Driving mechanism of longitudinal lateral moving type movable bridge

Abstract

The invention discloses a driving mechanism for a longitudinal lateral moving type movable bridge. The driving mechanism comprises a driving rail, a chain driving device, a fixed bridge frame, a moving bridge frame and a driving sliding block frame; the driving rail is fixed to the fixed bridge frame; the chain driving device comprises a geared motor with an output shaft and a chain track, the output shaft of the geared motor is provided with a sprocket wheel, the sprocket wheel meshes with the chain track, the geared motor is fixed to the driving sliding block frame, and the chain track is fixed to the fixed bridge frame; the upper end of the driving sliding block frame is suspended on the driving track through a horizontal guiding mechanism and a vertical guiding direction, and the lowerend of the driving sliding block frame is connected with the moving bridge frame through a vertical large hinge pin; and the driving mechanism comprises a synchronous driving controller, the synchronous driving controller is electrically connected with the geared motor. The driving mechanism drives the driving sliding block frame and the moving bridge frame to perform longitudinal lateral movingalong the driving track through the meshing action of the sprocket wheel and the chain track, thereby realizing the telescopic opening of a lower layer deck; and the operation is stable and reliable,the adaptability to the bridge deformation is high, and the control precision is high.

Description

technical field [0001] The invention relates to a drive mechanism, in particular to a drive mechanism for providing power in a longitudinal translation type open bridge, and belongs to the technical field of open bridge drive mechanisms. Background technique [0002] The open bridge is also known as the movable bridge and the open and close bridge. The open bridge can improve the clearance height of the bridge and make it possible to build bridges on some rivers where bridges cannot be built. . The advantage is that the piers are relatively low, which can greatly reduce the conditions for connecting slopes on both banks, reduce the engineering volume of approach bridges and embankments on both banks, and make it possible for non-motorized vehicles to cross the river with limited longitudinal slopes. At present, the existing opening bridges at home and abroad mainly include three types: horizontal rotation type, vertical rotation type, and vertical lifting type. The span st...

AI Technical Summary

Problems solved by technology

However, due to the large span and complex structure of the longitudinal translation open bridge, in addition to the high requirements for the synchronization of the movement of each structure in the open state, the upper structure will produce downward deflection during the process of driving and the longitudinal movement of the lower mobile bridge, resulting in the movement of the bridge. There is a difference in deformation between the main structures, and from the perspective of safety, in the event of a power failure of the drive motor, the drive motor is required to have a self-locking function to prevent the mobile bridge from sliding down, and the traditional drive mechanism cannot meet the above floating deformation and safety requirements , it is urgent to develop a new driving mechanism

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