Crane lifting hook capable of being automatically opened and closed

Abstract

The invention discloses a crane hook that can be opened and closed automatically. There is a vertical slideway in the side, a compression spring is arranged in the vertical slideway, a slider is provided on the top of the compression spring, the slider is connected with an anti-off rod, and the bottom end of the compression spring is connected to There is a steel wire, the bottom end of the inner wall of the hook point, and the top of the steel wire is provided with a steel sheet in a concave shape and a tension spring that is located at both ends of the steel sheet and is connected with the steel wire. Nested in the groove opened by the hook point. The hook uses the principle of spring compression and no-load reset to realize the automatic up and down movement of the anti-loosening rod and the automatic opening and closing of the hook body, saving manpower, high work efficiency, good anti-decoupling performance, light weight and high strength. High, long service life, good practicability, worthy of widespread promotion.

Description

technical field [0001] The invention relates to a construction machine, in particular to a crane hook which can be opened and closed automatically. Background technique [0002] Cranes, also known as cranes, refer to multi-action hoisting machinery that vertically lifts and horizontally transports heavy objects within a certain range. The working characteristic of the crane is to do intermittent movement, that is, the corresponding mechanisms for taking materials, moving, and unloading in a working cycle are alternately working, and are widely used in industrial production, construction, freight terminals, warehousing and other industries. , mainly used to lift various goods. In addition to the power unit and the steel rope for hoisting, there are also hooks on the crane, and the hook is an important part of the crane. It plays an important role in the whole lifting process and bears all the loads of lifting. Its Safety directly affects the operation of the crane. During u...

AI Technical Summary

Problems solved by technology

However, the anti-off design has the following defects: since the anti-off rod is close to the inner wall of the hook tip of the hook body, when taking out or replacing the sling, it is necessary to artificially press down the anti-off rod toward the inner space of the hook body , if the sling is heavy, two or more people are required to complete the operation, which is a waste of manpower; in addition, because the anti-loosening rod occupies the opening area of ​​the hook body, if the size of the sling is large, it will be damaged due to the anti-loosening rod and the hook tip of the hook body. The opening area between them is small, which increases the difficulty of replacing or taking out the sling and reduces work efficiency

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