Crane Support Plate with Detachable Fastening Mechanism
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Solution Overview
Problem
The existing crane support plates for mobile crane vehicles are cumbersome and require significant effort to reposition, especially on heavy-duty applications or soft ground, due to their large size and weight, which complicates maneuvering and increases the risk of accidents during movement.
Innovation Solution
A crane support plate with a detachable fastening device that securely connects to the support foot via a screw connection, allowing the plate to be raised and lowered by the crane's support arm, reducing the need for manual handling and enabling easier repositioning of the crane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the crane support plate is made larger and heavier to improve force distribution on soft ground, then the load-bearing capacity and stability are improved, but the ease of maneuvering and repositioning deteriorates
Solution Approach 1:
The support system is divided into separate components: the crane support plate remains stationary on the ground, while the support leg with fastening device is movable and can be independently positioned. This segmentation allows the heavy plate to stay put for stability while the lighter leg component handles the maneuvering operation.
Solution Approach 2:
The fastening device acts as an intermediary mechanism between the support leg and the crane support plate. It enables reliable connection when needed while allowing easy detachment for repositioning, mediating between the conflicting requirements of stability and maneuverability.
2Reliability
If the crane support plate is made larger to distribute compressive forces over a larger ground area, then the prevention of ground subsidence is improved, but the effort required to relocate the plate deteriorates
Solution Approach 1:
The system separates the large stationary plate from the movable support leg. The plate remains in place to ensure reliability and prevent ground subsidence, while the support leg can be quickly repositioned without moving the heavy plate, significantly reducing relocation time.
Solution Approach 2:
The plate is pre-positioned and secured on the ground before the support leg is attached. This preliminary action ensures the plate is ready to bear loads immediately, while the support leg can be independently and quickly repositioned without disturbing the already-placed plate.
3Reliability
If a fixed connection between the support leg and crane support plate is used to ensure stability, then the reliability is improved, but the flexibility for repositioning deteriorates
Solution Approach 1:
The connection system transitions from a static fixed connection to a dynamic removable connection. The fastening device provides a reliable fixed connection when the support leg is in position, but can be easily detached when repositioning is needed, adapting the connection state to operational requirements.
Solution Approach 2:
The fastening device serves as an intermediary that provides reliable connection when needed but allows easy detachment for repositioning. It mediates between the conflicting requirements of stability and flexibility by enabling both states as needed.
Data Source
Figure 1
Figure 2~4
Figure 5~6
AI summary
Crane outrigger plate (1), which is essentially made of metal, with a fastening device (15, 19, 21, 23, 25, 27, 29, 31, 33, 35) for a support leg (9) on a support arm (7) of a mobile crane vehicle, wherein the fastening device (15, 19, 21, 23, 25, 27, 29, 31, 33, 35) can be detachably connected to the support leg (9), so that when maneuvering the mobile crane vehicle, the crane outrigger plate (1) raised by the support leg (9) hangs on the support arm (7) which cannot be fully retracted and/or swung in.