CN208870542U - Double-wall drill pipe and drilling machine - Google Patents
Double-wall drill pipe and drilling machine Download PDFInfo
- Publication number
- CN208870542U CN208870542U CN201821557535.9U CN201821557535U CN208870542U CN 208870542 U CN208870542 U CN 208870542U CN 201821557535 U CN201821557535 U CN 201821557535U CN 208870542 U CN208870542 U CN 208870542U
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- China
- Prior art keywords
- drill pipe
- drilling rod
- double
- interior
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 133
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 13
- 244000144985 peep Species 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of double-wall drill pipe and drilling machines.Double-wall drill pipe includes: outer drilling rod, including axially extending bore and the wall surface through-hole on the wall surface for being set to outer drilling rod to be connected to outside double-wall drill pipe with axially extending bore；Interior drilling rod, is rotatablely arranged in axially extending bore；And drill rod sealing device, it is set to the gap sealed between outer drilling rod and interior drilling rod between outer drilling rod and interior drilling rod, drill rod sealing device is presented axially in driving end and is connected between the communication port of axially extending bore with wall surface through-hole, interior drilling rod includes the deflector hole extended from drilling end to driving end, and wall surface through-hole is connected to deflector hole.Drilling machine includes double-wall drill pipe.The functional reliability of double-wall drill pipe can be improved in the utility model.
Description
Technical field
The utility model relates to engineering machinery field, in particular to a kind of double-wall drill pipe and drilling machine.
Background technique
The drilling machine using double-wall drill pipe drilling has been proposed in the prior art, which may be implemented fast drilling, but
High failure rate in the drilling process of this drilling machine, service life are short, it is difficult to meet horizontal directional drilling special construction demand.
Utility model content
The purpose of this utility model is to provide a kind of double-wall drill pipe and with the drilling machine of the double-wall drill pipe.
The utility model first aspect provides a kind of double-wall drill pipe, comprising:
Outer drilling rod, including axially extending bore on the wall surface for being set to the outer drilling rod to be connected to outside the double-wall drill pipe and
The wall surface through-hole of the axially extending bore；
Interior drilling rod is rotatablely arranged in the axially extending bore；With
Drill rod sealing device is set between the outer drilling rod and the interior drilling rod to seal the outer drilling rod and described interior
Gap between drilling rod, the drill rod sealing device be presented axially in the double-wall drill pipe driving end and the wall surface through-hole
It is connected between the communication port of the axially extending bore, the interior drilling rod includes extending from the drilling end of the double-wall drill pipe to driving end
Deflector hole, the wall surface through-hole is connected to the deflector hole.
In some embodiments, the outer drilling rod includes positioned at the outer propeller section at the driving end and positioned at the drilling
The outer drill pipe section at end, the drill rod sealing device are set between the outer propeller section and the interior drilling rod, and the wall surface is logical
Hole is set in the outer drill pipe section.
In some embodiments, the outer drilling rod includes positioned at the outer propeller section at the driving end and positioned at the drilling
The outer drill pipe section at end, the outer propeller section are threadedly coupled with the outer drill pipe section.
In some embodiments, the interior drilling rod includes positioned at the intermediate solid drive shaft section at the driving end and positioned at the drilling
The interior drill pipe section at end, the drill rod sealing device are set between the intermediate solid drive shaft section and the outer drilling rod, the deflector hole
It is set to the interior drill pipe section.
In some embodiments, the interior drilling rod includes positioned at the intermediate solid drive shaft section at the driving end and positioned at the drilling
The interior drill pipe section at end, the intermediate solid drive shaft section and the interior drill pipe section grafting.
In some embodiments, the double-wall drill pipe includes first bearing and second bearing, the first bearing and described
Second bearing is set between the outer drilling rod and the interior drilling rod and is located at the driving end.
In some embodiments, the driving end of the outer drilling rod is provided with for being the first bearing and second axis
Hold the oil duct of injection lubricating oil.
