Flexible Hose Routing Structure for Hydraulic Vibration Isolation
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Solution Overview
Problem
Existing hose-guiding structures in working machines fail to effectively absorb pulsation-induced vibrations and noise in hydraulic hoses, leading to transmission of vibrations and noise through partitions.
Innovation Solution
A hose-guiding structure comprising a grommet, hose cover, and pressing plate that allows hydraulic hoses to move in response to pulsations, with a flexible corrugated tubular shape and attachment to a partition, along with a contact preventing body to prevent hose contact, thereby suppressing vibrations and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the hydraulic hose is fixed with a clamp to the partition, then the hose is restrained from moving, but pulsation-induced vibrations and noise cannot be absorbed and are transmitted
Solution Approach 1:
The hose cover acts as an intermediary component between the clamp and the hydraulic hose. It provides a flexible interface that allows the hose to move in response to pulsations while maintaining positional restraint, thereby absorbing vibrations and noise without compromising hose stability
Solution Approach 2:
The hose cover is made of flexible material that can deform to accommodate hose movements caused by pulsations. This flexibility allows the hose to move freely within the cover while the cover itself absorbs the vibrational energy, preventing noise transmission through the rigid clamp-partition assembly
2Object-affected harmful factors
If the hose is allowed to move freely to absorb pulsations, then vibrations and noise are suppressed, but the hose may come into contact with other hoses or components
Solution Approach 1:
The hose cover provides a nested protective enclosure for the hydraulic hose. Within this cover, the hose can move freely to absorb pulsations, while the cover itself acts as a barrier preventing contact with other hoses or components, thus maintaining system reliability
Solution Approach 2:
The hose cover serves as a mediator between the hose and the surrounding environment. It allows the hose to move for vibration absorption while simultaneously preventing harmful contacts with other components, resolving the contradiction between mobility and safety
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 structure effectively absorbs pulsation-induced vibrations and noise, ensuring separation of hydraulic pump and control valve sections while allowing hoses to move freely, reducing noise and vibration transmission.
Implementation Method 1
the hose cover is flexible between the first-end attachment portion and the second-end attachment portion
Implementation Method 2
vibrations and noise caused by pulsations in the hydraulic hose are transmitted
Data Source
AI summary
A hose-guiding structure includes at least one hose, a partition including an opening to allow the hose to extend therethrough, a grommet spaced from the partition to allow the hose to extend therethrough, and a hose cover having a tubular shape to cover a periphery of the hose and extending from the grommet to the partition. The hose cover includes a first-end attachment portion at one of opposite ends in a direction of a tube axis of the hose cover, the first-end attachment portion being attached to a peripheral edge portion around the opening in the partition, and a second-end attachment portion at the other of opposite ends opposite the first-end attachment portion, the second-end attachment portion being attached to the grommet such that the grommet blocks an opening portion of the second-end attachment portion. The hose cover is flexible between the first-end attachment portion and the second-end attachment portion.