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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>loiwtjsf</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Czw 7:50, 30 Gru 2010<span class="gen"> </span> Temat postu: ugg milano Aluminum alloy ingot milling spindle tu</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Aluminum alloy ingot milling spindle turning machines modified <br /> <br /> <br />Force. Force analysis of the worm, there is no external load at fracture in the worm have too much bending stress, so the worm break some other reasons. The reducer is suspended, its second worm shaft and the frame to join tapered hole way, reducer housing through the shaft bearings in a frame hanging on. Therefore, if the framework of the radial or axial runout occurs, the reducer will also follow beating. And with a worm gear connected to the motor is fixed to the frame bracket. When the framework of the beating, the motor shaft through the coupling of a worm will generate axial or radial force. Spindle turning machine according to the site of observation, the frame rotates, the framework for the process with the flip, axial and radial runout to varying degrees, the beat makes the worm has been extremely negative bending force. This force is a worm gear frequent cause of fatigue fracture. 2, 2005 Light Metal 59 - turn spindle machine frame by beating a number of reasons. Rotation axis and the support frame bearing gap is too large, support bearing bracket ran across the framework of the different axis of rotation and the ingot in the heart of the framework when the impact of flip and so on, can result in the framework of beating. For these reasons ill with routine maintenance,<a href="http://www.stivaliuggboots.com" target="_blank" class="postlink">ugg milano</a>, improper operation have a relationship, but the most fundamental reason is the aging and overloaded equipment. 3, the process of transformation of turning spindle turning machine spindle machine frame supporting part of the defect more easily resolved,<a href="http://www.stivaliuggitalia.org" target="_blank" class="postlink">ugg stivali</a>, but does not eliminate the root causes of failure. Only the framework to transform the rotation of the drive mechanism to eliminate the impact of external load on the worm is the fundamental strategy. In order not to affect the production, we carried out step by step transformation. First of all, to improve the fatigue strength of the worm to increase reliability and reduce the spare parts supply pressure, to gain time for further reform. As a worm and a sudden change in the input section, there is stress concentration. Lower fatigue strength. If the improved structure, reducing stress concentration and improve the quality of the shaft surface, can improve the fatigue strength, to a certain extent, to extend the life of the worm. Specific measures: (1) becomes worm material, replace the original steel material with 4OCt 45 # steel, increased strength of the material. (2) the shaft angle between 45mm and 34mm conical transition to transition, and the grinding cone to reduce the stress concentration. (3) surface hardening to improve the surface hardness of the shaft. Figure 3. * New Books - Figure 3, the emergency measures before the transformation without changing the program is based on the structure reducer carried out, almost does not affect the production and use of equipment trouble-free period has been extended, although the beating of turning on the machine frame spindles worm bending force still exists, fatigue fracture will occur, but the temporary improvement of the worm to ensure the normal production time for further reform. Radical transformation in the implementation process, we adopted the following programs: As the level is broken worm gear reducer and motor displacement caused by inter-changing, so if we can eliminate the impact of displacement on the worm, you can eliminate the hidden trouble. . Figure 4 Reconstruction of a program shown in Figure 4, between the reducer and the motor connection with a universal coupling, so that although the motor fixed gear still beating, but because of the existence of a universal coupling, motor will not produce bending forces worm, the worm will not be broken due to the bending stress and fatigue. Can be said that this transformation program is the most simple, most economical, but after the motor to be moved along the axis, in order to create space to install the couplings. 4 Conclusion After transformation, turning spindle milling machine has been running well, in order to address the factors causing fatigue fracture of the worm to avoid turning ingots of aluminum ingot milling machine in the production of forced downtime. References: [1] Din-Sue Fon model. Mechanical Engineering (M]. Beijing: China Machine Press, 1983. (2] Mechanical Design Manual (M]. Beijing: Chemical Industry Press,<a href="http://www.stivaliuggitalia.org" target="_blank" class="postlink">ugg italia</a>, 2003. (Editor Wu Honglin) China Nonferrous Metal Metallurgical Society of Academic Committee of the Fifth Light second set of aluminum 2005 annual meeting of members of professional and Academic Exchange has been published. concentrated collection of today's national aluminum industry sector of new technologies,<a href="http://www.airjordansshoescheapnike.com" target="_blank" class="postlink">air jordan shoes cheap</a>, new technology and advanced production management, paper 158. The main contents include Summary of electrolytic aluminum production, aluminum production process, materials and lining cell in the village life, and start baking electrolytic cell, anode production and assembly,<a href="http://www.stivaliuggitalia.org" target="_blank" class="postlink">ugg prezzo</a>, control and testing, the aluminum and casting. also published several excellent domestic aluminum production supplier information. fee 100 yuan / the need to subscribe to the units or individuals directed to the technical development of aluminum in Guangxi Branch of the Ministry of contact. Contact Tel: (0776) 5802823,5802149 Address: Guangxi Shares of aluminum in Pingguo County, Guangxi Branch of Technical Development Code: 531400 <br /> <br />相关的主题文章： <br /> <br /> <br /> <a href="http://www.xmeduok.com/news_show.asp?NewsID=1942" target="_blank" class="postlink">Scientific Writing common errors (b) _2478</a> <br /> <br /> <a href="http://pasiaboat.com/SMF/index.php?topic=10867.msg29917#msg29917" target="_blank" class="postlink">ed hardy clothing Fracture Analysis _2682 motorcycle frame</a> <br /> <br /> <a href="http://www.phpbbserver.com/telliamn/viewtopic.php?p=1303&mforum=telliamn#1303" target="_blank" class="postlink">ugg italia Characteristics of multistage rocket sp</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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