Fundamentals procedures of a single-girder overhead crane installation

Crane rail installation

Clean up the site first, then accept the cement beam foundation under the rail of a single girder  overhead crane.

Leveling up and laying out.

Check for positive reinforcement and measurement inspection, leveling, and straightening of single girder  overhead crane rail, rail top, and rail joint connection.

Installation of a single girder  overhead crane stopper

The crane rail installation standards must meet TJ231-78 "mechanical equipment installation engineering construction acceptance specifications" rules, and the entire single girder overhead crane traveling must not exceed 10 mm. On the face, the difference between the highest and lowest joint of the left, right, offset is less than 1 mm. Joint clearance shall not exceed 2 mm, span deviation should not exceed 5 mm, and the relative height difference between cross two parallel tracks in the post should not exceed 10 mm, and in other places should not exceed 15 mm.

Installation of busbar

Sliding wire contact surfaces should be smooth and straight, with no rust, conductive good and appropriate installation, and a compensating mechanism should be established across the structure of the expansion joints. Power supply cable with red paint on conductive contact surface, device safety notice in proper place, or electric lamp Installing a suitable slip line, for example, should be straight, conductive, and have a soft cable to meet the requirements of line number, traction wire rope.

Bridge installation of single girder overhead crane

Single girder overhead crane assembly, want to put the bridge in the working position in the pad on the shelf, fix firmly, put end beam, measuring diagonal is poor, should not be greater than 5 mm, span should not be greater than 3 mm, completely comply with the rules, then assembling electric hoist, trolley running clearance should not be greater than 5 mm, final assembly control room

Electrical installation

4.Before installing a single girder overhead crane, be familiar with the electrical schematic diagram, detailed wiring diagram, electrical assembly drawing, and relevant technical data, as well as the working principles and functions of the various components. Installation issues arose during the process in order to precisely and swiftly process the data. The geopolitical resistance of all electrical components and the motor must be less than 0.8 ohms.

In a moist environment, the resistance should not be less than 0.4 ohms. Before doing the current test, double-check that each line is proper and that there are no bers. Check whether the direction is consistent, the travel switch power is in compliance with the direction's requirements, and the up and down limit device is safe and dependable during the test run. Before lifting construction, a safe and dependable safety equipment must be qualified; throughout the hoisting process, rigorous adherence to safe operation standards must be followed; unlawful actions are prohibited.

Crane tests

No load test, static load test, and dynamic load test shall be performed once the overhead crane has been qualified. Qualified self-checking, filling in the report's completion, notifying party a, organizing relevant departments to check and accept, and qualified after the consignment has been utilized.