Flexible sanding device for cylinder rock specimen

Abstract

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.

Claims

1. A flexible sanding device for sanding a rock specimen in a shape of a cylinder, comprising: a base; a bottom sanding plate; four adjustable connecting rods; four elastic loaders; four connectors; four side sanding brushes; a top sanding plate; an inner rod; four prongs; and a drill rod; wherein a top of the drill rod is adapted to be fixedly connected with a rotating shaft of an external water drilling rig; the inner rod is coaxially connected with the drill rod; the four prongs are welded symmetrically around the drill rod; each of the four adjustable connecting rods is connected to each of the four prongs and is inserted into each of the four connectors; each of the four connectors is connected to each of the four side sanding brushes; each of the four elastic loaders is arranged between one of the four adjustable connecting rods and one of the four connectors; the four side sanding brushes are arranged around the rock specimen and configured to sand a lateral surface of the rock specimen; the top sanding plate is connected with the inner rod through a high-strength spring and is configured to sand a first end surface of the rock specimen; the bottom sanding plate is fixed at a center of the base and is configured to sand a second end surface of the rock specimen; and four convex grooves are evenly distributed on the base.

2. The flexible sanding device of claim 1, wherein a first end of each of the four adjustable connecting rods is a threaded rod; a second end of each of the four adjustable connecting rods is a hollow tube; each of the four elastic loaders comprises a spring and a convex spherical cylinder; the spring is disposed in the hollow tube; and one end of the spring is connected with the convex spherical cylinder.

3. The flexible sanding device of claim 2, wherein an end of each of the four connectors is provided with grooves; a cylinder cavity and a concave hemisphere are provided inside each of the four connectors; the convex spherical cylinder loader matches with the concave hemisphere; a convex body of two ends of the hollow tube is inserted into each of the four connectors for rotating connection.

4. The flexible sanding device of claim 1, wherein an end of each of the four prongs is provided with a threaded hole cooperating with the threaded rod.

5. The flexible sanding device of claim 1, wherein a geometrical shape of the base is flat cylindrical.

6. The flexible sanding device of claim 1, wherein the top sanding plate and the bottom sanding plate are thin cylinder; sides of the top sanding plate and the bottom sanding plate contacting with the rock specimen are provided with a sanding piece or a sanding coating.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a isometric diagram of the flexible sanding device for the cylinder rock specimen;

(2) FIG. 2 is a sectional view of the flexible sanding device for the cylinder rock specimen;

(3) FIG. 3 is a partial enlarged view of the flexible sanding device for the cylinder rock specimen; and

(4) FIG. 4 is another partial enlarged view of the flexible sanding device for the cylinder rock specimen.

(5) In the drawings: 1, base; 2, convex groove; 3, bottom sanding plate; 4, adjustable connecting rod; 4.1, hollow tube; 4.2, threaded rod; 4.3, convex body; 5, elastic loader; 5.1, spring; 5.2, convex spherical cylinder; 6, connector; 7, side sanding brush; 8, rock specimen; 9, top sanding plate; 10—high-strength spring; 11, inner rod; 12, prong; 13, drill rod.

DETAILED DESCRIPTION OF EMBODIMENTS

(6) The detailed description of embodiments are further described below with reference to the drawings.

(7) As shown in the isometric diagram of the flexible sanding device for cylinder rock specimen in FIG. 1, the flexible sanding device for cylinder rock specimen includes: a base of the cylinder 1, an embedded convex groove 2, a bottom sanding plate 3, an adjustable connecting rod 4, an elastic loader 5, a connector 6, a side sanding brush 7, a rock specimen 8, a top sanding plate 9, a high-strength spring 10, an inner rod 11, a prong 12, a drill rod 13. Wherein the top of the drill rod 13 and the rotation shaft of the external water drilling rig are tightened by a wrench to connect and fix. At the same time, the external water drilling rig introduces water into the drill rod 13 and the external drill rig is the dynamic source for rotating. The inner rod 11 and the drill rod 13 are fixed and connected coaxially. The bottom of the drill rod 13 is symmetrically welded with four prongs 12. The side sanding brush 7 is connected with the prong 12 by the adjustable connecting rod 4 and the blocky connector 5. The top sanding plate 9 and the bottom sanding plate 3 are in the top side and bottom side of the specimen, respectively. The top sanding plate 9 is connected with the inner rod 11 by a high-strength spring 10. The bottom sanding plate 3 is fixed in the center of the base 1 and the sanding piece works on the ends of the rock specimen by the elastic force of a high-strength spring 10. The base 1 is placed on a flat ground and four convex grooves 2 are evenly distributed on the base 1. When the motor is rotating, the drill rod 13 drives the prong 12 and the inner rod 11 to rotate and the inner rod 11 drives the top sanding plate 9 to rotate. At the same time, the adjustable connecting rod drives the side sanding brush to rotate, which produces the relative friction movement with the rock specimen to sand the specimen.

