A Study on a Novel Quick Return Mechanism

نویسندگان

  • Wen-Hsiang Hsieh
  • Chia-Heng Tsai
چکیده

This work aims to propose a novel design for quick return mechanisms, and the new mechanism is composed by a generalized Oldham coupling and a slider-crank mechanism. First, the kinematic dimensions that affect the time ratio are found by investigating the geometry of the proposed design. By transforming into its kinematically equivalent mechanism, and then the design equations of time ratio are derived. Furthermore, a design example is given for illustration. Moreover, the design is validated by kinematic simulation using ADAMS software. Finally, a prototype and an experimental setup are established, and the experiment is conducted. The results show that proposed new mechanism is feasible and with reasonable accuracy. In addition, it is more compact and easier to be balanced dynamically than a conventional quick return linkage. ÉTUDE D’UN MÉCANISME À RETOUR RAPIDE INNOVATEUR RÉSUMÉ Nous proposons une conception innovatrice d’un mécanisme à retour rapide composé d’un accouplement de style Oldham et d’un système bielle-manivelle. Pour commencer, en étudiant la géométrie du concept proposé, on établit les dimensions cinématiques qui affectent le rapport temps. En les transformant en un mécanisme cinématique équivalent, nous trouvons la dérivée des équations de rapport temps, et pour illustrer le concept on donne un exemple. De plus, le concept est validé par une simulation cinématique à l’aide du logiciel ADAMS. Finalement, un prototype est crée, et un cadre expérimental est établi pour mener l’expérience. Les résultats révèlent que le mécanisme proposé est réalisable et sa précision est acceptable. En outre, il est plus compact et il est plus facile d’effectuer l’équilibrage dynamique que pour un mécanisme à retour rapide conventionnel. Transactions of the Canadian Society for Mechanical Engineering, Vol. 33, No. 3, 2009 487

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Novel Adapted Multi-objective Meta-heuristic Algorithm for a Flexible Bi-objective Scheduling Problem Based on Physics Theory

  We relax some assumptions of the traditional scheduling problem and suggest an adapted meta-heuristic algorithm to optimize efficient utilization of resources and quick response to demands simultaneously. We intend to bridge the existing gap between theory and real industrial scheduling assumptions (e.g., hot metal rolling industry, chemical and pharmaceutical industries). We adapt and evalua...

متن کامل

Analysis of the No Return Point Hypothesis: The Effect of Audio and Visual Stimuli in the Fast Movements Inhibition

Background. The No Return Point hypothesis is one of the research areas that has been done in line with the motor program. In this hypothesis emphasized an inability to inhibition move after its start by the motor program. Several factors are affecting the mechanism of this inhibition. Objectives. In this study, we investigate the effects of audio and visual stimuli on blocking quick moves to ...

متن کامل

Modeling and Simulation of the Dynamics of the Quick Return Mechanism: A Bond Graph Approach

This paper applies the multibond graph approach for rigid multibody systems to model the dynamics of general spatial mechanisms. The commonly used quick return mechanism which comprises of revolute as well as prismatic joints has been chosen as a representative example to demonstrate the application of this technique and its resulting advantages. In this work, the links of the quick return mech...

متن کامل

A novel approach in robust group decision making for supply strategic planning

Long-term planning is a challenging process for dealing with problems in big industries. Quick and flexible process of responding to the existing variable requirements are considered in such problems. Some of important strategic decisions which should be made in this field are, namely the way that manufacturing facilities should be applied as well as assignment and design the system of delivery...

متن کامل

Functional Results of Unstable (Type 2) Distal Clavicle Fractures Treated with Superior Anterior Locking Plate

Background: The treatment of distal clavicle fracture is always a challenge, as it is mostly unstable and has higherrate of delayed union, malunion, non-union and associated acromioclavicular arthritis. So the management of thesefractures remains controversial. The purpose of this study is to evaluate the functional results of Type 2 distal endclavicle fractures treated with superior anterior l...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2009