Contact Forces in a Screw Feeding Process

Shi, Yunfei; Zhang, Xiliang; Cui, Shoujuan; Ma, Kui

doi:10.1155/2018/4924582

Cited by 4 publications

(1 citation statement)

References 22 publications

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“…ere were two parts of spiral blades and telescopic teeth to complete stalk collection and delivery. Spiral blades were mounted on the surface of the cylinder body [26]. Structural model of combine auger is shown in Figure 4(a).…”

Section: Combine Augermentioning

confidence: 99%

Effects of Stem Cutting in Rice Harvesting by Combine Harvester Front Header Vibration

Tang

Zhang

Zhou

et al. 2019

Advances in Materials Science and Engineering

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In order to reveal the reason of stem cutting in rice harvesting by combine harvester front header, stem cutting principle of the front header was developed. Based on the structural models and the parameters of each part of header, the first eight-order constrained modal simulation analysis was carried out to obtain the vibration response frequency. The front header was produced and used to be tested for restraint experimental modal in the rice field. The rice stem cutting state of the header cutter was analyzed by carrying out the vibration test of the no-load rotation state and rice harvesting state in the field. According to the cutting diagram of the stalk in the header, the angle of the cutting surface and length distribution of the short stalk were analyzed with compound state of forward and vertical vibration. The results showed the mean and variance amplitude of front header were similar to length distribution of the short stalk. The mean length 23.60 mm of the repeatedly cut stems was inextricably linked to the up and down vibration amplitude 25.36 mm of the header. The stem cutting surface angles 38°, 44°, and 62° were for different forward speed and cutting areas on the cutting diagram. The above studies reveal the intrinsic nature between header vibration and length distribution of the cutting stem.

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Section: Combine Augermentioning

confidence: 99%