CN205908268U - Unit head is gas box for rig - Google Patents
Unit head is gas box for rig Download PDFInfo
- Publication number
- CN205908268U CN205908268U CN201620737107.9U CN201620737107U CN205908268U CN 205908268 U CN205908268 U CN 205908268U CN 201620737107 U CN201620737107 U CN 201620737107U CN 205908268 U CN205908268 U CN 205908268U
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- CN
- China
- Prior art keywords
- main shaft
- ring
- core pipe
- gas box
- drilling machine
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- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 45
- 238000005553 drilling Methods 0.000 claims description 36
- 230000001050 lubricating effect Effects 0.000 claims description 9
- 239000004519 grease Substances 0.000 claims description 8
- 238000005461 lubrication Methods 0.000 claims description 7
- 239000000356 contaminant Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 206010020112 Hirsutism Diseases 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 38
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an unit head is gas box for rig, the main shaft is hollow structure, and the suit is in the casing to relative rotation with the casing, the shell middle part is along radially being provided with the air inlet, and the main shaft middle part is along radially being equipped with the main shaft hole, the support ring suit is outside the main shaft, and the support ring is along radially being equipped with the support annular ring, the core pipe lies in the main shaft, and connect core pipe and main shaft through the screw fixed, intermural formation and main shaft hole feed through in core pipe and the main shaft annular inlet channel, the axis in air inlet, support annular ring, main shaft hole is on same water flat line, air inlet, support annular ring, main shaft hole, annular inlet channel constitute the gas passage, both ends set up V type combined seal ring respectively about the support ring, and V type combined seal ring's the other end passes through the clamping ring to be supported, fix lower extreme on the casing through the bolt respectively with upper end cover, bottom end cover, realize the axial positioning and the end seal of main shaft and casing. Simple structure, safe and reliable, sealing performance are well and long service life.
Description
Technical field
This utility model is related to a kind of power head drilling machine gas box, belongs to drilling machinery technical field.
Background technology
In recent years from the point of view of the development trend of drilling technique, drilling well diameter is gradually increased, and bores deep being gradually increased.In large scale
Or during ultra-deep well drilling, large-minded needed for conventional direct circulation, flushing liquor takes the scarce capacity of anti-earth's surface on slag, there is drilling efficiency
The problems such as low, high cost.Meanwhile, during conventional direct circulation drilling well, high-speed gas are obvious to the erosion of the borehole wall, in hole instability
When, easily " pregnant " occurs in well.If additionally, there is lost-circulation zone down-hole, drainage easily occurs.
Can be solved the above problems using gas lift reverse circulation or pneumatic down-hole hammer reverse circulation drilling technology.Using this drilling technology
Gases at high pressure enter shaft bottom from the annular clearance of double wall drill tool, borehole wall erosion can be prevented effectively from, solve leakage simultaneously and lose to return to ask
Topic.In addition, institute's air demand is the 1/2～1/5 of conventional direct circulation gas, there is stronger anti-slag ability, drilling efficiency is high, construction
Low cost.
This gas lift reverse circulation or pneumatic down-hole hammer reverse circulation drilling technology need to connect a gas box in unit head lower end
Son, gas box is attached with double wall drill tool again, and gases at high pressure enter the annular clearance of double wall drill tool from gas box, and then reaches
Drill bit, realizes efficiently creeping into.
There is following defect in currently available technology: one: 1, sealing member adopts y shape sealing ring, and this type sealing ring is past in straight line
Respond well but rotatory sealing ability is poor in multiple motion seal, its operating temperature is at -30 DEG C～+100 DEG C.Because main shaft is high
Speed rotation and there are gases at high pressure from air compressor machine airtight interior, temperature is higher, y shape sealing ring in the case of unlubricated fat easily
Abrasion, the life-span is shorter；2nd, core pipe is set in main shaft, is no fixedly connected between the two, in the different areas of activity not using gas box
Under, core pipe easily drops out in main shaft, the inconvenience such as management use.
