A special base spreader

Abstract

The invention discloses a special base lifting appliance, and belongs to the field of lifting equipment. The special base lifting appliance comprises a lifting seat, wherein at least one shackle through hole is formed in the upper end of the lifting seat, a bolt of a shackle is axially inserted into the corresponding shackle through hole, a lifting belt is connected to the shackle, a lower supportcross beam is arranged on the back end of the lower side of the lifting seat, lower support surfaces are respectively arranged on the left and right ends of the upper side of the lower support crossbeam, an upper support seat is arranged on the front end of the lower side of the lifting seat, an upper support surface is arranged on the upper support seat, and a side support surface is arranged on the front side, which corresponds to the upper support surface, of the lifting seat. When a workpiece is lifted by the lifting seat, both the upper support seat and the lower support cross beam extend into a lifting hole of the workpiece in an inclined mode, the lifting hole is inclined, the upper hole wall of the lifting hole is supported on the side support surface, the upper support surface is abutted with the inner wall, which is close to the upper edge of the lifting hole, of the workpiece, and the side support surface is abutted with the inner wall, which is close to the correspondingside edge of the lifting hole, of the workpiece. The special base lifting appliance can be used for lifting a base, the condition that the base is horizontal is guaranteed, and the adaptability to thechange of the center of gravity of the base is strong.

Description

technical field [0001] The invention belongs to the field of hoisting equipment, in particular to a special base hoisting tool. Background technique [0002] In the prior art, a spreader refers to a device for hoisting heavy objects in a hoisting machine. The most commonly used lifting tools for lifting items are hooks and slings, and others include rings, lifting suction cups, clamps and forks. It is widely used in the lifting industry. [0003] In industrial production, it is often necessary to lift some special workpieces (such as the base). The shape of the base workpiece is relatively special and the mass is relatively large. The base workpiece needs to be hoisted off the ground, and the base workpiece is suspended. , the ordinary spreader cannot guarantee the stability of the workpiece during the lifting process, which is often accompanied by certain dangers. At the same time, collisions will cause damage to the structure of the workpiece, which brings great inconven...

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Problems solved by technology

[0003] In industrial production, it is often necessary to lift some special workpieces (such as the base). The shape of the base workpiece is relatively special and the mass is relatively large. The base workpiece needs to be hoisted off the ground, and the base workpiece is suspended. , the ordinary spreader cannot guarantee the stability of the workpiece during the lifting process, which is often accompanied by certain dangers. At the same time, collisions will cause damage to the structure of the workpiece, which brings great inconvenience to the staff; and the base is in the process of assembling parts. , it is necessary to ensure that the assembly surface of the base workpiece is in a horizontal state, otherwise it cannot be positioned and the assembly accuracy cannot be guaranteed; after the base is assembled with parts, the center of gravity of the base as a whole will change, and the existing spreader cannot make adjustments according to the change of the center of gravity of the base. Adjust accordingly, cannot ensure the base is always level

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