Angular Geared Motor Housing for Compact Low-Oil Gearboxes
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Solution Overview
Problem
Existing gear motors are not compact enough, leading to inefficiencies in space usage and lubrication requirements, as well as challenges in integrating components without unnecessary foot surfaces and torque support.
Innovation Solution
A gear motor design where the plate wheel protrudes into the channel, with an angle gear integration, a non-rotatable flange area for torque support, and an asymmetric housing part made of aluminum with a sloping channel and seal direction, reducing the need for lubricating oil and allowing for a more compact and efficient design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the plate wheel protrudes into the channel, then the gearbox becomes more compact, but the channel width must be increased
Solution Approach 1:
The plate wheel is positioned to protrude into the channel in the axial direction, utilizing three-dimensional space more efficiently. This dimensional arrangement allows the plate wheel to occupy space that would otherwise be unused, reducing the overall gearbox volume without requiring an increase in channel width.
Solution Approach 2:
The plate wheel is nested within the channel structure, with its projection in the axial direction partially overlapping with the channel. This nesting arrangement allows compact integration of components, achieving space efficiency without increasing the external dimensions of the channel.
2Quantity of substance
If the housing wall runs closer to the integration parts, then less lubricating oil is necessary, but the wall thickness in the area of threaded bores must be minimized
Solution Approach 1:
The housing part features locally optimized wall thickness: in areas where threaded bores are required, sufficient wall thickness is maintained to accommodate the bores, while in other areas the housing wall runs closer to the integration parts to reduce the overall interior volume and lubricating oil requirement. This local differentiation of wall thickness achieves both goals.
Solution Approach 2:
The housing part is designed with segmented wall thickness characteristics, where different regions have different wall thickness values optimized for their specific functions. This segmentation allows the housing to simultaneously provide structural integrity for screw connections and minimize oil volume in non-critical areas.
3Volume of moving object
If the channel is aligned at an angle to the wave direction, then the housing can be made more compact, but the screw holes must be drilled at angles rather than vertically
Solution Approach 1:
The channel is intentionally designed with an asymmetric angular alignment relative to the wave direction, creating a non-orthogonal configuration. This asymmetric arrangement optimizes the housing compactness by allowing more efficient spatial packaging of components, while the manufacturing complexity of angled screw holes is accepted as a trade-off.
Data Source
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AI summary
The invention relates to a geared motor, in particular a gearing that can be driven by an electric motor, in particular an angular gearing, comprising a housing part produced by means of a die casting process, in which or after which slides are moved, in particular pulled out, in respective pulling directions for demolding, and comprising an input shaft, the housing part having a channel which is demolded in a first pulling direction, in particular by means of a first slide, and which runs through the wall of the housing and leads into the interior region of the gearing, the pulling direction having a non-vanishing angle, the amount of which is between 5° and 45°, in particular between 5° and 20°, with respect to the axis of rotation of the input shaft.