Piping Frame Reinforcing Member for Hydraulic Pipeline Protection
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Solution Overview
Problem
In hydraulic excavators, pipelines connecting front and back hydraulic devices are prone to damage from upward forces and require additional protective measures, which increase costs and reduce the strength of the side deck due to the need for holes and decorative covers.
Innovation Solution
A reinforcing member in the form of a piping frame is mounted on the side decks to accommodate the pipeline, providing structural reinforcement and protection from upward forces and sideways shocks, eliminating the need for special-purpose ducts or protective covers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the pipeline is passed below the side deck, then the pipeline is protected from some damage, but the pipeline is directly pushed by upward force from below and tends to be damaged or break
Solution Approach 1:
A reinforcing member is introduced as an intermediary structure between the pipeline and the upward pushing force from below. This reinforcing member has a through-hole that allows the pipeline to pass through while the member itself absorbs and distributes the upward force, preventing direct transmission to the pipeline and eliminating the need for separate protective covers.
Solution Approach 2:
The reinforcing member serves multiple functions simultaneously: it provides structural reinforcement to the side deck, creates a protective enclosure space for the pipeline, and acts as a mediator to absorb upward pushing forces. This multi-functionality eliminates the need for separate protective covers and reduces overall system complexity.
2Ease of operation
If the pipeline is passed through holes in the side deck, then the pipeline can be routed, but the strength of the deck is reduced by the holes
Solution Approach 1:
The reinforcing member acts as an intermediary that carries the pipeline through the side deck without requiring direct holes in the deck structure itself. The member can be attached to the deck surface and provides its own through-hole for pipeline passage, thus preserving the structural integrity of the side deck while enabling pipeline routing.
3Object-affected harmful factors
If a protective cover is used to cover the pipeline, then the pipeline is protected, but the protective cover itself may be damaged by upward pushing force and costs are increased
Solution Approach 1:
The reinforcing member is designed to simultaneously provide structural reinforcement and pipeline protection functions. By integrating the protective function into the reinforcing member itself, there is no need for separate protective covers that could be damaged, thereby improving reliability and reducing costs.
Solution Approach 2:
The protective function is merged with the reinforcing member structure. The reinforcing member's through-hole and its attachment to the side deck create an integrated protective system that eliminates the need for separate protective covers, reducing the number of components and potential failure points.
4Ease of manufacture
If the pipeline is covered with a decorative cover, then the pipeline is covered, but the decorative cover has low strength/rigidity and the pipeline is not sufficiently protected
Solution Approach 1:
The reinforcing member provides both structural strength and pipeline accommodation in a single component. Its rigid structure with integrated through-hole eliminates the need for separate decorative covers, providing sufficient protection while maintaining manufacturing simplicity.
5Ease of operation
If the pipeline is secured to the inner surface of the decorative cover, then the pipeline is fixed, but the pipework becomes troublesome
Solution Approach 1:
The reinforcing member with its through-hole serves as an intermediary that naturally guides and positions the pipeline. The pipeline simply passes through the hole and can be secured with basic fastening, eliminating the need for complex securing operations to inner surfaces of decorative covers.
Data Source
AI summary
A working machine includes a pipeline disposed along a side deck in a front-back direction and connecting a hydraulic pump and a control valve. The hydraulic pump is mounted at a back portion of an upper frame of an upper rotating body and the control valve is mounted at a front portion of the upper frame. In the working machine, a reinforcing member having a space for accommodating the pipeline is mounted in the front-back direction of the side deck to an outermost side of the side deck in a widthwise direction thereof. The pipeline is passed through the reinforcing member.