The packing seal used in gear oil pumps is a sealing device that uses elastic, plastic materials or elements with elastic structures to block the leakage channel between the shaft and the housing. It can be divided into soft packing seals, hard packing seals, formed packing seals and oil seals.
The reasons for gear oil pump packing seal leakage are as follows
. The packing loses elasticity and lubrication after being used for a period of time, resulting in leakage
. The pressure of the sealing oil is small and the flow rate is small
. Installation The packing sleeve and other parts are seriously worn, or the radial gap between the stuffing box and the sleeve and other parts is too large
If a rubber ring is installed on the end face of the shaft, it may be damaged and cause serious leakage
New installation If the shaft sleeve is eccentric
and rots over time, the packing can be replaced and its material meets the requirements
. The packing, gland, packing sleeve, packing ring and other parts are damaged, and the packing seal leaks during startup. , and the leakage increased quickly. Although the packing gland was tightened continuously, the leakage continued and finally it could not work.
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