Floating Housing Force Transmitting Assembly Axial Wear Reduction
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Solution Overview
Problem
Existing force transmitting assemblies, such as brake and clutch systems, experience high wear due to continuous forces applied to splined couplings, leading to reduced durability and performance.
Innovation Solution
A force transmitting assembly design that includes a mounting flange, a rotor disc, a float plate, a pressure plate, and a spring housing forming a fluid pressure chamber, with sliding studs supporting axial movement of these components, allowing the housing to move axially instead of the rotor disc during engagement and disengagement, thereby reducing wear and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If splined couplings are used to connect rotor disc and shaft, then axial movement of rotor disc during engagement is enabled, but high wear occurs on the splines due to continuous forces
Solution Approach 1:
Instead of moving the rotor disc axially during engagement as in conventional designs, this invention moves the housing axially relative to the stationary rotor disc. The rotor disc remains fixed on the shaft while the entire housing assembly slides along the shaft, inverting the traditional approach and eliminating wear on the splined coupling between rotor disc and shaft
Solution Approach 2:
The invention extracts the axial movement function from the rotor disc-shaft connection and relocates it to the housing-shaft connection. By separating the housing from the rotor disc in terms of movement responsibility, the splined coupling between rotor disc and shaft is protected from wear while the housing's splined coupling with the shaft handles all axial movement during engagement
2Productivity
If rotor disc is allowed to move axially during engagement, then braking action is achieved, but wear on splined coupling increases
Solution Approach 1:
The invention inverts which component performs axial movement during braking. Instead of the rotor disc moving relative to the housing, the housing moves axially relative to the stationary rotor disc. This is achieved by making the housing a floating component that can slide along the shaft, while the rotor disc remains firmly connected to the shaft and does not move axially
Solution Approach 2:
The shaft serves as an intermediary element that remains stationary while transmitting rotational motion. The housing slides along the shaft during axial movement, and the rotor disc rotates on the shaft without axial displacement. This intermediary arrangement allows braking action through housing movement while protecting the rotor disc-shaft connection from wear
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
This design minimizes wear and enhances the robustness of the assembly by keeping the rotor disc stationary during braking, reducing rotational inertia and preventing friction linings from detaching, resulting in a more durable and efficient braking mechanism.
Implementation Method 1
a spring housing, which operates as a piston, and a cylinder coupled to the spring housing to form a fluid pressure chamber, wherein the spring housing moves in a first direction when pressurized fluid enters the fluid pressure chamber and the spring housing moves in a second direction when pressurized fluid exits the fluid pressure chamber
Implementation Method 2
at least one sliding stud slidingly supporting the float plate, the pressure plate, and the spring housing to allow axial movement of at least one of the float plate, the pressure plate, and the spring housing
Implementation Method 3
Braking occurs when friction linings attached to plates on either side of the rotor disc clamp down onto the rotor disc. The engagement between the rotor disc faces and the friction linings creates braking action, slowing and eventually stopping rotation of the rotor disc
Data Source
AI summary
A brake assembly includes a mounting flange having a central opening to receive a shaft, a rotor disc mounted on the shaft and rotatable with the shaft, a float plate having a first friction surface engageable with one face of the rotor disc, and a pressure plate having a second friction surface engageable with another face of the rotor disc. The brake assembly also includes a spring housing, which operates as a piston, and a cylinder coupled to the spring housing to form a fluid pressure chamber. The spring housing moves in a first direction when pressurized fluid enters the fluid pressure chamber and in a second direction when pressurized fluid exits the fluid pressure chamber. The assembly further includes at least one sliding stud to allow axial movement of at least one of the float plate, the pressure plate, and the spring housing to allow axial movement.