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邵陽學(xué)院畢業(yè)設(shè)計（論文）
內(nèi)容提要
滌綸短纖維后處理設(shè)備七輥牽伸機牽伸輥屬于牽伸機的工作部分，合理設(shè)計將提高七輥牽伸機的性能。牽伸機是紡絲后處理的主要設(shè)備之一，根據(jù)紡絲的工藝要求來確定牽伸機的數(shù)量和功率。本次設(shè)計的七輥牽伸機主要是為了提高年產(chǎn)量，從牽伸機組的整體設(shè)計出發(fā)，按照總牽伸倍數(shù)合理布局各級牽伸倍數(shù)，按照年產(chǎn)量計算最大牽伸旦數(shù)，最大牽伸力；按照牽伸力求出第三牽伸機輥筒的受力情況，依據(jù)最大輥筒受力來對輥筒進行強度、剛度校核，及其螺釘?shù)男：恕?
根據(jù)受力情況對牽伸輥和牽伸軸進行結(jié)構(gòu)設(shè)計，要求結(jié)構(gòu)簡單、加工方便、經(jīng)濟可行。牽伸輥的聯(lián)接的方式采用法蘭聯(lián)接，比內(nèi)夾套聯(lián)接結(jié)構(gòu)簡單、裝配方便。合理設(shè)計通水牽伸輥部件，利用分配板使進水和出水流量均勻，充分帶走熱量。參照現(xiàn)有的七輥牽伸機設(shè)備，設(shè)計出滿足工作要求的牽伸輥，以達到大容量生產(chǎn)滌綸短纖維的目的，滿足現(xiàn)代高速紡織機械的發(fā)展。
Abstract
Polyester staple aftertreatment equipment 7-roller drawing machine’s rollers are work part of the drawing machine. And the performance of 7-roller drawing machine will be improved if it’s correctly designed. The drawing machine is one of the main equipments in the filature aftertreatment. According to the filature processing requirement we can decide the number and power of the drawing machine. This 7-roller drawing machine design is to enhance the annual output. Taking the drawing machine group as an organic whole design, through the total drawing multiple properly distributing each class drawing multiple, according to the annual output calculating the maximal drawing denier and maximal drawing tension, then on the basis of the drawing tension figuring out the force of third drawing machine roller, and according to the maximal roller force checking the intensity and rigidity and proofing the bolt.
On the basis of the roller’s force designing the frames of the drawing rollers and drawing shafts, which require simple frames, convenient manufacturing, economical and feasible. The link method of the drawing roller adopts flanges, which compares with the inner sleeve link has simple structure, convenient assemblage. Correctly designing the watering drawing roller parts, using the distributing board making the in water and out water equably flowing, and taking out the heat. Consulting the existent 7-roller drawing machine equipments, designing drawing rollers which satisfy the work requirement, and reach the objective of a large amount of polyester staple are produced, meet contemporary high-speed textile mechanical development.
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