CN201635666U - High-pressure water sealing drill pipe - Google Patents
High-pressure water sealing drill pipe Download PDFInfo
- Publication number
- CN201635666U CN201635666U CN2010201470675U CN201020147067U CN201635666U CN 201635666 U CN201635666 U CN 201635666U CN 2010201470675 U CN2010201470675 U CN 2010201470675U CN 201020147067 U CN201020147067 U CN 201020147067U CN 201635666 U CN201635666 U CN 201635666U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- drill pipe
- joint
- female joint
- pressure water
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a drill pipe used for the drilling operation of coal rock in the mining industry, in particular to a high-pressure water sealing drill pipe. A main body of the high-pressure water sealing drill pipe consists of a male connector, a middle tube and a female connector which are welded, wherein an O-ring arranged in a straight shaft section of the male connector is in close contact with a shaft surface of a straight shaft hole section of the female connector in the next drill pipe to realize radial seal, and the drill pipe can bear the 50MPa high pressure water without leakage under the combined action of screwed taper thread and the O-ring. The elastic O-ring is closely attached in an annular groove of the male connector before drill pipe connection and does not easily drop off, therefore, the operation is simpler and more convenient. In addition, the distance between the shaft surface of the straight shaft section of the male connector and the shaft surface of the straight shaft hole section of the female connector is relatively fixed, therefore, the O-ring is not easily damaged owing to excessive extrusion after connection. Compared with other high-pressure sealing drill pipes, the utility model has the advantages of simple structure, convenient operation and low cost. Meanwhile, the high-pressure water sealing drill pipe has strong adaptability and is also applicable to other drilling operations such as air exhausting.
Description
Technical field
The utility model relates to a kind of drilling rod that is applied in bore operation in the coal petrography, especially a kind of water under high pressure sealing drilling rod.
Background technology
The water under high pressure sealing drilling rod is used for drilling in coal and rock operations such as the auxiliary bit bore of high-pressure water jet, wind gang drill hole technology, its effect is the rotary power of transmission rig and feeds power, and entered the passage at subdrilling head place, hole as media such as water, wind by power-equipment outside the hole.General mining drilling rod adopts the interference fit of taper thread or end face that the male joint top is connected with female joint to seal mostly.
At present, generally only depend on the drilling rod of taper thread sealing can bear the hydraulic pressure of 0.5～3MPa, but because taper thread has wearing and tearing under the situation of dismounting drilling rod constantly, so its sealability can reduce with the increase of the degree of wear.And the end face that is connected with female joint at the male joint top is put into sealing ring and is sealed, and sealability is improved, but sealing ring lost efficacy in the easy deformation of forcing down of sealing two sections, frequently changes sealing ring drilling efficiency is reduced, and increased the boring cost.Because higher to required precision, and serious wear in the work progress makes that industrial generalization is relatively poor for the sealing means of special processing.
The utility model content
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of water under high pressure sealing drilling rod is provided, again can be so that operation is easier when improving voltage endurance capability and prolonging sealing ring application life.
In order to realize the foregoing invention purpose, the technical solution of the utility model is:
A kind of water under high pressure sealing drilling rod, described drilling rod main body is welded successively by male joint, intervalve and female joint three parts.The link that described male joint is connected with the female joint of next drilling rod is connected to form by d-axis section and outer cone thread successively, on described d-axis section a ring-shaped groove is arranged, and is provided with the O RunddichtringO in the groove;
Described female joint is connected to form by d-axis hole section and inside tapered thread successively with the link that the male joint of a last drilling rod is connected;
Described drilling rod connects the d-axis section axial plane of back male joint and the female joint d-axis hole section axial plane appropriateness extruding O RunddichtringO of next drilling rod forms radial seal, and the inside tapered thread of the outer cone thread of male joint and the female joint of next drilling rod screws and is connected; The male joint d-axis section axial plane appropriateness extruding O RunddichtringO of the d-axis hole section axial plane of female joint and a last drilling rod also forms radial seal, the inside tapered thread of female joint screws with the outer cone thread of the male joint of a last drilling rod and is connected, and both actings in conjunction can be born the water under high pressure of 30～50MPa down and do not revealed.
The tapering of the outer cone thread of described male joint and the inside tapered thread of female joint is 3.5 °～4.5 °, and pitch is 4.5～5.5mm.
The beneficial effects of the utility model are:
1. compare with the general drilling rod that only depends on the taper thread sealing, its pressure that bears water is brought up to present 50MPa by 0.5 original～3MPa.
