55 research outputs found
A Method for Assessing the Sustainability of Design in Developing World Projects
Projects for the developing world usually find themselves at the bottom of an engineer’s priority list. There is often very little engineering effort placed on creating new products for the poorest people in the world. This trend is beginning to change now as people begin to recognize the potential for these projects. Engineers are beginning to try and solve some of the direst issues in the developing world and many are having positive impacts. However, the conditions needed to support these projects can only be maintained in the short term. There is now a need for greater sustainability.
Sustainability has a wide variety of definitions in both business and engineering. These concepts are analyzed and synthesized to develop a broad meaning of sustainability in the developing world. This primarily stems from the “triple bottom line” concept of economic, social, and environmental sustainability. Using this model and several international standards, this thesis develops a metric for guiding and evaluating the sustainability of engineering projects. The metric contains qualitative questions that investigate the sustainability of a project. It is used to assess several existing projects in order to determine flaws. Specifically, three projects seeking to deliver eyeglasses are analyzed for weaknesses to help define a new design approach for achieving better results.
Using the metric as a guiding tool, teams designed two pieces of optometry equipment: one to cut lenses for eyeglasses and the other to diagnose refractive error, or prescription. These designs are created and prototyped in the developed and developing worlds in order to determine general feasibility. Although there is a recognized need for eventual design iterations, the whole project is evaluated using the developed metric and compared to the existing projects. Overall, the success demonstrates the improvements made to the long-term sustainability of the project resulting from the use of the sustainability metric
Equipment for on-line visual detection of appearance of ham sausages
本发明涉及食品检测设备,具体地说是一种火腿肠外观在线视觉检测设备,包括换向装置、胶辊传送带、在线检测装置及剔除装置,在胶辊传送带上、自开始端至输出端依次设有换向装置、在线检测装置及剔除装置,火腿肠顺序地由沿其轴向方向的运动通过换向装置落到胶辊传送带上,所述剔除装置将外观存在问题的火腿肠剔除。本发明可以将火腿肠整齐地排序,通过在线检测装置视觉对火腿肠的外观进行自动化检测并剔除不合格产品,很好地解决了现有人工火腿肠外观检测中耗费大量人力、检测效率低、准确率低的问题
Equipment for on-line visual detection of appearance of ham sausages
