¼ÐÌ×ʽ·´Ó¦¸ªÉè¼ÆËµÃ÷Êé·Ö½â

Ñ¡Óûù×¼³¤¶ÈLd=2000mm ¼ÆËãʵ¼ÊÖÐÐľࣺa=a?a0?6£©¡¢ÑéËãС´øÂÖ°ü½Ç

D2?D1?1?180???57.3?

a =180¡ã-£¨400-140£©¡Â560¡Á57.3¡ã =153.4¡ã>120¡ã£¬ ¹Ê³ß´çºÏÊÊ¡£ 7£©¡¢È·¶¨V´ø¸ùÊýz

n1720´«¶¯±Èi===2.953

n2243.8Óɲο¼ÎÄÏ×[3]12.3£¬12.4,12.5£¬12.6,12.8

·Ö±ð²éµÃ£ºP1=1.30kw,¦¤P1=0.02kw,K0=0.96,KL=1.11 ËùÒÔ z=

Pd=2.23

(P1??P1)K?KlLd?Ld0?559?560mm 2 È¡ z=3¸ù 8£©¡¢ÇóѹÖáÁ¦FQ

ÓÉ¡¶»úеÉè¼Æ»ù´¡¡·±í12.2²éµÄq=0.10kg/m

500Pc2.5(?1)?qv2 ÕŽôÁ¦¹«Ê½£ºF0?ZVK?500?3.32.5?(?1)?0.10?5.352 =

3?5.350.96 =167.78N

ѹÖáÁ¦FQ=2¡ÁZ¡ÁF¡Ásin£¨¦Á/2£© =2¡Á3¡Á167.78¡Ásin£¨153.4/2£© =979.68N

2.4.3͹Ե·¨À¼

͹Ե·¨À¼Ò»°ãº¸½ÓÓÚ½Á°èÈÝÆ÷·âÍ·ÉÏ£¬ÓÃÓÚÁ¬½Ó½Á°è´«¶¯×°Öã¬Òà¿É¼æ×÷

°²×°£¬Î¬ÐÞ£¬¼ì²éÓÿס£Í¹Ôµ·¨À¼·ÖÕûÌåºÍ³ÄÀïÁ½ÖֽṹÐÎʽ£¬ÃÜ·âÃæ·ÖÍ»Ãæ£¨R£©ºÍ°¼Ã棨M£©Á½ÖÖ¡£

±¾·´Ó¦¸ªÍ¹Ôµ·¨À¼º¸½ÓÓÚ½Á°èÈÝÆ÷·âÍ·ÉÏ£¬²ÉÓÃÕûÌå½á¹¹ÐÎʽ¡£ÓɱíD-6͹Ե·¨À¼Ö÷Òª³ß´ç£¬Ñ¡Ôñ¹«³ÆÖ±¾¶DN=200mm£¬ÂÝÎÆÎªM16£¬ÂÝ˨ÊýÁ¿Îª8¸ö

15

µÄMÐÍ͹Ե·¨À¼¡£

2.4.4°²×°µ×¸Ç

°²×°µ×¸Ç²ÉÓÃÂÝÖùµÈ½ô¹Ì¼þ£¬ÉÏÓë»ú¼ÜÁ¬½Ó£¬ÏÂÓë͹Ե·¨À¼Á¬½Ó£¬ÊÇÕû¸ö½Á°è´«¶¯×°ÖÃÓëÈÝÆ÷Á¬½ÓµÄÖ÷ÒªÁ¬½Ó¼þ¡£

°²×°µ×¸ÇµÄ³£ÓÃÐÎʽΪRSºÍLRSÐÍ£¬ÆäËû½á¹¹£¨ÕûÌå»ò³ÄÀ¡¢ÃÜ·âÃæÐÎʽ£¨Í»Ãæ»ò°¼Ã棩ÒÔ¼°´«¶¯ÖáµÄ°²×°ÐÎʽ£¨ÉÏ×°»òÏÂ×°£©£¬°´HG21565-1995ѡȡ¡£°²×°µ×¸ÇµÄ¹«³ÆÖ±¾¶Óë͹Ե·¨À¼Ïàͬ¡£ÐÎʽѡȡʱӦעÒâÓë͹Ե·¨À¼µÄÃÜ·âÃæÅäºÏ£¨Í»ÃæÅäÍ»Ãæ£¬°¼ÃæÅä°¼Ãæ£©¡£

±¾·´Ó¦¸ª°²×°µ×¸Ç²ÉÓÃÂÝÖùµÈ½ô¹Ì¼þ£¬ÉÏÓë»ú¼ÜÁ¬½Ó£¬ÏÂÓë͹Ե·¨À¼Á¬½Ó¡£²ÉÓÃRSÐÍÐÎʽ£¬ÕûÌå½á¹¹¡¢ÃÜ·âÃæÐÎʽ£¨Í»Ã棩ÒÔ¼°´«¶¯ÖáµÄ°²×°ÐÎʽ£¨ÉÏ×°£©£¬°´HG21565-1995ѡȡ¡£°²×°µ×¸ÇµÄ¹«³ÆÖ±¾¶Óë͹Ե·¨À¼Ïàͬ£¬¾ùΪDN=200mm,²é±íD.7°²×°µ×¸ÇµÄ³ß´çÈ·¶¨ÆäËû²ÎÊý¡£