2. adopt the drilling rod of end face seal to compare with other, the O RunddichtringO life-span is improved about 20 times, draws materials easily.
3. adopt the drilling rod of end face seal to compare with other, operate easier.
4. compare simple in structure, handling ease, durable in use with the sealing drilling rod of the special processing of needs.
5. this water under high pressure sealing drilling rod compliance is strong, also is applicable to the hole operation of wind gang drill.
Description of drawings
Fig. 1 is a water under high pressure sealing drilling rod axial section.
Fig. 2 is that axial vane surface figure is cutd open in male joint
Fig. 3 female joint axial section
Among the figure: 1.O RunddichtringO 2. male joints 3. intervalves 4. female joint 2-1. male joint d-axis section 2-2. ring-shaped groove 2-3. outer cone thread 2-4. male joint soldering opening 4-1. female joint welding section 4-2. hexahedron section 4-3. female joint d-axis hole section 4-4. inside tapered threads
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Referring to Fig. 1, this water under high pressure sealing drilling rod external diameter is 50mm, and length is 750mm, and the drilling rod main body is welded by male joint 2, intervalve 3 and female joint 4, and 2-4 is the male joint soldering opening.4-1 is the female joint welding section.The centre of female joint 4 is hexahedron section 4-2.The d-axis hole section 4-3 length of the d-axis section 2-1 of male joint and female joint is 12mm, and they are connected with the female joint d-axis hole section of next drilling rod and the d-axis section of a last fillet of tool joint pins respectively, and connecting back two axial plane separations is 0.5mm.Be arranged at ring-shaped groove 2-2 on the section 4-3 of d-axis hole, width is 2.5mm, and the degree of depth is 1.2mm.Ring-shaped groove 2-2 puts into O RunddichtringO 1 before drilling rod connects, thereby drilling rod connects back male joint d-axis section axial plane, female joint d-axis hole section axial plane appropriateness extruding O RunddichtringO 1 is realized radial seal.The tapering of the outer cone thread 2-3 of male joint 2 and the inside tapered thread 4-4 of female joint 4 is 3.5 °～4.5 °, screw thread be length be 38mm 5 teeth/time taper pipe thread made in Great Britain.The inside tapered thread of the outer cone thread 2-3 of male joint 2 and the female joint of next drilling rod screws and is connected, and the inside tapered thread 4-4 of female joint 4 screws with the outer cone thread of the male joint of a last drilling rod and is connected.
Above-mentioned drilling rod can bear the water under high pressure of 50MPa in the synergy of the auxiliary seal of radial seal and taper thread, and does not leak.Because rubber-like O RunddichtringO 1 closely is connected with ring-shaped groove 2-2, difficult drop-off is easy and simple to handle.Two drilling rods connect back male joint d-axis section axial plane and female joint d-axis hole section axial plane separation relative fixed, can not cause O RunddichtringO 1 because of excessive compression lost efficacy, and make the sealing ring life-span improve 20 times.O RunddichtringO 1 adopts the General Purpose Rubber standard component, has to draw materials conveniently low cost and other advantages.
Claims (2)
1. water under high pressure sealing drilling rod, described water under high pressure sealing drilling rod main body is welded successively by male joint (2), intervalve (3) and female joint (4) three parts; It is characterized in that:
The link that described male joint (2) is connected with the female joint (4) of next drilling rod is connected to form by d-axis section (2-1) and outer cone thread (2-3) successively, and a ring-shaped groove (2-2) is arranged on described d-axis section (2-1), is provided with O RunddichtringO (1) in the groove;
The link that described female joint (4) is connected with the male joint (2) of a last drilling rod is connected to form by d-axis hole section (4-3) and inside tapered thread (4-4) successively;
Described drilling rod connects the d-axis section axial plane of back male joint (2) and the female joint d-axis hole section axial plane appropriateness extruding O RunddichtringO (1) of next drilling rod forms radial seal, and the inside tapered thread (4-4) of the outer cone thread (2-3) of male joint (2) and the female joint of next drilling rod screws and is connected; The male joint d-axis section axial plane appropriateness extruding O RunddichtringO (1) of the d-axis hole section axial plane of female joint (4) and a last drilling rod also forms radial seal, and the inside tapered thread of female joint (4-4) screws with the outer cone thread (2-3) of the male joint (2) of a last drilling rod and is connected.
