Electric Lifting Column Motor Mounting for Heat and Vibration Control
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Solution Overview
Problem
The existing driving devices for electric lifting vertical columns face issues with limited heat dissipation, reduced service life, and compromised gearing performance due to inadequate fixation and heat management in the motor and gearing system.
Innovation Solution
The driving device incorporates a motor shell with elastic supporting block sleeves made of rubber for improved fixation and heat dissipation, along with a gearing system featuring a worm wheel, gearing rod joint, and cylindrical gearing bulges for stable and efficient transmission, ensuring reliable assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If foam plastic is used to fix the motor in the motor shell, then the fixation effect is improved, but the heat dissipation performance is degraded
Solution Approach 1:
The motor fixing structure is divided into multiple independent components: tail pad for tail fixation, supporting blocks with elastic sleeves for side fixation, and bottom plate for base sealing. This segmentation allows each component to perform its specific function without interfering with heat dissipation, as none of them completely surround the motor like the foam plastic did.
Solution Approach 2:
The harmful foam plastic material is completely removed from the motor shell. Instead of using foam plastic that covers all motor sides and traps heat, the patent extracts this problematic element and replaces it with a open structure that allows heat to dissipate freely while still providing adequate fixation through discrete supporting blocks and tail pad.
2Object-generated harmful factors
If foam plastic is used to fix the motor, then vibration reduction is improved, but service life is reduced due to overheating
Solution Approach 1:
Elastic supporting block sleeves made of rubber are introduced as intermediary elements between the supporting blocks and the motor body. These elastic sleeves provide vibration absorption and shock damping while allowing heat to pass through, unlike the foam plastic that trapped heat. The rubber material specifically addresses vibration reduction without compromising heat dissipation.
3Temperature
If foam plastic is made thinner to improve heat transfer, then heat dissipation is improved, but fixation effect is degraded
Solution Approach 1:
Instead of using a continuous foam plastic structure that would require thinning to improve heat transfer, the fixing structure is segmented into discrete supporting blocks and a tail pad. This segmentation allows adequate thickness in each component for both fixation and heat transfer, eliminating the need to compromise between these two functions.
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 solution enhances heat dissipation, prolongs motor service life, and provides stable, low-noise, and efficient gearing performance with reduced vibration and failure rates.
Implementation Method 1
the elastic supporting block sleeves are made of rubber, wherein rubber is a reversible high-elastic deformation of polymer materials
Implementation Method 2
the tail end of the motor is fixed inner of the tail pad by closely matched to the groove, which is used to further fix the motor and reduce the vibration and noises
Data Source
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AI summary
The invention discloses a driving device of an electric lifting vertical column, which comprises a motor shell and a motor, wherein the motor drives a gearing device which brings along the lifting vertical column going up and down. The motor shell comprises a bottom box and a bottom plate. A tail pad and at least two mutually parallel supporting blocks are arranged on the bottom box. The lengths of the supporting blocks are smaller than the length of the motor. Elastic supporting block sleeves are sleeved on the supporting blocks. The tail end of the motor is embedded into the tail pad. Both sides of the motor are clamped between the elastic supporting block sleeves. The bottom plate is sealed and connected with the bottom box to realize the fixation of the motor. The elastic supporting block sleeves are made of rubber. The gearing device comprises a turbine, a turbine connecting head and a gearing rod joint which are sequentially connected together. An output shaft of the motor drives the turbine to rotate. The turbine sequentially drives the turbine connecting head and the gearing rod joint to rotate; and the gearing rod joint drives a gearing rod in the lifting vertical column to rotate. The invention can reliably fix the motor and it is beneficial to the heat dissipation of the motor, and also it has reliable fixation and low noises and it can effectively prolong the service life of the motor; and meanwhile, the driving device has simple gearing structure, stable and reliable running and high transmission efficiency.