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The end carriage plays an important role in the EOT crane , which is the key component of the load shifting and transportation. End carriage is composed of wheel and frame, end carriage part is mainly composed of the cover,web and bottom cover plate; end carriage is formed by two segments through a connecting plate and angle steel with high strength bolt connection. A reinforcing rib is arranged in the inner of the end carriage to ensure the stability when load. Main dimensions of the end carriage is determined according to the span of the main girder, the track of the cart and trolley; the operation of the cart is driven by the separately driven scheme.When assembling the crane, firstly connect one section to one of the main carriages, and then connect the two section of the end carriage together.

Overhead crane double girder is the main stress components in EOT crane by about two webs, upper and lower cover plates and a number of large and small plates and stiffened plates. Main technical requirements Arch degree of the main overhead crane double girder: When the load is carried, the deflection can be offset by the deformation under the condition of the main girder, so as to avoid the carrying trolley climbing. Main girder side change: In the manufacture of bridge. After the side welding with drawing residual stress, when the transport and use the release of residual stress, resulting in two main girders of the inward side bend; and the main overhead crane double girder under the horizontal inertial load, according to the stiffness conditions allow have certain lateral bending, both stack and caused by bending deformation. Usually by stiffness and strength condition, and the cross-sectional area is smallest, which can satisfy the construction requirements (such as th...

For the double girder eot crane of high lifting weight, high work level and high operation speed, generally use of cab control mode, to ensure the safety. The cab is usually fixed on one side of the bridge. If the span of double girder overhead cranes is large, and in complex lifting situations, can select the mode of the cab moving with lifting trolley. Sometimes can also choose the mode of that the driver room can move along the main beam, the operation can be more convenient. In the situation of double girder overhead cranes running slow, short stroke, work is not busy, and asked the driver directly linking or picking the hook; in the situation of which plant is low or ground equipment is high or can not be installed the cab; in the situation of harmful gases in the upper part of the plant, that can not operate on the EOT crane , can use ground control. The operating speed of the ground handling crane is generally not more than 45 m/min. According to the need to use several ways s...

With the continuous improvement of the level of production automation, Single girder eot crane can make full use of space, has been used as a carrying robot, and become one of the key equipment of material handling automation. The update and development of single girder overhead cranes , depends on the improvement of automatic control and electric drive. Experts estimate that 20% ~ 30% of the bridge crane need to install automation system in the future. For the single girder overhead cranes with automatic grab goods function, in order to accurately handling the goods, improve production efficiency and prevent spreader motion can not effectively positioning, should generally be selected anti shake function of the spreader. Sling anti swing with mechanical type, hydraulic type, electronic type and rigid guide rod type and other types, somecountries have developed a kind of fuzzy logic control technology to achieve the best anti swing control. In some special occasions, such as the l...