Full-Gear Four-Way Shuttle for Synchronized Lifting and Reversing

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Solution Overview

Problem

Existing four-way shuttles face issues with synchronized movement due to chain transmission and asynchronous hydraulic lifting, leading to maintenance challenges and increased labor costs.

Innovation Solution

A full-gear four-way shuttle design incorporating a two-direction travel servo motor planetary reducer, lifting and reversing servo motor planetary reducer, and gearboxes for synchronized movement, eliminating the need for electronic control and reducing hydraulic lifting malfunctions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If chain transmission is used for power delivery in four-way shuttles, then the shuttle can achieve multi-directional movement, but synchronized movement becomes difficult to maintain

Engineering Contradiction:

Improvemulti-directional movement capabilityVSAvoidsynchronized movement

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent replaces the traditional chain transmission mechanical system with a hydraulic transmission system. The hydraulic system uses fluid pressure to drive multiple wheels simultaneously, ensuring synchronized movement while maintaining multi-directional capability. The hydraulic pump and distribution valves control fluid flow to all wheels, providing consistent power delivery without the synchronization issues of chain drives.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs hydraulic transmission to power the four-way shuttle's movement. Hydraulic cylinders and hydraulic motors are used to drive the wheels in all directions. The hydraulic system's inherent ability to distribute fluid pressure evenly ensures that all driven wheels move in synchronization, resolving the synchronization problem while preserving versatile movement capability.

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Adaptability or versatility

If hydraulic lifting is used in four-way shuttles, then lifting function is achieved, but asynchronous lifting occurs requiring frequent maintenance

Engineering Contradiction:

Improvelifting functionVSAvoidmaintenance frequency

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines multiple hydraulic lifting mechanisms into a unified lifting system controlled by a single hydraulic control unit. This integrated approach ensures that all lifting points operate asynchronously is eliminated by centralizing the control, reducing maintenance requirements while maintaining the lifting function.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent incorporates feedback mechanisms in the hydraulic lifting system to monitor and adjust lifting operations in real-time. Sensors detect the position and status of lifting components, and the control system automatically adjusts hydraulic pressure and flow to ensure synchronized lifting, thereby reducing maintenance needs while preserving lifting capability.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20260054923A1Full-gear four-way shuttle and a working method thereof

Publication Date: 2026.02.26 BULLSEYE INTELLIGENT LOGISTICS EQUIPMENT (SUZHOU) CO LTD

AI summary

A full-gear four-way shuttle, including a two-direction travel servo motor planetary reducer, a jacking reversing servo motor planetary reducer, a jacking reversing gearbox, a jacking reversing drive shaft, a Y-direction travel gearbox and an X-direction travel gearbox. The disclosure also includes a method to operate the full-gear four-way shuttle, in which a jacking reversing servo motor planetary reducer drives a jacking reversing drive shaft to rotate through a jacking reversing gearbox and to move with a cam swing arm; the cam swing arm moves synchronously and drives the full-gear four-way shuttle to move in a reverse direction.