The static load test shall be carried out according to the following procedures and requirements. Park the crane at the column. First, start the hoisting mechanism to conduct no-load lifting and lowering operations, and make the trolley run back and forth along the whole journey. This no-load trial operation shall be carried out no less […]

The winter maintenance of construction machinery is of great significance. Especially in the northern regions where winters are long and the temperature remains low for extended periods. When construction machinery is used in winter, the cold climate can easily lead to difficulties in starting internal combustion engines, freezing of cooling water and electrolyte, intensified wear […]

The reasons for the downward deflection of the main girder of overhead cranes are multifaceted and should be analyzed according to specific circumstances. Generally speaking, issues can arise from design, tlhahiso, sepalangoang, ho kenya, and use. (1) The Impact of Unreasonable DesignIn the past, China followed the Soviet standards. The static stiffness of the main girder […]

Ho sa tsotelehe mofuta oa mochini, Lioli tse fapaneng tsa ho tlotsa li thibetsoe ho tsoakoa ho sebelisoa, le ba fokotsang ho joalo. Bakeng sa ba fokotsang, maemo a polaka ea boemo ba oli, plug ea drain, 'me phefumoloho e khethoa ke libaka tsa bona tsa ho kenya. Ha ho tluoa tabeng ea tšebeliso, tlhahlobo, le tlhokomelo ea oli e tlotsang ka li- reducers, […]

(1) Litlhoko tsa Elastic Base Plates Lipoleiti tsa motheo tsa elastic li entsoe ka maqephe a rabara, 'me thepa ea bona e lokela ho finyella litlhoko tse latelang: a Shore hardness of 70 – 80 likhato, matla a tsitsinyehang a maholo hofeta 130 kg/cm², elongation nakong ea khefu e kholo hofeta 300%, le modulus rekere e hatellang ea 700 – 1200 kg/cm². […]

Ho kenngoa ha lipina tsa crane ke ts'ebetso ea bohlokoa e netefatsang tlhophiso e nepahetseng le ts'ebetso ea li-crane tse holimo.. Mehato e latelang e qaqileng e hlalosa mokhoa oa ho kenya: 1. Ho tšoaea mela Ho sebelisa axis ea boemo ba crane girder e le sesupo, sebelisa theodolite ho theha lintlha tsa motheo. Ka sebaka sa 60mm ho tloha pina e bohareng, […]

Selelekela Ho beha fatše ke karolo ea bohlokoa ea polokeho ea crane, ho netefatsa ts'ireletso ea basebetsi le lisebelisoa ho tsoa likotsing tsa motlakase. Ho beha fatše ho nepahetseng ho fokotsa likotsi tsa ho tsosoa ke motlakase, mollo, le tšenyo ea lisebelisoa ka ho fana ka tsela e tšepahalang ea hore maqhubu a motlakase a phalle ka mokhoa o sireletsehileng lefatšeng. Tataiso ena e fana ka kakaretso e akaretsang ea litlhoko tsa motheo […]

I. Unified Signals for Operators and Signal Personnel Gantry crane operators and signal personnel must use standardized and unified signals to ensure effective communication and coordination. Operators should ascend or descend the control cabin using designated ladders. Before engaging the power supply, the controller must be turned to the neutral position. The cabin floor should […]

Proper lubrication and maintenance of the crane’s walking mechanism are critical for ensuring the equipment’s longevity, reliability, and safe operation. This document provides comprehensive guidance on the lubrication and care of the crane’s walking components, including the reduction gears, wheel bearings, and open gear systems. Initial Setup and Reduction Gear Lubrication When the walking mechanism […]

I. Importance of Moment Limiters in Crane Safety Lifting equipment is a type of machinery with relatively high risks at construction sites. Once an accident occurs, it often leads to severe consequences with multiple casualties. Ka hona, the safety issues of lifting equipment have always been emphasized by relevant departments. The moment limiter is one of […]