Separator Rotor Mounting Component Weld Seam Geometry
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Solution Overview
Problem
The existing mounting components for crop treatment elements on separator rotors face issues with secure attachment due to unfavorable lever ratios, leading to increased forces and potential damage to the rotor during radial expansion, which affects the rotor's performance and service life.
Innovation Solution
The mounting component features side walls with extended longitudinal weld seams that project beyond the side walls, designed at an angle and in the direction of rotation, to absorb moments and reduce voltage peaks, along with recesses for shock absorption, allowing the component to yield and prevent detachment from the rotor surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the radial expansion of the assembly component and threshing element increases relative to the lateral surface of the separator rotor, then the load capacity and processing capability are improved, but the forces acting on the assembly component increase due to unfavorable lever ratio, causing the welded connection to become insecure
Solution Approach 1:
The weld seam is extended beyond the side wall in the circumferential direction (another dimension), creating a moment-absorbing structure that redistributes forces away from the critical base area weld connection, thereby maintaining secure hold while allowing greater radial expansion for improved load capacity
Solution Approach 2:
The extended weld seam section is designed in advance to absorb moments before they can cause damage to the base weld connection or separator rotor, preventing the harmful effects of high forces generated by unfavorable lever ratios
2Strength
If the assembly component is welded to the lateral surface of the separator rotor with extended radial expansion, then the load capacity is improved, but severe damage occurs to the separator rotor which negatively affects its performance and service life
Solution Approach 1:
The extended weld seam section acts as a preliminary protective structure that absorbs damaging moments and forces before they can reach the base weld connection and separator rotor, preventing severe damage and extending the service life of the stationary separator rotor
Solution Approach 2:
The design converts the potentially harmful high forces from unfavorable lever ratios into a beneficial moment-absorbing mechanism through the extended weld seam, which protects the separator rotor from damage while still allowing the assembly to handle high loads
3Device complexity
If the longitudinal weld seams on the side walls are designed to continue aligned with the base area weld connection, then the structural simplicity is maintained, but high voltage peaks occur during operation which can cause detachment
Solution Approach 1:
The weld seam section extending beyond the side wall is designed at an angle (30-60 degrees) rather than continuing aligned with the side wall, creating an asymmetric geometry that provides moment-absorbing capability and reduces voltage peaks in the base area weld connection, preventing detachment while maintaining structural integrity
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 design enhances the load capacity and service life of the separator rotor by reducing voltage peaks and preventing damage from shock loads, allowing for easier replacement of the mounting elements.
Implementation Method 1
The extension of the longitudinal weld seam beyond the length of the side wall and the design that deviates from the aligned continuation of the weld seam section leads to a reduction in the voltage peaks that occur during operation of the separation rotor in the longitudinal weld seams on the side walls of the mounting element via the weld seam sections projecting beyond the side walls
Implementation Method 2
The recess in the side walls can serve to achieve yielding of the mounting element in the direction of rotation of the separator rotor when a shock-like load occurs on the crop treatment element in order to avoid the mounting element tearing off from the lateral surface of the separator rotor
Implementation Method 3
The assembly component is connected to the threshing separating rotor by spot welding
Data Source
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AI summary
The invention relates to an assembly component (30) for attaching a crop treatment element (34, 35) to a separator rotor (19), wherein the assembly component (30) is designed as a profile component with mutually facing side walls (31) extending section by section in the circumferential direction of the separator rotor (19), wherein, for attaching the assembly component (30) to the surface of the separator rotor (19), each of the side walls (31) of the assembly component (30) has a longitudinal weld seam (36) extending substantially parallel to it, with a weld seam section (37) extending beyond the length of the respective side wall (31), which is designed at an angle to the respective side wall (31).