Counterweight Mounting Layout for Easier Battery Removal in Working Vehicles
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Solution Overview
Problem
The existing working vehicles face difficulty in easily mounting and dismounting batteries due to the need for large lifts when the battery is positioned behind a lateral rib, making detachable operations cumbersome.
Innovation Solution
The counterweight is mounted on the body frame using fixing bolts from the lower surface, eliminating the need for a lateral rib, and incorporating a recessed portion and shims to facilitate easy mounting and dismounting, with through holes and female threads for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a lateral rib is provided to increase rigidity of the body frame, then rigidity is improved, but the battery cannot be mounted or dismounted unless lifted up largely
Solution Approach 1:
The body frame is segmented into multiple reinforcement positions (front, rear, and lateral ribs) that can be independently configured. The lateral rib is selectively provided only when rigidity enhancement is needed, while maintaining clear spaces for battery operations in other configurations.
Solution Approach 2:
The counterweight is mounted from the lower surface side of the body frame, utilizing the vertical dimension and lower surface area. This approach eliminates the need for lateral rib interference by positioning the counterweight mounting path in a different spatial dimension, allowing battery operations to proceed without large lifts.
2Strength
If a lateral rib is provided to increase rigidity of the body frame, then rigidity is improved, but a welding step for mounting the lateral rib is required
Solution Approach 1:
The lateral rib is extracted as an optional component rather than a mandatory structural element. By providing the lateral rib only when rigidity enhancement is specifically needed, the patent eliminates unnecessary welding steps in configurations where the lateral rib is not required.
Solution Approach 2:
The body frame is designed with universal mounting capabilities through multiple reinforcement positions (front, rear, and lateral ribs) that can be selectively activated. This multi-functional design allows the same basic frame structure to serve both rigidity enhancement and ease of assembly requirements depending on the specific configuration chosen.
3Stability of the object's composition
If the counterweight is mounted on the lateral rib, then operational stability is improved, but the battery mounting operation becomes difficult
Solution Approach 1:
The counterweight mounting position is made dynamic and adaptable rather than fixed. The patent allows the counterweight to be mounted on either the lateral rib or the rear portion of the body frame, enabling flexible positioning that can accommodate both operational stability requirements and battery mounting operations without conflict.
Solution Approach 2:
The rear portion of the body frame serves as an intermediary mounting location between the lateral rib and the battery operation space. By providing this alternative mounting path, the patent mediates between the need for counterweight stability and the need for clear battery access, allowing operations to proceed without large lifts.
Data Source
AI summary
A working vehicle is provided that can easily perform a mounting and detaching operation of a battery therein. A working vehicle includes: a body frame; and a counterweight that is mounted on a vehicle rear portion of the body frame. The counterweight is mounted on the body frame by a plurality of fixing bolts that threadedly engage with the counterweight by way of the body frame from a lower surface side of the body frame.