{"id":10206,"date":"2024-10-23T00:57:40","date_gmt":"2024-10-23T00:57:40","guid":{"rendered":"https:\/\/www.dgcrane.com\/?post_type=posts&#038;p=10206"},"modified":"2024-10-23T01:57:55","modified_gmt":"2024-10-23T01:57:55","slug":"5-safety-protection-devices-for-ladle-cranes","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/vi\/posts\/5-safety-protection-devices-for-ladle-cranes\/","title":{"rendered":"5 Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n quan tr\u1ecdng cho c\u1ea7n tr\u1ee5c g\u1ea7u x\u00fac: N\u00e2ng cao t\u00ednh an to\u00e0n v\u00e0 \u0111\u1ed9 tin c\u1eady trong s\u1ea3n xu\u1ea5t th\u00e9p"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>M\u1ee5c l\u1ee5c<\/p><nav><ul><li><a href=\"#load-limiting-devices\">Thi\u1ebft b\u1ecb gi\u1edbi h\u1ea1n t\u1ea3i<\/a><\/li><li><a href=\"#travel-limiting-devices\">Thi\u1ebft b\u1ecb h\u1ea1n ch\u1ebf di chuy\u1ec3n<\/a><ul><li><a href=\"#hoisting-travel-limit-switch\">C\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh n\u00e2ng<\/a><\/li><li><a href=\"#running-travel-limit-switch\">C\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh \u0111ang ch\u1ea1y<\/a><\/li><li><a href=\"#photoelectric-anti-collision-device\">Thi\u1ebft b\u1ecb ch\u1ed1ng va ch\u1ea1m quang \u0111i\u1ec7n<\/a><\/li><li><a href=\"#buffers-and-end-stops\">B\u1ed9 \u0111\u1ec7m v\u00e0 \u0111i\u1ec3m d\u1eebng cu\u1ed1i<\/a><\/li><\/ul><\/li><li><a href=\"#other-safety-devices\">C\u00e1c thi\u1ebft b\u1ecb an to\u00e0n kh\u00e1c<\/a><ul><li><a href=\"#interlock-protection-devices\">Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 li\u00ean \u0111\u1ed9ng<\/a><\/li><li><a href=\"#rail-sweepers\">M\u00e1y qu\u00e9t \u0111\u01b0\u1eddng ray<\/a><\/li><li><a href=\"#emergency-brake\">Phanh kh\u1ea9n c\u1ea5p<\/a><\/li><\/ul><\/li><li><a href=\"#protective-devices\">Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7<\/a><ul><li><a href=\"#protective-covers\">V\u1ecf b\u1ea3o v\u1ec7<\/a><\/li><li><a href=\"#electric-shock-prevention\">Ph\u00f2ng ng\u1eeba \u0111i\u1ec7n gi\u1eadt<\/a><\/li><li><a href=\"#fall-protection\">B\u1ea3o v\u1ec7 ch\u1ed1ng r\u01a1i<\/a><\/li><\/ul><\/li><li><a href=\"#safety-information-and-alarm-devices\">Th\u00f4ng tin an to\u00e0n v\u00e0 thi\u1ebft b\u1ecb b\u00e1o \u0111\u1ed9ng<\/a><ul><li><a href=\"#overspeed-switch\">C\u00f4ng t\u1eafc qu\u00e1 t\u1ed1c \u0111\u1ed9<\/a><\/li><li><a href=\"#height-indicator\">Ch\u1ec9 b\u00e1o chi\u1ec1u cao<\/a><\/li><li><a href=\"#speed-detection-system\">H\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n t\u1ed1c \u0111\u1ed9<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"580\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2024\/10\/Ladle-Cranes.png\" alt=\"\" class=\"wp-image-10212\"><\/figure>\n\n\n\n<p>M\u1ed9t <a href=\"https:\/\/www.dgcrane.com\/vi\/yz-ladle-handling-cranes-for-foundry\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.dgcrane.com\/yz-ladle-handling-cranes-for-foundry\/\" rel=\"noreferrer noopener\">c\u1ea7n c\u1ea9u g\u1ea7u m\u00fac<\/a> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh \u0111\u00fac v\u00e0 c\u00e1n th\u00e9p li\u00ean t\u1ee5c, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 \u0111\u1ec3 n\u00e2ng kim lo\u1ea1i n\u00f3ng ch\u1ea3y. N\u1ebfu x\u1ea3y ra tai n\u1ea1n l\u1edbn, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng, bao g\u1ed3m th\u01b0\u01a1ng vong v\u00e0 h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb. C\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n c\u1ee7a c\u1ea7n c\u1ea9u l\u00e0 thi\u1ebft b\u1ecb thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u1ed1n c\u00f3 c\u1ee7a n\u00f3, \u0111\u00f3ng vai tr\u00f2 l\u00e0 r\u00e0o c\u1ea3n quan tr\u1ecdng \u0111\u1ec3 ng\u0103n ng\u1eeba l\u1ed7i c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o v\u1ec7 c\u1ea3 nh\u00e2n vi\u00ean v\u00e0 m\u00e1y m\u00f3c.