Self-locking Rail Brake Converts Wind Force to Clamping
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Solution Overview
Problem
Existing anti-slip devices for port facilities, such as anchor-type, rail braking-type, and rail clamping-type, are insufficient in preventing facilities from sliding and capsizing due to strong winds, leading to safety accidents and economic losses during extreme weather conditions.
Innovation Solution
A self-locking anti-slip rail braking device comprising a ladder-shaped support, lifting unit, roller-and-wedge plate mechanism, and rail clamping unit, which utilizes wind force to create a tight clamp on the rail, with the roller-and-wedge plate mechanism and rail clamping unit amplifying wind force into a clamping force proportional to the wind strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rail braking-type anti-slip device is used to increase friction through dead weight, then anti-slip capability in strong wind is improved, but in extreme weather the wind force is far larger than the maximum friction that can be produced, making the device not safe enough
Solution Approach 1:
The invention converts the harmful wind force into a beneficial clamping force. When wind blows the port facility, the movement is transmitted through the support to the roller-and-wedge plate mechanism, which converts the horizontal wind force into vertical clamping force on the rail. This means the stronger the wind, the stronger the clamping force generated, solving the limitation of fixed friction force in traditional devices.
Solution Approach 2:
The invention makes the clamping force dynamic rather than static. The roller-and-wedge plate mechanism automatically adjusts the clamping force based on the wind load - when wind increases, the facility moves more, generating greater clamping force through the wedge mechanism. This dynamic response allows the device to provide sufficient anti-slip capability even in extreme weather conditions.
2Reliability
If rail clamping-type anti-slip device is used to clamp the head of the rail, then a large clamping force can be produced and the device is safe and reliable, but limited by the size of the port facility and the installation space, it can merely produce a finite clamping force
Solution Approach 1:
The invention transforms the port facility's movement under wind load from a harmful effect into a useful source of power. The wind-induced movement drives the roller-and-wedge plate mechanism to generate clamping force, meaning the facility's own movement under wind creates the counteracting clamping force, eliminating the need for external power sources or large installation space.
Solution Approach 2:
The device uses the port facility's own wind-induced movement to generate the clamping force needed to prevent slipping. The system is self-activating - when wind blows and the facility moves, the mechanism automatically engages and generates clamping force without requiring external control or additional energy input.
3Device complexity
If anchor-type anti-slip device is used to fix and limit a port facility, then the device is simple in structure and reliable, but when a strong wind comes, the port facility has to be moved to anchoring bolts, which is not convenient and it is not always possible to timely stop and anchor the facility
Solution Approach 1:
The device automatically activates itself when wind blows and the port facility moves. The roller-and-wedge plate mechanism engages automatically to generate clamping force, eliminating the need for manual operation or pre-positioning of anchors. The system responds autonomously to wind conditions, maintaining both simplicity and ease of operation.
Solution Approach 2:
The device is pre-positioned on the port facility and the rail, ready to activate immediately when wind blows. The support is connected to the facility and the clamping mechanism is positioned to engage with the rail, so when wind-induced movement occurs, the clamping action is immediately activated without requiring manual intervention or repositioning.
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 device provides a reliable and safe anti-slip capacity that is directly proportional to wind force, effectively preventing port facilities from sliding and capsizing by generating a strong clamping force, even in extreme weather conditions, ensuring operational safety and reducing economic losses.
Implementation Method 1
the roller-and-wedge plate mechanism and rail clamping unit amplifying wind force into a clamping force proportional to the wind strength
Implementation Method 2
A rail braking-type anti-slip device is used to enable part of the dead weight of the port facility to be loaded on the top of the rail by using an auxiliary device, thus providing an increased friction between the port facility and the top of the rail for resisting wind
Data Source
AI summary
A self-locking anti-slip rail braking device is provided. The rail braking device includes a ladder-shaped support, a lifting unit, a roller-and-wedge plate mechanism, a roller support, and a rail clamping unit. The ladder-shaped support is connected under a surface of a balance beam of a port facility, and is connected at a middle part thereof with the lifting unit. A lower end of the lifting unit is hinged to two sides of the roller support. The roller support is provided on an upper end surface thereof with the roller-and-wedge plate mechanism, and is provided at a middle part thereof with the rail clamping unit. An upper end of the rail clamping unit serves as a force application end and is configured to match the roller-and-wedge plate mechanism, and a lower end of the rail clamping unit serves as a rail clamping end corresponding to two lateral sides of a rail.