CN116838357A - Horizontal directional drilling pipe - Google Patents
Horizontal directional drilling pipe Download PDFInfo
- Publication number
- CN116838357A CN116838357A CN202310856636.5A CN202310856636A CN116838357A CN 116838357 A CN116838357 A CN 116838357A CN 202310856636 A CN202310856636 A CN 202310856636A CN 116838357 A CN116838357 A CN 116838357A
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- CN
- China
- Prior art keywords
- piece
- support
- mud
- jacking
- working end
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 16
- 238000013016 damping Methods 0.000 claims abstract description 23
- 230000033001 locomotion Effects 0.000 claims abstract description 22
- 230000003044 adaptive effect Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0692—Cutter drive shields
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
Abstract
The application provides a horizontal directional drilling jacking pipe, which comprises a jacking pipe body, wherein the jacking pipe body is provided with a working end and a mud discharging end, at least one horizontal directional drilling is arranged at the working end, and a plurality of mud inlet holes communicated with the mud discharging end are also formed at the working end; the adaptive damping component is arranged on the periphery of the jacking pipe and is connected to the jacking pipe body through an adaptive motion mechanism, the adaptive motion mechanism comprises an annular supporting piece and a transmission component, and the annular supporting piece is embedded on the periphery of the jacking pipe body; the sensing vibration module at least comprises a first sensor and a second sensor, the first sensor is arranged at the outer edge of the working end, and the second sensor is arranged on the rigid support piece; and electrical components that provide electrical connection and electrical control between the components. The application realizes damping support to local vibration and reduces the interference of the local vibration to the whole jacking work.
Description
Technical Field
The application belongs to the field of construction devices, and particularly relates to a horizontal directional drilling pipe.
Background
Along with the development of urban construction, pipeline construction technology is more and more widely applied, and the existing excavation and laying generally adopts a pipe jacking technology, so that the surrounding environment is not influenced or the influence is small, the construction site is small, and the noise is low. But also can go deep into underground operation. The existing pipe jacking construction pushes a tool pipe or a heading machine from the inside of a working well to the inside of a receiving well through a soil layer by means of thrust of a main top oil cylinder, a relay between pipelines and the like. Meanwhile, the working pipe which is immediately behind the tool pipe or the heading machine is buried between two wells, and then the working pipe is taken out of the receiving well through the hoisting machine, so that the construction of laying underground pipelines in a non-excavation mode is realized. The existing pipe jacking technology has the defects that route planning is unclear, pipe jacking vibration is severe in the jacking process, and particularly when a pipeline has a non-standard pipe diameter, uneven local pipeline collapse occurs due to vibration.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present application is to provide a horizontal directional drilling pipe, so as to solve the problem of local pipe collapse caused by vibration during pipe jacking operation.
A horizontal directional drilling pipe which is provided with a plurality of horizontal directional drilling pipes,
comprising the following steps:
the pipe jacking body is provided with a working end and a mud discharging end which is arranged opposite to the working end, wherein the working end is provided with at least one horizontal directional drill which is coaxial or not coaxial with the geometric center of the working end, and the working end is also provided with a plurality of mud inlets which are communicated with the mud discharging end;
and an adaptive shock-absorbing assembly, at least one of which is arranged at the periphery of the jacking pipe and comprises a telescopic connecting piece, a damping supporting piece and a rigid supporting piece, wherein the telescopic connecting piece is connected to the jacking pipe body through an adaptive movement mechanism, and the telescopic connecting piece is sequentially connected with the damping supporting piece and the rigid supporting piece,
the adaptive movement mechanism comprises an annular supporting piece and a transmission assembly, the annular supporting piece is embedded at the periphery of the jacking pipe body, the outer wall of the annular supporting piece is connected with the telescopic connecting piece to form a supporting area, the edge of the supporting area extends to one side to form a transmission area,
the transmission assembly comprises a linear driving piece and a circumferential driving piece which are fixed on the jacking pipe body, the circumferential driving piece is connected with the transmission area and is suitable for executing the circumferential movement of the annular supporting piece, and the linear driving piece is connected to the circumferential driving piece and is suitable for executing the linear movement of the circumferential driving piece and the annular supporting piece;
the sensing vibration module at least comprises a first sensor and a second sensor, the first sensor is arranged at the outer edge of the working end, and the second sensor is arranged on the rigid support piece;
and electrical components providing electrical connection and electrical control between the components.
