CN214886838U

CN214886838U - Drill rod guiding device for assisting impact rotary rock drill to complete grooving operation

Info

Publication number: CN214886838U
Application number: CN202121165000.9U
Authority: CN
Inventors: 孙金山; 赵国堂; 贾永胜; 答治华; 姚颖康; 刘昌邦
Original assignee: Jianghan University
Current assignee: Jianghan University
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-11-26
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a supplementary drilling rod guider who strikes rotation rock drill and accomplish fluting operation relates to geotechnical engineering machinery, including can insert the guiding orientation pipe in the shaping drilling, cover just restrict drilling rod radial swing's drilling rod limit sleeve, the more than 2 metal connecting blocks who connects guiding orientation pipe and drilling rod limit sleeve outside the drilling rod of rock drill. Supplementary strike rotary rock drill and accomplish drilling rod guider of fluting operation, install on the drilling rod and the impacter of ordinary impact rotary rock drill, can show the horizontal hunting that reduces drill bit and drilling rod, control creeps into the direction, make the axial and the existing drilling parallel of new drilling, through boring a plurality of mutual intercommunications and the parallel drilling of axis and form a slot, the problem that the deep trouth is difficult to the shaping in hard rock or the concrete has effectively been solved, can exert percussion drilling machine efficient, strong adaptability, the big advantage of drilling depth, the excavation shaping operation of accomplishing hard rock deep trouth.

Description

Drill rod guiding device for assisting impact rotary rock drill to complete grooving operation

Technical Field

The utility model relates to a geotechnical engineering machinery especially relates to a supplementary drilling rod guider who strikes rotation rock drill and accomplish fluting operation.

Background

In geotechnical engineering, it is often necessary to dig trenches in rock or concrete, or to cut a wide range of rock or concrete using the excavated trenches. The traditional mechanical grooving and cutting methods such as a groove milling machine, a disc saw, a diamond rope saw and the like have poor applicability and construction efficiency in hard rock, and the drilling and blasting method is difficult to control the grooving width and the groove wall forming quality. Meanwhile, the above method also has difficulty in forming a trench ten meters deep in the rock at a time.

The impact rotary rock drill can form a drill hole with a depth of several meters to tens of meters in rock and concrete by impacting the rock through the drill rod and the drill bit, but the drill rod swings due to bearing axial impact load and often deflects towards the direction of easy breaking when encountering materials with uneven hardness, so that the traditional impact rotary rock drill is difficult to be used for forming a groove in the rock or concrete.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of relevant product among the prior art, the utility model provides a supplementary drilling rod guider who strikes rotation rock drill and accomplish the fluting operation solves the problem of traditional impact rotation rock drill grooving difficulty in rock or concrete.

The utility model provides a supplementary drilling rod guider who strikes rotation rock drill and accomplish fluting operation, include: the drill rod limiting sleeve is sleeved outside a drill rod of the rock drill and used for limiting the radial swing of the drill rod, and more than 2 metal connecting blocks for connecting the guide positioning pipe and the drill rod limiting sleeve; the guide positioning tube consists of two long-strip-shaped metal plates with arc-shaped cross sections, a middle metal rod and a miniature hydraulic jack for connecting the middle metal rod and the arc-shaped metal plates; the drill rod limiting sleeve is composed of a metal disc fixed on a drill rod, a metal cylinder sleeved outside the drill rod and the impactor and coaxial with the drill rod, thrust bearings located at the rear two ends of the metal cylinder and sleeved on the drill rod, and more than 2 rolling bearings located inside the metal cylinder, with outer rings fixed on the metal cylinder and inner rings sleeved on the impactor.

In some embodiments of the present invention, the arrangement sequence of the guiding and positioning tube components from inside to outside is: the hydraulic jack comprises a middle metal rod, a miniature hydraulic jack and an arc-shaped section metal plate, wherein the axis of the miniature hydraulic jack is vertical to the long axis direction of the middle metal rod and the arc-shaped section metal plate.

In some embodiments of the present invention, the drill rod limiting sleeve is arranged along the axial direction of the drill rod in the following order: metal disc, thrust bearing, the metal drum of embedded antifriction bearing.

In certain embodiments of the present invention, the length of the metal connecting block connecting the guide and positioning tube and the drill rod stop sleeve makes the formed bore hole tangent or tangent to the intended formed bore hole.

In certain embodiments of the present invention, the arc-section metal plate has a length of not less than 1 m.

Compared with the prior art, the utility model discloses there is following advantage:

the embodiment of the utility model provides a supplementary impact rotary rock drill accomplishes drilling rod guider of fluting operation, install on ordinary impact rotary rock drill's drilling rod and impacter, can show the horizontal hunting that reduces drill bit and drilling rod, control drilling direction makes the axial of new drilling (planning to take shape drilling) parallel with existing drilling (the drilling that takes shape), and through boring a plurality of mutual intercommunications and the parallel drilling of axis and form a slot, effectively solved the problem that the deep trouth is difficult to take shape in hard rock or the concrete, the utility model discloses can exert the impacted style rig efficiently, strong adaptability, the big advantage of drilling depth, the excavation of accomplishing the deep trouth of hard rock takes shape the operation.

Drawings

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

FIG. 1 is a schematic longitudinal cross-sectional view of a drill rod guide for an auxiliary percussive rotary rock drill to perform a grooving operation according to the present invention;

FIG. 2 is a schematic cross-sectional view in the A-B direction of a drill rod guide assembly of the present invention for assisting in the completion of a grooving operation in a percussive rotary rock drill;

FIG. 3 is a schematic longitudinal cross-sectional view of the present invention as installed on a down-the-hole drill impactor and drill pipe;

fig. 4 is a schematic cross-sectional view in the direction a-B of the present invention when installed on a down-the-hole drill impactor and drill pipe.

