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UNIFORM FOOTPRINT MULTI-WHEEL END TRUCK FOR A CRANE
UNIFORM FOOTPRINT MULTI-WHEEL END TRUCK FOR A CRANE
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机译:起重机的统一脚踏多轮端卡车
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摘要
According to one aspect, a supporting truck for a crane comprises a load bearing member and a frame rigidly coupled to the load bearing member. A plurality of substantially equally spaced and substantially equally sized wheels is rigidly journaled in the frame at substantially equal heights such that the wheels have a single degree of freedom comprising rotational movement with respect to the frame and the load bearing member. The load bearing member and the frame have a moment of inertia of at least a particular value to cause the wheels to experience substantially equal loading by forces applied to the load bearing member.
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