CN111188581A - Joint assemblies, drill pipes and rigs - Google Patents
Joint assemblies, drill pipes and rigs Download PDFInfo
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- CN111188581A CN111188581A CN202010155021.6A CN202010155021A CN111188581A CN 111188581 A CN111188581 A CN 111188581A CN 202010155021 A CN202010155021 A CN 202010155021A CN 111188581 A CN111188581 A CN 111188581A
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- peripheral wall
- joint
- male
- socket portion
- slot part
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a joint assembly, a drill rod and a drilling machine, and relates to the technical field of construction machinery. The connector assembly comprises a male connector and a female connector, wherein the male connector and the female connector are hollow. The male connector comprises a plug-in part, the peripheral wall of the plug-in part is in a polygon prism shape, and the connecting part between two adjacent side walls of the peripheral wall of the plug-in part is provided with a cambered surface. The female joint comprises a slot part, the inner peripheral wall of the slot part is in a polygon prism shape corresponding to the slot part, and the connecting part between the two adjacent side walls of the inner peripheral wall of the slot part is provided with a cambered surface. The invention relieves the technical problems that in a male-female joint between two adjacent drill rods in a drilling machine in the prior art, all rotating torsion between the two adjacent drill rods is borne by convex side corners of the outer side surface of the male joint and concave side corners of the inner side surface of the female joint, stress is concentrated on the corners and surfaces on the contact surface of the male-female joint, and seizure phenomenon occurs between the male joint and the female joint under the action of long-time rotating torsion.
Description
Technical Field
The invention relates to the technical field of construction machinery, in particular to a joint assembly, a drill rod and a drilling machine.
Background
The rotary drilling machine and the spiral drilling machine are construction machinery for forming piles, the conventional rotary drilling machine and the conventional spiral drilling machine comprise a plurality of drill rods, and two adjacent drill rods are connected by adopting polygonal male and female type joints arranged at two ends of each drill rod. Polygonal male and female connectors such as regular hexagonal male and female connectors or regular octagonal male and female connectors. In order to facilitate the concrete pouring into the underground, the drill rods and the male and female connectors in the drilling machine are both of hollow structures, and when two adjacent drill rods are connected together through the male and female connectors, the drill rods and the male and female connectors are sequentially communicated.
When a rotary drill and a screw drill are used to construct a pile in the ground, the drill rod of the drill is required to rotate to drill a hole in the ground. When the drill rods in the drilling machine rotate, the transmission of the rotating torque between the male joint and the female joint of the regular polygon between two adjacent drill rods is realized by the edge-surface contact between the convex side corner of the outer side surface of the male joint and the concave side corner of the inner side surface of the female joint, therefore, in the male-female type joint between two adjacent drill rods in the existing drilling machine, the convex side corner of the outer side surface of the male joint and the concave side corner of the inner side surface of the female joint bear the whole rotating torsion between the two adjacent drill rods, the stress is concentrated on the corner and the surface of the contact surface of the male-female type joint, under long-time rotating torque effect, the wearing and tearing of the corner on the contact surface of public female type joint are great, often can appear great deformation, lead to appearing the phenomenon of dying of stinging between the convex surface corner of public joint and the concave surface of female joint, and then lead to unable separation between the public female joint for the drilling rod is scrapped.
Disclosure of Invention
The invention aims to provide a joint assembly, drill rods and a drilling machine, which are used for relieving the technical problems that in a male-female joint between two adjacent drill rods in the drilling machine in the prior art, all rotating torsion forces between the two adjacent drill rods are borne by convex side corners of the outer side surface of the male joint and concave side corners of the inner side surface of the female joint, stress is concentrated on the corners and surfaces of the contact surfaces of the male-female joint, and under the action of long-time rotating torsion, the corners on the contact surfaces of the male-female joint are abraded greatly and are deformed greatly, so that the convex side corners of the male joint and the concave surfaces of the female joint are seized, the male-female joint cannot be separated, and the drill rods are scrapped.
The connector assembly provided by the invention comprises a male connector and a female connector, wherein the male connector and the female connector are hollow;
the male connector comprises a plug-in part, the outer peripheral wall of the plug-in part is in a polygon prism shape, and a cambered surface is arranged at the joint between two adjacent side walls of the outer peripheral wall of the plug-in part;
the female joint comprises a slot part, the inner peripheral wall of the slot part is in a polygon prism shape corresponding to the slot part, and a cambered surface is arranged at the joint between two adjacent side walls of the inner peripheral wall of the slot part;
the plug part is used for being plugged in the slot part, and the male connector and the female connector can be communicated when the plug part is plugged in the slot part.
