CN219101245U

CN219101245U - Center drill rod for raise boring machine

Info

Publication number: CN219101245U
Application number: CN202320320139.9U
Authority: CN
Inventors: 徐顺青; 胡永锋; 沈鹤; 王勇
Original assignee: Master Drilling Engineering Changzhou Co ltd
Current assignee: Master Drilling Engineering Changzhou Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-05-30
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a center drill rod for a raise boring machine, which comprises a rod body, a bushing, a loosening ring, a positioning pin, a positioning ring, a first bolt, a positioning ring and a second bolt, wherein the positioning ring is arranged on the rod body; wherein the bushing is fixedly connected to the end part of the rod body; the positioning ring is arranged at the end part of the rod body and corresponds to the position of the bushing; the positioning ring is arranged at the end part of the rod body and corresponds to the positioning ring, and the loosening ring is arranged at one end of the rod body, which is far away from the bushing. The utility model is used for connecting special drill rods of a drilling and grinding facility at the bottom end of a vertical shaft. The purpose of the workpiece is to raise or lower the drilling and grinding equipment, to connect other drill rods or tools, and to transmit the moment of energy required to break the rock. The workpiece must be able to withstand significant internal and external stresses, distortions, bending, stretching and vibrations. The connection is positioned on a section of drill pipe near the drilling and grinding facility and is used for stabilizing the drilling direction.

Description

Center drill rod for raise boring machine

Technical Field

The utility model relates to the technical field of mine exploration, in particular to a center drill rod for a raise boring machine.

Background

Due to the complex underground working condition, the common drill rod has short underground working life in the drilling process, and failure accidents often occur. In the conventional engineering, the whole system is formed by components such as a drill rod, a drill collar, a centralizer and the like, and the structure is complex and the components are numerous. The drilling rod is stressed more complicated in the use process, is subjected to invariable and alternating loads, particularly, the clamping resistance of the lower part of the drilling rod and the deflection of a stress point influence the drilling speed, the service life of a drill bit is reduced, and the drilling cost is increased.

Disclosure of Invention

The utility model aims to provide a center drill rod for a raise boring machine, which is used for connecting a special drill rod of a drilling and grinding facility at the bottom end of a vertical shaft. The purpose of the workpiece is to raise or lower the drilling and grinding equipment, to connect other drill rods or tools, and to transmit the moment of energy required to break the rock. The workpiece must be able to withstand significant internal and external stresses, distortions, bending, stretching and vibrations. The connection is positioned on a section of drill pipe near the drilling and grinding facility and is used for stabilizing the drilling direction.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

a center drill pipe for a raise boring machine, comprising:

the device comprises a rod body, a bushing, a loosening ring, a positioning pin, a positioning ring, a first bolt, a positioning ring and a second bolt;

wherein the bushing is fixedly connected to the end part of the rod body;

the positioning ring is arranged at the end part of the rod body and corresponds to the position of the bushing;

the positioning ring is arranged at the end part of the rod body and corresponds to the positioning ring.

Above-mentioned center drilling rod for raise boring machine, wherein, the pine loose ring set up in the body of rod is kept away from the one end of bush.

Above-mentioned center drilling rod for raise boring machine, wherein, the locating pin install in on the body of rod body and correspond the position of retainer plate.

Above-mentioned center drilling rod for raise boring machine, wherein, the retainer plate passes through first bolt install in on the body of rod body.

Above-mentioned center drilling rod for raise boring machine, wherein, the holding ring passes through the second bolt fixed mounting is in on the body of rod.

The utility model has at least the following beneficial effects:

1. the utility model realizes the central drill rod for the raise boring machine, and the combination of the central drill rod for the raise boring machine lightens the radial and axial intense vibration of an elastic system of the central drill rod in a hole, lightens the eccentric wear of a drill bit and the drill rod, ensures the coring quality and prevents well deviation or artificial directional drilling.

2. The center drill rod for the raise boring machine is of an integrated design, simple in structure and high in reliability.

3. The central drill rod for the raise boring machine can save the material of the rod body and simplify the processing workload of the rod body due to the assembled design of the central drill rod and the bushing.

4. The central drill rod for the raise boring machine has good applicability to different geological conditions, and rock slag can quickly reach the ground along the discharge channel, so that the drill holding and the drill clamping cannot occur in actual construction.

5. According to the center drill rod for the raise boring machine, the hard alloy blocks are inlaid on the center drill rod, so that the functional section of the centralizer is wear-resistant, and the service life of the center drill rod is prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic structural view of a center drill rod for a raise boring machine according to the present utility model.

