机械5

大枣去核机的设计 摘要 随着生活质量的改善，人们对养生保健的需求日益增长，大枣制品被越来越多的人喜爱。如枣泥、枣干、大枣牛奶等等制品。去核是很多果类加工的处理工序,对于大枣而言,去核加工尤为重要。随着加工工业的发展，各类大枣制品需求上升，自然对食品质量也十分注重。因此，大枣去核机，将注重提高去核的效率，以及果肉的干净与完整。以此为目标，去设计合理的机械。要求全自动，多方位。通过分析比对当前市场上的一些大枣去核机，确定要解决的主要问题，即冲击力度太大，导致果肉破碎，亦或者是冲击力度太小，不能完整去核。除此之外，还可能出现一些定位出现偏差，导致整体运动出现衔接不良等等问题。 本文主要内容，整体传动方案设定，确定运动方案，对执行机构零件，进行尺寸计算。为了确保去核机的各部分设计的科学性、合理性，利用CAD等绘图软件，对槽轮机构、链轮机构这两部分，作着重研究说明。包括运动特性，配合性等等。 本机主要构成部分有传送带、冲核机构、槽轮机构等。用合理的联结方式，使槽轮机构与曲柄滑块运作，带动冲核杆，对大枣进行精确冲核，提高生产效率。 通过根据初始数据的计算，选择合适的电动机。根据所确定的传动比，分析传动零件的具体参数。除此之外，还要对V带传送做进一步分析。根据查表与已知数据相结合，确定中心距、带速、基准长度等参数，进而确定V带的类型。对执行机构中的冲压机构进行分析。大枣从枣斗进入后，首先要进行定位，使做间歇运动的旋转盘工作台与上下往复运动的冲针相互配合，使去核更加准确高效。再依次对轴系零件进行计算并校核，如轴疲劳强度的校核计算，键联结的校核计算，等等，进而选择合适的滚动轴承。 最后选择合适的润滑方式，对传动系统零部件进行润滑与密封。 关键词去核；传动方案；执行机构；槽轮机构 Abstract With the improveme
nt of quality of life a
nd the i
ncreasi
ng dema
nd for health care, jujube products are loved by more a
nd more people. Such as jujube mud, dried jujube, jujube milk a
nd other products. The core removal is the processi
ng procedure of ma
ny fruit processi
ng, especially for the red jujube. With the developme
nt of processi
ng i
ndustry, the dema
nd for all ki
nds of jujube products is risi
ng. Therefore, jujube de
nuclearizatio
n machi
ne,will focus o
n improvi
ng the efficie
ncy of de-
nucleatio
n, aswell as pulp clea
n a
nd complete. With this as the goal, to desig
n reaso
nable machi
nery. Full automatic, multi-directio
nal. By a
nalyzi
ng a
nd compari
ng some jujube de
nuclearizatio
n machi
nes i
n the curre
nt market, it is determi
ned to solve the problem. The mai
n problem is that the impact is too stro
ng, resulti
ng i
n pulp broke
n, or too small to be completely demi
neralized. I
n additio
n, there may also appear some positio
ni
ng errors, resulti
ng i
n the overall moveme
nt of poor cohesio
n a
nd other problems. The mai
n co
nte
nt of this paper, the overall tra
nsmissio
n scheme setti
ng, determi
ne the motio
n pla
n, the actuator parts, size calculatio
n. I
n order to e
nsure the scie
ntific a
nd reaso
nable desig
n of each part of the de
nuclearizer, this paper mai
nly studies a
nd explai
ns the slotwheel mecha
nism a
nd the sprocket mecha
nism by usi
ng CAD a
nd other drawi
ng software. I
ncludi
ng the characteristics of motio
n, coordi
natio
n, a
nd so o
n. The mai
n compo
ne
nts of the machi
ne are selected roller, co
nveyor belt, pu
nchi
ng mecha
nism, troughwheel mecha
nism a
nd so o
n. Usi
ng reaso
nable co
n
nectio
nway, the groovewheel mecha
nism a
nd cra
nk slider operate, drive the pu
nchi
ng rod, carry o
n the accurate pu
nchi
ng of the red date, a
nd improve the productio
n efficie
ncy. Accordi
ng to the calculatio
n of the i
nitial data, the suitable motor is selected. Accordi
ng to the determi
ned tra
nsmissio
n ratio, the specific parameters of the tra
nsmissio
n parts are a
nalyzed. I
n additio
n, V-ba
nd tra
nsmissio
n should be further a
nalyzed. Accordi
ng to the combi
natio
n of look-up table a
nd k
now
n data, the parameters such as ce
nter dista
nce, ba
ndvelocity a
nd datum le
ngth are determi
ned, a
nd the type of V-ba
nd is determi
ned. To carry o
n the a
nalysis to the pu
nchi
ng mecha
nism i
n the executive mecha
nism. After e
nteri
ng the jujube bucket, the jujube should be positio
ned first, so that the rotati
ng tablewith i
ntermitte
nt moveme
nt ca
n cooperatewith the pu
nchi
ng
needle of the reciprocati
ng moveme
nt, so that the
nucleatio
n ca
n be more accurate a
nd efficie
nt. The
n the shafti
ng parts are calculated a
nd checked i
n tur
n, such as the fatigue stre
ngth of the shaft. Key co
n
nectio
n check calculatio
n, a
nd so o
n, a
nd the
n select the appropriate rolli
ng beari
ng. Fi
nally, the proper lubricatio
n method is chose
n to lubricate a
nd seal the parts of tra
nsmissio
n system. Keywords： de
nucleate tra
nsmissio
n scheme actuator ge
neva mecha
nism 目录 摘要I Abstract II 1绪论1 1.1研究背景及意义1 1.2研究内容1 1.3研究方法1 2方案设计3 2.1概述4 2.2执行系统4 2.3传动系统6 3传动装置8 3.1电动机的选择8 3.2确定传动比9 3.3传动装置的动力参数9 3.3.1各轴转速9 4传动零件10 4.1普通V带传送10 4.2直齿锥齿轮11 4.3联轴器14 5执行机构16 5.1冲压机构16 5.2槽轮机构18 6轴类零件21 6.1轴1的结构设计21 6.2滚动轴承设计计算26 6.3键联结校核29 总结30 致谢31 参考文献33