{"id":878,"date":"2026-06-25T01:55:35","date_gmt":"2026-06-25T01:55:35","guid":{"rendered":"https:\/\/oldhamcoupling.net\/5-mistakes-engineers-make-when-selecting-a-flexible-coupling-and-how-to-avoid-them\/"},"modified":"2026-06-25T01:55:35","modified_gmt":"2026-06-25T01:55:35","slug":"5-mistakes-engineers-make-when-selecting-a-flexible-coupling-and-how-to-avoid-them","status":"publish","type":"post","link":"https:\/\/oldhamcoupling.net\/vi\/5-mistakes-engineers-make-when-selecting-a-flexible-coupling-and-how-to-avoid-them\/","title":{"rendered":"5 sai l\u1ea7m m\u00e0 c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng m\u1eafc ph\u1ea3i khi l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i m\u1ec1m (v\u00e0 c\u00e1ch tr\u00e1nh ch\u00fang)"},"content":{"rendered":"

Vi\u1ec7c l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i m\u1ec1m tho\u1ea1t nh\u00ecn c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n \u2014 ch\u1ec9 c\u1ea7n t\u00ecm lo\u1ea1i c\u00f3 k\u00edch th\u01b0\u1edbc l\u1ed7 ph\u00f9 h\u1ee3p, x\u00e1c nh\u1eadn m\u00f4-men xo\u1eafn \u0111\u1ecbnh m\u1ee9c l\u00e0 \u0111\u1ee7, r\u1ed3i ti\u1ebfp t\u1ee5c. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y l\u1ea1i g\u00e2y ra m\u1ed9t t\u1ef7 l\u1ec7 \u0111\u00e1ng k\u1ec3 c\u00e1c s\u1ef1 c\u1ed1 h\u1ecfng kh\u1edbp n\u1ed1i s\u1edbm, tu\u1ed5i th\u1ecd \u1ed5 tr\u1ee5c b\u1ecb r\u00fat ng\u1eafn v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111i\u1ec1u ch\u1ec9nh servo m\u00e0 c\u00e1c k\u1ef9 s\u01b0 b\u1ea3o tr\u00ec v\u00e0 chuy\u00ean gia \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng g\u1eb7p ph\u1ea3i trong th\u1ef1c t\u1ebf. Nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 do kh\u1edbp n\u1ed1i b\u1ecb l\u1ed7i \u2014 m\u00e0 l\u00e0 do kh\u1edbp n\u1ed1i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u0111\u00fang c\u00e1ch nh\u01b0ng l\u1ea1i kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3.<\/p>\n

B\u00e0i vi\u1ebft n\u00e0y x\u00e1c \u0111\u1ecbnh n\u0103m l\u1ed7i k\u1ef9 thu\u1eadt ph\u1ed5 bi\u1ebfn nh\u1ea5t trong vi\u1ec7c l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i m\u1ec1m, gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao m\u1ed7i l\u1ed7i d\u1eabn \u0111\u1ebfn ki\u1ec3u h\u1ecfng h\u00f3c t\u01b0\u01a1ng \u1ee9ng v\u00e0 cung c\u1ea5p ph\u01b0\u01a1ng ph\u00e1p kh\u1eafc ph\u1ee5c \u0111\u1ec3 ng\u0103n ng\u1eeba ch\u00fang. Tr\u1ecdng t\u00e2m l\u00e0 c\u00e1c kh\u1edbp n\u1ed1i kh\u00f4ng c\u00f3 khe h\u1edf \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1edbp n\u1ed1i Oldham \u2014 trong c\u00e1c \u1ee9ng d\u1ee5ng chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u00e0 truy\u1ec1n \u0111\u1ed9ng servo, n\u01a1i c\u00e1c l\u1ed7i l\u1ef1a ch\u1ecdn c\u00f3 h\u1eadu qu\u1ea3 t\u1ee9c th\u1eddi v\u00e0 d\u1ec5 \u0111o l\u01b0\u1eddng nh\u1ea5t.<\/p>\n

\n \"H\u01b0\u1edbng
H\u1ea7u h\u1ebft c\u00e1c s\u1ef1 c\u1ed1 h\u1ecfng kh\u1edbp n\u1ed1i m\u1ec1m trong th\u1ef1c t\u1ebf \u0111\u1ec1u b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng l\u1ed7i sai s\u00f3t trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf \u2014 vi\u1ec7c hi\u1ec3u r\u00f5 n\u0103m l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t s\u1ebd gi\u00fap lo\u1ea1i b\u1ecf ph\u1ea7n l\u1edbn c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn kh\u1edbp n\u1ed1i c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c.<\/figcaption><\/figure>\n

Sai l\u1ea7m 1: Ch\u1ecdn kh\u1edbp n\u1ed1i d\u1ef1a tr\u00ean lo\u1ea1i sai l\u1ec7ch kh\u00f4ng ph\u00f9 h\u1ee3p<\/h2>\n

\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra:<\/strong> M\u1ed9t k\u1ef9 s\u01b0 ch\u1ec9 \u0111\u1ecbnh kh\u1edbp n\u1ed1i Oldham cho m\u1ed9t \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u00f3 \u0111\u1ed9 l\u1ec7ch g\u00f3c \u0111\u00e1ng k\u1ec3. Kh\u1edbp n\u1ed1i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t, \u0111\u0129a b\u1ecb k\u1eb9t kh\u00f4ng li\u00ean t\u1ee5c \u1edf m\u1ed9t s\u1ed1 v\u1ecb tr\u00ed quay nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ed9 m\u00e0i m\u00f2n c\u1ee7a \u0111\u0129a t\u0103ng nhanh, t\u1ea3i tr\u1ecdng \u1ed5 tr\u1ee5c t\u0103ng l\u00ean, v\u00e0 m\u00e1y ph\u00e1t sinh rung \u0111\u1ed9ng v\u00e0 ti\u1ebfng \u1ed3n \u1edf t\u1ea7n s\u1ed1 quay c\u1ee7a kh\u1edbp n\u1ed1i. S\u1ef1 c\u1ed1 n\u00e0y tho\u1ea1t nh\u00ecn c\u00f3 v\u1ebb l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng kh\u1edbp n\u1ed1i nh\u01b0ng th\u1ef1c ch\u1ea5t l\u1ea1i l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 l\u1ef1a ch\u1ecdn.<\/p>\n

