{"id":1032,"date":"2013-11-28T00:00:00","date_gmt":"2013-11-28T00:00:00","guid":{"rendered":"https:\/\/www.dgcrane.com\/posts\/an-overview-of-bridge-cranes\/"},"modified":"2024-09-09T06:52:30","modified_gmt":"2024-09-09T06:52:30","slug":"an-overview-of-bridge-cranes","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/vi\/overview-bridge-cranes\/","title":{"rendered":"T\u1ed5ng quan v\u1ec1 c\u1ea7u tr\u1ee5c"},"content":{"rendered":"<p>C\u1ea7n tr\u1ee5c, \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 d\u1ee5ng c\u1ee5 c\u01a1 kh\u00ed \u0111\u01b0\u1ee3c g\u1eafn k\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chuy\u1ec3n t\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc v\u1eeba v\u00e0 nh\u1ecf tr\u00ean m\u1ed9t kho\u1ea3ng c\u00e1ch ng\u1eafn, c\u00f3 nhi\u1ec1u ki\u1ec3u d\u00e1ng kh\u00e1c nhau bao g\u1ed3m c\u1ea7n tr\u1ee5c c\u1ea7u v\u00e0 c\u1ea7n tr\u1ee5c gi\u00e0n. C\u1ea7n tr\u1ee5c d\u00f9 c\u1ed1 \u0111\u1ecbnh hay di \u0111\u1ed9ng \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng tay ho\u1eb7c b\u1eb1ng \u0111i\u1ec7n. C\u1ea7u tr\u1ee5c l\u1eafp gh\u00e9p l\u00e0 m\u1ed9t trong s\u1ed1 \u00edt c\u00e1c lo\u1ea1i c\u1ea7u tr\u1ee5c kh\u00f4ng th\u1ec3 l\u00e0m m\u00f4 h\u00ecnh xe c\u00f4ng nghi\u1ec7p, lo\u1ea1i c\u00f2n l\u1ea1i l\u00e0 c\u1ea7u tr\u1ee5c gi\u00e0n (hay c\u00f2n g\u1ecdi l\u00e0 c\u1ea7u tr\u1ee5c di chuy\u1ec3n tr\u00ean cao). C\u1ea7u tr\u1ee5c \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi m\u1ed9t d\u1ea7m c\u1ea7u m\u1ed9t v\u1ecbnh (t\u01b0\u1eddng n\u00e0y sang t\u01b0\u1eddng kh\u00e1c) di chuy\u1ec3n tr\u00ean hai \u0111\u01b0\u1eddng ray g\u1eafn \u1edf hai b\u00ean t\u01b0\u1eddng. M\u1ed9t v\u1eadn th\u0103ng v\u00e0 xe \u0111\u1ea9y, \u0111i qua c\u1ea7u, cung c\u1ea5p t\u1ed5ng c\u1ed9ng ba tr\u1ee5c chuy\u1ec3n \u0111\u1ed9ng. V\u1eadn th\u0103ng chuy\u1ec3n t\u1ea3i l\u00ean xu\u1ed1ng, xe \u0111\u1ea9y chuy\u1ec3n t\u1ea3i sang ph\u1ea3i v\u00e0 tr\u00e1i, c\u1ea7u tr\u1ee5c di chuy\u1ec3n t\u1ea3i v\u1ec1 ph\u00eda tr\u01b0\u1edbc v\u00e0 ph\u00eda sau.<\/p>\r\n<h3>K\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t c\u1ea7u tr\u1ee5c th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 bao g\u1ed3m nh\u1eefng \u0111i\u1ec1u sau:<\/h3>\r\n<p>Xe \u0111\u1ea9y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u0111\u1ed9 d\u1ed1c ngang t\u1ed1i \u0111a l\u00e0 1%, Xe \u0111\u1ea9y cu\u1ed1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u0111\u1ed9 d\u1ed1c d\u1ecdc t\u1ed1i \u0111a l\u00e0 3%, Ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft NEMA 4, B\u1ea3o v\u1ec7 kh\u1ecfi th\u1eddi ti\u1ebft l\u1ea1nh, phanh kh\u1ea9n c\u1ea5p s\u1ebd d\u1eebng c\u1ea7n c\u1ea9u \u1edf \u0111\u1ed9 cao 12\u2032 v\u00e0 \u0111\u00f3ng vai tr\u00f2 gi\u1eef ch\u1eb7t (phanh \u0111\u1ee7 