Flexible Sanding Device for Cylinder Rock Specimens
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Solution Overview
Problem
Current methods for sanding cylinder rock specimens are inefficient, labor-intensive, and prone to damaging the specimens due to their mechanical strength and complex rock structures, leading to low precision and high costs.
Innovation Solution
A flexible sanding device with a base, adjustable connecting rods, elastic loaders, side sanding brushes, and a rotating mechanism that uses a water drilling rig to sand both ends and sides of the specimen simultaneously, reducing mechanical stress and allowing for precise and efficient processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a stocking-removing machine is used to cut the side of the cylinder rock specimen, then the specimen can be processed, but the rock specimen is easy to suffer secondary damage or break due to point-contact rigid loading
Solution Approach 1:
The patent introduces a flexible sanding device as an intermediary between the cutting process and the specimen. The device uses flexible sanding belts instead of rigid cutters, allowing gradual material removal without concentrated point loads. The sanding belts conform to the cylindrical surface and distribute loading across a larger area, preventing secondary damage while achieving the required dimensional accuracy.
Solution Approach 2:
The patent changes the loading parameters from rigid point-contact cutting to flexible distributed sanding. By transitioning from high-force cutting to lower-force abrasion, and from point-contact to surface-contact loading, the device reduces mechanical stress on the fragile rock specimen while maintaining processing capability.
2Manufacturing precision
If manual sanding operation is used, then the specimen can be sanded, but the process is time consuming, labor intensive and low efficiency
Solution Approach 1:
The patent designs the sanding device to be self-regulating through elastic loading mechanisms. The sanding belts are elastically loaded against the rotating specimen, automatically maintaining contact pressure without manual adjustment. The device serves itself by using the specimen's rotation to drive the sanding action, eliminating the need for manual feeding or pressure control while maintaining consistent dimensional accuracy.
Solution Approach 2:
The patent replaces manual mechanical sanding operations with an automated elastic loading system. Instead of manual sandpaper application, the device uses elastically loaded sanding belts that automatically conform to and sand the specimen surface, dramatically improving efficiency while preserving precision.
3Device complexity
If rigid loading is used to cut the side of the cylinder rock specimen, then the cutting process is simple, but the rock specimen is easy to be damaged or broken due to high mechanical strength
Solution Approach 1:
The patent replaces rigid cutting tools with flexible sanding belts that can conform to the cylindrical specimen surface. The flexible belts distribute mechanical loads across a larger area rather than concentrating force at a single point, reducing the risk of cracking and breaking while maintaining the ability to remove material effectively.
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 device enables convenient, economical, and precise sanding of cylinder rock specimens with reduced damage and operation time, accommodating various specimen sizes and ensuring high dimensional accuracy.
Implementation Method 1
four elastic loaders, each of the four elastic loaders having one end connected to one of the four adjustable connecting rods and having the other end connected to one of the four side sanding brushes
Implementation Method 2
the top sanding plate is connected with the inner rod through a high-strength spring
Implementation Method 3
the four side sanding brushes are arranged around the rock specimen and configured to sand a lateral surface of the rock specimen
Implementation Method 4
the external water drilling rig has a water inlet joint to introduce water into the drill rod
Data Source
AI summary
A rock sanding device includes a base, a bottom sanding plate, an adjustable connecting rod, an elastic loader, a connector, a side sanding brush, a top sanding plate, an inner rod, a prong and a drill rod. The top of the drill rod is fixedly connected with the rotating shaft of the external water drilling rig and the external water drilling rig has a water inlet joint to introduce water into the drill rod. The inner rod and drill rod are connected and fixed coaxially, and the bottom of the drill rod is symmetrically welded with four prongs. The rock specimen is placed in the center of the side sanding brush. The top sanding plate and the bottom sanding plate are provided in the top side and bottom side of the rock specimen, respectively.