The utility model discloses a low-
noise worm and gear speed
reducer, and relates to the technical field of speed reducers. Comprising a shell, a
turbine assembly is arranged between the front inner wall and the rear inner wall of the shell and close to the lower side, a worm
assembly is arranged between the left side wall and the right side wall of the shell on the upper side of the
turbine assembly, a sound insulation plate is fixedly installed on the inner wall of the shell, a rubber shock pad is fixedly installed on the lower surface of the shell, and a bottom box is fixedly installed on the lower surface of the rubber shock pad. The bottom box is locked and fixed to the shell through a
locking mechanism, and a partition plate is installed on the inner wall, close to the left side, of the bottom box. The buffering and damping functions of the bottom of the shell are added, the sound insulation function of the inner wall of the shell is added,
noise of the worm and gear speed
reducer is greatly reduced, lubricating
oil can be cooled in the using process, impurities in the lubricating oil are filtered out, the worm and gear can be better lubricated by the lubricating oil,
friction loss or
noise is reduced, and the service life of the worm and gear speed
reducer is prolonged. And the service life of the worm and gear speed reducer is prolonged.