<\/p>\n\n\n\n<p>C\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n c\u00f3 c\u00f2n nguy\u00ean v\u1eb9n v\u00e0 \u0111\u1ea7y \u0111\u1ee7 hay kh\u00f4ng, vi\u1ec7c b\u1ea3o d\u01b0\u1ee1ng v\u00e0 qu\u1ea3n l\u00fd c\u00f3 k\u1ecbp th\u1eddi v\u00e0 hi\u1ec7u qu\u1ea3 hay kh\u00f4ng, v\u00e0 ch\u00fang c\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u1ea1y b\u00e9n v\u00e0 \u0111\u00e1ng tin c\u1eady hay kh\u00f4ng \u0111\u1ec1u \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a c\u1ea7n tr\u1ee5c. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y l\u00e0 th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a c\u1ea7n tr\u1ee5c. Do t\u00ednh ch\u1ea5t \u0111\u1eb7c th\u00f9 c\u1ee7a c\u1ea7n tr\u1ee5c g\u1ea7u x\u00fac x\u1eed l\u00fd kim lo\u1ea1i n\u00f3ng ch\u1ea3y n\u00ean c\u00e1c y\u00eau c\u1ea7u v\u1ec1 an to\u00e0n c\u1ee7a ch\u00fang kh\u00e1c v\u1edbi c\u00e1c y\u00eau c\u1ea7u c\u1ee7a c\u1ea7n tr\u1ee5c th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"load-limiting-devices\">Thi\u1ebft b\u1ecb gi\u1edbi h\u1ea1n t\u1ea3i<\/h2>\n\n\n\n<p>M\u1ee5c \u0111\u00edch c\u1ee7a thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i l\u00e0 ng\u0103n ch\u1eb7n c\u1ea7n c\u1ea9u qu\u00e1 t\u1ea3i, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng c\u01a1 c\u1ea5u, k\u1ebft c\u1ea5u ho\u1eb7c g\u00e2y ra tai n\u1ea1n. C\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u1ea7n c\u1ea9u g\u1ea7u ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e2n \u0111i\u1ec7n t\u1eed v\u00e0 <a href=\"https:\/\/www.dgcrane.com\/vi\/overload-limiter\/\" target=\"_blank\" data-type=\"link\" data-id=\"https:\/\/www.dgcrane.com\/overload-limiter\/\" rel=\"noreferrer noopener\">b\u1ed9 gi\u1edbi h\u1ea1n qu\u00e1 t\u1ea3i<\/a>.<\/p>\n\n\n\n<p>Khi b\u1ed9 gi\u1edbi h\u1ea1n t\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean c\u01a1 c\u1ea5u n\u00e2ng, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i gh\u1ebf \u1ed5 tr\u1ee5c tang tr\u1ed1ng. N\u1ebfu c\u00e2n \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean c\u01a1 c\u1ea5u n\u00e2ng ch\u00ednh, n\u00f3 c\u0169ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i, v\u1edbi c\u00e1c c\u1ea3m bi\u1ebfn th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp b\u00ean d\u01b0\u1edbi tr\u1ee5c puli c\u1ed1 \u0111\u1ecbnh.<\/p>\n\n\n\n<p>Khi t\u1ea3i tr\u1ecdng th\u1ef1c t\u1ebf v\u01b0\u1ee3t qu\u00e1 95% c\u1ee7a t\u1ea3i tr\u1ecdng \u0111\u1ecbnh m\u1ee9c, b\u1ed9 gi\u1edbi h\u1ea1n t\u1ea3i s\u1ebd g\u1eedi t\u00edn hi\u1ec7u b\u00e1o \u0111\u1ed9ng. N\u1ebfu t\u1ea3i tr\u1ecdng th\u1ef1c t\u1ebf n\u1eb1m gi\u1eefa 100% v\u00e0 110% c\u1ee7a t\u1ea3i tr\u1ecdng \u0111\u1ecbnh m\u1ee9c, b\u1ed9 gi\u1edbi h\u1ea1n t\u1ea3i s\u1ebd c\u1eaft ngu\u1ed3n \u0111i\u1ec7n n\u00e2ng, ch\u1ec9 cho ph\u00e9p v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c n\u00e2ng di chuy\u1ec3n xu\u1ed1ng d\u01b0\u1edbi, nh\u01b0ng ng\u0103n kh\u00f4ng cho v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c n\u00e2ng l\u00ean xa h\u01a1n. C\u00e2n \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"580\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2024\/10\/Bearing-seat-overload-limiters.png\" alt=\"\" class=\"wp-image-10221\" style=\"width:840px;height:auto\"><figcaption class=\"wp-element-caption\">B\u1ed9 h\u1ea1n ch\u1ebf qu\u00e1 t\u1ea3i gh\u1ebf \u1ed5 