Hydraulic Motor Decoupling Apparatus with Elastomer Damping
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Solution Overview
Problem
Existing apparatuses for connecting hydraulic motors to transmissions fail to optimally support axial and radial forces, bending loads, and are difficult to assemble or dismantle, leading to inefficient noise damping and force transmission.
Innovation Solution
A decoupling apparatus comprising two metal disks with radially inwardly disposed passages and an elastomer layer in between, featuring a mutually meshing profile, allowing for effective support of axial and radial forces, with a metal-to-elastomer ratio optimized for maximum damping and ease of assembly, and incorporating screw counterbores for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing apparatuses are used to connect hydraulic motors to transmissions, then the connection is established, but they cannot optimally support axial and radial forces and bending loads
Solution Approach 1:
The patent changes the physical parameters of the connection apparatus by introducing an elastomeric element with specific material properties (durometer hardness, elasticity modulus) and geometric parameters (thickness, profile shape) to optimize the support of axial and radial forces while maintaining reliable force transmission. The meshing profile geometry is specifically designed to distribute loads effectively.
Solution Approach 2:
The patent employs a composite structure combining metal disks with an elastomeric layer, leveraging the complementary properties of rigid metal (for structural support and force transmission) and flexible elastomer (for damping and adaptive force distribution). This composite approach enables simultaneous support of multiple force components including axial, radial, and bending loads.
2Ease of operation
If existing apparatuses are used, then connection is provided, but they are difficult to assemble or dismantle
Solution Approach 1:
The patent divides the connection apparatus into separable components: a first metal disk, an elastomeric element, and a second metal disk that can be assembled and disassembled independently. The elastomeric element is positioned between the metal disks and can be installed by sandwiching them together, allowing for easy assembly and disassembly without specialized tools or complex procedures.
3Object-affected harmful factors
If damping effect is increased, then noise damping improves, but support of radial and axial forces may be reduced
Solution Approach 1:
The patent optimizes the elastomeric element's material parameters (durometer hardness between 40-90, typically 60-80) and geometric parameters (thickness ratio relative to metal disk thickness between 0.1-0.5) to achieve a balance between damping performance and mechanical strength. The meshing profile geometry is designed to maintain structural integrity while enabling effective vibration damping.
Solution Approach 2:
The composite structure of rigid metal disks combined with a flexible elastomeric layer creates a system where the metal provides structural strength for force support while the elastomer provides damping capabilities. The interaction between these dissimilar materials enables simultaneous achievement of noise damping and mechanical strength without compromising either function.
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 apparatus effectively minimizes axial and radial forces, prevents uneven force transmission, and simplifies assembly and disassembly, while providing robust damping and structural support, ensuring a centered connection and improved manufacturing simplicity.
Implementation Method 1
an elastomer layer provided therebetween
Implementation Method 2
connect a hydraulic motor to a transmission in a manner damped for structure-borne noise
Data Source
AI summary
An apparatus for connecting a hydraulic motor to a transmission, wherein the apparatus comprises two metal disks and an elastomer layer provided therebetween, wherein both metal disks and the elastomer layer comprise at least one passage, and wherein the metal disks have an at least partly mutually meshing profile at the sides facing one another. The present disclosure is also directed to a construction machine having at least one hydraulic motor and having at least one transmission, wherein the hydraulic motor and the transmission are connected to one another by means of a corresponding apparatus.