Reversible Plough Frame Attachment via Form-Fitting Holding Part
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Solution Overview
Problem
Existing reversible plows face issues with screw connections shearing off due to strong shearing forces, leading to the need for frequent replacements and potential contamination and clogging from attachments on the plow frame.
Innovation Solution
The headstock is attached to the plow frame via a holding part that engages with the frame's side walls using form-fitting attachment elements, relieving the screw connection and providing a secure, impact-absorbing arrangement, while the plow body holder is designed to be attached to only one or two side walls, keeping the upper and lower areas of the frame free from attachments to prevent contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the headstock is clamped to the plow frame by means of a screw connection, then the headstock can be securely attached to the plow frame, but strong shearing forces act on the screws which can cause them to shear off
Solution Approach 1:
The attachment system is segmented into multiple functional elements: attachment elements on the holding part, complementary recesses in the plow frame, and screws. The attachment elements engage first to provide form-fitting centering, while screws provide secure fastening, distributing the attachment function across multiple components to prevent overload of any single element.
Solution Approach 2:
The attachment elements engage in form-fitting manner before the screws are fully tightened, preliminarily centering and positioning the holding part on the plow frame. This preliminary action ensures proper alignment and distributes initial loads, preventing the screws from bearing excessive shearing forces during assembly.
2Strength
If attachments are provided on the plow frame in all areas, then secure attachment is achieved, but the upper and lower areas become prone to clogging and contamination
Solution Approach 1:
Attachments are strategically positioned only on the lateral side walls of the plow frame where they are needed for secure attachment, while the upper and lower areas remain free of attachments. This localized placement maintains attachment security in critical areas while preventing contamination and clogging in areas that would otherwise be exposed to soil and debris.
Data Source
AI summary
The invention relates to a reversible plough (1) comprising a plough frame (2) that can be rotatably and/or pivotally secured to a support attachment in order to connect the reversible plough (1) to an agricultural traction vehicle, and comprising ploughshare rows (4, 5) on opposite sides of the plough frame (2), said rows having ploughing elements. One or other of the ploughshare rows (4, 5) can be moved selectively into the operational position or the non-operational position by a turning motion of the plough frame (2) which is initiated by means of a drive device and the ploughing elements (6) are secured on the plough frame (2) by means of ploughing element mountings (7). The plough is characterised in that the support attachment is only secured by means of a mounting part on one side wall, or only on two side walls of the plough frame with respect to the working position of said attachment.