Pumping unit crank expansion key puller
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In the process of repairing the pumping unit, the crank on the reducer is worn too much, and many people need to use oblique iron when it needs to be replaced, and the crank mouth is easy to open with a sledgehammer, so that the crank can be removed, but it is easy to break the crank when the force is too large, the engineering and technical personnel of Jilin Oilfield Fuyu Oil Production Plant have solved this problem by developing the dilator, and when using, the dilator is placed at the crank mouth and the dilator is rotated with a tool to make the crank mouth open, and the key is pulled out with the key puller, which greatly facilitates the removal of the crank, which solves the labor intensity of the worker in the construction, It also saves a lot of material costs for mining. (Text: Duan Yanqiu Video/Wang Haifeng Photo/Jin Yuhan Editor/Shao Yingfu)
All images courtesy of the author