Lifting Column Transmission Assembly for Reversible Mounting
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Solution Overview
Problem
Conventional transmission assemblies for electric lifting columns cannot be adapted to both orderly-assembled and reversely-assembled configurations, leading to increased manufacturing costs due to the need for separate structures.
Innovation Solution
A transmission assembly featuring a hollow spindle with an outer thread, a rotating transmission worm, a locking structure, and a guide tube with a non-cylindrical structure, allowing for synchronous rotation and telescoping, which can be adapted to both assembly types by flipping the assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate transmission assembly structures are designed for orderly-assembled and reversely-assembled lifting columns, then the lifting column can be assembled in different configurations, but the manufacturing cost increases and device complexity increases
Solution Approach 1:
The transmission assembly is designed with a universal structure that can function in both orderly-assembled and reversely-assembled configurations. The hollow spindle with external thread, transmission worm, and transmission nut combination can operate effectively regardless of whether the inner tube is connected to the bottom housing or the outer tube is connected, eliminating the need for separate designs for different assembly methods.
Solution Approach 2:
The invention allows the transmission assembly to be inverted or flipped to adapt to different assembly configurations. By designing the transmission components with symmetric or reversible mounting capabilities, the same transmission assembly can be installed in opposite orientations, enabling both orderly and reverse assembly methods to use identical components.
2Adaptability or versatility
If separate transmission assembly structures are designed for orderly-assembled and reversely-assembled lifting columns, then the lifting column can be assembled in different configurations, but the manufacturing cost increases
Solution Approach 1:
The transmission assembly uses standardized components including the hollow spindle with external thread, transmission worm, and transmission nut that can serve both assembly configurations. This universality allows manufacturers to produce a single set of transmission components for both orderly and reverse assembly applications, significantly reducing manufacturing costs by eliminating the need to maintain separate production lines for different transmission assembly types.
Solution Approach 2:
The invention employs homogeneous materials and standardized component specifications throughout the transmission assembly. The hollow spindle, transmission worm, and transmission nut are designed with consistent material properties and dimensional standards, allowing for simplified manufacturing processes and reduced production costs while maintaining functionality across different assembly configurations.
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 allows a single type of transmission assembly to satisfy both orderly-assembling and reversely-assembling requirements, reducing manufacturing costs, enhancing stability, and simplifying the mounting process while maintaining compactness and reliability.
Implementation Method 1
a hollow spindle, an outer wall of which is provided with an outer thread; a transmission worm disposed in the hollow spindle, wherein the transmission worm may rotate synchronously with the hollow spindle and the transmission worm may be telescoped relative to the hollow spindle along an axial direction
Implementation Method 2
a first transmission nut which is thread-fitted with the transmission worm, wherein the hollow spindle is rotatably positioned relative to the first transmission nut in the axial direction
Implementation Method 3
a second transmission nut which is thread-fitted with the hollow spindle
Implementation Method 4
a guide tube which is rotatably limited in the bushing, the guide tube synchronously rotating with the hollow spindle, wherein the guide tube may be relatively telescoped relative to the hollow spindle in the axial direction
Data Source
AI summary
A transmission assembly includes a hollow spindle, an outer wall of which is provided with an outer thread; a transmission worm disposed in the hollow spindle; a first transmission nut which is thread-fitted with the transmission worm, wherein the hollow spindle is rotatably positioned relative to the first transmission nut in an axial direction, and an external portion of the first transmission nut is provided with a locking structure for limiting the first transmission nut from rotating; a second transmission nut which is thread-fitted with the hollow spindle; a bushing which is bushed outside of the hollow spindle, the second transmission nut being fixedly connected with the bushing; and a guide tube which is rotatably limited in the bushing.