Two: 1, either direct circulation or reverse circulation drilling process, the float function being required for air supported head is to facilitate upper shackle
When protect drilling tool thread, and the distribution function of gas box only uses in reverse circular technique, and the program is by gas box and air supported head
It is integrated into parts, then, in direct circulation drilling process, gas box still works, cause to wear and tear, greatly reduce gas box
The actual life of sub- inner bearing and sealing member etc..2nd, it is the assembling capacity ensureing air supported head inducing QI box device, using split
The block of formula, increased structural complexity.3rd, sealing member adopts o type rotating seal ring, and this type sealing ring is used for sealing high pressure gas
Body and be dynamic sealing, sealing effectiveness is poor.4th, it is to prevent core pipe from dropping, be provided with reverse circulation sub, air guide shaft, structure is more multiple
Miscellaneous, and increased principal fault point.
Utility model content
Purpose: in order to overcome the deficiencies in the prior art, this utility model provides a kind of power head drilling machine gas box
Son, structure is simple, safe and reliable, good seal performance and long service life.
Technical scheme: for solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of power head drilling machine gas box, including bottom end cover, housing, support ring, V-shaped combined seal ring, pressure ring, master
Axle, core pipe and upper end cover；It is characterized in that: described main shaft is hollow structure, is set in housing, and relative with housing turn
Dynamic；It has been disposed radially air inlet in the middle part of shell, in the middle part of main shaft, be radially provided with spindle hole；
Described support ring is sleeved on outside main shaft, and support ring is radially provided with support annular distance；
Described core pipe is located in main shaft, and by screw, core pipe and main shaft is connected, shape between core pipe and main shaft inwall
Become the annular inlet passageway connecting with spindle hole；Described air inlet, support annular distance, spindle hole axis in the same horizontal line；
Air inlet, support annular distance, spindle hole, annular inlet passageway constitute gas passage；
It is respectively provided with V-shaped combined seal ring in support ring upper and lower ends, the other end of V-shaped combined seal ring is propped up by pressure ring
Upper end cover, bottom end cover are separately fixed at housing upper and lower side by bolt by support, realize axially position and the end of main shaft and housing
Sealing.
Preferably, described power head drilling machine with gas box it is characterised in that: every group of V-shaped combined seal ring is by 3
～6 V-shaped sealing ring compositions.
Preferably, described power head drilling machine gas box it is characterised in that: described pressure ring is radially provided with all
The pressure ring hole of cloth, lubricating cup is communicated with the pressure ring hole of pressure ring, realizes the lubrication of V-shaped combined seal ring for adding grease, extends
The service life of sealing member.
Described power head drilling machine gas box it is characterised in that: be provided with bearing between main shaft and housing, for realizing
Main shaft is relatively rotated with housing.Also include lubricating cup and oil sealing, bearing realizes grease lubrication using lubricating cup, realize lubrication using oil sealing
The sealing and prevent extraneous miscellaneous dirt from entering of fat.
Described power head drilling machine gas box it is characterised in that: be respectively provided with connection in main shaft top and bottom
Api standard external.
Described power head drilling machine gas box it is characterised in that: be provided with o type between described core pipe upper end and main shaft inwall close
Seal, is provided with many uniform ribs between core pipe lower end and main shaft inwall, the external diameter of rib and the internal diameter of main shaft are interference fits,
To ensure the axiality of core pipe and main shaft rotary motion, strengthen the sealing effectiveness of o type sealing ring.
Preferably, described power head drilling machine with gas box it is characterised in that: described bottom end cover and housing lower end
Between be provided with sealing gasket.
Preferably, described power head drilling machine with gas box it is characterised in that: between described bottom end cover and main shaft
It is provided with felt circle for stopping the entrance of introduced contaminants.
