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

A large-modulus, sawtooth wave technology is applied in the field of large-modulus gears and gear boxes with involute sawtooth wave clutches to prevent undercuts, improve transmission meshing parameters and geometric coefficients, and reduce costs.

Inactive Publication Date: 2011-12-21
NINGBO DAYE GARDEN EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 seco...

Method used

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

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Embodiment Construction

[0177] Operate the walker to pull the self-propelled control handle, pull the cable pull arm 84 through the wire rope, and make the clutch block move in the axial direction to engage, that is, the bevel gear 82 with the clutch cone is engaged with the rear main shaft, and the power is transmitted through the first stage of the belt. , so that the small bevel gear 81 rotates, and the small bevel gear 81 is installed on the upper gear box cover 83 of the powder metallurgy bevel gear box through bearings, thereby driving the bevel gear 82 with the clutch cone for two-stage transmission , and then make the lawn mower self-propelled through the three-stage transmission.

[0178] The clutch gear of the clutch device in the rear wheel drive gear reduction clutch of the self-propelled mechanism of the clutch is not only engaged by the cone on the inner surface of the clutch gear, or as an improvement, it uses a deformed waveform, especially a sine wave inner wall, and multiple small M...

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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 ...

Claims

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Application Information

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IPC IPC(8): A01D69/00F16H55/17F16H55/08
Inventor 苏克
Owner NINGBO DAYE GARDEN EQUIP
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