Three degree-of-freedom self-stabilizing box body grab bucket based on parallel mechanism

Abstract

The invention relates to a three degree-of-freedom self-stabilizing box body grab bucket based on a parallel mechanism. The grab bucket comprises the three degree-of-freedom parallel mechanism, a fixing plate, four electric slide tracks and four machine claws, wherein the three degree-of-freedom parallel mechanism is arranged right above the fixing plate, and connected with the fixing plate through bolts; the fixing plate adopts a square structure; the electric slide tracks are respectively arranged on the four top angular bisectors of the fixing plate and are fixedly connected with the fixing plate; the machine claws are respectively mounted under the electric slide tracks. The space motion states of the grab bucket can be realized by controlling the rising, falling, speed changing and stopping operation of an electric push rod; the three degree-of-freedom parallel mechanism adopting a 3-RPS mode can perform motion in one translating direction and two rotating directions, namely three degree of freedom directions; the control is simple; the motion property is excellent; the stability in box body grabbing is enhanced; the box body is prevented from shaking in a conveying or lifting process.

Description

technical field [0001] The invention relates to the field of grabbing equipment, in particular to a three-degree-of-freedom self-stabilizing box grab based on a parallel mechanism. Background technique [0002] The grab bucket is a bucket that can be opened and closed by grabbing sand, gravel and various bulk goods. It is a spreader that mainly relies on the opening and closing of two combined buckets on the left and right or multiple jaw plates to grab and discharge bulk materials. According to the classification of the shape, the grab can be divided into a shell-shaped grab and a orange-shaped grab. The former is composed of two complete buckets, and the latter is composed of three or more jaw plates; according to the driving method, it can be divided into hydraulic There are two types of grabs and mechanical grabs. [0003] With the development of modern logistics, the transportation of goods is more and more developed. Now the goods are mostly loaded in boxes, and for l...

AI Technical Summary

Problems solved by technology

[0003] With the development of modern logistics, the transportation of goods has become more and more developed. Now goods are mostly loaded in boxes, and large-scale cargo equipment is loaded in containers. Therefore, in ports, transportation stations, and some free trade zones, containers There are a lot of body handling every day. At present, manual handling is used for small box handling, forklifts are mostly used for large box handling, and grabs and cranes are used for container handling. There is no professional grab for the existing box handling and lifting. , the claw type grab is commonly used, this kind of grab will do a lot of damage to the outside of the box, and sometimes even destroy the items inside the box. At the same time, the grab is carried out with the cooperation of the crane. Therefore, the grab It is very easy to shake and bump when moving the box, which is easy to cause damage to the items in the box

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