Safety type electro-hydraulic fork head device and three-way forklift

Abstract

The invention discloses a safety type electro-hydraulic fork head device and a three-way forklift. The safety type electro-hydraulic fork head device comprises a sliding frame. One end of the lateral moving frame is movably connected with the sliding frame, and a lateral moving motor used for driving the lateral moving frame to move in the transverse direction of the sliding frame is arranged on the lateral moving frame; and the auxiliary lifting frame is rotatably connected with the other end of the lateral moving frame, and the other end of the lateral moving frame is provided with a swing oil cylinder used for supporting and driving the auxiliary lifting frame to rotate. The swing oil cylinder is adopted to directly drive the auxiliary lifting frame to rotate, on one hand, the use of a complex transmission device is avoided, the structure is single and compact, the stability is high, and later maintenance is facilitated, on the other hand, the use of the swing oil cylinder avoids the problem of gear clearance existing in gear transmission, the start-stop position of the pallet fork is accurately controlled, and the work efficiency is improved. And the shaking amount in the rotating direction is eliminated, and safety and reliability are achieved.

Description

technical field [0001] The invention relates to the technical field of three-way forklift equipment, in particular to a safe electro-hydraulic fork head device and a three-way forklift. Background technique [0002] Chinese patent publication number: CN210620159U discloses a three-way forklift electric fork head, including a fork, a side shift assembly and a rotating assembly, the fork is connected to the rotating assembly, and the rotating assembly is connected to the side On the shifting assembly, the above-mentioned device uses electric fork heads instead of traditional hydraulic transmission fork heads and is applied in three-way stacking forklifts to realize the side shift and rotation functions of the fork, which can reduce the energy consumption of the fork during side shift and rotation, Reduce noise, improve efficiency, and improve the endurance of forklifts. However, the above-mentioned device has the following obvious defects in the use process: the fork is drive...

AI Technical Summary

Problems solved by technology

However, the above-mentioned device has the following obvious defects in the use process: the fork is driven to rotate by a rotating motor and a complex gear transmission, resulting in a complex structure, high failure rate, and inconvenient maintenance. As a result, there is a certain vacant position in the rotation action, and precise start-stop position control cannot be achieved. This problem is particularly critical in AGV vehicles. The deviation of the start-stop position of the fork may even lead to safety accidents in severe cases.

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