Electric mower provided with logarithmic spiral brake achieving automatic braking protection and series excitation motor

Abstract

Provided is an electric mower provided with a logarithmic spiral brake achieving automatic braking protection and a series excitation motor. The mower is provided with the anti-collision safety logarithmic spiral brake. Four assemblies are added to a common lawn mower and comprise the support assembly of a storage battery provided with a charger and an inverter, the cutting device assembly dragged by the series excitation motor, the pipe winder assembly and the brake assembly. The mower comprises an anti-collision protector arranged at the front portion of a mower chassis, the brake arranged in the middle of the mower chassis, a grass pruning head and a pipe winder. When a front article collides with outer wrapping rubber skin of a movable support and a sliding rod of the movable support retracts, a limit switch is triggered, and anti-collision is achieved. The electric mower has the advantages that the logarithmic spiral brake achieving automatic braking protection enhances the anti-collision safety and braking effect, grass cutting and grass pruning can be selected, and the movement area is large.

Description

technical field [0001] The invention relates to a lawn mower used for mowing lawns in gardens, parks, roads and other places. The anti-collision safety device at the front of the lawn mower chassis, and the series-excited motor electric lawn mower with the brake in the middle of the lawn mower chassis; A modification of the lawn mower, which includes a logarithmic spiral brake with anti-collision insurance and self-stopping, a hose reel with a mowing head, and a liquid pipeline for watering, fertilizing and spraying Versatile lawn mower. Background technique [0002] Lawn mowers are widely used to mow grass in the manner chosen by people. When some pedestrians like and are used to using lawn mowers, they put a little more force on the rear upper armrest and have a feeling of leaning and pressing down, which virtually increases the possibility of the front wheels being tilted and suspended. ; and the design of the lawn mower should also take care of the user's comfort and ...

AI Technical Summary

Problems solved by technology

Anti-collision security and secure braking, mowing and mowing are optional, and there are wires and a large area. These are easier said than done, and they have always been a long-standing problem with electric lawn mowers.

[0007]Why use a cord reel? Because of the long wires scattered on the ground, when the electric lawn mower mows back and forth, sometimes it is accidentally stepped on by feet or crushed by wheels, which affects safety; If the wire is not long enough, mowing is suspended, or the wire is managed manually, which increases safety hazards

Why put a cord reel on an electric lawn mower? Anyone who has used an electric lawn mower knows that weeds often leak when mowing, and they have to be re-mowed. Especially when the environment is complex, such as bushes mixed with the lawn, it is necessary to take several steps forward and several times and repeat the mowing from left to right. Grass; if the reel is placed far away, the wires near the lawn mower cannot be pulled in and out synchronously with the pull and stop in time, or they will fall to the ground limply, and there is a danger of being stepped on or crushed by wheels, or they cannot be pulled in and out in time. Line in and out

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