AGV Chassis Lifting Assembly Without Ring Gear Bulk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing automatic guided vehicle (AGV) chassis designs are not compact enough due to the use of ring gears, leading to low space efficiency, and the lifting mechanism can cause deformation and ground damage during material handling.
Innovation Solution
A chassis assembly with a lifting connecting rod assembly and a lifting power assembly that includes a lead screw, screw nut, and power output unit, allowing synchronous vertical movement without the need for a ring gear, and a dual-parallelogram structure to maintain balance and stability during lifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ring gear is used to drive the lifting mechanism, then the lifting function is achieved, but the chassis assembly becomes bulky and space efficiency is reduced
Solution Approach 1:
The patent extracts and eliminates the ring gear component from the lifting mechanism. Instead of using a ring gear to drive the lead screw, the invention directly drives the lead screw through a drive mechanism, removing the bulky ring gear structure while maintaining the lifting function. This extraction of the unnecessary component directly resolves the contradiction between achieving lifting operation and minimizing chassis volume.
Solution Approach 2:
The lifting mechanism is segmented into independent functional modules: the lead screw, screw nut, and drive mechanism are separately configured and connected. This segmentation allows for a more compact arrangement compared to the integrated ring gear structure, enabling better space utilization within the chassis assembly while preserving the lifting capability.
2Ease of operation
If the lifting mechanism is designed for material handling, then lifting capability is provided, but deformation occurs and ground damage may result
Solution Approach 1:
The patent employs a dual parallelogram linkage structure that acts as a counterbalancing mechanism. This linkage system provides mechanical counterweight effects that stabilize the lifting process, preventing deformation of the lifting mechanism and ensuring balanced material handling. The parallelogram structure maintains geometric stability throughout the lifting cycle, preventing the deformation issues that would otherwise occur.
Solution Approach 2:
The lifting mechanism incorporates dynamic elements including the rotatable lifting bracket and the coordinated movement of the dual parallelogram linkage. These dynamic components allow the mechanism to adapt during lifting operations, maintaining optimal geometry and force distribution to prevent deformation and ensure stable material handling without causing ground damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves space efficiency and prevents ground damage by eliminating the need for a ring gear and ensuring balanced lifting of materials, maintaining stability and compactness in the AGV design.
Implementation Method 1
a lead screw penetrating through the sleeve portion, a screw nut fixed to the sleeve portion and in thread fit with the lead screw
Implementation Method 2
the lifting bracket is configured to apply a force to the first end of the support base to cause the first end of the support base to move in a vertical direction
Data Source
AI summary
A chassis assembly includes: a chassis; a lifting connecting rod assembly arranged on the chassis; and a lifting power assembly, including a lifting bracket pivotally connected to one end of the lifting connecting rod assembly and a lifting drive mechanism arranged on the chassis and connected to the lifting bracket, wherein the lifting bracket includes a sleeve portion having a cylindrical hollow cavity; the lifting drive mechanism includes: a lead screw penetrating through the sleeve portion, a screw nut fixed to the sleeve portion and in thread fit with the lead screw, and a power output unit drivingly connected to the lead screw; and the power output unit is configured to cause the lead screw to rotate to drive the screw nut and the lifting bracket to rise or fall synchronously relative to the chassis. An automatic guided vehicle having the chassis assembly is included.