Independently powered trolleys
AssigneeMi-Jack Products, Inc.
InventorsMyron Glickman, Matthew M. Moran, Daniel Brian Zakula, Sr.
Life of this patent
Estimating the term…
Abstract
A trolley control system for a gantry crane having a multiple trolley arrangement such as a first and second trolley. The control system including a trolley beam connected to the gantry crane with a first and second drive device connected to the trolley beam. The first drive device is powered by a first drive system while the second drive device can be powered by either the first drive system or the second drive system. A first trolley is connected to the first drive device while a second trolley is connected to the second drive device.
Claims21
A trolley control system for a gantry crane having a multiple trolley arrangement, the control system comprised of:
- a trolley beam mounted to the gantry crane;
- a first drive chain connected to the trolley beam, the first drive chain powered by a first drive system;
- a second drive chain connected to the trolley beam, the second drive chain powered by the first drive system and a second drive system;
- a first trolley connected to the first drive chain;
- and
- a second trolley connected to the second drive chain.
A control system for a gantry crane having a multiple trolley arrangement, the control system comprised of:
- a trolley beam mounted to the gantry crane;
- a first drive belt connected to the trolley beam, the first drive belt powered by a first drive system, the first drive system comprised of:
- a first motor attached to a first drive train;
- a first brake connected to the first drive train;
- and
- a first clutch connected to the first drive train, said first clutch positioned between the first drive belt and a second drive belt;
- the second drive belt connected to the trolley beam, the second drive belt powered by the first drive system and a second drive system, the second drive system comprised of:
- a second motor attached to a second drive train;
- a second brake connected to the second drive train;
- and
- a second clutch connected to the second drive train;
- a first trolley connected to the first drive belt;
- and
- a second trolley connected to the second drive belt.
A control system for a gantry crane having a multiple trolley arrangement, the control system comprised of:
- a trolley beam mounted to the gantry crane;
- a first drive chain connected to the trolley beam, the first drive chain powered by a first drive system, the first drive system comprised of:
- a first motor attached to a first drive train;
- a first brake connected to the first drive train;
- and
- a first encoder connected to the first motor;
- the second drive chain connected to the trolley beam, the second drive chain powered by the first drive system and a second drive system, the second drive system comprised of:
- a second motor attached to a second drive train;
- a second brake connected to the second drive train;
- and
- a second encoder connected to the second motor;
- a first trolley connected to the first drive chain;
- a second trolley connected to the second drive chain;
- and
- a processor connected to the first and second motors and to the first and second encoders.
A trolley control system for a gantry crane having a multiple trolley arrangement, the control system comprised of:
- a trolley beam mounted to the gantry crane;
- a first drive chain connected to the trolley beam, the first drive chain powered by a first drive system;
- a second drive chain connected to the trolley beam, the second drive chain selectively powered by the first drive system and a second drive system;
- a first trolley connected to the first drive chain;
- and
- a second trolley connected to the second drive chain.
Dependencies are inferred from the claim text.