¡°µç»úÓëÍ϶¯»ù´¡£¨µÚ2°æ£©¡±Ï°Ìâ½â´ð
GD2Ra?Rmin1.25?300.644 TM????0.623(s)
3759.55(Ce?N)23759.55?0.1042 ×î¿ìµÄÖÆ¶¯Í£³µÊ±¼ä t0?TMln
4-17 һ̨ËûÀøÖ±Á÷µç¶¯»úµÄÊý¾ÝΪ£ºPN?5.6kW£¬UN?220V£¬IN?31A£¬nN?1000r/min£¬
Ra?0.45?£¬ÏµÍ³×Ü·ÉÂÖ¹ßÁ¿GD2?9.8N?m2¡£ÔÚתËÙΪnNʱʹµçÊà·´½Ó£¬·´½ÓÖÆ¶¯µÄ
nA?nC1005?2031.4?0.304?ln?0.25(s) ?nC2031.4ÆðʼµçÁ÷Ϊ2IN£¬´«¶¯»ú¹¹ËðºÄת¾Ø?T?0.11TN¡£ÊԾͷ´¿¹ÐÔºãת¾Ø¸ºÔؼ°Î»ÄÜÐÔºãת¾Ø¸ºÔØÁ½ÖÖÇé¿öÇ󣺷´½ÓÖÆ¶¯Ê¹×ªËÙ×ÔnN½µµ½0µÄÖÆ¶¯Ê±¼ä¡£ ½â£º
»ù±¾Êý¾Ý¼ÆË㣺
¶î¶¨ÔËÐÐʱµç¶¯»úµÄCe?N Ce?N?UN?INRa220?31?0.45??0.206(V?min/r) nN1000 ¶î¶¨¸ºÔØÕýÏòÔËÐÐʱµÄ¸ÐÓ¦µç¶¯ÊÆ
EaN?UN?INRa?220-31?0.45?206(V) ·´½ÓÖÆ¶¯Ê±µçÊà»ØÂ·´®Èëµç×èºóµÄ×ܵç×è Ra?Rmin? ·´½ÓÖÆ¶¯Ê±µÄʱ¼ä³£Êý
GD2Ra?Rmin9.86.87 TM????0.443(s) 23759.55(Ce?N)3759.55?0.2062UN?Ea220?206??6.87(?) 2IN2?31 £¨1£©·´¿¹ÐÔºãת¾Ø¸ºÔؼÆË㣺 ÎÈ̬תËÙ
nC? ÖÆ¶¯Ê±¼ä
t0?TMlnnN?nC1000?2101.8?0.443?ln?0.172(s) ?nC2101.8?UNIN(Ra?Rmin)22031?6.87??????2101.8(r/min) Ce?NCe?N0.2060.206 £¨2£©Î»ÄÜÐÔºãת¾Ø¸ºÔؼÆË㣺 ÎÈ̬תËÙ
£ 28 £
¡°µç»úÓëÍ϶¯»ù´¡£¨µÚ2°æ£©¡±Ï°Ìâ½â´ð
nC??UNIa(Ra?Rmin)220(1?0.22)?31?6.87??????1874.4(r/min) Ce?NCe?N0.2060.206 ÖÆ¶¯Ê±¼ä
t0?TMln
nA?nC1000?1874.4?0.443?ln?0.189(s) ?nC1874.4µÚÎåÕ ±äѹÆ÷
5-1
