Lifting device and AGV with device

Abstract

The disclosure provides a lifting device and an AGV with the device. The lifting device comprises at least one lifting connecting rod, a turntable and a lifting driving mechanism. The at least one lifting connecting rod is obliquely arranged relative to a fixing module, the lower ends of the lifting connecting rods are rotatably and slidably connected to the fixing module, and the upper ends of the lifting connecting rods are rotatably connected to a lifting module. The turntable is rotatably arranged between the fixing module and the lifting module, and the turntable is provided with at leastone hole through which the at least one lifting connecting rod penetrates. Each hole is configured in the mode that the hole wall on one side serves as a contact hole wall and abuts against the lowerend of the corresponding lifting connecting rod, and the orthographic projection of the contact hole wall on the turntable is in the Archimedes spiral shape. The lifting driving mechanism is in transmission connection with the turntable, and the lifting driving mechanism is configured to drive the turntable to rotate. The lifting device is configured to slide the lower ends of the lifting connecting rods by rotating the turntable, so that the lifting connecting rods drive the lifting module to ascend and descend relative to the fixing module.

Description

technical field [0001] The present disclosure relates to the technical field of logistics storage and transportation equipment, in particular to a lifting device and an AGV trolley equipped with the device. Background technique [0002] The lifting and rotating structure of the existing AGV trolley usually includes design schemes such as multi-lead screw, hollow lead screw, rotating bucket, lead screw plus cam, multi-link, cylinder, oil cylinder and electric cylinder. Existing schemes can achieve the intended purpose, but each scheme has usage limitations and inherent defects. Especially on the small handling AGV, there is no perfect structure at present. [0003] For the existing AGV trolley, due to its particularity, the center of the lifting and rotating structure is also the center of the entire car body. It is easy to cause the lifting jam phenomenon. Therefore, the design of the lifting and rotating structure is relatively complicated and difficult to realize. The ...

AI Technical Summary

Problems solved by technology

Existing schemes can achieve the intended purpose, but each scheme has limitations of use and inherent defects

Especially there is currently no perfect structure for small handling AGVs

[0003] For the existing AGV trolley, due to its particularity, the center of the lifting and rotating structure is also the center of the entire car body. It is easy to cause the phenomenon of lifting stuck

Therefore, the design of the lifting and rotating structure is more complicated and difficult to realize

The existing solutions place the driving force around the center, such as the multi-screw structure, where three ball screws arranged at 120° are used to realize the lifting action. It is difficult to install and debug the force on the three screws at the same time. Lead screw life will be shorter

The flaw in the structure of the hollow lead screw is that the gears not only mesh but also move axially, and the wear is relatively large, which seriously affects the service life

The structure of the rotary lifting bucket is relatively poor in bearing partial load, and is not suitable for heavy-duty AGVs

Lead screw plus cam and multi-link jacking cost more and are also difficult to debug

Cylinders, oil cylinders, and electric cylinders are not suitable for small handling AGVs

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