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Electric four-wheel mower blade brake mechanism

A brake mechanism and lawn mower technology, applied in harvesters, agricultural machinery and implements, applications, etc., can solve problems such as low assembly efficiency, complex structure, and poor reliability, and achieve high work efficiency, reasonable layout, and low production costs. low effect

Inactive Publication Date: 2018-05-29
周宝东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These braking methods are not only complex in structure and high in cost, but also have problems such as poor reliability and low assembly efficiency.

Method used

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  • Electric four-wheel mower blade brake mechanism

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 The blade brake mechanism of the medium electric four-wheel lawn mower is mainly composed of a series motor, a support, a V-ribbed belt, a cutting blade, a large pulley, a brake ring, a bearing I, a brake pad, a brake spring, a retainer, The brake mechanism mainly realizes the brake function through the friction between the brake pad and the brake ring, and the braking time is controlled within 3s; the series excitation motor is fixed at one end of the support; the The large pulley is fixed on the other end of the support through bearing I and bearing II; the brake ring is also fixed on one end of the support (that is, the same end as the large pulley); the series excitation motor is driven by a V-ribbed belt The large pulley rotates, thereby driving the blades to rotate to realize the mowing function; the brake pad contacts the brake ring under the pressure of the brake spring; the brake pad is made of a composite of friction material and metal iron block bod...

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Abstract

An electric four-wheel mower blade brake mechanism mainly comprises a string excited motor, a holder, a multi-wedged belt, a cutting blade, a large pulley, a brake ring, a bearing I, a brake sheet, abrake spring, a stopping sheet and a bearing II; braking function is realized by the friction effect between the brake sheet and the brake ring; the string excited motor is fixed at one end of the holder; the large pulley is fixed at the other end of the holder through the bearing I and the bearing II; the brake ring is fixed at the same end of the large pulley of the holder; the brake sheet is intouch with the brake ring under the pressure effect of the brake spring; the brake sheet adopts the composite body of friction material and metallic iron blocks; one end in touch with the brake ringis a friction sheet and the other end is an iron block; the air out passage of the string excited motor is used for cooling the brake mechanism through the brake ring. The invention has the advantagesof simple structure, reasonable arrangement, high working efficiency, low production cost, stable operation and simple operation, and can meet the requirement of fast braking of the electric four-wheel mower blade.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a blade braking mechanism of an electric four-wheel lawn mower. Background technique [0002] In order to ensure the safety of the lawn mower, it is required that the cutting device (blade) of the machine can be braked quickly. Domestic and foreign standards have mandatory regulations on the braking time of electric lawn mowers, that is, the time from when the operator removes the operation control button or handle to when the cutting device stops operating must be less than 3s. Under normal circumstances, the natural braking time of the blade is 5-7s. In order to reduce the braking time of the cutting device, at present, different manufacturers adopt different structural methods, mainly including electromagnetic booster clutch, slip clutch, horseshoe hoop centrifugal clutch, electromagnetic reverse circuit, etc. These braking methods are not only complex in stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D69/10
CPCA01D69/10
Inventor 周宝东
Owner 周宝东
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