what are design standards and codes for segmental assembly launching gantry?
To design a segmental assembly launching gantry, we must take national design standards and codes into consideration to confirm that we make a qualified and good launching gantry.
HZP1600 segmental assembly launching gantry
What is brief introduction on Taohuayu Yellow River Bridge in China?
HZP140
TaohuayuYellow RiverBridgeis an important channel across the Yellow River inHenan,CHINA. According to the actual condition, ZZHZ gives a proposal on segmental assembly launching gantry to install the bridge girders.
What are necessary preparation parts before bridge girder installation?
Launching gantry in the worksite
There are two necessary preparation parts for bridge girder installation according to ZZHZ, please take the following before using a launching gantry to install girders as a reference:
What are test content of launching gantry after being installed?
The launching gantry needs to be installed after finishing fabrication. To make sure the
quality and customer’ satisfaction, we need to inspect and test the launching gantry.ZZHZ is a professional
factory with launching gantry design , manufacture and installation, and our technicians have very rich experience, below test content for launching gantry is for your reference:
1. the connection of hydraulic tube
2. the connection of electric circuit
3. the paving of rails
4. high strength connection bolt reach the fixed torque
5. starting the traveling trolley and watching its running and winch’s lifting.
6. turn on power and watch the light of instrument panel .
7. opening the hydraulic system and hydraulic pressure gauge.
What is launching gantry?
Launching gantry is a special bridge construction equipment to put precast girders on prefabricated piers.
common railway launching gantry
How to maintain the steel structure of launching gantry?
Launching gantry is mainly made up of steels, so maintenance of steel structures plays a crucial part. Below tips from ZZHZ teach you how to maintain steel structure of launching gantry:
launching gantry
How to avoid rust of metal structure of launching gantry?
Paint coating on the surface of launching gantry is necessary before delivering the machine, but
the painting will fall off after encountering colliding or a long time use. If we do not maintain
steel structure of launching gantry immediately, it will rust, which pose a great danger on
safety of launching gantry. Below tips are anti-rust measures for launching gantry:
launching gantry main girder
What is honeycomb type main girder of ZZHZ launching gantry?
ZZHZ Launching gantry uses new and unique honeycomb type main girder which features high stiffness and low deflection and will bring large benefit to our customers. Please take below introductions as a reference:
ZZHZ launching gantry
What are price factors for launching gantry?
The launching gantry is the equipment which installs the pre-cast concrete girder on the prefabricated piers. This invention has made a great contribution to the Chinese bridge construction field.
launching gantry
Brief introduction on rear leg of HZQ900 launching gantry
HZQ900 type launching gantry is mainly made up of main girder and front, rear cross girder; front lifting trolley, rear lifting trolley, rear part winch system; front leg; rear leg and rear leg bogie; auxiliary leg and bogie; guide beam; cantilever beam and auxiliary trolley; control cabin and electrical control system; hydraulic system and power system, safety protection device and other parts. Below is brief introduction on rear leg：
HZQ900 launching gantry
Rear leg is o-type closed structure, upper part (the third section) and main girder is connected with M30 high tension bolt. Max section (the first section) bottom part is connected with moving bogie, one pair of moving driving wheel is set up respectively at the right and left, middle hinge seat cushion block at the bottom part of the gearbox provides support; set up hydraulic oil cylinder, realize change between load-carrying device (hinge seat cushion block support) and moving wheel.
Left and right moving gearbox moves on the special rail, rail distance 5900mm, rail type Q120
One hydraulic pump station is installed at the bottom part of the support leg, pump station 7.5kw.
