CN210829110U - Quick detachable combination formula bore bit tail cover - Google Patents
Quick detachable combination formula bore bit tail cover Download PDFInfo
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- CN210829110U CN210829110U CN201921435362.8U CN201921435362U CN210829110U CN 210829110 U CN210829110 U CN 210829110U CN 201921435362 U CN201921435362 U CN 201921435362U CN 210829110 U CN210829110 U CN 210829110U
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- tail cover
- cover body
- borer
- bore bit
- tail
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Abstract
The utility model relates to a ground anchor technical field, concretely relates to quick detachable combination formula borer tail cover, including the bore bit tail cover body, the external diameter of bore bit tail cover body coupling stock end is less than the external diameter of bore bit tail cover body coupling rig output shaft end, and bore bit tail cover body coupling stock end has laid lantern ring and solid fixed ring in proper order, the lantern ring is connected stock end clearance fit with the bore bit tail cover body, gu fixed ring can dismantle with the bore bit tail cover body and be connected, logical groove has been seted up to bore bit tail cover body coupling stock end symmetry. The utility model discloses combination formula borer tail cover, simple structure, convenient and practical, the setting that leads to the groove makes borer tail cover body coupling anchor rod end take place slight elastic deformation by the vibration when can letting the rig reverse, can make the stock separate with the borer tail cover body easily to shorten the auxiliary time that borer tail cover was dismantled greatly, improve the engineering progress.
Description
Technical Field
The utility model relates to a ground anchor technical field, concretely relates to quick detachable combination formula borer tail cover.
Background
In the self-drilling type anchor rod construction process, the hollow anchor rod needs to be driven into a rock body, but due to the difference of design depths, the hollow anchor rods with different lengths and quantities need to be continuously connected for prolonging the drill rod. When a drill rod needs to be continuously connected, the power head of the drilling machine firstly rotates reversely, so that the drill rod tail sleeve connected with the output end of the drilling machine is separated from the previous section of anchor rod body, and then the next section of anchor rod is installed and continuously connected. But in the actual operation in-process, the borer tail cover is difficult for nevertheless taking place to break away from with the cavity body of rod when the rig reverses, but has taken place to break away from with the rig output, and is different with the expectation result, leads to unable normally continuing to connect the cavity body of rod, can only rely on artifical the dismantlement again, and the dismantlement time is leveled with the time of creeping into even, and efficiency is very low, has seriously influenced the whole progress of construction.
Disclosure of Invention
The utility model aims to provide a quick detachable combination formula borer tail cover to the difficult phenomenon that breaks away from rather than taking place to break away from with the rig output with the body of rod of borer tail cover.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a quick detachable combination formula bore rod tail cover, includes the bore rod tail cover body, the external diameter of bore rod tail cover body coupling stock end is less than the external diameter of bore rod tail cover body coupling rig output shaft end, and the bore rod tail cover body coupling stock end has laid lantern ring and solid fixed ring in proper order, the lantern ring is connected the stock end clearance fit with the bore rod tail cover body, gu fixed ring and bore rod tail cover body can dismantle the connection, bore rod tail cover body coupling stock end symmetry has seted up logical groove.
Preferably, the inner wall of the collar is smooth.
Preferably, the terminating end of the through groove is an arc hole.
Preferably, the fixing ring is provided with a bulge.
Preferably, the detachable connection is that a section of external thread is arranged at the end of the drill bit shank sleeve body connected with the anchor rod, an internal thread matched with the external thread at the end of the drill bit shank sleeve body connected with the anchor rod is arranged on the inner wall of the fixing ring, and the fixing ring is screwed at the end of the drill bit shank sleeve body connected with the anchor rod.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the combined drill rod tail sleeve has simple structure, is convenient and practical, and the arrangement of the through groove can lead the end of the drill rod tail sleeve body connected with the anchor rod to generate slight elastic deformation by vibration when the drilling machine rotates reversely, and lead the anchor rod to be easily separated from the drill rod tail sleeve body, thereby greatly shortening the auxiliary time for disassembling the drill rod tail sleeve and improving the engineering progress; the drill bit shank sleeve body provided with the through groove is sleeved with the lantern ring, so that the drill bit shank sleeve body is prevented from being deformed or broken due to vibration in the drilling process, and the service life of the drill bit shank sleeve body is prevented from being influenced; the end of the through groove is an arc hole, so that stress caused by vibration of the drill bit shank sleeve body in the drilling process can be dispersed, and the service life of the drill bit shank sleeve body is prolonged.
Drawings
Fig. 1 is a schematic structural view of the combined drill rod tail sleeve easy to disassemble.
Fig. 2 is a top view of the combined drill rod tail sleeve easy to disassemble.
Fig. 3 is a schematic cross-sectional view of a-a in fig. 2 of a readily detachable combined drill rod tail sleeve of the present invention.
Fig. 4 is a schematic structural view of a drill bit shank sleeve body in the easily detachable combined drill bit shank sleeve of the present invention.
Fig. 5 is a schematic structural view of the fixing ring in the easily detachable combined drill rod tail sleeve of the present invention.
In the drawings, the reference numbers: 1 is a drill shank sleeve body, 2 is a lantern ring, 3 is a fixing ring, and 4 is a through groove.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, a readily detachable combined drill rod tail sleeve comprises a drill rod tail sleeve body 1, wherein the outer diameter of the end, connected with an anchor rod, of the drill rod tail sleeve body 1 is smaller than the outer diameter of the end, connected with an output shaft of a drilling machine, of the drill rod tail sleeve body 1, a lantern ring 2 and a fixing ring 3 are sequentially arranged at the end, connected with the anchor rod, of the drill rod tail sleeve body 1, the lantern ring 2 is in clearance fit with the end, connected with the drill rod tail sleeve body 1, of the drill rod tail sleeve body 1, the fixing ring 3 is detachably connected with.
