The main technical parameters of the Overhead Crane

The main technical parameters of the Overhead Crane 

The span S is the horizontal distance between the center lines of the running track of The main technical parameters of the crane
the bridge type crane.The distance between the center line of the trolley running track of a bridge type crane and the distance between the center line of the running track of a jib crane running on the ground is called the gauge.
Bridge type The distance between the center line of the trolley running track of a crane,
The distance between the centerlines of the running rails of a rail-mounted overhead crane is called the gauge.
Maintain the crane truck running track of the span and trolley track parallel to the track, is the crane security check one of the contents.
Amplitude L The amplitude of the rotary jib crane,is the horizontal distance between the center line of rotation and the vertical line of the extraction device,the unit is meters.The non-rotating boom type crane range refers to the horizontal distance of the spreader centerline to the boom rear axle or other typical axis.
When the tilting angle of the boom is the smallest, or when the distance between the trolley position and the center of the crane is the largest, the amplitude is the maximum amplitude, otherwise the minimum amplitude. For jib type cranes, the safe lifting weights for different amplitudes are different.
Working speed V Crane working mechanism, the rated load under the speed of stable operation.Including the hoisting speed Vq, the traveling speed Vk of the cart, the traveling speed Vt of the trolley, the luffing speed Vl and the rotational speed ω.
The operating speed of the mobile crane in the road running state is described by the traveling speed Vo.When a crane working mechanism can be multi-gear operation, under normal circumstances, the greater the load, the lower the speed.For boom-type cranes, should control the rotation speed, to prevent the rotation speed is too large, the suspension load caused by centrifugal force lead to crane tipping.