tr\u1ee5c<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"travel-limiting-devices\">Thi\u1ebft b\u1ecb h\u1ea1n ch\u1ebf di chuy\u1ec3n<\/h2>\n\n\n\n<p>Ch\u00fang ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh n\u00e2ng, c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh ch\u1ea1y, thi\u1ebft b\u1ecb ch\u1ed1ng va ch\u1ea1m quang \u0111i\u1ec7n, b\u1ed9 \u0111\u1ec7m v\u00e0 \u0111i\u1ec3m d\u1eebng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"hoisting-travel-limit-switch\">C\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh n\u00e2ng<\/h3>\n\n\n\n<p>C\u00f4ng t\u1eafc h\u00e0nh tr\u00ecnh n\u00e2ng bao g\u1ed3m m\u1ed9t c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n quay v\u00e0 m\u1ed9t c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n b\u00faa c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng, v\u1edbi hai b\u1ed9 c\u00f4ng t\u1eafc c\u00f3 c\u1ea5u tr\u00fac kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady. Khi thi\u1ebft b\u1ecb n\u00e2ng \u0111\u1ea1t \u0111\u1ebfn v\u1ecb tr\u00ed gi\u1edbi h\u1ea1n tr\u00ean \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, c\u1ea3 hai c\u00f4ng t\u1eafc c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng c\u1eaft ngu\u1ed3n \u0111i\u1ec7n n\u00e2ng. Khi thi\u1ebft b\u1ecb h\u1ea1 xu\u1ed1ng v\u1ecb tr\u00ed gi\u1edbi h\u1ea1n d\u01b0\u1edbi \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n quay s\u1ebd t\u1ef1 \u0111\u1ed9ng c\u1eaft ngu\u1ed3n \u0111i\u1ec7n h\u1ea1 xu\u1ed1ng (\u0111i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp khi chi\u1ec1u cao n\u00e2ng v\u01b0\u1ee3t qu\u00e1 20 m\u00e9t). N\u00f3 c\u0169ng \u0111\u1ea3m b\u1ea3o r\u1eb1ng khi thi\u1ebft b\u1ecb n\u00e2ng h\u1ea1 xu\u1ed1ng v\u1ecb tr\u00ed gi\u1edbi h\u1ea1n d\u01b0\u1edbi, d\u00e2y c\u00e1p v\u1eabn qu\u1ea5n quanh tang v\u1edbi kh\u00f4ng \u00edt h\u01a1n hai v\u00f2ng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh b\u1edfi thi\u1ebft k\u1ebf.<\/p>\n\n\n\n<p>Sau khi ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ed9ng c\u01a1 cho chuy\u1ec3n \u0111\u1ed9ng l\u00ean ho\u1eb7c xu\u1ed1ng b\u1ecb ng\u1eaft, ngu\u1ed3n \u0111i\u1ec7n cho chuy\u1ec3n \u0111\u1ed9ng theo h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i v\u1eabn c\u00f2n, cho ph\u00e9p c\u01a1 c\u1ea5u ho\u1ea1t \u0111\u1ed9ng ng\u01b0\u1ee3c l\u1ea1i. C\u00f4ng t\u1eafc quay \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean tr\u1ee5c ng\u1eafn \u1edf cu\u1ed1i tang v\u00e0 quay \u0111\u1ed3ng b\u1ed9 v\u1edbi tang, thu th\u1eadp s\u1ed1 v\u00f2ng quay \u0111\u1ec3 ki\u1ec3m so\u00e1t gi\u1edbi h\u1ea1n n\u00e2ng l\u00ean v\u00e0 h\u1ea1 xu\u1ed1ng.<\/p>\n\n\n\n<p>C\u00f4ng t\u1eafc b\u00faa c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean khung xe \u0111\u1ea9y, v\u1edbi b\u1ea3n th\u00e2n b\u00faa \u0111\u01b0\u1ee3c g\u1eafn tr\u00ean gi\u00e1 \u0111\u1ee1 kh\u1ed1i r\u00f2ng r\u1ecdc c\u1ee7a c\u1ed5ng tr\u1ee5c, v\u00e0 \u1ed1ng b\u1ecdc b\u00faa \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0o d\u00e2y c\u00e1p n\u00e2ng. Khi c\u1ed5ng tr\u1ee5c \u0111\u1ea1t \u0111\u1ebfn gi\u1edbi h\u1ea1n tr\u00ean, d\u00e2y c\u00e1p h\u1ed7 tr\u1ee3 m\u1ea5t \u0111\u1ed9 c\u0103ng, thi\u1ebft l\u1eadp l\u1ea1i c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n v\u00e0 c\u1eaft ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ec3 d\u1eebng c\u01a1 c\u1ea5u.