The through groove 4 is arranged to enable the drill shank sleeve body 1 to be slightly elastically deformed when the drill rig rotates reversely by vibration, so that the anchor rod can be easily separated from the drill shank sleeve body 1. The drill bit shank sleeve body 1 with the through groove 4 is sleeved with the lantern ring 2, so that the drill bit shank sleeve body 1 is prevented from being deformed or broken due to vibration in the drilling process, and the service life of the drill bit shank sleeve body 1 is prevented from being influenced.
The inner wall of the lantern ring 2 is smooth, so that when the anchor rod is required to be separated from the drill shank sleeve body 1, the lantern ring 2 can smoothly slide out, and the drill shank sleeve body is convenient to disassemble.
It should be noted that the material hardness of the collar 2 should be above 60HRC, such as hard alloy steel, to ensure sufficient strength and hardness.
The end of the through groove 4 is an arc hole, which can disperse the stress caused by the vibration of the drill bit shank sleeve body 1 in the drilling process, thereby prolonging the service life of the drill bit shank sleeve body 1.
The fixed ring 3 is provided with the bulges which can be used as a handle, so that the fixed ring 3 is convenient to disassemble.
As an implementation manner, the detachable connection provided in this embodiment is a threaded connection, that is, a section of external thread is formed at the end of the drill bit shank sleeve body 1 connected to the anchor rod, an internal thread matched with the external thread at the end of the drill bit shank sleeve body 1 connected to the anchor rod is formed on the inner wall of the fixing ring 3, and the fixing ring 3 is screwed on the drill bit shank sleeve body 1 connected to the anchor rod. Of course, the fixing ring 3 may be a clamp, and after the drill bit shank sleeve body 1 is sleeved with the lantern ring 2, the lantern ring 2 may be pressed by the fixing of the clamp, so as to prevent the lantern ring 2 from loosening during drilling.
When the drill bit sleeve body 1 is used for connecting an anchor rod with an output shaft of a drilling machine, after the anchor rod is screwed into the drill bit sleeve body 1, the high-hardness lantern ring 2 is sleeved on the drill bit sleeve body 1, and then the fixing ring 3 is screwed on the drill bit sleeve body 1 to compress the smooth lantern ring. When the drill shank sleeve body 1 is required to be separated from the anchor rod, the fixing ring 3 is screwed, the lantern ring 2 and the fixing ring 3 slide backwards to the anchor rod, the drilling machine is started to rotate reversely, and due to the arrangement of the through grooves 4, the drilling machine vibrates to enable the drill shank sleeve body 1 to be connected with the end of the anchor rod to generate slight elastic deformation, so that the anchor rod is easily separated from the drill shank sleeve body 1.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and it is obvious to those skilled in the art that other embodiments can be easily made by replacement or change according to the technical content disclosed in the present specification, and therefore, all changes and modifications made in the principle of the present invention should be included in the claims of the present invention.
Claims (5)
1. The utility model provides a quick detachable combination formula borer tail cover, includes the borer tail cover body (1), its characterized in that, the external diameter that borer tail cover body (1) is connected the stock end is less than the external diameter that borer tail cover body (1) is connected the rig output shaft end, and borer tail cover body (1) is connected the stock end and has been laid lantern ring (2) and solid fixed ring (3) in proper order, the stock end clearance fit is connected with borer tail cover body (1) in the lantern ring (2), gu fixed ring (3) can dismantle with borer tail cover body (1) and be connected, logical groove (4) have been seted up to borer tail cover body (1) connection stock.
2. A readily detachable combined drill rod sleeve according to claim 1, characterized in that the inner wall of the collar (2) is smooth.
3. The easily detachable combined type bit shank sleeve as claimed in claim 1, wherein the terminating end of the through groove (4) is a circular arc hole.
4. The easy-to-detach combined drill tail sleeve as claimed in claim 1, characterized in that the fixing ring (3) is provided with protrusions.
5. The easy-to-detach combined drill rod tail sleeve as claimed in claim 1, wherein the detachable connection is that an external thread is arranged at the end of the drill rod tail sleeve body (1) connected with the anchor rod, an internal thread matched with the external thread at the end of the drill rod tail sleeve body (1) connected with the anchor rod is arranged on the inner wall of the fixing ring (3), and the fixing ring (3) is screwed on the end of the drill rod tail sleeve body (1) connected with the anchor rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921435362.8U CN210829110U (en) | 2019-08-31 | 2019-08-31 | Quick detachable combination formula bore bit tail cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921435362.8U CN210829110U (en) | 2019-08-31 | 2019-08-31 | Quick detachable combination formula bore bit tail cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829110U true CN210829110U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921435362.8U Active CN210829110U (en) | 2019-08-31 | 2019-08-31 | Quick detachable combination formula bore bit tail cover |
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| Country | Link |
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| CN (1) | CN210829110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360524A (en) * | 2020-11-09 | 2021-02-12 | 紫金矿业集团股份有限公司 | Advanced support method for plate-bonded residual ore pile roadway |
-
2019
- 2019-08-31 CN CN201921435362.8U patent/CN210829110U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360524A (en) * | 2020-11-09 | 2021-02-12 | 紫金矿业集团股份有限公司 | Advanced support method for plate-bonded residual ore pile roadway |
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