Transmission Line Spacer Soft Connection Design
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Solution Overview
Problem
Existing overhead transmission line spacers suffer from rubber gasket dropout during transport and use, and their hard connection structures are prone to damage and rupture due to torsional and bending forces during conductor galloping, leading to potential conductor breakage and operational hazards.
Innovation Solution
A rigid-collision-free transmission line spacer clamp connection structure featuring a soft connection design with rotating joint rubber gaskets and a double-frame-board spacer frame, which includes rotating joint slots and a connecting rod with elastic materials to absorb energy and prevent damage from galloping, replacing the hard connection structure with a soft one to reduce abrasion and deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hard connection structure with limiting boss is used at the joint between frame and clamp, then the clamp can rotate a certain angle under axial torsional force, but the structure suffers severe collision during galloping and vibration, causing abrasion or rupture of the limiting structure
Solution Approach 1:
A rotating joint rubber gasket is introduced as an intermediary element between the connecting rod and the rotating joint slot. This rubber gasket mediates the interaction, allowing rotation while absorbing collision energy through elastic deformation, thereby preventing direct hard contact and reducing abrasion and rupture risks
Solution Approach 2:
The connection structure transitions from a rigid hard connection to a flexible soft connection by changing the material parameter of the joint from metal-to-metal contact to rubber-to-metal contact. The rubber gasket's elastic properties enable it to deform under load and return to original shape, accommodating rotational movement while dissipating impact energy
2Stability of the object's composition
If only one cylindrical clamping block is provided in the rubber gasket, then the sub-conductors can be fixed, but the spacer often drops out of the spacer clip during transport, installation and use
Solution Approach 1:
The single cylindrical clamping block is segmented into multiple clamping blocks (at least two) arranged within the rubber gasket. This segmentation provides multiple contact points with the conductor, increasing friction and mechanical interlocking, thereby preventing the spacer from dropping out during transport and installation while maintaining conductor fixation
Solution Approach 2:
The solution combines rubber material with multiple clamping blocks to create a composite gripping structure. The rubber provides elasticity and cushioning while the clamping blocks provide mechanical engagement points, creating a synergistic effect that enhances both conductor fixing and retention capabilities
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 prevents rubber gasket dropout and reduces damage to the spacer due to conductor galloping by converting rigid impacts into elastic ones, enhancing the spacer's anti-galloping performance and maintaining the conductor's integrity.
Implementation Method 1
the hard connection structure of the existing spacer is improved into a soft connection structure, thus avoiding tear, deformation and the like at spacer rotating joints
Implementation Method 2
rotating joint rubber gaskets and a double-frame-board spacer frame, which includes rotating joint slots and a connecting rod with elastic materials to absorb energy
Implementation Method 3
The clamp clip of the spacer grips the sub-conductors in the bundle through a rubber sheet with a pad
Data Source
AI summary
A rigid-collision-free transmission line spacer clamp connection structure includes a spacer frame, rotating joint rubber gaskets and spacer connecting clamps, the spacer frame being uniformly provided with a plurality of rotating joint slots that are rotationally connected with spacer connecting clamps, adopting a “spacer frame, rotating joint rubber gasket and spacer connecting clamp body tail” connection form. The spacer connecting clamp has a connecting rod and a clip, the connecting rod being provided with a connecting rod mounting hole at a rear end and the rotating joint slot being provided with a rotating joint rubber gasket and a spacer connecting clamp rotating shaft therein. The spacer connecting clamp rotating shaft penetrates through the connecting rod mounting hole and a rotating joint rubber gasket mounting hole.