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Two-freedom degree two-rotation parallel mechanism

A degree of freedom, parallel technology, applied in manipulators, program-controlled manipulators, manufacturing tools, etc., can solve problems such as complex mechanisms, small workspace, and difficult kinematics solutions.

Inactive Publication Date: 2009-07-22
JIANGSU POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, (1) kinematics is difficult to solve; (2) the motion platform pose is a strong coupling of input, which is not conducive to control; (3) the mechanism is complex, so that the work space is small; (4) it is difficult to manufacture high-precision ball pairs Wait

Method used

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Embodiment Construction

[0008] The technology of the present invention will be further described below by means of accompanying drawings and examples.

[0009] attached figure 1 It is a structural schematic diagram of the present invention, which consists of a dynamic platform 1, a static platform 0, and three branch chains connecting the dynamic platform 1 and the static platform 0. It is characterized in that the first branch chain is only a ball pair S 4 , its two ends are respectively connected with the dynamic platform 1 and the static platform 0; the second branch chain consists of a ball pair S 3 , a revolving pair R 7 and a mobile vice P 1 Composition, where the ball vice S 3 Connected with the moving platform 1, the revolving pair R 7 It is connected with the static platform 0; the third branch chain is composed of two ball pairs S 5 , S 6 and a mobile vice P 2 Composed of two ball vice S 5 , S 6 They are respectively connected with the moving platform 1 and the static platform 0, a...

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Abstract

The invention discloses a two-degree-of-freedom two-rotation parallel mechanism, which consists of a dynamic platform, a static platform and three branched chains linking the dynamic platform and the static platform. The first branched chain is simply a ball pair and the two ends of the first branched chain are linked with the dynamic platform and the static platform respectively; the second branched chain consists of a ball pair, a rotation pair and a moving pair, wherein the ball pair is linked with the dynamic platform and the rotation pair or the moving pair is linked with the static platform; and the third branched chain consists of two ball pairs and a moving pair, wherein one ball pair is linked with the dynamic platform and the other ball pair or the moving pair is linked with the static platform. When the two moving pairs are controlled to move, the dynamic platform acquires two independent rotation outputs. The mechanism is simple in structure, capable of controlling decoupling, easy to manufacture and process, and applicable to devices or industrial machines which require two-dimension independent rotation or three-dimension motion.

Description

technical field [0001] The invention relates to a two-degree-of-freedom and two-rotation parallel mechanism, specifically, it is a kind of industrial machinery that requires two-dimensional independent rotation or three-dimensional movement in space, such as vibrating screens, mixing machines, tracking receiving devices, sports and entertainment equipment, etc. A new two-degree-of-freedom two-rotation parallel mechanism. Background technique [0002] At present, the traditional vibrating screens are mainly circular vibrating screens and linear vibrating screens. Vibration is generated by inertial vibrators. The structure is complex. If it is sufficient, the sieve holes are easily blocked by "sieve grains", resulting in low screening efficiency. Patent documents [invention application numbers 2006100881264, 200710022283X] respectively introduce a two-degree-of-freedom and three-degree-of-freedom parallel mechanism, which can generate three-dimensional space motion for vibrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/08B25J19/00
Inventor 沈惠平丁磊陈建彬李菊朱伟杨廷力
Owner JIANGSU POLYTECHNIC UNIVERSITY
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