Further, the circumference driving piece comprises a circumference driving machine and a driving gear connected to an output shaft of the driving machine, and driven teeth connected with the driving gear are arranged on the inner wall of the transmission area.
Further, the linear driving member is a hydraulic linear driving machine or a pneumatic linear driving machine, and an output shaft thereof is connected to the circumferential driving machine.
Further, support skins are arranged on the outer edges of the two sides of the annular support piece, and the two support skins are correspondingly connected to the working end and the mud discharge end;
the support skin is formed by compounding double-layer skins, an inflation area is formed by a gap between the double-layer skins, and the inflation area is connected with a bidirectional air pump.
Further, still include stirring mud storehouse, it sets up in the pipe-jacking body, stirring mud storehouse intercommunication go into mud hole and have at least one water inlet, and the intercommunication the mud end forms the mud hole. .
Further, the mud inlet hole is arranged on the end plane of the working end, the projection of the mud inlet hole along the axis of the pipe jacking body is triangular, and the mud inlet hole inwards sinks into the pipe jacking body to form an inverted triangular mud inlet area.
Further, the mud inlet holes are arranged at intervals, and the geometric centers of the working ends are arranged in a circular radial mode by taking the circle centers as circle centers. .
Further, the method comprises the steps of,
a storage part is formed on the supporting area and used for storing the adaptive supporting piece;
when the telescopic piece moves to a contraction dead point in the adaptive support piece, the outer surface of the rigid support piece and the support area are positioned on the same geometric surface;
the shrink dead point is the shortest travel position of the telescopic piece.
Further, the push pipe body comprises a sliding support piece which is provided with an inner contact surface and an outer contact surface which are oppositely arranged, wherein the inner contact surface is in a shape matched with the outer wall of the push pipe body.
Further, the outer contact surface of the sliding support has
A plurality of first roll shafts which are arranged at intervals and along the axial direction of the external contact surface,
and a plurality of second roll shafts which are arranged at intervals along the circumferential direction of the external contact surface. .
Compared with the prior art, the application has the following advantages:
(1) According to the application, the sensing vibration module is arranged, the first sensor in the sensing vibration module detects the vibration source place, then the electric assembly controls the adaptive motion mechanism to move to the direction of the vibration source place, so that the vibration source place is locally supported, and the damping structure on the adaptive damping assembly is used for damping and supporting the vibration source place, so that local collapse caused by local vibration is avoided.
(2) The slurry balance jacking pipe can uniformly form a drag reduction slurry pipe sleeve in the operation process, so that the jacking resistance of the jacking pipe head is reduced.
(3) And a damping device is arranged, so that vibration during pipe jacking operation is reduced, and stable operation of the pipe body is maintained.
Drawings
FIG. 1 is a schematic overall structure of a first embodiment of the present application;
FIG. 2 is a schematic view of the structure with the support skin removed according to an embodiment of the present application;
FIG. 3 is a schematic view of the structure of FIG. 2 at another view angle;
FIG. 4 is a schematic view of an adaptive damping assembly according to a first embodiment of the present application;
FIG. 5 is a schematic view showing a sliding support according to a first embodiment of the present application;
FIG. 6 is a schematic view showing an arrangement of a first roller and a second roller in accordance with the first embodiment of the present application;
fig. 7 is a schematic view showing an internal structure of a push pipe body according to the first embodiment of the present application.
Wherein:
1. a jacking pipe body; 2. a horizontal directional drill; 3. adapting to the shock absorption component; 4. adapting to a motion assembly; 5. a sliding support;
11. a working end; 12. a mud discharging end; 13. a mud hole is formed; 14. a support skin; 15. a mud stirring bin;
21. a drill bit; 22 drill rods;
31. a telescoping connection; 32. damping support; 33. rigid support
41. An annular support; 42. a transmission assembly;
51. an inner contact surface; 52. an outer contact surface;
141. a skin winding machine;
151. a water inlet; 152. a mud hole;
411. a support region; 412. a transmission region;
421. a linear driving member; 422. a circumferential driving member; a step of
521. A first roller shaft; 522. a second roller shaft;
4221. a circumferential drive; 4222. a drive gear;
4121. driven teeth.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
The embodiment provides a horizontal directional drilling jacking pipe, which comprises a jacking pipe body, an adaptive damping component and an electric component, as shown in fig. 1.
The pipe jacking body is a tubular member which is integrally cylindrical and is provided with a working end and a mud discharging end which is opposite to the working end, the working end is provided with at least one horizontal directional drill which is coaxial or not coaxial with the geometric center of the working end, and the working end is also provided with a plurality of mud inlets which are communicated with the mud discharging end.
It should be noted that although only one horizontal directional drill is shown in this embodiment at the center of the working end, in one possible embodiment the placement of the horizontal directional drill is not limited to one or to being at the geometric center, and the location and number of horizontal directional drills may be selectively adapted depending on the actual drilling geotechnical conditions.
And adapt the damper, at least one adapt the damper sets up in the top tube periphery, it includes telescopic connection spare, damping support spare and rigid support spare, telescopic connection spare is connected to through adapting movement mechanism the top tube body, just telescopic connection spare connects in proper order damping support spare with rigid support spare, damping support spare is a plurality of damping balls of interval setting at rigid support spare in this embodiment, and damping ball is flexible material and makes, and rigid support spare sets up at interval between the interval region between damping ball simultaneously, and rigid support spare of this embodiment takes a plurality of articulated rigid spare as an example, and its pin joint sets up in damping ball's interval department to telescopic connection spare corresponds the regional quantity setting of being separated by rigid support spare, telescopic connection spare is the cylinder in this embodiment, and independent operation between each cylinder to realize the shape adaptation function to the region that needs to support.
The adaptive movement mechanism comprises an annular supporting piece and a transmission assembly, the annular supporting piece is embedded at the periphery of the jacking pipe body, the outer wall of the annular supporting piece is connected with the telescopic connecting piece to form a supporting area, the edge of the supporting area extends to one side to form a transmission area,
the transmission assembly comprises a linear driving piece and a circumferential driving piece which are fixed on the jacking pipe body, the circumferential driving piece is connected with the transmission area and is suitable for executing the circumferential movement of the annular supporting piece, and the linear driving piece is connected to the circumferential driving piece and is suitable for executing the linear movement of the circumferential driving piece and the annular supporting piece. The circumference driving piece comprises a circumference driving machine and a driving gear connected to an output shaft of the driving machine, and driven teeth connected with the driving gear are arranged on the inner wall of the transmission area. The linear driving piece is a hydraulic linear driving machine or a pneumatic linear driving machine, and an output shaft of the linear driving piece is connected to the circumferential driving machine.
As a further preferable mode of the present embodiment, the vibration sensor further includes a sensing vibration module including at least a first sensor and a second sensor, the first sensor is disposed at an outer edge of the working end, and the second sensor is disposed at the rigid support.
In this embodiment, the connection relationship between the first sensor and the second sensor is not shown, and in one possible implementation manner, the first sensors in this embodiment are plural and are disposed along the end face circle of the sludge discharge end.
And an electrical component that provides electrical connection and electrical control between components, the electrical control in this embodiment being basic electrical control, so that only sensor detection and supporting after executing movement of each electrical device in this embodiment on the detected area according to the need can be achieved.
The outer edges of two sides of the annular supporting piece are respectively provided with a supporting skin, and the two supporting skins are correspondingly connected to the working end and the mud discharging end; the support skin is formed by compounding the double-layer skin, and an inflation area is formed by a gap between the double-layer skin, and the inflation area is connected with a bidirectional air pump (not shown in the figure), the bidirectional air pump in the embodiment refers to an air pump capable of supplying air and exhausting air to the same side, the air pump is a conventional technical means in the field, and the double-layer skin compound structure in the embodiment is also a conventional technical means, so that the working principle between the two is not repeated specifically.
