CN215409972U

CN215409972U - Rotary drilling rig and damping ring thereof

Info

Publication number: CN215409972U
Application number: CN202120582318.0U
Authority: CN
Inventors: 位硕; 杨志权
Original assignee: Beijing Sany Intelligent Technology Co Ltd
Current assignee: Beijing Sany Intelligent Technology Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2022-01-04
Anticipated expiration: 2031-03-22

Abstract

The utility model provides a rotary drilling rig and a damping ring thereof, wherein the damping ring of the rotary drilling rig comprises: the annular body comprises a plurality of arc-shaped sections which are connected end to end; and the fasteners are arranged at the joints of the adjacent arc-shaped sections, and the arc-shaped sections are connected together through the fasteners. The technical scheme of the utility model solves the problem that the rotary drilling rig in the prior art is inconvenient to operate when the damping rubber pad is replaced.

Description

Rotary drilling rig and damping ring thereof

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a rotary drilling rig and a damping ring thereof.

Background

The rotary drilling rig is a commonly used hole forming construction engineering machine. The existing rotary drilling rig generally uses a mechanical lock drill rod structure with a plurality of layers of drill rods with adjustable lengths which are sleeved layer by layer and clamped with each other because of different construction conditions. When the drill rod works, the gravity of the outer layer rod is transmitted to the damping seat through the damping spring or the damping rubber pad. If the phenomenon of 'hitting the rod' occurs, the outer-layer rod hits the shock absorption seat under the action of self weight, the shock absorption seat can be impacted axially, and the shock absorption spring or the shock absorption rubber cushion can play a shock absorption role.

The damping rubber pad in the prior art is of an annular structure. The shock absorption rubber mat is a quick-wear part, when the shock absorption rubber mat is found to be damaged and needs to be replaced in the using process, the drill rod needs to be detached from the rotary drilling rig, and then the shock absorption rubber mat is withdrawn from the end part of the drill rod. Because the drilling rod is the slender pole, consequently change the shock attenuation cushion and waste time and energy, maintain inconveniently.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem of inconvenience in operation when the shock absorption rubber pad of the rotary drilling rig in the prior art is replaced, and provides the rotary drilling rig and the shock absorption ring thereof.

In order to solve the above problems, the present invention provides a damping ring of a rotary drilling rig, comprising: the annular body comprises a plurality of arc-shaped sections which are connected end to end; and the fasteners are arranged at the joints of the adjacent arc-shaped sections, and the arc-shaped sections are connected together through the fasteners.

Optionally, the damping ring further comprises a first step structure and a second step structure, the first step structure and the second step structure are respectively arranged at two ends of the arc-shaped section, the horizontal step surface of the first step structure and the horizontal step surface of the second step structure are opposite in orientation, the first step structure and the second step structure of adjacent arc-shaped sections are overlapped, and the fastening piece is arranged between the first step structure and the second step structure of adjacent arc-shaped sections.

Optionally, a first connecting hole is formed in the first step structure, a second connecting hole is formed in the second step structure, when the first step structure and the second step structure of adjacent arc-shaped sections are overlapped, the first connecting hole and the second connecting hole are aligned, and the fastener penetrates through the first connecting hole and the second connecting hole.

Optionally, the fastener comprises a connecting bolt and a connecting nut.

Optionally, the first connection hole is a countersunk hole, so that a bolt head or a connection nut of the connection bolt sinks down on the end face of the arc-shaped section.

Optionally, the second connection hole is a countersunk hole, so that a bolt head of the connection bolt or the connection nut sinks down on the end face of the arc-shaped section.

Optionally, an embedded sleeve is arranged in the first connecting hole and/or the second connecting hole.

Optionally, the arcuate segments are two.

The utility model also provides a rotary drilling rig which comprises the damping ring.

Optionally, the rotary drilling rig comprises a drill rod, a damping seat is arranged at the bottom of the drill rod, and the damping ring is sleeved outside the drill rod and arranged on the damping seat.

