Grab bucket ear plate deformation adjusting tool

Abstract

The invention discloses a grab bucket ear plate deformation adjusting tool and relates to the technical field of hoisting machinery maintenance. The tool comprises at least three screws arranged at intervals, wherein the same end of the screws is sleeved with two oppositely arranged press plates, nuts are arranged on the screws and located outside the oppositely arranged press plates, and a flange perpendicular to the screws is arranged in the middle of each press plate. Compared with the prior art, the grab bucket ear plate deformation adjusting tool has the advantages that two ear plates of a grab bucket are installed on the parts, between every two oppositely arranged press plates at the two ends, of a middle screw in a sleeved mode, the ear plates are pressed by the press plates by adjusting nuts of the middle screw to enable a set distance to be formed between the two ear plates, adjusting precision is high, and operation is safe; the two ear plates are fastened by every two oppositely arranged press plates located at the two ends of the screws by adjusting the nuts of the middle screw, the press plates are pushed to clamp the ear plates by adjusting nuts located on the screws on the two sides, and then the vertical planes of the ear plates are corrected to meet technical requirements.

Description

technical field [0001] The invention relates to the technical field of hoisting machinery maintenance, in particular to a grab ear plate deformation adjustment tool for a crane. Background technique [0002] The grab bucket is a bucket that can be opened and closed for grabbing sediment and various bulk goods. It is a spreader that mainly relies on the opening and closing of the left and right combined buckets to grab and discharge bulk materials. There is a grab consisting of a bucket body and two ear plates connecting the two sides of the bucket body. The ear plate is provided with a connecting hole inlaid with a bushing. The grab is installed on the lifting machine through the ear plate. Under the gravity of the material, the lugs of the grab bucket are prone to deformation, the distance between the two lugs becomes larger, and the vertical surface of the lugs is twisted. At present, chain hoists are usually used to hook the connecting holes of the ear plates to pull the...

AI Technical Summary

Problems solved by technology

There is a grab consisting of a bucket body and two ear plates connecting the two sides of the bucket body. The ear plate is provided with a connecting hole inlaid with a bushing. The grab is installed on the lifting machine through the ear plate. Under the gravity of the material, the lugs of the grab bucket are prone to deformation, the distance between the two lugs becomes larger, and the vertical surface of the lugs is twisted

At present, chain hoists are usually used to hook the connecting holes of the ear plates to pull the ear plates to adjust the distance between the two ear plates. The adjustment accuracy is low, and there are potential safety hazards in the operation process; if the vertical surface of the ear plates is twisted, it cannot be adjusted. Enlarging the aperture of the shaft sleeve for installation and use does not meet the technical requirements, and the service life of the grab is short; when the deformation of the lug plate is serious, it has to be scrapped, resulting in high cost of use

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