Novel suction system of piggyback cotton picker

Abstract

The invention discloses a novel suction system of a piggyback cotton picker, comprising a main case, a main air blower and a circuit board controlling the main air blower. A negative pressure cavity is formed in the main case when the main air blower rotates to work; an air inlet of the main blower is provided with a screen connected in a rotary way; an air lock is arranged between the negative pressure cavity and a cotton outlet at the bottom of the main case, and the air lock is tightly matched with the inner wall of the main case to separate the inside of the negative pressure cavity from atmosphere; the suction system is also provided with a heat dissipation structure comprising a cooling blade arranged on an output shaft of a main motor, a deflector hole for inspiration is arranged on the air blower case corresponds corresponding to the cooling blade, the air blower case is provided with an air outlet with a downward opening at the bottom of the cooling blade, and the bottom of the air blower case is provided with a ventilate grid communicated with atmosphere; the cooling blade sucks the air into the air blower case by the deflector hole, and air is exhausted to atmosphere bythe air outlet and the ventilate grid. The invention has the advantages of high cotton picking efficiency, low broken fuzz content, low picking loss power, simple structure, reliable work and low failure rate.

Description

technical field [0001] The invention relates to a cotton picker, in particular to a suction system of a knapsack cotton picker. Background technique [0002] Small cotton pickers are immature products, many designs are still in the experimental stage, and there are very few products that can be widely used in agricultural production. Many traditional knapsack cotton pickers use fans to generate negative pressure to suck and transport cotton. There are two general structures. One is that the cotton is sucked by the fan and then enters the fan, and is blown out to the cotton collection bag by the blades of the fan. The biggest problem with this method is that it destroys the cotton fiber and reduces the quality of the cotton. Now it is very The other is to use a structure such as Patent No. 200620139208.2, which installs a net cover connected with the wind blade on the air inlet of the fan, and the net cover rotates at a high speed with the wind blade. The cotton that enters...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of suction system for knapsack cotton pickers, which can effectively solve the problem that the existing cotton picker suction system will destroy cotton fibers, the quality of cotton is low, and the suction system consumes a lot of energy, causing serious energy waste and energy utilization. low rate problem

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