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Three-rotational-freedom parallel mechanism driven by rope

A rope-driven, three-rotation technology, applied to manipulators, program-controlled manipulators, manufacturing tools, etc., can solve problems such as unbearable pressure, and achieve the effects of low manufacturing cost, easy installation, and large working space

Active Publication Date: 2010-10-20
SHANTOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses an Active Branch Chain (AB) with big workspace that makes it easier to install on different platforms like vehicles or buildings. It also allows for more flexibility when used at various angles due to its longer length compared to traditional branches.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance or efficiency of robotic mechanisms such as those described above due to their use in lift machines (lifters) and other applications where they require high precision movements.

Method used

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  • Three-rotational-freedom parallel mechanism driven by rope
  • Three-rotational-freedom parallel mechanism driven by rope

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Embodiment Construction

[0019] As shown in Figure 1, the present invention is a three-rotation-degree-of-freedom parallel mechanism driven by a rope, which is mainly composed of a static platform 1, a dynamic platform 10, three active branch chains and a fixed-length branch chain, and each branch chain is connected Between the moving platform 10 and the static platform 1. Among them, the structure of the three active branch chains is the same, and they are all composed of the lower rotating pair 2, the lower Hooke hinge 3, the motor 4, the runner 5, the rope 6, the pulley 7, the tether hook 14, the upper Hooke hinge 8 and the upper rotating joint. The lower Hooke hinge 3 is connected with the static platform 1 through the lower rotating pair 2, the tether hook 14 and the motor 4 are fixed on the upper end surface of the lower Hooke hinge 3, and the runner 5 is connected to the rotating shaft of the motor 4. The Hooke hinge 8 is connected with the moving platform 10 through the upper rotating pair 9, ...

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PUM

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Abstract

The invention relates to a three-rotational-freedom parallel mechanism driven by a rope, which comprises a static platform, a dynamic platform, three driving branch chains and a fixed-length branch chain. Each driving branch chain consists of a lower revolute pair, a lower hooke joint, a rope hook, a motor, a rotating wheel, the rope, a pulley, an upper hooke joint and an upper revolute pair. The fixed-length branch chain consists of a hooke joint, a revolute pair and a supporting rod. The hooke joint is connected with the dynamic platform. The revolute pair is connected with the hooke joint. A rotating shaft of the revolute pair is connected with one end of the supporting rod. The other end of the supporting rod is fixedly combined with the static platform. The three-rotational-freedom parallel mechanism has the characteristics of large working space, simple structure, low manufacturing cost and easy installation. The fixed-length branch chain fixedly combined with the static platform plays a supporting role so as to provide enough rigidity for the mechanism. The three-rotational-freedom parallel mechanism can be applied to a large-scale attitude regulating and tracking device.

Description

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Claims

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Application Information

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Owner SHANTOU UNIV
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