{"title":"Experimental Analysis of Slide Throttle Valve Dynamics","authors":"L. V. Gorodilov, V. G. Kudryavtsev","doi":"10.1134/s1062739123040099","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>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 characteristics are determined. The tests included re-tuning of throttles and slide homing spring, and variation in fluid flow rate. The article presents oscillograms of the hydraulic impactor dynamics and the slide performance versus throttle parameters, fluid flow rate and the spring pre-tension. The curves of the hydraulic impactor energy, retention pressure and fluid flow rate illustrate the energy adjustability using the proposed performance control circuit. The oscillograms of the slide motion during its work cycle are plotted, the features and shortages of the process are determined. The proposed design of the throttle valve provides the steady-state performance of hydraulic impactors.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Mining Science","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1134/s1062739123040099","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MINING & MINERAL PROCESSING","Score":null,"Total":0}
引用次数: 0
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 characteristics are determined. The tests included re-tuning of throttles and slide homing spring, and variation in fluid flow rate. The article presents oscillograms of the hydraulic impactor dynamics and the slide performance versus throttle parameters, fluid flow rate and the spring pre-tension. The curves of the hydraulic impactor energy, retention pressure and fluid flow rate illustrate the energy adjustability using the proposed performance control circuit. The oscillograms of the slide motion during its work cycle are plotted, the features and shortages of the process are determined. The proposed design of the throttle valve provides the steady-state performance of hydraulic impactors.
期刊介绍：
The Journal reflects the current trends of development in fundamental and applied mining sciences. It publishes original articles on geomechanics and geoinformation science, investigation of relationships between global geodynamic processes and man-induced disasters, physical and mathematical modeling of rheological and wave processes in multiphase structural geological media, rock failure, analysis and synthesis of mechanisms, automatic machines, and robots, science of mining machines, creation of resource-saving and ecologically safe technologies of mineral mining, mine aerology and mine thermal physics, coal seam degassing, mechanisms for origination of spontaneous fires and methods for their extinction, mineral dressing, and bowel exploitation.
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