Thread sealing coupling

Abstract

The invention discloses a thread sealing coupling which comprises a left-half coupling body, a right-half coupling body and an inner gear sleeve. One end of the inner gear sleeve is open, and the other end of the inner gear sleeve is provided with a placement hole. Two stages of stepped holes are formed in an inner cavity of the inner gear sleeve, and a limiting step is arranged at the tail end ofthe right-half coupling body. A key groove is formed in the front portion of the limiting step, and an outer gear sleeve is mounted on the right-half coupling body. The right-half coupling body penetrates the placement hole, and the outer gear sleeve is located in the inner cavity of the inner gear sleeve. An annular mounting end is arranged at the tail end of the left-half coupling body, and aninternal thread and an external thread are arranged on the inner side and the outer side of the annular mounting end. A threaded hole is formed in the opening end of the inner gear sleeve, and the left-half coupling body is mounted at the opening end of the inner gear sleeve. After the structure is adopted, sealing links are few, the sealing property is improved, the joint end and the inner cavityare staggered to further ensure the sealing property, and the threaded connection structure further ensures the sealing property and use for a long time of the thread sealing coupling; and structuraldesign is simple, dismounting and mounting are convenient and rapid, overhauling is convenient, the manufacturing cost is reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a shaft coupling, in particular to a threaded sealing shaft coupling. Background technique [0002] The traditional drum-shaped gear coupling generally includes two half-couplings, each half-coupling has an outer gear shaft and an inner gear sleeve sleeved outside the outer gear shaft, and the two half-couplings have The two inner gear sleeves are connected by flanges. As we all know, the coupling is generally sealed and installed through the end cover and the sealing ring during the connection process. The existing structure, on the one hand, due to the installation of the sealing ring, the sealing There are many links, and long-term use is easy to cause the sealing ring to fail, causing lubricating oil to leak, which reduces the reliability of use. In addition, the sealing ring needs to be replaced frequently, which wastes manpower and material resources and affects normal use. On the other hand, the terminal used The cover ...

AI Technical Summary

Problems solved by technology

[0002] The traditional drum-shaped gear coupling generally includes two half-couplings, each half-coupling has an outer gear shaft and an inner gear sleeve sleeved outside the outer gear shaft, and the two half-couplings have The two inner gear sleeves are connected by flanges. As we all know, the coupling is generally sealed and installed through the end cover and the sealing ring during the connection process. The existing structure, on the one hand, due to the installation of the sealing ring, the sealing There are many links, and long-term use is easy to cause the sealing ring to fail, causing lubricating oil to leak, which reduces the reliability of use. In addition, the sealing ring needs to be replaced frequently, which wastes manpower and material resources and affects normal use. On the other hand, the terminal used The cover is directly placed on the shaft end, and it is easy to cause damage to the end cover after long-term use, which affects the service life

Images