Beneficial effect: the power head drilling machine gas box that this utility model provides, disclosure satisfy that gas lift reverse circulation or pneumatic
Reverse Circulation DTH Hammer Drilling Technique, structure is simple, safe and reliable, good seal performance and long service life, have the advantage that 1,
Using V-shaped combined seal ring, good seal performance and long service life；2nd, using screw, core pipe and main shaft are coupled together, prevent
Core pipe spills from main shaft inwall, enhances the reliability of assembling.
Brief description
Fig. 1 is sectional view of the present utility model；
Fig. 2 is the structural representation of support ring in this utility model；
Fig. 3 is the structural representation of main shaft in this utility model；
Fig. 4 is the structural representation of pressure ring in this utility model；
Fig. 5 is the structural representation of this utility model core pipe；
In figure: bottom end cover 1, sealing gasket 2, pressure ring 3, pressure ring hole 31, V-shaped combined seal ring 4, support ring 5, housing 6, air inlet
Mouth 61, support annular distance 51, spindle hole 81, annular inlet passageway 91；Bearing 7, main shaft 8, core pipe 9, rib 92, felt circle 10, o type
Sealing ring 11, lubricating cup 12, screw 13, upper end cover 14, oil sealing 15, bolt 16.
Specific embodiment
With reference to specific embodiment, this utility model is further described.
As shown in figure 1, being a kind of this utility model power head drilling machine gas box, including bottom end cover 1, housing 6, support ring
5th, V-shaped combined seal ring 4, pressure ring 3, main shaft 8, core pipe 9 and upper end cover 14；Described main shaft 8 is hollow structure, is set in housing 6
Interior, relatively rotating of main shaft and housing is realized by bearing 7；It has been disposed radially air inlet 61, edge in the middle part of main shaft in the middle part of shell
It is radially provided with the spindle hole being connected with air inlet 61；
Described support ring 5 is sleeved on outside main shaft 8, and support ring is affixed with housing 6, and support ring 5 is radially provided with and air inlet
The support annular distance that 61 are connected；
Described core pipe 9 is located in main shaft 8, and by screw 13, core pipe 9 and main shaft 8 is connected, in core pipe and main shaft
Form the annular inlet passageway 91 connecting with spindle hole between wall；Air inlet 61, support annular distance 51, spindle hole 81, annular air inlet are led to
Road 91 constitutes gas passage；Described air inlet 61, support annular distance 51, spindle hole 81 axis in the same horizontal line；
It is respectively provided with V-shaped combined seal ring 4 in support ring 5 upper and lower ends, the other end of V-shaped combined seal ring 4 passes through pressure
Ring 3 supports, and by bolt 16, upper end cover 14, bottom end cover 1 is separately fixed at columnar housing upper and lower side, realizes main shaft and shell
The axially position of body and end seal.Bearing 7 realizes grease lubrication using lubricating cup 12, and the sealing realizing grease using oil sealing 15 is simultaneously
Prevent extraneous miscellaneous dirt from entering.
It is provided with api standard external in main shaft 8 upper and lower side.Carrying out gas lift reverse circulation or pneumatic down-hole hammer reverse circulation drilling
When, upper external screw thread is connected with the floating installation of unit head, lower end external screw thread is connected with double-wall drill pipe or adapter, will
Air compressor machine pipe joint is connected with the air inlet 61 of housing 6, and gases at high pressure arrive along the annular inlet passageway 91 between main shaft 8 and core pipe 9
Reach drill bit, landwaste passes through to return to earth's surface on core pipe 9 and the hollow channel of main shaft 8.
As shown in Figure 1, Figure 2, Figure 3 shows, gases at high pressure passage of the present utility model includes air inlet 61, supports annular distance 51, master
Form the annular inlet passageway 91 connecting with spindle hole between axis hole 81, core pipe 9 and main shaft 8 inwall.Support ring 5 is radially provided with all
The support annular distance 51 of cloth, main shaft 8 is radially provided with uniform spindle hole 81, in this utility model, supports annular distance 51 to adopt 8,
Spindle hole 81 adopts 6.Air inlet 61, support annular distance 51, spindle hole 81 axis in the same horizontal line.
