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Brake shoe for harbor crane |
  | Click to enlarge |
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Structure of mechanism |
| Function |
This mechanism is a brake system for port crane which has the property to be housed in a rack secured to the ground, and therefore replaces the traditional friction brake. It consists of a deformable parallelogram controlled by an actuator for the translation of the hoof’s frame, a hoof that is vertically controlled and will operate the brake, and a lockable reaction actuator related to the crane. This brake is passive for security reasons.
The functioning is such as in case of release or power failure, the hoof actuator is released and the hoof is taken by gravity on the rack, the actuator of the parallelogram will therefore move along the hoof in order to reach a hollow housing. The descent of the hoof stops the actuator of the parallelogram which is free and creates the blocking of reaction actuator, which will transmit the braking force of the hoof against the rack in the body of the crane. |
| Comment |
Author : Raphaël DAL BORGO
Modified by : Khaled-Assad ARROUK
IFMA (French Institute for Advanced Mechanics) - http://www.ifma.fr
Clermont-Ferrand, France
The model and all attached items were made within this context. |
| Dimension of mechanism |
planar |
| Number of links |
8 |
| Drive movement |
Rectilinear translation |
| Degree of freedom |
2 |
| Fundamental mechanism |
 Link containing mechanism |
| Number of inputs |
3 |
| Number of followers |
5 |
| Revolution ability |
no |
| Revolution ability of input link |
no |
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Application |
| Application area |
Transport/Traffic |
| Examples of application |
Port crane structure braking. |
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| Collections |
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| Permanent links |
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| Data provider |
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| Administration |
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| Location |
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IFMA (French Institute for Advanced Mechanics) |
| Producer |
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Raphaël Dal Borgo |
| Persons |
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editor: Cousturier, Richard (Ed.) |
| Date of production |
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September 2010 - January 2011 |
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| Further media formats |
 Animations |
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 CAX files |
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 Videos |
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 Images |
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IFMA
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