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<\/figure>\n\n\n\nMotor Chain Tensioner Hydraulic Control Valve Block: Safeguarding Heavy-Duty Operations for Coal Mine Scraper Conveyors<\/p>\n\n\n\n
At the fully mechanized coal mining face, the scraper conveyor is the core equipment ensuring efficient coal evacuation. Due to high-intensity, continuous heavy-duty operation, the scraper chain is highly prone to stretching and slackening. If not tensioned in a timely manner, it can lead to serious accidents such as chain skipping, derailment, or even chain breakage. Therefore, the hydraulic chain tensioner has become an essential safety tensioning device.<\/p>\n\n\n\n
Mechanically, the motor chain tensioning device is typically installed on the connecting housing between the electric motor and the reducer within the scraper conveyor’s drive unit. A large gear designated for chain tensioning is mounted on the input shaft (first shaft) of the reducer. During tensioning, the hydraulic motor drives the input gear, which transmits torque by meshing with the large tensioning gear via an idler gear. This torque is then transmitted to the reducer’s input shaft, ultimately driving the sprocket to rotate in reverse. This action causes the conveyor chain to move backward slowly until the standard tensioned state is achieved.<\/p>\n\n\n\n
The core function of this valve block is to drive the forward and reverse rotation of the motor and provide absolutely reliable braking control for it.<\/p>\n\n\n\n
In-house Manufacturing and Rigorous Testing:<\/strong> The programs exported from LIVE MANIFOLD are fed directly into our CNC machining centers. From the cutting of metal blanks to the forming of precision cartridge valve cavities, we do not rely on external outsourcing, ensuring the entire manufacturing process is independently controllable. More importantly, before leaving the factory, every chain tensioner valve block must undergo real-condition pressure testing, braking\/locking tests, and directional switching tests on our in-house test benches to ensure all performance indicators fully meet the standards.<\/p>\n\n\n\n Massive Inventory Supporting Batch Delivery:<\/strong> As an experienced system integrator for top-tier brands like SUN and HYDRAFORCE, we maintain a massive in-stock inventory of cartridge valves and multi-way valves year-round. Combined with our standardized management, whether for single-piece customization or batch replacement, we can bypass lengthy component procurement periods to provide you with the most rapid, “turnkey” level finished product delivery.<\/p>\n\n\n\n With years of deep involvement in hydraulic system integration, we have consistently focused our energy on optimizing design tools, refining production processes, and accumulating core component inventory. Relying on solid technology and a tangible manufacturing foundation, we resolve your pain points and ensure you can confidently choose every hydraulic valve block product we manufacture.<\/p>\n\n\n\n If you require technical discussions or product supply regarding coal mine scraper conveyor tensioning systems, hydraulic roof support controls, or hydraulic power units for other equipment, please feel free to contact us at any time.<\/p>\n","protected":false},"excerpt":{"rendered":" \u9a6c\u8fbe\u7d27\u94fe\u5668\u6db2\u538b\u63a7\u5236\u9600\u7ec4–\u7164\u77ff […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3140","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/vohyd.cn\/index.php?rest_route=\/wp\/v2\/posts\/3140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/vohyd.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/vohyd.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/vohyd.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/vohyd.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3140"}],"version-history":[{"count":3,"href":"http:\/\/vohyd.cn\/index.php?rest_route=\/wp\/v2\/posts\/3140\/revisions"}],"predecessor-version":[{"id":3146,"href":"http:\/\/vohyd.cn\/index.php?rest_route=\/wp\/v2\/posts\/3140\/revisions\/3146"}],"wp:attachment":[{"href":"http:\/\/vohyd.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/vohyd.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3140"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/vohyd.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}