Swivel Base Battery Layout for Balanced Hydraulic Working Machines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing swiveling working machines face challenges in balancing the center of gravity, achieving stable assembly, individually controlling cooling of cooling water and hydraulic fluid, preventing excessive current flow during battery switching, and optimizing energy usage.
Innovation Solution
The swiveling working machine is designed with a battery unit positioned at the rear, electric motor and hydraulic pump placed sideward of the battery unit, and a cooling mechanism disposed above these components. This configuration balances the center of gravity, facilitates easy assembly, allows individual control of cooling systems, prevents excessive current flow during battery switching, and promotes energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the main secondary battery is disposed at a center portion of the swivel base and the auxiliary secondary battery is disposed at a side portion, then the battery capacity can be increased, but the center of gravity balance deteriorates and the position becomes high
Solution Approach 1:
The patent combines the main secondary battery and auxiliary secondary battery into a single integrated battery unit disposed at the rear portion of the swivel base. This merging of separate battery components into one unified structure achieves both increased total battery capacity and improved center of gravity balance by consolidating the weight distribution to a lower, rear position.
2Adaptability or versatility
If the battery unit, electric motor, and hydraulic pump are disposed at different positions, then the functional layout is flexible, but the assembly time and labor increase
Solution Approach 1:
The patent merges the battery unit, electric motor, and hydraulic pump into a single integrated assembly that is disposed together at the rear portion of the swivel base. This combined arrangement maintains functional flexibility while significantly reducing assembly time and labor by installing these components as a unified group rather than separately at different locations.
3Device complexity
If a single fan is used for cooling both cooling water and hydraulic fluid, then the device complexity is reduced, but the individual cooling control capability is lost
Solution Approach 1:
The patent segments the cooling system into two independent fan units: a first fan dedicated to cooling the cooling water and a second fan dedicated to cooling the hydraulic fluid. This segmentation enables individual control of each cooling function, allowing the operator to activate only the required cooling system based on operational conditions, thereby improving ease of operation while maintaining manageable system complexity.
4Power
If the electric motor operates at standard rotation speed continuously, then the power output is maintained, but the energy consumption increases
Solution Approach 1:
The patent implements dynamic rotation speed control of the electric motor based on the operational state of the hydraulic equipment. The control unit adjusts the motor's rotation speed to match the actual power demand: operating at standard speed when full power is needed and reducing speed when lower power suffices. This dynamic adjustment maintains necessary power output while significantly reducing energy consumption during partial-load operations.
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
The design achieves a stable and balanced center of gravity, simplifies assembly, enables efficient cooling control, prevents excessive current flow during battery switching, and optimizes energy usage, thereby enhancing the overall performance and efficiency of the swiveling working machine.
Implementation Method 1
an electric motor that is driven by electric power output by the battery unit
Implementation Method 2
a hydraulic pump that delivers a hydraulic fluid by driving of the electric motor
Data Source
AI summary
A swiveling working machine includes a swivel base; a working device provided on a front side of the swivel base; a battery unit; an electric motor that is driven by electric power output by the battery unit; and a hydraulic pump that delivers a hydraulic fluid by driving of the electric motor. The battery unit is disposed at a rear portion of the swivel base. The electric motor and the hydraulic pump are disposed sideward of the battery unit side by side in a front-rear direction.