Mowing Height Adjusting Device with Integrated Motor Housing
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Solution Overview
Problem
Existing automatic mowers have a large volume and high cost due to the complex electric adjusting components required for mowing height adjustment, which reduces reliability and increases space occupation.
Innovation Solution
A mowing height adjusting device with a compact lifting mechanism comprising a first housing and motor, where the motor is directly connected to the mowing component, allowing for rotation around a first axis to adjust the mowing height without excessive transmission mechanisms, using a threaded engagement for reliable and efficient height control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electric adjusting component with nut, screw, and transmission mechanism is used, then mowing height adjustment is achieved, but device volume and part quantity increase
Solution Approach 1:
The motor housing is integrated with the nut to form a unified structure, eliminating the need for separate transmission components. The motor directly drives the screw through the integrated nut, merging the motor housing and nut into one component that reduces part quantity while maintaining adjustment functionality
Solution Approach 2:
The motor housing serves multiple functions: it houses the motor, acts as the nut for threaded engagement with the screw, and provides structural support for the lifting mechanism. This multi-functional design eliminates separate components and reduces overall device complexity
2Reliability
If traditional electric adjusting component with separate motor and transmission mechanism is used, then mowing height adjustment is achieved, but overall structure volume increases
Solution Approach 1:
The motor housing and nut are merged into a single integrated component, eliminating the need for separate transmission mechanisms. This consolidation significantly reduces the volume of the adjusting component while maintaining all necessary functions for height adjustment
Solution Approach 2:
The motor is nested within the motor housing that also serves as the nut structure. This nested arrangement allows the motor to be housed within the functional nut structure, maximizing space utilization and minimizing overall component volume
3Reliability
If traditional electric adjusting component with multiple parts is used, then mowing height adjustment is achieved, but manufacturing cost increases
Solution Approach 1:
The motor housing and nut are manufactured as a single integrated component, reducing the total number of parts that need to be manufactured, assembled, and quality-checked. This consolidation lowers manufacturing complexity and cost while maintaining system reliability
Solution Approach 2:
The motor housing performs multiple functions (housing motor, acting as nut, providing structural support), which means one component replaces what would traditionally require multiple separate parts. This reduces material costs, manufacturing steps, and assembly 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 solution reduces the number of parts, cost, and overall volume, improving reliability and compactness while maintaining accurate height adjustment capabilities.
Implementation Method 1
the first motor is configured to drive the first housing to rotate around a first axis
Implementation Method 2
the convex structure is in threaded engagement with the first housing, a screw thread extending along the first axis is provided on the peripheral surface of the first housing
Data Source
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AI summary
The embodiment of the present disclosure provides a mowing height adjusting device and an automatic mower having the same. The mowing height adjusting device comprises a mowing component (20, 30) and a lifting mechanism, wherein the lifting mechanism comprises a first housing (41) and a first motor (42), the first housing (41) is directly connected with the mowing component (20, 30), the first housing (41) is configured to surround and form a first accommodating cavity, the first motor (42) is accommodated in the first accommodating cavity, the first motor (42) is configured to drive the first housing (41) to rotate around a first axis to drive the mowing component (20, 30) to move in a first direction, and the extension direction of the first axis is parallel to the first direction. The device is small in volume and compact in structure.