CN210087251U - Reversible sealing drill rod - Google Patents
Reversible sealing drill rod Download PDFInfo
- Publication number
- CN210087251U CN210087251U CN201920808289.8U CN201920808289U CN210087251U CN 210087251 U CN210087251 U CN 210087251U CN 201920808289 U CN201920808289 U CN 201920808289U CN 210087251 U CN210087251 U CN 210087251U
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- drill rod
- shaft
- rod
- pin shaft
- connecting shaft
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Abstract
The utility model discloses a reversible sealed drill rod, which comprises a plurality of hollow rod bodies connected end to end, wherein each hollow rod body comprises an intermediate rod and joints arranged at the two ends of the intermediate rod, the sealed drill rod also comprises a connecting shaft and a locking structure, the connecting shaft is arranged in the joints of the two connected hollow rod bodies so as to hermetically connect the two hollow rod bodies, and the connecting shaft is provided with a water/air passing hole; wherein the locking structure is the round pin axle, and the connecting axle is provided with one or two round pin shaft holes, and the round pin axle passes the round pin shaft hole, and the round pin axle can prevent the relative rotation between the cavity body of rod and the connecting axle, and the round pin shaft hole is with crossing water/cross wind hole mutual isolation. The drill rod can be reversely rotated by a drill rod connecting mode of arranging the connecting shaft and the locking structure, and when the drill rod is pulled out, the drill rod is prevented from falling off and being pulled off; the teeth which are meshed with each other are arranged at the two ends of the drill rod, so that the drill rod can bear larger torque, the service life is prolonged, and the sealing effect is better.
Description
Technical Field
The utility model relates to a drilling rod field especially relates to a sealed drilling rod of reversible.
Background
The drilling rod is many end to end in proper order in the operation, and current drilling rod is mostly threaded connection mode, leans on rig unit head drive drilling rod screw thread of screwing to couple together two drilling rods, and the drilling rod is screwed up the back, and drilling rod joint terminal surface is in the tight fit state. The existing drill rod has the following defects: 1. the screw connection intelligently implements forward rotation operation, the drill rod cannot rotate reversely, and otherwise an accident that the drill rod or a drill bit is transferred into a hole occurs; 2. the drill rod in threaded connection is not provided with a sealing mechanism, and is completely sealed by the end face of the joint, so that the sealing effect is difficult to ensure; 3. the drill rod is in threaded connection, and the drill rod bears huge torque and vibration impact in the construction process, so that the threaded connection is excessively fastened, the difficulty in disassembling the drill rod is increased, and even the drill rod cannot be disassembled frequently; 4. the screw thread of the drill rod in threaded connection bears large torque and impact, is easy to damage and has short service life.
SUMMERY OF THE UTILITY MODEL
To the not enough among the above-mentioned prior art, the utility model aims at providing a sealed drilling rod that can reverse, through passing through connecting axle and locking structural connection with the drilling rod more, the drilling rod can reverse, and is sealed effectual, has solved the drilling rod and has pulled the problem that falls easily when pulling out.
In order to realize the purpose, the technical scheme of the utility model is that: a reversible sealed drill rod comprises a plurality of hollow rod bodies connected end to end, wherein each hollow rod body comprises an intermediate rod and joints arranged at two ends of the intermediate rod, the sealed drill rod further comprises a connecting shaft and a locking structure, the connecting shaft is arranged in the joints of the two connected hollow rod bodies to be connected with the two hollow rod bodies in a sealing mode, and a water passing hole/air passing hole is formed in the connecting shaft;
specifically, the locking structure is a pin shaft, the connecting shaft is provided with one or two pin shaft holes, the pin shaft penetrates through the pin shaft holes, the pin shaft can prevent the hollow rod body from rotating relative to the connecting shaft, and the pin shaft holes are isolated from the water/air passing holes.
Optionally, when the connecting shaft is provided with a pin shaft hole, the pin shaft hole is positioned at one end or in the middle of the connecting shaft; when the connecting shaft is provided with two pin shaft holes, the two pin shaft holes are respectively positioned at two ends of the connecting shaft.
Further, the joint is formed with teeth that can engage with each other. Can bear larger torque and prolong the service life.
Optionally, when one end of the connecting shaft is provided with a pin shaft hole, the other end of the connecting shaft is fixedly connected with the hollow rod body through welding or interference fit. Preferably, when the other end of the connecting shaft is fixedly connected with the hollow rod body through interference fit, the other end of the connecting shaft is also provided with a flat square.
Further, when the connecting shaft is provided with one pin shaft hole which is positioned in the middle of the connecting shaft, the pin shaft respectively penetrates through the teeth which are mutually meshed of the two hollow rod bodies which are mutually connected. This ensures that the pins pass through the intermeshing teeth, respectively.
