CN112145092A

CN112145092A - Converter

Info

Publication number: CN112145092A
Application number: CN202010999562.7A
Authority: CN
Inventors: 李欢; 王帅; 王兆义; 徐斌; 张松林; 李亮
Original assignee: Zoucheng Yankuang Taide Industry and Trade Co Ltd
Current assignee: Shandong Yuanyuntong Mining Equipment Science And Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-12-29
Anticipated expiration: 2040-09-22
Also published as: CN112145092B

Abstract

The invention relates to the technical field of drill bit and drill rod connectors, in particular to a converter which comprises a converter body, wherein the converter body comprises a drill rod connecting part and a drill bit connecting part, the drill rod connecting part is arranged above the drill bit connecting part and comprises an outer sleeve, an inner supporting tube and a supporting layer arranged on the inner supporting tube, an internal thread connected with a drill rod is arranged on the inner wall of the outer sleeve, the supporting layer comprises a supporting ring and a plurality of pore channels arranged on the supporting ring and the supporting layer, the supporting ring and the pore channels are respectively provided with a plurality of pore channels, the drill bit connecting part comprises a connecting rod and reinforcing ribs arranged on the outer wall of the connecting rod, and the. The device sets up outside sleeve pipe and inside stay tube on drilling rod connecting portion to set up the lock ring on the outer wall of inside stay tube, wear-resisting elastic material can play certain squeezing action to the drilling rod, strengthens the fastness that the drilling rod is connected.

Description

Converter

Technical Field

The invention relates to the technical field of drill bit and drill rod connectors, in particular to a converter.

Background

The drill rod is a steel pipe with threads at the tail part and is used for connecting surface equipment of the drilling machine and drilling and grinding equipment or a bottom hole device at the bottom end of a drilling well. The purpose of the drill pipe is to carry drilling mud to the drill bit and, together with the drill bit, raise, lower or rotate the bottom hole assembly. The drill pipe must be able to withstand large internal and external pressures, twists, bends and vibrations. The drill string typically consists of: the drill comprises a drill bit, a drill collar, a drill rod, a stabilizer, a special joint and a kelly, wherein the special joint is a converter and is used for connecting the drill bit and parts of the drill rod. When the drill rod drills the rock, because the rock stratum is firm, huge torque is born between the drill bit and the drill rod, and the joint of the converter is easy to leak water, damage and even break.

Disclosure of Invention

In order to solve the problem of converter connection of the drill bit and the drill rod, the invention provides a converter.

The technical scheme adopted by the invention for solving the technical problems is as follows: the converter comprises a converter body, wherein the converter body comprises a drill rod connecting part and a drill bit connecting part, the drill rod connecting part is arranged above the drill bit connecting part and comprises an outer sleeve, an inner supporting pipe and a supporting layer arranged on the inner supporting pipe, an internal thread connected with a drill rod is arranged on the inner wall of the outer sleeve, the supporting layer comprises a supporting ring and a pore passage arranged on the supporting ring and the supporting layer, a plurality of supporting rings and pore passages are arranged, the drill bit connecting part comprises a connecting rod and a reinforcing rib arranged on the outer wall of the connecting rod, an internal thread connected with the drill bit is arranged on the inner wall of the connecting rod, and a through cavity is arranged in the center of the drill rod connecting part and the center of the drill bit connecting part.

Preferably, the support rings are elastic wear-resistant material rings, the support rings are uniformly arranged on the outer wall of the inner support tube, and one side of each support ring is fixedly connected with the outer wall of the inner support tube.

Preferably, the plurality of pore passages are divided into a plurality of layers, one end of each layer of pore passage is arranged at the joint of each support ring and the outer wall of the inner support tube, the other end of each layer of pore passage is arranged on the inner wall of the inner support tube, the pore passages are spiral pore passages, and the pore passages of each layer of pore passage are arranged in parallel.

Preferably, the bottom of the drill rod connecting part and the top of the drill bit connecting part are in sealing connection through a fixing ring, the drill rod connecting part is cylindrical, the connecting rod is triangular prism-shaped with a chamfer, and a sealing ring is arranged at the bottom of the connecting rod.

Preferably, a sealing gasket is arranged at the bottom between the outer sleeve and the inner supporting tube.

Preferably, the sealing ring is made of rubber or PVC.

As optimization, one end of the reinforcing rib is fixedly connected with the fixing ring, and the other end of the reinforcing rib is arranged at the bottom of the connecting rod.

The whole beneficial effect of this scheme is: the converter is used for respectively and tightly connecting the drill bit and the drill rod by arranging the drill rod connecting part and the drill bit connecting part on the converter body; the outer sleeve and the inner supporting tube are arranged on the drill rod connecting part, and the supporting ring is arranged on the outer wall of the inner supporting tube, so that the wear-resistant elastic material can extrude the drill rod to a certain extent, and the connection firmness of the drill rod is enhanced; the spiral pore canal is arranged on the support ring and the inner support tube, so that liquid in the pore canal can flow between the pore canal and the through cavity, and the liquid in the drill rod of the drill bit can be effectively decompressed; be equipped with the strengthening rib on the drill bit connecting device, can effectively improve the holistic fastness of converter, can improve its stress tolerance greatly.

Drawings

FIG. 1 is a schematic isometric view of the present invention.

FIG. 2 is a schematic bottom front view.

FIG. 3 is a schematic top view of the present invention.

FIG. 4 is a schematic structural view of a drill pipe connecting part of the invention.

FIG. 5 is a schematic view of the cut-away structure A-A of FIG. 2.

