Linear Motor Chain Barrier Actuation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional chain barriers with electric motors experience premature wear and overheating due to limited torque and slow movement, especially with long chain lengths and intensive use, leading to operational failures and maintenance issues.
Innovation Solution
The implementation of linear motor means coupled to a carriage moving along a rail, with a flexible transmission system that multiplies the stroke, allowing for a hydraulic jack to act as the linear motor, which can handle long chains and high usage without overheating, and is housed within traditional drum dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric motors are used in chain barriers with long chain lengths (10-35m), then the barrier can be integrated into conventional drum dimensions, but the motors experience premature wear and overheating due to limited torque
Solution Approach 1:
The patent replaces the conventional electric motor with a linear motor system that converts electrical energy directly into linear motion, eliminating the need for mechanical transmission components like gears and belts. This substitution resolves the torque limitation by providing direct linear force application to the chain, preventing premature wear and overheating while maintaining compatibility with conventional drum dimensions.
Solution Approach 2:
The patent employs a linear motor that operates on principles similar to pneumatic and hydraulic systems, using electromagnetic fields to generate linear motion directly. This approach provides high force output without the mechanical transmission losses that cause overheating in conventional electric motors, thereby improving reliability for long chain lengths.
2Speed
If electric motors are used in chain barriers, then the system can be compact, but the movement speed is slow
Solution Approach 1:
By replacing the conventional electric motor with a linear motor, the system eliminates complex mechanical transmission mechanisms. This substitution enables faster chain movement speeds while actually reducing device complexity, as the linear motor provides direct motion without requiring gears, belts, or other intermediate components.
3Length of moving object
If the stroke of linear motor means is multiplied through flexible transmission, then the carriage can travel the full height of the drum, but the linear motor stroke is limited
Solution Approach 1:
The patent introduces a flexible transmission mechanism as an intermediary between the linear motor and the carriage. This intermediary component multiplies the limited stroke of the linear motor to achieve the full height travel of the carriage, while keeping the overall system compact and compatible with conventional drum dimensions.
Solution Approach 2:
The flexible transmission system utilizes spatial arrangement and dimensional optimization to multiply the linear motor stroke. By configuring the transmission path through the drum volume efficiently, the system achieves full carriage travel without increasing the linear motor's physical stroke length.
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 enables intensive use of chain barriers with reduced travel time between positions, prevents operational failures, and maintains the barrels within conventional dimensions, ensuring continuous functionality and safety.
Implementation Method 1
the carriage is coupled to drive means comprising linear motor means capable of extending/retracting over a stroke D1 from bottom to top, or vice versa, in the barrel
Implementation Method 2
the linear motor means being able to act on the transmission means between the ends so that the stroke D1 of the linear motor means causes a stroke D2 of the carriage along said rail such that D2 > D1
Data Source
Figure 1~2
AI summary
The invention relates to a chain barrier comprising two end shafts (1) between which a main chain (2) extends, at least one of the shafts comprising actuating means (4), (5), (6) coupled to one end (20) of the main chain (2) for moving it between a position in which it prohibits the passage of a land vehicle and a position in which it permits the passage of a vehicle, the actuating means (4), (5), (6) comprising at least one carriage (5) movably mounted along a rail (4) extending from base to top in the shaft (1), characterized in that the carriage (5) is coupled to drive means (6) comprising linear motor means (60), (61) capable of extending/retracting over a stroke D1 from bottom to top, or vice versa, in the shaft (1), the linear motor means (60), (61) being coupled to the carriage (5) by a flexible transmission means (7). extending between two extremities (70), (71),the linear motor means (60), (61) being capable of acting on the transmission means (7) between the ends (70), (71) so that the stroke D1 of the linear motor means (60), (61) causes a stroke D2 of the carriage (5) along said rail (4) such that D2 > D1.