L\u00fd do t\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra:<\/strong> C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng kh\u00f4ng ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng gi\u1eefa \u0111\u1ed9 l\u1ec7ch ngang (song song) v\u00e0 \u0111\u1ed9 l\u1ec7ch g\u00f3c khi m\u00f4 t\u1ea3 \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ecd. C\u00e2u n\u00f3i \u201cC\u00e1c tr\u1ee5c kh\u00f4ng th\u1eb3ng h\u00e0ng\u201d m\u00f4 t\u1ea3 m\u1ed9t t\u00ecnh hu\u1ed1ng, nh\u01b0ng kh\u00f4ng ch\u1ec9 r\u00f5 lo\u1ea1i l\u1ec7ch n\u00e0o \u0111ang x\u1ea3y ra. C\u00e1c lo\u1ea1i kh\u1edbp n\u1ed1i kh\u00e1c nhau c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c lo\u1ea1i l\u1ec7ch kh\u00e1c nhau, v\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00e0 kh\u00f4ng ph\u00e2n bi\u1ec7t r\u00f5 \u0111i\u1ec1u n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p gi\u1eefa kh\u1ea3 n\u0103ng thi\u1ebft k\u1ebf c\u1ee7a kh\u1edbp n\u1ed1i v\u00e0 nhu c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n

C\u00e1ch tr\u00e1nh \u0111i\u1ec1u \u0111\u00f3:<\/strong> Tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn b\u1ea5t k\u1ef3 kh\u1edbp n\u1ed1i n\u00e0o, c\u1ea7n \u0111o ho\u1eb7c t\u00ednh to\u00e1n ri\u00eang bi\u1ec7t c\u1ea3 hai lo\u1ea1i sai l\u1ec7ch. Sai l\u1ec7ch ngang l\u00e0 kho\u1ea3ng c\u00e1ch vu\u00f4ng g\u00f3c gi\u1eefa hai \u0111\u01b0\u1eddng t\u00e2m tr\u1ee5c \u2014 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111\u1ed9 l\u1ec7ch ho\u1eb7c th\u01b0\u1edbc th\u1eb3ng. Sai l\u1ec7ch g\u00f3c l\u00e0 g\u00f3c gi\u1eefa hai \u0111\u01b0\u1eddng t\u00e2m tr\u1ee5c \u2014 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng c\u00e1ch qu\u00e9t \u0111\u1ed3ng h\u1ed3 \u0111o \u0111\u1ed9 l\u1ec7ch tr\u00ean m\u1eb7t b\u00edch \u0111\u1ed9ng c\u01a1, v\u1edbi kim ch\u1ec9 th\u1ecb \u0111\u01b0\u1ee3c tham chi\u1ebfu \u0111\u1ebfn v\u1ecf tr\u1ee5c d\u1eabn \u0111\u1ed9ng.<\/p>\n

N\u1ebfu \u0111\u1ed9 l\u1ec7ch ngang chi\u1ebfm \u01b0u th\u1ebf (l\u1edbn h\u01a1n 0,2 mm) v\u00e0 sai s\u1ed1 g\u00f3c nh\u1ecf (d\u01b0\u1edbi 0,5 \u0111\u1ed9), h\u00e3y ch\u1ec9 \u0111\u1ecbnh kh\u1edbp n\u1ed1i Oldham. N\u1ebfu sai l\u1ec7ch g\u00f3c chi\u1ebfm \u01b0u th\u1ebf, h\u00e3y ch\u1ec9 \u0111\u1ecbnh kh\u1edbp n\u1ed1i d\u1ea1ng \u1ed1ng x\u1ebfp ho\u1eb7c d\u1ea1ng thanh. N\u1ebfu c\u1ea3 hai \u0111\u1ec1u \u0111\u00e1ng k\u1ec3, h\u00e3y hi\u1ec7u ch\u1ec9nh sai s\u1ed1 g\u00f3c b\u1eb1ng c\u01a1 h\u1ecdc tr\u01b0\u1edbc, sau \u0111\u00f3 m\u1edbi ch\u1ec9 \u0111\u1ecbnh kh\u1edbp n\u1ed1i cho \u0111\u1ed9 l\u1ec7ch ngang c\u00f2n l\u1ea1i.<\/p>\n

Sai l\u1ea7m 2: Ch\u1ec9 d\u1ef1a v\u00e0o m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c \u0111\u1ec3 l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc, b\u1ecf qua m\u00f4-men xo\u1eafn \u0111\u1ed9ng c\u1ef1c \u0111\u1ea1i.<\/h2>\n

\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra:<\/strong> K\u1ef9 s\u01b0 l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i c\u00f3 c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c b\u1eb1ng m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c ghi tr\u00ean nh\u00e3n \u0111\u1ed9ng c\u01a1 v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n 1,25\u00d7. Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, \u0111\u1ed9ng c\u01a1 servo th\u01b0\u1eddng xuy\u00ean t\u1ea1o ra m\u00f4-men xo\u1eafn g\u1ea5p 3 \u0111\u1ebfn 4 l\u1ea7n m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c trong qu\u00e1 tr\u00ecnh t\u0103ng t\u1ed1c nhanh v\u00e0 d\u1eebng kh\u1ea9n c\u1ea5p. \u0110\u0129a b\u1ecb v\u1ee1 d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng d\u1eebng \u0111\u1ed9t ng\u1ed9t \u0111\u1ea7u ti\u00ean, ho\u1eb7c ph\u00e1t sinh \u0111\u1ed9 r\u01a1 t\u0103ng d\u1ea7n do qu\u00e1 t\u1ea3i chu k\u1ef3 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n m\u1ecfi c\u1ee7a \u0111\u0129a ch\u1ec9 trong v\u00f2ng v\u00e0i tu\u1ea7n sau khi v\u1eadn h\u00e0nh.<\/p>\n

