Electromagnetic Servo Brake Thrust Unit Ball Joint
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electromagnetic servo brakes experience significant transverse force components on the primary piston due to rigid connections, leading to uneven wear, unlike pneumatic servo brakes which have negligible transverse components.
Innovation Solution
A thrust unit with a push rod featuring a spherical cap end and a ball end, connected via a bearing with a tulip clamp and sleeve assembly, allowing for transverse freedom and preventing the transmission of transverse forces to the primary piston.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid connection is used to connect the servo piston to the primary piston, then the structural stability is improved, but significant transverse force components are transmitted to the primary piston causing uneven wear
Solution Approach 1:
The invention changes the connection parameters from rigid to flexible by introducing a ball joint mechanism. The push rod connects the servo piston to the primary piston through a ball joint that allows angular movement, transforming the transmission of forces while maintaining structural stability. This parameter change enables the system to accommodate misalignment and eliminate harmful transverse force components.
Solution Approach 2:
The ball joint acts as an intermediary element between the servo piston and the primary piston. This mediator allows relative angular movement while transmitting the longitudinal thrust force, preventing direct transmission of transverse forces that would cause uneven wear on the primary piston.
2Power
If a rigid thrust rod is used to connect the servo piston to the primary piston, then the force transmission efficiency is improved, but the transverse component of thrust causes uneven wear of the primary piston
Solution Approach 1:
The invention introduces dynamic capability to the connection system through the ball joint mechanism. The push rod can dynamically adjust its angular position to accommodate movements and misalignments, maintaining efficient force transmission while preventing harmful transverse forces. This dynamic adaptation ensures both high power transmission and uniform wear characteristics.
3Measurement precision
If the servo piston is rigidly connected to the electromagnetic drive, then the control precision is improved, but the thrust unit cannot adapt to transverse movements causing significant transverse forces
Solution Approach 1:
The invention segments the connection system into distinct functional elements: the electromagnetic drive, the servo piston, the push rod with ball joint, and the primary piston. This segmentation allows the rigid electromagnetic drive to maintain control precision while the ball joint segment provides adaptability to transverse movements, isolating the harmful effects.
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 transverse force transmission to the primary piston without modifying the master cylinder or assembly, reducing wear and enhancing the servo brake's operational efficiency.
Implementation Method 1
the rear end comprising a ball, and formed of a bearing having a base pressed against the reaction disk and a sleeve receiving the ball of the push rod
Data Source
AI summary
A servo brake includes a thrust unit connecting a servo-piston to a primary piston in an actuation direction. The thrust unit includes a plunger with a front end in the form of a spherical cap and pressed in a cup of the primary piston and a rear end that includes a ball joint. A bearing has a base pressed on a reaction disc and a sleeve that receives the ball joint of the plunger.