CN111894468A

CN111894468A - Reamer for plain geological exploration

Info

Publication number: CN111894468A
Application number: CN202010755238.0A
Authority: CN
Inventors: 傅宏易
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-11-06

Abstract

The invention discloses a reamer for plain geological exploration, which comprises a drill rod, a conical head and a reaming mechanism, wherein the conical head is welded at the bottom end of the drill rod, a first sleeve is welded above the conical head on the drill rod, a second sleeve is sleeved above the first sleeve on the drill rod, a limiting nut is in threaded connection above the second sleeve on the drill rod, and the reaming mechanism is rotatably connected between the first sleeve and the second sleeve and outside the drill rod. According to the reamer for plain geological exploration, the reaming mechanism is rotatably connected to the first sleeve and the second sleeve, and when the reamer is used, the limiting nut is rotated to drive the limiting nut to move up and down, so that the second sleeve is pushed to move towards the first sleeve or to be far away from the first sleeve, the expansion range of the reaming mechanism can be changed, the inner diameter of the reamer is changed, and the practical effect is improved in a maximized mode.

Description

Reamer for plain geological exploration

Technical Field

The invention relates to the technical field of reamers, in particular to a reamer for plain geological exploration.

Background

The drill bit and the reamer are the same but play different roles, and the drill bit and the reamer both use the cutting edge for drilling; the drill drills a bottom hole, the reamer enlarges the bottom hole drilled by the drill, the reamer is generally used for semi-finishing or final machining of the hole, is used for preprocessing before reaming or grinding or enlarging a blank hole, has 3 to 4 blade bands and no chisel edge, the change of a front angle and a rear angle along a cutting edge is small, the guiding effect is good during machining, the axial resistance is small, and the cutting condition is superior to that of drilling.

At present, the existing reamer for plain geological exploration only can expand a hole into a hole with a specified inner diameter by a single reamer, the inner diameter in the reamer is not adjustable, so that the applicability of the reamer is poor, and in the using process, the existing reamer needs to be carried with reamers with different reamer inner diameters and then is installed and used, so that the requirements of users cannot be met.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an underreamer for plain geological exploration.

In order to achieve the purpose, the invention adopts the following technical scheme: a reamer for plain geological exploration comprises a drill rod, a conical head and a reamer mechanism;

a conical head is welded at the bottom end of the drill rod, a first sleeve is welded above the conical head on the drill rod, a second sleeve is sleeved above the first sleeve on the drill rod, a limiting nut is connected with the drill rod in a threaded manner above the second sleeve, and a hole expanding mechanism is rotatably connected between the first sleeve and the second sleeve and positioned on the outer side of the drill rod;

the reaming mechanism comprises a first reaming plate and a second reaming plate, the first reaming plate and the second reaming plate are connected in a rotating mode through a rotating shaft, and reaming teeth are arranged on the outer surface wall of the first reaming plate and the outer surface wall of the second reaming plate.

Preferably, a first support rod is rotatably connected between the first hole expanding plate and the drill rod.

Preferably, a second support rod is rotatably connected between the second hole expanding plate and the drill rod.

Preferably, six reaming mechanisms are arranged, the six reaming mechanisms are annularly distributed on the outer side of the drill rod, and the distance between every two adjacent reaming mechanisms is equal.

Preferably, the first hole expansion plate and the hole expansion teeth are of a pouring integrated structure, and the second hole expansion plate and the hole expansion teeth are of a pouring integrated structure.

Preferably, the second sleeve is welded with a sliding block, and the sliding block is in sliding connection with an annular sliding groove formed in the outer surface wall of the limiting nut.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the reamer for plain geological exploration, the reaming mechanism is rotatably connected to the first sleeve and the second sleeve, and when the reamer is used, the limiting nut is rotated to drive the limiting nut to move up and down, so that the second sleeve is pushed to move towards the first sleeve or to be far away from the first sleeve, the expansion range of the reaming mechanism can be changed, the inner diameter of the reamer is changed, and the practical effect is improved in a maximized mode.

2. According to the reamer for plain geological exploration, the reaming mechanism consists of the first reaming plate and the second reaming plate, the first supporting rod and the second supporting rod are respectively and rotatably connected between the first reaming plate and the drill rod and between the second reaming plate and the drill rod, the first reaming plate and the second reaming plate can be supported in an auxiliary mode through the arrangement of the first supporting rod and the second supporting rod, the strength of the first reaming plate and the strength of the second reaming plate are effectively improved, and the service life of the reamer is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a reamer for plain geological exploration according to the present invention;

fig. 2 is a schematic structural diagram of a reamer mechanism of a reamer for plain geological exploration according to the present invention;

FIG. 3 is a schematic cross-sectional view of an underreamer according to the present invention for use in plain geological exploration;

fig. 4 is a schematic diagram of a connection structure between a second casing and a stop nut of the reamer for plain geological exploration according to the present invention.