As shown in figure 1, this utility model realizes the sealing of gases at high pressure using V-shaped combined seal ring 4, this sealing ring works
Temperature, at -30 DEG C～+200 DEG C, can meet work in hot environment environmental requirement.It is respectively provided with two groups of V-shapeds in support ring 5 upper and lower ends
Combined seal ring 4, every group of V-shaped combined seal ring is made up of 3～6 V-shaped sealing rings, and in this utility model, every group of V-shaped combination is close
The quantity of seal is 3.After gas box is using a period of time, V-shaped group can be compressed further by reducing the thickness of sealing gasket 2
Close sealing ring, extend the service life of sealing member.
As Figure 1 and Figure 4, the other end in every group of V-shaped combined seal ring 4 is supported using pressure ring 3, and pressure ring is radially
It is provided with uniform pressure ring hole 31, the quantity in pressure ring hole is 4-8, adopts 4 in this utility model.Lubricating cup 12 and the pressure ring of pressure ring
Hole 31 communicates, and realizes the lubrication of V-shaped combined seal ring for adding grease, extends the service life of sealing member.In bottom end cover 1
It is provided with felt circle 10 for stopping the entrance of introduced contaminants and main shaft between.
As shown in Figure 1, shown in Figure 5, it is provided with o type sealing ring 11, core pipe lower end and main shaft inwall between core pipe 9 upper end and main shaft inwall
Between be provided with uniform three piece rib 92, the external diameter of rib and the internal diameter of main shaft are interference fits, to ensure core pipe and main shaft rotation
The axiality of motion, strengthens the sealing effectiveness of o type sealing ring.For preventing gas box when depositing keeping, core pipe is from main shaft inwall
In spill, be provided with an annular groove in core pipe, be radially provided with two screwed holes in main shaft, using screw 13, core pipe and main shaft fixed.
The above be only preferred implementation of the present utility model it should be pointed out that: for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (9)
1. a kind of power head drilling machine gas box, including bottom end cover, housing, support ring, V-shaped combined seal ring, pressure ring, main shaft,
Core pipe and upper end cover；It is characterized in that: described main shaft is hollow structure, is set in housing, and with the relatively rotating of housing；Outward
It has been disposed radially air inlet in the middle part of shell, in the middle part of main shaft, be radially provided with spindle hole；
Described support ring is sleeved on outside main shaft, and support ring is radially provided with support annular distance；
Described core pipe is located in main shaft, and by screw, core pipe and main shaft is connected, formed between core pipe and main shaft inwall and
The annular inlet passageway of spindle hole connection；Described air inlet, support annular distance, spindle hole axis in the same horizontal line；Air inlet
Mouth, support annular distance, spindle hole, annular inlet passageway constitute gas passage；
It is respectively provided with V-shaped combined seal ring in support ring upper and lower ends, the other end of V-shaped combined seal ring is supported by pressure ring,
Upper end cover, bottom end cover are separately fixed at by housing upper and lower side by bolt, realize main shaft close with the axially position of housing and end
Envelope.
2. power head drilling machine according to claim 1 with gas box it is characterised in that: every group of V-shaped combined seal ring by 3～
6 V-shaped sealing ring compositions.
3. power head drilling machine gas box according to claim 1 it is characterised in that: described pressure ring is radially provided with uniformly
Pressure ring hole, lubricating cup communicated with the pressure ring hole of pressure ring, realizes the lubrication of V-shaped combined seal ring for adding grease, extends close
The service life of sealing.
4. power head drilling machine gas box according to claim 1 it is characterised in that: be provided with axle between main shaft and housing
Hold, for realizing relatively rotating of main shaft and housing.
5. power head drilling machine gas box according to claim 4 it is characterised in that: also include lubricating cup and oil sealing, bearing
Realize grease lubrication using lubricating cup, realize sealing and preventing extraneous miscellaneous dirt from entering of grease using oil sealing.