L\u00fd do t\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra:<\/strong> Th\u00f4ng s\u1ed1 m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c l\u00e0 th\u00f4ng s\u1ed1 xu\u1ea5t hi\u1ec7n tr\u00ean b\u1ea3ng d\u1eef li\u1ec7u \u0111\u1ed9ng c\u01a1 v\u00e0 l\u00e0 nh\u1eefng con s\u1ed1 d\u1ec5 th\u1ea5y nh\u1ea5t trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng. M\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i \u2014 m\u00e0 \u0111\u1ed9ng c\u01a1 servo c\u00f3 th\u1ec3 cung c\u1ea5p trong th\u1eddi gian ng\u1eafn \u1edf m\u1ee9c g\u1ea5p 2 \u0111\u1ebfn 5 l\u1ea7n th\u00f4ng s\u1ed1 li\u00ean t\u1ee5c \u2014 th\u01b0\u1eddng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea tr\u00ean m\u1ed9t trang ri\u00eang ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c xem x\u00e9t trong qu\u00e1 tr\u00ecnh l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i. Kh\u1edbp n\u1ed1i ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i, ch\u1ee9 kh\u00f4ng ch\u1ec9 gi\u00e1 tr\u1ecb trung b\u00ecnh.<\/p>\n

C\u00e1ch tr\u00e1nh \u0111i\u1ec1u \u0111\u00f3:<\/strong> Lu\u00f4n s\u1eed d\u1ee5ng m\u00f4-men xo\u1eafn \u0111\u1ed9ng c\u1ef1c \u0111\u1ea1i l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 l\u1ef1a ch\u1ecdn kh\u1edbp n\u1ed1i. X\u00e1c \u0111\u1ecbnh m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i c\u1ee7a \u0111\u1ed9ng c\u01a1 t\u1eeb b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, nh\u00e2n v\u1edbi h\u1ec7 s\u1ed1 v\u1eadn h\u00e0nh c\u1ee7a \u1ee9ng d\u1ee5ng (2,0 \u0111\u1ebfn 3,0 \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng servo c\u00f3 t\u1ea7n su\u1ea5t \u0111\u1ea3o chi\u1ec1u cao h\u01a1n), v\u00e0 ch\u1ecdn kh\u1edbp n\u1ed1i c\u00f3 \u0111\u1ecbnh m\u1ee9c m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c b\u1eb1ng ho\u1eb7c l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf n\u00e0y. Khi \u0111\u00f3, kh\u1edbp n\u1ed1i s\u1ebd ho\u1ea1t \u0111\u1ed9ng tho\u1ea3i m\u00e1i d\u01b0\u1edbi gi\u1edbi h\u1ea1n c\u1ee7a n\u00f3 trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng, v\u1edbi c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c \u0111\u1ea7y \u0111\u1ee7 s\u1eb5n s\u00e0ng cho c\u00e1c s\u1ef1 ki\u1ec7n c\u1ef1c \u0111\u1ea1i.<\/p>\n

\n
\n\n\n\n\n\n\n\n\n
Lo\u1ea1i \u1ee9ng d\u1ee5ng<\/th>\nY\u1ebfu t\u1ed1 d\u1ecbch v\u1ee5 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/th>\nC\u01a1 s\u1edf m\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf<\/th>\n<\/tr>\n<\/thead>\n
B\u1ed9 m\u00e3 h\u00f3a \/ ph\u1ea3n h\u1ed3i m\u00f4-men xo\u1eafn th\u1ea5p<\/td>\n1.5<\/td>\nM\u00f4-men xo\u1eafn li\u00ean t\u1ee5c c\u1ee7a \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n
\u0110\u1ed9ng c\u01a1 servo, \u0111\u1ecbnh v\u1ecb m\u01b0\u1ee3t m\u00e0<\/td>\n2.0<\/td>\nM\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i c\u1ee7a \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n
\u0110\u1ed9ng c\u01a1 servo chu k\u1ef3 cao v\u1edbi ch\u1ee9c n\u0103ng \u0111\u1ea3o chi\u1ec1u<\/td>\n2,5\u20133,0<\/td>\nM\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i c\u1ee7a \u0111\u1ed9ng c\u01a1<\/td>\n<\/tr>\n
C\u00f4ng nghi\u1ec7p v\u1edbi t\u1ea3i tr\u1ecdng va \u0111\u1eadp<\/td>\n3.0\u20134.0<\/td>\nM\u00f4men xo\u1eafn c\u1ef1c \u0111\u1ea1i \u01b0\u1edbc t\u00ednh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Sai l\u1ea7m 3: S\u1eed d\u1ee5ng c\u00e1c tr\u1ee5c v\u00edt \u0111\u1ecbnh v\u1ecb trong c\u00e1c \u1ee9ng d\u1ee5ng servo \u0111\u1ea3o chi\u1ec1u cao.<\/h2>\n

\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra:<\/strong> Tr\u1ee5c servo \u0111\u01b0\u1ee3c v\u1eadn h\u00e0nh th\u1eed v\u00e0 d\u01b0\u1eddng nh\u01b0 \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c. Tuy nhi\u00ean, sau v\u00e0i tu\u1ea7n ho\u1eb7c v\u00e0i th\u00e1ng, v\u1ecb tr\u00ed ban \u0111\u1ea7u d\u1ecbch chuy\u1ec3n nh\u1eb9, \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb gi\u1ea3m d\u1ea7n v\u00e0 m\u00e1y c\u1ea7n ph\u1ea3i \u0111\u1ecbnh v\u1ecb l\u1ea1i th\u01b0\u1eddng xuy\u00ean h\u01a1n. Qu\u00e1 tr\u00ecnh \u0111i\u1ec1u tra cho th\u1ea5y m\u1ed9t ho\u1eb7c c\u1ea3 hai kh\u1edbp n\u1ed1i \u0111\u00e3 xoay nh\u1eb9 tr\u00ean tr\u1ee5c c\u1ee7a ch\u00fang - m\u1ed1i quan h\u1ec7 g\u00f3c gi\u1eefa kh\u1edbp n\u1ed1i v\u00e0 tr\u1ee5c \u0111\u00e3 l\u1ec7ch kh\u1ecfi v\u1ecb tr\u00ed ban \u0111\u1ea7u. \u0110\u0129a kh\u1edbp n\u1ed1i kh\u00f4ng b\u1ecb m\u00f2n; c\u00e1c kh\u1edbp n\u1ed1i \u0111\u00e3 b\u1ecb tr\u01b0\u1ee3t.<\/p>\n

