In the present invention, the rotation unit is coupled to the joint unit. For this description to be true the acting length of the short link, the blue one, needs to be half as long as the active length of the green one and the pin that connects them must be . Either one of the base end part of the sub arm member or the base end part of the main arm member may be pivotably coupled to the second linearly-moving unit about the virtual straight line as the pivoting axis thereof. Application: Creates an approximate straight line .
Scott Russell - Founder - Proactivate Consulting LLC | LinkedIn Scott-Russell Mechanism.
Search Campbell, Scott: oil formation volume factor | SPE In each of the applets, drag the sliders to change the shape of the path of the free point to obtain the longest possible straight path. The present invention can suitably be used for, for example, the gripping application, placing application, transportation application in which it is requested to bring the tip end part of the main arm member close to right beside the base end part of the sub arm member. As point A moves vertically, point B moves horizontally. A Unified Approach to Interpreting Model Predictions Scott M. Lundberg, Su-In Lee; Nonbacktracking Bounds on the Influence in Independent Cascade Models Emmanuel Abbe, Sanjeev Kulkarni, Eun Jee Lee; Linear Convergence of a Frank-Wolfe Type Algorithm over Trace-Norm Balls Zeyuan Allen-Zhu, Elad Hazan, Wei Hu, Yuanzhi Li This mechanism is a modification of modified Scott-Russel'smechanism with the difference that the point Pdoes not slide along a straight line, but moves in a circular arc with centre O. a second ball screw arranged in parallel to the first ball screw; and, a second linearly-moving unit for being linearly moved by a rotation of the second ball screw, and, wherein either one of the base end part of the sub arm member or the base end part of the main arm member is pivotably coupled to the second linearly-moving unit about the virtual straight line as the pivoting axis thereof. The proposed stage showed the first natural frequency of 57 Hz and the maximum stroke of 122.84 m, 108.46 m, 0.685 mrad in the x-, y-, and -direction, respectively. Patent Document 1 discloses a Scott Russell mechanism applied to an industrial robot. an angle changer for changing a coupling angle between the main arm member and the sub arm member. The Scott Russell mechanism device of, 14. A Scott Russell mechanism device pivotably couples a main arm member and a sub arm member to each other, as well as it pivotably couples a joint unit to a tip end part of the main arm member. Classified in two types: 1- Exact straight line mechanisms:- Paucellier mechanism, Hart mechanism, Scott-Russel mechanism, Kempe mechanism,etc. Moreover, with the industrial robot according to Patent Document 1, both of the arm members are rotated (turned) about the screw shaft 21 as a rotation center (turning center), then all of the industrial robot including the screw shaft 21 is turned, and thus a problem arises that a drive torque for the turning increases. HVAC: Heating, Ventilation & Air-Conditioning, Peaucellier Exact Straight Line Mechanism, Scott-Russell Exact Straight Line Mechanism, This post is part of the series: Kinematics - Design of Mechanisms, How to Calculate Cement, Sand and Aggregates in a Beam | Step by Step, Kinematics - Design of Mechanisms: Introduction, Kinematics Design of Mechanisms: Kinematic Inversion, Kinematics Actuation of Machines: Part I Electrical Actuation, Kinematics Actuation of Machines: Part II Hydraulic Actuation, Kinematics Actuation of Machines: Part III Pneumatic Actuation, Kinematics - Analysis of Mechanisms: Methods and Techniques, Kinematics - Synthesis of Mechanisms: Methods and Techniques, Kinematics - Special Mechanisms: Straight Line Mechanisms - II. This mechanism can generate an exact straight line if the link dimensions are correct.
Development of a highly efficient bridge-type mechanism based on A Scott Russell mechanism device, comprising: a sub arm member pivotably coupled to the main arm member by a coupling shaft; and. Relative motion angles other than 90 degrees are possible by simply rotating the fixed guide. Furthermore, in the Scott Russell mechanism device according to the present invention, a base end part of the main arm member and a base end part of the sub arm member that is on the opposite side from the coupling side of the sub arm member are positioned on the same virtual straight line. Therefore, the gripping unit can be pivoted proximally to the workpiece which is the gripping target, and the Scott Russell mechanism device including a griping function suitable for such a gripping application can be provided. In the present invention, the rotation unit is coupled to the joint unit. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). PATENTED CASE, Free format text: The present invention relates to a device applied with a Scott Russell mechanism where a main arm member and a sub arm member are coupled to each other and a coupling angle therebetween is changeable, and particularly relates to a Scott Russell mechanism device that can attach units to the tip end side of the main arm member and change postures of the units variously.
There are many mechanisms based on slider crank linkage which can generate exact straight lines for limited intervals. The present invention can be switched, as for the joint unit attached to the tip end of the main arm, to the total of two ways of pivoting including the pivot cooperating with the angle change of the arm members at the coupling position and the pivot independent from the angle change, and thus the Scott Russell mechanism device can suitably be used for various applications. Therefore, since the rotor of the rotation unit can rotate independently of the displacement of the tip end part of the main arm member, the displacement amount of the rotor of the rotation unit coupled to the tip end side of the main arm member can be increased, and the application of the Scott Russell mechanism device according to the present invention further expands. A pivoting unit having a pivoting part that is pivotable centering on an axis in parallel to the pivoting axis of the joint unit may be coupled to the rotor of the rotation unit.
