Electric hoist used for hot-dip galvanizing production line

Abstract

The invention provides an electric hoist used for a hot-dip galvanizing production line. The electric hoist comprises a bearing frame, a winding drum, a lifting hook device and a lifting rope and is characterized by further comprising a fixed frame with a fixed pulley built in, the winding drum is fixed below the bearing frame and on the side, in the width direction, of the bearing frame, the fixed frame is located at the downstream position of the winding drum, the lifting hook device is located at the downstream position of the fixed frame, the axial direction of the fixed pulley is perpendicular to the axial direction of the winding drum, and a movable pulley set is built in the lifting hook device and consistent with the fixed pulley in the axial direction; after the lifting rope strides the fixed pulley, the two ends of the lifting rope are wound downwards around the movable pulley set, then evenly wound upwards on the left side and the right side of the winding drum and finally fixed to the two outer ends of the winding drum. Due to the electric hoist, reset of air guide battens is more stable and reliable, the problem that the reset is not in place due to resilience force and abrasion of a mold are solved well, customer complaints are reduced, and the satisfaction degree of customers is improved.

Description

technical field [0001] The invention relates to the technical field of lifting tools, in particular to an electric hoist used in a hot-dip galvanizing production line. Background technique [0002] Electric hoists are widely used in industrial production. With their strong lifting capacity, electric hoists play an important role in hot-dip galvanizing production lines. However, due to hot-dip galvanizing production, a large amount of waste gas and smoke and corrosive Acid mist, if it is produced in an open manner, will inevitably lead to environmental pollution and does not meet environmental protection requirements. Therefore, hot-dip galvanizing production needs to be carried out in a relatively sealed space. For example, pickling before hot-dip galvanizing needs to establish a pickling cover When collecting acid mist and galvanizing, it is necessary to establish a zinc fume collection cover for zinc fume collection and treatment. Since the exhaust gas and corrosive acid m...

AI Technical Summary

Problems solved by technology

[0002] Electric hoists are widely used in industrial production. With their strong lifting capacity, electric hoists play an important role in hot-dip galvanizing production lines. However, due to hot-dip galvanizing production, a large amount of waste gas and smoke and corrosive Acid mist, if it is produced in an open manner, will inevitably lead to environmental pollution and does not meet environmental protection requirements. Therefore, hot-dip galvanizing production needs to be carried out in a relatively sealed space. For example, pickling before hot-dip galvanizing needs to establish a pickling cover When collecting acid mist and galvanizing, it is necessary to establish a zinc fume collection cover for zinc fume collection and treatment. Since the exhaust gas and corrosive acid mist are easy to corrode the lifting device, the electric hoist is installed outside and above the various collection covers. By opening a gap extending from the entrance to the exit on the top surface of each collection cover, the hanging rope of the electric hoist can pass through, and the axial direction of the reel of the traditional electric hoist is the same as the axial direction of the movable pulley in the hook device of the electric hoist. Parallel, after the sling hangs around the reel, the cross section between the slings is perpendicular to the plane formed by the movement of the electric hoist, so that the gaps opened on the top surfaces of various collection covers for the slings of the electric hoist to pass should be corresponding to the size of the slings. If the spacing is increased, this will inevitably affect the sealing of various collection covers, making the waste gas, waste smoke, and acid mist generated during the production process easy to volatilize into the atmosphere, seriously polluting the environment, and does not meet current environmental protection requirements.

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