Pool Cleaning Robot Motor Locking Unit for Rotation Restraint
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Solution Overview
Problem
There is a growing need to prevent motor unit movement due to rotation of the motor axis in pool cleaning robots, while also streamlining production, reducing costs, and avoiding the use of aggressive chemicals.
Innovation Solution
A locking unit with threaded openings and securing elements, including sawtooth arrays, is provided to mechanically couple with the motor axis, preventing rotational movement and allowing for easy manual locking and release, thereby reducing motor rotation within the motor housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional motor securing methods are used, then motor rotation is prevented, but production costs increase and aggressive chemicals are required
Solution Approach 1:
The motor housing is divided into two separate portions: an internal portion that rotates with the motor and an external portion that remains stationary. The locking unit bridges these two portions, preventing relative rotation without requiring complex chemical bonding or expensive torque tools. This segmentation allows for simple mechanical interlocking that is easy to manufacture and assemble.
Solution Approach 2:
The locking unit acts as an intermediary component between the internal and external motor housing portions. It provides a simple mechanical connection that prevents motor rotation while avoiding the need for aggressive chemicals or specialized equipment. The locking unit with its teeth and grooves creates a straightforward interlocking mechanism that is inexpensive and easy to produce.
2Reliability
If complex locking mechanisms are used, then motor security is improved, but assembly and disassembly become difficult
Solution Approach 1:
The locking unit incorporates a movable portion that can shift between locked and unlocked positions. The teeth on the locking unit engage with corresponding grooves in the motor housing to prevent rotation when locked, but can be easily disengaged by moving the movable portion. This dynamic design allows for simple manual operation during assembly and disassembly while maintaining secure motor fixation during operation.
3Stability of the object's composition
If motor housing is made rigid to prevent rotation, then motor stability is improved, but stress concentration occurs
Solution Approach 1:
By dividing the motor housing into internal and external portions, the design allows the internal portion to rotate independently while the external portion remains stationary. This segmentation distributes mechanical stresses more evenly throughout the structure, preventing stress concentration that would occur in a completely rigid housing. The locking unit provides the necessary stability without requiring the entire housing to be rigid.
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 effectively prevents unwanted motor rotation, reduces production costs by eliminating the need for aggressive chemicals and expensive torque tools, and facilitates easy assembly and disassembly in production and repair environments.
Implementation Method 1
The movable portion may be connected to a spring
Implementation Method 2
the threaded opening may be shaped and positioned to mesh, in a coaxial manner, with a thread that may be mechanically coupled to an axis of a motor
Data Source
AI summary
A kit that may include a locking unit and an external portion of a motor housing; wherein the locking unit comprises a threaded opening and first securing elements; wherein the external element comprises an opening and second securing elements; wherein the threaded opening is shaped and positioned to mesh, in a coaxial manner, with a thread that is mechanically coupled to an axis of a motor; wherein the first securing elements and the second securing elements are shaped and positioned to mesh with each other and prevent a rotational movement between the first securing elements and the second securing elements.