Suspended walking combined gantry crane

Abstract

The invention discloses a suspended walking combined gantry crane applicable to hoisting or placing or horizontally moving a heavy object in an industrial factory or a test room. The combined gantry crane comprises a combined type steel portal with a hoisting device, and an air cushion suspension device mounted at the bottom of the combined type steel portal. According to the suspended walking combined gantry crane, a conventional gantry crane and a novel air cushion technology are combined, and a walking system of the conventional gantry crane is replaced with the air cushion suspension device, so that the suspended walking combined gantry crane has a function of vertically catching a workpiece and a suspended walking function and can easily move horizontally. The suspended walking combined gantry crane is not provided with a complicated trolley walking system and a special track, so that the structure of the crane is simplified, the weight of the crane is reduced, the occupied space is decreased, and the requirement on ground bearing capacity is lowered; the suspended walking combined gantry crane is easy to assemble and transport, and the cost is saved. The combined steel portal adopted by the suspended walking combined gantry crane can be used with various methods, so that the application range and the use flexibility of the crane are greatly improved.

Description

technical field [0001] The invention is suitable for hoisting or placing and horizontally moving heavy objects in industrial workshops or laboratories, and in particular relates to a combined gantry crane for suspended walking. Background technique [0002] Ordinary gantry crane is a very old and has been used lifting technology, not only in the factory building, but also in open-air construction sites and water conservancy dams are common gantry cranes, its advantages: heavy lifting, high vertical stroke The disadvantage is: there must be a special track, which takes up a lot of space, and the gantry crane is very heavy due to the complicated traveling system of the cart and trolley. Therefore, try to avoid using gantry cranes indoors (especially in large industrial plants), and use truss cranes (cranes that support the crane beams on the columns of the plant) instead, which greatly increases the cost of plant construction. [0003] Air cushion lifting transportation techn...

AI Technical Summary

Problems solved by technology

[0002] Ordinary gantry crane is a very old and has been used lifting technology, not only in the factory building, but also in open-air construction sites and water conservancy dams are common gantry cranes, its advantages: heavy lifting, high vertical stroke The disadvantage is: there must be a special track, which takes up a lot of space, and at the same time, the gantry crane is very heavy due to the complicated traveling system of the cart and trolley

[0005] It can be seen that when the air cushion is used for lifting and transportation, the air cushion module cannot directly pick up the heavy object from the ground, but can only be lifted from the bottom of the heavy object (or workpiece) bracket, and the vertical travel of the heavy object is also very limited. Only a few centimeters, or even less than 1 centimeter

In this way, if the workpiece is to be hoisted into the car or from the car into the factory building, the existing air cushion transportation method cannot be completed.

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