本文選題：雞腸 + 剖切��； 參考：《山東農(nóng)業(yè)大學(xué)》2017年碩士論文

【摘要】：本文在研究了雞、鴨腸幾何特征參數(shù)和相關(guān)力學(xué)特性的基礎(chǔ)上,設(shè)計(jì)并試制了一種針對(duì)雞、鴨腸進(jìn)行自動(dòng)剖切清洗的小型裝置,該裝置利用變頻技術(shù),可適應(yīng)不同作業(yè)速度的剖切,調(diào)速方便,裝置總體尺寸小,生產(chǎn)成本低。既能適應(yīng)單機(jī)作業(yè),又能適應(yīng)小規(guī)模生產(chǎn)的要求,也能以規(guī)模化生產(chǎn)的前處理工序?yàn)橐劳?作為腸體的后處理設(shè)備,以滿足流水化作業(yè)要求。在查閱了大量資料,了解了雞、鴨腸組織結(jié)構(gòu)特點(diǎn)的基礎(chǔ)上,對(duì)屠宰加工車間中,分腺胃后的雞腸腸體的外觀幾何特征進(jìn)行了測(cè)量;在自制夾具的基礎(chǔ)上,利用WDW-5E微機(jī)控制電子式萬(wàn)能實(shí)驗(yàn)機(jī),以5 mm/min的速度,對(duì)雞腸的極限抗剪切力進(jìn)行了測(cè)量;以實(shí)際測(cè)量值為依據(jù)并結(jié)合生產(chǎn)實(shí)際,對(duì)腸體輸送模塊、剖切模塊等進(jìn)行了理論分析和計(jì)算,實(shí)現(xiàn)了剖腸裝置的理論化、參數(shù)化設(shè)計(jì);按照經(jīng)驗(yàn)數(shù)值和設(shè)計(jì)尺寸,對(duì)裝置進(jìn)行了三維實(shí)體建模和虛擬樣機(jī)的裝配,進(jìn)行了干涉檢查和整機(jī)的評(píng)估。運(yùn)用SolidWorks中的simulation模塊和NX8.5中的FEM高級(jí)仿真模塊,對(duì)腸體夾緊鏈節(jié)進(jìn)行了結(jié)構(gòu)靜力學(xué)分析及評(píng)估,得出了鏈節(jié)受力后的應(yīng)力集中區(qū)域和節(jié)點(diǎn)位移趨勢(shì)。根據(jù)夾緊鏈節(jié)夾持時(shí)腸體的形狀,建立腸體模型,并對(duì)其進(jìn)行了靜力學(xué)仿真分析,根據(jù)有限元解算的結(jié)果及分析表明:鏈節(jié)邊緣及導(dǎo)槽邊緣存在的應(yīng)力集中是腸體擠壓印痕產(chǎn)生的主要原因,這為鏈節(jié)結(jié)構(gòu)的改進(jìn)和優(yōu)化指明了方向。結(jié)合生產(chǎn)實(shí)際和FEM分析結(jié)果,通過(guò)改變導(dǎo)槽位置、增大邊緣過(guò)渡圓角以及調(diào)整滾輪位置,可有效減少印痕的產(chǎn)生,提高了產(chǎn)品的品質(zhì)。鏈節(jié)結(jié)構(gòu)改進(jìn)后效果明顯,將間距調(diào)節(jié)擋板改成滾輪形式,減小了鏈節(jié)的磨損,優(yōu)化了速度的調(diào)節(jié)與控制。對(duì)傳動(dòng)系統(tǒng)中,多軸鏈傳動(dòng)進(jìn)行了設(shè)計(jì)和理論計(jì)算,并按照鏈輪小包角條件,驗(yàn)證了不需加裝惰輪,可以實(shí)現(xiàn)無(wú)跳齒和連續(xù)嚙合傳動(dòng)。樣機(jī)實(shí)驗(yàn)表明:在兩個(gè)剖切系統(tǒng)下,線速度與理論值0.4 m/s接近時(shí),每小時(shí)可加工約2000條雞腸腸體,若通過(guò)變頻器調(diào)速,可適當(dāng)提高加工效率。腸體剖切率在93%以上,可滿足使用要求。
[Abstract]:Based on the study of geometric parameters and related mechanical properties of chicken and duck intestines, a small device for automatic cutting and cleaning of chicken and duck sausage was designed and trial-manufactured. The device uses frequency conversion technology. It is suitable for cutting at different operating speed, convenient speed regulation, small overall size and low production cost. It can be used not only for single machine operation, but also for small-scale production. It can also be used as the reprocessing equipment of enteric body to meet the requirement of running water operation based on the pre-treatment process of large-scale production. On the basis of consulting a large amount of data and understanding the characteristics of the tissue structure of chicken and duck intestines, the appearance and geometric characteristics of chicken intestines after being divided into glands and stomach in slaughtering and processing workshop were measured, and on the basis of self-made jigs, The ultimate shear resistance of chicken sausage was measured with WDW-5E microcomputer controlled electronic universal experimental machine at a speed of 5 mm/min. The theoretical analysis and calculation of the cutting module are carried out to realize the theoretical and parameterized design of the sausage device, and the 3D solid modeling and virtual prototype assembly are carried out according to the empirical value and the design size. Interference inspection and evaluation of the whole machine were carried out. Using the simulation module in SolidWorks and the FEM advanced simulation module in NX8.5, the statics analysis and evaluation of the intestinal clamping chain joint are carried out, and the stress concentration area and the displacement trend of the joint are obtained. According to the shape of the intestinal body during clamping, the model of intestinal body was established and analyzed by static simulation. According to the results and analysis of finite element method, it is shown that the stress concentration at the edge of the chain joint and the edge of the guide groove is the main cause of the indentation of the indentation of the intestinal body, which indicates the direction for the improvement and optimization of the structure of the chain joint. Combined with the actual production and FEM analysis results, by changing the slot position, increasing the edge transition angle and adjusting the roller position, the printing mark can be effectively reduced and the quality of the product can be improved. The effect of the chain joint structure improvement is obvious. The pitch adjusting baffle is changed into the roller form, the wear of the chain joint is reduced, and the adjustment and control of the speed are optimized. The design and theoretical calculation of multi-axis chain drive are carried out. According to the condition of small packet angle of sprocket, it is verified that there is no need to install idler wheel, which can realize no gear jump and continuous meshing transmission. The prototype experiment shows that when the linear velocity is close to the theoretical value of 0.4 m / s, about 2000 chicken intestines can be processed per hour under two cutting systems. If the speed is adjusted by frequency converter, the processing efficiency can be improved appropriately. The rate of intestinal dissection was more than 93%, which could meet the requirement of application.
【學(xué)位授予單位】：山東農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TS251.3

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