L\u00fd do t\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra:<\/strong> C\u00e1c kh\u1edbp n\u1ed1i v\u00edt \u0111\u1ecbnh v\u1ecb k\u1eb9p ch\u1eb7t tr\u1ee5c t\u1ea1i m\u1ed9t \u0111i\u1ec3m ti\u1ebfp x\u00fac duy nh\u1ea5t. D\u01b0\u1edbi c\u00e1c chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ea3o chi\u1ec1u m\u00f4-men xo\u1eafn t\u1ea7n s\u1ed1 cao \u2014 x\u1ea3y ra trong m\u1ed7i chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ecbnh v\u1ecb c\u1ee7a servo \u2014 c\u00e1c l\u1ef1c si\u00eau nh\u1ecf l\u1eb7p \u0111i l\u1eb7p l\u1ea1i \u1edf m\u1ed7i l\u1ea7n \u0111\u1ea3o chi\u1ec1u d\u1ea7n d\u1ea7n v\u01b0\u1ee3t qua ma s\u00e1t t\u0129nh c\u1ee7a \u0111i\u1ec3m ti\u1ebfp x\u00fac gi\u1eefa v\u00edt \u0111\u1ecbnh v\u1ecb v\u00e0 tr\u1ee5c. M\u1ed7i l\u1ea7n tr\u01b0\u1ee3t ri\u00eang l\u1ebb qu\u00e1 nh\u1ecf \u0111\u1ec3 ph\u00e1t hi\u1ec7n, nh\u01b0ng s\u1ef1 t\u00edch l\u0169y c\u1ee7a h\u00e0ng tri\u1ec7u l\u1ea7n tr\u01b0\u1ee3t si\u00eau nh\u1ecf trong nhi\u1ec1u tu\u1ea7n ho\u1ea1t \u0111\u1ed9ng s\u1ebd t\u1ea1o th\u00e0nh m\u1ed9t \u0111\u1ed9 l\u1ec7ch g\u00f3c c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c gi\u1eefa v\u1ecb tr\u00ed b\u1ed9 m\u00e3 h\u00f3a \u0111\u1ed9ng c\u01a1 v\u00e0 v\u1ecb tr\u00ed th\u1ef1c t\u1ebf c\u1ee7a m\u00e1y.<\/p>\n

C\u00e1ch tr\u00e1nh \u0111i\u1ec1u \u0111\u00f3:<\/strong> H\u00e3y ch\u1ec9 \u0111\u1ecbnh s\u1eed d\u1ee5ng kh\u1edbp n\u1ed1i k\u1eb9p (kh\u1edbp n\u1ed1i c\u00f3 l\u1ed7 chia) cho t\u1ea5t c\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng kh\u1edbp n\u1ed1i \u0111\u1ed9ng c\u01a1 servo v\u00e0 \u0111\u1ed9ng c\u01a1 b\u01b0\u1edbc c\u00f3 s\u1ef1 \u0111\u1ea3o chi\u1ec1u quay. Kh\u1edbp n\u1ed1i k\u1eb9p t\u1ea1o l\u1ef1c k\u1eb9p chu vi 360 \u0111\u1ed9 l\u00ean tr\u1ee5c, cung c\u1ea5p m\u00f4-men xo\u1eafn tr\u01b0\u1ee3t cao h\u01a1n t\u1eeb 30 \u0111\u1ebfn 60% so v\u1edbi kh\u1edbp n\u1ed1i v\u00edt \u0111\u1ecbnh v\u1ecb c\u00f9ng k\u00edch th\u01b0\u1edbc. Bi\u00ean \u0111\u1ed9 n\u00e0y v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1eb3n l\u1ef1c tr\u01b0\u1ee3t nh\u1ecf do s\u1ef1 \u0111\u1ea3o chi\u1ec1u m\u00f4-men xo\u1eafn servo t\u1ea1o ra, duy tr\u00ec m\u1ed1i quan h\u1ec7 g\u00f3c gi\u1eefa kh\u1edbp n\u1ed1i v\u00e0 tr\u1ee5c trong su\u1ed1t v\u00f2ng \u0111\u1eddi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a kh\u1edbp n\u1ed1i. Ch\u1ec9 n\u00ean s\u1eed d\u1ee5ng kh\u1edbp n\u1ed1i v\u00edt \u0111\u1ecbnh v\u1ecb cho c\u00e1c \u1ee9ng d\u1ee5ng m\u1ed9t chi\u1ec1u ho\u1eb7c chu k\u1ef3 r\u1ea5t th\u1ea5p.<\/p>\n

Sai l\u1ea7m 4: B\u1ecf qua qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i trong h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng servo<\/h2>\n

\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra:<\/strong> Tr\u1ee5c servo \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c v\u1ec1 \u0111\u1ed9ng c\u01a1, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n v\u00e0 t\u1ea3i c\u01a1 kh\u00ed. Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh th\u1eed, servo kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ebfn b\u0103ng th\u00f4ng mong mu\u1ed1n \u2014 vi\u1ec7c t\u0103ng h\u1ec7 s\u1ed1 khu\u1ebfch \u0111\u1ea1i g\u00e2y ra s\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh, v\u00e0 b\u0103ng th\u00f4ng t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u1ea5p h\u01a1n so v\u1edbi y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng. Vi\u1ec7c t\u00ednh to\u00e1n qu\u00e1n t\u00ednh t\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra l\u1ea1i v\u00e0 th\u1ea5y l\u00e0 ch\u00ednh x\u00e1c. Qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o t\u00ednh to\u00e1n, v\u00e0 h\u00f3a ra n\u00f3 chi\u1ebfm 18% qu\u00e1n t\u00ednh r\u00f4to c\u1ee7a \u0111\u1ed9ng c\u01a1 \u2014 cao h\u01a1n nhi\u1ec1u so v\u1edbi gi\u1edbi h\u1ea1n 10% \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9ng l\u1ef1c h\u1ecdc servo t\u1ed1t.<\/p>\n

