1. leadÀÇ ¼±Á¤
±¸µ¿¸ðÅÍÀÇ È¸Àü¼ö 750rpm, ÃÖ°í¼Óµµ 0.06m/ÀÏ ¶§ lead(L)=0.06*60*1000/750 = 5mm
2. ³ª»çÃà°æÀÇ ¼±Á¤
lead°ªÀÌ 5mmÀÌ¸ç °¡°ÝÀÌ Àú·ÅÇÑ ÀüÁ¶º¼³ª»çÁß Áö¸§ÀÌ 15ÀÎ bnf-1505-2.5¸¦ ¼±Á¤ÇÏ¿´´Ù.
3. Çã¿ë Ãà ¹æÇâÇÏÁßÀÇ °ËÅä
ÃÖ´ëÃàÇÏÁßÀÇ »êÃâ °¡¼Óµµ a=Vmax/t=0.084m/s »ó½Â°¡¼Ó½Ã : Fa1 = (m1 + m2)*g + f + (m1 + m2) * a = 180N »ó½Âµî¼Ó½Ã : Fa2 = (m1 + m2)*g + f = 167N °½Â°¨¼Ó½Ã : Fa3 = (m1 + m2)*g + f - (m1 + m2) * a = 153.4N ÇÏ°»ó¼Ó½Ã : Fa4 = (m1 + m2)*g - f - (m1 + m2) * a = 113.4N ÇÏ°µî¼Ó½Ã : Fa5 = (m1 + m2)*g - f = 127N ÇÏ°°¨¼Ó½Ã : Fa6 = (m1 + m2)*g - f + (m1 + m2) * a = 140.6N À̻󿡼 º¼³ª»ç¿¡ ÀÛ¿ëÇÏ´Â ÃÖ´ëÃà¹æÇâÇÏÁßÀº 180NÀÌ µÈ´Ù.
4. ³ª»çÃàÀÇ Á±¼ÇÏÁß
P1 = n * d©ù* 10©ù / L©÷= 26407N ³ª¼öÃàÀÇ Çã¿ëÀÎÀåÇÏÁß : P2 = ¥ò*¥ðd©÷/ 4 = 18100N µû¶ó¼ ³ª»çÃàÀÇ Á±¼ ÇÏÁß, Çã¿ë¾ÐÃà ÀÎÀåÇÏÁßÀº ÃÖ´ë Ãà ¹æÇâ ÇÏÁß ÀÌ»óÀÌ µÇ±â ¶§¹®¿¡ »ç¿ë»óÀÇ ¹®Á¦°¡ ¾ø´Ù.
5. Çã¿ëȸÀü¼öÀÇ °ËÅä
Nmax = 0.06 * 60 * 1000 / 5 = 720rpm DNÀÇ ¼±Á¤ : DN = 70000/D = 4179.1rpm À§Çè¼Óµµ : N = ¥ë* d*10e7/L©÷ = 9320rpm À̻󿡼 ³ª»çÃàÀÇ À§Çè¼Óµµ ¹× DNÄ¡¸¦ ¸¸Á·ÇϰԵȴÙ.
6. ³ÊÆ®ÀÇ ¼±Á¤
bnf 1605 -2.5 ±âº»Àü°ÝÇÏÁß Ca=7.5KN, Co=13.9KN Çã¿ë Ãà¹æÇâ ÇÏÁßÀÇ °ËÅä : °¨¼Ó, °¨¼Ó½Ã¿¡ Ãæ°ÝÇÏÁßÀÌ ÀÛ¿ëÇϹǷΠfs = 2·Î ¼±Á¤ÇÑ´Ù. fa=Co/fs = 27.8KN ºÎÇÏ ÃÖ´ë Ãà ¹æÇâÇÏÁß º¸´Ù. Çã¿ëÃà ¹æÇâ ÇÏÁßÀÌ Å©±â ¶§¹®¿¡ ¹®Á¦´Â ¾ø´Ù. |