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"580\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2024\/10\/heavy-hammer-limit-switch.png\" alt=\"\" class=\"wp-image-10275\"><figcaption class=\"wp-element-caption\">c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n b\u00faa n\u1eb7ng<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"running-travel-limit-switch\">C\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh \u0111ang ch\u1ea1y<\/h3>\n\n\n\n<p>C\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n v\u00e0 thanh c\u1ea3n \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean d\u1ea7m ch\u00ednh. C\u1ea7n tr\u1ee5c v\u00e0 c\u00e1c xe \u0111\u1ea9y ch\u00ednh v\u00e0 ph\u1ee5 c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh ch\u1ea1y theo t\u1eebng h\u01b0\u1edbng. Khi c\u1ea7n tr\u1ee5c \u0111\u1ea1t \u0111\u1ebfn v\u1ecb tr\u00ed gi\u1edbi h\u1ea1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, thanh an to\u00e0n s\u1ebd k\u00edch ho\u1ea1t c\u00f4ng t\u1eafc theo c\u00f9ng m\u1ed9t h\u01b0\u1edbng, c\u1eaft ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ec3 di chuy\u1ec3n v\u1ec1 ph\u00eda tr\u01b0\u1edbc. Trong tr\u01b0\u1eddng h\u1ee3p v\u1eadn h\u00e0nh t\u1ed1c \u0111\u1ed9 cao (v\u00ed d\u1ee5: l\u1edbn h\u01a1n 100 m\/ph\u00fat) ho\u1eb7c khi c\u00f3 y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t v\u1ec1 v\u1ecb tr\u00ed d\u1eebng, c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh ch\u1ea1y hai giai \u0111o\u1ea1n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t khi c\u1ea7n thi\u1ebft. Giai \u0111o\u1ea1n \u0111\u1ea7u ti\u00ean g\u1eedi t\u00edn hi\u1ec7u gi\u1ea3m t\u1ed1c \u0111\u1ec3 l\u00e0m ch\u1eadm c\u1ea7n tr\u1ee5c, trong khi giai \u0111o\u1ea1n th\u1ee9 hai t\u1ef1 \u0111\u1ed9ng c\u1eaft ngu\u1ed3n \u0111i\u1ec7n v\u00e0 d\u1eebng c\u1ea7n tr\u1ee5c.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"580\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2024\/10\/travel-limit-switch.png\" alt=\"\" class=\"wp-image-10274\"><figcaption class=\"wp-element-caption\">c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n h\u00e0nh tr\u00ecnh<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"photoelectric-anti-collision-device\">Thi\u1ebft b\u1ecb ch\u1ed1ng va ch\u1ea1m quang \u0111i\u1ec7n<\/h3>\n\n\n\n<p>M\u1ed9t s\u1ed1 c\u1ea7n c\u1ea9u \u0111\u01b0\u1ee3c trang b\u1ecb thi\u1ebft b\u1ecb ch\u1ed1ng va ch\u1ea1m quang \u0111i\u1ec7n \u0111\u1ec3 ng\u0103n ng\u1eeba va ch\u1ea1m gi\u1eefa hai c\u1ea7n c\u1ea9u ch\u1ea1y tr\u00ean c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng ray. Nguy\u00ean l\u00fd c\u01a1 b\u1ea3n l\u00e0 khi hai c\u1ea7n c\u1ea9u ti\u1ebfn \u0111\u1ebfn m\u1ed9t kho\u1ea3ng c\u00e1ch an to\u00e0n nh\u1ea5t \u0111\u1ecbnh, \u00e1nh s\u00e1ng ph\u00e1t ra t\u1eeb m\u00e1y chi\u1ebfu c\u1ee7a c\u1ea7n c\u1ea9u A s\u1ebd \u0111\u01b0\u1ee3c b\u1ed9 thu c\u1ee7a c\u1ea7n c\u1ea9u B thu \u0111\u01b0\u1ee3c. Th\u00f4ng qua \u1ed1ng quang \u0111i\u1ec7n, t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u1ea1o ra. Sau khi \u0111\u1ecbnh h\u00ecnh v\u00e0 khu\u1ebfch \u0111\u1ea1i d\u1ea1ng s\u00f3ng, r\u01a1le \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t v\u00e0 c\u00f2i b\u00e1o \u0111\u1ed9ng s\u1ebd ph\u00e1t ra \u00e2m thanh b\u00e1o \u0111\u1ed9ng, t\u1ef1 \u0111\u1ed9ng c\u1eaft ngu\u1ed3n \u0111i\u1ec7n c\u1ee7a c\u01a1 c\u1ea5u ch\u1ea1y. C\u1ea3 hai c\u1ea7n c\u1ea9u ph\u1ea3i \u0111\u01b0\u1ee3c trang b\u1ecb m\u1ed9t b\u1ed9 thi\u1ebft b\u1ecb nh\u01b0 v\u1eady \u0111\u1ec3 b\u1ea3o v\u1ec7 l\u1eabn nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"buffers-and-end-stops\">B\u1ed9 \u0111\u1ec7m v\u00e0 \u0111i\u1ec3m d\u1eebng cu\u1ed1i<\/h3>\n\n\n\n<p>C\u01a1 c\u1ea5u ch\u1ea1y c\u1ee7a c\u1ea3 c\u1ea7n c\u1ea9u v\u00e0 xe \u0111\u1ea9y \u0111\u1ec1u \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 \u0111\u1ec7m. B\u1ed9 \u0111\u1ec7m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng c\u1ee7a c\u00e1c c\u01a1 c\u1ea5u chuy\u1ec3n \u0111\u1ed9ng v\u00e0 gi\u1ea3m t\u00e1c \u0111\u1ed9ng. C\u00e1c thanh c\u1ea3n v\u00e0 \u0111i\u1ec3m d\u1eebng cu\u1ed1i tr\u00ean \u0111\u01b0\u1eddng ray ph\u1ea3i ch\u1eafc ch\u1eafn v\u00e0 \u0111\u00e1ng tin c\u1eady. Thi\u1ebft k\u1ebf \u0111i\u1ec3m d\u1eebng cu\u1ed1i ph\u1ea3i ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 vi\u1ec7c c\u1ea7n c\u1ea9u b\u1ecb tr\u1eadt b\u00e1nh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"other-safety-devices\">C\u00e1c thi\u1ebft b\u1ecb an to\u00e0n kh\u00e1c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"interlock-protection-devices\">Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 li\u00ean \u0111\u1ed9ng<\/h3>\n\n\n\n<p>C\u00e1c c\u1eeda d\u1eabn \u0111\u1ebfn c\u1ea7n tr\u1ee5c g\u1ea7u m\u00fac v\u00e0 c\u00e1c c\u1eeda d\u1eabn t\u1eeb cabin c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u1ebfn s\u00e0n c\u1ea7u \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng t\u1eafc li\u00ean \u0111\u1ed9ng. Khi c\u1eeda m\u1edf, ngu\u1ed3n \u0111i\u1ec7n cho t\u1ea5t c\u1ea3 c\u00e1c c\u01a1 c\u1ea5u s\u1ebd b\u1ecb ng\u1eaft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rail-sweepers\">M\u00e1y qu\u00e9t \u0111\u01b0\u1eddng ray<\/h3>\n\n\n\n<p>M\u00e1y qu\u00e9t \u0111\u01b0\u1eddng ray \u0111\u01b0\u1ee3c l\u1eafp \u1edf ph\u00eda tr\u01b0\u1edbc b\u00e1nh xe tr\u00ean c\u1ea3 c\u1ea7n c\u1ea9u v\u00e0 xe \u0111\u1ea9y. Kho\u1ea3ng c\u00e1ch gi\u1eefa \u0111\u00e1y t\u1ea5m qu\u00e9t v\u00e0 \u0111\u1ec9nh \u0111\u01b0\u1eddng ray \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00e0 10 mm v\u00e0 ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ecdn s\u1ea1ch c\u00e1c m\u1ea3nh v\u1ee5n c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf ho\u1ea1t \u0111\u1ed9ng tr\u00ean \u0111\u01b0\u1eddng ray. C\u00e1c bi\u1ec3n b\u00e1o c\u1ea3nh b\u00e1o \u0111\u01b0\u1ee3c \u0111\u1eb7t d\u1ecdc theo \u0111\u01b0\u1eddng ray, c\u1ea5m ch\u1ea5t v\u1eadt li\u1ec7u g\u1ea7n \u0111\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"emergency-brake\">Phanh kh\u1ea9n c\u1ea5p<\/h3>\n\n\n\n<p>Phanh kh\u1ea9n c\u1ea5p l\u00e0 thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n bao g\u1ed3m c\u00f4ng t\u1eafc qu\u00e1 t\u1ed1c \u0111\u1ed9 c\u00f3 \u0111\u1ed9 tin c\u1eady cao v\u00e0 b\u1ed9 m\u00e3 h\u00f3a. Trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfng h\u00f3c \u1edf x\u00edch truy\u1ec1n \u0111\u1ed9ng c\u01a1 c\u1ea5u n\u00e2ng\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 tang tr\u1ed1ng qu\u00e1 t\u1ed1c \u0111\u1ed9, tang tr\u1ed1ng kh\u00f4ng \u0111\u1ed3ng b\u1ed9, n\u00fat kh\u1ea9n c\u1ea5p \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t ho\u1eb7c m\u1ea5t \u0111i\u1ec7n \u0111\u1ed9t ng\u1ed9t\u2014phanh kh\u1ea9n c\u1ea5p s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 d\u1eebng tang tr\u1ed1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady, \u0111\u1ea3m b\u1ea3o an to\u00e0n cho c\u1ea7n c\u1ea9u. <\/p>\n\n\n\n<p>Phanh kh\u1ea9n c\u1ea5p \u0111\u01b0\u1ee3c l\u1eafp \u1edf cu\u1ed1i tang. So v\u1edbi phanh th\u00f4ng th\u01b0\u1eddng, n\u00f3 t\u1ea1o ra m\u00f4 men phanh l\u1edbn h\u01a1n nhi\u1ec1u, \u0111\u1ee7 \u0111\u1ec3 t\u1ef1 m\u00ecnh v\u01b0\u1ee3t qua m\u00f4 men do to\u00e0n b\u1ed9 t\u1ea3i tr\u1ecdng t\u1ea1o ra tr\u00ean tang c\u1ee7a c\u01a1 c\u1ea5u n\u00e2ng. C\u01a1 c\u1ea5u n\u00e2ng ch\u00ednh \u0111\u01b0\u1ee3c trang b\u1ecb hai b\u1ed9 thi\u1ebft b\u1ecb d\u1eabn \u0111\u1ed9ng v\u00e0 khi kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i c\u1ee9ng tr\u00ean tr\u1ee5c ra ho\u1eb7c khi ch\u1ec9 c\u00f3 m\u1ed9t thi\u1ebft b\u1ecb d\u1eabn \u0111\u1ed9ng, phanh kh\u1ea9n c\u1ea5p ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp tr\u00ean tang c\u00e1p.