L\u00fd do t\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra:<\/strong> Qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i hi\u1ebfm khi \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea r\u00f5 r\u00e0ng trong c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u1edbp n\u1ed1i v\u00e0 r\u1ea5t d\u1ec5 b\u1ecb b\u1ecf qua trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng servo. N\u00f3 \u0111\u00f3ng g\u00f3p tr\u1ef1c ti\u1ebfp v\u00e0o t\u1ed5ng qu\u00e1n t\u00ednh ph\u1ea3n h\u1ed3i t\u1ea1i tr\u1ee5c \u0111\u1ed9ng c\u01a1, l\u00e0m t\u0103ng t\u1ef7 s\u1ed1 qu\u00e1n t\u00ednh (qu\u00e1n t\u00ednh t\u1ea3i chia cho qu\u00e1n t\u00ednh \u0111\u1ed9ng c\u01a1) v\u01b0\u1ee3t qu\u00e1 m\u1ee9c m\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n servo \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho. T\u1ef7 s\u1ed1 qu\u00e1n t\u00ednh cao s\u1ebd h\u1ea1n ch\u1ebf b\u0103ng th\u00f4ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c, khi\u1ebfn servo ho\u1ea1t \u0111\u1ed9ng ch\u1eadm ch\u1ea1p v\u00e0 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng trong vi\u1ec7c theo d\u00f5i c\u00e1c l\u1ec7nh v\u1ecb tr\u00ed thay \u0111\u1ed5i nhanh ch\u00f3ng.<\/p>\n

C\u00e1ch tr\u00e1nh \u0111i\u1ec1u \u0111\u00f3:<\/strong> Lu\u00f4n lu\u00f4n t\u00ednh \u0111\u1ebfn qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i trong t\u1ed5ng qu\u00e1n t\u00ednh ph\u1ea3n x\u1ea1 khi thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng servo. L\u1ea5y gi\u00e1 tr\u1ecb qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i (t\u00ednh b\u1eb1ng g\u00b7cm\u00b2 ho\u1eb7c kg\u00b7m\u00b2) t\u1eeb b\u1ea3ng d\u1eef li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u2014 kh\u00f4ng n\u00ean \u01b0\u1edbc t\u00ednh ch\u1ec9 d\u1ef1a tr\u00ean kh\u1ed1i l\u01b0\u1ee3ng. \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng gia t\u1ed1c cao, h\u00e3y gi\u1eef qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i d\u01b0\u1edbi 5% qu\u00e1n t\u00ednh r\u00f4to \u0111\u1ed9ng c\u01a1. \u0110\u1ed1i v\u1edbi c\u00e1c tr\u1ee5c servo ti\u00eau chu\u1ea9n, 10% l\u00e0 gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf. N\u1ebfu kh\u1edbp n\u1ed1i \u0111\u01b0\u1ee3c ch\u1ecdn v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n n\u00e0y, h\u00e3y ch\u1ecdn \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i kh\u1edbp n\u1ed1i nh\u1ecf h\u01a1n (\u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m qu\u00e1n t\u00ednh \u0111\u00e1ng k\u1ec3), ch\u1ec9 \u0111\u1ecbnh c\u00e1c tr\u1ee5c b\u1eb1ng nh\u00f4m thay v\u00ec th\u00e9p, ho\u1eb7c \u0111\u00e1nh gi\u00e1 xem lo\u1ea1i kh\u1edbp n\u1ed1i nh\u1eb9 h\u01a1n c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn hay kh\u00f4ng.<\/p>\n

\n \"l\u1ef1a
Qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i l\u00e0m t\u0103ng tr\u1ef1c ti\u1ebfp t\u1ea3i tr\u1ecdng ph\u1ea3n h\u1ed3i c\u1ee7a servo \u2014 v\u01b0\u1ee3t qu\u00e1 10% qu\u00e1n t\u00ednh r\u00f4to \u0111\u1ed9ng c\u01a1 s\u1ebd gi\u1edbi h\u1ea1n b\u0103ng th\u00f4ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u00e0 g\u00e2y kh\u00f3 kh\u0103n trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh, m\u1ed9t v\u1ea5n \u0111\u1ec1 hi\u1ebfm khi \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 do kh\u1edbp n\u1ed1i trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh th\u1eed.<\/figcaption><\/figure>\n

L\u1ed7i 5: L\u1eafp kh\u1edbp n\u1ed1i m\u00e0 kh\u00f4ng ki\u1ec3m tra ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 th\u1eb3ng h\u00e0ng<\/h2>\n

\u0110i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra:<\/strong> Kh\u1edbp n\u1ed1i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t m\u00e0 kh\u00f4ng c\u1ea7n \u0111o \u0111\u1ed9 th\u1eb3ng h\u00e0ng c\u1ee7a tr\u1ee5c, v\u1edbi gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng dung sai l\u1ec7ch tr\u1ee5c c\u1ee7a kh\u1edbp n\u1ed1i Oldham c\u00f3 ngh\u0129a l\u00e0 \u0111\u1ed9 th\u1eb3ng h\u00e0ng kh\u00f4ng quan tr\u1ecdng. \u0110\u0129a b\u1ecb m\u00f2n ch\u1ec9 trong m\u1ed9t ph\u1ea7n nh\u1ecf tu\u1ed5i th\u1ecd d\u1ef1 ki\u1ebfn. Nhi\u1ec7t \u0111\u1ed9 \u1ed5 tr\u1ee5c cao h\u01a1n b\u00ecnh th\u01b0\u1eddng. M\u00e1y ph\u00e1t sinh rung \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 quay c\u1ee7a kh\u1edbp n\u1ed1i. C\u1ea7n thay \u0111\u0129a v\u00e0i th\u00e1ng m\u1ed9t l\u1ea7n thay v\u00ec v\u00e0i n\u0103m m\u1ed9t l\u1ea7n.<\/p>\n

