文档介绍：充值下载即送 CAD 图纸, QQ 36396305 I 摘要轴承作为汽车的变速器的核心部分,随着汽车工业的发展,其可靠性越发被人们所关注。轴与轴承、轴套的配合为过盈配合,需要较大的压入力,并且随着压入长度的增大而增大,若不能很好的保证轴承的可靠性,很可能会引发交通事故。然而压装过程对轴承的可靠性起着决定性的作用,要将两个轴套均匀地压入无缝钢管两端,并且要保证两轴套间的相对位置,轴套压到底部后,在相应的位置还要钻攻螺纹孔, 传统的人为手工压装,其弊端明显,不仅劳动强度大,效率低下,还无法满足精度要求。本次设计的装置采用液压传动,通过电动机带动皮带轮将动力传递至丝杠支承,使丝杠转动,从而带动装有螺母的压头移动,将轴套压入至指定位置,同时保证轴套与钻孔之间的相对位置,并通过安全离合器的作用,断开电机完成压装。此装置不仅可以解决在人为进行装配时的大强度、低精度等问题,还能大大地提高了效率。关键词:汽车变速器; 过盈配合;轴、轴承和轴套;轴承压装装置充值下载即送 CAD 图纸, QQ 36396305 II Abstract As a core part of the transmission of the car, with the development of the automobile industry, the reliability of bearings are concerned about by more and more people. Shaft bearings, bushings with an interference fit, requires a large amount of pressing force, and increases with the length, if can not ensure the reliability of the bearing, is may lead to accidents . However, the process of pressing plays a decisive role in the bearing reliability , two sleeve pressure evenly into both ends of seamless steel pipe, and to ensure that the relative position between the two bushings the sleeve pressure in the end portion in the corresponding the location but also drilling and tapping threaded holes, traditional press-fit the human hand, its obvious drawbacks, not only labor-intensive, inefficient and unable to meet the accuracy requirements. The design of the device adopts hydraulic transmission, driven by the motor pulley to transmit power to the screw supporting the screw rotation, so as to drive the indenter mobile air-nut pressed into the sleeve to the specified location, at the same time assuring the shaft the relative position between the drilling. This device not only solve the artificial labor intensity when assembly and low positioning accuracy ,but also greatly improve efficiency. Key words: automobile transmission; interference fit; shaft, bearing and shaft sleeve ; bearing pressing device 充值下载即送 CAD 图纸, QQ 36396305 III 目录摘要..............................................................................