Parallel four-linkage carrying device

Abstract

The invention discloses a parallel four-linkage carrying device. The parallel four-linkage carrying device is composed of parallelogram hinge mechanisms, a drive force supply device, a power system, a cargo transmission mechanism and a cargo loading platform, wherein four linkages are connected end to end by virtue of short shaft linking, the first linkage and the fourth linkage are connected end to end by a public long shaft, and the first linkage and the fourth linkage are integrally and fixedly connected with the public long shaft to enable the two groups of parallelogram hinge mechanisms to form an integer; the public long shaft is driven by the power system to carry out swinging rotation to enable the two groups of parallelogram hinge mechanisms to synchronously act, thus realizing that the second linkage always keeps a horizontal state and lifts back and forth between a high position and a low position; the drive force supply device is installed between the second linkage and the fourth linkage, thus saving energy consumption; the cargo loading platform is installed on the second linkage; the cargo transmission mechanism is located on the public long shaft, and between the two groups of parallelogram hinge mechanisms.

Description

technical field [0001] The invention belongs to a loading and unloading device in the field of logistics, in particular a parallel four-bar linkage handling device used for loading and unloading between high and low positions, and is also used in an automatic packaging production line as a transfer device to improve production efficiency. Background technique [0002] The general logistics site needs to transfer goods between the high platform and the ground. In order to realize this function, most of the loading and unloading of large-scale overall goods (such as large parts on the project site) use gantry handling devices, while the medium-sized logistics (such as containers) , diesel barrels, pallet stacks) can use scissor lifts, cranes or forklifts, but for bulk logistics (such as online shopping, agricultural products, etc.) and logistics on factory automated production lines, gantry, scissor lifts Due to their huge structure, large tonnage, large footprint, and slow ru...

AI Technical Summary

Problems solved by technology

However, in the known four-link loading and unloading equipment, there is a problem that the energy utilization rate is not high, that is, with the change of the swing angle of the connecting rod, the torque varies too much, and the actual required driving force also changes with the periodicity. Large fluctuations, so the motor power (or the motor power of the hydraulic pump) needs to be selected according to the maximum torque standard. In fact, the motor will only run at full load at a certain moment, and the average torque required for the entire process is only as long as the maximum torque. 64%, which causes at least 36% of the power (energy) waste of the motor itself, which is not conducive to energy saving and emission reduction

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