本发明涉及食品检测设备,具体地说是一种火腿肠外观在线视觉检测设备,包括换向装置、胶辊传送带、在线检测装置及剔除装置,在胶辊传送带上、自开始端至输出端依次设有换向装置、在线检测装置及剔除装置,火腿肠顺序地由沿其轴向方向的运动通过换向装置落到胶辊传送带上,所述剔除装置将外观存在问题的火腿肠剔除。本发明可以将火腿肠整齐地排序,通过在线检测装置视觉对火腿肠的外观进行自动化检测并剔除不合格产品,很好地解决了现有人工火腿肠外观检测中耗费大量人力、检测效率低、准确率低的问题
Full-automatic ammunition product chamber gauge inspection measuring device
本发明涉及一种自动测量设备,具体地说是一种全自动弹药产品合膛测量设备。包括架体、合膛规、夹具、配重系统、驱动装置、直线导轨、力传感器及皮带传动装置,其中架体的一侧沿竖直方向设有直线导轨和皮带传动装置,所述驱动装置设置于架体的底部、并与所述皮带传动装置传动连接,合膛规通过力传感器安装在皮带传动装置上、并与直线导轨滑动连接,合膛规与安装在架体顶部的配重系统连接,夹具设置于架体的底部、并位于合膛规的下方,皮带传动装置驱动合膛规沿直线导轨上下滑动,从而对安装在夹具上的弹药产品进行测量。本发明对产品进行自动测量,实现对产品的尺寸和形位公差的测量,并可快速更换量具以适应生产线更换产品
Removing device of ham-sausage appearance on-line vision detecting equipment
本实用新型涉及食品检测设备,具体地说是一种火腿肠外观在线视觉检测设备的剔除装置,该剔除装置倾斜地安装在输送火腿肠的胶辊传送带的上方、包括伺服电机、同步皮带、同步带轮、剔除片及支架,其中支架倾斜地安装在胶辊传送带的上方,同步带轮可转动地安装在支架上、并由安装在支架上的伺服电机驱动,所述同步皮带连接在同步带轮上,在同步皮带上设有剔除片。本实用新型可将经在线检测装置检测存在外观质量问题的火腿肠剔除,自动化控制,反应速度快,作业效率高,剔除速度可达到10根/秒
Full-automatic ammunition product chamber gauge inspection measuring device
本发明涉及一种自动测量设备,具体地说是一种全自动弹药产品合膛测量设备。包括架体、合膛规、夹具、配重系统、驱动装置、直线导轨、力传感器及皮带传动装置,其中架体的一侧沿竖直方向设有直线导轨和皮带传动装置,所述驱动装置设置于架体的底部、并与所述皮带传动装置传动连接,合膛规通过力传感器安装在皮带传动装置上、并与直线导轨滑动连接,合膛规与安装在架体顶部的配重系统连接,夹具设置于架体的底部、并位于合膛规的下方,皮带传动装置驱动合膛规沿直线导轨上下滑动,从而对安装在夹具上的弹药产品进行测量。本发明对产品进行自动测量,实现对产品的尺寸和形位公差的测量,并可快速更换量具以适应生产线更换产品
Ammunition fuse full automatic screwing measuring device
本发明涉及弹药的自动安装系统,具体的说是一种弹药引信全自动拧紧测量设备。包括自动传输线体、配套托盘、定位夹紧手抓、引信拧紧测量专机,其中配套托盘放置在自动传输线体上、并可滑动,所述定位夹紧手抓安装于自动传输线体一端,所述引信拧紧测量专机安装在自动传输线体一侧,并与所述定位夹紧手抓相对应,进行全自动拧紧和测量操作。本发明实现了弹药生产领域中危险零部件的无人隔离全自动安装检测,极大提高了弹药生产的安全度。</p
Reversing device of online visual detection equipment of appearance of ham sausages
本发明涉及食品检测设备,具体地说是一种火腿肠外观在线视觉检测设备的换向装置,包括换向转轮、挡板、支架及伺服电机,其中换向转轮可旋转地安装在支架之间、并通过安装在支架上的伺服电机驱动,在换向转轮的圆周表面均布有多个拨片,相邻拨片之间留有容置火腿肠的空间;所述支架位于火腿肠进入的一侧开有入肠口,在支架之间、换向转轮的一侧设有挡板,该挡板的底端与所述入肠口相对应。本发明通过挡板上的圆锥板与换向转轮之间的间距逐渐减小,可以使火腿肠减速;进入换向装置的火腿肠由换向转轮带动,由沿火腿肠轴向运动改变为垂直火腿肠轴线运动,并可以使火腿肠依次、整齐地落到火腿肠视觉检测设备上,以适于火腿肠的外观视觉检测
Ham sausage sequential conveying device
本实用新型涉及食品加工生产线上的设备,具体地说是一种火腿肠排序输送装置,包括支座、固定板、围板、转盘、驱动机构、刷辊机构及上下水平加速带机构,固定板倾斜地安装在支座上,固定板上设有围板,围板内设有通过驱动机构带动旋转的转盘;在固定板高的一侧安装有刷辊机构及上下水平加速带机构,刷辊机构包括刷辊及第二传动电机,刷辊通过第二传动电机驱动、位于转盘的上方,刷辊及第二传动电机距离转盘的高度可调;上下水平加速带机构包括上下并排设置的两条传送带、分别通过两个传动电机驱动,位于上方的传送带高度可调,两条传送带之间为火腿肠输送通道。本实用新型具有自动化程度高、工作效率高、工作可靠、稳定性好、适应范围广等优点
Multi-size automatic depth detection device
本发明涉及阶梯孔自动深度检测技术领域,具体的说是一种多尺寸自动深度检测装置。包括滑动检测单元、检测架体单元及升降滑台,其中升降滑台通过滑块与检测架体单元滑动连接;滑动检测单元包括深度测头、直线驱动机构及夹紧定位机构,其中夹紧定位机构设置于升降滑台的下方,用于夹紧工件;直线驱动机构设置于升降滑台的上方,且输出端与深度测头连接,深度测头与夹紧定位机构同轴安装,且用于测量工件上的不同深度尺寸。本发明的滑动检测单元上设有多个测量机构,可同时检测多个零部件,极大的提高了生产效率;测量机构采用同心结构进行检测,提高了各阶梯面的检测精度
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