Barrier Boom Balance Mechanism Without Counterweights
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Solution Overview
Problem
Conventional level crossing barrier systems rely on bulky counterweights, which occupy significant space and pose risks to passers-by and technicians, especially in adverse weather conditions.
Innovation Solution
The barrier mechanism employs a set of mechanical elements, including steel cams, chains, forks, and compression springs, to achieve static and dynamic balance of the boom, eliminating the need for counterweights and reducing the working space required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bulky counterweights are used to balance the boom, then the balance system is reliable and well-established, but the working space occupied increases and safety risks to passers-by and technicians arise
Solution Approach 1:
The patent extracts and removes the counterweight component from the barrier system entirely. Instead of using traditional counterweights to balance the boom, the invention employs a spring-based balancing mechanism that eliminates the need for heavy counterweight structures, thereby reducing the working space occupied while maintaining balance functionality
Solution Approach 2:
The patent replaces the mechanical counterweight system with a spring-based mechanical system. The spring mechanism provides the necessary balancing force through elastic deformation rather than gravitational force from counterweights, fundamentally changing the mechanical approach to achieving boom balance
2Reliability
If conventional bulky counterweights are used to balance the boom, then the balance function is achieved, but safety risks to passers-by and technicians increase
Solution Approach 1:
By removing the counterweight component entirely and replacing it with a compact spring mechanism, the patent eliminates the safety hazards associated with heavy moving masses near the barrier boom, thereby protecting passers-by and technicians while maintaining the essential balance function
Solution Approach 2:
The patent changes the fundamental parameter of the balancing system from using large mass (counterweights) to using elastic force (springs). This parameter change reduces the moving mass in the system, thereby minimizing safety risks while preserving the balance function through alternative physical principles
3Force
If counterweight size is increased to handle longer booms, then the balance capability improves, but space occupancy and safety risks increase
Solution Approach 1:
The patent substitutes the gravitational force mechanism of counterweights with the elastic force mechanism of springs. This allows the balance capability to be adjusted by changing spring parameters (stiffness, pre-compression) rather than increasing mass, enabling longer booms to be balanced without increasing space occupancy
Solution Approach 2:
The patent employs parameter changes in the spring system (such as spring constant, number of springs, pre-compression force) to achieve the necessary balance capability for longer booms, avoiding the need to increase the physical size of balancing components and thereby reducing space occupancy
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
This solution provides stable and reliable operation of the boom, reducing the risk of material damage and physical harm to individuals, while also minimizing space occupancy and enhancing performance in adverse weather.
Implementation Method 1
a set of compression springs which, when compressed have the function of compensating the moment of force caused by the boom on the main shaft
Implementation Method 2
a set of compression springs which, when compressed have the function of compensating the moment of force
Data Source
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AI summary
The present application describes a barrier mechanism for level crossing control systems. This new mechanism presents a set of differentiated requirements and solutions, whereby the main distinctive characteristic is the boom balance system which does not use the conventional counterweights, resulting in a reduction in the operational space of the barrier, avoiding possible accidents with workers and passers-by, minimizing as well the material damages. To achieve the indicated objective, guaranteeing the balance and stability in the movement of the boom a set of compression springs is used which exert more, or less, force on the main shaft according to the position in which the boom is found. Another important characteristic of the barrier lies in the mechanics and the transmission systems used, which present high levels of reliability.