PTO Support Bracket for Heavy Auxiliary Device Mounting
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Solution Overview
Problem
Existing PTO systems face damage due to excessive stress when heavy auxiliary devices are directly mounted, leading to potential damage of the PTO, transmission, and auxiliary device, and custom support brackets often fail to provide adequate support, risking further damage.
Innovation Solution
A PTO support bracket is designed to attach directly to the transmission and PTO adjacent the output flange, providing a separate support mechanism that reduces bending moment and increases weight limits, allowing for heavy auxiliary devices without limiting the orientation of the auxiliary device flange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a heavy auxiliary device is directly mounted on the PTO output flange, then the auxiliary device can be directly powered, but excessive stress is placed on the mechanical connection between the PTO and transmission, causing damage
Solution Approach 1:
A support bracket is introduced as an intermediary component between the PTO and the heavy auxiliary device. The bracket attaches to both the PTO housing and a separate vehicle mounting point, distributing the load away from the PTO-transmission mechanical connection. This allows heavy auxiliary devices to be mounted without exceeding the weight limits of the PTO-transmission connection.
Solution Approach 2:
The support system is segmented into multiple attachment points: one connecting to the PTO housing and another connecting to a separate vehicle structure. This segmentation distributes the stress across different structural elements rather than concentrating it at the PTO-transmission interface, enabling support for heavier auxiliary devices.
2Weight of moving object
If custom support brackets are fabricated to support heavy auxiliary devices, then weight limits can be exceeded, but the quality and reliability vary greatly depending on user skill, and improper installation can cause damage
Solution Approach 1:
The support bracket is designed as a universal component that can be adapted to different PTO models and vehicle types through standardized attachment features. The bracket includes multiple mounting holes and attachment points that allow it to work with various PTO housings and vehicle structures, providing reliable support without requiring custom fabrication for each application.
Solution Approach 2:
The support bracket is designed as a simple, easily replaceable component that can be manufactured at low cost using standard materials and fabrication methods. If damage or wear occurs, the entire bracket can be replaced as a single unit rather than requiring complex repairs, ensuring continued reliable operation.
3Strength
If traditional custom support brackets are attached to the auxiliary device, then heavy devices can be supported, but the orientation of the auxiliary device flange is limited and cannot be adjusted
Solution Approach 1:
The support function is extracted from the auxiliary device itself and placed on a separate bracket structure. The bracket attaches to the PTO housing and vehicle structure, while the auxiliary device mounts directly to the PTO output flange without interference from the support mechanism. This separation maintains full orientation flexibility for the auxiliary device flange while providing the necessary structural support.
Data Source
AI summary
This disclosure relates to power takeoff devices (PTOs) useful for mounting on transmissions and for performing, directly or indirectly, useful work via the PTO's rotatable output shaft. More particularly, this disclosure relates to a PTO support bracket configured to support the PTO when a heavy auxiliary device is directly mounted thereto.