Double-girder bridge crane

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This post was last edited by ztj1118 on 2016-1-20 at 20:20. Double-girder bridge cranes Generally, double-girder cranes refer to double-girder bridge cranes, and such cranes are typically composed of three main parts: the mechanical system, the electrical system, and the metal structure. A bridge crane appears externally as a single-span flat bridge that moves back and forth by being supported at both ends on two parallel overhead tracks. Double-girder cranes are widely used in various industries and locations such as indoor and outdoor industrial enterprises, the steel and chemical sectors, railway transportation, ports and docks, as well as in logistics and distribution operations. LH-type electric hoist double-girder cranes, 5–10 ton double-girder grab gantry cranes, QD-type double-girder bridge cranes. Double-girder bridge cranes operate by moving longitudinally along the tracks in the factory building, moving laterally with the trolley, and lifting or lowering the hook. 　　This machine is suitable for lifting tasks in machining and assembly workshops, metal structure workshops, mechanical repair workshops, metallurgy and casting workshops, as well as various types of warehouses. The recommended operating environment for this crane is an ambient temperature of -20 to 40°C and a relative humidity of ≤85%. 　　The main technical parameters of this series of cranes are as follows: lifting capacity: 5t, 10t, 16/3.2t, 20/5t, 32/5t, 50/10t, 75/20, 125/20, 150/50, 160/50 – a total of ten different specifications ； 　　Span: eight options including 10.5m, 13.5m, 16.5m, 19.5m, 22.5m, 25.5m, 28.5m, and 31.5m. 　　Working level: A5 (for situations where work is not very frequent, such as in general machining and assembly workshops); A6 (for situations where work is more frequent, such as in metallurgy and casting workshops). The lifting capacity is expressed as a fraction, with the numerator representing the lifting capacity of the main hook and the denominator representing that of the auxiliary hook. 　　It generally consists of three main parts: machinery, electrical systems, and metal structures. A bridge crane appears externally as a single-span flat bridge that moves back and forth by being supported at both ends on two parallel overhead tracks. 　　Mechanical part: It is divided into three mechanisms, namely the lifting mechanism, the trolley running mechanism, and the main frame running mechanism. The lifting mechanism is used to raise and lower items vertically, while the trolley moving mechanism is used to move horizontally with the load ； The main vehicle moving mechanism is used to move the lifting trolley and the goods longitudinally, so as to enable handling and loading/unloading of goods in three-dimensional space. 　　Metal structure part: It consists of a bridge frame and a trolley frame. 　　Electrical part: It consists of electrical equipment and electrical circuits. 　　Double-girder bridge cranes are important tools and equipment in modern industrial production and lifting operations, enabling the mechanization and automation of production processes. Therefore, double-girder bridge cranes are widely used in various industries and locations such as indoor and outdoor industrial enterprises, the steel and chemical sectors, railway transportation, ports and docks, as well as in logistics and distribution areas.