鏈?zhǔn)綀A管刮板輸送機(jī)設(shè)計(jì)及DEM仿真優(yōu)化
發(fā)布時(shí)間：2018-11-09 11:37
【摘要】：隨著畜牧業(yè)的發(fā)展,大型養(yǎng)殖場(chǎng)的養(yǎng)殖規(guī)模在擴(kuò)大,若再采用傳統(tǒng)的飼養(yǎng)方法,將需要大量的人力和物力,也增加了飼養(yǎng)過程中傳染問題出現(xiàn)的幾率,大型養(yǎng)殖場(chǎng)急需引進(jìn)機(jī)械化輸送設(shè)備用于顆粒飼料的輸送。本文設(shè)計(jì)了一種新型的鏈?zhǔn)綀A管刮板輸送機(jī)專門用于輸送顆粒飼料,在滿足輸送產(chǎn)量的情況下,盡可能地減少顆粒飼料的破碎,可以實(shí)現(xiàn)多點(diǎn)下料,設(shè)備的投入成本不高,可以滿足中小型養(yǎng)殖場(chǎng)的需要。本課題展開了如下研究工作:(1)設(shè)計(jì)一臺(tái)優(yōu)良的刮板輸送機(jī),需要了解輸送物料的特性,本文對(duì)顆粒飼料的物理參數(shù)進(jìn)行了實(shí)驗(yàn)測(cè)量,得到了顆粒飼料的外觀尺寸、容重和密度;對(duì)顆粒飼料的力學(xué)性能進(jìn)行實(shí)驗(yàn)測(cè)量,得到了顆粒與顆粒、顆粒與鋼板、顆粒與聚氨酯板之間的碰撞恢復(fù)系數(shù)、靜摩擦系數(shù)和動(dòng)摩擦系數(shù),這些數(shù)據(jù)為輸送機(jī)的模擬仿真和設(shè)計(jì)提供了重要參數(shù)。(2)通過EDEM軟件模擬仿真出不同輸送速度下顆粒飼料發(fā)生碰撞時(shí)總能量損失,在保證輸送產(chǎn)量情況下,計(jì)算出了顆粒飼料在圓管內(nèi)的有效截面積,對(duì)總能量損失和有效截面積進(jìn)行加權(quán)平均運(yùn)算,采用最小二乘法對(duì)數(shù)據(jù)進(jìn)行擬合,運(yùn)用MATLAB軟件繪制了擬合曲線,得到了鏈?zhǔn)綀A管刮板輸送機(jī)的最優(yōu)輸送速度。(3)模擬仿真出最優(yōu)輸送速度后,對(duì)鏈?zhǔn)綀A管刮板輸送機(jī)的總體結(jié)構(gòu)進(jìn)行了設(shè)計(jì),先對(duì)輸送裝置的結(jié)構(gòu)進(jìn)行了優(yōu)化,再對(duì)刮板輸送的驅(qū)動(dòng)裝置進(jìn)行了設(shè)計(jì)計(jì)算和選型,包括對(duì)頭輪、大小鏈輪和鏈條的設(shè)計(jì)計(jì)算,以及對(duì)電機(jī)和減速機(jī)的選型,最后對(duì)頭輪軸進(jìn)行了設(shè)計(jì)和校核。設(shè)計(jì)完成后,通過SolidWorks軟件對(duì)主要零部件進(jìn)行三維實(shí)體建模并進(jìn)行了裝配。機(jī)器設(shè)計(jì)在材料選擇上更多考慮設(shè)備成本和壽命,機(jī)身采用6mm的無縫碳鋼管,刮板采用聚氨酯材質(zhì)可以提高設(shè)備的可靠性和壽命。
[Abstract]:With the development of animal husbandry, the scale of large-scale breeding farms is expanding. If the traditional breeding methods are adopted again, it will require a lot of manpower and material resources, and it will also increase the probability of infection problems in the feeding process. Large-scale farms urgently need to introduce mechanized transport equipment for the transport of pellet feed. In this paper, a new type of chain tube scraper conveyor is designed for conveying pellet feed. Under the condition of satisfying the transportation output, the crushing of pellet feed can be reduced as far as possible, and the multi-point feeding can be realized, and the input cost of the equipment is not high. Can meet the needs of small and medium farms. The research work is as follows: (1) to design an excellent scraper conveyer, it is necessary to understand the characteristics of the conveying material. In this paper, the physical parameters of the pellet feed are measured experimentally, and the appearance size of the granular feed is obtained. Bulk density and density; The impact recovery coefficient, static friction coefficient and dynamic friction coefficient between particle and particle, between particle and steel plate, between particle and polyurethane plate, between particle and grain, between particle and steel plate, between particle and polyurethane plate were measured experimentally. These data provide important parameters for the simulation and design of conveyors. (2) the total energy loss of particle feed under different conveying speeds is simulated by EDEM software, and the transportation output is guaranteed. The effective cross section area of pellet feed in the pipe was calculated, the total energy loss and the effective cross section area were calculated by weighted average operation, the data were fitted by the least square method, and the fitting curve was drawn by MATLAB software. The optimal conveying speed of the chain tube scraper conveyor is obtained. (3) after simulating the optimal conveying speed, the overall structure of the chain circular tube scraper conveyor is designed, and the structure of the conveying device is optimized. The driving device of scraper conveying is designed and calculated, including the design and calculation of the head wheel, the size chain wheel and the chain, as well as the selection of the motor and the reducer. Finally, the head axle is designed and checked. After the design is finished, the main parts are modeled and assembled by SolidWorks software. The machine design considers the equipment cost and life more in the material selection, the fuselage adopts the 6mm seamless carbon steel pipe, the scraper adopts the polyurethane material to enhance the equipment reliability and the service life.