Telescopic Shaft Washing Nozzles for Friction Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing telescopic shafts face issues with maintaining the friction coefficient between movable telescopic elements, leading to uncontrolled movement and potential damage due to incorrect or infrequent maintenance, which results in undesired variations in the closing sequence and potential falling of free telescopic elements.
Innovation Solution
A washing system that uses nozzles to deliver a washing liquid under pressure onto the external surfaces of movable telescopic elements, with a drain duct to collect and remove the liquid, ensuring effective cleaning and maintenance of the telescopic shaft during its movement between extended and retracted positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequent manual washing and greasing is performed to maintain friction coefficient, then reliability of telescopic shaft movement is improved, but loss of time and productivity deteriorate due to frequent maintenance interruptions
Solution Approach 1:
The washing system is integrated into the telescopic shaft structure itself, with nozzles positioned to automatically wash the telescopic elements during normal operation. The system uses the shaft's own movement to enable cleaning, eliminating the need for separate manual maintenance operations and allowing the system to maintain itself during regular use cycles.
Solution Approach 2:
The washing system cleans the telescopic elements before friction and contamination can significantly affect performance. By continuously or periodically washing during operation, the system prevents buildup of contaminants that would otherwise require frequent manual intervention, maintaining optimal friction coefficients proactively rather than reactively.
2Productivity
If manual maintenance is performed less frequently to improve productivity, then loss of time is reduced, but reliability deteriorates due to variable friction and uncontrolled closing sequence
Solution Approach 1:
The washing system operates continuously or periodically during the telescopic shaft's normal operation cycles, maintaining constant cleanliness of the telescopic elements. This continuous cleaning action ensures that friction coefficients remain within acceptable ranges throughout extended operation periods, eliminating the need for frequent manual maintenance interruptions while guaranteeing reliable operation.
Solution Approach 2:
The system maintains itself automatically during normal operation, with the washing mechanism integrated into the telescopic shaft structure. This self-maintaining capability allows continuous productivity without manual intervention while ensuring reliability through consistent cleaning that prevents friction variation and maintains proper closing sequence control.
3Device complexity
If the telescopic shaft structure is simplified without integrated washing system, then device complexity is reduced, but ease of operation deteriorates due to difficult access for manual maintenance
Solution Approach 1:
The washing system is merged with the telescopic shaft structure itself, with nozzles and fluid delivery channels integrated into the existing telescopic elements. This combination eliminates the need for separate external washing equipment and complex access mechanisms, maintaining structural simplicity while enabling easy automated maintenance during normal operation.
Solution Approach 2:
The telescopic shaft structure serves its own maintenance needs through integrated washing nozzles that are part of the shaft assembly. The system uses its own operational movement to enable cleaning, eliminating the need for external maintenance equipment and complex access systems, thereby maintaining structural simplicity while greatly improving ease of maintenance.
4Manufacturing precision
If washing liquid is delivered at high pressure to effectively clean surfaces, then purity of telescopic element surfaces is improved, but loss of energy increases due to high pressure fluid delivery
Solution Approach 1:
The washing system delivers fluid in periodic pulses or cycles rather than continuous high-pressure flow. Cleaning occurs during specific phases of the telescopic shaft's operation when surfaces are most accessible, using brief high-pressure pulses to remove contaminants effectively. This periodic action maintains surface purity while significantly reducing overall energy consumption compared to continuous high-pressure delivery.
Solution Approach 2:
The system applies washing fluid only to the specific portions of telescopic elements that require cleaning, rather than uniformly treating entire surfaces. High-pressure delivery is concentrated on critical friction surfaces where contamination most affects performance, using partial action to achieve sufficient purity while minimizing the total energy required for fluid delivery across the entire system.
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 washing system effectively maintains the friction coefficient within a pre-established range, ensuring correct and efficient movement of the telescopic shaft by removing dirt and debris, thereby preventing damage and malfunction.
Implementation Method 1
nozzles (15) which are directed towards a central axis (3) of the telescopic shaft (2) for delivering jets of washing liquid under pressure against an outer surface of the telescopic elements (5, 6, 7) included in the telescopic shaft (2)
Implementation Method 2
a drain duct (18) through which to drain the washing liquid, wherein the drain duct (18) is positioned below the nozzles (15) along the central axis (3) to collect, by fall, the washing liquid dispensed by the nozzles (15)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A washing system (1) configured for washing an external surface of one or more telescopic elements that make up a telescopic shaft (2) to which the washing system (1) can be connected, in which such washing system (1) comprises nozzles (15) through which to deliver a washing liquid under pressure which, in turn, are directed towards a central axis (3) of the telescopic shaft (2) to uniformly deliver jets of washing liquid against a surface exterior of each of the one or more telescopic elements included in the telescopic shaft (2), during their movement between an extracted or retracted position.