Battery Stacking Column Pawl Support for Heavy Load Reliability
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Solution Overview
Problem
Existing stacking columns for storing heavy loads, such as electric vehicle batteries, suffer from structural weaknesses under high weights and acceleration forces, leading to potential damage and safety risks due to improper handling.
Innovation Solution
The pawl design is reinforced by a polygonal bolt support and stop, distributing the weight of the load away from the axle, using a U-profile with embedded polygonal bolt support and stop to secure the pawl in the working position, ensuring the axle remains weight-free.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If circular stop pins are used to provide rotational stop for the holding arms, then the structure is simple and easy to manufacture, but the stop pins break, bend or cause bending of the ratchet levers under high weights and acceleration forces
Solution Approach 1:
The invention changes the geometric parameter of the stop pin from circular to polygonal (e.g., hexagonal) cross-section. This parameter change increases the moment of inertia and resistance to bending and breaking under high loads, while maintaining ease of manufacture through standard polygonal bolt profiles.
Solution Approach 2:
The invention combines the polygonal stop pin with a polygonal support structure embedded in the U-profile, creating a composite support system. The stop pin and support work together to distribute and bear the high weights and acceleration forces, enhancing overall reliability without complicating manufacturing.
2Device complexity
If the axle supports the full weight of the load, then the structure is simple, but the axle and stacking column suffer from high wear under heavy loads
Solution Approach 1:
The invention segments the weight-bearing function from the rotational support function. The polygonal support embedded in the U-profile carries the weight of the load, while the axle only provides rotational support. This segmentation reduces wear on the axle and stacking column, improving reliability without significantly increasing device complexity.
3Object-affected harmful factors
If shock-absorbing material made of plastic or rubber is added to the pawl levers, then some force absorption is achieved, but the amount of material required is far too large to actually secure heavy loads
Solution Approach 1:
The invention changes from using soft shock-absorbing material (plastic or rubber) to using a rigid polygonal support structure embedded in the U-profile. This parameter change allows the support structure to absorb and distribute forces through its geometric form and structural integration, achieving shock absorption without adding excessive weight.
Data Source
AI summary
The invention relates to a stacking column for storing electric vehicle batteries one above the other or next to one another on or on pawls (7.1-7.3), wherein the pawls (7.1-7.3) are accommodated in a U-body and the U-body has two side walls (1.1, 1.2), a rear wall (2) and an opening edge, wherein the pawls (7.1-7.3) rotate about axes (8.1-8.3) from a resting position into a working position between the two side walls (1.1, 1.2) and have a support part (9) on one side of the axis (8.1-8.3) and a rear part (10) on the other side of the axis (8.1-8.3), wherein the pawl (7.1-7.3) is supported in the working position with the rear part (10) against a polygonal bolt stop (13), wherein the polygonal bolt stop (13) is arranged between the two side walls (1.1, 1.2) with on the rear wall (2) and the supporting part (9) rests on a polygonal bolt support (12), wherein the polygonal bolt support (12) rests between the two side walls (1.1, 1.2) at the opening edge ( ), suitable for supporting the support part (9) of the pawls (7.1-7.3) in the working position in a bottom side by the polygonal bolt support (12), the polygonal bolt stop (13) simultaneously bearing in a supporting manner in an upper side of the rear part (10) of the pawls (7.1-7.3).