CN109882093B - Twist drill rod - Google Patents
Twist drill rod Download PDFInfo
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- CN109882093B CN109882093B CN201910198086.6A CN201910198086A CN109882093B CN 109882093 B CN109882093 B CN 109882093B CN 201910198086 A CN201910198086 A CN 201910198086A CN 109882093 B CN109882093 B CN 109882093B
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Abstract
The invention discloses a twist drill rod which comprises a twist rod body, wherein one end of the twist rod body is provided with a connecting column, the other end of the twist rod body is provided with a connecting hole, an external thread is arranged on the connecting column, an internal thread matched with the external thread on the connecting column is arranged in the connecting hole, a torque transmission assembly is arranged in the connecting hole and comprises an internal screw rod and a connecting sleeve, the connecting sleeve is sleeved on the internal screw rod and is connected with the internal screw rod through a thread, the end part of the connecting sleeve is provided with a first plane latch, the middle part of the connecting column is provided with a blind hole corresponding to the connecting sleeve, and the bottom of the blind hole is provided with a second plane latch corresponding to the first plane latch. When the drill rod is tunneled, the torque force between the connecting hole and the connecting column can be shared between the inner screw rod and the connecting sleeve and between the first plane latch and the second plane latch, and the damage of the torque force to the threads between the connecting hole and the connecting column is reduced.
Description
Technical Field
The invention relates to the technical field of coal mining drill rods, in particular to a twist drill rod.
Background
In coal mining, the drill rods need to be lengthened one by one along with the increase of the drilling depth, the traditional drill rods are generally connected through threads in the connection process, and the torque is transmitted through the connection between the drill rods in the rotating process of the drill rods, so that destructive influence is easily generated on the threads between the drill rods.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a twist drill rod which can avoid the damage to the connection part when rotating.
In order to solve the problems, the invention comprises a twist rod body, wherein one end of the twist rod body is provided with a connecting column, the other end of the twist rod body is provided with a connecting hole, the connecting column is provided with an external thread, the connecting hole is internally provided with an internal thread matched with the external thread on the connecting column, a torque transmission assembly is arranged in the connecting hole and comprises an inner screw rod and a connecting sleeve, one end of the inner screw is fixedly connected with the bottom of the connecting hole, the central axis of the inner screw is collinear with the central axis of the connecting hole, the connecting sleeve is sleeved on the inner screw, and is connected with the inner screw rod through screw threads, the end part of the connecting sleeve is provided with a first plane latch, the middle part of the connecting column is provided with a blind hole corresponding to the connecting sleeve, and the bottom of the blind hole is provided with a second plane latch corresponding to the first plane latch; when the connecting hole of the twist rod body is connected with the connecting column of the adjacent twist rod body in place, the first plane latch on the connecting sleeve is in butt joint and meshing with the second plane latch in the blind hole.
Preferably, the inner screw is connected to the bottom surface of the connecting hole through the flange plate, the inner screw is connected with the flange plate through welding, and the flange plate is connected with the connecting hole through a plurality of connecting bolts.
Preferably, the first plane latch comprises an installation sleeve and a fluted disc fixed at the end of the installation sleeve, the inner hole of the installation sleeve is a polygonal hole, the end of the connecting sleeve is provided with a polygonal shaft corresponding to the polygonal hole on the installation sleeve, the polygonal hole of the installation sleeve is sleeved on the polygonal shaft of the connecting sleeve, the outer diameter of the installation sleeve is matched with the outer diameter of the connecting sleeve, a plurality of countersunk holes are formed in the circumferential direction of the side wall of the installation sleeve at intervals, the polygonal shaft of the connecting sleeve is provided with connecting screw holes corresponding to the countersunk holes on the installation sleeve one by one, each countersunk hole is internally provided with a fastening bolt, all the fastening bolts are hexagon socket head bolts, and when the fastening bolts are fixed in place, the heads of the fastening bolts do not protrude out of the outer surface of the installation sleeve.
Preferably, the meshing teeth on the fluted disc are arranged on the edge of the fluted disc at intervals along the circumferential direction of the fluted disc, and the fluted disc is fixedly connected to the end part of the mounting sleeve through a plurality of screws.
Preferably, the second plane latch is fixed in the blind hole of the connecting column through a bolt.
Preferably, the twist rod body is a double-helix drill rod.
