Coaxial Breech Guide Device for Rapid-Fire Weapons
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Solution Overview
Problem
Existing breech guiding devices for automatic rapid-fire weapons are complex, costly, and often suffer from limited functionality due to tight tolerances, leading to issues such as tilting or high frictional forces that increase wear and reduce actuating forces.
Innovation Solution
A breech guiding device with a coaxial arrangement of control and guide elements on a carrier element, featuring low-friction sliding or rolling mechanisms, including self-lubricating coatings or roller bearings, to minimize friction and enhance guiding stability, allowing for increased actuating forces with reduced wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tight tolerances are used in known closure guide devices, then guiding precision is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The guiding device is divided into separate functional components: a closure element with control element and guide element, a carrier element with control groove and guide groove, and a housing with guideways. This segmentation allows each component to be manufactured independently with standard tolerances, avoiding the need for complex tight-tolerance assemblies while maintaining guiding precision through the coordinated interaction of these simpler parts.
2Reliability
If guide play is increased to reduce sensitivity to dirt, then reliability is improved, but guiding precision deteriorates
Solution Approach 1:
The control element and guide element act as intermediary components between the closure element and the housing guideways. These elements can accommodate dirt and wear through their design (such as roller bearings or sliding surfaces), while still maintaining precise guiding through their controlled interaction with the guideways, thus mediating between the need for dirt tolerance and guiding precision.
3Manufacturing precision
If closely guided guide or control bolts are used, then guiding precision is improved, but frictional forces increase
Solution Approach 1:
The patent replaces traditional sliding contact mechanisms with rolling contact mechanisms (roller bearings) or optimized sliding surfaces. This substitution reduces frictional forces significantly while maintaining guiding precision, as rolling friction is much lower than sliding friction, and the controlled geometry of the control and guide elements ensures precise movement guidance.
4Force
If frictional forces are reduced through low-friction mechanisms, then actuating forces are improved, but wear may increase
Solution Approach 1:
The control element and guide element are designed with composite material properties or surface treatments (such as self-lubricating coatings or hardened surfaces) that provide both low friction and high wear resistance. This allows the mechanism to maintain low actuating forces while ensuring long service life through reduced wear of the contacting surfaces.
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 provides a compact, efficient breech block guiding device that reduces movement resistance and lateral acceleration, enhancing the weapon's functional reliability and accuracy by minimizing friction and wear.
Implementation Method 1
featuring low-friction sliding or rolling mechanisms, including self-lubricating coatings or roller bearings
Implementation Method 2
featuring low-friction sliding or rolling mechanisms, including self-lubricating coatings or roller bearings
Data Source
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AI summary
Breech guide device (30) for a breech arrangement (1, 100) of an automatic rapid-fire weapon, having a support element (32) which is arranged in the breech arrangement (1, 100), a control element (34) which is arranged on the support element (32) and is intended to control a weapon component, in particular a belt feed, a guide element (36) which is arranged on the support element (32) and is intended to guide the breech arrangement (1, 100) along a breech guideway (16, 18), wherein the support element (32) runs along an axis of symmetry (33) which runs perpendicular to a bore axis (24) and with respect to which the control element (34) and the guide element (36) are coaxially arranged. The invention also relates to a breech arrangement (1, 100) and to a rapid-fire weapon having such a breech guide device (30).