cho v\u1eadn t\u1ed1c gi\u00f3 50 MPH), k\u1ebft c\u1ea5u bu l\u00f4ng ho\u00e0n to\u00e0n \u0111\u1ec3 d\u1ec5 d\u00e0ng l\u1eafp d\u1ef1ng c\u0169ng nh\u01b0 th\u00e1o r\u1eddi \u0111\u1ec3 di chuy\u1ec3n d\u1ec5 d\u00e0ng, \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa b\u1eb1ng s\u00f3ng v\u00f4 tuy\u1ebfn v\u00e0 l\u1ed1i \u0111i d\u00e0i to\u00e0n b\u1ed9 v\u1edbi thang l\u00ean xu\u1ed1ng \u1edf 1 ch\u00e2n.<\/p>\r\n<p>C\u1ea7n tr\u1ee5c c\u1ea7u m\u1edbi v\u00e0 \u0111\u00e3 qua s\u1eed d\u1ee5ng (ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn nh\u01b0 m\u1ed9t l\u1ef1a ch\u1ecdn hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed) \u0111\u1ea1i di\u1ec7n cho m\u1ed9t lo\u1ea1i c\u1ea7n tr\u1ee5c \u0111\u00e1ng ch\u00fa \u00fd c\u00f3 ch\u1ee9c n\u0103ng v\u1edbi h\u1ec7 th\u1ed1ng r\u00f2ng r\u1ecdc \u0111\u01b0\u1ee3c treo tr\u00ean xe \u0111\u1ea9y di chuy\u1ec3n tr\u00ean \u0111\u01b0\u1eddng ray ch\u1ea1y d\u1ecdc theo m\u1ed9t ho\u1eb7c hai d\u1ea7m n\u1eb1m ngang th\u00e0nh m\u1ed9t n\u1eefa. C\u00e1c d\u1ea7m \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u1ea7u v\u00e0 ch\u00fang \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 \u1edf c\u1ea3 hai \u0111\u1ea7u. Th\u00f4ng th\u01b0\u1eddng, c\u00e2y c\u1ea7u di \u0111\u1ed9ng d\u1ecdc theo c\u1eb7p \u0111\u01b0\u1eddng ray ngang, cho ph\u00e9p c\u1ea7n tr\u1ee5c ph\u1ee5c v\u1ee5 m\u1ed9t khu v\u1ef1c h\u00ecnh ch\u1eef nh\u1eadt l\u1edbn. Trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng gian h\u00ecnh tr\u00f2n, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t d\u00e0n quay.<\/p>\r\n<p><img decoding=\"async\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2017\/04\/H0A7169.jpg\" alt=\"\"><\/p>\r\n<p>C\u1ea9u tr\u1ee5c, hay c\u1ea9u c\u1ea7u treo, l\u00e0 phi\u00ean b\u1ea3n c\u1ee7a c\u1ea9u n\u00e2ng v\u1eadt th\u1ec3 b\u1eb1ng m\u1ed9t t\u1eddi \u0111\u01b0\u1ee3c l\u1eafp trong xe \u0111\u1ea9y v\u00e0 c\u00f3 th\u1ec3 di chuy\u1ec3n theo chi\u1ec1u ngang tr\u00ean m\u1ed9t thanh ray ho\u1eb7c m\u1ed9t c\u1eb7p thanh ray \u0111\u01b0\u1ee3c l\u1eafp d\u01b0\u1edbi d\u1ea7m. C\u1ea9u di chuy\u1ec3n tr\u00ean cao v\u00e0 c\u1ea9u tr\u1ee5c \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p \u0111\u1ec3 n\u00e2ng nh\u1eefng v\u1eadt r\u1ea5t n\u1eb7ng v\u00e0 c\u1ea9u tr\u1ee5c l\u1edbn \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00f3ng t\u00e0u, trong \u0111\u00f3 c\u1ea7n c\u1ea9u n\u1eb1m tr\u00ean t\u00e0u cho ph\u00e9p n\u00e2ng v\u00e0 di chuy\u1ec3n nh\u1eefng v\u1eadt th\u1ec3 l\u1edbn nh\u01b0 \u0111\u1ed9ng c\u01a1 t\u00e0u tr\u00ean t\u00e0u. V\u1ec1 b\u1ea3n ch\u1ea5t, c\u1ea9u tr\u1ee5c ho\u1eb7c c\u1ea7u treo l\u00e0 lo\u1ea1i c\u1ea7n c\u1ea9u c\u00f3 c\u1ea7u di \u0111\u1ed9ng mang theo c\u01a1 c\u1ea5u n\u00e2ng di \u0111\u1ed9ng ho\u1eb7c c\u1ed1 \u0111\u1ecbnh v\u00e0 di chuy\u1ec3n tr\u00ean c\u1ea5u tr\u00fac \u0111\u01b0\u1eddng b\u0103ng c\u1ed1 \u0111\u1ecbnh tr\u00ean cao.