Retractable fork device

Abstract

The invention discloses a retractable fork device. The retractable fork device comprises a first-section fork, a second-section fork, a third-section fork and a fourth-section fork which are sequentially arranged cooperatively, wherein the first-section fork is provided with a circle of first chain wheel assembly, the second-section fork is provided with a circle of second chain wheel assembly, the first-section fork is provided with multiple double-gear driven chain wheels in the length direction, each double-gear driven chain wheel is provided with two parallelly arranged gear discs used formaking the two gear discs to respectively engaged with the first chain wheel assembly and the second chain wheel assembly, the first chain wheel assembly is connected with a first driving mechanism and used for driving the second chain wheel assembly to rotate when the first driving mechanism drives the first chain wheel assembly to rotate, and the third-section fork is provided with a row of first chain racks engaged with the second chain wheel assembly in the length direction. The retractable fork device has the advantages of being simple and compact in structure, easy to manufacture and maintain, strong in overall stability, high in safety and capable of achieving four-section telescoping.

Description

technical field [0001] The invention mainly relates to the field of logistics conveying equipment, in particular to a telescopic fork device. Background technique [0002] The telescopic fork is the main mechanism for accessing items, with automatic telescopic function, it is directly assembled on the stacker (lifting, moving platform), the stacker walks through the lanes between the shelves, and completes the work of automatic access to items ( Can also be assembled on a fixed workbench). There are following several technical problems in existing telescopic pallet fork: [0003] One is that the multi-stage forks of the existing telescopic forks, especially between other forks except the end forks, generally adopt a gear-matched transmission mode, which requires the configuration of multiple mutually cooperating gear transmission systems , the transmission coordination between the gears requires extremely high precision, which leads to the high precision of the processing ...

AI Technical Summary

Problems solved by technology

[0003] One is that the multi-stage forks of the existing telescopic forks, especially between other forks except the end forks, generally adopt a gear-matched transmission mode, which requires the configuration of multiple mutually cooperating gear transmission systems , the transmission coordination between the gears requires extremely high precision, which leads to the high precision of the processing and manufacturing of the gear components, and the second requires high installation and coordination precision of multiple gear transmission systems. , It also needs frequent inspection and maintenance to maintain extremely high transmission accuracy, resulting in time-consuming, labor-intensive, and high maintenance costs

[0004] The second is that the multi-stage telescopic fork itself has a complex structure, and the use of multiple gear transmission systems that cooperate with each other further leads to a very complicated structure of the telescopic fork, which is prone to maintenance problems during operation, causing the system to stop working and affecting work efficiency.

And this configuration also causes the weight of the equipment to be extremely heavy, which is not conducive to the transportation and movement of the equipment

[0005] Third, many existing telescopic forks can only achieve three-level telescopic expansion, and the telescopic method is not flexible enough, the system stability is not strong, and it cannot be well adapted to the current operating requirements.

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