Further, the reversible sealing drill rod further comprises a sealing ring, and the sealing ring is a hole sealing ring or a shaft sealing ring.
Further, the intermediate rod and the joint are welded. Optionally, the intermediate lever is integrally formed with the joint.
Further, the pin shaft is provided with an anti-falling device, and the anti-falling device is a cotter pin or a nut.
The utility model has the advantages that: the drill rod can be reversely rotated by a drill rod connecting mode of arranging the connecting shaft and the pin shaft, and when the drill rod is pulled out, the drill rod is prevented from falling off and being pulled off; the teeth which are meshed with each other are arranged at the two ends of the drill rod, so that the drill rod can bear larger torque, the service life is prolonged, and the sealing effect is better.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a reversible seal drill rod according to an embodiment of the present invention.
Fig. 2 is a side view of a reversible seal drill rod according to one embodiment of the present invention.
Fig. 3 is a sectional view a-a of fig. 2.
Fig. 4 is a sectional view B-B of fig. 2.
Fig. 5 is a cross-sectional view C-C of fig. 3.
Fig. 6 is a cross-sectional view of a reversible seal drill rod according to an embodiment of the present invention.
Fig. 7 is a cross-sectional view of a reversible seal drill rod according to an embodiment of the present invention.
Fig. 8 is a cross-sectional view of a reversible seal drill rod according to an embodiment of the present invention.
Fig. 9 is a cross-sectional view of a reversible seal drill rod according to an embodiment of the present invention.
Fig. 10 is a cross-sectional view of a reversible seal drill rod according to another embodiment of the present invention.
Reference numerals:
the hollow rod body 1, the middle rod 11, the joint 12 and the teeth 121;
a connecting shaft 2, a pin shaft hole 21 and a water/air passing hole 22;
a shaft seal 41, a hole seal 42;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A reversible seal drill rod according to an embodiment of the present invention is described in detail below with reference to fig. 1-10.
Example 1
As shown in fig. 1-5, the reversible sealing drill rod according to the embodiment of the present invention needs to be connected one by one for use. The sealed drilling rod comprises a plurality of hollow rod bodies 1 which are connected end to end, wherein each hollow rod body 1 comprises an intermediate rod 11 and joints 12 arranged at two ends of the intermediate rod 11. The hollow rod body 1 can be cylindrical, triangular prism or other shapes which are conventional in the field, and a helical blade can be arranged on the hollow rod body 1 to facilitate the discharge of silt.
The intermediate rod 11 and the joints 12 arranged at both ends thereof are an integral drill rod, which can be integrally formed. Alternatively, the intermediate rod 11 and the joints 12 provided at both ends thereof may be welded to each other in order to reduce the difficulty of machining.
The joints 12 are provided with teeth 121 which can be meshed with each other, when two drill rods are connected end to end, the teeth 121 on the upper joint 12 of one drill rod are meshed with the teeth 121 on the upper joint 12 of the other drill rod, when the drill rods rotate, the meshed teeth can better bear torque, bear larger torque, and the service life is prolonged.
The sealed drill rod further comprises a connecting shaft 2 and a pin shaft 3, the connecting shaft 2 is used for being connected with the hollow rod bodies 1 in a sealing mode, the connecting shaft 2 is arranged in the joints 12 of the two connected hollow rod bodies 1 to be connected with the two hollow rod bodies in a sealing mode, a pin shaft hole 21 is formed in the connecting shaft 2, and the pin shaft hole 21 is used for containing the pin shaft 3. The shaft pin 3 receives a pushing (pulling) force (impact force). The arrangement realizes that the hollow drill rod can be reversed, and when the drill rod is pulled out, the drill rod is prevented from being pulled out.
The connecting shaft 2 is further provided with a water passing/air passing hole 22 for allowing high-pressure water/air to enter the hollow rod body 1 through the connecting shaft 2 so as to discharge silt. The water/air holes 22 are isolated from the pin shaft bore 21 so that the arrangement ensures that high pressure water/air does not leak from the pin shaft bore 21 as it passes through the drill pipe.
The two pin shaft holes 21 can be provided, as shown in fig. 4, 5, 7 and 8, at two ends of the connecting shaft 2, when two hollow drill rods are connected end to end, the connecting shaft 2 is inserted into the teeth 121 of the two drill rods engaged with each other, and the two pin shafts 3 are respectively inserted into the two pin shaft holes 21 of the connecting shaft 2, so as to hermetically connect the two hollow drill rods. The pin 3 prevents relative rotation of the hollow drill rod and the connecting shaft and prevents the drill rod from coming out/being pulled off when the drill rod is pulled out.
