Hybrid Engine Motor Bracket Layout to Prevent Belt Slipping
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Solution Overview
Problem
Existing industrial hybrid engines face challenges in supporting a heavy and large electric motor with sufficient strength while preventing belt slipping, particularly due to the arrangement of the electric motor on the right side of the engine, which affects the support strength and belt transmission force.
Innovation Solution
The electric motor is attached to the engine case using a support bracket with first and second support portions, and an attachment portion between them, where the first support portion protrudes obliquely upward and the second support portion protrudes obliquely downward to securely bolt the upper and lower portions of the motor, enhancing the motor's support and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a heavy and large electric motor is disposed on the right side of the engine using a simple plate-shaped stay, then the layout flexibility is improved, but the support strength and belt transmission force are insufficient
Solution Approach 1:
The support bracket is divided into multiple functional segments: a first support portion for mounting the upper part of the motor, a second support portion for mounting the lower part, and an attachment portion for connecting to the engine case. This segmentation allows each part to perform its specific function optimally while collectively providing sufficient support strength for the heavy motor.
Solution Approach 2:
The support bracket extends in multiple spatial dimensions with the first support portion protruding obliquely upward and the second support portion protruding obliquely downward from the attachment portion. This three-dimensional configuration distributes the motor's weight and belt forces across different spatial directions, enhancing overall support strength while maintaining layout flexibility.
2Adaptability or versatility
If the electric motor is positioned away from the engine case to improve layout, then the layout freedom is improved, but the belt-driven operation may experience slipping due to insufficient support
Solution Approach 1:
The support bracket is pre-configured with both upper and lower support portions that firmly secure the motor to the engine case before belt-driven operation begins. This preliminary secure mounting ensures that the motor remains stable and prevents belt slipping during operation, even when positioned at an optimized distance from the engine case.
Solution Approach 2:
The support bracket's geometric parameters (protrusion angles, lengths of support portions, position of attachment portion) are optimized to provide sufficient mechanical support. By adjusting these parameters, the bracket maintains reliable belt transmission while allowing the motor to be positioned for optimal layout freedom.
3Strength
If a dedicated support bracket with multiple portions is used to improve motor support strength, then the support strength is improved, but the device complexity increases
Solution Approach 1:
The support bracket merges multiple functions into a single integrated component: it combines the functions of mounting the upper motor portion, mounting the lower motor portion, and attaching to the engine case. This consolidation provides necessary support strength while avoiding the complexity of multiple separate brackets or mounting mechanisms.
Solution Approach 2:
The support bracket is designed as a multi-functional component that simultaneously serves as a structural support element, a mounting bracket for the motor, and an attachment interface to the engine case. This universality reduces the overall number of parts needed while maintaining high motor support strength.
Data Source
AI summary
Based on further ingenuity, it is possible to support a heavy and large electric motor on an engine body with sufficient strength while driving the electric motor with a belt without slipping, thereby providing a more streamlined industrial hybrid engine. The industrial hybrid engine is provided with an endless rotation band wound around a drive pulley of a crankshaft and a motor pulley of an electric motor for motive power. The electric motor is attached to an engine case in a position-fixed state using one support bracket. The support bracket includes first and second support portions for attaching the electric motor, and attachment portions positioned between the first and second support portions for attaching the electric motor to the engine case.