In some embodiments, the double-wall drill pipe includes flange, and the flange is fixedly connected on the drive of the outer drilling rod
Moved end end face and the driving end end face for being connected to the interior drilling rod, the periphery of the interior drilling rod include the axis positioned at the drilling end
Shoulder, the axially extending bore of the outer drilling rod include the First terrace positioned at the drilling end, the shaft shoulder and the first step
Face cooperation.
In some embodiments, the deflector hole include the axial blind hole being set in the interior drilling rod and with the axial direction
The radial communication hole of blind hole connection, the wall surface through-hole are connected to by the radial communication hole with the axial blind hole.
In some embodiments, the drill rod sealing device include the first sealing structure and with the first sealing structure axis
To spaced second seals structure, the outer drilling rod include be set on its wall surface to be connected to outside the double-wall drill pipe and
The peep hole of the axially extending bore, it is close that the communication port that the peep hole is connected to the axially extending bore is presented axially in described first
Between seal structure and the second seals structure.
In some embodiments, the drill rod sealing device includes being set to first sealing structure and described second close
Retaining ring between seal structure is provided with the perforation being connected to the peep hole on the retaining ring.
The utility model second aspect provides a kind of drilling machine, including double described in any one of the utility model first aspect
Wall drilling rod.
Based on double-wall drill pipe provided by the utility model and drilling machine, in double-wall drill pipe operation, wall surface through-hole is as fluid
It being connect into channel with high-pressure fluid source, high-pressure fluid is injected between deflector hole and interior drilling rod and outer drilling rod by wall surface through-hole,
Drill bit is driven to realize drilling.Drill rod sealing device can prevent liquid flows upwards with influence drive end structure (such as bearing),
To improve functional reliability.In addition, the service life for driving end structure that double-wall drill pipe also can be improved and connect with double-wall drill pipe.
By the detailed description referring to the drawings to the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the double-wall drill pipe of the utility model embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that limiting zero using the words such as " first ", " second "
Part, it is only for convenient for distinguishing to corresponding components, there is no Stated otherwise such as, above-mentioned word there is no particular meaning,
Therefore it should not be understood as the limitation to scope of protection of the utility model.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
Fig. 1 is the structural schematic diagram of the double-wall drill pipe of the utility model embodiment.As shown in Figure 1, the double-walled of the embodiment
Drilling rod includes outer drilling rod 1, interior drilling rod 2 and drill rod sealing device 3.
As shown in Figure 1, outer drilling rod 1 include axially extending bore on the wall surface for being set to outer drilling rod 1 to be connected to outside double-wall drill pipe
The wall surface through-hole 12A in portion and axially extending bore.Interior drilling rod 2 is rotatablely arranged in axially extending bore.Wall surface through-hole 12A for example can be with
For radial through-hole.
Drill rod sealing device 3 is set to the gap that outer drilling rod 1 and interior drilling rod 2 are sealed between outer drilling rod 1 and interior drilling rod 2.
Drill rod sealing device 3 is presented axially in driving end (connecting with driving device, be upper end in Fig. 1) and the wall surface of double-wall drill pipe
Through-hole 12A is connected between the communication port of axially extending bore, and interior drilling rod 2 includes (being connect from the drilling end of double-wall drill pipe with drill bit, Fig. 1
In be lower end) deflector hole from axial direction to driving end that extend along, wall surface through-hole 12A is connected to deflector hole.
As shown in Figure 1, deflector hole for example may include the axial blind hole 13A and and axial blind hole being set in interior drilling rod 2
The radial communication hole 13B of 13A connection, wall surface through-hole 12A are connected to by radial communication hole 13B with axial blind hole 13A.
In double-wall drill pipe operation, wall surface through-hole 12A is connect as fluid entering channel with high-pressure fluid source, high-pressure fluid
It is injected between deflector hole and interior drilling rod 2 and outer drilling rod 1 by wall surface through-hole 12A, driving drill bit realizes drilling.Drill rod sealing device
3 prevent liquid flows upwards to influence to drive end structure (such as bearing), to improve functional reliability.In addition, also can be improved
The service life of double-wall drill pipe and the driving end structure being connect with double-wall drill pipe.
