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摘 要
實(shí)驗(yàn)發(fā)現(xiàn)，在草坪跟根莖采集收獲時(shí)，伴隨著根莖尚有大量的泥土砂石被甩刀甩了上來(lái)。為了保證根莖采集收獲的質(zhì)量，必須在草坪根莖采集收獲機(jī)上添加一個(gè)清選裝置，即草坪根莖采集收獲機(jī)的氣吸輸送裝置。
草坪根莖采集收獲機(jī)的氣吸輸送裝置主要包括兩個(gè)部分，一部分是貫流風(fēng)機(jī)，它利用葉輪的旋轉(zhuǎn)，在進(jìn)風(fēng)口處形成一個(gè)負(fù)壓。從而使質(zhì)量較輕的根莖被吸上來(lái)。而把質(zhì)量較重的泥土，砂石留在了篩板上。第二個(gè)部分是振動(dòng)篩。它主要是利用其自身的振動(dòng)，把存在其上的顆粒較小的泥土、砂石從篩孔中漏到地面上。
本文主要對(duì)貫流風(fēng)機(jī)的幾何參數(shù)和運(yùn)動(dòng)參數(shù)進(jìn)行了分析、研究和設(shè)計(jì)，確定了其傳動(dòng)方案，并對(duì)貫流風(fēng)機(jī)的軸進(jìn)行了設(shè)計(jì)計(jì)算及校核。選擇并校核了軸承和鍵。同時(shí)對(duì)振動(dòng)篩進(jìn)行了研究設(shè)計(jì)，確定了其幾何參數(shù)及篩孔的分布情況。最后對(duì)貫流風(fēng)機(jī)及振動(dòng)篩進(jìn)行了裝配和布置。
關(guān)鍵詞：貫流風(fēng)機(jī)；振動(dòng)篩；氣吸輸送裝置
Abstract
Experiments show that, on the lawn with rhizomes collected at harvest time, accompanied by the root there are a lot of clay sand flail throw up. In order to ensure the rhizome acquisition harvest quality, must add a cleaning device in the lawn rhizome acquisition harvester, namely grass roots acquisition harvester pneumatic conveying device.
Lawn rhizome acquisition harvester pneumatic conveying device mainly consists of two parts, one part is a cross flow fan, which utilizes the impeller rotation, the formation of a negative pressure in the air inlet. So that the quality of the lighter roots are sucked up. The quality of the heavier mud, sand and gravel in the sieve plate. The second part is the vibration sieve. It is mainly the use of vibration of its own, the smaller grains on the clay, sand and gravel from the mesh of the leakage to the ground.
The geometric parameters and the movement parameters of the main flow fan on the penetration of research and design, analysis, the transmission scheme is determined, and the flow fan on the tubular shaft design calculation and checking. Selection and check of bearing and bond. At the same time of the vibrating screen is researched and designed, the distribution of the geometric parameters and the mesh was determined. At the end of the cross flow fan and vibration screen assembly and arrangement.
Key word:cross-flow fan;vibrosieve;air conveyer