The utility model has the following advantages:

by utilizing the technical scheme of the utility model, the annular main body of the damping ring is formed by splicing a plurality of arc-shaped sections, and the adjacent arc-shaped sections are connected together through a fastening piece. When the damping ring needs to be replaced, the fastening piece is detached, the annular main body can be disassembled and detached from the drill rod, and when a new annular main body is installed, a plurality of arc-shaped sections are assembled through the fastening piece. Therefore, the annular main body does not need to be withdrawn from the end of the drill rod no matter the damping ring is removed or installed, and the operations of removing and installing the damping ring are greatly simplified. Therefore, the technical scheme of the utility model solves the problem that the rotary drilling rig in the prior art is inconvenient to operate when the damping rubber pad is replaced.

Drawings

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

FIG. 1 shows a schematic structural view of the shock ring of the present invention;

FIG. 2 is a schematic view of the bottom view of the cushion ring of FIG. 1;

FIG. 3 shows a cross-sectional schematic view of the shock ring of FIG. 1 (before the fasteners are installed); and

figure 4 shows a cross-sectional view of the shock ring of figure 1 (after installation of the fastener).

Description of reference numerals:

10. an annular body; 11. an arc-shaped section; 20. a fastener; 21. a connecting bolt; 22. a connecting nut; 30. a first step structure; 31. a first connection hole; 40. a second step structure; 41. and a second connection hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.

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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, the damping ring of the rotary drilling rig of the present embodiment includes an annular main body 10 and a fastening member 20. Wherein the ring-shaped body 10 comprises a plurality of arc-shaped segments 11, the plurality of arc-shaped segments 11 being connected end to end. Fasteners 20 are provided at the junctions of adjacent arcuate segments 11, and the plurality of arcuate segments 11 are joined together by the fasteners 20.

By using the technical scheme of the embodiment, the annular main body 10 of the shock absorption ring is formed by splicing a plurality of arc-shaped sections 11, and the adjacent arc-shaped sections 11 are connected together through the fastening piece 20. When the damping ring needs to be replaced, the fastening piece 20 is detached, the annular main body 10 can be disassembled and detached from the drill rod, and when a new annular main body 10 is installed, the plurality of arc-shaped sections 11 are assembled through the fastening piece 20. Therefore, the annular body 10 does not need to be withdrawn from the end of the drill rod no matter the damping ring is removed or installed, and the operations of removing and installing the damping ring are greatly simplified. Therefore, the technical scheme of the embodiment solves the problem that the pad is inconvenient to operate when the damping rubber of the rotary drilling rig in the prior art is replaced.

It should be noted that the number of the arc segments 11 in this embodiment is at least two, and the plurality of arc segments 11 are connected end to form an annular structure, i.e., the annular main body 10. The fastener 20 is used to detachably connect adjacent segments 11 together.

As shown in fig. 1 and 2, in the solution of the present embodiment, the cushion ring further includes a first step structure 30 and a second step structure 40. The first step structure 30 and the second step structure 40 are respectively arranged at two ends of the arc-shaped section 11, and the horizontal step surface of the first step structure 30 and the horizontal step surface of the second step structure 40 face oppositely. Wherein the first and second

stepped structures

30 and 40 of adjacent arcuate segments 11 overlap, the fastener 20 being disposed between the first and second

stepped structures

30 and 40 of adjacent arcuate segments 11. As can be seen in conjunction with fig. 2, the first step structure 30 and the second step structure 40 are each formed by a protrusion at an end of the arc-shaped segment 11, where "end" refers to both ends of the arc-shaped segment 11 in the circumferential direction. The first step structure 30 and the second step structure 40 are different in that a protrusion of the first step structure 30 is formed at a lower side of an end of the arc-shaped section 11 such that a horizontal step of the first step structure 30 faces upward (the direction shown in fig. 2), and a protrusion of the second step structure 40 is formed at an upper side of an end of the arc-shaped section 11 such that a horizontal step of the second step structure 40 faces downward (the direction shown in fig. 2).

As can be seen from fig. 2, when two adjacent arc segments 11 are spliced together, the first step structure 30 at the end of the first arc segment 11 overlaps with the second step structure 40 of the other arc segment 11, i.e. the horizontal step surfaces of the two step structures abut. And preferably, the horizontal step surfaces are located at the middle parts of the first step structure 30 and the second step structure 40, so that when two adjacent arc-shaped sections 11 are spliced, the two (axial direction) end surfaces of the two arc-shaped sections are flush. The first step structure 30 and the second step structure 40 are arranged to have an overlapping portion between two adjacent arc-shaped sections 11 in the horizontal direction, and the overlapping portion facilitates the arrangement of the fastener 20. The fastener can be a bolt, a screw, a bayonet lock, a buckle and other common connecting structures.