High-pressure fluid is, for example, water or mud.The drill bit connecting with double-wall drill pipe is, for example, rock bit.
As shown in Figure 1, in some embodiments, outer drilling rod 1 includes positioned at the outer propeller section 4 at driving end and positioned at drilling
The outer drill pipe section 12 at end.
Drill rod sealing device 3 is set between outer propeller section 4 and interior drilling rod 2, and wall surface through-hole 12A is set to outer drill pipe section
On 12.
In embodiment as shown in Figure 1, outer propeller section 4 is threadedly coupled with outer drill pipe section 12.The different piece of outer drilling rod 1
It is connected through a screw thread, biggish torque, push-pull effort and hole wall frictional force can be born.
As shown in Figure 1, in some embodiments, interior drilling rod 2 includes positioned at the intermediate solid drive shaft section 5 at driving end and positioned at drilling
The interior drill pipe section 13 at end.
Drill rod sealing device 3 is set between intermediate solid drive shaft section 5 and outer drilling rod 1.Deflector hole is set to interior drill pipe section 13.
As shown in Figure 1, intermediate solid drive shaft section 5 and interior 13 grafting of drill pipe section.The processing is simple for connected structure, convenient disassembly.Interior brill
2 each section of bar can for example pass through six square joint grafting.
As shown in Figure 1, double-wall drill pipe includes first bearing 7 and second bearing 8, first bearing 7 and second bearing 8 are arranged
Between outer drilling rod 1 and interior drilling rod 2 and it is located at driving end.In order to lubricate first bearing 7 and second bearing 8, first bearing 7 is improved
With the service life of second bearing 8, the driving end of outer drilling rod 1 is provided with for lubricating for first bearing 7 and the injection of second bearing 8
The oil duct 4B of oil.
In order to make to realize axially position between outer drilling rod 1 and interior drilling rod 2, double-wall drill pipe includes flange 6, and flange 6 is fixed to be connected
It is connected to the driving end end face of outer drilling rod 1 and is connected to the driving end end face of interior drilling rod 2, the periphery of interior drilling rod 2 includes being located at drilling
The shaft shoulder at end, the axially extending bore of outer drilling rod 1 include the First terrace positioned at drilling end, and the shaft shoulder and First terrace cooperate.
First bearing 7 and the setting of 8 axially spaced-apart of second bearing.In order to make 7 axially position of first bearing, as shown in Figure 1,
In some embodiments, flange 6 is connected to the end of first bearing 7, and the axially extending bore inner circumferential of outer drilling rod 1 is provided with and first bearing
7 corresponding second step faces, first bearing 7 are abutted with the second step face, thus, first bearing 7 is by flange 6 and second step
Face axial limiting.In order to make 8 axial limiting of second bearing, as shown in Figure 1, the axially extending bore inner circumferential of outer drilling rod 1 is provided with and the
The corresponding third step surface of two bearing 8, second bearing 8 are abutted close to the one end at driving end with the third step surface, second bearing
8 abut close to the one end at drilling end with drill rod sealing device 3, so that second bearing 8 is by drill rod sealing device 3 and third step surface
Axial limiting.
Flange 6 can be bolted to connection on the end face at the driving end of outer drilling rod 1.
As shown in Figure 1, drill rod sealing device 3 includes the first sealing structure 11 and sets with 11 axially spaced-apart of the first sealing structure
The second seals structure 9 set, outer drilling rod 1 include the peep hole being set on wall surface to be connected to outside double-wall drill pipe with axially extending bore
The communication port of 4A, peep hole 4A connection axially extending bore be presented axially in the first sealing structure 11 and second seals structure 9 it
Between.First sealing structure 11 and second seals structure 9 for example can be single track or multiple tracks rubber seal.Peep hole 4A is in this reality
It applies in example as radial through-hole.
