Linear-Drive Forging Hammer With Ram Motion Decoupling
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Solution Overview
Problem
Existing forging hammers with electric linear drives face issues due to secondary motions of the ram, which can negatively affect the running of the linear rotor and stator, leading to mechanical loading and potential damage, and result in impaired driving characteristics and forging results.
Innovation Solution
Incorporating a flexurally elastic decoupling structure between the linear rotor and the ram to decouple secondary motions, such as vibrations and tilting, and using dual linear guides to stabilize the axial position of the linear rotor, thereby reducing mechanical loads and maintaining a consistent air gap between the rotor and stator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the linear rotor is directly connected to the ram, then the structure is simple, but secondary motions of the ram negatively affect the running of the linear rotor and stator, leading to mechanical loading and potential damage
Solution Approach 1:
A decoupling structure is introduced as an intermediary element between the linear rotor and the ram. This decoupling structure absorbs secondary motions (vibrations, tilting) of the ram, preventing them from being transmitted to the linear rotor and stator, thus protecting the electromagnetic components while maintaining structural connectivity.
Solution Approach 2:
The connection between the linear rotor and the ram is segmented into two functional parts: the primary driving connection (for transmitting driving force) and the secondary motion isolation (handled by the decoupling structure). This segmentation allows the system to maintain simplicity while protecting against harmful secondary effects.
2Power
If the linear rotor is directly connected to the ram, then the driving force transmission is direct, but mechanical loads from secondary motions cause potential damage to the linear motor
Solution Approach 1:
The decoupling structure serves as a mechanical intermediary that filters out harmful secondary motions while allowing the primary driving force to be transmitted effectively from the linear rotor to the ram, thus protecting the linear motor from excessive mechanical loads.
Solution Approach 2:
The decoupling structure is designed with cushioning capabilities to absorb and mitigate mechanical loads from secondary motions before they can reach and damage the linear motor components, providing preemptive protection.
3Device complexity
If no decoupling structure is used, then the device is simpler, but the air gap between rotor and stator varies, impairing driving characteristics
Solution Approach 1:
The decoupling structure acts as a mediator that stabilizes the position of the linear rotor relative to the stator by absorbing ram movements, thereby maintaining a consistent air gap and ensuring stable electromagnetic driving characteristics without adding excessive complexity.
Solution Approach 2:
The decoupling structure introduces dynamic compliance to the system, allowing it to adapt to ram movements while maintaining the linear rotor's position stability, thus preserving air gap consistency through controlled flexibility rather than rigid constraints.
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 decoupling structure and dual linear guides effectively absorb secondary motions, reducing mechanical loading on the linear motor, stabilizing the air gap, and improving the driving characteristics and reliability of the forging hammer.
Implementation Method 1
Incorporating a flexurally elastic decoupling structure between the linear rotor and the ram to decouple secondary motions
Implementation Method 2
The decoupling structure and dual linear guides effectively absorb secondary motions, reducing mechanical loading on the linear motor
Implementation Method 3
using dual linear guides to stabilize the axial position of the linear rotor, thereby reducing mechanical loads and maintaining a consistent air gap between the rotor and stator
Implementation Method 4
an electric linear drive, having a linear rotor and a ram or hammer ram that is coupled to the latter, for the purpose of executing forging motions
Implementation Method 5
Within the meaning of the present application, an electric linear drive is to be understood to mean, in particular, an electric linear motor
Data Source
AI summary
The basic invention relates, in particular, to a forging hammer, comprising an electric linear drive, having a linear rotor and a ram that is coupled to the latter for the purpose of executing forging motions, wherein the linear rotor and the ram are connected to each other through an interposed flexurally elastic decoupling structure that acts between the linear rotor and the ram, and the decoupling structure is realized and arranged to decouple the linear rotor, at least partly, from relative motions of the ram relative to the linear rotor that occur during a forging motion.