Clutch Housing Greasing Jig for No-Disassembly Lubrication Access
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Solution Overview
Problem
Current greasing maintenance methods for clutch release mechanisms require detaching and reattaching the clutch housing, which is inefficient and prone to damage from foreign objects like sand and muddy water, especially in environments where such conditions are present.
Innovation Solution
A greasing device and method that utilize a jig and greasing pipe system, allowing grease to be fed to the contact portion between the clutch release fork and release bearing without removing the clutch housing, using a first jig mounted in the clutch housing and a second jig with a greasing pipe that is inserted up to a marking-off line to position the pipe correctly, ensuring it does not contact inner components and can circumvent obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If greasing maintenance is performed by detaching and reattaching the clutch housing, then grease can be applied to the contact portion, but work efficiency deteriorates and the housing is exposed to foreign objects
Solution Approach 1:
The greasing device is divided into multiple components: a housing insertion part that fits into the clutch housing, a greasing pipe that can be inserted through the housing, and a positioning mechanism with marking-off lines. This segmentation allows the greasing operation to be performed without removing the entire clutch housing, thus protecting it from foreign objects while maintaining work efficiency
Solution Approach 2:
The greasing device acts as an intermediary tool that bridges the external grease supply and the internal contact portion. By inserting the greasing pipe through the housing's through-hole and positioning it using the marking-off line, the device enables grease delivery without requiring housing disassembly, thus resolving the contradiction between protection and efficiency
2Ease of operation
If the clutch housing is removed for greasing maintenance, then access to the contact portion is improved, but the risk of damage from foreign objects increases
Solution Approach 1:
The housing is designed with a through-hole and the greasing device includes positioning features (marking-off lines) that prepare the path for grease delivery in advance. This preliminary configuration allows the greasing pipe to be accurately positioned and grease to be delivered without removing the housing, thus maintaining ease of operation while preventing foreign object damage
Solution Approach 2:
The greasing device serves as an intermediary that provides the necessary access to the contact portion through the housing's existing through-hole. The positioning mechanism ensures accurate grease delivery without requiring housing removal, thus resolving the contradiction between ease of operation and protection from harmful factors
3Manufacturing precision
If a positioning mechanism with marking-off line is used, then the greasing pipe is positioned accurately without contacting inner components, but the device complexity increases
Solution Approach 1:
The positioning function is localized to specific features: a marking-off line on the housing and a corresponding position on the greasing pipe. This localized quality approach provides accurate positioning without requiring complex positioning mechanisms throughout the entire device, thus resolving the contradiction between manufacturing precision and device complexity
Solution Approach 2:
The positioning is achieved by changing the positional parameter of the greasing pipe relative to the housing using the marking-off line as a reference. This simple parameter change approach provides accurate positioning without adding complex mechanisms, thus resolving the contradiction between positioning accuracy and structural simplicity
Data Source
AI summary
A greasing device that feeds grease to a portion requiring greasing that is housed inside a housing, and includes a jig and a greasing pipe fixed to the jig. The housing includes a though-hole that extends through the housing. The jig includes an insertion part that is inserted into the through-hole of the housing. A side surface of the insertion part bear a marking-off line at a position a predetermined distance away from a leading end side of the insertion part. A position of the marking-off line is a height position that the greasing pipe does not come into contact with inner components of the housing when the jig is inserted into the through-hole up to the position of the marking-off line.