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD528.3
本文編號(hào)：2320300
[Abstract]:With the development of animal husbandry, the scale of large-scale breeding farms is expanding. If the traditional breeding methods are adopted again, it will require a lot of manpower and material resources, and it will also increase the probability of infection problems in the feeding process. Large-scale farms urgently need to introduce mechanized transport equipment for the transport of pellet feed. In this paper, a new type of chain tube scraper conveyor is designed for conveying pellet feed. Under the condition of satisfying the transportation output, the crushing of pellet feed can be reduced as far as possible, and the multi-point feeding can be realized, and the input cost of the equipment is not high. Can meet the needs of small and medium farms. The research work is as follows: (1) to design an excellent scraper conveyer, it is necessary to understand the characteristics of the conveying material. In this paper, the physical parameters of the pellet feed are measured experimentally, and the appearance size of the granular feed is obtained. Bulk density and density; The impact recovery coefficient, static friction coefficient and dynamic friction coefficient between particle and particle, between particle and steel plate, between particle and polyurethane plate, between particle and grain, between particle and steel plate, between particle and polyurethane plate were measured experimentally. These data provide important parameters for the simulation and design of conveyors. (2) the total energy loss of particle feed under different conveying speeds is simulated by EDEM software, and the transportation output is guaranteed. The effective cross section area of pellet feed in the pipe was calculated, the total energy loss and the effective cross section area were calculated by weighted average operation, the data were fitted by the least square method, and the fitting curve was drawn by MATLAB software. The optimal conveying speed of the chain tube scraper conveyor is obtained. (3) after simulating the optimal conveying speed, the overall structure of the chain circular tube scraper conveyor is designed, and the structure of the conveying device is optimized. The driving device of scraper conveying is designed and calculated, including the design and calculation of the head wheel, the size chain wheel and the chain, as well as the selection of the motor and the reducer. Finally, the head axle is designed and checked. After the design is finished, the main parts are modeled and assembled by SolidWorks software. The machine design considers the equipment cost and life more in the material selection, the fuselage adopts the 6mm seamless carbon steel pipe, the scraper adopts the polyurethane material to enhance the equipment reliability and the service life.
【學(xué)位授予單位】：河南工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD528.3
【參考文獻(xiàn)】
相關(guān)博士學(xué)位論文 前1條
1 胡勵(lì);機(jī)械產(chǎn)品設(shè)計(jì)中的顆粒離散元仿真技術(shù)及實(shí)現(xiàn)[D];武漢大學(xué);2013年
，本文編號(hào)：2320300
本文鏈接：http://sikaile.net/kejilunwen/kuangye/2320300.html
最近更新
教材專著
