Cargo carrying table

Abstract

The invention discloses a cargo carrying table. Cam type anti-falling mechanisms symmetrically distributed along the two sides of a guide rail are designed, so that the requirement for the pre-installation and debugging precision of the anti-falling mechanisms is lowered, the adaptability to the stress balance and the running state of the cargo carrying table is improved, the starting interval time of the anti-falling mechanisms is effectively shortened, and the stability performance of bearing equipment is improved. The cargo carrying table is provided with two groups of cargo carrying table side arms connected with a lifting chain. Each group of cargo carrying table side arms is provided with one group of cam type anti-falling mechanisms. Two groups of through grooves, two groups of bottom end positioning plates, two groups of mandrels and two groups of upper end positioning seats are arranged on the cargo carrying table side arms. The positioning plates and the mandrels are located on the outer sides of the cargo carrying table side arms, and the upper end positioning seats are located on the inner sides of the cargo carrying table side arms. The cam type anti-falling mechanisms comprise lifting screw rods connected with the lifting chain, and the lifting screw rods penetrate through the tops of the cargo carrying table side arms. The upper ends of the lifting screw rods are connected with the lifting chain, and the lower ends of the lifting screw rods penetrate through a connecting rod.

Description

technical field [0001] The invention relates to a cargo platform using a cam anti-drop mechanism, which belongs to the field of logistics storage. Background technique [0002] At present, at the operation and delivery site of the three-dimensional logistics warehouse, various types of cargo-carrying equipment that are pulled by ropes for vertical lifting are usually used, and the cargo is transported between different working heights through the cargo-carrying equipment. [0003] The load-bearing parts of the existing cargo platforms usually use steel wire ropes or lifting chains. After long-term heavy load use, there are potential safety hazards that the load-carrying parts will be partially damaged or even broken. At this time, the cargo platform will fall freely and then Serious safety accidents will occur, causing injuries to workers and other equipment in the on-site environment. [0004] For example, the domestic patent previously applied by the applicant, the applic...

AI Technical Summary

Problems solved by technology

Since the mandrel is not on the symmetrical centerline of the two guide posts that provide guidance for the slider, the force transmitted from the lever to the slider during the anti-fall start process will not be consistent with the breaking of the rope and the falling direction of the loading platform. An included angle, the force can be decomposed into the vertical force that makes the slider move up and down and the horizontal force that is vertical to the guide post, and the horizontal force increases the friction between the slider and the guide post, hindering the sliding of the slider, so When the rope breaks, there will be a certain delay in the start of the anti-fall mechanism, so the safety performance needs to be further improved

In addition, the structure of the above-mentioned lever triggering the anti-falling device is asymmetrical, and contains many parts, and the installation is relatively complicated. The pre-installation and debugging accuracy of the equipment is high, and it is easy to cause the lever to be stressed due to the heavy load of the cargo platform. Unbalanced and further delays in the start of the anti-fall mechanism obviously cause obvious constraints and application limitations to the miniaturization and refinement of existing equipment and the optimization of three-dimensional storage operations.

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