Hydraulic Hose Guide Layout for Variable-Width Working Vehicles
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Solution Overview
Problem
Existing hydraulic hose piping structures for vehicles that can change width either risk damaging hoses due to bending or increase costs by lengthening hoses, and fail to restrict hose movement effectively without bending.
Innovation Solution
A hydraulic hose piping structure for a working vehicle that includes restriction members and guide portions to maintain hose length and restrict movement without bending, featuring a swivel joint, side frames, and lateral support frames to manage hose paths and prevent excessive lengthening or bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hydraulic hoses are allowed to move freely when vehicle width is contracted, then the hoses can accommodate width changes, but the hoses protrude from the lower traveling body and may be damaged by falling objects or obstacles
Solution Approach 1:
A guide portion is introduced as an intermediary component between the hydraulic hose and the restriction member. The guide portion receives and guides the hose, allowing it to move within controlled boundaries while preventing it from protruding outward. This mediator structure enables the hose to adapt to width changes without exposing it to damage risks from external objects.
2Reliability
If hydraulic hoses are bent and wrapped around the center joint to restrict movement, then the hoses are protected from damage, but the total length of the hoses increases leading to increased cost
Solution Approach 1:
The restriction member is designed to be movable rather than fixed, allowing it to dynamically adjust its position according to the vehicle width. When the vehicle width changes, the restriction member moves accordingly, providing just enough constraint to protect the hose without forcing it into unnecessary bends. This dynamic approach minimizes hose length requirements while maintaining protection.
3Adaptability or versatility
If restriction members are used to limit vehicle width, then the vehicle width is controlled, but the hydraulic hoses may still move excessively and bend
Solution Approach 1:
The guide portion serves as a mediator between the restriction member and the hydraulic hose. While the restriction member controls the vehicle width by limiting the movement of side frames, the guide portion simultaneously guides the hose along a controlled path, preventing it from bending excessively even when the vehicle width changes. This dual-function approach ensures both width control and hose shape protection.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A working vehicle 1 has an upper rotating body 9 and a lower traveling body 2. The lower traveling body 2 is provided with: a center frame 26 on which a swivel joint 25 is vertically mounted; a right side frame 27R on which a right traveling motor 22R is mounted; a left side frame 27L on which a left traveling motor 22L is mounted; at least one right restriction member 3R and at least one left restriction member 3L, which restrict the maximum width of the vehicle; a right hose guide section 5R having a right opening 51R into which a right hydraulic hose 251R is inserted, and provided to the right restriction member 3R; and a left hose guide section 3L having a left opening 51L into which a left hydraulic hose 251L is inserted, and provided to the left restriction member 3L.