Non-multiplying-power straight pull type hoist

Abstract

The invention discloses a non-multiplying-power straight pull type hoist which comprises a winch-type hoist body arranged on an engine base, the winch-type hoist body comprises a winding drum driven by a motor through a speed reducer, steering pulley devices are symmetrically arranged at the left side and the right side of the engine base, each steering pulley device comprises a fixed pulley and a pulley holder, the pulley holder is movably connected with a civil engineering foundation, two ends of the winding drum are respectively and fixedly connected with a steel wire rope, the two steel wire ropes are wound on the winding drum towards opposite directions, one steel wire rope is wound out while the other steel wire rope is wound in, the steel wire rope which is wound in is occupied in a rope slot reserved when the other steel wire rope is wound out; and the other ends of the two steel wire ropes are respectively wound through the corresponding fixed pulleys and connected with a rotating gate. The non-multiplying-power straight pull type hoist disclosed by the invention has the advantages of compact structure, small occupied space, and simple and clear control method of the rotating gate.

Description

technical field [0001] The invention relates to a winch hoist, in particular to a non-magnification straight-pull hoist. Background technique [0002] With the development of the times, the urban ecological water system requires that the overall architectural layout should be organically integrated with the upstream and downstream ecological wetlands and landscape scenic spots, so as to achieve a new urban scenic spot integrating flood control, tourism, leisure and sightseeing. Therefore, the opening and closing system of the river gate is required to be installed in the operating room below the river bank ground. This requires that the gate opening and closing system must have the characteristics of small size under the premise of ensuring the output power, especially for the cylinder-type water conservancy turnstile with a large river span. The existing hydraulic hoist is not applicable due to the limitation of the stroke of the oil cylinder; the combination of hydraulic ...

AI Technical Summary

Problems solved by technology

The existing hydraulic hoist is not applicable due to the limitation of the stroke of the oil cylinder; the combination of hydraulic motor and pinion is used for the gate opening and closing system required by the above requirements, but the gear transmission is not only required for its strength, but also for the meshing. Precision, tooth surface contact length, installation accuracy, etc. are very demanding, which increases manufacturing costs, and components such as hydraulic motors and gears are not suitable for operation in wet environments

Images