Filter type intermediate rod sealing device of injection pump

The utility model relates to a sealing device, in particular to a filter type intermediate rod sealing device of an injection pump. The technical scheme is as follows: the sealing device mainly consists of a sealing end cover and a seal gland, wherein the sealing end cover comprises a sealing cavity...

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Main Authors JI DONGJUN, SUN ZHIGANG, GU YONGQIANG, JIANG ZHANGTAI, HUANG CHUN, WANG WENJUAN
Format Patent
LanguageChinese
English
Published 18.05.2011
Subjects
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The utility model relates to a sealing device, in particular to a filter type intermediate rod sealing device of an injection pump. The technical scheme is as follows: the sealing device mainly consists of a sealing end cover and a seal gland, wherein the sealing end cover comprises a sealing cavity; internal threads are processed in the sealing cavity; external threads are arranged at the seal gland; the sealing cavity is connected with the seal gland by the threads; and the sealing end cover is provided with an oil return hole. The benefits are as follows: with the device used, when the oil seal of the intermediate rod is damaged for a second time, the oil seal can be directly changed without whole disassembly; and the operation is simple and convenient, and work load is reduced. In addition, the sealing device greatly reduces the working pressure of the oil seal of the intermediate rod, prolongs the service life of the oil seal, decreases the leakage of lubricating oil and polling times, improves safety an
Bibliography:Application Number: CN20102535846U