Large modulus gear and involute sawtooth wave clutch gearbox for lawn mower

Abstract

There are a variety of solutions available on several models. In order to further reduce costs, plastic molding methods, especially injection molding, are recommended to mass-produce gears and gearboxes for lawn mowers. The ninth solution is to use less expensive non-machine Processing, especially the large modulus gears for injection-molded lawn mowers and the reduction boxes for involute saw-tooth wave clutches. A large number of injection molded parts are used. Let the injection molded gears be able to work with larger torques and clutch tasks, increase the modulus, reduce the number of teeth, and change the friction cone to an involute sawtooth wave clutch. It is characterized in that: the large modulus gear (88) with involute sawtooth wave clutch is provided with large modulus teeth (88a), connecting wall (88b), sawtooth (88c), involute sawtooth wave (88d), Main rear axle clearance slot (88e). The number of teeth of the pinion (89) is single teeth, or double teeth, or 3 teeth, or more, preferably 3 teeth.

Description

technical field [0001] The invention relates to a lawn mower used for mowing garden lawns in gardens, parks, roads and other places, especially non-machining, especially injection-molded large-modulus gears and involute sawtooth waves for lawn mowers with relatively low cost. Clutched gearbox. Background technique [0002] Lawn mowers are widely used to mow grass in a mode that is sometimes self-propelled and sometimes not self-propelled by people's preferences. Operate the walker to pull the self-propelled control handle, and through the wire rope and the lever, the clutch block moves axially to perform clutching. The clutch block of the clutch device in the rear wheel drive gear reduction clutch of the self-propelled mechanism in the prior art is only clutched by the cone on the side of the clutch block, which requires a large axial bonding force, causing the internal pressure circular gasket to break Damage occurs from time to time; frictional heat is generated between ...

AI Technical Summary

Problems solved by technology

In order to keep the projection distance between the pulley shaft of the reducer and the main rear shaft on the horizontal plane, and to further optimize the meshing parameters and geometric coefficients of the spiral bevel gear for the secondary gear, the eighth scheme is also called the inner cone for lawn mowers. The Oerlikon cycloidal hypoid gear reducer with a set of clutches came into being; but encountered difficulties in the mass production of powder molded small bevel gears

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