ÔÚÑо¿±äѹÆ÷ʱ£¬¶ÔÕýÏÒÁ¿µçѹ¡¢µçÁ÷¡¢µç¶¯ÊƺʹÅͨµÈΪʲôҪ¹æ¶¨Õý·½Ïò£¿ÎÒÃÇÊǰ´Ê²Ã´¹ßÀýÀ´¹æ¶¨Õý·½ÏòµÄ£¿ ´ð£º
ÓÉÓÚ±äѹÆ÷Öеçѹ¡¢µçÁ÷¡¢µç¶¯ÊƺʹÅͨµÄ´óСºÍ·½Ïò¶¼ËæÊ±¼ä×÷ÖÜÆÚÐԱ仯£¬ÎªÁËÄÜÕýÈ·±íÃ÷¸÷Á¿Ö®¼äµÄ¹ØÏµ£¬Òª¹æ¶¨ËüÃǵÄÕý·½Ïò¡£Ò»°ã²ÉÓõ繤¹ßÀýÀ´¹æ¶¨ÆäÕý·½Ïò£¨¼Ù¶¨Õý·½Ïò£©£º
£¨1£©Í¬Ò»Ìõ֧·ÖУ¬µçѹuµÄÕý·½ÏòÓëµçÁ÷iµÄÕý·½ÏòÒ»Ö£»
£¨2£©ÓɵçÁ÷i²úÉúµÄ´Å¶¯ÊÆËù½¨Á¢µÄ´Åͨ?Æä¶þÕßµÄÕý·½Ïò·ûºÏÓÒÊÖÂÝÐý·¨Ôò£» £¨3£©ÓÉ´Åͨ?²úÉúµÄ¸ÐÓ¦µç¶¯ÊÆe£¬ÆäÕý·½ÏòÓë²úÉú¸Ã´ÅͨµÄµçÁ÷iµÄÕý·½ÏòÒ»Ö£¬ÔòÓÐe??Nd?/dt¡£ 5-2
±äѹÆ÷ÖÐÖ÷´ÅͨºÍ©´ÅͨµÄÐÔÖʺÍ×÷ÓÃÓÐʲô²»Í¬£¿ÔÚµÈЧµç·ÖÐÈçºÎ·´Ó³ËüÃǵÄ×÷Óã¿ ´ð£º
µ±Ò»´ÎÈÆ×é¼ÓÉϽ»Á÷µçÔ´µçѹu1ʱ£¬Ò»´ÎÈÆ×éÖоÍÓеçÁ÷²úÉú£¬ÓÉÓÚ±äѹÆ÷Ϊ¿ÕÔØÔËÐУ¬´Ëʱ³ÆÒ»´ÎÈÆ×éÖеĵçÁ÷Ϊ¿ÕÔØµçÁ÷i0¡£ÓÉi0²úÉú¿ÕÔØ´Å¶¯ÊÆF0?N1i0£¬²¢½¨Á¢¿ÕÔØÊ±µÄ´Å³¡¡£ÓÉÓÚÌúÐĵĴŵ¼ÂÊ±È¿ÕÆø£¨»òÓÍ£©µÄ´Åµ¼ÂÊ´óµÃ¶à£¬ËùÒÔ¾ø´ó²¿·Ö´Åͨͨ¹ýÌúÐıպϣ¬Í¬Ê±½»Á´Ò»¡¢¶þ´ÎÈÆ×飬²¢²úÉú¸ÐÓ¦µç¶¯ÊÆe1ºÍe2£¬Èç¹û¶þ´ÎÈÆ×éÓë¸ºÔØ½Óͨ£¬ÔòÔÚµç¶¯ÊÆ×÷ÓÃÏÂÏò¸ºÔØÊä³öµç¹¦ÂÊ£¬ËùÒÔÕⲿ·Ö´ÅͨÆð×Å´«µÝÄÜÁ¿µÄý½é×÷Óã¬Òò´Ë³ÆÖ®ÎªÖ÷´Åͨ?m£»ÁíÓÐһС²¿·Ö´Åͨ£¨Ô¼ÎªÖ÷´ÅͨµÄ0.25%×óÓÒ£©Ö÷Òª¾·Ç´ÅÐÔ²ÄÁÏ£¨¿ÕÆø»ò±äѹÆ÷Ó͵ȣ©ÐγɱÕ·£¬Ö»ÓëÒ»´ÎÈÆ×é½»Á´£¬²»²ÎÓÚÄÜÁ¿´«µÝ£¬³ÆÖ®ÎªÒ»´ÎÈÆ×éµÄ©´Åͨ?1?£¬ËüÔÚÒ»´ÎÈÆ×éÖвúÉú©´Åµç¶¯ÊÆe1?¡£
£ 29 £
¡°µç»úÓëÍ϶¯»ù´¡£¨µÚ2°æ£©¡±Ï°Ìâ½â´ð
