CN201756918U - Rotation joint of a horizontal directional driller - Google Patents
Rotation joint of a horizontal directional driller Download PDFInfo
- Publication number
- CN201756918U CN201756918U CN2010205034764U CN201020503476U CN201756918U CN 201756918 U CN201756918 U CN 201756918U CN 2010205034764 U CN2010205034764 U CN 2010205034764U CN 201020503476 U CN201020503476 U CN 201020503476U CN 201756918 U CN201756918 U CN 201756918U
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- China
- Prior art keywords
- mandrel
- shell
- core axle
- housing
- shaped ring
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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.)
- Expired - Lifetime
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Abstract
A rotation joint of a horizontal directional driller belongs to a rotation joint and comprises a shell, a core axle, a V-shaped ring, an end cover, a pressure plate and a baffle, wherein the core axle is inserted into a core axle hole of the shell and the V-shaped ring is arranged between the core axle and the shell and presses into the space between the shell and the core axle from two ends, a blind hole is arranged in the middle of the core axle, four radially annularly distributed holes are arranged on the wall of the core axle and communicated with the center blind hole; the end cover is arranged at the end of the shell and the pressure plate at the rear part of the core axle and the baffle outside the shell are connected with the shell. The advantages of the utility model are that: the rotation joint is high-pressure proof, namely the pressure withstanding value is not lower than 20MPa when the V-shaped ring seals the liquid and meanwhile a certain rotation speed, such as the linear speed of the sealing surface not exceeding 2m/s, can be withstood, when the V-shaped ring is lightly worn, the end cover is screwed down and the V-shaped ring is compacted to be continuously used for a certain time, the rotation joint is convenient for batch use and the cost is obviously reduced.
Description
Technical field
The utility model relates to the swivel joint of a kind of swivel joint, particularly a kind of horizontal directional drilling machine.
Background technology
Swivel joint is the critical component of horizontal directional drilling machine, and its performance quality directly influences the functional performance of horizontal directional drilling machine.Creep into back in the process of dragging at rig, need carry high-pressure slurry to anterior bit drilling tool, mud has effectiveness such as the retaining wall of support, lubricated drilling rod, suspension drilling cuttings, drag the prevention bit freezing to play an important role to creeping into back, the operating mode of swivel joint is for carrying high-pressure slurry liquid on one side, with the mandrel rotation, need bear reliable sealing on one side, operating mode is more harsh.
The swivel joint of state's this type of operating mode of exoadaptation has mechanical sealing and filler sealing.The sealing surface of mechanical sealing needs higher hardness and grinding precision, makes the swivel joint cost higher.The domestic filler that more generally adopts seals, and as filling sealing with the General Purpose Rubber packing, bad because of withstand voltage anti-wear performance, Chang a period of time will not changed sealing because of the packing wearing and tearing, is difficult to satisfy the construction requirement of longer cycle; As reinforced seal spare, because of the purchasing problem of seal, bring very big difficulty again to maintenance with special production.
The utility model content
The purpose of this utility model is to provide a kind of: can satisfy under certain pressure and rotation operating mode, lasting life cycle is longer, the swivel joint of the horizontal directional drilling machine that cost is low.
The purpose of this utility model is achieved in that this swivel joint comprises housing, mandrel, V-type circle, end cap, pressing plate and baffle plate, mandrel is inserted in the mandrel hole of housing, the V-type circle is arranged between mandrel and housing, the V-type circle is compressed between housing and the mandrel relatively from two ends, there is blind hole at the mandrel center, four holes that radially are periphery are arranged on the wall of mandrel, and the blind hole at four Kong Yuqi centers that radially are periphery on the mandrel communicates; Having end cap, mandrel rear portion to have in the end of housing has baffle plate all to be connected with housing outside pressing plate, the housing.
