Hammer Device Dual-Axial Impact Force Storage Mechanism

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Solution Overview

Problem

Existing tools, such as those described in DE 10 2011 007 050 B4, can only exert forces in one direction and require coupling with the component to be loosened, limiting their effectiveness in applications like cleaning clogged slots in ball mills where forces need to be applied in both axial directions.

Innovation Solution

A hammer device with an impact mechanism that stores and releases impact force in both axial directions, using an impact force storage means like an elastomer body or metallic spring to convert kinetic energy from the axial direction into counter-axial direction, allowing for efficient cleaning of clogged slots without manual labor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a conventional hammer tool is used to clean clogged slots, then manual labor is required to remove clamping bodies, but the cleaning process becomes labor-intensive and time-consuming

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidmanual labor intensity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The hammer device automatically generates impact forces in both axial directions through its internal mechanism, eliminating the need for manual intervention to change tool orientation or apply forces from different directions. The device serves itself by converting single-direction impact forces into dual-direction cleaning action through the elastic body and tool arrangement.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The hammer device dynamically adapts its force application by using an elastic body to store and release impact energy, enabling the tool to deliver impacts in both axial directions automatically. This dynamic mechanism allows the device to switch between pushing and pulling actions on clamping bodies without manual intervention.

Inventive Principle:
Principle #15Dynamics

2Productivity

If a conventional hammer tool is used, then only forces in one axial direction can be applied, but cleaning effectiveness is reduced

Engineering Contradiction:
Improvecleaning effectivenessVSAvoidforce application capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The elastic body acts as a dynamic energy storage element that captures impact forces in one direction and releases them in the opposite direction. This dynamic mechanism enables the hammer device to automatically apply forces in both axial directions, significantly improving cleaning effectiveness for slots blocked by clamping bodies.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The elastic body serves as an intermediary between the impact mechanism and the tool, converting single-direction impact forces into dual-direction force application. This intermediary element enables the tool to exert forces in both axial directions by storing and releasing elastic energy during the impact cycle.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If manual lever tools are used to remove clamping bodies, then the slots can be cleaned, but the process is time-consuming and may not always achieve desired cleaning results

Engineering Contradiction:
Improvecleaning completenessVSAvoidcleaning duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The hammer device automatically performs the complete cleaning cycle by generating impact forces in both directions through its internal mechanism. The device self-regulates the force application and direction changes, ensuring reliable removal of clamping bodies without manual intervention, thereby achieving complete cleaning results consistently.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The hammer device applies periodic impact forces in alternating axial directions to progressively dislodge and remove clamping bodies from slots. This periodic dual-directional impacting ensures thorough cleaning by repeatedly pushing and pulling on obstructing materials until complete clearance is achieved.

Inventive Principle:
Principle #19Periodic action

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

Enables efficient and reduced labor-intensive cleaning of clogged slots in ball mills by allowing impact forces to be applied in both directions, improving throughput and reducing wear and tear, and can be used for various applications like loosening bolts or stuck components.

Implementation Method 1

at least one impact force storage means (15), which is designed to at least partially store an impact force of the impact mechanism in the axial direction and to release it again at least partially as an impact force in the opposite axial direction

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

impact mechanism (12), which is designed to be able to impact a tool (2) in an axial direction (A)

Methodology Applied
Scientific EffectKinetic energy conversion: Impact Force

Data Source

PatentEP3408058B1Hammer device
Publication Date: 2021.10.27 ZENZ HOLGER
  • EP3408058B1 patent drawingFigure 1
  • EP3408058B1 patent drawingFigure 2
  • EP3408058B1 patent drawingFigure 3

AI summary

The invention relates to a hammer device (1), in particular a manual hammer device (1), comprising a percussion mechanism (12) which is designed to carry out a percussion movement on a tool (2) in the axial direction (A). Said hammer device is characterised in that it comprises at least one percussion force storing means (15) designed to at least partially store a percussion force of the percussion mechanism (12) in the axial direction (A), and to at least partially release said force in the form of a percussion force in the opposite axial direction (B).