Furthermore, the cambered surface of the joint between the two adjacent side walls of the peripheral wall of the insertion part protrudes in the direction from the hollow part of the insertion part to the peripheral wall of the insertion part;
the cambered surface of the joint between the two adjacent side walls of the inner peripheral wall of the slot part protrudes in the direction from the slot part to the outer peripheral wall of the slot part.
Furthermore, each side wall of the peripheral wall of the insertion part is an arc surface, and the arc surface protrudes along the direction from the peripheral wall of the insertion part to the hollow part of the insertion part;
each side wall of the inner peripheral wall of the slot portion is an arc surface, and the arc surface protrudes in a direction from the outer peripheral wall of the slot portion to the slot portion.
Furthermore, the circumferential side length of each side wall of the outer circumferential wall of the inserting part is equal, and the circumferential side length of each side wall of the inner circumferential wall of the hollow part of the slot part is equal.
Further, when the insertion part is inserted into the slot part, a gap exists between the outer peripheral wall of the insertion part and the inner peripheral wall of the hollow part of the slot part.
Furthermore, the outer peripheral wall of the plugging part is in a regular hexagonal prism shape, and the inner peripheral wall of the slot part is in a regular hexagonal prism shape corresponding to the plugging part.
Furthermore, the outer peripheral wall of the inserting part is in a regular octagonal prism shape, and the inner peripheral wall of the inserting groove part is in a regular octagonal prism shape corresponding to the inserting part.
Further, the joint assembly further comprises a pin;
tangential grooves are formed in the outer peripheral wall of the inserting part and the inner peripheral wall of the inserting groove part, and through holes communicated with the grooves in the inner peripheral wall of the inserting groove part are formed in the outer peripheral wall of the inserting groove part;
the perforation on the periphery wall of slot part, the recess on the periphery wall of slot part and the recess on the periphery wall of grafting part can form the pinhole when the grafting part is pegged graft in slot part, and the pin is arranged in wearing to establish in the pinhole.
The drill rod provided by the invention comprises a hollow drill rod body and the joint assembly in any one of the technical schemes;
one end of the drill rod body is communicated with a male joint or a female joint of the joint assembly, and/or the other end of the drill rod body is communicated with the female joint or the male joint in the joint assembly.
The drilling machine provided by the invention comprises a plurality of drill rods, and the drill rods are communicated in sequence.
The joint assembly, the drill rod and the drilling machine provided by the invention can produce the following beneficial effects:
the connector assembly provided by the invention comprises a male connector and a female connector, wherein the male connector and the female connector are hollow. The male connector comprises a plug-in part, the peripheral wall of the plug-in part is in a polygon prism shape, and the connection part between two adjacent side walls of the peripheral wall of the plug-in part is provided with a cambered surface. The female joint comprises a slot part, the inner peripheral wall of the slot part is in a polygon prism shape corresponding to the slot part, and a cambered surface is arranged at the joint between two adjacent side walls of the inner peripheral wall of the slot part. When a rotary drilling machine and a spiral drilling machine are used for underground construction and pile forming, the male joint and the female joint in the joint assembly provided by the invention can be firstly utilized to be respectively communicated with the end parts of two adjacent drill rods in the drilling machine. And then the inserting part on the male joint between two adjacent drill rods is inserted into the slot part on the female joint, and at the moment, the male joint and the female joint are communicated together. After the drill rods in the drilling machine are driven to rotate, the transmission of the rotating torque between the male joint and the female joint between two adjacent drill rods is realized by the contact between the surfaces of the cambered surfaces on the peripheral wall of the insertion part and the cambered surfaces on the peripheral wall of the insertion part. The cambered surface on the periphery wall of the insertion part and the cambered surface on the inner peripheral wall of the insertion groove part bear all the rotating torsion between two adjacent drill rods, the stress is distributed on the cambered surface and the cambered surface which are contacted between the insertion part of the male joint and the insertion groove part of the female joint, the stress area between the male joint and the female joint can be increased, the torsion resistance of the joint assembly is increased, the male joint and the female joint can be prevented from being subjected to larger abrasion, and the phenomenon of seizure between the male joint and the female joint can be prevented.
