Swing Cylinder Layout in Electric Work Machine Turning Frames
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Solution Overview
Problem
In work machines with a swing function, the large and heavy battery unit for powering the electric motor and hydraulic pump occupies a wide area on the turning frame, leading to potential interference with other components such as the swing cylinder.
Innovation Solution
The work machine is configured with a turning frame that includes a first and second vertical plate, a swing body, a hydraulic cylinder disposed on the outer side of the machine body, and an auxiliary vertical plate that supports the hydraulic cylinder, allowing for efficient layout and avoiding interference with other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the battery unit storage capacity is increased, then the electric power supply capability is improved, but the battery unit occupies a wide area on the turning frame causing interference with other components
Solution Approach 1:
The patent transitions from a two-dimensional planar layout to a three-dimensional spatial arrangement by positioning the battery unit beneath the turning frame. This allows the battery unit to utilize the vertical space under the turning frame, thereby increasing storage capacity without occupying additional horizontal area on the turning frame surface.
2Strength
If the battery unit is disposed closer to the center of the turning frame, then the turning frame strength is improved and weight balance is achieved, but interference with the swing cylinder and other members becomes a problem
Solution Approach 1:
The patent resolves the spatial conflict by moving the battery unit from the horizontal plane to the vertical dimension, placing it beneath the turning frame. This three-dimensional positioning allows the battery unit to be centrally located for optimal weight distribution and structural strength while completely avoiding horizontal interference with the swing cylinder and other surface-mounted components.
3Device complexity
If members such as electric motor and hydraulic pump are disposed on a side of the battery unit, then the layout is simplified, but interference with the swing cylinder becomes a problem
Solution Approach 1:
By positioning the battery unit in the vertical space beneath the turning frame, the patent creates additional horizontal space on the turning frame surface for arranging the electric motor and hydraulic pump. This three-dimensional layout strategy maintains simple linear arrangement of members while eliminating interference with the swing cylinder through vertical separation.
Data Source
AI summary
An exemplary work machine is a work machine including a turning body in front of which a work device is disposed, and the work machine includes: a turning frame constituting a bottom portion of the turning body; a first vertical plate and a second vertical plate extending from front to rear on the turning frame and disposed at intervals on left and right sides; a swing body horizontally rotatably supported by the turning frame in front of the first vertical plate and the second vertical plate and supporting the work device; a hydraulic cylinder disposed on an outer side of a machine body on a side opposite to the second vertical plate side with respect to the first vertical plate on the turning frame and having one end portion coupled to the swing body; and an auxiliary vertical plate that is disposed between the first vertical plate and the hydraulic cylinder and coupled to another end portion of the hydraulic cylinder.