Description of reference numerals:

1. a metal plate having an arc-shaped cross section; 2. a middle metal rod; 3. a micro hydraulic jack; 4. a metal connecting block; 5. a metal disc; 6. a thrust bearing; 7. a rolling bearing; 8. a metal cylinder; 9. a formed bore; 10. drilling holes to be formed; 11. a drill stem; 12. an impactor; 13. a drill bit.

Detailed Description

In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. It is to be understood that the embodiments described are merely exemplary of the invention, and that no limitations are intended to the details of construction or design herein shown. The present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of providing a more thorough understanding of the present disclosure.

Referring to fig. 1-4, the drill rod guide device for assisting the impact rotary rock drill to complete the grooving operation comprises a guide positioning tube capable of being inserted into a formed drill hole 9, a drill rod limiting sleeve sleeved outside a drill rod 11 of the rock drill and limiting the drill rod 11 to swing radially, and more than 2 metal connecting blocks 4 for connecting the guide positioning tube and the drill rod limiting sleeve, wherein the drill rod limiting sleeve is opposite to a to-be-formed drill hole 10.

The guiding and positioning tube is composed of two long arc-shaped section metal plates 1 with the length not less than 1m, a middle metal rod 2 and a micro hydraulic jack 3 for connecting the middle metal rod 2 and the arc-shaped metal plates 1. The arrangement sequence of the components of the guiding and positioning pipe from inside to outside is as follows: the hydraulic lifting device comprises a middle metal rod 2, a miniature hydraulic jack 3 and an arc-shaped section metal plate 1, wherein the axis of the miniature hydraulic jack 3 is vertical to the long axis direction of the middle metal rod 2 and the arc-shaped section metal plate 1.

The drill rod limiting sleeve is composed of a metal disc 5 fixed on a drill rod 11, a metal cylinder 8 which is sleeved outside the drill rod 11 and the impactor 12 and is coaxial with the drill rod 11, thrust bearings 6 which are positioned at the rear two ends of the metal cylinder 8 and sleeved on the drill rod 11, more than 2 rolling bearings 7 which are positioned inside the metal cylinder 8, the outer rings of which are fixed on the metal cylinder 8 and the inner rings of which are sleeved on the impactor 12. The arrangement sequence of the drill rod limiting sleeve along the axial direction of the drill rod is as follows: a metal disc 5, a thrust bearing 6 and a metal cylinder 8 with an embedded rolling bearing 7. The end of the drill rod 11 is provided with a drill bit 13, the drill bit 13 being located outside said metal cylinder 8.

In the embodiment of the present invention, the length of the metal connecting block 4 connecting the guiding and positioning tube and the drill rod limiting sleeve makes the formed drill hole 9 tangent or cut the to-be-formed drill hole 10.

The embodiment of the utility model provides a supplementary drilling rod guider who strikes rotary rock drill and accomplish the fluting operation installs on drilling rod 11 and impacter 12 of ordinary impact rotary rock drill, can show the horizontal hunting that reduces drill bit 13 and drilling rod 11, and control drilling direction makes the axial of new drilling (planning to take shape drilling 10) parallel with existing drilling (the drilling 9 that takes shape), and through boring a plurality of mutual intercommunication and the parallel drilling of axis and form a slot, the problem that the deep trouth is difficult to take shape in hard rock or the concrete has effectively been solved, the utility model discloses can exert the advantage that impacted style rig is efficient, strong adaptability, the drilling depth is big, accomplish the excavation shaping operation in the deep trouth of hard rock.

Those not described in detail in this specification are within the skill of the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent replacements may be made for some of the technical features of the embodiments. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. A drill rod guide device for assisting an impact rotary rock drill in completing grooving operation is characterized by comprising: the drill rod limiting sleeve is sleeved outside a drill rod of the rock drill and used for limiting the radial swing of the drill rod, and more than 2 metal connecting blocks for connecting the guide positioning pipe and the drill rod limiting sleeve; the guide positioning tube consists of two long-strip-shaped metal plates with arc-shaped cross sections, a middle metal rod and a miniature hydraulic jack for connecting the middle metal rod and the arc-shaped metal plates; the drill rod limiting sleeve is composed of a metal disc fixed on a drill rod, a metal cylinder sleeved outside the drill rod and the impactor and coaxial with the drill rod, thrust bearings located at the rear two ends of the metal cylinder and sleeved on the drill rod, and more than 2 rolling bearings located inside the metal cylinder, with outer rings fixed on the metal cylinder and inner rings sleeved on the impactor.

2. A drill rod guide for assisting in percussive rotary rock drilling machine to perform a grooving operation as set forth in claim 1 wherein: the arrangement sequence of the components of the guiding and positioning pipe from inside to outside is as follows: the hydraulic jack comprises a middle metal rod, a miniature hydraulic jack and an arc-shaped section metal plate, wherein the axis of the miniature hydraulic jack is vertical to the long axis direction of the middle metal rod and the arc-shaped section metal plate.

3. A drill rod guide for assisting in percussive rotary rock drilling machine to perform a grooving operation as set forth in claim 1 wherein: the arrangement sequence of the drill rod limiting sleeve along the axial direction of the drill rod is as follows: metal disc, thrust bearing, the metal drum of embedded antifriction bearing.

4. A drill rod guide for assisting in percussive rotary rock drilling machine to perform a grooving operation as set forth in claim 1 wherein: the length of the metal connecting block for connecting the guide positioning pipe and the drill rod limiting sleeve pipe ensures that the formed drill hole and the drill hole to be formed are tangent or cut.

5. A drill rod guide for assisting in percussive rotary rock drilling machine to perform a grooving operation as set forth in claim 1 wherein: the length of the metal plate with the arc-shaped section is not less than 1 m.