In the present embodiment, the first sealing structure 11 directly contacts, therefore more easy to damage close to drilling end with high-pressure fluid.
When the first sealing structure 11 is damaged, high-pressure fluid will enter between the first sealing structure 11 and second seals structure 9, at this point,
The severity whether double-wall drill pipe leaks and leak at drilling rod sealing structure 3 can be observed by peep hole 4A, so as to
To judge whether the first sealing structure 11 is damaged and damaged condition, so as to on-call maintenance.Meanwhile second seals structure 9 can be
First sealing structure 11 prevents high-pressure fluid from entering driving end when being damaged.
As shown in Figure 1, drill rod sealing device 3 includes being set between the first sealing structure 11 and second seals structure 9
Retaining ring 10 is provided with the perforation being connected to peep hole 4A on retaining ring 10.Retaining ring 10 can guarantee that the first sealing structure 11 and second is close
The axially spaced-apart of seal structure 9, to can observe high-pressure fluid in time from peep hole 4A when being conducive to the damage of the first sealing structure 11
Leakage.
As shown in Figure 1, drill rod sealing device 3 is between second bearing 8 and the end of interior drill pipe section 13, to realize axis
To positioning.
From the above description, it can be seen that the double-wall drill pipe of the utility model embodiment is in addition to aforementioned advantage also with following excellent
At least one point: structure is simple and durable, easy to maintain, and manufacturing cost reduces, and construction efficiency improves.
The utility model embodiment also provides a kind of drilling machine, including double-wall drill pipe above-mentioned.The utility model embodiment
Drilling machine has the attendant advantages of double-wall drill pipe.
The double-wall drill pipe and drilling machine of the utility model embodiment are needed suitable for a variety of drillings, and it is fixed to be for example suitable for no-dig technique level
To drilling machine.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (12)
1. a kind of double-wall drill pipe characterized by comprising
Outer drilling rod (1), including axially extending bore on the wall surface for being set to the outer drilling rod (1) to be connected to outside the double-wall drill pipe
With the wall surface through-hole (12A) of the axially extending bore；
Interior drilling rod (2), is rotatablely arranged in the axially extending bore；With
Drill rod sealing device (3) is set between the outer drilling rod (1) and the interior drilling rod (2) to seal the outer drilling rod (1)
Gap between the interior drilling rod (2), the drill rod sealing device (3) are presented axially in the driving end of the double-wall drill pipe
It is connected between the communication port of the axially extending bore with the wall surface through-hole (12A), the interior drilling rod (2) includes boring from the double-walled
The deflector hole that the drilling end of bar extends to the driving end, the wall surface through-hole (12A) are connected to the deflector hole.
2. double-wall drill pipe as described in claim 1, which is characterized in that the outer drilling rod (1) includes being located at the driving end
Outer propeller section (4) and outer drill pipe section (12) positioned at the drilling end, the drill rod sealing device (3) is set to the unofficial biography
Between moving axis section (4) and the interior drilling rod (2), the wall surface through-hole (12A) is set on the outer drill pipe section (12).
3. double-wall drill pipe as described in claim 1, which is characterized in that the outer drilling rod (1) includes being located at the driving end
Outer propeller section (4) and outer drill pipe section (12) positioned at the drilling end, the outer propeller section (4) and the outer drill pipe section
(12) it is threadedly coupled.
4. double-wall drill pipe as described in claim 1, which is characterized in that the interior drilling rod (2) includes being located at the driving end
Intermediate solid drive shaft section (5) and interior drill pipe section (13) positioned at the drilling end, the drill rod sealing device (3) is set to the interior biography
Between moving axis section (5) and the outer drilling rod (1), the deflector hole is set to the interior drill pipe section (13).