Compared with the prior art, the joint assembly provided by the invention can increase the stress area between the male joint and the female joint by utilizing the cambered surface on the outer peripheral wall of the male joint inserting part and the cambered surface on the inner peripheral wall of the female joint inserting groove part, so that the torsion resistance of the joint assembly can be increased, the male joint and the female joint can be prevented from generating larger deformation due to larger abrasion, the phenomenon of seizure between the male joint and the female joint can be prevented, and the drill rod can be prevented from being scrapped.
The drill rod provided by the invention comprises a hollow drill rod body and the joint assembly, wherein one end of the drill rod body is communicated with a male joint or a female joint of the joint assembly, and/or the other end of the drill rod body is communicated with the female joint or the male joint of the joint assembly. The drill pipe provided by the invention comprises the joint assembly, so that the drill pipe provided by the invention has the same beneficial effects as the joint assembly.
The drilling machine provided by the invention comprises a plurality of drill rods, and the drill rods are communicated in sequence. The drilling machine provided by the invention comprises the drill rod, so that the drilling machine provided by the invention has the same beneficial effects as the drill rod.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a joint assembly according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the joint assembly of FIG. 1;
FIG. 3 is another schematic structural diagram of a joint assembly according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of the joint assembly of FIG. 3;
FIG. 5 is a schematic structural view of a drill rod provided in accordance with a second embodiment of the present invention;
fig. 6 is a cross-sectional view of the drill rod of fig. 5.
Icon: 1-a male connector; 10-a plug-in part; 2-a female joint; 20-a slot section; 3-a groove; 4-perforating; 5-the drill rod body.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 4, the connector assembly provided in this embodiment includes a male connector 1 and a female connector 2, and the male connector 1 and the female connector 2 are hollow. The male connector 1 comprises an inserting part 10, the peripheral wall of the inserting part 10 is polygonal, and a cambered surface is arranged at the connection part between two adjacent side walls of the peripheral wall of the inserting part 10. The female joint 2 includes a socket portion 20, an inner peripheral wall of the socket portion 20 is in a polygonal column shape corresponding to the socket portion 10, and a connection portion between two adjacent side walls of the inner peripheral wall of the socket portion 20 is provided with an arc surface.
The plug section 10 is adapted to be plugged into the socket section 20, and the male connector 1 and the female connector 2 can communicate when the plug section 10 is plugged into the socket section 20.
When a rotary drilling machine and a spiral drilling machine are used for constructing a pile underground, the male joint 1 and the female joint 2 in the joint assembly provided by the embodiment can be firstly utilized to be respectively communicated with the end parts of two adjacent drill rods in the drilling machine. And then the inserting part 10 on the male joint 1 between two adjacent drill rods is inserted into the inserting groove part 20 on the female joint 2, and the male joint 1 and the female joint 2 are communicated together.
After the drill rods in the drilling machine are driven to rotate, the transmission of the rotation torque between the male joint 1 and the female joint 2 between two adjacent drill rods is realized by the contact between the surfaces of the cambered surfaces on the outer peripheral wall of the insertion part 10 and the cambered surfaces on the inner peripheral wall of the insertion part 20. At this moment, the cambered surface on the outer peripheral wall of the insertion part 10 and the cambered surface on the inner peripheral wall of the slot part 20 bear all the rotating torque force between two adjacent drill rods, the stress is distributed on the cambered surfaces and the cambered surfaces which are contacted between the insertion part 10 of the male joint 1 and the slot part 20 of the female joint 2, the stress area between the male joint 1 and the female joint 2 can be increased, the torsion resistance of the joint assembly is further increased, the male joint 1 and the female joint 2 can be prevented from being greatly abraded, and the phenomenon of seizure between the male joint 1 and the female joint 2 can be prevented.
Compared with the prior art, the connector assembly that this embodiment provided can utilize the cambered surface on the periphery wall of male joint 1 grafting portion 10 and the cambered surface on the internal perisporium of female joint 2 slot portion 20 to increase the lifting surface between male joint 1 and the female joint 2, and then can increase the torsional resistance of connector assembly, and can prevent that male joint 1 and female joint 2 from producing great deformation because of receiving great wearing and tearing, and then can prevent to appear seizing the phenomenon between male joint 1 and the female joint 2, prevent that the drilling rod from scrapping.
It can be seen that, the joint assembly that this embodiment provided has alleviated in the public female type joint between two adjacent drilling rods among the drilling machine that exists among the prior art, the convex surface corner of public joint lateral surface and the concave surface corner of female joint medial surface bear whole rotary torque between two adjacent drilling rods, stress concentration is on corner and the face on the contact surface of public female type joint, under long-time rotary torque effect, the wearing and tearing of the corner on the contact surface of public female type joint are great, great deformation often can appear, lead to appearing the phenomenon of dying between the convex surface corner of public joint and the concave surface of female joint, and then lead to unable separation between the public female joint, make the condemned technical problem of drilling rod.
It should be noted that, a step is provided on the inner peripheral wall of the hollow portion of the female joint 2, and a groove portion 20 on the female joint 2 is provided between the step and one end of the female joint 2. When the plugging part 10 of the male connector 1 is plugged into the slot part 20, the plugging part 10 can abut against the step, so that the plugging part 10 can be stably plugged into the slot part 20.
As shown in fig. 2 and 4, the arc surface of the junction between the two adjacent side walls of the outer peripheral wall of the mating part 10 protrudes in the direction from the hollow of the mating part 10 to the outer peripheral wall of the mating part 10. The arc surface at the junction between the adjacent two side walls of the inner peripheral wall of the slot portion 20 protrudes in the direction from the slot portion 20 to the outer peripheral wall of the slot portion 20.
The cambered surface of the junction between the adjacent both sides wall of the periphery wall of grafting portion 10, the direction protrusion of periphery wall from the cavity of grafting portion 10 to grafting portion 10 can promote the convenience of processing the male joint 1 that this embodiment provided.
The cambered surface of the junction between the adjacent both sides wall of slot part 20's internal perisporium is protruding along the direction from slot part 20 to slot part 20's external perisporium, can promote the convenience of processing the box 2 that this embodiment provided.
Further, as shown in fig. 1 to 4, each side wall of the outer peripheral wall of the socket 10 is a curved surface, and the curved surface is projected in a direction from the outer peripheral wall of the socket 10 to the hollow of the socket 10. Each side wall of the inner peripheral wall of the slot portion 20 is an arc surface, and the arc surface is convex in a direction from the outer peripheral wall of the slot portion 20 to the slot portion 20.
Every lateral wall of the periphery wall of grafting portion 10 is the cambered surface and every lateral wall of the internal perisporium of slot part 20 is the cambered surface, can further increase the lifting surface between male joint 1 and the female joint 2, and then can further increase the antitorque ability of this joint Assembly.
As shown in fig. 2 and 4, the peripheral side length of each side wall of the outer peripheral wall of the socket portion 10 is equal, and the peripheral side length of each side wall of the inner peripheral wall in the hollow of the socket portion 20 is equal.
The circumferential side length of each side wall of the outer peripheral wall of the inserting part 10 is equal, the circumferential side length of each side wall of the inner peripheral wall of the hollow part of the inserting groove part 20 is equal, the distribution uniformity of the torsion resistance between the male connector 1 and the female connector 2 can be improved, and the stability of the male connector 1 and the female connector 2 in the stress process is further improved.
In the present embodiment, when the socket part 10 is plugged into the socket part 20, a gap exists between the outer peripheral wall of the socket part 10 and the inner peripheral wall of the hollow of the socket part 20.
The clearance that exists between the internal perisporium of the peripheral wall of grafting portion 10 and the slot part 20 cavity department is convenient for the quick counterpoint and the closure of box 2 with male joint 1.
As shown in fig. 1 and 2, the outer peripheral wall of the socket portion 10 may have a regular hexagonal prism shape, and the inner peripheral wall of the socket portion 20 may have a regular hexagonal prism shape corresponding to the socket portion 10.
The outer peripheral wall of the insertion part 10 is in a regular hexagonal prism shape, the inner peripheral wall of the slot part 20 is in a regular hexagonal prism shape corresponding to the insertion part 10, the contact area between the insertion part 10 and the slot part 20 can be increased, the torque transmitted between the insertion part 10 and the slot part 20 is larger than the maximum resisting torque on the radial section of the drill rod, and then the torque resistance of the joint assembly can be further increased.
As shown in fig. 3 and 4, the outer peripheral wall of the socket portion 10 may have a regular octagonal prism shape, and the inner peripheral wall of the socket portion 20 may have a regular octagonal prism shape corresponding to the socket portion 10.
The periphery wall of grafting portion 10 is regular octagon prism form, and the internal perisporium of slot part 20 is the regular octagon prism form that corresponds with grafting portion 10, compares in hexagonal prism form, can further increase the area of contact between grafting portion 10 and the slot part 20 for the moment of torsion that transmits between grafting portion 10 and the slot part 20 is greater than the biggest resistance torque on the drilling rod radial cross section, and then can further increase this joint Assembly's torsional resistance.
The connector assembly provided by the present embodiment further includes a pin, as shown in fig. 1 to 4, tangential grooves 3 are provided on the outer circumferential wall of the insertion part 10 and the inner circumferential wall of the insertion groove part 20, and a through hole 4 communicating with the groove 3 on the inner circumferential wall of the insertion groove part 20 is provided on the outer circumferential wall of the insertion groove part 20. The through hole 4 on the outer peripheral wall of the slot part 20, the groove 3 on the inner peripheral wall of the slot part 20, and the groove 3 on the outer peripheral wall of the socket part 10 can form a pin hole in which a pin is to be inserted when the socket part 10 is plugged in the slot part 20.
After the inserting part 10 on the male connector 1 is inserted into the inserting groove part 20 on the female connector 2, the through hole 4 on the outer peripheral wall of the inserting groove part 20, the groove 3 on the inner peripheral wall of the inserting groove part 20 and the groove 3 on the outer peripheral wall of the inserting part 10 form a pin hole, and after the pin is inserted into the pin hole, the pin can limit the male connector 1 and the female connector 2 to move along the axial direction of the male connector 1, and further can prevent the inserting part 10 from withdrawing from the inserting groove part 20 along the axial direction of the male connector 1.
Utilize the cooperation between pinhole and the round pin axle, can also realize the high-speed joint between male joint 1 and the female joint 2, and then can promote the assembly speed between a plurality of drilling rods of installing this joint Assembly, promote the efficiency of construction.
It should be noted that, the direction of the pin hole in the joint assembly provided by this embodiment is parallel to the tangential direction of the male joint 1, and compared with the direction of the pin hole being parallel to the radial direction of the male joint 1, the pin inserted into the pin hole can be prevented from extending into the hollow position of the male joint 1, and further, when concrete is introduced into the drill rod mounted with the joint assembly, the pin can be prevented from obstructing the flowing process of the concrete, and the pin can be prevented from being damaged by the concrete.
Example two:
as shown in fig. 5 and 6, the drill rod comprises a hollow drill rod body 5 and the joint assembly in the first embodiment, wherein one end of the drill rod body 5 is communicated with the male joint 1 or the female joint 2 of the joint assembly, or the other end of the drill rod body 5 is communicated with the female joint 2 or the male joint 1 of the joint assembly. Or the two ends of the drill rod body 5 are respectively communicated with the female joint 2 and the male joint 1 in the joint assembly.
The drill pipe can be a plurality of drill pipes, and the plurality of drill pipes can be communicated together in sequence through the matching of the male joint 1 and the female joint 2 in the joint assembly.
The drill rod provided by the present embodiment includes the joint assembly in the first embodiment, so that the drill rod provided by the present embodiment and the joint assembly in the first embodiment can solve the same technical problems and achieve the same technical effects. The drilling rod that this embodiment provided has equally alleviated in the public female type joint between two adjacent drilling rods among the drilling machine that exists among the prior art, the convex surface corner of public joint lateral surface and the concave surface corner of female joint medial surface bear whole rotary torque force between two adjacent drilling rods, stress concentration is on the corner and the face on the contact surface of public female type joint, under long-time rotary torque effect, the wearing and tearing of the corner on the contact surface of public female type joint are great, great deformation often can appear, the phenomenon of dying appears stinging between the convex surface corner that leads to the public joint and the concave surface of female joint, and then lead to unable separation between the public female joint, make the condemned technical problem of drilling rod.
Example three:
the drilling machine provided by the embodiment comprises a plurality of drill rods in the second embodiment, and the drill rods are communicated in sequence.
