Steel wire ropes are versatile mechanical components whose types, structures, materials, and manufacturing processes depend on their intended application. Tipies, steel wire ropes are made using round-section carbon steel wires with diameters ranging from 0.1 mm to 6.0 mm. For sealed and semi-sealed wire ropes, Z-shaped and other specially shaped wires are used to enhance […]
18
Jan
Jan
For newly installed electric hoists or those reinstalled after disassembly and inspection, several no-load trial runs should be carried out first. Egter, it is strictly forbidden to power on for a trial run before the installation is completed. During the installation process, a series of preparatory work needs to be done meticulously. The installation site […]
18
Jan
Jan
1. Low Voltage Check the starter potential when the motor is under load. The allowable voltage fluctuation range is ±10%. Low voltage can severely impede the normal operation of the lifting platform. The electrical components, especially the motor, rely on a certain voltage level to generate sufficient torque. If the voltage drops below the acceptable […]
18
Jan
Jan
The proper selection of steel wire ropes is crucial as it directly impacts the rope’s service life, prevents structural deformation, breakage, and unexpected failures. To ensure safe and efficient operation, the following principles are recommended: 1. When to Use Non-Rotating Steel Wire Ropes Non-rotating steel wire ropes are ideal for the following scenarios: Single Lifting […]
17
Jan
Jan
The proper functioning of steel wire ropes plays a crucial role in ensuring the normal and safe operation of port cranes. Before starting the machinery, the inspection of the wire ropes must not be taken lightly. It must be carried out in strict accordance with national regulations, starting from the outside and moving inwards. External […]
17
Jan
Jan
To adjust the rotational speed of an asynchronous motor, we can start with changing the following three parameters: the number of pole pairs of the stator winding, the slip ratio of the motor, and the frequency of the power supply. Changing the first parameter affects the synchronous speed. Changing the second parameter only enables speed […]
17
Jan
Jan
Introduction to Tower Crane Reducer Housings The reducer housing of a tower crane serves as a critical structural component, ondersteuning en beskerming aan die ratte en meganiese onderdele binne. Vervaardig hoofsaaklik uit gietyster, Tipies van graad HT150, Hierdie huise is ontwerp om beduidende meganiese spanning tydens werking te weerstaan. Egter, As gevolg van langdurige gebruik, […]
16
Jan
Jan
ek. Purchase (Rental) of Tower Cranes 1. Purchase of Tower Cranes When purchasing a tower crane, it must be bought from a professional manufacturer with a valid production license. The manufacturer should provide technical documents such as the whole-machine certificate, quality guarantee for high-strength connecting bolts, quality guarantee for hoisting wire ropes, quality guarantees for […]
16
Jan
Jan
When lifting heavy objects, the hook wire rope should remain vertical. It is not allowed to drag the lifted object diagonally. When lifting heavy objects, the center of gravity should be accurately located and the object should be firmly bound. If there are sharp corners, they should be padded with wooden blocks. Before the heavy […]
15
Jan
Jan
(1) The deviation of the position of the girder center line from the designed positioning axis shall not be greater than 5 mm. The alignment of the girder’s center line is crucial as it serves as the central axis for the entire crane structure. Even a minor deviation exceeding 5 mm can cause misalignment of […]