Brake Assembly Double Sleeve Elastic Damping
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Solution Overview
Problem
Electromagnetically actuated brakes generate disturbing noise levels, particularly when releasing the brake, due to the energization of the coil winding and electromagnet, which existing noise damping methods have not adequately addressed.
Innovation Solution
A brake arrangement featuring a double sleeve system with a ring part having an inner cone and an outer cone, where the outer cone rests on the inner cone, providing a restoring force that dampens the impact of the armature disk on the magnet body, and an adjustable mechanism using an adjusting screw and lock nut to optimize damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing noise damping methods are used in electromagnetic brakes, then some noise reduction is achieved, but the disturbing noise level during brake release remains inadequate
Solution Approach 1:
The damping element is divided into multiple stamp parts (first stamp part, second stamp part, etc.) that are distributed around the circumference of the armature disk. Each stamp part independently interacts with the sleeve part to provide damping force, segmenting the single damping function into multiple distributed damping zones that collectively reduce noise more effectively.
Solution Approach 2:
The damping system uses elastic deformation of the sleeve part and stamp parts to create a dynamic restoring force that adapts to the impact conditions. The elastic elements deform during armature disk impact and recover, providing a time-varying damping force that is most effective during the critical impact phase while allowing normal operation otherwise.
2Object-affected harmful factors
If a double sleeve system with elastic deformation is implemented, then impact noise is reduced, but the device complexity increases
Solution Approach 1:
The double sleeve structure nests one sleeve part inside another (or inside the armature disk recess), with the first stamp part interacting with the inner sleeve and the second stamp part interacting with the outer sleeve. This nested arrangement provides complex damping behavior through multiple elastic interactions while occupying minimal space and maintaining a compact overall structure.
Solution Approach 2:
The sleeve parts are designed as thin-walled elastic structures that deform under the impact of the stamp parts. These flexible shell structures provide the necessary elastic restoring force for noise damping while maintaining a simple geometric form that is easy to manufacture and integrate into the brake assembly.
3Reliability
If multiple stamp parts are used to enhance damping, then the damping effect is improved, but the manufacturing complexity increases
Solution Approach 1:
The damping function is segmented into multiple identical stamp parts that can be manufactured using the same process and then assembled in a standardized manner. Each stamp part has the same conical geometry and material properties, allowing for repeatable manufacturing and simplified quality control while providing enhanced damping through their collective action.
Solution Approach 2:
Each stamp part serves multiple functions: it provides the impacting surface for elastic deformation, defines the engagement geometry with the sleeve part, and contributes to the overall damping force. The conical shape of the stamp parts also guides the deformation process and ensures consistent contact with the sleeve parts during operation.
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 reduces impact noise by generating a restoring force through elastic deformation of the sleeve and stamp parts, enhancing the damping effect and allowing for adjustable damping characteristics.
Implementation Method 1
the sleeve part and the stamp part are elastically deformed before the armature disk impacts on the magnet body and thereby generate a restoring force acting on the armature disk, which dampens the impact
Implementation Method 2
electromagnetically actuated brakes reach a disturbing noise level of the brake, especially when releasing the brake, i.e. energizing the coil winding and thus the electromagnet of the brake
Data Source
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AI summary
The invention relates to a brake assembly having a coil former receiving a coil winding, in particular an annular winding, in particular magnetic bodies, and having an armature disk that is fixed to the coil former such that the armature disk is fixed against rotation but can be displaced, in particular displaced axially, in particular in the axial direction of a shaft to be braked, wherein at least one plunger part is connected to the armature disk, wherein the respective plunger part interacts with a sleeve part at least partially receiving the respective plunger part, wherein the sleeve part is connected to the coil former, in particular by a force fit, in particular wherein the sleeve part is held in a recess of the coil former by means of at least one resilient element.