The invention has the beneficial effects that: when adjacent drill rods are connected, the connecting hole of the next drill rod is connected to the connecting column of the previous drill rod in an aligned mode, the connecting sleeve in the connecting hole is inserted into the blind hole of the connecting column, the connecting hole of the next drill rod is in threaded connection with the connecting column of the previous drill rod by driving the drill rods to rotate, the connecting sleeve extends into the blind hole simultaneously until the connecting hole is tightly connected with the connecting column in a threaded mode, the first plane latch on the connecting sleeve is connected to the second plane latch in the blind hole in an aligned mode, when the drill rods are tunneled, torque force between the inner screw rod and the connecting sleeve and between the first plane latch and the second plane latch can be shared, and damage of the torque force to the threads between the connecting hole and the connecting column is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view before adjacent drill pipes are connected;
FIG. 3 is an enlarged view of the point A in FIG. 2;
FIG. 4 is an enlarged view of the first planar latch installation;
FIG. 5 is a schematic structural view after connection of adjacent drill rods is completed;
fig. 6 is an enlarged schematic view of the structure at B in fig. 5.
Wherein: 1. the device comprises a connecting column, 2, a twist rod body, 3, a connecting hole, 4, a flange plate, 5, an inner screw rod, 6, a connecting sleeve, 7, an installation sleeve, 8, a fluted disc, 9, a second plane clamping tooth, 6-1 and a polygonal shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The twist drill rod shown in fig. 1 comprises a twist rod body 2, wherein the twist rod body 2 is a double-helix drill rod, one end of the twist rod body 2 is provided with a connecting column 1, the other end of the twist rod body 2 is provided with a connecting hole 3, an external thread is arranged on the connecting column 1, an internal thread matched with the external thread on the connecting column 1 is arranged in the connecting hole 3, as shown in fig. 2-4, a torque transmission assembly is arranged in the connecting hole 3 and comprises an internal screw rod 5 and a connecting sleeve 6, one end of the internal screw rod 5 is fixedly connected to the bottom of the connecting hole 3, the internal screw rod 5 is connected to the bottom surface of the connecting hole 3 through a flange plate 4, the internal screw rod 5 is connected to the flange plate 4 through welding, and the flange plate 4 is connected to. The central axis of the inner screw rod 5 is collinear with the central axis of the connecting hole 3, the connecting sleeve 6 is sleeved on the inner screw rod 5 and is in threaded connection with the inner screw rod 5, a first plane latch is arranged at the end part of the connecting sleeve 6, a blind hole corresponding to the connecting sleeve 6 is arranged in the middle of the connecting column 1, and a second plane latch 9 corresponding to the first plane latch is arranged at the bottom of the blind hole; when the connecting hole 3 of the twist rod body 2 is connected with the connecting column 1 of the adjacent twist rod body 2 in place, the first plane latch on the connecting sleeve 6 is in butt joint and meshing with the second plane latch 9 in the blind hole.
The first plane latch of the present embodiment includes a mounting sleeve 7 and a fluted disc 8 fixed on an end of the mounting sleeve 7, the inner hole of the mounting sleeve 7 is a polygonal hole, the end part of the connecting sleeve 6 is provided with a polygonal shaft 6-1 corresponding to the polygonal hole on the mounting sleeve 7, the polygonal hole of the mounting sleeve 7 is sleeved on the polygonal shaft 6-1 of the connecting sleeve 6, the outer diameter of the mounting sleeve 7 is matched with the outer diameter of the connecting sleeve 6, a plurality of countersunk holes are arranged at intervals in the circumferential direction of the side wall of the mounting sleeve 7, connecting screw holes which are in one-to-one correspondence with the countersunk holes on the mounting sleeve 7 are arranged on the polygonal shaft 6-1 of the connecting sleeve 6, a fastening bolt is arranged in each countersunk hole, and all the fastening bolts are hexagon socket head cap bolts, when the fastening bolt is fixed in place, the head of the fastening bolt does not protrude out of the outer surface of the mounting sleeve. The meshing tooth on the fluted disc 8 set up on the edge of fluted disc 8 along the circumference direction interval of fluted disc, fluted disc 8 pass through the tip of a plurality of screw fixed connection at installation cover 7, second plane latch 9 pass through the bolt fastening in the blind hole of spliced pole 1.
The working principle is as follows: as shown in fig. 2-6, when adjacent drill rods are connected, the connecting hole of the next drill rod is connected to the connecting column 1 of the previous drill rod in an aligned manner, at this time, the connecting sleeve 6 in the connecting hole is inserted into the blind hole of the connecting column 1, the drill rod is driven to rotate, so that the connecting hole 3 of the next drill rod is in threaded connection with the connecting column 1 of the previous drill rod, the connecting sleeve 6 extends into the blind hole at the same time until the connecting hole 3 is fastened with the connecting column 1 in a threaded connection manner, the first plane latch on the connecting sleeve 6 is connected to the second plane latch 9 in the blind hole in an aligned manner, and when the drill rods are tunneled, the torque force between the connecting hole 3 and the connecting column 1 can be shared between the inner screw rod 5 and the connecting sleeve 6 and between the first plane latch and the second plane latch 9, so that the thread damage of the torque force between the. When the drill rod is disassembled, one drill rod is reversely rotated, the inner screw rod 5 rotates along with the drill rod, and the rotation of the inner screw rod 5 can pull the first plane latch teeth to be not butted with the second plane latch teeth 9.
