The invention relates to the field of vibration reduction of elastic rubber bearings, in particular to a method for avoiding stress concentration of a metal spacer bush in a multi-layer rod end bearing, and the overall thickness uniformity of an outermost rubber body is improved by reducing the rubber thickness of an end section in the outermost rubber body. Specifically, the thickness is reduced by increasing the thickness of the contact position of the outermost-layer spacer bush and the end section of the outermost-layer rubber body, the outermost-layer spacer bush comprises an upper connecting face and a lower connecting face, and the rubber thickness of the end section in the outermost-layer rubber body is reduced by changing the molded surface of the contact position of the upper connecting face and the end section of the outermost-layer rubber body. The outermost layer of spacer bush sequentially comprises a middle sleeve, a connecting sleeve and an end sleeve from the middle to the outer side, the molded surface, at the middle sleeve and the connecting sleeve, of the upper connecting surface is of a spherical surface structure matched with the corresponding position of the lower connecting surface, the molded surface, at the end sleeve, of the upper connecting surface is of a straight surface structure, and the straight surface structure is an inclined straight surface. The problem that stress of a metal spacer bush is concentrated under large radial bearing of an existing rod end bearing is solved.
本发明涉及弹性橡胶轴承减振领域,具体提供了一种避免多层杆端轴承中金属隔套应力集中的方法,通过减小最外层橡胶体中端部段的橡胶厚度来提高最外层橡胶体的整体厚度均匀性,具体通过增加最外层隔套与最外层橡胶体的端部段接触处的厚度来减小,最外层隔套包括上连接面和下连接面,通过改变上连接面中与最外层橡胶体的端部段接触处的型面来减小最外层橡胶体中端部段的橡胶厚度,最外层隔套从中部朝向外侧依次包括中部套、连接套和端部套,将上连接面在中部套、连接套处的型面设为与下连接面相应位置匹配的球面结构,将上连接面在端部套处的型面设为直面结构且直面结构为斜直面。本发明解决了现有杆端轴承在大径向承载下金属隔套应力集中的问题。
Method for avoiding stress concentration of metal spacer bush in multi-layer rod end bearing
一种避免多层杆端轴承中金属隔套应力集中的方法
2024-01-30
Patent
Elektronische Ressource
Chinesisch
IPC: | F16C SHAFTS , Wellen / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B64C AEROPLANES , Flugzeuge / F16F SPRINGS , Federn |