我们在挖掘机的油路系统中,使用了大量的直角(或大干直角)接头。由于受安装部位的限制,以及考虑到油压压力的高低,联接件接合表而的状态等因素,选用了不同结构形式的直角接头。这些接头具有不同结构特点、使用条件和工艺性能。现例举十三种直角接头,并分类比较如下:一、固定式如图1的结构,当上紧后,其 b 端没有确定的方向,为了达到需要的方向,须修薄紫铜垫片来实现,费工费时,只能作修配 We used a large number of right angle (or large dry right angle) joints in the excavator’s oil circuit system. Due to the restrictions of the installation site, and taking into account the level of hydraulic pressure, the state of the coupling parts and other factors, select the right angle joints of different structural forms. These joints have different structural characteristics, use conditions and process performance. Thirteen types of right-angled joints are listed here, and the classification is as follows: 1. The fixed structure shown in Fig. 1. When tightened, the b-end has no definite direction. In order to achieve the required direction, a thin copper gasket must be repaired. Realization, time and labor, can only be repaired