6. power head drilling machine gas box according to claim 1 it is characterised in that: set respectively in main shaft top and bottom
There is the api standard external for connecting.
7. power head drilling machine according to claim 1 with gas box it is characterised in that: described core pipe upper end and main shaft inwall
Between be provided with o type sealing ring, be provided with many uniform ribs between core pipe lower end and main shaft inwall, the external diameter of rib and the internal diameter of main shaft
For interference fits, to ensure the axiality of core pipe and main shaft rotary motion, strengthen the sealing effectiveness of o type sealing ring.
8. power head drilling machine according to claim 1 with gas box it is characterised in that: described bottom end cover and housing lower end it
Between be provided with sealing gasket.
9. power head drilling machine gas box according to claim 1 it is characterised in that: set between described bottom end cover and main shaft
Hairiness felt collar is used for stopping the entrance of introduced contaminants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737107.9U CN205908268U (en) | 2016-07-13 | 2016-07-13 | Unit head is gas box for rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737107.9U CN205908268U (en) | 2016-07-13 | 2016-07-13 | Unit head is gas box for rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908268U true CN205908268U (en) | 2017-01-25 |
Family
ID=57805673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620737107.9U Active CN205908268U (en) | 2016-07-13 | 2016-07-13 | Unit head is gas box for rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908268U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978985A (en) * | 2017-05-10 | 2017-07-25 | 中铁工程装备集团有限公司 | A kind of anti-swelling device of rig |
| CN107191600A (en) * | 2017-06-19 | 2017-09-22 | 珠海市英格尔特种钻探设备有限公司 | A kind of unit head sealing structure for water of portable drill |
| CN109751402A (en) * | 2019-01-18 | 2019-05-14 | 江苏徐工工程机械研究院有限公司 | Vehicle-mounted coal bed gas drilling machine power head reduction box |
| CN110056310A (en) * | 2019-05-23 | 2019-07-26 | 中国石油集团东方地球物理勘探有限责任公司 | A kind of simple light drilling machine and its matching used drilling rod |
| CN115387725A (en) * | 2022-08-11 | 2022-11-25 | 中煤科工集团西安研究院有限公司 | An electric drive intelligent roller cone drilling rig |
-
2016
- 2016-07-13 CN CN201620737107.9U patent/CN205908268U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978985A (en) * | 2017-05-10 | 2017-07-25 | 中铁工程装备集团有限公司 | A kind of anti-swelling device of rig |
| CN107191600A (en) * | 2017-06-19 | 2017-09-22 | 珠海市英格尔特种钻探设备有限公司 | A kind of unit head sealing structure for water of portable drill |
| CN107191600B (en) * | 2017-06-19 | 2019-05-03 | 珠海市英格尔特种钻探设备有限公司 | A kind of power head sealing structure for water of portable drill |
| CN109751402A (en) * | 2019-01-18 | 2019-05-14 | 江苏徐工工程机械研究院有限公司 | Vehicle-mounted coal bed gas drilling machine power head reduction box |
| CN109751402B (en) * | 2019-01-18 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | Vehicle-mounted coalbed methane drill power head reduction gearbox |
| CN110056310A (en) * | 2019-05-23 | 2019-07-26 | 中国石油集团东方地球物理勘探有限责任公司 | A kind of simple light drilling machine and its matching used drilling rod |
| CN110056310B (en) * | 2019-05-23 | 2025-08-05 | 中国石油集团东方地球物理勘探有限责任公司 | A simple and portable drilling rig and its matching drill rod |
| CN115387725A (en) * | 2022-08-11 | 2022-11-25 | 中煤科工集团西安研究院有限公司 | An electric drive intelligent roller cone drilling rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220726 Address after: No.26 tuolanshan Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Xugong Construction Machinery Research Institute Co.,Ltd. Address before: 221004 26 Jinshan Road, Jinshan Bridge Economic Development Zone, Xuzhou, Jiangsu Patentee before: XCMG CONSTRUCTION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |