavator - Arnold Machinery Company

The automatic weight-adjusting air suspension seat determines the optimal cushioning effect to match the operator's weight, enhancing comfort and minimizing vibration. The cab rests on 6-point, support type, fluid-filled elastic mounts. These significantly reduce shocks and vibration for operator comfort and improve cab durability.

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EX5600-6 EX5600 - Excavators, Mining Haul Trucks & Foresters

Hydraulic Cylinders High-strength piston rods and tubes adopted. Cylinder cushion mechanisms are provided for boom, arm, bucket and dump cylinders. Bucket cylinders of loading shovel are provided with protector. ILLUSTRATIONS SHOW DIESEL ENGINE MACHINE 10 080 mm (33 ft. 1 in.) 9350 mm (30 ft. 8 in.) 7400 mm (24 ft. 3 in.) 1400 mm (4 ft. 7 in

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EX-7 series

The control of both the arm and boom is achieved through a Hitachi proprietary leveling cylinder mechanism, using just one arm lever. This means the bucket can automatically be pushed out horizontally using a single movement. Potential energy created from the front weight is recycled as level cylinder thrust and added to the arm digging power.

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Reliability Analysis of the Hydro-System of Excavator

In this paper is given the use Weibull distribution (WD) as theoretical reliability model for analysis of the hydro-system of excavator SchRs 800, which is accepted on the basis of Pearson (χ2), Kolmogorov-Smirnov (KS) and Cramér-von Mises (CvM)

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Cushioning structure optimization of excavator arm cylinder

Abstract. Severe impact and vibration may appear when a high-pressure cylinder is working. So in order to slow down the piston and prevent the damage to the cylinder, cushioning structures located in the end or head of a high-pressure cylinder should be optimized. In this work, the working principle of arm cylinder cushioning structures was analyzed, and multi-domain …

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Cushioning structure optimization of excavator arm cylinder

7 rows · May 01, 2015 · In this work, the working principle of arm cylinder cushioning structures was analyzed, and

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Energy-saving analysis in the hydraulic system of loader

Cushioning structure optimization of excavator arm cylinder. Xun Chen, F. Chen, J. Zhou, Lihong Li, Yanliang Zhang; Engineering; 2015; 13. Save. Alert. Research Feed. References. SHOWING 1-10 OF 26 REFERENCES. SORT BY. Research on the energy-saving potentiality of electro-hydraulic Power Steering System based on energy flow

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'Investigation and analysis of hydraulic cylinder

Cushioning is an important aspect in hydraulic cylinder performance. The piston has to be decelerated before it strikes the end cap in order to avoid stresses in …

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Simulation of Hydraulic Cylinder Cushioning

Structure Optimization of Excavator Bucket Mechanism Based on ADAMS cylinder fully shrinks, tooth tip is required in the extending line of arm or at the top of the arm in 0°to 30°. Additionally, in order to meet the needs of special Moment …

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Modeling and Analysis on Cushion Characteristics of Fast

Aug 21, 2016 · The cushion characteristics of hydraulic cylinder directly affect its performance and reliability, especially the one utilized in hydraulic system with fast response, high flow rate, and instantaneous super power. J. Zhou, L. Li, and Y. Zhang, "Cushioning structure optimization of excavator arm cylinder," Automation in Construction, vol

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Simulation of Hydraulic Cylinder Cushioning

Jul 01, 2021 · The objective of cushioning of a linear hydraulic cylinder is the gradual reduction of the velocity at the end of the stroke, in order to preserve the structural integrity and to avoid undesirable motion of the displaced load.

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Design And Analysis Of An Excavator - IJERT

The objective of cushioning of a linear hydraulic cylinder is the gradual reduction of the velocity at the end of the stroke, in order to preserve the structural integrity and to avoid undesirable motion of the displaced load. Ideally, a constant reduction of the velocity is desired.

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Simulation of Hydraulic Cylinder Cushioning

Nov 29, 2020 · The internal cushioning systems of hydraulic linear actuators avoid mechanical shocks at the end of their stroke. The design where the piston with perimeter grooves regulates the flow by standing in front of the outlet port has been investigated. First, a bond graph dynamic model has been developed, including the flow throughout the internal cushion design, …

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PC1250LC-11 MH mid-size hydraulic excavator | Komatsu

For material handling jobs that require high lift and plenty of power, the PC1250LC-11 MH is designed to get the job done. An elevated cab, with tiltable structure for service access, gives this machine incredible operating range. Improved over-the-side lift capacity and stability of a base machine. Versatility with longer booms and arms options.

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Modeling and Analysis on Cushion Characteristics of Fast

Jan 01, 2016 · Optimal scheme of cushion structure can lower about 50% of the peak pressure and final velocity. L. Li, and Y. Zhang, "Cushioning structure optimization of excavator arm cylinder," Automation in Construction, vol. 53, pp. 120-130, 2015.

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2021 HITACHI EX5600-7 - New Mining Excavator & Shovels

The EX5600-7 is a world-class mining excavator that will help you work more efficiently. The powerful machine features the latest advancements in engine and fuel optimization technologies to provide you with efficiency, reliability and durability in the toughest mines. You get strong horsepower, reduced fuel consumption through engine selection

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