Pruner

Abstract

The invention provides a pruner. The pruner comprises a handle component, a power mechanism mounted at one end of the handle component, and a blade component connected with the power mechanism. The power mechanism comprises a casing component, a motor accommodated in the casing component, and a power transmission component mounted on the casing component. The motor is an outer rotor motor with thediameter greater than or equal to 50 mm. The power transmission component comprises a first gear and a second gear. The first gear meshed with the second gear coaxially sleeves an output shaft of theouter rotor motor. The transmission ratio of the first gear to the second gear is less than 6. Compared with the prior art, the pruner has the advantages that the optimal output effect can be achieved without change of the output power of the motor, and the motor has a low rotation speed, large rotation torque, small current, less heating capacity and greatly increased energy consumption ratio.

Description

technical field [0001] The invention relates to garden tools, in particular to a pruning machine. Background technique [0002] An electric pruner is a device used to trim various bushes, hedges, and other outdoor plants such as green plants. Under normal circumstances, the power of the electric pruning machine is output at high speed and high transmission ratio. The disadvantage of this structure is that it generates more heat and requires good heat dissipation, which consumes a lot of power and reduces the use time. [0003] In the prior art, although there is an electric pruning machine using an external rotor motor, the research on the external rotor motor only mentions the use, and there is no specific in-depth study of which external rotor motor can drive the electric pruning machine well. At the same time, how to arrange the outer rotor motor and how to adopt a matching heat dissipation structure are also the current research difficulties in the field of electric pru...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the power of the electric pruning machine is output at high speed and high transmission ratio. The disadvantage of this structure is that it generates more heat and requires good heat dissipation, which consumes a lot of power and reduces the use time.

[0003] In the prior art, although there is an electric pruning machine using an external rotor motor, the research on the external rotor motor only mentions the use, and there is no specific in-depth study of which external rotor motor can drive the electric pruning machine well. At the same time, how to arrange the outer rotor motor and how to adopt a matching heat dissipation structure are also the current research difficulties in the field of electric pruning machines.

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