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Gravity powered balancing system

A technology for balancing and assisting systems, applied in counterweights, multi-purpose hand tools, portable lifting devices, etc., can solve problems such as increasing system inertia

Active Publication Date: 2013-05-08
GM GLOBAL TECH OPERATIONS LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If horizontal travel speed is important, the inertia added to the system can be a major drawback

Method used

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  • Gravity powered balancing system
  • Gravity powered balancing system
  • Gravity powered balancing system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Referring to the drawings, wherein like reference numerals indicate like parts, in figure 1 Center Balance Assist is shown at 10. The balance assist system 10 includes a stationary support structure 12 , a variable balance system 14 , an assist device 16 and a mass 18 . The variable balance system 14 is configured to move the mass 18 along the Z-axis 22 in a vertical direction 20 relative to the ground 24, as figure 1 shown. The mass 18 may include an end effector 26 , wherein the end effector 26 is supported by the auxiliary device 16 . End effector 26 may optionally support a payload 28 .

[0019] When a heavy load 28 is manually moved by an operator 30, it is desirable to compensate for the weight. This can be achieved by using a balance assist system 10 based on balance weights. If the mass is mounted on a rod 34 , which is rotatable about a fixed pivot point 36 , the global system is statically balanced when the center of mass of the moving mass coincides with...

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PUM

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Abstract

A balance assist system includes a support structure, an assist device, a variable balancing system, and a balancing cable. The variable balancing system is configured for moving a mass in a vertical direction along a Z axis. The variable balancing system includes a balance platform, a lever, and a mobile counterweight. The lever is pivotally attached to the balance platform at a fixed pivot point such that the lever is pivotable at the fixed pivot point about a balance axis. The mobile counterweight is movably disposed on the lever relative to the fixed balance axis and movable between a minimum position and a maximum position. The minimum position corresponds to the mass having a minimum weight such that the mass is statically balanced along the Z axis. Likewise, the maximum position corresponds to the mass having a maximum weight such that the mass is statically balanced along the Z axis.

Description

technical field [0001] The invention relates to a balance assist system configured for moving a load in a vertical direction. Background technique [0002] Viaduct cranes are widely used for lifting and repositioning large loads. Typically, displacement in a pick-and-place operation involves three translational degrees of freedom and a rotational degree of freedom along a vertical axis. This motion setup is known as Selectively Compliant Assembling Robotic Arm ("SCARA") motion or action, which is widely used in industry. Overhead cranes allow movement along two horizontal axes. With appropriate joints, a vertical axis of translation and a vertical axis of rotation can be added. The first movement along the horizontal axis is obtained by moving the bridge on the fixed track, and the movement along the second horizontal axis is obtained by moving the trolley perpendicular to the direction of the fixed track and along the bridge. Translation along the vertical axis is obt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/00F16F15/28
CPCB25J19/002B66C13/00B66D3/18
Inventor T.拉里伯特C.戈塞林D.高R.J.梅纳萨
Owner GM GLOBAL TECH OPERATIONS LLC