Motor-Driven Removing Rod for Ring Main Unit Cable Head Shield
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional methods for removing the protective shield of a ring main unit cable head during maintenance often result in permanent damage to the equipment, leading to increased replacement costs and power failures due to inefficiencies and lack of automation.
Innovation Solution
An automatic removing apparatus with a motor-driven mechanism, silica gel lubrication, and inflatable airbag system that rotates a removing rod to separate the shield from the insulator or stress cone without causing damage, enhancing working efficiency and reducing manual effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual tool such as a flat blade screwdriver is used to remove the protective shield, then the removal process can be performed, but permanent damages to the electric equipment occur easily
Solution Approach 1:
The patent introduces a specialized removing apparatus as an intermediary tool between the operator and the cable head protective shield. This apparatus includes a removing rod with specific structural features (such as a hook-shaped end) that is designed to engage with the protective shield without causing damage to the insulator or stress cone. The intermediary tool provides controlled force application and proper engagement geometry, preventing the equipment damage that occurs with improvised tools like flat blade screwdrivers.
2Ease of operation
If a manual removing apparatus is used as disclosed in CN205992703U, then the cable head can be removed, but working efficiency is low due to manual rotation requirement
Solution Approach 1:
The patent replaces the manual rotation operation with an automated motor-driven system. The removing apparatus includes a motor that automatically rotates the removing rod, eliminating the need for manual rotation by the operator. This mechanical substitution maintains the removal functionality while dramatically improving working efficiency and reducing operator fatigue. The motorized system provides consistent rotational speed and torque, ensuring reliable shield removal.
3Productivity
If traditional manual tools are used for shield removal, then the process can be completed, but equipment replacement costs increase due to permanent damages
Solution Approach 1:
The patent incorporates protective features in the design of the removing rod, including a gel guiding tube and silica gel lubrication system. The gel guiding tube provides a cushioning interface between the removing rod and the cable head components, while the silica gel lubrication reduces friction and prevents adhesive bonding that could cause damage during removal. These beforehand cushioning measures ensure that the removal process completes successfully without causing permanent damage to the insulator or stress cone, thereby avoiding expensive equipment replacement.
4Adaptability or versatility
If no specialized tool is available for shield removal, then no removal can be performed, but the invention provides a specialized removing apparatus
Solution Approach 1:
The removing apparatus is designed with multi-functionality to justify its specialized structure. The apparatus can remove protective shields from different types of cable heads (ring main units and other configurations) by utilizing the same basic mechanism. The removing rod can be rotated manually or motorized, and the gel guiding tube adapts to different shield geometries. This universality reduces the need for multiple specialized tools for different cable types, making the increased device complexity worthwhile.
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 apparatus effectively prevents equipment damage by using a motorized and lubricated removing rod to efficiently separate the cable head shield, improving working efficiency and reducing economic losses associated with equipment failure.
Implementation Method 1
the motor has a rotation shaft which drives rotation of a main gear; a follower gear which meshes with the main gear is fixedly disposed at the connecting head for rotating around the main gear
Implementation Method 2
Inflation of the inflatable airbag is powered by the motor; when the inflatable airbag is inflated, the silica gel tank is squeezed to convey silica gel to the removing rod
Implementation Method 3
a front end of the removing rod connects to the connecting head; The connecting head has a hollow structure in form of a gel guiding tube
Data Source
AI summary
The present invention discloses an automatic removing apparatus for ring main unit cable head which comprises an outer casing formed by a handle and an outer casing body; the outer casing body has a rear end which is fixedly connected to the handle; the outer casing body has a front end which is fixedly connected to a connecting head; a motor and a control chip connected to the motor are disposed inside the outer casing; the control chip is electrically connected to a battery for supplying power to the control chip and the motor; the motor has a rotation shaft which drives rotation of a main gear; the connecting head is fixedly connected to a removing rod; a follower gear which meshes with the main gear is fixedly disposed at the connecting head for rotating around the main gear. The present invention has the advantageous effect of enhancing working efficiency.