Preferably, the widths of the first step structure 30 and the second step structure 40 (along the circumferential direction of the annular main body 10) are the same, so that after the two arc-shaped sections 11 are spliced, the vertical step surfaces of the first step structure 30 and the second step structure 40 can abut against each other, thereby reducing the installation gap as much as possible.

As shown in fig. 1 and 2, in the solution of the present embodiment, a first connection hole 31 is provided on the first step structure 30, and a second connection hole 41 is provided on the second step structure 40. Wherein, when the first step structure 30 and the second step structure 40 of adjacent arc section 11 overlap, first connecting hole 31 and second connecting hole 41 align, and fastener 20 wears to establish in first connecting hole 31 and second connecting hole 41. Specifically, the first connection hole 31 and the second connection hole 41 are both through holes, and the alignment of the first connection hole 31 and the second connection hole 41 means that the two are concentrically positioned. After the fastening member 20 is inserted into the first connecting hole 31 and the second connecting hole 41, the adjacent arc segments 11 are connected together. Accordingly, when it is necessary to detach the ring body 10, the fastener 20 may be removed from the first and second coupling holes 31 and 41. Further, the first connection holes 31 and the second connection holes 41 are both two, the two first connection holes 31 are arranged along the radial direction of the ring-shaped main body 10 at intervals, the two second connection holes 41 are arranged along the radial direction of the ring-shaped main body 10 at intervals, and the arrangement modes of the two connection holes are the same.

As shown in fig. 3 and 4, in the solution of the present embodiment, the fastener 20 includes a coupling bolt 21 and a coupling nut 22. Specifically, the attachment bolts 21 and the attachment nuts 22 facilitate the installation and removal of adjacent arcuate segments 11. When the ring main body 10 needs to be installed, the first step structure 30 and the second step structure 40 of the adjacent arc-shaped segments 11 are overlapped, and the first connection hole 31 and the second connection hole 41 are aligned. The ring body 10 is assembled by inserting the coupling bolts 21 into the first coupling holes 31 and the second coupling holes 41 and tightening the coupling nuts 22. When it is necessary to disassemble the ring body 10, the ring body 10 is disassembled by unscrewing the coupling nuts 22 and then removing the coupling bolts 21 from the first coupling holes 31 and the second coupling holes 41.

As shown in fig. 2, in the solution of the present embodiment, the first connection hole 31 is a countersunk hole, so that the bolt head of the connection bolt 21 or the connection nut 22 sinks down to the end surface of the arc-shaped segment 11. The second connection hole 41 is a countersunk hole so that a bolt head of the connection bolt 21 or the connection nut 22 is sunk to an end surface of the arc-shaped section 11. Specifically, in the present embodiment, the bolt head of the connecting bolt 21 is sunk into the countersunk head of the second connecting hole 41, and the connecting nut 22 is sunk into the countersunk head of the first connecting hole 31. Furthermore, the damping ring needs to be extruded and deformed when the rotary drilling rig works, so that a buffering effect is achieved. Therefore, the overall length of the connecting bolt 21 and the connecting nut 22 needs to be less than the thickness of the ring body 10 after installation, otherwise the ends of the connecting bolt 21 and the connecting nut 22 can play a supporting role and affect the buffering effect of the ring body 10. By sinking the bolt head and the coupling nut of the coupling bolt 21 into the countersunk head, the annular body 10 can be pressed and deformed, thereby achieving a buffering effect. Further, the difference between the overall length of the connecting bolt 21 and the connecting nut 22 after installation and the thickness of the annular body 10 is adapted to the amount of compressive deformation of the annular body 10, and therefore the depth of the countersunk head of the countersunk hole is adapted to the thickness of the bolt head, the connecting nut 22 and the amount of compressive deformation described above.

Preferably, the embedded sleeves are arranged in the first connecting hole 31 and the second connecting hole 41 in the embodiment. Specifically, since the arc-shaped segment 11 is made of a soft material (e.g., rubber), in order to ensure that the first connection hole 31 and the second connection hole 41 have a certain installation strength, it is necessary to arrange pre-embedded sleeves in the first connection hole 31 and the second connection hole 41. Further, the first connection hole 31 and the second connection hole 41 are both countersunk holes, and thus the pre-buried sleeve is disposed at an upper half section of the fine hole portion of the countersunk hole. The pre-buried sleeves are arranged so that the pre-buried sleeves in the first connecting hole 31 and the second connecting hole 41 do not contact with each other, when the annular main body 10 is pressed, the middle part of the annular main body can be extruded and deformed (namely, the two pre-buried sleeves are prevented from contacting with each other to achieve a supporting effect), and a buffering effect is guaranteed.

