How about trial operation of motor of launching girder?
Trial operation of motor of launching girder:
Launching girder
After finishing connecting wire of electrical system, firstly confirm whether motor turns correctly, remove linkage connection for multi-machine linkage drive system, then confirm the motor turning direction with inching. Rear leg driving, rear leg hydraulic system goes up to make the driving wheels suspend in the air. Lifting trolley driving and auxiliary support leg driving, firstly confirm the motor turning direction, then install drive chain After confirming turning direction of all motors, write down work current of each motor as trial operation of the machinery (current displayed on the frequency converter or clamp ammeter)
What are functions of bridge building crane electrical system?
The bridge building crane works in a poor working condition, once an accident occurs, it will takes a lot of money and time to maintain it and has an influence on bridge girder installation and construction progress. ZZHZ develops HZQ bridge building crane both for highway and railway. Functions of its electrical system meet the following demands:
What are attentions for girder installation?
As installing precast girder with bridge construction crane, below demands shall be met to ensure a safe and ordered girder installation work.
What shall be considered in no-load test for highway overhead launching gantry?
As conducting no-load test for highway overhead launching gantry, some technical parameters shall be fully taken into consideration for the sake of personnel and equipment safety.
overhead launching gantry
What are main features of high speed railway overhead launching gantry?
HZQ high speed railway overhead launching gantry is specially designed for girder installation in high speed railway project. It features:
HZQ900 overhead launching gantry
What is double girder overhead launching gantry?
Double girder overhead launching gantry just as the name suggests, is made up of two girders which are connected by connecting rod or transverse steel frame. Overhead crane is set on the main girder, mobile support legs at bottom part. The overhead launching gantry can be used to install highway concrete girders as well as railway concrete girders.
overhead launching gantry
How to tighten and adjust the formwork of precast girder?
A precast girder is lifted and installed to a proper position by a bridge girder launcher. Here we refer a post-tensioning method to produce concrete girders with good quality, which needs to tighten and adjust the formwork well.
What are assembly requirements on end formwork?
A bridge girder launcher is used to install precast girders in bridge construction, here we tell some parts on how to make a piece of girder with post-tensioning method.
end formwork
What are assembly requirements on internal formwork?
Here we refers post-tensioning method to produce a concrete girder, now we introduce some knowledge on formwork assembly, here means internal formwork.
internal formwork
What are assembly requirements on external formwork?
Below text tells assembly requirements on external formwork which will be used to produce concrete girder with post-tensioning method.
external formwork
