Tilting Channel Cable Drive for Molten Material Distribution
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Solution Overview
Problem
Existing tilting mechanisms for distributing molten materials, such as liquid cast iron, require high-torque gearmotor groups, which are expensive, and alternative hydraulic or pneumatic systems pose safety risks and lack reliable angle adjustment or manual tilting capabilities.
Innovation Solution
A tilting channel with a drive unit featuring a geared motor connected to a drum winch and cable system, allowing for reduced torque requirements and enabling the use of a smaller, less expensive motor, with cable transmission providing flexibility in drive unit placement and easy assembly, and incorporating a self-locking worm gear train for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional gearmotor group with high torque output is used to tilt the heavy channel, then the tilting function is reliable, but the device becomes expensive and large
Solution Approach 1:
The patent applies counterweight principle by balancing the tilting channel so that gravity assists the tilting motion. The channel is designed with counterweights that offset the heavy weight of the channel body, reducing the torque required from the motor to a manageable level that can be handled by a compact, cost-effective gearmotor group
2Adaptability or versatility
If a second input shaft with high transmission ratio is added to the reducer for manual tilting, then manual operation is enabled, but the gearmotor unit becomes more expensive
Solution Approach 1:
The patent implements multi-functionality by designing the drum winch system to accept both motorized operation through the geared motor unit and manual operation through a hand wheel. The same cable and drum mechanism serves both purposes, eliminating the need for separate high-ratio geartrains and reducing overall system complexity and cost
3Ease of operation
If hydraulic or pneumatic cylinders are used for tilting, then tilting motion is achieved, but safety risks increase due to fire danger or loss of manual control
Solution Approach 1:
The patent replaces hydraulic or pneumatic systems with a purely mechanical cable and drum winch system. This eliminates fire risks associated with hydraulic oil near molten iron and removes dependency on fluid supplies. The mechanical system allows direct manual operation via hand wheel and maintains safety through self-locking worm gear mechanism
4Force
If a large diameter hydraulic cylinder is used to tilt the channel, then tilting force is sufficient, but the system requires high pressure and large flows of hydraulic oil
Solution Approach 1:
The patent extracts the hydraulic fluid system entirely from the tilting mechanism, replacing it with a mechanical cable and drum system. This eliminates the need for large quantities of hydraulic oil under high pressure, using instead a compact mechanical advantage system through the drum and cable arrangement
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 solution provides a safe, reliable, and cost-effective tilting mechanism that balances the channel for efficient molten material distribution, allowing for manual operation in case of motor issues and reducing the risk of fire hazards near molten iron.
Implementation Method 1
at least one section of cable winding on the drum, respectively unwinding from the latter; one end of said cable section being fixed to the tilting channel at a distance L from its tilting axis, so as to be able to apply the tilting moment to the tilting channel
Implementation Method 2
the torque required at the output of the geared motor unit to operate the drum winch is relatively low, so that it is possible to use a geared motor of reduced size, and therefore inexpensively. Most often the reducer only needs to have a gear train consisting of a worm and a conjugate worm wheel and can be self-locking when stationary
Implementation Method 3
the tilting channel is balanced so as to return from the second position to the first position when the cable is unwound from the drum
Data Source
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AI summary
The invention relates to a device for distributing a material in a molten state, said device comprising a swinging chute (16) supported so as to be capable of swinging about a substantially horizontal swinging axis (25), and a driving group (40). The latter comprises gear motor group (42), a drum winch (44) driven by the gear motor group (42), and at least one cable segment (50, 50') that can be both wound on or unwound from said drum. One end of the cable segment (46, 50, 50') is attached to the swinging chute (16) at a distance L from the swinging axis (25) thereof so as to apply a swinging momentum to said swinging chute (16).