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"870\" height=\"580\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2024\/10\/Emergency-brake.png\" alt=\"\" class=\"wp-image-10222\"><figcaption class=\"wp-element-caption\">Phanh kh\u1ea9n c\u1ea5p<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"protective-devices\">Thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"protective-covers\">V\u1ecf b\u1ea3o v\u1ec7<\/h3>\n\n\n\n<p>N\u1eafp puli \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u1ec3 ng\u0103n c\u00e1p th\u00e9p tr\u01b0\u1ee3t ra kh\u1ecfi r\u00e3nh. C\u00e1c t\u1ea5m c\u00e1ch nhi\u1ec7t b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean d\u01b0\u1edbi thi\u1ebft b\u1ecb n\u00e2ng gi\u00e0n \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1p th\u00e9p kh\u1ecfi nhi\u1ec7t b\u1ee9c x\u1ea1 tr\u1ef1c ti\u1ebfp v\u00e0 ng\u0103n th\u00e9p n\u00f3ng ch\u1ea3y b\u1eafn v\u00e0o c\u00e1p th\u00e9p. N\u1eafp b\u1ea3o v\u1ec7 (ho\u1eb7c thanh ray) \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u1ec3 che ch\u1eafn c\u00e1c b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng h\u1edf, c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y nguy hi\u1ec3m, ch\u1eb3ng h\u1ea1n nh\u01b0 kh\u1edbp n\u1ed1i v\u00e0 tr\u1ee5c truy\u1ec1n \u0111\u1ed9ng, trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh. C\u00e1c bi\u1ec3n b\u00e1o c\u1ea3nh b\u00e1o \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o n\u1eafp b\u1ea3o v\u1ec7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"electric-shock-prevention\">Ph\u00f2ng ng\u1eeba \u0111i\u1ec7n gi\u1eadt<\/h3>\n\n\n\n<p>Khi cabin c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u1ea7n tr\u1ee5c g\u1ea7u m\u00fac n\u1eb1m \u1edf ph\u00eda \u0111\u01b0\u1eddng ti\u1ebfp x\u00fac tr\u01b0\u1ee3t c\u1ee7a c\u1ea7n tr\u1ee5c, c\u00f3 nguy c\u01a1 \u0111i\u1ec7n gi\u1eadt. Trong c\u00e1c ph\u1ea7n c\u00f3 li\u00ean quan, l\u01b0\u1edbi b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t gi\u1eefa thang v\u00e0 l\u1ed1i \u0111i c\u1ee7a c\u1ea7n tr\u1ee5c v\u00e0 \u0111\u01b0\u1eddng ti\u1ebfp x\u00fac tr\u01b0\u1ee3t \u0111\u1ec3 c\u00e1ch ly, v\u00e0 c\u00e1c bi\u1ec3n b\u00e1o c\u1ea3nh b\u00e1o \u0111\u01b0\u1ee3c d\u00e1n tr\u00ean l\u01b0\u1edbi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"fall-protection\">B\u1ea3o v\u1ec7 ch\u1ed1ng r\u01a1i<\/h3>\n\n\n\n<p>C\u00e1c t\u1ea5m \u0111\u1ee1 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean d\u01b0\u1edbi c\u1ea3 hai \u0111\u1ea7u c\u1ee7a tang tr\u1ed1ng \u0111\u1ec3 ng\u0103n tang tr\u1ed1ng r\u01a1i trong tr\u01b0\u1eddng h\u1ee3p th\u00e1o tang tr\u1ed1ng ho\u1eb7c g\u00e3y tr\u1ee5c. C\u00e1c l\u1ed3ng ho\u1eb7c b\u1ec7 b\u1ea3o tr\u00ec an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u1edf hai \u0111\u1ea7u c\u1ea7u \u0111\u1ec3 cung c\u1ea5p khu v\u1ef1c \u0111\u1ee9ng cho nh\u00e2n vi\u00ean th\u1ef1c hi\u1ec7n b\u1ea3o tr\u00ec c\u1ea7n c\u1ea9u. B\u1ea5t k\u1ef3 bu l\u00f4ng k\u1ebft n\u1ed1i n\u00e0o b\u1ecb h\u1edf sau khi l\u1eafp \u0111\u1eb7t \u0111\u1ec1u \u0111\u01b0\u1ee3c h\u00e0n \u0111i\u1ec3m \u0111\u1ec3 ng\u0103n tang tr\u1ed1ng b\u1ecb l\u1ecfng v\u00e0 r\u01a1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"safety-information-and-alarm-devices\">Th\u00f4ng tin an to\u00e0n v\u00e0 thi\u1ebft b\u1ecb b\u00e1o \u0111\u1ed9ng<\/h2>\n\n\n\n<p>Ch\u00fang ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c ch\u1ec9 b\u00e1o bi\u00ean \u0111\u1ed9, m\u1ee9c \u0111\u1ed9, thi\u1ebft b\u1ecb c\u1ea3nh b\u00e1o t\u1ed1c \u0111\u1ed9 gi\u00f3 v\u00e0 c\u1ea5p \u0111\u1ed9 gi\u00f3, c\u1ea3nh b\u00e1o ng\u01b0\u1ee3c, c\u1ea3nh b\u00e1o \u0111i\u1ec7n \u00e1p nguy hi\u1ec3m, thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 li\u00ean \u0111\u1ed9ng \u0111i\u1ec7n, chu\u00f4ng ho\u1eb7c thi\u1ebft b\u1ecb t\u00edn hi\u1ec7u v\u00e0 bi\u1ec3n b\u00e1o an to\u00e0n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"overspeed-switch\">C\u00f4ng t\u1eafc qu\u00e1 t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n<p>C\u00e1c <em>Quy \u0111\u1ecbnh an to\u00e0n cho thi\u1ebft b\u1ecb n\u00e2ng<\/em> quy \u0111\u1ecbnh r\u1eb1ng \u201cc\u00e1c c\u01a1 c\u1ea5u n\u00e2ng quan tr\u1ecdng v\u00e0 c\u00e1c c\u01a1 c\u1ea5u n\u00e2ng kh\u00f4ng c\u00e2n b\u1eb1ng, trong \u0111\u00f3 vi\u1ec7c t\u0103ng t\u1ed1c qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m, ph\u1ea3i \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c c\u00f4ng t\u1eafc t\u0103ng t\u1ed1c qu\u00e1 m\u1ee9c. Gi\u00e1 tr\u1ecb c\u00e0i \u0111\u1eb7t c\u1ee7a c\u00f4ng t\u1eafc t\u0103ng t\u1ed1c qu\u00e1 m\u1ee9c ph\u1ee5 thu\u1ed9c v\u00e0o hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 t\u1ed1c \u0111\u1ed9 h\u1ea1 \u0111\u1ecbnh m\u1ee9c, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t trong kho\u1ea3ng t\u1eeb 1,25 \u0111\u1ebfn 1,4 l\u1ea7n t\u1ed1c \u0111\u1ed9 \u0111\u1ecbnh m\u1ee9c\u201d. C\u01a1 c\u1ea5u n\u00e2ng c\u1ee7a c\u1ea7n tr\u1ee5c g\u1ea7u th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb c\u00f4ng t\u1eafc t\u0103ng t\u1ed1c qu\u00e1 m\u1ee9c, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u1edbi \u0111\u1ed9ng c\u01a1 n\u00e2ng. N\u1ebfu kh\u00f4ng c\u00f3 kh\u00f4ng gian l\u1eafp \u0111\u1eb7t \u1edf ph\u00eda sau \u0111\u1ed9ng c\u01a1, c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi tr\u1ee5c t\u1ed1c \u0111\u1ed9 cao c\u1ee7a b\u1ed9 gi\u1ea3m t\u1ed1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"height-indicator\">Ch\u1ec9 b\u00e1o chi\u1ec1u cao<\/h3>\n\n\n\n<p>Ch\u1ec9 b\u00e1o \u0111\u1ed9 cao ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u01a1 c\u1ea5u n\u00e2ng \u0111\u1ec3 \u0111o v\u00e0 hi\u1ec3n th\u1ecb kho\u1ea3ng c\u00e1ch gi\u1eefa m\u00f3c c\u1ea9u v\u00e0 m\u1eb7t \u0111\u1ea5t. C\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u1ea7u ra \u0111i\u1ec1u khi\u1ec3n c\u1ee7a thi\u1ebft b\u1ecb l\u00e0 t\u00f9y ch\u1ecdn v\u00e0 c\u00f3 th\u1ec3 cung c\u1ea5p giao di\u1ec7n th\u1ee9 c\u1ea5p t\u1eeb xa. C\u1ea3m bi\u1ebfn \u0111\u1ed9 cao th\u01b0\u1eddng s\u1eed d\u1ee5ng b\u1ed9 m\u00e3 h\u00f3a v\u00e0 c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n. Ch\u1ec9 b\u00e1o \u0111\u1ed9 cao th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1eafp \u1edf \u0111\u1ea7u tr\u1ed1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"speed-detection-system\">H\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n<p>Do t\u00ednh ch\u1ea5t \u0111\u1eb7c bi\u1ec7t c\u1ee7a ho\u1ea1t \u0111\u1ed9ng \u0111\u00fac, m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n t\u1ed1c \u0111\u1ed9. Trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 b\u1ea5t k\u1ef3 b\u1ea5t th\u01b0\u1eddng n\u00e0o, h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n s\u1ebd x\u00e1c \u0111\u1ecbnh \u0111i\u1ec3m l\u1ed7i v\u00e0 PLC \u0111\u1ed3ng th\u1eddi g\u1eedi t\u00edn hi\u1ec7u phanh t\u01b0\u01a1ng \u1ee9ng \u0111\u1ebfn phanh kh\u1ea9n c\u1ea5p, ng\u0103n ng\u1eeba tai n\u1ea1n.