CN211201789U

CN211201789U - Welding type multi-edge through cable drill rod

Info

Publication number: CN211201789U
Application number: CN201922272197.5U
Authority: CN
Inventors: 刘伟; 周长胜; 邵安芬
Original assignee: Shandong Jiushang Engineering Machinery Co ltd
Current assignee: Shandong Jiushang Engineering Machinery Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-07
Anticipated expiration: 2029-12-18

Abstract

The utility model belongs to coal mining machinery tool field relates to the drilling rod, especially relates to a many arriss of welding formula lead to cable drilling rod. The drilling rod body that is equipped with the circulation groove including inside, the both ends welding of drilling rod body has the quick-operation joint, drilling rod body outer wall is provided with the helicla flute, the surface of drilling rod body is provided with 3 evenly distributed's excision face, is the convex surface setting between two adjacent excision faces, the helicla flute runs through the convex surface setting, be provided with the logical groove that is provided with along drilling rod body axial on the excision face, lead to groove and helicla flute contact setting, the helicla flute includes first helicla flute and second helicla flute, the spiral pitch of first helicla flute is greater than the spiral pitch of second helicla flute. The utility model provides a many arriss of welding formula lead to cable drilling rod through setting up the first helicla flute and the second helicla flute of different spiral pitches, makes to form alternately between first helicla flute and the second helicla flute, and then whole big cross section groove area, improves row's powder effect.

Description

Welding type multi-edge through cable drill rod

Technical Field

The utility model belongs to coal mining machinery tool field relates to the drilling rod, especially relates to a many arriss of welding formula lead to cable drilling rod.

Background

At present, drill rods for underground drilling construction of coal mines are various in forms, mainly comprise a round drill rod, a spiral drill rod, a triangular drill rod and the like, the deslagging gap of the round drill rod is too small, the spiral drill rod consumes too large torque of a drilling machine, and the triangular drill rod cannot lead out coal cinder when the drill is clamped, so that deep hole drilling cannot be realized.

The published Chinese utility model patent "heterotypic many arriss grooving drilling rod", patent publication No. CN101566049A, carved the discontinuous helicla flute on ordinary many arriss drilling rod surface, utilized the edge of drilling rod to stir the buggy at the bottom of the hole, utilized the supplementary row's of sediment of discontinuous helicla flute, obtained good effect in the drilling construction in the pit of colliery. However, the special-shaped grooved drill rod is of a split structure, and the joints at the two ends of the rod body are inserted into the rod body in an interference fit manner or are welded together in a friction manner. Through production and the actual use contrast discovery, the drilling rod manufacturing procedure of split type structure is many, and production efficiency is low, and drilling rod intensity is lower, and no matter connect with the body of rod through interference fit or the split type drilling rod that friction weld mode connected, all there is the problem of hole diameter sudden change at the joint with body of rod connection position to it is poor to lead to the trafficability characteristic of fluid medium at the drilling rod hole, and there is energy loss, has reduced drilling efficiency. In addition, the section of the special-shaped multi-edge grooving drill rod is a plane, and the defects of small annular space and low powder discharge efficiency exist.

In order to solve the technical problem, people increase the annular space overflowing area by additionally arranging the cutting surface and forming edges with the annular outer wall of the drill rod body, meanwhile, a plurality of edges of the drill rod body can stir the coal powder deposited at the bottom of the hole, and then the problem of powder discharge is solved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell many arriss drilling rod exists, provide a reasonable in design, simple structure, low cost and can further improve the many arriss of welding formula of arranging the powder effect and lead to cable drilling rod.

In order to achieve the purpose, the utility model discloses a technical scheme do, the utility model provides a many arriss of welding formula lead to cable drilling rod, including the inside drilling rod body that is equipped with the circulation groove, the both ends welding of drilling rod body has the quick-witted joint that connects, drilling rod body outer wall is provided with the helicla flute, the surface of drilling rod body is provided with 3 evenly distributed's excision face, is the convex surface setting between two adjacent excision faces, the helicla flute runs through the convex surface setting, be provided with the logical groove that is provided with along drilling rod body axial on the excision face, it sets up with the helicla flute contact to lead to the groove, the helicla flute includes first helicla flute and second helicla flute, the spiro spacing of first helicla flute is greater than the spiro spacing.

Preferably, the middle part of the spiral groove is provided with a crushing bulge.

Preferably, the cross section of the through groove is semicircular.

