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Request PDF | Design and Simulation of Hydraulic Braking System for Loader Based on AMESim | The loader develops towards the direction of heavy haul and high speed intellectualization, and puts ...

The combination of the hydraulic impactor and positive displacement motor (PDM) is becoming more and more popular in drilling engineering. However, the negatives of the PDM on the impactor cannot be ignored. To improve the performance of the technique, the influence of fluid pulsation from the PDM on the hydraulic impactor was …

This paper introduces a type of intelligent hydraulic impactor control system based on fuzzy control method, gives the fuzzy control strategy of intelligent hydraulic impactor including fuzzy controller frame, input, output and fuzzifying, anti-fuzzifying, fuzzy control method. In order to validate the correctness of the fuzzy control strategy for …

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The significance and methods of improving drilling rate are discussed.Several kinds of hydraulic impactors and the latest research progress are introduced in the paper.Depending on the direction of the impact force,the hydraulic impactors can be divided into categories,which are axial impactor and torsion impactor.According to the …

Limited by the influence of the traditional clearance seal structure on the leakage and friction loss of piston pair, the energy utilization ratio of the hydraulic impactor is difficult to improve effectively. To solve this problem, a novel micro-texture clearance seal structure of impact piston cylinder was proposed, and an integrated energy consumption …

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A new type valveless hydraulic impactor was proposed,which was put into roofbolter,and its structure,operational pinciples and characteristics were analyzed.The mathematical models of each process were established respectively.Modeling and simulation with AMESim.Analyse change of piston velocity and displacement on basis of simulation …

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Abstract The authors analyze the control circuit of the work process-related parameters of a hydraulic impactor with the piston retention before the back stroke phase. Retention is implemented via the throttle control of pressure in the hydraulic cell of the slide valve. The physical model of such hydraulic impactor is tested, and its energy …

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The paper analyzes the working principle of hydraulic impactor, describes the return and stroke order of action and establishes the nonlinear mathematical model describing its dynamic characteristic.

By impact experiments on objects of different hardness, it's proved that the intelligent hydraulic impact or controlled by fuzzy control algorithm can automatically regulate the impact frequency and impact energy. A kind of intelligent hydraulic impact or based on fuzzy control algorithm is put forward. The pressure peak signal from the …

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Improvement of manufacture quality of the impactor parts, reduction of the cylinder–piston clearances, and overall optimization of the design parameters of the hydraulic impact tools can reduces fluid leakage and increase the impact frequency and capacity of the tool at the same fluid flow pressure.

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Abstract. A kind of intelligent hydraulic impactor is put forward, including its operating principle and the method to design the hydraulic control system, the hardware and software modules of the ...