Front Loader Control Valve Mounting on Attachment Frame
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Solution Overview
Problem
The control valve in existing front loaders is susceptible to damage from earth, sand, and weather conditions such as rain and snow, which can affect its functionality.
Innovation Solution
A front loader design where the second control valve is attached to an attachment frame on the side portion of the vehicle body, extending backward from a supporting member, which prevents earth, sand, rainwater, and snow from reaching the control valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the control valve is attached to the coupling pipe at the front portion of the front loader, then the control valve is easily accessible and simple to install, but the control valve is exposed to earth, sand, rainwater, and snow which can affect its functionality
Solution Approach 1:
The control valve is extracted from its vulnerable position on the coupling pipe at the front portion and relocated to the attachment frame, which is positioned away from direct exposure to earth, sand, rainwater, and snow. This extraction removes the control valve from the harmful environment while maintaining its functional connection to the hydraulic system.
Solution Approach 2:
The attachment frame serves as an intermediary structure that carries the control valve away from the front portion of the front loader. By using the attachment frame as a mediator, the control valve is positioned in a protected location while still maintaining its hydraulic connections and operational functionality.
2Device complexity
If the control valve is attached to the coupling pipe at the front portion, then the structure remains simple and compact, but the control valve is vulnerable to damage from falling earth, sand, and weather conditions
Solution Approach 1:
The control valve is extracted from the front portion structure and relocated to the attachment frame. This extraction reduces the harmful factors affecting the control valve by removing it from the exposure zone of falling earth, sand, and weather elements, while adding only minimal structural complexity through the attachment frame integration.
3Device complexity
If the control valve is positioned at the front portion of the front loader, then hydraulic hose routing is simplified, but the control valve is directly exposed to harmful environmental factors during operation
Solution Approach 1:
The attachment frame acts as an intermediary carrier for the control valve, allowing the valve to be positioned in a protected location while maintaining reasonable hydraulic hose routing. The attachment frame mediates between the need for protection and the need for simple hose connections by providing a strategic mounting position.
Data Source
AI summary
A front loader includes a boom to which a bucket or a working implement other than the bucket is attached, a boom cylinder to move the boom, a first control valve to supply an operation fluid to the boom cylinder, a supporting member supporting the boom on a front portion of a vehicle body of a work machine, an attachment frame extending backward from the supporting member. The attachment frame is attached to a side portion of the vehicle body. The front loader further includes a second control valve to supply the operation fluid to the working implement. The second control valve is attached to the attachment frame.