2.4.5»ú¼Ü

Á¢Ê½½Á°èÉ豸´«¶¯×°Öôó¶àÊÇͨ¹ý»ú¼Ü¡¢°²×°µ×¸Ç°²×°ÔÚ½Á°èÉ豸·âÍ·ÉÏ¡£»ú¼ÜÉ϶ËÓ¦Óë¼õËÙÆ÷Á¬½Ó³ß´çÏàÆ¥Å䣬϶˲ÉÓÃÂÝÖùÓë°²×°µ×¸ÇÏàÁ¬½Ó¡£µ±±ê×¼»ú¼Ü²»ÄÜÂú×ãÒªÇóʱ£¬¿ÉÒÔ¸ù¾Ý¾ßÌå½á¹¹×ÔÐнøÐÐÉè¼Æ¡£±¾½Á°èÆ÷µÄ»ú¼ÜΪº¸½Ó·Ç±ê×¼»ú¼Ü£¬¾ßÌå³ß´çÒÔͼʾΪ׼¡£

2.4.6ÁªÖáÆ÷

µç»ú»ò¼õËÙ»úÊä³öÖáÓë´«¶¯ÖáÖ®¼ä¼°´«¶¯ÖáÓë½Á°èÖáÖ®¼äµÄÁ¬½Ó£¬¶¼ÊÇͨ¹ýÁªÖáÆ÷Á¬½ÓµÄ£¬²¢´«µÝÔ˶¯ºÍת¾Ø¡£ÁªÖáÆ÷·ÖΪ¸ÕÐÔÁªÖáÆ÷ºÍµ¯ÐÔÁªÖáÆ÷Á½´óÀà¡£³£ÓõÄÁªÖáÆ÷Óе¯ÐÔ¿éʽÁªÖáÆ÷£¬¸ÕÐÔ͹ԵÁªÖáÆ÷£¬¼Ð¿ÇÁªÖáÆ÷ºÍ½ô¹¿¼Ð¿ÇÁªÖáÆ÷µÈ¡£

¾ÝËùÑ¡V´ø¼õËÙ»úµÄ¹æ¸ñ, ±¾·´Ó¦¸ª²ÉÓøÕÐÔ͹ԵÁªÖáÆ÷¡£²éGTÐÍ͹ԵÁªÖáÆ÷Ö÷Òª²ÎÊý¼°³ß´ç£¬Ñ¡ÓÃÁªÖáÆ÷µÄ·ûºÅΪGY-4£¬¿×¾¶Îª40©L£¬ÖÊÁ¿Îª3.15kg¡£

16

2.5½Á°èÖáµÄÉè¼ÆºÍУºË

2.5.1ÖáµÄºÍÉè¼Æ

½Á°èÖáµÄ»úеÉè¼ÆÄÚÈÝͬһ°ã´«¶¯ÖᣬÖ÷ÒªÊǽṹÉè¼ÆºÍÇ¿¶ÈУºË ½Á°èÖáµÄ²ÄÁÏ£ºÑ¡Óà 45¸Ö

ÖṦÂÊ£ºP=3kw£¬ÖáתËÙn2=250rmin 3P?114.6N?mT=9550=9550?250n ²ÄÁÏÐíÓÃŤתӦÁ¦[¦Ó]=35£¬²é±íµÃϵÊýA=112

d?A3Öá¶ËÖ±¾¶

p3?112?3?25.6mm n2250¿¼Âǵ½¿ª¼ü²ÛÖáÀ©´ó5%£¬Ôòd=26.92mm<30mm ¹ÊÈ¡×îСÖᾶΪ30©L 2.5.2ÖáµÄУºË

3P?114.6N?m ÓÉͼ¿ÉµÃT=9550=9550?250nAµã´¦FQ=979.68N£¬¶ÔB,CµãµÄÔ¼Êø·´Á¦

68?335?FQ?1178.5N 33568?FQ?198.9N FC=335 FB=

17

ÓÉÍä¾ØÍ¼ºÍÍäÁ¦Í¼¿ÉÖª£¬×îΣÏÕ½ØÃæÎªB´¦ ¶øB´¦µÄÍ侨MB=0.068¡ÁFQ=979.68¡Á0.068 =66.62N¡¤m

ÒòΪ¸Ã´«¶¯Îªµ¥Ïò´«¶¯£¬¿ÉÒÔÈÏΪŤ¾ØÎªÎªÂö¶¯Ñ­»·±ä»¯£¬¹ÊÕÛºÏϵÊý

?=0.6.Ôò ?T=0.6¡Á114.6=68.76N

×îΣÏÕ½ØÃæ´¦µÄµ±Á¿Í侨

MeB=Mb2?(?T)2=66.622?68.762 =95.74N¡¤m

¼ÆËã×îΣÏÕ½ØÃæBµÄÖá¾¶do do¡Ý3MeB95.74?1000 ?30.1[??1b]0.1?55 =25.92mm

ËãÉÏ5%µÄ¼Ó¹¤¼õ±¡Á¿ÒÔ¼°ÏúµÄÓ°Ï죬ȡd=30mm£¬ÏÔȻǿ¶È×ã¹»¡£

2.6¼üµÄУºË

ÖáÉϼü×îСµÄÊÇ´ó´øÂֵļü£¬ÆäÐͺÅΪ¼ü32¡Á8¡Á7 £¬²ÄÁÏΪ45¸Ö£¬ÐèÓüôÇÐÓ¦Á¦Îª[¦Ó]=30MPa

FQ=M¡Âr=159.1¡Â0.018=7640N£¬AQ=0.032¡Á0.008+3.14¡Á0.004=2.72¡Á

2

10?4m2

¦Ó= FQ/ AQ=28.07MPa;

ËùÒÔ¦Ó£¼[¦Ó]£¬¼´¼üµÄÇ¿¶ÈºÏ¸ñ¡£

18

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@) ËÕICP±¸20003344ºÅ-4