Suspended Dumping System With Selective Line Brake
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Solution Overview
Problem
Existing cable-suspended, tiltable dumping containers require an attendant to control tilting and often need additional lines or powered actuators, limiting remote control and efficiency in dumping operations.
Innovation Solution
A remotely actuated line brake system using a selectively extensible and retractable cable with pulleys and attachment elements allows for controlled tilting of the container without additional lines or actuators, utilizing a hydraulic, pneumatic, or electrical brake to clamp pulleys and prevent rotation, enabling remote operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an attendant is used to control tilting or additional lines/actuators are added, then tilting control is achieved, but device complexity and operational efficiency deteriorate
Solution Approach 1:
The container utilizes its own suspension cable and existing pulley system to achieve self-tilting functionality. The brake mechanism, when applied to the suspension cable, converts the cable's tension into a tilting moment that rotates the container about its longitudinal axis, eliminating the need for separate tilting actuators or lines.
Solution Approach 2:
The suspension cable serves dual functions: it supports the container vertically and, when braked, generates the rotational moment for tilting. The same cable and pulley system used for vertical movement is repurposed for tilting control, reducing the need for additional dedicated tilting mechanisms.
2Extent of automation
If additional lines or powered actuators are added to the container, then tilting control is achieved, but ease of operation deteriorates due to attendant requirement
Solution Approach 1:
The patent replaces powered actuators and manual attendant control with a mechanically actuated brake system. The brake, when applied to the suspension cable, creates friction that generates a rotational moment on the container, achieving automated tilting control through remote actuation of the brake mechanism.
3Ease of operation
If a brake system is used to clamp pulleys, then remote tilting control is achieved, but device complexity increases
Solution Approach 1:
The brake acts as an intermediary mechanism between the control system and the container tilting. By applying friction to the suspension cable or pulley, the brake converts linear cable tension into rotational motion of the container, serving as a compact control element that bridges the gap between remote actuation and mechanical tilting action.
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
Enables remote control of the tilting mechanism, optimizing the tilting angle and ensuring complete dumping of contents without the need for additional equipment, improving operational efficiency and safety by maintaining the center of gravity and maximizing the tilting angle.
Implementation Method 1
a selectively actuated line brake associated with the second pulley
Data Source
AI summary
A material dumping system is suspendable by a single hoist line. A first hoist line pulley is attached to a forward attachment element on a dumping container so that the line can be wrapped under the first pulley to support the container. The hoist line extends from under the first pulley to a second pulley attachable to the hoist's support structure where it is wrapped over the second pulley to extend therefrom to a rearward attachment element on the dumping container. A selectively actuated hoist line brake permits rotation of both pulleys during normal raising and lowering of the dumping container with the container in a horizontal attitude. However, when it is desired to dump the contents of the container, the hoist line brake is actuated to prevent rotation of the second pulley while permitting rotation of the first pulley. The hoist line is then extended to tilt the container forward for dumping purposes.