Belt drive type centrifugal fan driven dust suction device of combine harvester

Abstract

The invention discloses a belt drive type centrifugal fan driven dust suction device of a combine harvester. The dust suction device comprises drive components and dust suction components, wherein thedrive components comprise a driving belt wheel, a small belt wheel, a large belt wheel and a fan pulley, the driving belt wheel replaces an original pulley of a harvester drive system, and the numberof belt grooves of the driving belt wheel is increased by one as compared with the number of original pulleys; the driving belt wheel is connected with the small belt wheel through a dust collector tensioning belt, the small belt wheel and the large belt wheel are coaxially mounted, and the large belt wheel is connected with the fan pulley through a dust collector driving belt; and the dust suction components comprise a fan combination, a volute casing and a dust collector casing. The dust suction device is high in reliability and universality, stable to operate, free of noises, easy to maintain, cheap to maintain and convenient to tension and dismount; with the adoption of secondary belt drive, the rotating speed of a fan and the dust suction effect can be increased by changing the sizeof the pulley; and the device is high in dust suction capacity and low in cost.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a dust collection device for a combine harvester driven by a belt-driven centrifugal fan. Background technique [0002] During the harvesting operation of the existing combine harvester, because the dust is very large, it is not conducive to the health of the workers. For this reason, a combine harvester dust suction device with a centrifugal fan structure driven by a belt has been invented. [0003] The traditional combine harvester dust collection device is driven by a motor, but the motor-driven combine harvester dust collection device has the following disadvantages: 1. When the motor is working on a rainy day or muddy ground, it is prone to water ingress into the motor and the vacuum cleaner cannot collect dust thus stop working. 2. Due to the harsh working environment of the harvester, there is a lot of dust, vibration and mud pollution, electrical component...

AI Technical Summary

Problems solved by technology

[0002] When the existing combine harvester is harvesting, the dust is very large, which is not conducive to the health of the workers. Therefore, a dust suction device for the combine harvester with a centrifugal fan structure driven by a belt was invented.

[0003] The traditional combine harvester dust collection device is driven by a motor, but the motor-driven combine harvester dust collection device has the following disadvantages: 1. When the motor is working on a rainy day or muddy ground, it is prone to water ingress into the motor and the vacuum cleaner cannot collect dust thus stop working

2. Due to the harsh working environment of the harvester, there is a lot of dust, vibration and mud pollution, electrical components are prone to damage such as short circuit, open circuit, etc. Once damaged, the maintenance cost of electrical devices is high

3. The installation of the motor requires wiring and wiring changes, which complicates the harvester, thereby reducing the reliability and versatility of the harvester and increasing the cost

4. Due to the accumulation of dust, when the vacuum cleaner is blocked, it is easy to cause overload damage to the motor or even burn it

5. When the motor stops, a lot of heat is generated, and the location of the dust collection device is very close to the straw. If it touches the straw, it may burn and catch fire, posing a great safety hazard.

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