L\u00fd do t\u1ea1i sao \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra:<\/strong> Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng \u0111\u1ed9 l\u1ec7ch c\u1ee7a kh\u1edbp n\u1ed1i Oldham th\u1ef1c s\u1ef1 \u1ea5n t\u01b0\u1ee3ng \u2014 n\u00f3 c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u1ed9 l\u1ec7ch l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c kh\u1edbp n\u1ed1i d\u1ea1ng \u1ed1ng x\u1ebfp ho\u1eb7c d\u1ea1ng d\u1ea7m m\u00e0 kh\u00f4ng b\u1ecb h\u1ecfng. Kh\u1ea3 n\u0103ng n\u00e0y khi\u1ebfn m\u1ed9t s\u1ed1 k\u1ef9 s\u01b0 coi n\u00f3 nh\u01b0 m\u1ed9t thi\u1ebft b\u1ecb b\u00f9 l\u1ec7ch \u0111a n\u0103ng: ch\u1ec9 c\u1ea7n l\u1eafp \u0111\u1eb7t v\u00e0 \u0111\u1ec3 n\u00f3 t\u1ef1 x\u1eed l\u00fd m\u1ecdi \u0111\u1ed9 l\u1ec7ch hi\u1ec7n c\u00f3. \u0110i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n hi\u1ec3u sai m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111\u1ed9 l\u1ec7ch v\u00e0 t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n \u0111\u0129a. T\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi b\u00ecnh ph\u01b0\u01a1ng bi\u00ean \u0111\u1ed9 l\u1ec7ch. M\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf m\u1ee9c 80% \u0111\u1ed9 l\u1ec7ch t\u1ed1i \u0111a s\u1ebd l\u00e0m m\u00f2n \u0111\u0129a nhanh h\u01a1n 16 l\u1ea7n so v\u1edbi h\u1ec7 th\u1ed1ng \u1edf m\u1ee9c 20% c\u00f9ng m\u1ee9c \u0111\u1ed9 l\u1ec7ch \u0111\u00f3. Kh\u1edbp n\u1ed1i ch\u1ecbu \u0111\u01b0\u1ee3c \u0111\u1ed9 l\u1ec7ch \u2014 nh\u01b0ng v\u1edbi c\u00e1i gi\u00e1 r\u1ea5t \u0111\u1eaft l\u00e0 tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng b\u1ecb gi\u1ea3m \u0111i.<\/p>\n

C\u00e1ch tr\u00e1nh \u0111i\u1ec1u \u0111\u00f3:<\/strong> Lu\u00f4n \u0111o \u0111\u1ea1c v\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 l\u1ec7ch tr\u1ee5c tr\u01b0\u1edbc khi l\u1eafp kh\u1edbp n\u1ed1i, b\u1ea5t k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ec7ch \u0111\u1ecbnh m\u1ee9c c\u1ee7a kh\u1edbp n\u1ed1i l\u00e0 bao nhi\u00eau. M\u1ee5c ti\u00eau l\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u0103n ch\u1ec9nh t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3 trong ph\u1ea1m vi \u0111i\u1ec1u ch\u1ec9nh cho ph\u00e9p, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 x\u00e1c minh r\u1eb1ng \u0111\u1ed9 l\u1ec7ch n\u1eb1m trong gi\u1edbi h\u1ea1n \u0111\u1ecbnh m\u1ee9c c\u1ee7a kh\u1edbp n\u1ed1i. Th\u1eddi gian \u0111\u1ea7u t\u01b0 v\u00e0o vi\u1ec7c c\u0103n ch\u1ec9nh \u2014 th\u01b0\u1eddng t\u1eeb 30 \u0111\u1ebfn 60 ph\u00fat cho k\u1ebft n\u1ed1i \u0111\u1ed9ng c\u01a1 v\u1edbi tr\u1ee5c v\u00edt bi \u2014 s\u1ebd mang l\u1ea1i th\u00eam nhi\u1ec1u n\u0103m tu\u1ed5i th\u1ecd cho \u0111\u0129a ly h\u1ee3p. S\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ed3ng h\u1ed3 \u0111o \u0111\u1ed9 l\u1ec7ch nh\u01b0 m\u00f4 t\u1ea3 trong h\u01b0\u1edbng d\u1eabn c\u0103n ch\u1ec9nh, v\u00e0 ki\u1ec3m tra l\u1ea1i \u0111\u1ed9 l\u1ec7ch sau khi m\u00e1y \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

T\u00e1c \u0111\u1ed9ng t\u00edch l\u0169y c\u1ee7a nhi\u1ec1u sai l\u1ea7m<\/h2>\n

