交通牌SH361型自卸汽车的手制动器中采用了橄榄形弹簧(图1),在国外一些车型上也有采用这种形状的弹簧。为了设计时便于计算,我们对橄榄形弹簧受轴向压力P作用时的变形和强度计算进行了探讨。我们认为簧杆本身虽是螺旋形状,如果略去螺旋角及簧圈曲率的影响,将簧杆按等直杆来计算,所得的近似解,其精确度在工程计算中已完全足够。 Traffic license SH361 dump truck hand brake with olive-shaped spring (Figure 1), in some foreign models also have this shape of the spring. In order to be easy to calculate when designing, the deformation and strength calculation of the olive spring under the action of axial pressure P are discussed. We think that although the spring rod itself is a helical shape, if we omit the helix angle and the effect of the curvature of the spring, the rod is calculated as a straight rod. The resulting approximate solution has enough accuracy in engineering calculation.