Working Machine Mount Member Rear Surface Vibration Suppression
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Solution Overview
Problem
Existing working machines face challenges in maintaining the layout and accessibility of parts around the rear engine area due to protruding mount members, require long mechanical linkages for control valves, and lack space for hydraulic fluid tanks and gas springs, leading to issues with mud deposition and complex assembly processes.
Innovation Solution
The design incorporates a compact mount member system that attaches to the engine's rear portion without requiring side space, positions control valves closer to pedals, and uses the transmission case's upper surface for hydraulic fluid tanks and gas springs, enhancing layout, maintenance, and reducing mud exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mount members are disposed on side surfaces of the engine rear portion, then the engine can be supported to suppress vibration, but the layout and maintenance of parts around the rear engine area becomes difficult
Solution Approach 1:
The mount member is repositioned from the side surface to the rear surface of the engine, changing the spatial dimension of attachment. This allows the elastic member to extend in the front-rear direction rather than the left-right direction, thereby suppressing engine vibration while clearing the side space for better part accessibility and maintenance
2Ease of operation
If control valves are disposed in rear of the operator seat, then hydraulic control is achieved, but long mechanical linkages are required increasing device complexity
Solution Approach 1:
The control valve is extracted from its traditional position at the rear of the operator seat and repositioned on the upper surface of the transmission case. This spatial relocation eliminates the need for long mechanical linkages between the pedals and control valve, reducing device complexity while maintaining hydraulic control functionality
3Volume of stationary object
If hydraulic operation fluid tank is placed on bottom portion of machine body, then space utilization is achieved, but mud deposition occurs on control valves
Solution Approach 1:
The control valve is relocated from the rear lower portion to the upper surface of the transmission case, changing its vertical position. This elevation removes the control valve from the mud-prone bottom area while the hydraulic fluid tank remains in the bottom portion for efficient space utilization, separating the two components in the vertical dimension
4Productivity
If transmission case is added to house motive power transmission device, then power transmission is achieved, but space for other components becomes limited
Solution Approach 1:
The transmission case is designed to serve multiple functions: it houses the motive power transmission device, provides a mounting surface for the control valve on its upper surface, and creates a compact integrated structure that reduces overall space requirements. This multi-functionality allows efficient power transmission while accommodating other components within limited space
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
This configuration improves the layout and maintenance of parts around the engine, simplifies the attachment of operation levers, prevents mud deposition on control valves, and efficiently uses space for hydraulic fluid tanks and gas springs, enhancing operational efficiency and ease of assembly.
Implementation Method 1
an elastic member attached to the first support member; the elastic member is formed of rubber
Data Source
AI summary
A working machine includes a travel device, a motive power transmission device configured to transmit a motive power to the travel device, a transmission case configured to house the motive power transmission device, and a hydraulic operation fluid tank disposed on an upper surface of the transmission case.