ÖÐÐÍ»õ³µÍòÏò½ÚÓë´«¶¯ÖáÉè¼Æ ÏÂÔØ±¾ÎÄ

ÕªÒª

ÍòÏò´«¶¯×°ÖÃÒ»°ãÓÉÍòÏò½ÚºÍ´«¶¯Öá×é³É£¬ÓÐʱ»¹Ðè¼Ó×°ÖмäÖ§³Ð¡£±¾Éè¼ÆÖ÷ÒªÑо¿ÖÐÐÍ»õ³µ±äËÙÆ÷ÓëÇý¶¯ÇÅÖ®¼äµÄÍòÏò´«¶¯×°Ö᣸ÃÉè¼ÆÊÇÒÔÍòÏò´«¶¯×°ÖõĽṹÓ빤×÷Ô­ÀíΪ»ù´¡£¬²ÉÓÃÓÐÏÞÔª·ÖÎö¡¢ÀíÂÛÑо¿Óëʵ¼ÊÑо¿¡¢¶¨ÐÔÓ붨Á¿·ÖÎöµÈ·½·¨¼ÆËã³ö½ÏΪºÏÀíµÄÍòÏò½ÚÓë´«¶¯Öá½á¹¹¡£²¢ÓÃÎÄ×ÖÐðÊöÓëͼ±í˵Ã÷Ïà½áºÏµÄ·½·¨²ûÊöÁËÍòÏò´«¶¯×°ÖõĹ¹Ôì¼°ËùÑ¡»ù±¾³ß´ç£¬È»ºó¼ÆËãÁËÍòÏò½ÚµÄת¾Ø£¬¶ÔÊ®×ÖÖáÉϵÄÁ¦ÒÔ¼°Ê®×ÖÖá¾±¸ù²¿µÄÍäÇúÓ¦Á¦ºÍÇÐÓ¦Á¦½øÐÐÇ¿¶ÈУºË£¬ÆäÖÐÓ¦ÓÃÓÐÏÞÔª·ÖÎöµÄ·½·¨¶ÔÖм䴫¶¯Öá½øÐÐÓ¦Á¦·ÖÎö£¬²¢»æÖƳöÁË´«¶¯ÖáµÄÊÜÁ¦ÔÆÍ¼¡£¶ÔÊ®×ÖÖá¹öÕëÖá³Ð½øÐнӴ¥Ó¦Á¦ºÍ¹öÕëËùÄܳÐÊܵÄ×î´óÔØºÉµÄ¼ÆË㣬ÒÔÊʺÏÊ®×ÖÖáµÄʹÓã»¶ÔÍòÏò½Ú²æÓëÊ®×ÖÖáÁ¬½ÓÖ§³Ðʱ²úÉúµÄ×÷Ó÷´Á¦£¬¶ÔÆäÍòÏò½Ú²æ³ÐÊÜÍäÇúºÍŤ¾ØÔغɽøÐÐУºË£¬ÒԴﵽʹÓÃÇ¿¶È¡£È·±£ÆäÔÚÕý³£Ê¹ÓõÄÇé¿öÏ£¬ÓµÓиü³¤µÄʹÓÃÊÙÃü¡£

¹Ø¼ü´Ê£ºÖÐÐÍ»õ³µ£»ÍòÏò´«¶¯×°Öã»Ê®×ÖÖáʽÍòÏò½Ú£»ÉìËõ»¨¼ü

I

Abstract

Universal transmission device is generally composed by universal and shaft, and sometimes it also needs to install middle supporting. This design mainly studies about the medium van¡¯s transmission and the universal transmission between axles.It is based on universal transmission device structure and working principle, and calculates the universal shaft and the reasonable structure by finite element analysis, theoretical research , practical research, the qualitative and quantitative analysis. Use text and illustrations method combining describes the structure ,universal transmission device and selected basic dimensions. Then calculate the torque, and compare the bending stress and shear stress intensity of universal shaft and the roots of the neck. Use application of the finite element analysis method in stress analysis of intermediate shaft transmission and mapped the stress contours. The cross axis needle bearing on contact stress and needle roller can withstand the maximum load calculation for the use of spiders. Compare the cardan shaft supporting the role of the reverse force, cardan sustaining bending and torque load test, in order to achieve intensity. To ensure the service life be longer by normal use in the circumstances.

