Float Plate Decouples Slant Disk Torque in Lathe Alignment
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Solution Overview
Problem
Existing alignment mechanisms for on-vehicle disk brake lathes face challenges in independently rotating slant disks due to frictional forces, leading to torque coupling and increased wear, requiring additional force and size for adjustment.
Innovation Solution
Incorporating a float plate between the slant disks to limit rotational motion and prevent torque transfer, eliminating the need for drag forces and allowing separate rotation of the slant disks, with a centering structure and wave spring for maintaining alignment and compressive load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ring bearings are used to allow independent rotation of slant disks, then rotational freedom is improved, but frictional forces cause torque coupling between disks
Solution Approach 1:
A float plate is introduced as an intermediary element between the two slant disks. This float plate is supported by ring bearings and can rotate independently, preventing direct torque transfer between the slant disks while still allowing each disk to rotate freely. The float plate acts as a mediator that decouples the torque transmission path between the two disks.
2Reliability
If friction is increased to prevent slippage between elements, then engagement reliability is improved, but torque coupling between slant disks increases
Solution Approach 1:
The engagement path is segmented into separate stages. The float plate creates distinct engagement zones: one between the first slant disk and the float plate, and another between the float plate and the second slant disk. This segmentation allows friction to be applied locally at each interface without causing torque coupling across the entire assembly, as the float plate rotates independently to absorb differential movements.
3Stability of the object's composition
If wave spring pressure is increased to maintain element contact, then alignment stability is improved, but wear between elements increases
Solution Approach 1:
The float plate is designed to dynamically adjust its rotational position based on the relative movements of the two slant disks. As the disks rotate at different speeds or directions, the float plate rotates accordingly, maintaining optimal contact pressure distribution. This dynamic adjustment prevents excessive localized wear while maintaining alignment stability through the continuous action of the wave spring.
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
Enables precise and efficient alignment adjustments without torque coupling, reducing wear and the need for additional force, while maintaining the alignment of the spindle and hub axes during machining.
Implementation Method 1
a wave spring 46. The wave spring 46 applies pressure to maintain the base 20, the ring bearings (34, 36, 38), the slant disks (24, 26), and the cap (22) in contact
Implementation Method 2
Ring bearings are interposed between the elements to allow independent rotation of the two slant disks (24 and 26)
Data Source
AI summary
An alignment mechanism that employs two slant disks to adjust alignment between the axes of rotation of a lathe spindle and a wheel hub has a float plate positioned between the slant disks. Rotation of the float plate is limited with respect to a base, which affixes to the lathe spindle, and a cap, which affixes with respect to the wheel hub. Limiting rotation of the float plate prevents transfer of torque from one slant disk to the other when one slant disk is rotated with respect to the base and the cap by an alignment adjustment system to vary the angle and orientation of the misalignment between the two axes. Preventing such transfer of torque allows each of the slant disks to be independently adjusted by the alignment adjustment mechanism without applying a drag force to the slant disk.