Work Machine Cab Tilt Mechanism for Transport Height Clearance
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Solution Overview
Problem
Work machines with high cab positions for operator visibility pose transportation challenges due to height restrictions on highways, and existing manual tilting mechanisms are difficult for single operators to manage without special tools.
Innovation Solution
A work machine equipped with a hydraulic and/or electrically assisted tilting mechanism that allows a single operator to easily tilt and lock the cab between upright and recumbent positions, enabling safe transportation and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the cab is positioned high for operator visibility, then visibility is improved, but transportation becomes difficult due to height restrictions
Solution Approach 1:
The cab is designed to be dynamically repositionable between a high operating position for visibility and a low transportation position for road clearance. The tilt mechanism allows the cab to rotate relative to the chassis, transforming from a static high-position structure to a dynamic system that adapts its height based on operational mode.
Solution Approach 2:
The cab's vertical position parameter is changed from fixed to variable. By implementing a tilt mechanism with adjustable angles, the system can modify the cab's height parameter between two extreme positions: high for operation and low for transportation, thus resolving the contradiction between visibility and transportability.
2Adaptability or versatility
If a manual tilting structure is used, then the cab can be tilted for transport, but operation becomes difficult and time-consuming requiring special tools
Solution Approach 1:
The manual mechanical tilting system is replaced with a hydraulic actuation system. The hydraulic cylinder provides automated force to tilt the cab, eliminating the need for manual manipulation of complex mechanical linkages and special tools, thus dramatically improving ease of operation.
Solution Approach 2:
A hydraulic actuator is introduced to provide the necessary force for tilting the cab. The hydraulic system uses fluid pressure to move the cab between positions, replacing manual mechanical operations with automated hydraulic actuation that is easier to control and requires no special tools.
3Reliability
If a manual locking structure is used, then the cab can be locked in position, but operation becomes difficult and time-consuming requiring special tools
Solution Approach 1:
The manual locking mechanism is replaced with a hydraulic locking system. The hydraulic actuator automatically engages and disengages locking elements through fluid pressure, eliminating the need for manual tool operation while maintaining secure positioning of the cab.
Solution Approach 2:
The locking system is designed to automatically engage and disengage based on the cab's position. As the hydraulic actuator moves the cab into the desired position, the locking mechanism self-activates to secure it, reducing the need for separate manual locking operations and special tools.
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 assisted tilting mechanism allows for safe and efficient transportation by lowering the cab for height clearance and easy movement on standard roads, while ensuring the cab can be quickly raised for operation, all manageable by a single operator without special tools.
Implementation Method 1
The tilt mechanism includes an actuator arranged to move the cab relative to the chassis
Data Source
AI summary
A work machine includes a ground propulsion apparatus, a undercarriage frame supported by the ground propulsion apparatus, a machine body supported by the undercarriage frame, a work implement attached to at least one of the undercarriage frame and the machine body, and a tilt mechanism. The machine body includes a chassis coupled to the undercarriage frame and a cab supported on the chassis. The tilt mechanism is arranged to tilt the cab relative to the chassis between an upright position and a recumbent position. The tilt mechanism includes an actuator arranged to move the cab relative to the chassis, and a lock arranged to selectively lock the cab in the upright position relative to the chassis.