(PDF) Mechanics of Machinery I | Tareq shaban - Academia.edu The Scott Russel mechanism converts linear motion in one direction to another direction. In the present invention, the base end part of either one of the sub arm member or the main arm member is linearly movable by the second ball screw. A pivoting axis of the pivot of the joint unit may be in parallel to an axis of the pivots of the main arm member and the sub arm member at the coupling position. 3. The proposed mechanism is applied in an internal materials movement system using autonomous guided vehicles (AGVs) for supporting logistics processes along the supply chain, aiming to replace the current manual operations. Specifically, the tip end part of the main arm member can be moved by only moving the base end part of the main arm member, by only moving the base end part of the sub arm member, or by moving both of the base end parts of both of the arm members, respectively. A Scott Russell linkage is a linkage which translates linear motion through a right angle. Therefore, a plurality of variations can be provided to the method of moving the base end part of both of the arm members, and the tip end part of the main arm member can move flexibly. Further, in the present invention, the gripping unit is attached to the rotor of the rotation unit. The main arm member is formed into a boomerang-like shape such that the coupling position is curved to detour to an opposite side from the side where the sub arm member is positioned. Manufacturing methods for gripping devices, robot devices, control methods, control programs, recording media, and articles. PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY. The construction of this mechanism is such that the point which is connected to the crank moves in a circular path and the point traversing the straight line is selected as the output point. Peaucellier linkage can convert an input circular motion to the exact straight line motion.
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Scott Russell mechanism device - SQUSE Inc. Scott Russell Mechanism - acculasopa In the present invention, when the coupling angle is changed so that the base end parts of the main arm member and the sub arm member are most separated from each other, the degree of the curve of the main arm member is defined such that the second section of the main arm member is in a substantially parallel orientation to the linear sub arm member. 15, 2011, WIPO, 4 pages. It is evident from the figure that this mechanism is made up of isosceles triangles, AB, AC and AO2 are of equal lengths. 38. The Scott-Russell mechanism gives a theoretically linear motion by using a linkage form with three portions of the links all equal, and a rolling or sliding connection. Scott Russell mechanism developed by John Scott Russell (1808-1882), although already patented in 1803 by watchmaker William Freemantle, gives a theoretically linear motion by using a linkage form with three portions of the links all equal, and a rolling or sliding connection. Learn CAD with SolidWorks 2008- Create new sketch tutorial by John Sinitsky, Creating new file in CAD program - Overview of SolidWorks2008 Menu by John Sinitsky.
Scott Russell Mechanism 2 | PDF | Line (Geometry) | Acceleration - Scribd These displacement amplifier mechanisms often have a proper amplification ratio capable of large working strokes; however, their low resonant frequency limits their application in high-performance jet dispensers.
SCOTT RUSSEL MECHANISM [THEORY OF MACHINES] - YouTube Moreover, in the present invention, the pivoting member is pivotably coupled to the joint unit and the rotation unit having the rotor is coupled to the pivoting member. Additional . A dialindicator is a precision measuring tool that uses a needle or pointer to display a measurement on a dial. Japanese Patent Office, International Search Report of PCT/JP2011/058124, Jun.
An XYZ micromanipulator for precise positioning applications The SR mechanism in combination with a parallelogram mechanism enables. Two equal length length links are connected to the opposite corners of the rhombus at one end and to a common fixed point at the other ends. In the present invention, the gripping unit is attached to the rotor of the rotation unit. cylindrical coordinate type or polar coordinate type, Programme-controlled manipulators characterised by positioning means for manipulator elements, Programme-controlled manipulators characterised by positioning means for manipulator elements with articulated links, MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING, ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL, Gearings comprising primarily only links or levers, with or without slides, Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane, Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying or interconverting oscillating or reciprocating motions, GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNICAL SUBJECTS COVERED BY FORMER USPC, TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS, TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION, Multiple controlling elements for single controlled element, United Kingdom Atomic Energy Authority, London, Gilman Engineering & Manufacturing Co., Llc, The United States Of America As Represented By The Secretary Of The Navy, The Regents Of The University Of Michigan. 9.8. This mecha- tion of point E, as shown in Figure 2 (a) [8-10]. Moreover, in the present invention, the gripping unit is attached to the tip end side of the pivoting unit. wherein the main arm member is formed linearly in a first section extending from the base end part to the part corresponding to the coupling position and in a second section extending from the part corresponding to the coupling position to the tip end part, and the part corresponding to the coupling position is curved, and. a first ball screw arranged in parallel to the virtual straight line; and, a first linearly-moving unit for being linearly moved by a rotation of the first ball screw, and, wherein either one of the base end part of the main arm member or the base end part of the sub arm member is pivotably coupled to the first linearly-moving unit about the virtual straight line as the pivoting axis thereof, and. wherein a rotation unit having a rotor is coupled to the pivoting member. Priority claimed from JPPCT/JP2011/058124. The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. Therefore, a plurality of variations can be provided to the method of moving the base end part of both of the arm members, resulting in being able to flexibly perform the moving of the tip end part of the main arm member.