A horizontal grabbing device with a straight line grabbing track

Abstract

The invention discloses a horizontal grab bucket device with a grab track being a straight line. The horizontal grab bucket device comprises a fixed base, a movable base, a left grab bucket body, a right grab bucket body, a first connecting rod and a second connecting rod; the first connecting rod and the second connecting rod are hinged, the first connecting rod is hinged to the movable base, and the second connecting rod is hinged to the fixed base; hinge points include A, B and D; the upper portion of the left grab bucket body and the upper portion of the grab bucket body are both hinged to the movable base, and hinge points include B' and E; the bucket tip of the left grab bucket body is C; AD is parallel to B'C, and the sum of AD and DB is B'C; and the horizontal grab bucket device further comprises a power mechanism used for directly and indirectly driving the first connecting rod to rotate by a set angle, a driving mechanism capable of guaranteeing that during running, AD and B'C keep parallel all the time and a synchronizing mechanism enabling the right grab bucket body and the left grab bucket body to synchronously and reversely move. According to the principle, complicated simulation work is not needed in the design process, and the grab track can be the straight line through a pure mechanical structure.

Description

technical field [0001] The invention relates to the improvement of the grab device of the slag removal mechanism of the aluminum electrolysis multifunctional crane, especially a horizontal grab device whose grab track is a straight line. Background technique [0002] The crane is the key equipment for the production of aluminum electrolytic prebaked anode electrolytic aluminum, and it plays an important role in the entire process of electrolytic aluminum. The slag removal mechanism is one of the main mechanisms of the crane. Its function is to fish out the carbon blocks and sundries remaining in the aluminum electrolytic cell. Since the temperature in the electrolytic cell is as high as nearly 1,000 degrees Celsius, the risk factor for manual operation is too big. The grab bucket of the currently used slag removal mechanism can complete the work well, but due to the defect of its own structural design, the trajectory of its operation is an arc, resulting in debris that cann...

AI Technical Summary

Problems solved by technology

The grab device with a purely mechanical structure must realize the opening and closing of the left and right grabs, and ensure that the running track of the tip of the grab is a straight line. Therefore, it is necessary to design various connecting rods or crank mechanisms. Since there is no unified principle support, The length, position, and operating angle of each connecting rod generally need to be simulated by special computer software. After continuous modification experiments, the obtained operating trajectory often cannot meet the ideal straight line requirements.

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