System arrangement of a lifting device, in particular for a container crane for the lifting of loads and moving for the operation of the system arrangement
US7970520B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2005 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Oct 29, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D1/58
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The lifting gear comprises two motors (1, 1′) that are connected to a transmission (6) via respective drive shafts (2, 2′), couplings (3, 3′), with fitted brake disks (4, 4′) or brake drums, brakes (14, 14′) and transmission input shafts (5, 5′). The transmission (6) drives cable drums (9, 9′) via transmission output shafts (7, 7′) and couplings (8, 8′). The cable drums have a cable pull (12, 12′) and fitted brake disks (10, 10′) or brake drums and safety brakes (11, 11′). The inventive lifting gear is characterized by comprising, in the drive shafts (2, 2′), devices (13, 13′) that completely or partially disconnect the motors (1, 1′) from the transmission (6) when an excess load exceeds the predetermined load. They are monitored on both sides of the devices (13, 13′) and the brakes (14, 14′) and/or safety brakes (11, 11′) are activated in the event of disconnection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.