共查询到18条相似文献,搜索用时 62 毫秒
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文中介绍了一种楔形接触摩擦的重载离心摩擦离合器,其结构简单,寿命长,传递的功率大,造价低廉,接合分离迅速,是一种较为理想的离心摩擦离合器。 相似文献
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本文介绍一种重载离心安全摩擦离合器,其结构简单,寿命长,传递的功率大,造价低廉,接合分离迅速,是一种较为理想的离心安全摩擦离合器。 相似文献
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近年来,扭簧摩擦离合器的应用越来越广泛,它具有单向传动、结构简单、外形小,可靠性高和使用寿命长等特点,因而被广泛用作于家用套缸洗衣机的传动机构.家用套缸洗衣机的工作传动要求:洗衣时,波轮轴作正反方向交替旋转,脱水筒固定不转;干衣时,波轮轴不动随脱水筒一起按一固定方向旋转.在同一动力源上要完成上述两种不同的动作,最简单的结构是依靠离合器作传动变换,而扭簧摩擦离合器又是目前最为理想的传动机构(见图1). 相似文献
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介绍一种新型重载摩擦离合器,其结构简单,寿命长,传递的功率大,造价低廉,接合分离迅速,易于安装对中,是一种较为理想的重载摩擦离合器。 相似文献
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介绍了一种非平面摩擦重载摩擦离合器,该离合器体积小,传递扭矩大,接合分离迅速、结构简单、工艺性好,造价低廉、易于装配、寿命长,是一种较为理想的新型重载摩擦离合器。 相似文献
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离合器摩擦副表面温度对摩擦因数的影响 总被引:2,自引:0,他引:2
通过对某型离合器摩擦副的摩擦学小样试验,研究了离合器在结合的滑动摩擦过程中,摩擦面温度对离合器摩擦材料摩擦因数的影响.采用扫描电子显微镜(SEM),分析了样件的摩擦表面形貌,探讨了产生影响的机制,并从摩擦因数角度探讨了微车离合器起步发抖和烧蚀的主要原因.微车离合器摩擦材料摩擦因数随着摩擦面温度先升高,然后趋于稳定,最后再降低,其稳定工作的温度区间为130~220℃;在摩擦面温度较低的工况下,摩擦因数较低,微车起步时,离合器传递的扭矩不足以克服道路阻力,引起微车起步发抖的现象;而在摩擦面温度过高的工况下,离合过程中,摩擦因数较低,传递扭矩效率低,导致离合器滑磨时间过长,引起烧蚀现象. 相似文献
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The performance of wet clutches used for automatic transmissions or other applications usually includes the desired positive friction characteristics and a shudder-free torque generation. Changes in the operating variables such as the lubricant conditions influence the formation of a tribofilm, and friction characteristics and can alter the degradation of the friction interfaces. In this work, the friction characteristics and degradation of the paper–steel friction interfaces were monitored when a commercial fully formulated automatic transmission fluid (ATF) was contaminated with water. It was found that water in ATF influenced the clutch stability by increasing the mean coefficient of friction (µ) and the negative friction–velocity slope. Surface studies of the posttest friction interfaces clearly indicated reduced surface porosity and permeability, increased wettability, and changed elemental composition on the contacting surfaces after tested with water-contaminated ATF. Moreover, water-contaminated paper liners' thermal decomposition shifted to a lower temperature compared to an uncontaminated liner during thermal analyses. These results displayed faster degradation and reduced service life of the clutch friction interfaces due to water contamination. The resultant surface condition can be associated with the observed unstable friction and negative friction–velocity slopes. 相似文献