5. double-wall drill pipe as described in claim 1, which is characterized in that the interior drilling rod (2) includes being located at the driving end
Intermediate solid drive shaft section (5) and interior drill pipe section (13) positioned at the drilling end, the intermediate solid drive shaft section (5) and the interior drill pipe section
(13) grafting.
6. double-wall drill pipe as described in claim 1, which is characterized in that the double-wall drill pipe includes first bearing (7) and second
Bearing (8), the first bearing (7) and the second bearing (8) be set to the outer drilling rod (1) and the interior drilling rod (2) it
Between and be located at the driving end.
7. double-wall drill pipe as claimed in claim 6, which is characterized in that the driving end of the outer drilling rod (1) be provided with for for
The oil duct (4B) of the first bearing (7) and the second bearing (8) injection lubricating oil.
8. double-wall drill pipe as claimed in claim 6, which is characterized in that the double-wall drill pipe includes flange (6), the flange
(6) it is fixedly connected on the driving end end face of the outer drilling rod (1) and is connected to the driving end end face of the interior drilling rod (2), it is described
The periphery of interior drilling rod (2) includes the shaft shoulder positioned at the drilling end, and the axially extending bore of the outer drilling rod (1) includes being located at the brill
The First terrace of inlet side, the shaft shoulder and the First terrace cooperate.
9. double-wall drill pipe as described in claim 1, which is characterized in that the deflector hole includes being set to the interior drilling rod (2)
Interior axial blind hole (13A) and the radial communication hole (13B) being connected to the axial blind hole (13A), the wall surface through-hole (12A)
It is connected to by the radial communication hole (13B) with the axial blind hole (13A).
10. double-wall drill pipe as claimed in any one of claims 1-9 wherein, which is characterized in that drill rod sealing device (3) packet
The first sealing structure (11) and the second seals structure (9) with the first sealing structure (11) axially spaced-apart setting are included, it is described
Outer drilling rod (1) includes the peep hole (4A) being set on its wall surface to be connected to outside the double-wall drill pipe with the axially extending bore,
The communication port that the peep hole (4A) is connected to the axially extending bore is presented axially in first sealing structure (11) and described
Between second seals structure (9).
11. double-wall drill pipe as claimed in claim 10, which is characterized in that the drill rod sealing device (3) includes being set to institute
State the retaining ring (10) between the first sealing structure (11) and the second seals structure (9), be provided on the retaining ring (10) with
The perforation of peep hole (4A) connection.
12. a kind of drilling machine, which is characterized in that including the double-wall drill pipe as described in any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557535.9U CN208870542U (en) | 2018-09-25 | 2018-09-25 | Double-wall drill pipe and drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557535.9U CN208870542U (en) | 2018-09-25 | 2018-09-25 | Double-wall drill pipe and drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208870542U true CN208870542U (en) | 2019-05-17 |
Family
ID=66468510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821557535.9U Withdrawn - After Issue CN208870542U (en) | 2018-09-25 | 2018-09-25 | Double-wall drill pipe and drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208870542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894733A (en) * | 2018-09-25 | 2018-11-27 | 徐州徐工基础工程机械有限公司 | Double-wall drill pipe and drilling machine |
-
2018
- 2018-09-25 CN CN201821557535.9U patent/CN208870542U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894733A (en) * | 2018-09-25 | 2018-11-27 | 徐州徐工基础工程机械有限公司 | Double-wall drill pipe and drilling machine |
| WO2020063079A1 (en) * | 2018-09-25 | 2020-04-02 | 徐州徐工基础工程机械有限公司 | Double-walled drill pipe and drilling machine |
| US11268328B2 (en) | 2018-09-25 | 2022-03-08 | Xuzhou Xugong Foundation Construction Machinery Co., Ltd. | Double-walled drill pipe and drilling machine |
| CN108894733B (en) * | 2018-09-25 | 2024-04-30 | 徐州徐工基础工程机械有限公司 | Double-wall drill rod and drilling machine |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190517 Effective date of abandoning: 20240430 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190517 Effective date of abandoning: 20240430 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |