Resilient Worm Gear Anti-Skid Actuator
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Solution Overview
Problem
Existing vehicle anti-skid devices are space-consuming, limit ground clearance, and are prone to damage from external impacts due to their design, particularly in smaller trucks without pneumatic or hydraulic systems, and wire-operated devices face issues with corrosion and mounting problems.
Innovation Solution
A compact operating device using a worm gear and a resiliently displaceable driven worm, powered by an electric motor, which allows the operating arm to engage and disengage the anti-skid device efficiently, providing a self-locking mechanism that absorbs impacts and prevents damage by translating the worm along its axis instead of rotating it, thus ensuring reliable operation and reduced space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wire is used to operate the anti-skid device, then the device can be operated remotely, but the wire acts as a spring causing corrosion and mounting problems
Solution Approach 1:
The patent replaces the wire-based mechanical system with an electric motor-driven system. The operating device includes a motor that directly drives the operating arm through a gear mechanism, eliminating the wire that previously served as both the actuation medium and a spring element. This substitution resolves the corrosion and mounting issues while maintaining remote operation capability.
2Stability of the object's composition
If damping springs are added to prevent unintentional movements, then the operating arm stability is improved, but the device becomes space-consuming and limits ground clearance
Solution Approach 1:
The patent combines the damping function with the existing structural components rather than adding separate damping springs. The operating arm itself and its connection to the vehicle structure are designed to provide the necessary damping through their inherent flexibility and mounting arrangements, integrating the stabilization function into the compact existing structure.
Solution Approach 2:
The patent modifies the physical parameters of existing components to achieve damping effects. By adjusting the flexibility, material properties, or geometric parameters of the operating arm and its connections, the system achieves the required stability without adding bulky spring components.
3Stability of the object's composition
If the worm is made resiliently displaceable along its axis, then the mechanism becomes free from play and rattle, but the worm requires force to be moved
Solution Approach 1:
The patent makes the worm dynamically resilient rather than statically fixed. The worm is designed to be resiliently displaceable along its axis, allowing it to adapt to load variations and eliminate play and rattle during operation. This dynamic characteristic enables the worm to maintain optimal engagement with the worm gear while accommodating operational forces.
Solution Approach 2:
The resilient nature of the worm provides beforehand cushioning for load variations and external impacts. By being pre-designed to resiliently displace, the worm can absorb and accommodate forces before they cause misalignment or damage, ensuring smooth operation and eliminating play and rattle.
4Volume of moving object
If the worm length is limited to prevent disengagement, then the mechanism remains compact, but the ability to accommodate large movements is reduced
Solution Approach 1:
The patent uses the dynamic resilience of the worm to compensate for its limited length. The worm's ability to resiliently displace along its axis allows it to accommodate the necessary movements for full operating arm rotation without requiring excessive length, maintaining compactness while achieving full range of motion.
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 solution provides a reliable, space-saving anti-skid mechanism that effectively engages and disengages the anti-skid device, absorbs external impacts, and prevents damage, ensuring quick reaction to external forces while maintaining system integrity and reducing wear and rattling.
Implementation Method 1
the driven worm is resiliently displaceable along an axis of said worm
Implementation Method 2
absorbs impacts and prevents damage by translating the worm along its axis
Implementation Method 3
providing a self-locking mechanism that absorbs impacts and prevents damage
Data Source
AI summary
The invention discloses an anti-skid mechanism operating device (1) for vehicles comprising an operating unit (2) and an operating arm (3) pivotally supported thereby and intended to carry a rotary anti-skid device (4) and to operate the latter between an active and a passive position. The operating device (2) comprises a worm gear (6) and a driven worm (5) adapted to engage said worm gear (6) for operation of the operating arm (3). The driven worm (5) is resiliently displaceable along an axis (A) of said worm (5).