The drill pipe comprises a drill pipe connecting part 1, a drill bit connecting part 2, a drill bit connecting part 3, an outer sleeve 4, an inner supporting pipe 5, a supporting layer 6, an inner thread 7, a supporting ring 8, a pore channel 9, a connecting rod 10, a reinforcing rib 11, a penetrating cavity 12, a fixing ring 13, a sealing ring 14 and a sealing gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the converter comprises a converter body, which comprises a drill rod connection part 1 and a drill bit connection part 2, the drill rod connecting part 1 is arranged above the drill bit connecting part 2, the drill rod connecting part 1 comprises an outer sleeve 3, an inner supporting pipe 4 and a supporting layer 5 arranged on the inner supporting pipe 4, the inner wall of the outer sleeve 3 is provided with an internal thread 6 connected with a drill rod, the support layer 5 comprises a support ring 7 and a pore canal 8 arranged on the support ring 7 and the support layer 5, a plurality of support rings 7 and a plurality of pore canals 8 are arranged, the drill bit connecting part 2 comprises a connecting rod 9 and a reinforcing rib 10 arranged on the outer wall of the connecting rod 9, the inner wall of the connecting rod 9 is provided with an internal thread 6 connected with a drill bit, and the centers of the drill rod connecting part 1 and the drill bit connecting part 2 are provided with a through cavity 11. The thread at the bottom of the drill rod is in threaded connection with the internal thread 6 of the outer sleeve 3 in the drill rod connecting part 1, the distance between the supporting layer 5 and the outer sleeve 3 is slightly smaller than the thickness of the bottom of the drill rod, and the outer sleeve 3 and the inner supporting layer can play a high fastening role on the drill rod.

The support ring 7 is made of elastic wear-resistant materials, the support rings 7 are uniformly arranged on the outer wall of the inner support tube 4, and one side of each support ring 7 is fixedly connected with the outer wall of the inner support tube 4.

The plurality of pore canals 8 are divided into a plurality of layers, one end of each layer of pore canal 8 is arranged at the joint of each support ring 7 and the outer wall of the inner support tube 4, the other end of each layer of pore canal 8 is arranged on the inner wall of the inner support tube 4, the pore canals 8 are spiral pore canals, and the pore canals 8 of each layer of pore canal 8 are arranged in parallel. The multilayer pore canal that sets up on inside stay tube 4 can be when drilling rod internal pressure increases to the inside decompression that carries on of drilling rod, makes the inside liquid of drilling rod upwards rotate through the pore canal, makes the inside liquid of drilling rod obtain the circulation of minizone to prevent that the drilling rod from bursting apart that drilling rod internal pressure is too high.

The bottom of the drill rod connecting part 1 is hermetically connected with the top of the drill bit connecting part 2 through a fixing ring 12, the drill rod connecting part 1 is cylindrical, the connecting rod 9 is triangular prism-shaped with a chamfer, and a sealing ring 13 is arranged at the bottom of the connecting rod 9.

A sealing gasket 14 is arranged at the bottom between the outer sleeve 3 and the inner supporting pipe 4.

The sealing ring 13 is made of rubber or PVC.

One end of the reinforcing rib 10 is fixedly connected with the fixing ring 12, and the other end of the reinforcing rib 10 is arranged at the bottom of the connecting rod 9.

The using method comprises the following steps: when the device is in specific use, the drill rod is connected with the converter body through the drill rod connecting part 1 in a threaded connection mode, the drill rod is extruded through the inner supporting layer 4, the drill rod can be simultaneously clamped, the drill bit connecting part 2 at the bottom is connected with a drill bit, and liquid flows in the through cavity 11 in the converter body. During drilling, if the pressure inside the drill rod is too high, the liquid penetrating the cavity 11 can circulate upwards from the support ring 7 and the pore canal 8 on the inner support tube 4, so that the distance change of the liquid in the converter body is carried out for a small distance.

The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the converter of the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. A converter, characterized by: the converter comprises a converter body, the converter body include drilling rod coupling part and drill bit coupling part, the drilling rod coupling part set up in drill bit coupling part top, the drilling rod coupling part include outside sleeve pipe, inside stay tube and set up the supporting layer on inside stay tube, outside cover intraductal wall on be equipped with the internal thread of being connected with the drilling rod, the supporting layer include the lock ring and set up the pore on lock ring and supporting layer, lock ring and pore all be equipped with a plurality of, drill bit coupling part include the connecting rod and set up the strengthening rib on the connecting rod outer wall, the connecting rod inner wall on be equipped with the internal thread that links to each other with the drill bit, the drilling rod coupling part the center with drill bit coupling part center be equipped with and run through the chamber.

2. The converter of claim 1, wherein: the supporting rings are elastic wear-resistant material rings, the supporting rings are uniformly arranged on the outer wall of the inner supporting tube, and one side of each supporting ring is fixedly connected with the outer wall of the inner supporting tube.

3. The converter of claim 1, wherein: the plurality of pore passages are divided into a plurality of layers, one end of each layer of pore passage is arranged at the joint of each support ring and the outer wall of the inner support tube, the other end of each pore passage is arranged on the inner wall of the inner support tube, the pore passages are spiral pore passages, and the pore passages of each layer of pore passages are arranged in parallel.

4. The converter of claim 1, wherein: the drill rod connecting part is cylindrical, the connecting rod is triangular prism-shaped with a chamfer, and a sealing ring is arranged at the bottom of the connecting rod.

5. The converter of claim 1, wherein: and a sealing gasket is arranged at the bottom between the outer sleeve and the inner supporting tube.

6. A converter according to claim 1 or 2, characterized in that: the sealing ring is made of rubber or PVC.

7. The converter of claim 1, wherein: one end of the reinforcing rib is fixedly connected with the fixing ring, and the other end of the reinforcing rib is arranged at the bottom of the connecting rod.