How do we correctly choose the gantry crane trolley?

First, choose a unipolar safety wire

As a trolley wire manufacturer, it is recommended to select the unipolar safety trolley wire as the power supply line. The unipolar trolley wire conductor adopts the H-type design. The inner groove is deep, and the current collector does not easily fall off and cause power failure.

Second, select heavy trolley wire

Although the gantry crane power is relatively small, it is recommended to use a 630A or more trolley wire because the gantry crane moves violently and requires high mechanical strength of the slide wire, while the heavy-duty trolley wire conductor has a large cross-sectional area and uses a single-hole lifting pylon as Fixtures can meet their strength requirements.

Third, the installation method selection

The gantry crane is used outdoors and there are two installation methods. One is an overhead installation mode, and the other is a trench installation mode.

Installation Notes:

Important installation instructions:

1) Assembled suspension

Adjust the suspension bolts to ensure the straightness and horizontal parallelism error of each wire in the horizontal and vertical directions. Its value must not exceed 5mm.

2) Wire connection

The guide rail and the conductive plate are connected with an abrasive cloth to remove the chlorinated layer and wipe clean; a layer of conductive paste with a thickness of about 0.2 mm is applied to reduce the contact resistance.

3) Installation of power supply

In addition to the DHS-1600 and DHS-2000 markings, open the cable holes on both sides of the connection cover. The size of the opening is generally 2 mm smaller than the outer diameter of the cable.

DHS-1600 and DHS-2000 type slide wire, just according to the wiring diagram to determine the installation location to access.

4) Installation of the collector

The length of the tractor (general type) is determined according to the number of poles of the current collector and the installation space;

For JDT type collectors, please refer to the current collector section in this chapter. JDS type collectors are usually mounted to the collector crossbar to maintain horizontality.

After installation, loosen the limit nut and remove the limit plate so that the collector moves freely up and down.

5) Review

Check the parallelism of the sliding line and the lifting running rail, the requirement is less than 20mm, and tighten all the fasteners.

After 1 month of continuous use, tighten all fasteners once more.