02
March
1. After the installation of main girder of gantry crane is finished, the rails of trolley are welded in order to make sure the height difference of joints ≤1mm, and the lateral dislocation ≤1mm, the deviation of track center line and the girder web center line ≤4mm, lateral straightness ≤1mm/2m, and the length of rails≤10mm. ...
02
March
1.measure insulation resistance of overhead crane power line and control circuit to the ground
and phases shall not be < 0.5 MΩ, the value can decrease 50% in the humid area, after it connects with all electrical equipment lines.
...
01
March
The bridge girder launcher need to be installed after its manufacturing is finished, ...
01
March
Overhead crane is consist of the lifting trolley, bridge frame traveling mechanism and bridge frame structure . Lifting trolley is made up of lifting mechanism, ...
28
February
Because of the structure and special requirements of road when walking, the bridge girder launcher for tunnel must be installed strictly. ...
27
February
Because of the structure and special requirements of road when walking, the bridge girder launcher for tunnel must be separated when carried. ...
27
February
Electric hoist of overhead crane is usually used in bridge construction, power, ship, building and tunnel etc. Therefore, the electric hoist of launching gantry plays an important role in maintenance. ...
10
January
ZZHZ should send technicians to train buyers’ workers after installing the moment limiter; on one hand the production for users won’t be affected for common failures of instrument, on the other hand the manufacturer can reduce cost. Users should master the follows as receiving training: ...
09
January
(4) Hoist the connecting frame with one truck crane and bolt them.
(5) Hoist the trolley of gantry crane on its track mounted on the upper surface of the girder with one truck crane. Adjust it to make the wheel tread on the track.
...
08
January
Electric hoist of overhead crane is usually used in bridge construction, power, ship, building and tunnel etc. Therefore, th e electric hoist plays an important role in maintenance.
1, the new electric hoist must test run without load ,Don’t get power before installing.
2, check the limit switch strictly during the commissioning and maintenance. ...
05
January
(1) With the truck crane, assemble and check the main girder beam, supporting legs and gearboxes by tag on the ground. Put them proper places waiting to lift. ...
04
January
3. pin connection
Advantages: reliable transmission force, good tenacity and plasticity, easy checked quality, anti dynamic load, and fixed firmly.
Disadvantages: high requirements of manufacture.
...
03
January
There are riveting, welding, pin connection, bolt connection and high-strengthen bolt connection of gantry crane, their advantages and disadvantages are following: ...
29
December
a. Operator of crane should put on rubber insulating shoes, should no put on hard-ground shoes or plastic shoes. Working uniform with the right size should be put on, trouser legs and sleeve-cuff should be bound tightly while works. Hard hat should be put on to prevent the head being broken by falling tool when maintenances; ...
28
December
1. Take part in the meeting of telling technique and safety duty of hoisting job, and carefully carry out the stipulations on safe and technique of hoisting job. ...
27
December
1. Gantry crane test run record lists should be kept for installation company and end user, at list 1 piece for each, if the crane has defection, write it into record list as original basis, no matter whether the defection problem is solved. ...
26
December
In order to finish the erection smoothly, so when the gantry crane lifts the large scale parts, the steps are following: ...
25
December
9、No matter the crane or trolley which must go to the ends slowly. The retaining frame are prohibited strictly ...
24
December
a. know the power supply
b. Lubricating the points regularly.
...
20
December
Lifting 1.1 times rated load as load to test run, when test run , the auxiliary hoist can’t start at the same time), ...
Products Categories
- Gantry Crane
- Bridge Girder Launcher
- Movable Support System
- Overhead Crane
- Shotcreting Machine
- Cinder Scraper
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