Reference numerals illustrate:

1. a rod body; 2. a bushing; 3. loosening the ring; 4. a positioning pin; 5. a positioning ring; 6. a first bolt; 7. a positioning ring; 8. and a second bolt.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.

Referring to fig. 1, a center drill rod for a raise boring machine according to an embodiment of the present utility model includes: the bolt comprises a bolt body 1, a bushing 2, a loosening ring 3, a positioning pin 4, a positioning ring 5, a first bolt 6, a positioning ring 7 and a second bolt 8;

by adopting the technical scheme, the special drill rod is used for connecting the special drill rod positioned at the bottom end drilling and grinding facility of the vertical shaft. The purpose of the workpiece is to raise or lower the drilling and grinding equipment, to connect other drill rods or tools, and to transmit the moment of energy required to break the rock. The workpiece must be able to withstand significant internal and external stresses, distortions, bending, stretching and vibrations. The connecting is positioned on a section of drill rod close to the drilling and grinding facility and used for stabilizing the drilling direction, and the hard alloy blocks are fixed in the grooves of the rod body 1 through powder spraying welding, and the welding powder serves as a binder. At a certain welding temperature, the welding powder material firmly combines the two parts together, a discharge channel is arranged between two adjacent working sections, the whole welding part is divided into a plurality of sections, chip removal is smooth during working, the outer diameter of each working section welded with the alloy blocks is ensured to be consistent and concentric through mechanical precision machining, and the stress of the workpiece during working is ensured to be uniform while the height of a grinding layer is ensured to be consistent.

Wherein, the lining 2 is fixedly connected with the end part of the rod body 1;

by adopting the technical scheme, the bushing 2 is in direct contact with the tool apron and is stressed, so that the bushing is made of the same material as the tool apron, and the bushing is designed in an assembling manner, so that the bushing can be conveniently replaced after being worn, and the cost is saved.

Wherein the release ring 3 is arranged at one end of the rod body 1 far away from the bushing 2;

through adopting above-mentioned technical scheme, when the loose ring 3 has guaranteed that the pin thread of drilling rod is connected with other drilling rods, if under the condition of locking appears, can remove village cover through the technical scheme who allows, convenient dismantlement.

Wherein, the locating pin 4 is installed on the body 1 of the rod and corresponds to the position of the locating ring 5;

by adopting the technical scheme, the locating pin 4 ensures the location of the rod body and the tool apron.

The positioning ring 5 is mounted at the end of the rod body 1 and corresponds to the position of the bushing 2, and the positioning ring 5 is mounted on the rod body 1 through the first bolt 6.

By adopting the above technical scheme, the locating pin 4 is fixed to the locating ring 5.

The positioning ring 7 is mounted at the end part of the rod body 1 and corresponds to the position of the positioning ring 5, and the positioning ring 7 is fixedly mounted on the rod body 1 through a second bolt 8;

by adopting the technical scheme, the positioning ring 7 is used as a positioning and limiting device for the rod body 1 and the bushing 2.

The working principle of the utility model is as follows: for connecting special drill rods located at the bottom end of the shaft. The purpose of the workpiece is to raise or lower the drilling and grinding equipment, to connect other drill rods or tools, and to transmit the moment of energy required to break the rock. The workpiece must be able to withstand significant internal and external stresses, distortions, bending, stretching and vibrations. The connection is positioned on a section of drill pipe near the drilling and grinding facility and is used for stabilizing the drilling direction.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept, either as a result of the foregoing teachings or as a result of the knowledge or skills of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. A center drill rod for a raise boring machine, comprising:

the novel bolt comprises a rod body (1), a bushing (2), a loosening ring (3), a positioning pin (4), a positioning ring (5), a first bolt (6), a positioning ring (7) and a second bolt (8);

wherein the bushing (2) is fixedly connected to the end part of the rod body (1);

wherein, the positioning ring (5) is arranged at the end part of the rod body (1) and corresponds to the position of the bushing (2);

the positioning ring (7) is arranged at the end part of the rod body (1) and corresponds to the positioning ring (5).

2. The center drill rod for a raise boring machine according to claim 1, wherein: the loosening ring (3) is arranged at one end of the rod body (1) far away from the bushing (2).

3. The center drill rod for a raise boring machine according to claim 1, wherein: the locating pin (4) is arranged on the rod body (1) and corresponds to the locating ring (5).

4. The center drill rod for a raise boring machine according to claim 1, wherein: the positioning ring (5) is arranged on the rod body (1) through the first bolt (6).

5. The center drill rod for a raise boring machine according to claim 1, wherein: the positioning ring (7) is fixedly arranged on the rod body (1) through the second bolt (8).