Roll Stand Base Locking Mechanism for Uneven Ground Stability
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Solution Overview
Problem
Existing roll stands used in moving machines face challenges in securely locking the base to an operating position to prevent pins from overturning on uneven ground and in easily transitioning to an inclined service position for roll replacement, with complex and difficult-to-use latch mechanisms.
Innovation Solution
A roll stand with a rotatable base and locking means comprising a movable lock element that contacts different support surfaces at two distinct locations, allowing for easy locking and unlocking to secure the base in either a vertical or inclined position, facilitating secure operation and efficient roll replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a latch mechanism is used to lock the base to the operating position, then the base can be secured to prevent overturning on uneven ground, but the locking mechanism becomes complex and difficult to use
Solution Approach 1:
The patent extracts the locking function from a complex latch mechanism and implements it through a simple lock element that engages with a groove feature on the base. This groove-lock element combination provides reliable positioning without requiring complex mechanical components, directly resolving the contradiction between reliability and device complexity
Solution Approach 2:
The lock element is designed to be movable along the groove and can be easily positioned by the user to engage with the groove feature. The system uses the groove geometry itself to provide the locking action, eliminating the need for additional complex locking components and making the operation simpler while maintaining reliability
2Reliability
If the base is locked rigidly to prevent rotation, then the pins remain secure during operation, but the base cannot be tilted to an inclined position for easy roll replacement
Solution Approach 1:
The patent implements a dynamic locking system where the lock element can be moved along the groove to different positions. When locked, the base is secured for reliable operation; when unlocked, the base can be freely tilted to an inclined position for easy roll replacement. This dynamic capability resolves the contradiction between pin security and ease of operation
Solution Approach 2:
The system changes the rotational parameter of the base dynamically - locked in a fixed position for operation security, and freely rotatable to an inclined angle for maintenance. The lock element's position along the groove controls this parameter change, allowing the base to transition between secured and flexible states as needed
3Reliability
If the lock element is positioned to prevent rotation from operating position, then the base remains secure, but the lock element must be moved to allow rotation to service position
Solution Approach 1:
The patent replaces a complex mechanical latch system with a simpler groove-lock element mechanism. The lock element moves along a pre-formed groove and engages with a groove feature, eliminating the need for complex linkages or multiple components. This substitution reduces the time and complexity of locking operations while maintaining reliability
Data Source
Figure 1a~1b
Figure 1c~2a
Figure 2b
AI summary
The roll stand has a support element (10) for supporting and/or attaching to the structure and a base (20) attached rotatably to the support element with a mounting shaft (30). The base has at least one roll support (32) and the base is fitted to rotate about the mounting shaft to an operating position, in which the roll support/roll supports are at a first angle in relation to the support element, and to a service position, in which the roll support/roll supports are at a second angle in relation to the support element. The first angle and the second angle are unequal. The roll stand has locking means for preventing the base from rotating. The locking means comprise a first support surface and a movable lock element (38). The lock element is movable to a first location, in which the lock element is in contact with the first support surface when the base is in the operating position, and to a second location, in which the lock element is at a distance from the first support surface when the base is in the operating position. The second location is at a distance from the first location. When the lock element is in the first position, the lock element prevents the base from rotating about the mounting shaft from the operating position in the first direction of rotation. Respectively, when the lock element is in the second location, it does not prevent the base from rotating about the mounting shaft.