Hose Guide for Swing Cylinder on Rotary Working Vehicle
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Solution Overview
Problem
Existing rotary working vehicles with a swing function face difficulties in allowing hydraulic hoses connected to the swing cylinder to follow the cylinder's rotation, as the hose insertion holes in the grommet are not designed to accommodate this movement, leading to issues with hose alignment and stability.
Innovation Solution
The implementation of a hose guide with a recessed cutout portion and a closure member on a protrusion piece adjacent to the swing cylinder, allowing hydraulic hoses to be consolidated and securely positioned near the swing cylinder, enabling them to follow the cylinder's telescopic movement without the need for additional reinforcement in the vertical plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hose insertion hole is formed in a grommet to connect a hydraulic hose to a swing cylinder, then the hydraulic hose can be connected to the swing cylinder, but the hose cannot follow the swing motion of the cylinder due to the fixed hole position
Solution Approach 1:
The patent applies the dynamics principle by making the hose guide movable relative to the vertical plate through a sliding mechanism. The hose guide can move along the vertical plate in the front-back direction, allowing it to dynamically adjust its position to follow the swing motion of the swing cylinder. This dynamic adjustment ensures the hydraulic hose remains properly aligned and connected throughout the swing operation, resolving the contradiction between hose connection capability and alignment stability.
2Reliability
If the hose guide is made movable to follow swing motion, then the hose can follow the swing motion, but additional reinforcement structures are required in the vertical plate
Solution Approach 1:
The patent employs a sliding mechanism where the hose guide moves along a guide groove formed in the vertical plate. This sliding arrangement allows the hose guide to follow the swing motion without requiring complex reinforcement structures. The guide groove provides the necessary guidance and support, enabling smooth movement while maintaining structural integrity without additional reinforcement.
3Device complexity
If the hose guide is positioned far from the swing cylinder for structural stability, then the vertical plate structure remains simple, but the hose cannot effectively follow the swing motion
Solution Approach 1:
The hose guide is positioned adjacent to the swing cylinder and equipped with a sliding mechanism that allows it to move along the vertical plate. This dynamic positioning enables the hose guide to closely follow the swing motion of the cylinder while maintaining a simple vertical plate structure. The sliding mechanism provides the necessary adaptability without requiring complex structural changes or additional reinforcement.
Data Source
AI summary
A rotary working vehicle includes a lower traveling body, an upper rotating body, a rotating frame constituting the bottom of the upper rotating body, a boom bracket supported by the rotating frame so as to be capable pivoting horizontally, a first vertical plate and a second vertical plate, which are raised from the bottom plate of the rotating frame, a swing cylinder provided on the opposite side of the second vertical plate from the first vertical plate and connecting the rotating frame and the boom bracket, a protrusion piece protruding toward the swing cylinder from a side wall of the second vertical plate above the swing cylinder, a hose guide provided to the protrusion piece, and first and second hydraulic hoses which pass above the first vertical plate and the second vertical plate, extend downward from above through the hose guide, and reach the swing cylinder.