The drilling machine provided by the embodiment comprises the drill rod in the second embodiment, so that the drilling machine provided by the embodiment and the drill rod in the second embodiment can solve the same technical problems and achieve the same technical effects. The drilling machine that this embodiment provided has equally alleviated in the public female type joint between two adjacent drilling rods among the drilling machine that exists among the prior art, the convex surface corner of public joint lateral surface and the concave surface corner of female joint medial surface bear whole rotary torque force between two adjacent drilling rods, stress concentration is on the corner and the face on the contact surface of public female type joint, under long-time rotary torque effect, the wearing and tearing of the corner on the contact surface of public female type joint are great, great deformation often can appear, the phenomenon of dying appears stinging between the convex surface corner that leads to the public joint and the concave surface of female joint, and then lead to unable separation between the public female joint, make the condemned technical problem of drilling rod.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A connector assembly, comprising a male connector and a female connector, both of which are hollow;
the male connector comprises a plug-in part, the peripheral wall of the plug-in part is in a polygon prism shape, and a cambered surface is arranged at the joint between two adjacent side walls of the peripheral wall of the plug-in part;
the female joint comprises a slot part, the inner peripheral wall of the slot part is in a polygon prism shape corresponding to the insertion part, and a cambered surface is arranged at the joint between two adjacent side walls of the inner peripheral wall of the slot part;
the inserting part is used for being inserted into the slot part, and the male connector and the female connector can be communicated when the inserting part is inserted into the slot part.
2. The terminal assembly according to claim 1, wherein an arc surface of a junction between adjacent two side walls of the peripheral wall of the socket portion is projected in a direction from a hollow of the socket portion to the peripheral wall of the socket portion;
the cambered surface of the junction between the adjacent both sides wall of slot part's internal perisporium is along following the slot part to the direction protrusion of slot part's periphery wall.
3. The terminal assembly of claim 2, wherein each of the side walls of the peripheral wall of the socket portion is a curved surface that projects in a direction from the peripheral wall of the socket portion to a hollow of the socket portion;
each side wall of the inner peripheral wall of the slot part is an arc surface, and the arc surface protrudes in the direction from the outer peripheral wall of the slot part to the slot part.
4. A connector assembly according to claim 3, wherein each of the side walls of the outer peripheral wall of the socket portion has an equal length in the circumferential direction and each of the side walls of the inner peripheral wall of the hollow of the socket portion has an equal length in the circumferential direction.
5. The connector assembly of claim 1, wherein when the mating part is mated in the socket portion, a gap exists between an outer peripheral wall of the mating part and an inner peripheral wall of the socket portion void.
6. The connector assembly of claim 1, wherein the outer peripheral wall of the socket portion is regular hexagonal prism shaped and the inner peripheral wall of the socket portion is regular hexagonal prism shaped corresponding to the socket portion.
7. The connector assembly of claim 1, wherein the outer peripheral wall of the socket portion is regular octagonal prism shaped and the inner peripheral wall of the socket portion is regular octagonal prism shaped corresponding to the socket portion.
8. The fitting assembly of any of claims 1-7, further comprising a pin;
tangential grooves are formed in the outer peripheral wall of the inserting part and the inner peripheral wall of the inserting groove part, and through holes communicated with the grooves in the inner peripheral wall of the inserting groove part are formed in the outer peripheral wall of the inserting groove part;
the through hole on the peripheral wall of slot part, the recess on the internal perisporium of slot part and the recess on the peripheral wall of grafting part can form the pinhole when the grafting part is pegged graft in slot part, the pin is used for wearing to establish in the pinhole.
9. A drill pipe, comprising a hollow drill pipe body and a coupling assembly as claimed in any one of claims 1 to 8;
one end of the drill rod body is communicated with a male joint or a female joint of the joint assembly, and/or the other end of the drill rod body is communicated with the female joint or the male joint of the joint assembly.
10. A drilling rig comprising a plurality of drill rods according to claim 9, the plurality of drill rods being in communication in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155021.6A CN111188581A (en) | 2020-03-06 | 2020-03-06 | Joint assemblies, drill pipes and rigs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155021.6A CN111188581A (en) | 2020-03-06 | 2020-03-06 | Joint assemblies, drill pipes and rigs |
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| CN111188581A true CN111188581A (en) | 2020-05-22 |
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| CN202010155021.6A Pending CN111188581A (en) | 2020-03-06 | 2020-03-06 | Joint assemblies, drill pipes and rigs |
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| CN (1) | CN111188581A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227363A (en) * | 2020-10-28 | 2021-01-15 | 海南卓典高科技开发有限公司 | Slewing mechanism, chassis assembly and engineering machinery |
| US11692403B2 (en) | 2020-09-18 | 2023-07-04 | Tracto-Technik Gmbh & Co. Kg | Rod section of a ground drilling rod |
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