Preferably, the number of the arc segments 11 in this embodiment is two. Both arc-shaped sections 11 are of a semi-circular configuration. Of course, the number of the arc segments 11 can be more than two, and the angle of the arc segments 11 in the circumferential direction can be adjusted according to actual needs.

The embodiment also provides a rotary drilling rig which comprises the damping ring. Furthermore, the rotary drilling rig comprises a drill rod, a damping seat is arranged at the bottom of the drill rod, and a damping ring is sleeved outside the drill rod and arranged on the damping seat. Specifically, the drill rod comprises an inner rod and an outer rod, and the shock absorption seat is arranged on the inner rod. The damping ring is sleeved on the inner layer rod, and two end faces of the damping ring are respectively abutted against the bottom of the outer layer rod and the damping seat. When the drill rod works, the pressure between the inner layer rod and the outer layer rod is buffered through the damping ring.

Further, the damping rings are stacked, and when the damping rings are disassembled, the damping rings are staggered by a certain distance along the circumferential direction, so that the first connecting hole 31 and the second connecting hole 41 on the ring-shaped main body 10 are exposed, and then the connecting bolt 21 and the connecting nut 22 are disassembled by an external tool (such as a wrench), so that the ring-shaped main body 10 can be disassembled.

According to the structure, the damping ring in the embodiment has the following advantages:

1. the damping ring is in a two-half structure, so that the function of quick replacement when the damping ring is damaged is realized;

2. through the quick replacement with two semi-structure damping rings, reached convenient maintenance, the beneficial effect of save time cost.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. The utility model provides a shock ring of rotary drilling rig which characterized in that includes:

an annular body (10), the annular body (10) comprising a plurality of arcuate segments (11), the plurality of arcuate segments (11) being connected end to end;

a fastener (20) disposed at a junction of adjacent arc segments (11), a plurality of the arc segments (11) being connected together by the fastener (20),

the shock absorption ring further comprises a first step structure (30) and a second step structure (40), the first step structure (30) and the second step structure (40) are respectively arranged at two ends of the arc-shaped section (11), the horizontal step surfaces of the first step structure (30) and the second step structure (40) are opposite in direction,

wherein the first and second step structures (30, 40) of adjacent arcuate segments (11) overlap, the fastener (20) being disposed between the first and second step structures (30, 40) of adjacent arcuate segments (11).

2. The cushion ring according to claim 1, wherein a first connecting hole (31) is formed in the first step structure (30), and a second connecting hole (41) is formed in the second step structure (40), wherein when the first step structure (30) and the second step structure (40) of the adjacent arc-shaped segments (11) are overlapped, the first connecting hole (31) and the second connecting hole (41) are aligned, and the fastening member (20) is inserted into the first connecting hole (31) and the second connecting hole (41).

3. The shock ring as claimed in claim 2, characterized in that the fastening (20) comprises a connecting bolt (21) and a connecting nut (22).

4. The shock ring according to claim 3, characterized in that the first connection hole (31) is a counter-sunk hole, so that the bolt head of the connection bolt (21) or the connection nut (22) sinks down to the end face of the arc-shaped section (11).

5. The shock ring according to claim 3, characterized in that the second connection hole (41) is a countersunk hole to allow the bolt head of the connection bolt (21) or the connection nut (22) to sink down to the end face of the arc-shaped section (11).

6. The shock ring as claimed in claim 2, characterized in that pre-embedded sleeves are provided in the first connection holes (31) and/or the second connection holes (41).

7. The shock absorbing ring according to claim 1, characterized in that said arc segments (11) are two.

8. A rotary drilling rig, characterized by comprising a shock ring according to any one of claims 1 to 7.

9. The rotary drilling rig according to claim 8, wherein the rotary drilling rig comprises a drill rod, a shock absorption seat is arranged at the bottom of the drill rod, and the shock absorption ring is sleeved outside the drill rod and arranged on the shock absorption seat.