A scallop grab

By designing gear meshing and a failure device for the fan-shaped shell grab bucket, the problem of material throwing caused by inconsistent hydraulic telescopic rod movements was solved, achieving synchronous rotation and stable lifting of the grab bucket body.

CN224716250UActive Publication Date: 2026-09-04HENAN DAFANG HEAVY MACHINERY
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Patent Information

Application Number
CN202521049495.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-09-04
Estimated Expiration
2035-05-27

AI Technical Summary

Technical Problem

Existing grab buckets sometimes throw materials because of inconsistent movements caused by individual differences in the hydraulic telescopic rods.

Method used

The design employs a fan-shaped clamshell grab bucket, which ensures the synchronous rotation of multiple grab bucket bodies through gear meshing and a failure device. The gear meshing ensures the synchronous rotation of the articulated rods, while the failure device is used to check and adjust the consistency of the hydraulic telescopic rod's movements.

Benefits of technology

This effectively avoids material spillage during material lifting, ensures synchronized movement of the grab bucket itself, and improves the stability and safety of lifting operations.

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Abstract

The utility model discloses a fan -shaped shell grab bucket belongs to the technical field of grab bucket, including stand and two grab bucket bodies, and the upper end surface of each grab bucket body is fixedly arranged with the hinged rod, and the top of each hinged rod is rotatably connected with the stand, and the outer surface of stand is hinged to two hydraulic telescopic rods, and the output of each hydraulic telescopic rod is hinged to corresponding grab bucket body, the top of each hinged rod is fixedly arranged with the gear, when using, when two grab bucket bodies drive two hinged rods synchronous rotation, two hinged rods synchronous rotation drive two gears rotate, because two gears interlock, when because two hydraulic telescopic rods exist action difference and lead to two grab bucket bodies rotate out -of -step situation appears, two gears can guarantee two hinged rods synchronous rotation, and then guarantee the synchronous rotation of grab bucket body, avoid two grab bucket bodies to have the phenomenon of throwing material behavior when the material of grabbing hoisting.
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