Illustration of the drawings:

1. a drill stem; 2. a conical head; 3. a first sleeve; 4. a hole expanding mechanism; 41. reaming teeth; 42. a first expanded hole plate; 43. a rotating shaft; 44. a second expanded hole plate; 5. a second sleeve; 51. a slider; 6. a limit nut; 61. an annular chute; 7. a first support bar; 8. a second support bar.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

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, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, a reamer for use in plain geological exploration comprises a drill stem 1, a conical head 2 and a reamer mechanism 4;

the bottom end of a drill rod 1 is welded with a conical head 2, a first sleeve 3 is welded above the conical head 2 on the drill rod 1, a second sleeve 5 is sleeved above the first sleeve 3 on the drill rod 1, a limit nut 6 is in threaded connection above the second sleeve 5 on the drill rod 1, and a hole expanding mechanism 4 is rotatably connected between the first sleeve 3 and the second sleeve 5 and outside the drill rod 1;

the reaming mechanism 4 comprises a first reaming plate 42 and a second reaming plate 44, the first reaming plate 42 and the second reaming plate 44 are rotatably connected through a rotating shaft 43, and the outer surface walls of the first reaming plate 42 and the second reaming plate 44 are provided with reaming teeth 41.

A first supporting rod 7 is rotatably connected between the first hole expanding plate 42 and the drill rod 1, and a second supporting rod 8 is rotatably connected between the second hole expanding plate 44 and the drill rod 1.

Six hole expanding mechanisms 4 are arranged, the six hole expanding mechanisms 4 are distributed on the outer side of the drill rod 1 in an annular mode, and the distance between every two adjacent hole expanding mechanisms 4 is equal.

The first hole enlarging plate 42 and the hole enlarging teeth 41 are of a casting integrated structure, and the second hole enlarging plate 44 and the hole enlarging teeth 41 are of a casting integrated structure.

The second sleeve 5 is welded with a slide block 51, and the slide block 51 is connected with an annular sliding groove 61 arranged on the outer surface wall of the limit nut 6 in a sliding manner.

The working principle is as follows: this a reamer for plain geological exploration uses, at first, stop nut 6 can be rotated, drive stop nut 6 and reciprocate on drilling rod 1, it reciprocates to drive second sleeve 5 through stop nut 6, can adjust the interval between first sleeve 3 and the second sleeve 5 this moment, thereby adjust the expansion range of reaming mechanism 4, be convenient for expand out the hole of different internal diameters through reaming mechanism 4 and use, secondly, rotate respectively between first reaming board 42 and second reaming board 44 and the drilling rod 1 and be connected with first bracing piece 7 and second bracing piece 8, through first bracing piece 7 and second bracing piece 8, can support whole reaming mechanism 4, improve its intensity, increase its life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A reamer for plain geological exploration is characterized by comprising a drill rod (1), a conical head (2) and a reamer mechanism (4);

the drill rod structure is characterized in that a conical head (2) is welded at the bottom end of the drill rod (1), a first sleeve (3) is welded above the conical head (2) on the drill rod (1), a second sleeve (5) is sleeved above the first sleeve (3) on the drill rod (1), a limiting nut (6) is in threaded connection above the second sleeve (5) on the drill rod (1), and a hole expanding mechanism (4) is rotatably connected between the first sleeve (3) and the second sleeve (5) and outside the drill rod (1);

reamer mechanism (4) include first hole enlargement board (42) and second hole enlargement board (44), first hole enlargement board (42) and second hole enlargement board (44) are connected through pivot (43) rotation, be provided with reamer tooth (41) on first hole enlargement board (42) and second hole enlargement board (44) the exterior wall.

2. A reamer for use in plain geological exploration, according to claim 1, characterized in that a first support rod (7) is rotatably connected between said first reamer plate (42) and drill rod (1).

3. A reamer for use in plain geological exploration, according to claim 1, characterized in that a second support rod (8) is rotatably connected between said second reamer plate (44) and the drill stem (1).

4. A reamer for use in plain geological exploration, according to claim 1, characterized in that said reamer means (4) are provided with six, and said six reamer means (4) are annularly distributed on the outer side of the drill rod (1), and the spacing between two adjacent reamer means (4) is equal.

5. A reamer for use in plain geological exploration, according to claim 1, characterized in that said first reamer plate (42) and said reamer teeth (41) are of cast integral construction, said second reamer plate (44) and said reamer teeth (41) being of cast integral construction.

6. The reamer for plain geological exploration according to claim 1, characterized in that the second sleeve (5) is welded with a sliding block (51), and the sliding block (51) is connected with an annular sliding groove (61) arranged on the outer surface wall of the stop nut (6) in a sliding manner.