Preferably, a central cable-passing device is arranged in the circulating groove.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a many arriss of welding formula lead to cable drilling rod through setting up the first helicla flute and the second helicla flute of different spiral shell intervals, makes to form alternately between first helicla flute and the second helicla flute, and then whole big cross section groove area, improves row's powder effect, simultaneously, the utility model discloses simple structure, processing are convenient, be fit for using widely on a large scale.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a welded multi-ribbed cabled drill rod provided in embodiment 1;

FIG. 2 is a front view of the welded multi-ribbed cabled drill pipe provided in example 1;

FIG. 3 is a sectional view of a spiral groove provided in example 1;

FIG. 4 is a cross-sectional view of the welded multi-ribbed cabled drill pipe provided in example 1;

in the above figures, 1 in the above figures, a drill rod body; 11. a circulation tank; 12. a quick-connect joint; 2. a first helical groove; 3. a second helical groove; 4. cutting off the surface; 5. a through groove; 6. crushing the bulges; 7. and a central cable passing device.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 4, this embodiment aims to provide a welded drill rod with a good powder discharge effect, and like the existing welded drill rod, the welded multi-edge cable drill rod provided in this embodiment includes a drill rod body 1 having a circulation groove 511 therein, quick-connect joints 12 are welded at two ends of the drill rod body 1, the welded drill rod has a lower processing cost compared with an integral drill rod, and a spiral groove is provided on an outer wall of the drill rod body 1, the above structure is a conventional structural design, so in this embodiment, detailed description is omitted, 3 uniformly distributed cutting surfaces 4 are provided on a surface of the drill rod body 1, so that two adjacent cutting surfaces 4 are arranged in a convex manner, more specifically, a length of a connecting line between two adjacent cutting surfaces 4 is the same as a width of the cutting surface 4, that is to equally divide the entire drill rod body 1 six times, the purpose that sets up like this, mainly make the helicla flute run through the convex surface setting, and no longer excision face 4 forms the helicla flute, the degree of depth of traditional helicla flute can be deepened on excision face 4, make the passageway of whole row powder just be the helicla flute like this, and in this embodiment, do the helicla flute and cut off the processing (do not form the helicla flute at excision face 4), like this, whole excision face 4 just forms the passageway of a run-through, and then when big buggy appears, can play broken purpose, avoid blockking up.

The main purpose of considering the helicla flute is exactly supplementary row powder, utilize the spiral to be buggy along the drilling rod discharge, and shifting up of helicla flute then can reduce row powder volume, for this reason, be provided with on excision face 4 along the drilling rod body 1 axial through groove 5 that is provided with, through groove 5 and helicla flute contact setting, the setting of leading to groove 5, it is that the part in helicla flute middle section can communicate with each other, and then when guaranteeing row powder volume, the emergence of the jam condition of big buggy has been avoided again completely, and then improve row powder efficiency. In this embodiment, in order to make the through groove 5 better communicate the spiral groove, and at the same time, the through groove 5 also plays a certain role of fixing the pulverized coal, in this embodiment, the cross section of the through groove 5 is arranged in a semicircular shape.

In order to further improve the powder discharging effect and solve the problem of blockage, for this reason, the spiral groove provided by the present embodiment includes a first spiral groove 2 and a second spiral groove 3, and the pitch of the first spiral groove 2 is greater than the pitch of the second spiral groove 3. Therefore, the first spiral groove 2 and the second spiral groove 3 are crossed on different convex surfaces, the width of the spiral groove at the crossed part is increased, certain collision is generated during the rising process of coal powder, and the problem of blockage is avoided.

In order to further solve the problem of jam, in this embodiment, be provided with broken arch 6 at the middle part of helicla flute, in this embodiment, broken arch 6 is whole to be the setting of triangle-shaped, it sets up along the central line symmetry of helicla flute, in this embodiment, broken arch 6 is only seen from the cross-section, it is at the helicla flute course of working, one shot forming, the broken sand grip of more confirming, broken arch 6's setting utilizes the middle-end of the helicla flute of excision face 4, make it be favorable to further broken the buggy, avoid the emergence of jam, improve row's powder effect.

In order to output the hole bottom signal accurately in real time, a central cable passing device 6 is provided in the circulation groove 511. The central cable device 6 is used as a hole bottom inclination measuring signal transmission device and can accurately output a hole bottom signal in real time.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a many arriss of welded formula lead to cable drilling rod, includes the inside drilling rod body that is equipped with the circulation groove, the both ends welding of drilling rod body has the quick-operation joint, drilling rod body outer wall is provided with the helicla flute, its characterized in that, the surface of drilling rod body is provided with 3 evenly distributed's excision face, is the convex surface setting between two adjacent excision faces, the helicla flute runs through the convex surface setting, be provided with the logical groove that is provided with along drilling rod body axial on the excision face, it sets up with the helicla flute contact to lead to the groove, the helicla flute includes first helicla flute and second helicla flute, the spiral pitch of first helicla flute is greater than the spiral.

2. The welded-type multi-ribbed cabled drill rod according to claim 1, characterized in that a breaking protrusion is provided in the middle of the spiral groove.

3. The welded multi-ribbed cabled drill rod according to claim 2, characterized in that said through slots are semicircular in section.

4. The welded multi-ribbed cabled drill pipe according to claim 3, characterized in that a central cable-passing means is provided in the flow-through channel.