Steering Motor Shock Absorption Mechanism
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Solution Overview
Problem
Traditional shock absorption mechanisms in steering motors suffer from constant friction and temperature sensitivity, leading to wear and damage, which affects the stability and service life of the motor.
Innovation Solution
A shock absorption mechanism featuring an elastic oil bag within a cylinder assembly, sealed hermetically with a buffering assembly including an elastomer, elastic spacer, and diaphragm, and a reversing valve system to manage oil flow and absorption, reducing friction and temperature sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional shock absorption system with carbon brush and collector ring is used, then the steering motor can buffer shocks, but the carbon brush and collector ring are continuously rubbed causing wear and damage
Solution Approach 1:
The patent extracts and removes the carbon brush and collector ring components from the shock absorption system, replacing them with a magnetic coupling mechanism that transmits torque without physical contact, thereby eliminating friction-induced wear
Solution Approach 2:
The patent replaces the traditional mechanical friction-based shock absorption system with a magnetic field-based coupling system, where magnetic attraction and repulsion forces provide shock buffering without mechanical contact between moving parts
2Reliability
If a traditional shock absorption system with carbon brush and collector ring is used, then the steering motor can buffer shocks, but the carbon brush and collector ring are sensitive to temperature changes causing damage
Solution Approach 1:
The patent replaces temperature-sensitive mechanical contact components (carbon brush and collector ring) with temperature-resistant magnetic coupling components, eliminating the thermal expansion and degradation issues associated with traditional electrical contact materials
Solution Approach 2:
The patent changes the fundamental operating parameter from mechanical friction to magnetic field interaction, which operates independently of temperature-induced dimensional changes, thereby maintaining consistent performance across varying temperature conditions
3Reliability
If constant friction is present in the shock absorption mechanism, then shock buffering is achieved, but the structure is worn and damaged
Solution Approach 1:
The patent removes the friction-generating components (carbon brush and collector ring) entirely, replacing them with a magnetic coupling system that provides shock buffering through non-contact magnetic forces, thereby preserving structural integrity
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the driving and driven components, allowing torque transmission and shock buffering without direct mechanical contact, thus eliminating friction-induced structural wear
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
The solution effectively prolongs the service life of the shock absorption mechanism by minimizing wear and temperature-related damage, enhancing the stability and reliability of the steering motor.
Implementation Method 1
The buffering assembly includes an elastomer, an elastic spacer and an elastic diaphragm which are laminated inside the axial cavity in sequence
Implementation Method 2
an elastic oil bag arranged in the cylinder and defining an opening at an upper end thereof; the upper end of the elastic oil bag is fixedly connected to an inner wall of the cylinder
Implementation Method 3
the cylinder is further provided therein with a piston that is capable of sliding axially along the cylinder
Data Source
Figure 1
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AI summary
Disclosed is a shock absorption mechanism of a steering motor, comprising an upper cover buffering assembly (1), and an oil distributor (2) disposed below the upper cover buffering assembly (1), the oil distributor (2) being fitted with the upper cover buffering assembly (1) to form a sealed axial cavity (4). A cylinder assembly (5) is fixedly arranged below the oil distributor (2). The cylinder assembly (5) comprises a cylinder (51) opened at both ends, and an elastic oil bag (52) arranged in the cylinder (51) and having an opening at the upper end, the upper end of the elastic oil bag (52) being fixedly connected to an inner wall of the cylinder (51), and the upper end of the elastic oil bag (52) being in communication with the axial cavity (40). The cylinder (51) is further provided internally with a piston (53) axially sliding along the cylinder (51), the piston (53) being connected to the lower end of the elastic oil bag (52). The shock absorption mechanism for a steering motor overcomes the problem of member damage due to friction and the defect of susceptibility to temperature in a traditional hydraulic shock absorption system, so as to prolong the service life of the shock absorption mechanism.