ÔÚ±äѹÆ÷µÈЧµç·ÖУ¬Ö÷´ÅͨµÄ×÷ÓÃͨ¹ýËüËù²úÉúµÄ¸ÐÓ¦µç¶¯ÊÆÀ´±íÕ÷£¬¼´Ò»¡¢¶þ´ÎÈÆ×é¸ÐÓ¦µç¶¯ÊÆE1¡¢E2µÄ´óСÓëµçԴƵÂÊf1¡¢ÈÆ×éÔÑÊýN1¡¢N2¼°ÌúÐÄÖÐÖ÷´ÅͨµÄ×î´óÖµ?m³ÉÕý±È£¬¶øÔÚÏàλÉϱȲúÉú¸ÐÓ¦µç¶¯ÊƵÄÖ÷´ÅͨÖͺó90¡ã¡£¶øµÈЧµç·ÖеÄ©µç¿¹·´Ó³ÁË©´Åͨ¶Ôµç·µÄµç´ÅЧӦ¡£ÓÉÓÚ©´ÅͨµÄÖ÷Ҫ·¾¶ÊÇ·ÇÌú´ÅÐÔÎïÖÊ£¬Â©´Å·²»»á±¥ºÍ£¬ÊÇÏßÐԵ쬯ä´Åµ¼Êdz£Êý£¬Òò´Ë¶ÔÒÑÖÆ³ÉµÄ±äѹÆ÷£¬Â©µç¸ÐL1?Ϊһ³£Êý£¬µ±µçԴƵÂÊf1Ò»¶¨Ê±£¬Â©µç¿¹Ò²Êdz£ÊýX1??L1?¡£
R1X1R2X2?I1?U1?E1?I2?U?E22ZL 5-3
ͼ5-9 ±äѹÆ÷¸ºÔØÔËÐÐʱµÄµÈЧµç·
±äѹÆ÷¿ÕÔØÔËÐÐʱ£¬Ò»´Î²à¼Ó¶î¶¨µçѹ£¬ÎªÊ²Ã´¿ÕÔØµçÁ÷I0ºÜС£¿Èç¹ûÒ»´Î²à¼Ó¶î¶¨µçѹµÄÖ±Á÷µçÔ´£¬Õâʱһ´Î²àµçÁ÷¡¢ÌúÐÄÖдÅͨ»áÓÐʲô±ä»¯£¿¶þ´ÎÈÆ×鿪·ºÍ¶Ì·¶ÔÒ»´ÎÈÆ×éµÄµçÁ÷ÓÐÎÞÓ°Ï죿 ´ð£º
±äѹÆ÷Ö÷´ÅͨµÄ·¾¶ÍêÈ«ÊÇͨ¹ýÌúÐıպϵģ¬Ö÷´Å·µÄ´Å×èºÜС£¬Ö»ÐèÒªºÜСµÄÀø´ÅµçÁ÷¾ÍÄܲúÉú½Ï´óµÄÖ÷´Åͨ£¬²¢²úÉú×ãÒÔÆ½ºâÒ»´Î²à¶î¶¨µçѹµÄ¸ÐÓ¦µç¶¯ÊÆ£¬ËùÒÔ±äѹÆ÷¿ÕÔØÔËÐÐʱ£¬¼´Ê¹Ò»´Î²à¼Ó¶î¶¨µçѹ£¬¿ÕÔØµçÁ÷I0Ò²ºÜС¡£
Èç¹ûÒ»´Î²à¼Ó¶î¶¨µçѹµÄÖ±Á÷µçÔ´£¬ÕâʱûÓеç´Å¸ÐÓ¦×÷Ó㬶µçѹ½«ÍêÈ«ÓÉÒ»´Î²àÈÆ×éµÄµç×èѹ½µÀ´Æ½ºâ£¬ÓÉÓÚÒ»´Î²àÈÆ×éµÄµç×èÒ»°ãºÜС£¬Ò»´Î²àµçÁ÷½«±äµÃ·Ç³£´ó£¬ÌúÐÄÖеĴÅͨºÜ±äµÃºÜ´ó£¬ÓпÉÄÜÉÕ»Ù±äѹÆ÷£¨Ï൱Óڶ̷ʹʣ©¡£Õâʱ¶þ´ÎÈÆ×鿪·ºÍ¶Ì·¶ÔÒ»´ÎÈÆ×éµÄµçÁ÷ûÓÐÓ°Ïì¡£
5-4 һ̨ÓÃÓÚ50HzµçÔ´µÄµ¥Ïà±äѹÆ÷£¬Èç¹û½ÓÔÚ60HzµçÍøÉÏÔËÐУ¬Èç¹û¶î¶¨µçѹ²»±ä£¬Ôò¿ÕÔØµçÁ÷¡¢ÌúÐÄËðºÄ¡¢Â©µç¿¹¡¢Àø´Åµç¿¹¼°µçѹµ÷ÕûÂʵÈÓкα仯£¿ ´ð£º
