The connection assembly between the anchor seat of the crane and the bottom plate of the stopper device and the ground foundation

Abstract

The invention discloses a connecting assembly for base plates of anchor blocks and stop devices of a crane and a ground foundation. The connecting assembly is characterized in that screw holes in the base plates and screw holes in pre-buried steel plates are internally provided with shaft sleeves; the shaft sleeves are casing pipes with V-shaped opening grooves and placed in the screw holes in the base plates and the pre-buried steel plates, and the base plates of the anchor blocks and the stop devices of the crane are fixedly connected with the pre-buried steel plates on the ground foundation through nuts. Compared with the prior art, crane wind-resistance and anti-skidding safety facilities and the ground foundation are connected more reliably; normal exertion of the safety facility effect of the anchor blocks and the stop devices is guaranteed; the connecting assembly is simple in structure; foundation bolts are effectively prevented from being cut off; the essential safety of crane equipment is improved.

Description

technical field [0001] The invention relates to the technical field of fasteners, in particular to a connection assembly for an anchor seat of an open-air crane, a bottom plate of a stopper device, and a ground foundation. Background technique [0002] The safety of lifting equipment is related to the safety of enterprise property and employees, as well as the safety of national economic operation and social stability. It is an important part of public safety. The "Special Equipment Safety Law" clearly stipulates that in the production process, the manufacturer is responsible for the quality of the lifting equipment. This quality includes the intrinsic safety requirements of the equipment. Casualty accidents caused by hoisting machinery have occurred frequently in recent years. One of the main reasons is that hidden dangers of accidents have not been discovered in time. According to the relevant provisions of the "Safety Regulations for Hoisting Machinery" (GB6067-2010), f...

AI Technical Summary

Problems solved by technology

When selecting embedded bolts, too much attention is paid to the strength of the material, so that the embedded bolts can carry a large axial force, but the ability to resist shear and torsion is relatively weak, especially at the position where the cross-sectional area of ​​the head changes greatly. Ensure that the nuts are screwed in place. The threads on the bolts often go deep into the anchor seat and the bottom plate of the car bumper. Once a horizontal force is applied, the bolts are easily sheared in this area due to the stress concentration on the threaded parts.

Images