Connecting device enabling users to replace multi-specification hooks

Abstract

The invention discloses a connecting device enabling users to replace multi-specification hooks is composed of a conversion device and a hook. The hook comprises a hook head and a beam shaft. The conversion device comprises two conversion pull plates which are symmetrical in the left and right direction and a changeable bush ring, and the inner diameter d2 of the changeable bush ring is matched with the diameter of the beam shaft. The beam shaft penetrates through the changeable bush ring to be assembled between the two conversion pull plates, a pin shaft is arranged on a pin hole, and two ends of the pin shaft are connected with the lower end of a movable pulley lower support. Locating rings are arranged on two sides of the conversion pull plates on the pin shaft, and the positions and quantity of the locating rings enable the distance b1 between the two conversion pull plates to be matched with the length of the beam shaft. The connecting device has a complete conversion function and can be assembled with hooks with different sizes and tonnages. The hook can be changed into object taking devices such as hoisting plates, hoisting rings, hoisting beams, clamping tongs, container hoisting devices. The connecting device is favorable for standardization and modularization and serialization design and belongs to upgrading products in the field.

Description

technical field [0001] The invention relates to a hook coupling device for hoisting machinery. Background technique [0002] The self-weight of hooks of different tonnages is quite different, which has a great influence on the actual lifting capacity. Different working conditions have different lifting capacities. When lifting small lifting capacities, large-tonnage hooks are not needed, and most single-type cranes generally Only one type of tonnage hook is configured, and the replacement of different specifications of hooks cannot be realized. The hooks cannot be replaced, which is not conducive to the standardization, modularization and serialization of products. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a coupling device for interchanging multi-standard hooks in order to overcome the defects and shortcomings of non-replaceable hooks of different specifications in the traditional lifting device. [0004]...

AI Technical Summary

Problems solved by technology

[0002] The self-weight of hooks of different tonnages is quite different, which has a great influence on the actual lifting capacity. Different working conditions have different lifting capacities. When lifting small lifting capacities, large-tonnage hooks are not needed, and most single-type cranes generally Only one type of tonnage hook is configured, and the replacement of different specifications of hooks cannot be realized. The hooks cannot be replaced, which is not conducive to the standardization, modularization and serialization of products.

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