17.齿轮油泵装配后为何要测试主动轴转动力矩?如何测试? 答:齿轮油泵装配后,往往由于零件或装配中存在一些问题,使主动齿轮轴转动困难。若盲目地进行试运转,便可能发生轴套和齿轮急剧磨损、油泵温度迅速升高和密封胶圈损坏等现象,使油泵早期损坏。正常情况下,装配后的主动齿轮转动力矩一般不得大于0.3公斤·米。测试时,3系列泵和东—40泵可借助于8或14毫米开口搬手转动主动齿轮轴(图 17. Gear pump after assembly Why test drive shaft torque? How to test? A: Gear pump assembly, often due to parts or assembly there are some problems that make the drive gear shaft rotation difficult. If the trial run blindly, there may be a sharp wear sleeve and gear, pump temperature rapidly rising and sealing ring damage and other phenomena, the early damage to the pump. Under normal circumstances, the assembly of the driving gear torque generally not more than 0.3 kg · m. When tested, the Series 3 pumps and East-40 pumps can be moved by means of 8 or 14 mm openings to drive the pinion shaft