Vehicle Cabin Mounting With Articulated Rods for Pendulum Control
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Solution Overview
Problem
Existing vehicle cabin mounting systems, particularly in agricultural and construction machines, face challenges in effectively isolating vibrations while preventing pendulum-like movements such as rolling and pitching, which are exacerbated by soft mounting and require complex solutions for reduction.
Innovation Solution
The implementation of articulated rods between the frame and cabin, supported by rubber bushings, which allow radial, axial, and rotational movements, and are designed to limit pendulum movements by acting as a stabilizer, using configurations like four-bar linkage chains and torsion bar springs to dampen and counteract forces, thereby reducing pendulum movements effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If soft mounting is used to achieve high vibration isolation, then vibration isolation is improved, but pendulum movements (rolling and pitching) increase
Solution Approach 1:
The patent introduces rods as intermediary elements between the cabin and frame. These rods act as stabilizing members that prevent pendulum movements while allowing the soft mounting to continue providing vibration isolation. The rods mediate between the conflicting requirements of soft mounting and cabin stability.
Solution Approach 2:
The mounting system combines different types of bearings (hydraulic, elastomeric, cone bearings) with rigid rods to create a composite mounting system. This composite structure allows simultaneous achievement of vibration isolation (through the bearing elements) and pendulum movement prevention (through the rigid rod structure).
2Stability of the object's composition
If anti-roll supports are added to prevent rolling movements, then rolling stability is improved, but device complexity increases
Solution Approach 1:
The rods serve multiple functions simultaneously: they act as structural support members, pendulum movement preventers, and tear-off safeguards. This multi-functionality eliminates the need for separate anti-roll supports, reducing overall system complexity while maintaining rolling stability.
Solution Approach 2:
The patent merges the stabilizing function with the existing mounting system by integrating rods into the bearing assembly. The rods are articulated to both the frame and cabin, combining structural support and stabilization functions in a unified, space-efficient configuration.
3Stability of the object's composition
If complex measures are taken to reduce pitching movements, then pitching stability is improved, but device complexity increases
Solution Approach 1:
The rods act as intermediary stabilizing members that directly counteract pitching movements. By articulating the rods between the frame and cabin at strategic points, the system achieves pitch control through simple mechanical leverage rather than complex active control systems.
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 solution provides effective vibration decoupling and reduces pendulum movements, ensuring a comfortable driving experience while simplifying installation and providing a compact, reliable support system that effectively limits pitching and rolling movements.
Implementation Method 1
The bars are articulated at both ends, the bars preferably being supported by rubber bushings on the frame and cab. The rubber bushings allow movements in the radial and axial directions as well as rotational movements, these movements being dampened by the rubber.
Implementation Method 2
Two rods can be operatively connected to one another via a torsion bar spring. The torsion bar spring acts like a stabilizer, which is known from the automotive industry to limit the vehicle inclination when cornering. When accelerating, the car exerts a compressive force on one bar and at the same time a tensile force on the other bar. This leads to a twisting of the torsion bar spring and thus to a counterforce that counteracts the compressive force and the tensile force.
Implementation Method 3
Four bearings 4 are provided for this purpose, which are designed here as hydraulic bearings.
Data Source
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AI summary
The vehicle (1) has a frame (2) and a cabin (3) connected with each other by a spring-loaded and/or damping bearing (4). A rod (5) is provided between the frame and the cabin and is arranged with the frame and the cabin in an articulated manner such that an oscillating movement of the cabin is reduced. The rod is assigned to the bearing and is connected with a section (6) of the bearing in an articulated manner, where the bearing is rigidly fastened to the frame or the cabin. A movable support of the bearing is connected with the rod.