The top pipe body of this embodiment is internally provided with the skin rolling machine that is connected with the support skin, and the skin rolling machine is through the tip of connecting the support skin to roll up the skin, when needs open, the other end of accessible manual fixed skin or set up the skin rolling machine respectively at two opposite sides, and the skin of one of them side can be dismantled, realizes rolling and opening.
The pipe jacking body of this embodiment is inside still to be provided with the stirring mud storehouse, stirring mud storehouse intercommunication go into mud hole and have at least one water inlet, and the intercommunication the mud hole is formed to the mud end, and the mode of mud water is discharged after the earth stirring that produces when its aim at will the operation is convenient for further operation. The mud inlet hole is arranged on the end plane of the working end, is triangular in projection along the axis of the pipe jacking body, and inwards sinks into the pipe jacking body to form an inverted triangular mud inlet area. The mud inlet holes are arranged at intervals, and the geometric centers of the working ends are arranged in a circular radial mode with the circle center as the center.
As a further preferable mode of the present embodiment, a receiving portion (not shown in the drawings) is formed on the supporting region for receiving the adapting support member; when the telescopic piece moves to a contraction dead point in the adaptive support piece, the outer surface of the rigid support piece and the support area are positioned on the same geometric surface; the shrink dead point is the shortest travel position of the telescopic piece.
As a further preferred mode of this embodiment, there is further included a sliding support having oppositely disposed inner and outer contact surfaces, the inner contact surface being shaped to mate with the outer wall of the jacking pipe body. The inner contact surface of the sliding support piece is provided with a plurality of first roll shafts which are arranged at intervals and along the axial direction of the outer contact surface, and a plurality of second roll shafts which are arranged at intervals and along the circumferential direction of the inner contact surface.
The working principle of this embodiment is as follows:
according to the application, the sensing vibration module is arranged, the first sensor heavy to the sensing vibration module detects the vibration source place, then the electric assembly controls the adaptive movement mechanism to the direction of the vibration source place, so that the vibration source place is locally supported, and the damping structure on the adaptive damping assembly is used for damping and supporting the vibration source place, so that local collapse caused by local vibration is avoided.
Example two
The difference between the first embodiment and the second embodiment is that the working end of the first embodiment rotates relative to the push pipe body, and the rotation is driven by a circumferential driving mechanism disposed inside the push pipe body, so that the circumferential movement of a certain structure is performed in the art as a common technical feature, and therefore will not be described in detail.
When the working end performs the circular motion, the sensing vibration module in this embodiment is different from that in the first embodiment, and specifically, the number of the first sensors may be set according to the speed of the circular motion.
If the time required by the operation end to rotate for one circle is within a preset sensing period, a first sensor can be optionally arranged on the edge of the end plane of the operation end when the first sensor is arranged, at this time, the first sensor collects data of a working area along with the movement of the operation end, when the first sensor detects that the vibration is larger than a preset value, the first sensor sends a signal, and an electric component calculates the actual source area of the seismic source according to the time, the position and the time delay of signal transmission of a signal generation source.