2. water under high pressure sealing drilling rod according to claim 1 is characterized in that: the tapering of the outer cone thread (2-3) of described male joint (2) and the inside tapered thread (4-4) of female joint is 3.5 °～4.5 °, and pitch is 4.5～5.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201470675U CN201635666U (en) | 2010-03-31 | 2010-03-31 | High-pressure water sealing drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201470675U CN201635666U (en) | 2010-03-31 | 2010-03-31 | High-pressure water sealing drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201635666U true CN201635666U (en) | 2010-11-17 |
Family
ID=43080155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201470675U Expired - Lifetime CN201635666U (en) | 2010-03-31 | 2010-03-31 | High-pressure water sealing drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201635666U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140892A (en) * | 2011-01-24 | 2011-08-03 | 中国水电顾问集团中南勘测设计研究院 | Elastic drill rod joint |
| CN102839927A (en) * | 2012-10-12 | 2012-12-26 | 重庆大学 | High-pressure water seal dual-power auger stem |
| CN103797208A (en) * | 2011-09-13 | 2014-05-14 | 阿特拉斯·科普柯加拿大有限公司 | Drill pipe with replaceable tool joints |
| US9932788B2 (en) | 2015-01-14 | 2018-04-03 | Epiroc Drilling Tools Llc | Off bottom flow diverter sub |
| WO2022068374A1 (en) * | 2020-09-29 | 2022-04-07 | 中煤科工集团西安研究院有限公司 | Dual-connection drill rod imitating animal rib-bone structure |
-
2010
- 2010-03-31 CN CN2010201470675U patent/CN201635666U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140892A (en) * | 2011-01-24 | 2011-08-03 | 中国水电顾问集团中南勘测设计研究院 | Elastic drill rod joint |
| CN103797208A (en) * | 2011-09-13 | 2014-05-14 | 阿特拉斯·科普柯加拿大有限公司 | Drill pipe with replaceable tool joints |
| CN102839927A (en) * | 2012-10-12 | 2012-12-26 | 重庆大学 | High-pressure water seal dual-power auger stem |
| CN102839927B (en) * | 2012-10-12 | 2015-07-08 | 重庆大学 | High-pressure water seal dual-power auger stem |
| US9932788B2 (en) | 2015-01-14 | 2018-04-03 | Epiroc Drilling Tools Llc | Off bottom flow diverter sub |
| WO2022068374A1 (en) * | 2020-09-29 | 2022-04-07 | 中煤科工集团西安研究院有限公司 | Dual-connection drill rod imitating animal rib-bone structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201635666U (en) | High-pressure water sealing drill pipe | |
| CN203531777U (en) | High-quality airtight seal oil casing threaded joint | |
| CN203783490U (en) | Large-diameter double-wall drill pipe | |
| CN201723179U (en) | Air-tight oil casing nipple | |
| CN205936432U (en) | Mining super pressurization drilling rod | |
| CN201496000U (en) | Structure of hermetically sealed joint of oil pipe or sleeve | |
| CN206439004U (en) | A kind of mine drill stem with anti-loose structure | |
| CN203961895U (en) | A kind of tie back liner plug | |
| CN201891391U (en) | Sealing connecting structure for high-pressure water delivering drill rod | |
| CN202706945U (en) | Spiral auxiliary slagging high pressure drill rod for hydrodynamic measures | |
| CN204984280U (en) | Novel sealed drilling rod | |
| CN201254959Y (en) | Oil pipe joint for moderating stress concentration work | |
| CN203008810U (en) | Integral type triple-head big lead wide air foil spiral drill rod | |
| CN201875312U (en) | Lap welding branch pipe threaded joint sealed by O-shaped rubber sealing ring | |
| CN203175417U (en) | Welding drill collar | |
| CN203239244U (en) | Air-tight seal oil pipe screwed joint | |
| CN205036318U (en) | Sediment drilling rod is arranged to integral many arriss high pressure thrust | |
| CN104806826A (en) | Clamp ring two-side-locked thin-walled metal pipe intertubular connecting component | |
| CN214303721U (en) | Drilling rod with axial deep groove wear-resistant joint for well drilling | |
| CN202117577U (en) | Internal slip type connector for continuous tube | |
| CN107448603A (en) | A kind of piston rod | |
| CN207598192U (en) | A kind of drilling machine water becomes head pressurization leakage-proof liquid device | |
| CN204040933U (en) | With the aluminium drill pipe of steel sealing syndeton | |
| CN204040927U (en) | Water filling deslagging gas drainage drill stem | |
| CN203008801U (en) | Whole type oil pipe joint with air-tight seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |