Pressure Source Unit With Elastic Mounting for Vibration Isolation
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Solution Overview
Problem
Existing pressure source units face challenges in suppressing vibration of the electric motor due to its positioning in the air, which leads to potential instability and noise.
Innovation Solution
A pressure source unit design where the motor casing is supported by an elastic body fixed to the machine, while the pump casing or connecting structure is also secured to the machine, effectively absorbing vibrations through the use of elastic bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electric motor is positioned in the air for easy access and maintenance, then ease of operation is improved, but vibration of the electric motor increases
Solution Approach 1:
The patent introduces an elastic body as an intermediary element between the motor casing and the machine structure. This elastic body serves as a vibration-absorbing mediator that allows the motor to be accessible while preventing vibration transmission to the machine frame and surrounding components.
2Device complexity
If the motor casing is directly fixed to the machine for structural simplicity, then device complexity is reduced, but vibration transmission to the machine increases
Solution Approach 1:
The elastic body acts as a vibration-absorbing intermediary between the motor casing and the machine structure, allowing simple direct mounting while preventing harmful vibration transmission to the machine frame.
Solution Approach 2:
The patent converts the potentially harmful vibration generated by the motor into a beneficial effect by using the elastic body to absorb and dampen the vibrations, transforming the harmful mechanical vibrations into elastic deformation energy that is dissipated as heat.
3Stability of the object's composition
If rigid mounting is used for the motor casing to ensure stability, then stability is improved, but noise generation increases
Solution Approach 1:
The elastic body serves as a mediator that maintains the motor's positional stability while isolating it from the machine structure, thereby preventing noise transmission through rigid mounting paths.
Solution Approach 2:
The rigid mounting that would normally transmit noise is replaced with elastic mounting, converting the noise transmission problem into a vibration absorption opportunity where the elastic body dampens vibrations before they can generate noise.
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 configuration significantly reduces motor vibration, enhancing stability and reducing noise, particularly effective for units with large-weight hydraulic pumps or when the connecting structure is fixed to the machine.
Implementation Method 1
The motor casing is supported by the machine via an elastic body... effectively absorbing vibrations through the use of elastic bodies
Data Source
Figure 1
Figure 2
AI summary
A pressure source unit (1) includes: a hydraulic pump (2) including a rotating shaft (21) and a pump casing (22); an electric motor (6) including an output shaft (61) and a motor casing (62), the output shaft (61) being coupled to the rotating shaft (21); and a connecting structure (5) that is located between the pump casing (22) and the motor casing (62) and that connects the pump casing (22) and the motor casing (62) to each other. The pump casing (22) or the connecting structure (5) is fixed to a machine (9) on which the pressure source unit (1) is installed, and the motor casing (62) is supported by the machine (9) via an elastic body (7).