<\/p>\r\n<p><img decoding=\"async\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2017\/04\/IMG_8783.jpg\" alt=\"\"><\/p>\r\n<p>C\u1ea7u tr\u1ee5c treo, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u1ea7u tr\u1ee5c ho\u1eb7c c\u1ea7n tr\u1ee5c treo, c\u00f3 c\u00e1c \u0111\u1ea7u c\u1ee7a d\u1ea7m \u0111\u1ee1 t\u1ef1a v\u00e0o b\u00e1nh xe ch\u1ea1y tr\u00ean \u0111\u01b0\u1eddng ray \u1edf t\u1ea7m cao, th\u01b0\u1eddng \u1edf c\u00e1c b\u1ee9c t\u01b0\u1eddng b\u00ean song song c\u1ee7a m\u1ed9t nh\u00e0 m\u00e1y ho\u1eb7c c\u00e1c t\u00f2a nh\u00e0 c\u00f4ng nghi\u1ec7p l\u1edbn t\u01b0\u01a1ng t\u1ef1, sao cho to\u00e0n b\u1ed9. c\u1ea7n tr\u1ee5c c\u00f3 th\u1ec3 di chuy\u1ec3n theo chi\u1ec1u d\u00e0i c\u1ee7a t\u00f2a nh\u00e0 trong khi v\u1eadn th\u0103ng c\u00f3 th\u1ec3 di chuy\u1ec3n t\u1edbi lui theo chi\u1ec1u r\u1ed9ng c\u1ee7a t\u00f2a nh\u00e0.<\/p>","protected":false},"excerpt":{"rendered":"C\u1ea7n tr\u1ee5c, \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 d\u1ee5ng c\u1ee5 c\u01a1 kh\u00ed g\u1eafn k\u1ebft \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chuy\u1ec3n c\u00e1c t\u1ea3i tr\u1ecdng v\u1eeba v\u00e0 nh\u1ecf tr\u00ean m\u1ed9t kho\u1ea3ng c\u00e1ch ng\u1eafn, c\u00f3 nhi\u1ec1u ki\u1ec3u d\u00e1ng kh\u00e1c nhau bao g\u1ed3m c\u1ea7u tr\u1ee5c v\u00e0 c\u1ea7n tr\u1ee5c gi\u00e0n. C\u1ea7n tr\u1ee5c d\u00f9 c\u1ed1 \u0111\u1ecbnh hay di \u0111\u1ed9ng \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng tay ho\u1eb7c b\u1eb1ng \u0111i\u1ec7n. C\u1ea7u tr\u1ee5c g\u1eafn c\u1ea7u l\u00e0 m\u1ed9t trong s\u1ed1 \u00edt c\u00e1c lo\u1ea1i c\u1ea7n [\u2026]","protected":false},"featured_media":1292,"parent":0,"menu_order":0,"template":"","posts_category":[351],"posts_tag":[61,7,41,54,27,33,34],"class_list":["post-1032","posts","type-posts","status-publish","has-post-thumbnail","hentry","posts_category-blog","posts_tag-bridge-crane","posts_tag-crane","posts_tag-crane-posts","posts_tag-gantry-crane","posts_tag-hoist","posts_tag-news","posts_tag-overhead-cranes"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/1032"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":2,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/1032\/revisions"}],"predecessor-version":[{"id":1313,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/1032\/revisions\/1313"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/media\/1292"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/media?parent=1032"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/posts_category?post=1032"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/posts_tag?post=1032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}