Thus, in this embodiment, the first sensor has at least an inertial sensing module and an orientation sensing module, to locate the vibration source,
the foregoing describes in detail preferred embodiments of the present application. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the application without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by a person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (10)
1. A horizontally oriented drill pipe, comprising:
the pipe jacking body is provided with a working end and a mud discharging end which is arranged opposite to the working end, wherein the working end is provided with at least one horizontal directional drill which is coaxial or not coaxial with the geometric center of the working end, and the working end is also provided with a plurality of mud inlets which are communicated with the mud discharging end;
and an adaptive shock-absorbing assembly, at least one of which is arranged at the periphery of the jacking pipe body and comprises a telescopic connecting piece, a damping supporting piece and a rigid supporting piece, wherein the telescopic connecting piece is connected to the jacking pipe body through an adaptive movement mechanism, and the telescopic connecting piece is sequentially connected with the damping supporting piece and the rigid supporting piece,
the adaptive movement mechanism comprises an annular supporting piece and a transmission assembly, the annular supporting piece is embedded at the periphery of the jacking pipe body, the outer wall of the annular supporting piece is connected with the telescopic connecting piece to form a supporting area, the edge of the supporting area extends to one side to form a transmission area,
the transmission assembly comprises a linear driving piece and a circumferential driving piece which are fixed on the jacking pipe body, the circumferential driving piece is connected with the transmission area and is suitable for executing the circumferential movement of the annular supporting piece, and the linear driving piece is connected to the circumferential driving piece and is suitable for executing the linear movement of the circumferential driving piece and the annular supporting piece;
the sensing vibration module at least comprises a first sensor and a second sensor, the first sensor is arranged at the outer edge of the working end, and the second sensor is arranged on the rigid support piece;
and electrical components providing electrical connection and electrical control between the components.
2. The horizontal directional drilling pipe according to claim 1, wherein the circumferential driving member comprises a circumferential driving machine and a driving gear connected to an output shaft of the driving machine, and the inner wall of the transmission area is provided with driven teeth connected to the driving gear.
3. The horizontal directional drilling pipe according to claim 1, wherein the linear driving member is a hydraulic linear driving machine or a pneumatic linear driving machine, and an output shaft thereof is connected to the circumferential driving machine.
4. The horizontal directional drilling pipe according to claim 1, wherein the outer edges of both sides of the annular support are provided with support skins, and two of the support skins are correspondingly connected to the working end and the mud discharging end;
the support skin is formed by compounding double-layer skins, an inflation area is formed by a gap between the double-layer skins, and the inflation area is connected with a bidirectional air pump.
5. The horizontal directional drilling pipe according to claim 1, further comprising a mud stirring bin disposed in the pipe jacking body, wherein the mud stirring bin is communicated with the mud inlet and has at least one water inlet, and is communicated with the mud discharging end to form a mud discharging hole.
6. The horizontally oriented drill pipe according to claim 5, wherein the mud inlet is provided on an end plane of the working end, which is triangular in projection along an axis of the pipe jacking body, and which is recessed inward of the pipe jacking body to form an inverted triangular mud inlet area.
7. The horizontal directional drilling pipe according to claim 1, wherein the plurality of mud inlets are arranged at intervals, and the geometric centers of the working ends are arranged in a radial manner circumferentially around the center of the circle.
8. The horizontal directional drilling pipe according to claim 1, wherein a receiving portion is formed on the support section for receiving the adaptive support member;
when the telescopic piece moves to a contraction dead point in the adaptive support piece, the outer surface of the rigid support piece and the support area are positioned on the same geometric surface;
the shrink dead point is the shortest travel position of the telescopic piece.
9. The horizontally oriented drill pipe according to claim 1, further comprising a sliding support having oppositely disposed inner and outer contact surfaces, the inner contact surface being shaped to mate with the pipe jacking body outer wall.
10. The horizontally oriented drill pipe according to claim 9, wherein the outer contact surface of the sliding support has
A plurality of first roll shafts which are arranged at intervals and along the axial direction of the external contact surface,
and a plurality of second roll shafts which are arranged at intervals along the circumferential direction of the external contact surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310856636.5A CN116838357A (en) | 2023-07-12 | 2023-07-12 | Horizontal directional drilling pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202310856636.5A CN116838357A (en) | 2023-07-12 | 2023-07-12 | Horizontal directional drilling pipe |
Publications (1)
Publication Number | Publication Date |
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CN116838357A true CN116838357A (en) | 2023-10-03 |
Family
ID=88163223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202310856636.5A Pending CN116838357A (en) | 2023-07-12 | 2023-07-12 | Horizontal directional drilling pipe |
Country Status (1)
Country | Link |
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CN (1) | CN116838357A (en) |
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2023
- 2023-07-12 CN CN202310856636.5A patent/CN116838357A/en active Pending
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