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u1ea7n tr\u1ee5c \u0111\u00fac s\u1eed d\u1ee5ng c\u01a1 c\u1ea5u n\u00e2ng c\u00f3 b\u1ed9 gi\u1ea3m t\u1ed1c h\u00e0nh tinh, h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n t\u1ed1c \u0111\u1ed9 th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. H\u1ec7 th\u1ed1ng bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean c\u1ea3 hai tr\u1ee5c \u0111\u1ed9ng c\u01a1<\/li>\n\n\n\n<li>B\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf c\u1ea3 hai \u0111\u1ea7u tr\u1ed1ng<\/li>\n\n\n\n<li>C\u00f4ng t\u1eafc qu\u00e1 t\u1ed1c \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf c\u1ea3 hai \u0111\u1ea7u tang tr\u1ed1ng<\/li>\n<\/ul>\n\n\n\n<p>B\u1ed9 m\u00e3 h\u00f3a gia t\u0103ng tr\u00ean tr\u1ee5c t\u1ed1c \u0111\u1ed9 cao v\u00e0 t\u1ed1c \u0111\u1ed9 th\u1ea5p t\u1ea1o ra m\u1ed9t s\u1ed1 xung kh\u00f4ng \u0111\u1ed5i tr\u00ean m\u1ed7i v\u00f2ng quay, t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 v\u00e0 t\u1ed1c \u0111\u1ed9 tr\u1ed1ng. C\u00e1c b\u1ed9 m\u00e3 h\u00f3a n\u00e0y t\u1ea1o th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n v\u00e0 \u0111i\u1ec1u khi\u1ec3n v\u1edbi PLC. S\u1ed1 xung c\u1ee7a b\u1ed9 m\u00e3 h\u00f3a \u0111\u01b0\u1ee3c nh\u1eadp v\u00e0o PLC \u0111\u1ec3 t\u00ednh to\u00e1n v\u00e0 b\u1eb1ng c\u00e1ch so s\u00e1nh c\u00e1c xung tr\u00ean tr\u1ee5c t\u1ed1c \u0111\u1ed9 cao v\u00e0 t\u1ed1c \u0111\u1ed9 th\u1ea5p, h\u1ec7 th\u1ed1ng x\u00e1c minh xem chu\u1ed7i truy\u1ec1n \u0111\u1ed9ng c\u1ee7a c\u01a1 c\u1ea5u n\u00e2ng c\u00f3 b\u00ecnh th\u01b0\u1eddng kh\u00f4ng. C\u00e1c c\u00f4ng t\u1eafc qu\u00e1 t\u1ed1c theo d\u00f5i xem t\u1ed1c \u0111\u1ed9 quay c\u1ee7a tr\u1ed1ng c\u00f3 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n an to\u00e0n \u0111\u00e3 \u0111\u1eb7t hay kh\u00f4ng. N\u1ebfu x\u1ea3y ra \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh b\u1ea5t th\u01b0\u1eddng, h\u1ec7 th\u1ed1ng s\u1ebd ph\u00e1t hi\u1ec7n l\u1ed7i v\u00e0 th\u1ef1c hi\u1ec7n h\u00e0nh \u0111\u1ed9ng.<\/p>","protected":false},"excerpt":{"rendered":"C\u1ea7n tr\u1ee5c g\u1ea7u m\u00fac l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh \u0111\u00fac v\u00e0 c\u00e1n th\u00e9p li\u00ean t\u1ee5c, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng chuy\u00ean bi\u1ec7t \u0111\u1ec3 n\u00e2ng kim lo\u1ea1i n\u00f3ng ch\u1ea3y. N\u1ebfu x\u1ea3y ra tai n\u1ea1n l\u1edbn, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng, bao g\u1ed3m th\u01b0\u01a1ng vong v\u00e0 h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb. C\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 an to\u00e0n c\u1ee7a c\u1ea7n tr\u1ee5c l\u00e0 thi\u1ebft b\u1ecb thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u1ed1n c\u00f3 c\u1ee7a n\u00f3, ho\u1ea1t \u0111\u1ed9ng [\u2026]","protected":false},"featured_media":10212,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[351],"posts_tag":[724,723],"class_list":["post-10206","posts","type-posts","status-publish","has-post-thumbnail","hentry","posts_category-blog","posts_tag-ladle-cranes","posts_tag-safety-protection-devices"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/10206"}],"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":15,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/10206\/revisions"}],"predecessor-version":[{"id":10316,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/10206\/revisions\/10316"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/media\/10212"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/media?parent=10206"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/posts_category?post=10206"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/vi\/wp-json\/wp\/v2\/posts_tag?post=10206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}