Tr\u00ean th\u1ef1c t\u1ebf, h\u1ecfng kh\u1edbp n\u1ed1i hi\u1ebfm khi ch\u1ec9 do m\u1ed9t l\u1ed7i k\u1ef9 thu\u1eadt duy nh\u1ea5t g\u00e2y ra. Th\u00f4ng th\u01b0\u1eddng h\u01a1n, hai ho\u1eb7c ba l\u1ed7i n\u00eau tr\u00ean x\u1ea3y ra \u0111\u1ed3ng th\u1eddi. M\u1ed9t kh\u1edbp n\u1ed1i c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n ti\u00eau chu\u1ea9n, \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t m\u00e0 kh\u00f4ng c\u0103n ch\u1ec9nh trong \u1ee9ng d\u1ee5ng servo chu k\u1ef3 cao, c\u00f3 th\u1ec3 h\u1ecfng trong v\u00f2ng v\u00e0i tu\u1ea7n. C\u00f9ng m\u1ed9t kh\u1edbp n\u1ed1i \u0111\u00f3, n\u1ebfu \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o \u0111\u00fang k\u00edch th\u01b0\u1edbc cho m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i, \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c tr\u1ee5c k\u1eb9p v\u00e0 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u1edbi s\u1ef1 c\u0103n ch\u1ec9nh t\u1ed1t, n\u00f3 s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c nhi\u1ec1u n\u0103m. M\u1ed7i l\u1ed7i \u0111\u1ec1u l\u00e0m tr\u1ea7m tr\u1ecdng th\u00eam c\u00e1c l\u1ed7i kh\u00e1c \u2014 m\u1ed9t kh\u1edbp n\u1ed1i \u0111\u00e3 b\u1ecb qu\u00e1 t\u1ea3i do \u0111\u1ed9 l\u1ec7ch l\u1edbn s\u1ebd nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi qu\u00e1 t\u1ea3i m\u00f4-men xo\u1eafn, v\u00e0 m\u1ed9t kh\u1edbp n\u1ed1i c\u00f3 c\u00e1c tr\u1ee5c tr\u01b0\u1ee3t s\u1ebd ph\u00e1t sinh \u0111\u1ed9 r\u01a1 r\u00f5 r\u1ec7t v\u1edbi t\u1ed1c \u0111\u1ed9 khi\u1ebfn cho vi\u1ec7c \u0111\u00e1nh gi\u00e1 t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n \u0111\u0129a tr\u1edf n\u00ean v\u00f4 ngh\u0129a.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng \u2014 x\u00e1c \u0111\u1ecbnh lo\u1ea1i sai l\u1ec7ch, t\u00ednh to\u00e1n m\u00f4-men xo\u1eafn thi\u1ebft k\u1ebf c\u1ef1c \u0111\u1ea1i v\u1edbi h\u1ec7 s\u1ed1 d\u1ecbch v\u1ee5 ch\u00ednh x\u00e1c, ch\u1ec9 \u0111\u1ecbnh c\u00e1c tr\u1ee5c k\u1eb9p, t\u00ednh to\u00e1n \u0111\u00f3ng g\u00f3p qu\u00e1n t\u00ednh c\u1ee7a kh\u1edbp n\u1ed1i v\u00e0 \u0111\u1ea7u t\u01b0 v\u00e0o vi\u1ec7c c\u0103n ch\u1ec9nh tr\u1ee5c \u2014 lo\u1ea1i b\u1ecf t\u1ea5t c\u1ea3 n\u0103m l\u1ed7i ch\u1ec9 trong m\u1ed9t l\u1ea7n th\u1ef1c hi\u1ec7n quy tr\u00ecnh x\u00e1c \u0111\u1ecbnh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. Qu\u00e1 tr\u00ecnh n\u00e0y ch\u1ec9 m\u1ea5t th\u00eam kho\u1ea3ng 20 \u0111\u1ebfn 30 ph\u00fat so v\u1edbi vi\u1ec7c tra c\u1ee9u nhanh trong catalog, v\u00e0 lo\u1ea1i b\u1ecf \u0111\u01b0\u1ee3c th\u1eddi gian \u0111\u1ea7u t\u01b0 l\u1edbn h\u01a1n nhi\u1ec1u cho vi\u1ec7c ch\u1ea9n \u0111o\u00e1n v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n

\n \"Tr\u1ee5c
C\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 k\u1eb9p tr\u1ee5c, x\u00e1c \u0111\u1ecbnh m\u00f4-men xo\u1eafn ch\u00ednh x\u00e1c, c\u0103n ch\u1ec9nh ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m tra qu\u00e1n t\u00ednh \u2014 b\u1ed1n trong n\u0103m l\u1ed7i n\u00e0y \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u01b0a ra \u1edf giai \u0111o\u1ea1n l\u1eadp \u0111\u1eb7c t\u1ea3 k\u1ef9 thu\u1eadt, tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng b\u1ea5t k\u1ef3 b\u1ed9 ph\u1eadn n\u00e0o.<\/figcaption><\/figure>\n

H\u01b0\u1edbng d\u1eabn nhanh: N\u0103m l\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n
\n
\n\n\n\n\n\n\n\n\n\n
Sai l\u1ea7m<\/th>\nTri\u1ec7u ch\u1ee9ng trong th\u1ef1c \u0111\u1ecba<\/th>\nC\u00e1ch ti\u1ebfp c\u1eadn \u0111\u00fang \u0111\u1eafn<\/th>\n<\/tr>\n<\/thead>\n
Lo\u1ea1i sai l\u1ec7ch<\/td>\nM\u00f2n \u0111\u0129a nhanh, ki\u1ec3u m\u00f2n kh\u00f4ng \u0111\u1ed1i x\u1ee9ng, rung \u0111\u1ed9ng<\/td>\n\u0110o ri\u00eang bi\u1ec7t theo ph\u01b0\u01a1ng ngang v\u00e0 ph\u01b0\u01a1ng g\u00f3c; \u0111\u1ed1i chi\u1ebfu s\u1ef1 k\u1ebft n\u1ed1i v\u1edbi ki\u1ec3u ch\u1ee7 \u0111\u1ea1o.<\/td>\n<\/tr>\n
T\u00ednh to\u00e1n m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c<\/td>\nG\u00e3y \u0111\u0129a \u0111\u1ec7m, h\u1ecfng h\u00f3c do m\u1ecfi s\u1edbm, hi\u1ec7n t\u01b0\u1ee3ng gi\u1eadt ng\u01b0\u1ee3c sau v\u00e0i tu\u1ea7n.<\/td>\nK\u00edch th\u01b0\u1edbc d\u1ef1a tr\u00ean m\u00f4-men xo\u1eafn c\u1ef1c \u0111\u1ea1i c\u1ee7a \u0111\u1ed9ng c\u01a1 \u00d7 h\u1ec7 s\u1ed1 d\u1ecbch v\u1ee5<\/td>\n<\/tr>\n
C\u00e1c tr\u1ee5c v\u00edt \u0111\u1ecbnh v\u1ecb trong servo<\/td>\nS\u1ef1 tr\u00f4i l\u1ec7ch v\u1ecb tr\u00ed d\u1ea7n d\u1ea7n, l\u1ed7i \u0111\u1ecbnh v\u1ecb, \u0111\u1ed9 l\u1ec7ch t\u00edch l\u0169y<\/td>\nCh\u1ec9 \u0111\u1ecbnh c\u00e1c kh\u1edbp n\u1ed1i k\u1eb9p cho t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng servo\/b\u01b0\u1edbc hai chi\u1ec1u.<\/td>\n<\/tr>\n
B\u1ecf qua qu\u00e1n t\u00ednh gh\u00e9p n\u1ed1i<\/td>\nHi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t \u1ed5n \u0111\u1ecbnh servo \u1edf b\u0103ng th\u00f4ng m\u1ee5c ti\u00eau, ph\u1ea3n h\u1ed3i ch\u1eadm ch\u1ea1p.<\/td>\nBao g\u1ed3m qu\u00e1n t\u00ednh kh\u1edbp n\u1ed1i trong t\u1ea3i ph\u1ea3n x\u1ea1; gi\u1eef cho qu\u00e1n t\u00ednh r\u00f4to d\u01b0\u1edbi 10%.<\/td>\n<\/tr>\n
B\u1ecf qua vi\u1ec7c c\u0103n ch\u1ec9nh<\/td>\nTu\u1ed5i th\u1ecd \u0111\u0129a ng\u1eafn, nhi\u1ec7t \u0111\u1ed9 \u1ed5 tr\u1ee5c cao, nhi\u1ec7t \u0111\u1ed9 qu\u00e1 m\u1ee9c<\/td>\n\u0110o \u0111\u1ea1c v\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 l\u1ec7ch tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t; ki\u1ec3m tra l\u1ea1i \u1edf nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n

