A submerged reducer

Abstract

The invention discloses a submerged reducer, comprising a casing, one end of the casing is provided with a first shaft hole, an input shaft for linkage connection with a motor shaft is arranged through the first shaft hole, and the casing The other end of the shaft is provided with a second shaft hole, the second shaft hole is provided with an output shaft, the inner end of the input shaft is linked with a driving gear, and the inner end of the output shaft is linked with a driven gear, the The driven gear is meshed with the driving gear; it also includes a composite sealing mechanism, the composite sealing mechanism includes a helical back-pressure sealing assembly arranged in the first shaft hole, and the helical back-pressure sealing assembly includes a helical back-pressure sealing assembly that is spirally arranged on the output shaft at the first shaft hole. A threaded body on the inner position of the shaft hole, the threaded body is in clearance fit with the inner wall of the first shaft hole. The invention not only has good stability when working underwater, but also has excellent sealing performance, which greatly improves the service life of the equipment.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to a submerged reducer. Background technique [0002] Gear reducers are widely used in all walks of life, benefiting from the continuous development of advanced design technology and theoretical research (such as gear strength calculation method, modification technology, deformation calculation, optimization design method, tooth root smooth transition, new structure, etc.) , The improvement of material technology (various high-quality alloy steel forgings are widely used, and the level of material and heat treatment quality control is improved), the structure design is more reasonable, the machining accuracy is improved (ISO5-6 level), and the quality and life of bearings and lubricants are improved, etc. Factors, the world's reducer technology has also been greatly developed. [0003] At present, the research results of the reducer for underwater application are still unclear. So...

AI Technical Summary

Problems solved by technology

[0003] At present, the research results of reducers for underwater applications are still unclear. Some domestic and foreign manufacturers of reducers, due to the unreasonable design of materials, overall structures, and parts, make existing underwater reducers The stability of the reducer working underwater is poor, and more importantly, the design of the sealing structure and the selection of sealing materials are unreasonable, resulting in poor sealing performance of the underwater work and short service life of the product

Images