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This paper mainly has carried on the design of hydraulic system of unloading system to pneumatic bucket, compared with the primary pneumatic system, and determined the main parameter of hydraulic system cylinder. The hydraulic system of the bucket unloading can be determined through the analysis of system basic loop. It is also related to hoisting machine unloading system. At the same time, calculating...
The objective of the study is to develop a set of test system for testing and evaluating the working performance of electric nail guns. This paper studies the evaluation methods of the electric nail gun through the analysis of the working principle and internal structure of the electric nail gun. And the performance evaluation indicators of the electric nail gun are proposed. Based on these indicators,...
The objective of the study is to find out a kind of suitable way of establishing load spectrum on durability test of the car hub bearing. On the basis of establishing the car dynamic model, the paper analyzed the load situation of the Hub bearing. According to the ordinary transport status of the actual car, the driving cycle of the car was set up. In the end, the steps of establishing load spectrum...
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