Alternatively, as shown in fig. 6 and 9, the pin shaft hole 21 may be one, and is disposed at one end of the connecting shaft 3, and one joint 12 of the hollow rod body 1 and one end of the connecting shaft 2 are hermetically connected by welding or by interference fit. The pin shaft hole 21 is arranged at the other end of the connecting shaft 2, when two drill rods are connected end to end, the connecting shaft 2 which is hermetically connected with one drill rod is inserted into the joint 12 of the other drill rod, and the pin shaft 3 is inserted into the pin shaft hole 21 of the connecting shaft 2, so that the two drill rods are hermetically connected.
Further, when there is one pin hole 21, the number of teeth 121 is odd. This arrangement ensures that the pin 3 passes through the intermeshing teeth 121 of the two joints 12, respectively, when the two drill rods are connected end to end.
Further, as shown in fig. 10, when the connecting shaft 2 is hermetically connected with the hollow rod 1 in an interference fit manner, the end of the connecting shaft 2 is further provided with a flat square, and a structure adapted to the flat square is provided at a corresponding position of the hollow rod 1, so that the structure can also prevent the relative rotation between the hollow rod 1 and the connecting shaft 2.
The pin shaft 3 is provided with an anti-dropping device which is a split pin 31 or a nut. The anti-falling device is used for locking the pin shaft, and the pin shaft does not fall off when the drill rod works.
As shown in fig. 4-7, the seal drill rod further includes a seal ring, which is a bore seal ring 42 (fig. 7) or a shaft seal ring 41 (fig. 4). Fig. 8 and 9 show a welded seal or an interference fit seal.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A reversible sealing drill rod comprises a plurality of hollow rod bodies (1) which are connected end to end, wherein each hollow rod body (1) comprises an intermediate rod (11) and joints (12) arranged at two ends of the intermediate rod (11),
the sealed drill rod further comprises a connecting shaft (2) and a locking structure, the connecting shaft (2) is arranged in the joints (12) of the two connected hollow rod bodies (1) to be connected with the two hollow rod bodies (1) in a sealing mode, and water/air passing holes (22) are formed in the connecting shaft (2);
the locking structure is a pin shaft (3), one or two pin shaft holes (21) are formed in the connecting shaft (2), the pin shaft (3) penetrates through the pin shaft holes (21), the pin shaft (3) can prevent the hollow rod body (1) from rotating relative to the connecting shaft (2), and the pin shaft holes (21) are isolated from the water/air passing holes (22).
2. A reversible sealed drill rod according to claim 1, characterized in that, when the coupling shaft (2) is provided with a pin shaft hole (21), the pin shaft hole (21) is located at one end or in the middle of the coupling shaft (2); when the connecting shaft (2) is provided with two pin shaft holes (21), the two pin shaft holes (21) are respectively positioned at two ends of the connecting shaft.
3. A reversible seal drill rod according to claim 2, characterized in that the coupling (12) is formed with intermeshing teeth (121).
4. A reversible sealed drill rod according to claim 2, characterized in that when the coupling shaft (2) is provided with one of the pin shaft holes (21) and the pin shaft hole (21) is located at one end of the coupling shaft (2), the other end of the coupling shaft (2) is fixedly connected to the hollow rod body (1) by welding or interference fit.
5. A reversible sealed drill rod according to claim 4, characterized in that, when one end of the connecting shaft (2) is fixedly connected with the hollow rod body (1) by interference fit, a flat square is further arranged at the other end of the connecting shaft (2).
6. A reversible sealed drill rod according to claim 3, characterized in that when the coupling shaft (2) is provided with one of the pin shaft holes (21) and the pin shaft hole (21) is located in the middle of the coupling shaft (2), the pin shafts (3) are respectively passed through the teeth (121) of the two hollow rods (1) connected to each other.
7. A reversible sealing drill rod according to claim 1, characterized in that it further comprises a sealing ring, which is a bore sealing ring (42) or a shaft sealing ring (41).
8. A reversible seal drill rod according to claim 1, characterized in that the intermediate rod (11) and the joint (12) are welded.
9. A reversible seal drill rod according to claim 1, characterized in that the intermediate rod (11) is formed integrally with the adapter (12).
10. A reversible sealing drill rod according to claim 1, characterized in that the pin is provided with a retaining means, which is a cotter pin (31) or a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808289.8U CN210087251U (en) | 2019-05-31 | 2019-05-31 | Reversible sealing drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920808289.8U CN210087251U (en) | 2019-05-31 | 2019-05-31 | Reversible sealing drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087251U true CN210087251U (en) | 2020-02-18 |
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ID=69481069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920808289.8U Active CN210087251U (en) | 2019-05-31 | 2019-05-31 | Reversible sealing drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087251U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894482A (en) * | 2020-07-29 | 2020-11-06 | 西安石油大学 | Drill rod connecting structure |
-
2019
- 2019-05-31 CN CN201920808289.8U patent/CN210087251U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894482A (en) * | 2020-07-29 | 2020-11-06 | 西安石油大学 | Drill rod connecting structure |
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