¸ù¾Ý±äѹÆ÷Ò»´Î²àµÄµçѹƽºâ·½³Ì
£ 30 £
¡°µç»úÓëÍ϶¯»ù´¡£¨µÚ2°æ£©¡±Ï°Ìâ½â´ð
U1N?E1?4.44f1N1?m f1?50Hʱ£¬?m50?zU1NU1N£»f1?60Hzʱ£¬?m60?£¬ËùÒÔ
4.44?60N14.44?50N1
?m605? ?m506¼´Ö÷´ÅͨΪÔÀ´µÄ5/6¡£Èô²»¿¼ÂÇ´Å·µÄ±¥ºÍЧӦ£¬Ö÷´ÅͨÓë¿ÕÔØµçÁ÷£¨Àø´ÅµçÁ÷£©³ÉÕý±È£¬¿ÕÔØµçÁ÷½«¼õС¡£ ÌúÐÄËðºÄµÄ½üËÆ¼ÆË㹫ʽΪ ?pFe60?CFefBËùÒÔ£¬ÌúÐÄËðºÄ½«¼õС¡£
©´Å·µÄ´Å×è²»±ä£¬Â©µç¸Ð²»±ä£¬ËùÒÔ©µç¿¹Ëæ×ÅÆµÂʵÄÔö¼Ó¶ø±ä´ó¡£ÔÚ²»¿¼ÂÇ´Å·±¥ºÍµÄÇé¿öÏ£¬Àø´Åµç¿¹Ò²Ëæ×ÅÆµÂʵÄÔö¼Ó¶ø±ä´ó¡£¶øÂ©µç¿¹µÄ±ä´óÒâζ×ŶÌ·µç¿¹µÄ±ä´ó£¬ËùÒÔµçѹµ÷ÕûÂÊÒ²±ä´ó¡£ 5-5
һ̨µ¥Ïà±äѹÆ÷£¬¶î¶¨µçѹΪ220V/110V£¬Èç¹û²»É÷½«µÍѹ²àÎó½Óµ½220VµÄµçÔ´ÉÏ£¬¶Ô±äѹÆ÷ÓкÎÓ°Ï죿 ´ð£º
ÕâÊÇһ̨½µÑ¹±äѹÆ÷£¬µÍÑ¹ÈÆ×éÔÑÊýN2ÉÙ¡£Óɹ«Ê½U1N?4.44f1N2?m¿ÉÖª£¬Ö÷´Åͨ?mÒªÔö¼ÓºÜ¶à²ÅÄÜÆ½ºâ¶ËµçѹU1N£¬´ÅͨµÄÔö¼ÓÓÖÒò´Å··ÇÏßÐÔÒýÆðÀø´ÅµçÁ÷Ôö¼ÓºÜ¶à£¬µçÁ÷¹ý´ó¾Í¿ÉÄÜÉÕ»µµÍÑ¹ÈÆ×é¡£ 5-6
һ̨µ¥Ïà±äѹÆ÷£¬¶î¶¨ÈÝÁ¿Îª5kV¡¤A£¬¸ß¡¢µÍѹ²àÈÆ×é¾ùΪÁ½¸öÔÑÊýÏàͬµÄÏßȦ£¬¸ß¡¢µÍѹ²àÿ¸öÏßȦµÄ¶î¶¨µçѹΪ1100VºÍ110V£¬ÏÖ½«ËüÃǽøÐв»Í¬·½Ê½µÄÁ¬½Ó£¬ÊÔÎÊÿÖÖÁ¬½ÓµÄ¸ß¡¢µÍѹ²à¶î¶¨µçÁ÷Ϊ¶àÉÙ£¿¿ÉµÃ¼¸ÖÖ²»Í¬µÄµçѹ±È£¿ ½â£º
£¨1£©¸ßÑ¹ÈÆ×é´®Áª¡¢µÍÑ¹ÈÆ×é´®Áª£º I1N? I2N? k?5000?2.273A
1100?25000?22.727A 110?21.3602m60?6?G?CFe???5?1.3f1.350?5?2?5???Bm50G????6??6?20.7?pFe50
1100?2?10
110?2 £¨2£©¸ßÑ¹ÈÆ×é´®Áª¡¢µÍÑ¹ÈÆ×é²¢Áª£º
£ 31 £