Beneficial effect is owing to adopted such scheme, this structure to comprise housing, mandrel, V-type circle, end cap, pressing plate and baffle plate, the V-type circle is compressed into housing from two ends, mandrel passes from the centre of housing and the sealing of V-type circle, and there is centre bore the centre of mandrel, is connected with four holes that radially are periphery on the mandrel; Be fixed with end cap at the housing two ends, there is pressing plate to push down not allow its play at the end cap rear portion; Housing has the baffle wedge master not allow it along with mandrel rotates together outward, and when highly pressurised liquid entered the mandrel centre bore from housing, partially liq compressing V-type circle lip opened, and wraps the mandrel surface, thereby plays the effect of seal fluid.Can satisfy under certain pressure and rotation operating mode, lasting life cycle is longer, and cost is low, has reached the purpose of this utility model.
Advantage: this swivel joint is high pressure resistant, promptly the V-type circle seal fluid withstand voltage of Cai Yonging is not less than 20MPa, simultaneously can also bear certain rotary speed is that the sealing surface linear velocity is no more than 2m/s, tightens end cap behind V-type circle mild wear, compresses the V-type circle and also can continue to use a period of time; Be convenient to adopt in batches, can significantly reduce cost.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
Among the figure, 1, O type circle; 2, mandrel; 3, bolt; 4, packing ring; 5, bolt; 6, packing ring; 7, V-type circle; 8, housing; 9, baffle plate; 10, end cap; 11, pressing plate; 12, bolt; 13, packing ring.
The specific embodiment
Embodiment 1: this swivel joint comprises housing 8, mandrel 2, V-type circle 7, end cap 10, pressing plate 11 and baffle plate 9, mandrel is inserted in the mandrel hole of housing, V-type circle 7 is arranged between mandrel and housing, V-type circle 7 is compressed between housing 8 and the mandrel relatively from two ends, mandrel 2 passes from the centre of housing 8 and V-type circle 7, there is blind hole at mandrel 2 centers, and four holes that radially are periphery are arranged on the wall of mandrel, and the blind hole at four Kong Yuqi centers that radially are periphery on the mandrel communicates; Having end cap 10, mandrel rear portion to have in the end of housing 8 has baffle plate 9 all to be connected with housing outside pressing plate 11, the housing.
V-type circle 7 is the combined type V-shaped seal ring, is made up of 3 (or 4) the group V-type canvas filler rubber body of centre and the pressure ring at two ends usually, and two groups of V-type circle V-type lips are arranged symmetrically in 8 li of housings inwardly; Mandrel 2 passes from the centre of housing 8 and V-type circle 7, and the centre bore of mandrel 2 communicates with four holes that radially are periphery, and is connected with the intake tunnel of housing 8; V-type circle 7 two ends compress with end cap 10; Mandrel 2 ends are blocked with pressing plate 11 and bolt, prevent its play; Block housing 8 with baffle plate 9 and prevent that it from rotating with mandrel 2.
High-pressure slurry liquid main channel is to flow into from housing 8 upper entrances, flow out from the mandrel centre bore in four holes that radially are periphery on mandrel 2, sealing cardinal principle to liquid is: highly pressurised liquid is by the past external pressure in the gap between mandrel 2 and the V-type circle 7, V-type circle 7 is under the pressure of highly pressurised liquid, its lip is inwardly pressed off, tightly wrap mandrel 7 surfaces, mandrel also is so when rotating, and reaches the purpose of sealing high-pressure liquid with this.The V-type circle has multiple-sealed lip, can play multi-layer sealed purpose.After must using in a period of time simultaneously, the surface that contacts with mandrel 2 as V-type circle 7 has mild wear to influence sealing effectiveness, end cap 10 can be tightened, and extruding V-type circle 7 continues to wrap mandrel 2, still can continue to use a period of time.V-type circle 7 is that two groups of symmetric arrangement are used, and effectively the liquid of sealing both ends is non-leakage.After certain life cycle, when needing to change, only need that V-type circle 7 is pulled down and changed to end cap 10 and get final product because of V-type circle 7 wearing and tearing are bigger, to change convenient and swiftly, while V-type combined seal ring is in more convenient buying, and cost is lower.
