Mobile Lifting Platform Roller Adjustment Mechanism
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Solution Overview
Problem
Existing mobile lifting platforms lack the ability to move laterally, which is desirable in limited spaces such as railway and commercial vehicle workshops, due to their design that restricts lateral displacement.
Innovation Solution
A mobile lifting platform with a roller adjustment device that allows rollers to be adjusted vertically and rotated 90°, enabling lateral movement by decoupling the actuating device from the roller adjustment mechanism, allowing exclusive vertical lifting and enabling rollers to always be perpendicular to the ground, regardless of travel direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the roller is mechanically coupled to the actuating device for extension, then the roller can be extended from load-bearing to travel position, but the roller cannot be adjusted laterally and is restricted to longitudinal movement only
Solution Approach 1:
The mechanical coupling is divided into two independent segments: one for vertical extension movement and another for lateral rotation adjustment. This segmentation allows the roller to perform both longitudinal extension and lateral rotation without requiring a complex integrated coupling mechanism, thereby resolving the contradiction between movement versatility and device complexity.
Solution Approach 2:
The roller's orientation is made dynamically adjustable during operation. The roller can be rotated laterally to different angles while maintaining its extension capability, transforming the static mechanical coupling into a dynamic system that adapts to different movement directions, thus improving adaptability without proportionally increasing complexity.
2Adaptability or versatility
If the roller adjustment device is integrated with the actuating device, then the structure is compact, but lateral movement capability is lost
Solution Approach 1:
The roller adjustment device is designed with multi-functionality, serving both vertical extension and lateral rotation functions. This universal design allows a single adjustment device structure to provide lateral movement capability while maintaining compact integration, resolving the contradiction between adaptability and structural complexity.
Solution Approach 2:
The adjustment mechanism uses a nested structure where the roller can rotate laterally within the adjustment device housing. This nesting approach allows lateral adjustment functionality to be incorporated without significantly increasing the external dimensions or overall structural complexity, enabling lateral movement while keeping the device compact.
3Adaptability or versatility
If the roller is fixed in orientation, then the structure is simple, but the platform cannot move laterally in confined spaces
Solution Approach 1:
The roller orientation is adjusted in advance before the platform needs to move laterally. By pre-positioning the rollers at the appropriate angles, the platform is prepared for lateral movement without requiring complex real-time adjustment mechanisms during operation, thus improving maneuverability while keeping the adjustment mechanism relatively simple.
Solution Approach 2:
The roller adjustment mechanism is designed to be self-aligning and self-locking at specific angular positions. This self-service capability allows the rollers to automatically assume the correct orientation for lateral movement without requiring complex external control systems, enhancing maneuverability while minimizing the complexity of the adjustment mechanism.
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
Enables lateral movement of the lifting platform, improving maneuverability in confined spaces and allowing larger wheel diameters for reduced rolling resistance, while maintaining structural simplicity and securing the roller position.
Implementation Method 1
The adjusting device preferably comprises a linkage with a pivoting lever mounted on the base frame, which is mechanically decoupled from the roller adjusting device, and a vertical lifting movement of the roller adjusting device can be controlled by a pivoting movement of the pivoting lever. As a result, due to the pivoting movement, a large lever force can be exerted on the roller adjustment device in a simple manner
Implementation Method 2
The guide element has at least two guide surfaces, preferably opposite one another, by means of which the guide element is arranged in the guide shaft in a manner secured against rotation. The roller mount is rotatably guided in the guide element about a vertical axis
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a mobile lifting platform for raising and lowering loads, vehicles, or the like, comprising a base frame (12), a lifting device (14) arranged thereon, by which a load-bearing platform (18) provided thereon can be moved up and down, a chassis (28) arranged on the base frame (12), which includes at least two casters (31), and an actuating device (33), which includes at least one controllable steering caster (43), as well as an adjustment device (34) by which the chassis (28) can be moved from a load-bearing position (36) retracted relative to the base frame (12) to a travel position (37) extended relative to the base frame (12), wherein each caster (31) is received by a caster adjustment device (30) arranged on the base frame (12).by which the roller (31) is adjustable in the direction of travel and the roller (31) of the roller adjustment device (30) can be extended from the load-bearing position (36) to the travel position (37) only in a vertical direction relative to the base body (12), independent of any drive direction of the adjustment device (34) acting on the roller adjustment device (30).