CN208845120U - Circumferential on-slip type heavy weight drill pipe - Google Patents
Circumferential on-slip type heavy weight drill pipe Download PDFInfo
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- CN208845120U CN208845120U CN201821499898.1U CN201821499898U CN208845120U CN 208845120 U CN208845120 U CN 208845120U CN 201821499898 U CN201821499898 U CN 201821499898U CN 208845120 U CN208845120 U CN 208845120U
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- hole
- radial
- pin
- drilling rod
- end socket
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Abstract
A kind of circumferential direction on-slip type heavy weight drill pipe, including drilling rod ontology；Corresponding external thread structure and internal thread structure are connected at the head and the tail both ends of drilling rod ontology.Further include circumferential Skidproof structure: being provided with longitudinal slot on the inner wall of internal thread structure tubular, multiple radial through-hole is provided on external thread structure, the axis of each radial through-hole and the axis co-planar of drilling rod ontology are in same plane a；The position of slot and each radial through-hole is corresponding；Pin, pressure spring and pin end socket are connected in any one radial through-hole；Radial through-hole is divided into interconnected inside and outside two sections, and the internal diameter of radial through-hole inner segment is less than the internal diameter of radial through-hole outer segment；The outer diameter of pressure spring is identical as the internal diameter of radial through-hole outer segment；Pin end socket spiral is connected to radial through-hole outer segment, and the centre of pin end socket is provided with pin hole；The outer diameter of larger one end of pin is identical as the internal diameter of radial through-hole outer segment, and the outer diameter of smaller one end of pin is not more than the internal diameter of pin hole；The length of pin is not more than the depth of radial through-hole outer segment；Smaller one end housing pressure spring of pin.
Description
Technical field
The utility model belongs to oil extraction technical field, specifically a kind of circumferential direction on-slip type heavy weight drill pipe.
Background technique
Drilling rod is to bore mill equipment or bottom outlet device for connecting drilling machine landscape apparatus and being located at drilling well bottom end.The purposes of drilling rod
It is drilling mud to be transported to drill bit, and bottom outlet device is improved, reduced or rotated together with drill bit.In operation drilling rod be according to
Secondary end to end more, currently, the common connection type of drilling rod is threadedly coupled by root.The connection type forms standard, but
In actual use, the link position for still having small probability loosens situation.For this purpose, there are also drilling rods to use thread
Non-return structure between tooth, still, since drilling rod also needs to remove by root, so, non-return structure increases the tired of drilling rod dismounting
Difficulty, or even cause the damage of drilling rod spiral link structure.Heavy weight drill pipe in drilling rod is the pipe wall body of weight, improves drilling rod and drill collar
The force environment being connected, stress condition are more harsh compared with common drilling rod.
Summary of the invention
To solve the above-mentioned problems, the utility model proposes a kind of new drilling rod, the thinking of the utility model is, due to boring
Bar will pressurize in interior bone in operation and inject mud, and the pressure of the mud of pressurization can be used as drilling rod connection knot
The external force of structure.Based on this, the embodiment of the utility model is as follows:
A kind of circumferential direction on-slip type heavy weight drill pipe, including drilling rod ontology；It is equipped in drilling rod ontology coaxial with drilling rod ontology
Mud hole；It is connected with corresponding screw connection structure at the head and the tail both ends of drilling rod ontology, which includes external screw thread
Structure and internal thread structure；Internal thread structure is tubular, and the bottom surface of tubular is provided with first through hole, and first through hole and mud hole connect
Logical, the inner wall of tubular is equipped with internal screw thread, and external thread structure is cylindricality, and the second through-hole, the second through-hole and mud are provided in cylindricality
Hole connection, is equipped with external screw thread on cylindrical outer wall；
Further include circumferential Skidproof structure, circumferential Skidproof structure be provided on the inner wall of internal thread structure tubular it is longitudinal
The length direction of slot, slot is parallel with the axis direction of drilling rod ontology, and multiple radial through-hole, Ge Gejing are provided on external thread structure
To the axis of through-hole and the axis co-planar of drilling rod ontology in same plane a；The position of slot and each radial through-hole correspondence (is being bored
Bar connects under appropriate state, and the axis of radial through-hole all passes through the bottom end middle line of slot)；
Pin, pressure spring and pin end socket are connected in any one radial through-hole；Radial through-hole is divided into interconnected inside and outside
Two sections, what it is close to the second through-hole is radial through-hole inner segment, and the internal diameter of radial through-hole inner segment is less than the internal diameter of radial through-hole outer segment；Institute
The outer diameter for stating pressure spring is identical as the internal diameter of radial through-hole outer segment；The pin end socket spiral is connected to radial through-hole outer segment, pin
The centre of end socket is provided with pin hole；The axial cross section of the pin is T-shaped, the outer diameter and radial through-hole of larger one end of pin
The internal diameter of outer segment is identical, and the outer diameter of smaller one end of pin is not more than the internal diameter of pin hole；The length of pin is not more than radial through-hole
The depth of outer segment；Pressure spring described in smaller one end housing of pin.
The principle of this heavy weight drill pipe is, in operation, pressure is transmitted to pin, pin top by radial through-hole by mud
Out, longitudinal slot is limited.When stopping operation, mud loses pressure, then pressure spring resets pin, and radial counterbore is detached from limit shape
State.Slot is acted on simultaneously by multiple pins, so that circumferential Skidproof structure is integrally accepted ability enhancing, avoids single pin in spy
Determine the situation that fractures under environment.
Further, the outer surface of the pin end socket is in radial through-hole.It prevents when repairing tooth, pin end socket influences to make
Industry.
Further, the outer surface of the pin end socket is equipped with interior hexagon indent.Convenient for using allen wrench operation.