Key words: medium truck£»universal driving device£»cardan universal joint£»slip join

II

Ŀ¼

Ð÷ÂÛ ........................................................................................................................... 5 1 ÍòÏò´«¶¯×°Öýṹ·½°¸·ÖÎö ............................................................................... 6 1.1 ÖÐÐÍ»õ³µÖ÷Òª²ÎÊýÑ¡Ôñ .................................................................................... 6 1.2 ×ÜÌåÉè¼Æ·½°¸ .................................................................................................... 6 1.2.1 ´«¶¯Öá¹ÜÑ¡Ôñ ................................................................................................. 8 1.2.2 ÉìËõ»¨¼üµÄÑ¡Ôñ ............................................................................................. 8 1.2.3 ÍòÏò½Ú·ÖÎö ..................................................................................................... 9 1.2.4 ÖмäÖ§³Ð½á¹¹·ÖÎöÓëÉè¼Æ ........................................................................... 10 2 ÍòÏò½ÚµÄ·ÖÀà ..................................................................................................... 12 2.1 ²»µÈËÙÍòÏò½Ú .................................................................................................. 12 2.2 ×¼µÈËÙÍòÏò½Ú .................................................................................................. 13 2.3 µÈËÙÍòÏò½Ú ...................................................................................................... 13 3 ÍòÏò½ÚµÄÉè¼ÆÓëÇ¿¶ÈУºË ................................................................................. 14 3.1 ÍòÏò½Ú½á¹¹Óë³ß´çÉè¼Æ .................................................................................. 14 3.1.1 »ù±¾¹¹ÔìÓë»ù±¾Ô­Àí ................................................................................... 14 3.1.2 È·¶¨Ê®×ÖÖá³ß´ç ........................................................................................... 14 3.1.3 Ê®×ÖÖáÍòÏò½ÚµÄ´«¶¯Ð§ÂÊ ........................................................................... 15 3.2 ÍòÏò½ÚÇ¿¶ÈУºË .............................................................................................. 15 3.2.1 Ê®×ÖÖáÍòÏò½ÚÔ˶¯ºÍÊÜÁ¦·ÖÎö ................................................................... 15 3.2.2 Ê®×ÖÖáÍòÏò½Ú´«¶¯µÄ¸½¼ÓÍ侨ºÍ¹ßÐÔÁ¦¾Ø ............................................... 16

3.2.3 Ê®×ÖÖáÍòÏò½Ú´«¶¯µÄÍäÇúÓ¦Á¦Óë¼ôÇÐÓ¦Á¦ ............................................... 19 4 ÍòÏò´«¶¯ÖáÉè¼Æ¼°Ç¿¶ÈУºË ............................................................................. 23 4.1 ´«¶¯ÖáµÄÁÙ½çתËÙ .......................................................................................... 23 4.2 ´«¶¯Ö᳤¶ÈÑ¡Ôñ .............................................................................................. 26 4.3 ´«¶¯Öá¹ÜÄÚÍâ¾¶È·¶¨ ...................................................................................... 26 4.4 ´«¶¯ÖáŤתǿ¶ÈУºË ...................................................................................... 26 4.5 »¨¼üÄÚÍâ¾¶È·¶¨ .............................................................................................. 27 4.6 »¨¼ü¼·Ñ¹Ç¿¶ÈУºË .......................................................................................... 28 5 »ùÓÚCATIAµÄÓÐÏÞÔª·ÖÎö ............................................................................... 29 5.1 Éè¼ÆÁã¼þÄ£ÐÍ .................................................................................................. 29 5.2 Éú³É¾²Ì¬·ÖÎö .................................................................................................. 29 6 ¼¼ÊõÓë¾­¼ÃÐÔ·ÖÎö ............................................................................................. 31 ½áÂÛ ......................................................................................................................... 32 ²Î¿¼ÎÄÏ× ................................................................................................................. 33 ÖÂл ......................................................................................................................... 34

4