Transfer Trailer Ground Braking System for Slope Control
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Solution Overview
Problem
The transfer of heavy work machines is slow and causes significant wear on the chassis, and existing braking methods are inefficient and prone to overheating, with limited grip and safety concerns, especially on sloping surfaces.
Innovation Solution
A method and transfer trailer design that uses a brake surface to press directly against the base, controlled by an operating device, which measures and adjusts speed and tractive force to achieve safe and efficient braking, eliminating the need for traditional brakes and reducing wear on the transfer trailer and vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional wheel brakes are used for the carriage, then braking power is sufficient, but the brakes overheat and require expensive coolers and regular maintenance
Solution Approach 1:
The invention extracts the braking function from the wheel brakes and transfers it to the ground surface. The carriage brakes are removed or rendered inactive, and braking is achieved by the braking device pressing the carriage body directly against the ground, eliminating the heat generation problem in the wheel brakes.
Solution Approach 2:
The ground surface acts as an intermediary for braking. Instead of the brakes converting kinetic energy to heat within the brake system, the ground surface absorbs the braking energy through friction, serving as a heat sink and eliminating the need for brake coolers.
2Power
If the carriage brakes are used for braking on downhill slopes, then braking is possible, but the grip of the tyres is limited even though braking power is sufficient
Solution Approach 1:
The invention removes the dependency on tyre grip for braking by extracting the braking function from the wheel-brake interface and relocating it to the ground-contact interface through the braking device that presses the carriage body against the ground.
Solution Approach 2:
The braking action is shifted from the horizontal plane (tyre-road contact) to a vertical dimension (carriage body pressing against ground), utilizing the weight and normal force of the carriage to enhance braking effectiveness beyond what tyre friction alone can provide.
3Speed
If carriage transportation is used to speed up transfers, then transfer speed increases, but braking energy management becomes problematic and requires complex cooling systems
Solution Approach 1:
The invention converts the harmful effect of braking energy (heat generation) into a beneficial use by directing the braking force through the braking device to press against the ground. The ground absorbs the thermal energy, and the same braking action provides speed control without requiring complex cooling systems.
Solution Approach 2:
The ground surface serves itself as the heat sink and braking surface, eliminating the need for dedicated cooling systems. The natural thermal capacity of the ground absorbs the braking energy, and the system uses the ground's physical properties to manage heat without additional complexity.
4Reliability
If emergency braking mechanisms are installed on the underside of vehicles, then emergency braking is achieved, but the mechanism is only suitable for lighter vehicles and occurs rarely
Solution Approach 1:
The braking device serves multiple functions: it provides controlled braking during normal operation, enables emergency braking when needed, and works effectively for heavy vehicles. The same mechanism that presses the carriage body against the ground for speed control also provides reliable emergency braking capability for heavy loads.
Solution Approach 2:
The invention changes the parameters of braking by increasing the contact force between the carriage body and ground through the braking device. This allows the system to handle heavy vehicles effectively by adjusting the pressing force, unlike previous emergency braking mechanisms designed only for lighter vehicles.
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 a safer and more efficient braking system that prevents overheating and reduces wear, allowing for continuous braking on sloping surfaces without relying on vehicle brakes, enhancing safety and reducing maintenance costs.
Implementation Method 1
the slowing of the transfer trailer takes place by pressing, with the aid of an operating device, a brake surface directly against the base
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The invention relates to a method for slowing a transfer trailer on a sloping base, in which the transfer trailer (10) is intended for transferring heavy transferable work machines (100),. and which transfer trailer (10) is arranged to be towed with the aid of a transfer vehicle (12), in which method the slowing of the transfer trailer (10) takes place by pressing, with the aid of an operating device (36), a brake surface (32) directly against the base (200), at least one control variable relating to the control of the speed of the transfer trailer (10) is measured during the transfer, the pressing of the brake surface (32) is guided on the basis of the measurement data. The invention also relates to a transfer trailer for transferring heavy transferrable work machines.