A new type of variable-diameter log grab

Abstract

The invention discloses a novel log gripper with variable diameter. When the log gripper is operated to grab logs of different specifications, the relative position of the rotation point of the gripping mechanism can be changed through the diameter-changing mechanism, so as to achieve the purpose of diameter-changing, and can be more Effective and stable grabbing of logs within a certain range of radius. Secondly, the upper side wall of the frame is an inverted V-shaped structure, and the side wall is equipped with a load-sharing buckle and a load-sharing seat, which can share the load for the diameter-reducing mechanism when the diameter-reducing mechanism is in the maximum diameter-reducing state and the minimum diameter-reducing state. Improve usability. In addition, the diameter reducing mechanism is a parallel four-bar linkage structure, which can keep the posture of the grabbing mechanism unchanged during the diameter changing process. At the same time, the upper end of the claw of the grabbing mechanism is provided with a drive arm and The through slot enables the grabbing mechanism to maintain an inconvenient posture during the diameter changing process, and will not affect the deformation of the diameter changing mechanism during the grabbing process.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a novel variable-diameter log grab. Background technique [0002] my country's timber consumption is growing rapidly, and China has become the world's largest timber importer. Our country imports a large amount of logs from abroad every year. The current extensive log loading and unloading process and equipment working methods in the workplace have resulted in a high disability rate and low efficiency for log workers. The span of log specifications and weight is huge. Generally speaking, the air-dry density value of wood can be changed from 0.12g / cm2 of smaller balsa wood. 3 1.2~1.36g / cm to larger serpentine wood 3 , with a wide range of values. [0003] At present, the loading and unloading of logs with smaller diameters is generally carried out with conventional equipment, while the loading and unloading of logs with larger diameters must be completed with special equipm...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that because the existing single-type wood loading and unloading manipulator cannot adjust the grabbing radius of the gripper according to the specifications of the logs to be grabbed, it is unable to handle the loading and unloading of logs of all specifications and all types of wood. low efficiency

Images