(8) As shown in the sectional view of the flexible sanding device for cylinder rock specimen in FIG. 2, the base 1 whose geometrical shape is flat cylinder with the diameter ranging from 300 mm to 1000 mm and the thickness ranging from 50 mm to 200 mm is tightly fixed on the ground, and the used material should be a wear-resistant, shock-resistant gray cast iron or a hard steel. The convex grooves 2 are evenly distributed on the base 1 and the bottom of the grooves is in the center of the cylinder base. The length of each groove is 130-400 mm. The upper width and the lower width of the convex groove are 5-10 mm and 9-20 mm, respectively. A sanding piece or a coating material is in the top of the bottom sanding plate, which is horizontally fixed on the lower cylinder. The diameter of the sanding piece can be determined by the size of to be sanded specimen, and the thickness of the sanding piece is 5-20 mm. The diameter and the height of the cylinder are 20-50 mm and 15-50 mm, respectively. One end of the adjustable connecting rod 4 is a threaded rod and the other end is the hollow tube, wherein the diameter and the length of the threaded rod are 5-20 mm and 50-200 mm, respectively. The outer diameter and the length of the hollow tube are 10-26 mm and 30-80 mm. The top of the threaded rod is a quadrangular cylinder with the height ranging from 5 mm to 15 mm. The ends of the hollow tube are symmetrically welded with two cylinder convex bodies with the diameter ranging from 2 mm to 3 mm and the height ranging from 2 mm to 4 mm. The elastic loader 5 consists of the spring and the convex spherical cylinder, wherein one end of the spring is disposed in the hollow tube of the adjustable connecting rod and the other end is connected with the convex spherical cylinder. The diameter and the length of the spring matched with the hollow tube are 8-24 mm and 50-100 mm, respectively. The height of the convex spherical cylinder is 5-8 mm and the diameter of the convex spherical cylinder is 4-8 mm. The connector 6, which is a block with the length of side ranging from 16 mm to 30 mm and the height ranging from 18 mm to 40 mm, connects the side sanding brush with the adjustable connecting rod. The ends of the connector is provided with grooves and inside of the connector is a cavity. The convex spherical cylinder of the elastic loader matches with the concave hemisphere inside of the connector and the convex body of two ends of the hollow tube is inserted into the connector for rotating connection. The side of the specimen is sanded by the side sanding brush 7 and the end of the side sanding brush 7 is an arc-shaped sanding piece or a sanding coating. The thickness, height and the arc length of the side sanding brush are 5-8 mm, 20-120 mm and 10-20 mm, respectively, and the height can be determined by the size of the specimen. The top sanding plate 9 is a thin cylinder with the sanding piece or the sanding coating on the inner side. The diameter and the thickness of the top sanding plate are 20-50 mm and 5-20 mm, respectively. One end of the inner rod 11 with the diameter ranging from 20 mm to 30 mm and the height beyond the drill rod ranging from 35 mm to 60 mm, is coaxially connected with the drill rod. The other end of the inner rod is connected with the top sanding plate by the high-strength spring. The top of the drill rod 13 and the external water drilling rig are tightened by a wrench, and the external water drilling rig is the dynamic source for rotating. The drill rod is a hollow tube with the outer diameter ranging from 28 mm to 63 mm and thickness of the side being 7 mm. The lower part of the drill rod is symmetrically welded with four prongs and the end of the prong has a threaded hole cooperating with the threaded rod.

(9) As shown in the partial enlargement view of the flexible sanding device for cylinder rock specimen in FIG. 3, it is the assembly diagram of the adjustable connecting rod 4, the elastic loader 5 and the blocky connector 6. The connecting rod rotates in the hole of the end of the prong to move forward by adjusting the block connected with the ends of the threaded rod by the wrench. After the convex body of ends of the hollow tube entered the connector through the grooves of the connector, the hollow tube is rotated to make the convex body of the ends of the tube stuck in the connector, and the convex spherical cylinder works on the concave hemisphere inside the connector by the effect of elastic force of the high-strength spring. At the same time, the hollow tube and the connector can undergo radial movement for flexible loading.

(10) It should be noted that the above embodiments are only for explaining the technical solutions of the present disclosure, and are not for limiting. Although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in prior art that the technical solutions described in the foregoing embodiments can be modified, or some of the technical features can be replaced by the equivalents. These modifications or substitutions are not beyond the spirit and scope of the technical solutions of the embodiments of the present disclosure.