Claims (1)
1. the swivel joint of a horizontal directional drilling machine, it is characterized in that: this swivel joint comprises housing, mandrel, V-type circle, end cap, pressing plate and baffle plate, mandrel is inserted in the mandrel hole of housing, the V-type circle is arranged between mandrel and housing, the V-type circle is compressed between housing and the mandrel relatively from two ends, there is blind hole at the mandrel center, and four holes that radially are periphery are arranged on the wall of mandrel, and the blind hole at four Kong Yuqi centers that radially are periphery on the mandrel communicates; Having end cap, mandrel rear portion to have in the end of housing has baffle plate all to be connected with housing outside pressing plate, the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205034764U CN201756918U (en) | 2010-08-19 | 2010-08-19 | Rotation joint of a horizontal directional driller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205034764U CN201756918U (en) | 2010-08-19 | 2010-08-19 | Rotation joint of a horizontal directional driller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201756918U true CN201756918U (en) | 2011-03-09 |
Family
ID=43644190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205034764U Expired - Lifetime CN201756918U (en) | 2010-08-19 | 2010-08-19 | Rotation joint of a horizontal directional driller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201756918U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230361A (en) * | 2011-06-22 | 2011-11-02 | 湖南山河智能机械股份有限公司 | Intelligent rotating joint |
| CN104358997A (en) * | 2014-10-11 | 2015-02-18 | 淄博九洲润滑科技有限公司 | High-pressure lubricating rotating joint |
| CN105864539A (en) * | 2016-05-18 | 2016-08-17 | 江苏谷登工程机械装备有限公司 | Adjustable rotary joint |
| CN109237043A (en) * | 2018-11-30 | 2019-01-18 | 恒天九五重工有限公司 | A kind of rotary sealing appts of water supply or the air supply system dual fail-safe of drilling machine |
| CN109237029A (en) * | 2018-11-30 | 2019-01-18 | 恒天九五重工有限公司 | A kind of rotary sealing appts |
| CN109268504A (en) * | 2018-11-30 | 2019-01-25 | 恒天九五重工有限公司 | A kind of rotary sealing appts of dual fail-safe |
| CN109282036A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | The water supply or air supply system dual fail-safe of drilling machine and high voltage bearing rotary sealing appts |
| CN109282039A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of dual fail-safe and high voltage bearing rotary sealing appts |
| CN109281613A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of water supply of drilling machine or air supply system rotary sealing appts |
| CN109282040A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of water supply of drilling machine or the high voltage bearing rotary sealing appts of air supply system |
| CN109282038A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of high voltage bearing rotary sealing appts |
| CN109340489A (en) * | 2018-12-13 | 2019-02-15 | 恒天九五重工有限公司 | A kind of wired and radio universal type rotary sealing appts |
-
2010
- 2010-08-19 CN CN2010205034764U patent/CN201756918U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230361A (en) * | 2011-06-22 | 2011-11-02 | 湖南山河智能机械股份有限公司 | Intelligent rotating joint |
| CN104358997A (en) * | 2014-10-11 | 2015-02-18 | 淄博九洲润滑科技有限公司 | High-pressure lubricating rotating joint |
| CN105864539A (en) * | 2016-05-18 | 2016-08-17 | 江苏谷登工程机械装备有限公司 | Adjustable rotary joint |
| CN109237043A (en) * | 2018-11-30 | 2019-01-18 | 恒天九五重工有限公司 | A kind of rotary sealing appts of water supply or the air supply system dual fail-safe of drilling machine |
| CN109237029A (en) * | 2018-11-30 | 2019-01-18 | 恒天九五重工有限公司 | A kind of rotary sealing appts |
| CN109268504A (en) * | 2018-11-30 | 2019-01-25 | 恒天九五重工有限公司 | A kind of rotary sealing appts of dual fail-safe |
| CN109282036A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | The water supply or air supply system dual fail-safe of drilling machine and high voltage bearing rotary sealing appts |
| CN109282039A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of dual fail-safe and high voltage bearing rotary sealing appts |
| CN109281613A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of water supply of drilling machine or air supply system rotary sealing appts |
| CN109282040A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of water supply of drilling machine or the high voltage bearing rotary sealing appts of air supply system |
| CN109282038A (en) * | 2018-11-30 | 2019-01-29 | 恒天九五重工有限公司 | A kind of high voltage bearing rotary sealing appts |
| CN109340489A (en) * | 2018-12-13 | 2019-02-15 | 恒天九五重工有限公司 | A kind of wired and radio universal type rotary sealing appts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110309 |
|
| CX01 | Expiry of patent term |