N\u0103m l\u1ed7i \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u1edf \u0111\u00e2y chi\u1ebfm ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 h\u1ecfng kh\u1edbp n\u1ed1i m\u1ec1m c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c trong c\u00e1c \u1ee9ng d\u1ee5ng chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u00e0 truy\u1ec1n \u0111\u1ed9ng servo. Kh\u00f4ng l\u1ed7i n\u00e0o trong s\u1ed1 \u0111\u00f3 \u0111\u00f2i h\u1ecfi ki\u1ebfn \u200b\u200bth\u1ee9c chuy\u00ean m\u00f4n \u0111\u1ec3 tr\u00e1nh \u2014 ch\u00fang ch\u1ec9 c\u1ea7n s\u1ef1 k\u1ef7 lu\u1eadt \u0111\u1ec3 th\u1ef1c hi\u1ec7n to\u00e0n b\u1ed9 quy tr\u00ecnh l\u1ef1a ch\u1ecdn thay v\u00ec ch\u1ec9 d\u1eebng l\u1ea1i \u1edf k\u00edch th\u01b0\u1edbc l\u1ed7 v\u00e0 \u0111\u1ecbnh m\u1ee9c m\u00f4-men xo\u1eafn trong catalog. M\u1ed9t kh\u1edbp n\u1ed1i Oldham \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ch\u00ednh x\u00e1c v\u1ec1 lo\u1ea1i l\u1ec7ch tr\u1ee5c, m\u00f4-men xo\u1eafn \u0111\u1ed9ng c\u1ef1c \u0111\u1ea1i, ki\u1ec3u tr\u1ee5c, ng\u00e2n s\u00e1ch qu\u00e1n t\u00ednh v\u00e0 c\u0103n ch\u1ec9nh l\u1eafp \u0111\u1eb7t s\u1ebd mang l\u1ea1i nhi\u1ec1u n\u0103m ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u00f3 \u0111\u1ed9 r\u01a1 v\u1edbi y\u00eau c\u1ea7u b\u1ea3o tr\u00ec ch\u1ec9 l\u00e0 ki\u1ec3m tra \u0111\u0129a \u0111\u1ecbnh k\u1ef3. C\u00f9ng m\u1ed9t kh\u1edbp n\u1ed1i \u0111\u00f3 n\u1ebfu \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh sai \u1edf b\u1ea5t k\u1ef3 kh\u00eda c\u1ea1nh n\u00e0o trong n\u0103m kh\u00eda c\u1ea1nh n\u00e0y c\u00f3 th\u1ec3 h\u1ecfng trong v\u00e0i tu\u1ea7n. S\u1ef1 kh\u00e1c bi\u1ec7t ho\u00e0n to\u00e0n n\u1eb1m \u1edf quy tr\u00ecnh thi\u1ebft k\u1ebf.<\/p>\n

H\u00e3y xem qua trang c\u1ee7a ch\u00fang t\u00f4i. D\u00f2ng s\u1ea3n ph\u1ea9m kh\u1edbp n\u1ed1i Oldham v\u1edbi \u0111\u1ea7y \u0111\u1ee7 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt.<\/a> \u0111\u1ec3 h\u1ed7 tr\u1ee3 m\u1ed9t quy tr\u00ecnh tuy\u1ec3n ch\u1ecdn ho\u00e0n ch\u1ec9nh, ho\u1eb7c Li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i<\/a> \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.<\/p>","protected":false},"excerpt":{"rendered":"

Flexible coupling selection looks straightforward from the outside \u2014 find something with the right bore sizes, confirm the torque rating is adequate, and move on. In practice, this approach produces a significant proportion of the premature coupling failures, shortened bearing life, and servo tuning problems that maintenance engineers and motion control specialists encounter in the […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[722],"tags":[905,902,901,907,903,900,908,904,906],"class_list":["post-878","post","type-post","status-publish","format-standard","hentry","category-blog","tag-coupling-inertia-servo","tag-coupling-misalignment-type","tag-coupling-selection-guide","tag-coupling-specification-errors","tag-coupling-torque-sizing","tag-flexible-coupling-selection-mistakes","tag-servo-coupling-selection","tag-set-screw-vs-clamp-hub-mistake","tag-shaft-alignment-coupling"],"_links":{"self":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/posts\/878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/comments?post=878"}],"version-history":[{"count":0,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/posts\/878\/revisions"}],"wp:attachment":[{"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/media?parent=878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/categories?post=878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oldhamcoupling.net\/vi\/wp-json\/wp\/v2\/tags?post=878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}