我厂生产的铲运松散物料的FJZ7型自装式翻斗车，其上铰接体连接前后车架，铰接体与后车架连接处的铰接销受力大，润滑条件差，铰接销轴向限位不可靠．易损坏，为此我们对其进行了改进。如图1所示，将梨形板3改为叉口梨形板10，增大其厚度，叉口梨形板10的形状见图2；将铰?.. The FJZ7 self-loading dump truck for loosening loose materials produced by our factory has a hinged body connecting the front and rear frames, the hinge pin of the hinge body and the rear frame is subjected to a large force, the lubrication condition is poor, and the axial limit of the hinge pin Bit is not reliable. Vulnerable to damage, for which we have made improvements. As shown in Fig. 1, the pear-shaped plate 3 is changed to the fork-shaped pear-shaped plate 10 to increase its thickness, and the shape of the fork-shaped pear-shaped plate 10 is shown in Fig. 2;