Lug plate adjusting and fixing device for hinged support

Abstract

The invention relates to a lug plate adjusting and fixing device for a hinged support. The lug plate adjusting and fixing device comprises a middle drive part and two clamping devices, wherein the clamping devices are arranged at two axial ends of the middle drive part and used for clamping and fixing corresponding lug plates. One sides, close to the middle drive part, of the clamping devices are fixedly connected with screw drive parts, threads of the screw drive parts are opposite in rotation direction, the two axial ends of the middle drive part are provided with threaded holes and shelter structures respectively, the threaded holes are in threaded driving fit with the corresponding screw drive parts, and the shelter structures are communicated with the threaded holes for the screw drive parts to oppositely or reversely move. By rotating the middle drive part, the clamping devices and the lug plates can move oppositely or reversely at the same time by the aid of the threaded holes in two sides and the screw drive parts reverse in rotation directions, and the distance between the lug plates can be conveniently adjusted.

Description

technical field [0001] The invention relates to a device for adjusting and fixing an ear plate of a hinged seat. Background technique [0002] The hinge seat is a commonly used component, which includes a bottom plate and two ear plates welded on the bottom plate at intervals. The ear plates are provided with hinge holes or hinge shafts for the corresponding hinges to be hinged. For example, a hinge seat used in a crane, the bottom plate and lug plate of the hinge seat are both thick plates (for example, the thickness is more than 30mm), and the two lug plates are welded and fixed on the bottom plate during production. To ensure penetration, each The connection between the lower part of the lug plate and the bottom plate generally requires a double-sided V-shaped groove, which is prone to large welding deformation during welding. At present, in the production of the hinge seat, in order to ensure the distance between the two ear plates, it is necessary to cut the round stee...

AI Technical Summary

Problems solved by technology

However, with such an operation method, when the distance between the two lugs in each batch of hinge seats is different, it is necessary to cut round steel or angle steel of different lengths to support and fix the two lugs, which is inconvenient to operate, wastes materials and is low in work efficiency.

In addition, since the lug plate needs to be fixed by continuous round steel or angle steel welding, removing the welding point after the hinge seat welding is completed will cause damage to the surface of the lug plate, affecting the strength and appearance of the lug plate, and the fixing of the lug plate to the round steel and angle steel It is rigidly fixed, the shrinkage deformation and stress caused by the welding of the ear plate and the bottom plate cannot be released in time, and the hinge seat is prone to deformation after the round steel or angle steel is removed

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