Further, screw glue is coated between the pin end socket and radial through-hole.Fasten pin end socket and radial through-hole.
The utility model has been bonded heavy weight drill pipe using new thinking, week when can prevent heavy weight drill pipe from connecting
It is safer to offset.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this oil drill rocker；
Fig. 2 is the partial structural diagram (internal and external screw thread configuration state) of circumferential Skidproof structure；
In figure: drilling rod ontology 1, mud hole 2, external thread structure 3, internal thread structure 4, first through hole 5, slot 6, the second through-hole
7, radial through-hole 8, pin 9, pressure spring 10, pin end socket 11, pin hole 12.
Specific embodiment
This case is further illustrated with specific embodiment with reference to the accompanying drawing:
Such as Fig. 1, a kind of circumferential direction on-slip type heavy weight drill pipe, including drilling rod ontology；It is equipped with and drilling rod ontology in drilling rod ontology
Coaxial mud hole；It is connected with corresponding screw connection structure at the head and the tail both ends of drilling rod ontology, which includes
External thread structure and internal thread structure；Internal thread structure is tubular, and the bottom surface of tubular is provided with first through hole, first through hole and mud
Hole connection, the inner wall of tubular are equipped with internal screw thread, and external thread structure is cylindricality, are provided with the second through-hole in cylindricality, the second through-hole with
The connection of mud hole, is equipped with external screw thread on cylindrical outer wall；
Such as Fig. 2, including circumferential Skidproof structure, circumferential Skidproof structure is to be provided with longitudinal direction on the inner wall of internal thread structure tubular
Slot, the length direction of slot is parallel with the axis direction of drilling rod ontology, and multiple radial through-hole are provided on external thread structure, each
The axis of radial through-hole and the axis co-planar of drilling rod ontology are in same plane a；The position of slot and each radial through-hole is corresponding；
Pin, pressure spring and pin end socket are connected in any one radial through-hole；Radial through-hole is divided into interconnected inside and outside
Two sections, what it is close to the second through-hole is radial through-hole inner segment, and the internal diameter of radial through-hole inner segment is less than the internal diameter of radial through-hole outer segment；Institute
The outer diameter for stating pressure spring is identical as the internal diameter of radial through-hole outer segment；The pin end socket spiral is connected to radial through-hole outer segment, pin
The centre of end socket is provided with pin hole；The axial cross section of the pin is T-shaped, the outer diameter and radial through-hole of larger one end of pin
The internal diameter of outer segment is identical, and the outer diameter of smaller one end of pin is not more than the internal diameter of pin hole；The length of pin is not more than radial through-hole
The depth of outer segment；Pressure spring described in smaller one end housing of pin.
The outer surface of the pin end socket is in radial through-hole.The outer surface of the pin end socket is equipped in interior hexagon
It is recessed.Screw glue is coated between the pin end socket and radial through-hole.
Claims (4)
1. a kind of circumferential direction on-slip type heavy weight drill pipe, including drilling rod ontology；The mud coaxial with drilling rod ontology is equipped in drilling rod ontology
Starch hole；It is connected with corresponding screw connection structure at the head and the tail both ends of drilling rod ontology, which includes external screw thread knot
Structure and internal thread structure；Internal thread structure is tubular, and the bottom surface of tubular is provided with first through hole, and first through hole is connected to mud hole,
The inner wall of tubular is equipped with internal screw thread, and external thread structure is cylindricality, and the second through-hole is provided in cylindricality, and the second through-hole and mud hole connect
It is logical, external screw thread is equipped on cylindrical outer wall；
It is characterized in that further including circumferential Skidproof structure, circumferential Skidproof structure is to be provided with longitudinal direction on the inner wall of internal thread structure tubular
Slot, the length direction of slot is parallel with the axis direction of drilling rod ontology, and multiple radial through-hole are provided on external thread structure, each
The axis of radial through-hole and the axis co-planar of drilling rod ontology are in same plane a；The position of slot and each radial through-hole is corresponding；
Pin, pressure spring and pin end socket are connected in any one radial through-hole；Radial through-hole is divided into interconnected inside and outside two sections,
What it is close to the second through-hole is radial through-hole inner segment, and the internal diameter of radial through-hole inner segment is less than the internal diameter of radial through-hole outer segment；The pressure
The outer diameter of spring is identical as the internal diameter of radial through-hole outer segment；The pin end socket spiral is connected to radial through-hole outer segment, pin end socket
Centre be provided with pin hole；The axial cross section of the pin is T-shaped, the outer diameter and radial through-hole outer segment of larger one end of pin
Internal diameter it is identical, the outer diameter of smaller one end of pin is not more than the internal diameter of pin hole；The length of pin is not more than radial through-hole outer segment
Depth；Pressure spring described in smaller one end housing of pin.
2. heavy weight drill pipe according to claim 1, it is characterized in that the outer surface of the pin end socket is in radial through-hole.
3. heavy weight drill pipe according to claim 1, it is characterized in that the outer surface of the pin end socket is equipped in interior hexagon
It is recessed.
4. heavy weight drill pipe according to claim 1, it is characterized in that being coated with screw between the pin end socket and radial through-hole
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499898.1U CN208845120U (en) | 2018-09-13 | 2018-09-13 | Circumferential on-slip type heavy weight drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499898.1U CN208845120U (en) | 2018-09-13 | 2018-09-13 | Circumferential on-slip type heavy weight drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845120U true CN208845120U (en) | 2019-05-10 |
Family
ID=66372900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821499898.1U Active CN208845120U (en) | 2018-09-13 | 2018-09-13 | Circumferential on-slip type heavy weight drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845120U (en) |
-
2018
- 2018-09-13 CN CN201821499898.1U patent/CN208845120U/en active Active
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