The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a twist drill rod, includes the twist rod body, the one end of the twist rod body be provided with the spliced pole, the other end of the twist rod body is provided with the connecting hole, is provided with the external screw thread on the spliced pole, be provided with in the connecting hole with the spliced pole on external screw thread assorted internal thread, its characterized in that: the connecting hole is internally provided with a torque transmission assembly, the torque transmission assembly comprises an inner screw rod and a connecting sleeve, one end of the inner screw rod is fixedly connected to the bottom of the connecting hole, the central axis of the inner screw rod is collinear with the central axis of the connecting hole, the connecting sleeve is sleeved on the inner screw rod and is in threaded connection with the inner screw rod, the end part of the connecting sleeve is provided with a first plane latch, the middle part of the connecting column is provided with a blind hole corresponding to the connecting sleeve, and the bottom of the blind hole is provided with a second plane latch corresponding to the first plane latch; when the connecting hole of the twist rod body is connected with the connecting column of the adjacent twist rod body in place, the first plane latch on the connecting sleeve is in butt joint and meshing with the second plane latch in the blind hole; the first plane latch comprises an installation sleeve and a fluted disc fixed at the end part of the installation sleeve, the inner hole of the installation sleeve is a polygonal hole, the end part of the connecting sleeve is provided with a polygonal shaft corresponding to the polygonal hole on the installation sleeve, the polygonal hole of the installation sleeve is sleeved on the polygonal shaft of the connecting sleeve, the outer diameter of the installation sleeve is matched with the outer diameter of the connecting sleeve, a plurality of countersunk holes are formed in the circumferential direction of the side wall of the installation sleeve at intervals, the polygonal shaft of the connecting sleeve is provided with connecting screw holes in one-to-one correspondence with the countersunk holes on the installation sleeve, each countersunk hole is internally provided with a fastening bolt, all the fastening bolts are hexagon socket head bolts, and when the fastening bolts are fixed in place, the heads of the fastening bolts do not protrude out of the outer surface of the installation sleeve.
2. A twist drill rod according to claim 1, wherein: the inner screw rod is connected to the bottom surface of the connecting hole through a flange plate, the inner screw rod is connected with the flange plate through welding, and the flange plate is connected with the connecting hole through a plurality of connecting bolts.
3. A twist drill rod according to claim 1, wherein: the meshing teeth on the fluted disc are arranged on the edge of the fluted disc at intervals along the circumferential direction of the fluted disc, and the fluted disc is fixedly connected to the end part of the mounting sleeve through a plurality of screws.
4. A twist drill rod according to claim 1, wherein: the second plane latch is fixed in the blind hole of the connecting column through a bolt.
5. A twist drill rod according to claim 1, wherein: the spiral rod body is a double-spiral drill rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198086.6A CN109882093B (en) | 2019-03-15 | 2019-03-15 | Twist drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198086.6A CN109882093B (en) | 2019-03-15 | 2019-03-15 | Twist drill rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109882093A CN109882093A (en) | 2019-06-14 |
| CN109882093B true CN109882093B (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910198086.6A Active CN109882093B (en) | 2019-03-15 | 2019-03-15 | Twist drill rod |
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| CN (1) | CN109882093B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552630A (en) * | 2019-10-15 | 2019-12-10 | 山东源运通矿山装备科技有限公司 | Electric coal drill rod |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057188Y (en) * | 2007-04-17 | 2008-05-07 | 中国石油天然气集团公司 | Non-thread type transmission shaft connecting structure |
| CN101509357A (en) * | 2009-03-10 | 2009-08-19 | 河南理工大学 | Double-power low spiral auger and its processing method |
| CN202810648U (en) * | 2012-08-30 | 2013-03-20 | 河北省电力勘测设计研究院 | Small-size twist drill machine |
| CN102839927B (en) * | 2012-10-12 | 2015-07-08 | 重庆大学 | High-pressure water seal dual-power auger stem |
| CN202990907U (en) * | 2012-11-05 | 2013-06-12 | 重庆艾肯机电设备有限公司 | Easily-disassembled blade drill rod |
| CN205638265U (en) * | 2016-04-07 | 2016-10-12 | 山东高原圣隆抽油杆有限公司 | Prevent turning round and cup joint sucker rod |
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| CN109882093A (en) | 2019-06-14 |
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Address after: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee after: Shandong Yanneng Taide Heavy Industry Co.,Ltd. Address before: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee before: ZOUCHENG YANKUANG TAIDE INDUSTRY & TRADE Co.,Ltd. |
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