Coal falling trajectory and strength analysis of drum of shearer based on bidiectional coupling method

Coal falling trajectory and strength analysis of drum of shearer based on bidiectional coupling method | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Coal falling trajectory and strength analysis of drum of shearer based on bidiectional coupling method Meichen Zhang, Lijuan Zhao, Baisheng Shi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3865607/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 8 You are reading this latest preprint version Abstract The cutting and crushing of coal and rock containing gangue is the result of the coupling effect of multiple factors. The geometric parameters of the working mechanism, the Kinematics parameters of the shearer, and the physical and mechanical properties of the coal and rock to be cut will all affect the cutting and crushing process of the shearer. In order to study the coal falling trajectory of spiral drum cutting coal and rock, obtain its optimal cutting parameters, and achieve efficient cutting of spiral drum, a coal falling trajectory and strength analysis of drum of shearer based on bidirectional coupling technology was proposed based on particle discrete element contact theory and virtual prototype technology. The DEM-MFBD (Discrete Element Method Multi Flexible Body Dynamics) two-way coupling technology was used to realize the cutting and interactive information of the spiral drum on the complex coal seam with gangue. Construct the cutting conditions of the spiral drum under different cutting depths, rotational speeds, and traction speeds. Monitoring the movement status of coal and rock particles under different working conditions. Compile the coal falling trajectory equations of coal and rock particles under different working conditions and draw the coal falling trajectory curve. The optimal coal loading rate was used as the measurement standard for the coal falling trajectory, and the optimal coal falling trajectory of the drum was obtained through full factor experiments. Extract the load of the drum and pick, analyze their stress and deformation, and perform fatigue life analysis on the pick with the highest stress. The results indicate that the maximum deformation occurs on the cutting teeth that are cutting hard gangue. The stress of the tooth seat is mainly concentrated at the root of the tooth seat, and its maximum equivalent stress is less than the yield limit value of the selected material. Therefore, the material selection and structural design of the drum are safe and reliable. By building a coal mining machine cutting coal and rock experimental platform, monitoring the working status of the designed spiral drum, it meets the usage requirements. Based on industrial experiments conducted underground, the measured average coal loading rate of the shearer drum was 46.31%, achieving stable operation and verifying that the designed drum of shearer has efficient cutting ability. Bidirectional coupling method Drum Coal falling trajectory Strength Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 22 Feb, 2024 Reviews received at journal 05 Feb, 2024 Reviewers agreed at journal 19 Jan, 2024 Reviewers invited by journal 17 Jan, 2024 Editor assigned by journal 17 Jan, 2024 Editor invited by journal 16 Jan, 2024 Submission checks completed at journal 16 Jan, 2024 First submitted to journal 15 Jan, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3865607","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":267394911,"identity":"b6739bad-3464-4daf-8ed0-93e426e7ebb9","order_by":0,"name":"Meichen Zhang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA+0lEQVRIie2RsUpDMRSGbwgEhKNZGyrtK0QKVaHoq1y5kKmDU+nWQOFOhW4ll75Ep84nBJwu9QG6CL7A6eamEUdLLm4O+aZ/OB/5z0lRZDL/FKQPMZByTUjzCUhpOw3mm9XVSDm88a411zF0KjyAGDztsByFizpMtC3T88NNePMOxqyxWAZWv4IukNFpmmi1NRrpznDJLYbnwxFuueWq2Sda9adFfOVFKOttcLMj3FsU/DKhiKjEXT5BY/UdDjGUaQV+FNHTaGKosVvp9Y2ORxZauTY2bCtQzi+Tuwy31TvFr1ys5YoTzR8epVx6OiWUczD7t/lMJpPJ/OILnZVb6WTeKEwAAAAASUVORK5CYII=","orcid":"","institution":"Changshu Institute of Technology","correspondingAuthor":true,"prefix":"","firstName":"Meichen","middleName":"","lastName":"Zhang","suffix":""},{"id":267394912,"identity":"85a17bf0-452c-4695-bfc3-f05f39a22ccc","order_by":1,"name":"Lijuan Zhao","email":"","orcid":"","institution":"Liaoning Technical University","correspondingAuthor":false,"prefix":"","firstName":"Lijuan","middleName":"","lastName":"Zhao","suffix":""},{"id":267394915,"identity":"dc45f4bf-ddd8-4964-8dda-38db6e1f9018","order_by":2,"name":"Baisheng Shi","email":"","orcid":"","institution":"Liaoning Technical University","correspondingAuthor":false,"prefix":"","firstName":"Baisheng","middleName":"","lastName":"Shi","suffix":""}],"badges":[],"createdAt":"2024-01-15 06:44:13","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3865607/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3865607/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":49753889,"identity":"a011c4da-5059-47f4-b288-0b39e0c06720","added_by":"auto","created_at":"2024-01-17 13:40:42","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2449963,"visible":true,"origin":"","legend":"","description":"","filename":"MeichenZhangManuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3865607/v1_covered_0e6aa5cc-31ce-40c9-a0b5-521884842cf3.