Detection apparatus for rotational flexibility of lifting hook and lifting hook structure

Abstract

The invention discloses a detection apparatus for rotational flexibility of a lifting hook and a lifting hook structure, belonging to the technical field of machinery. According to the invention, the technical problem that accurate measurement of rotational flexibility of a lifting hook cannot be realized in the prior art is overcome. The detection apparatus for rotational flexibility of the lifting hook comprises a torque detection element, a power unit and a connecting piece, wherein the torque detection element is respectively in fixed connection with the connecting piece and a power output part of the power unit at least in a circumferential direction of a rotation axis of the connecting piece, the power output part of the power unit is used for applying torque on the torque detection element so as to allow the torque detection element to rotate, the rotating torque detection element drives the connecting piece to rotate around the rotation axis of the connecting piece, the torque detection element is used for detecting torque, and the connecting piece is in fixed connection with a rotating shaft part of the lifting hook in the circumferential direction of the rotation axis of the connecting piece. The detection apparatus for rotational flexibility of the lifting hook provided by the invention is arranged in the lifting hook structure. The detection apparatus is used for detecting rotational flexibility of the lifting hook.

Description

technical field

[0001] The invention relates to the field of mechanical technology, in particular to a hook rotation flexibility detection device and a hook structure provided with the suspension hook rotation flexibility detection device. Background technique

[0002] The hook is the key part of the crawler crane for lifting objects. With the wide application and installation of the crane, the requirements for the function of the hook are gradually increasing. The hook not only has a good carrying capacity but also requires the hook to have good rotation flexibility. , when lifting items, the hook head part of the hook can flexibly adjust the direction, making the operation of the item sleeved on the hook head part more convenient.

[0003] Such as figure 1 As shown, in the prior art, the hook 8 is installed on the crossbeam 9 between two opposite side plates 10 and rotates on the crossbeam 9 through the bearing 12, wherein:

[0004] The hook 8 includes a hook-shaped head...

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