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Coal falling trajectory and strength analysis of drum of shearer based on bidiectional coupling method","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"Bidirectional coupling method, Drum, Coal falling trajectory, Strength","lastPublishedDoi":"10.21203/rs.3.rs-3865607/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3865607/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"The cutting and crushing of coal and rock containing gangue is the result of the coupling effect of multiple factors. The geometric parameters of the working mechanism, the Kinematics parameters of the shearer, and the physical and mechanical properties of the coal and rock to be cut will all affect the cutting and crushing process of the shearer. In order to study the coal falling trajectory of spiral drum cutting coal and rock, obtain its optimal cutting parameters, and achieve efficient cutting of spiral drum, a coal falling trajectory and strength analysis of drum of shearer based on bidirectional coupling technology was proposed based on particle discrete element contact theory and virtual prototype technology. The DEM-MFBD (Discrete Element Method Multi Flexible Body Dynamics) two-way coupling technology was used to realize the cutting and interactive information of the spiral drum on the complex coal seam with gangue. Construct the cutting conditions of the spiral drum under different cutting depths, rotational speeds, and traction speeds. Monitoring the movement status of coal and rock particles under different working conditions. Compile the coal falling trajectory equations of coal and rock particles under different working conditions and draw the coal falling trajectory curve. The optimal coal loading rate was used as the measurement standard for the coal falling trajectory, and the optimal coal falling trajectory of the drum was obtained through full factor experiments. Extract the load of the drum and pick, analyze their stress and deformation, and perform fatigue life analysis on the pick with the highest stress. The results indicate that the maximum deformation occurs on the cutting teeth that are cutting hard gangue. The stress of the tooth seat is mainly concentrated at the root of the tooth seat, and its maximum equivalent stress is less than the yield limit value of the selected material. Therefore, the material selection and structural design of the drum are safe and reliable. By building a coal mining machine cutting coal and rock experimental platform, monitoring the working status of the designed spiral drum, it meets the usage requirements. Based on industrial experiments conducted underground, the measured average coal loading rate of the shearer drum was 46.31%, achieving stable operation and verifying that the designed drum of shearer has efficient cutting ability.","manuscriptTitle":"Coal falling trajectory and strength analysis of drum of shearer based on bidiectional coupling method","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-01-17 13:32:28","doi":"10.21203/rs.3.rs-3865607/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-02-22T09:51:32+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-02-05T11:39:11+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"2e3300ca-aba8-42bf-bb20-ad906e97cfaa","date":"2024-01-20T01:02:42+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-01-18T01:05:13+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-01-18T01:02:04+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2024-01-16T06:57:22+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-01-16T06:49:59+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2024-01-15T06:37:07+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"fd78f715-6f38-42fc-9359-ed6f2f9e5441","owner":[],"postedDate":"January 17th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"under-review","subjectAreas":[],"tags":[],"updatedAt":"2024-04-21T03:12:00+00:00","versionOfRecord":[],"versionCreatedAt":"2024-01-17 13:32:28","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-3865607","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3865607","identity":"rs-3865607","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}