CN203081338U - Integral-type mining drill stem with rib - Google Patents
Integral-type mining drill stem with rib Download PDFInfo
- Publication number
- CN203081338U CN203081338U CN 201320071943 CN201320071943U CN203081338U CN 203081338 U CN203081338 U CN 203081338U CN 201320071943 CN201320071943 CN 201320071943 CN 201320071943 U CN201320071943 U CN 201320071943U CN 203081338 U CN203081338 U CN 203081338U
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- rib
- drilling rod
- drill stem
- thickening
- integral
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Abstract
The utility model discloses an integral-type mining drill stem with a rib. The integral-type mining drill stem with the rib is characterized by comprising an integral-type drill stem body (1), wherein the two ends of the drill stem body (1) are respectively a female connector part (2) with a local thickening pipe wall and a male connector part (4) with a local thickening pipe wall, a middle pipe body (3) is arranged between the female connector part (2) and the male connector part (4), a rib (7) is arranged on the drill stem body (1), and the rib (7) and the drill stem body (1) are integrated into a whole. The drill stem is of an integral structure; the thicknesses of the thickening pipe walls are thickened through a first transition section and a second transition section, so that the stress concentration is reduced, the deformation in the pipe wall thickening process is reduced, the machining quality of the pipe walls is ensured, the whole strength is enhanced, and the service life is prolonged; and the thickening of the pipe walls is convenient for follow-up thread machining of the stem body, and thus the technological process is simplified, the utilization rate of materials is increased, the production cost is effectively reduced, and the using strength of the rib formed through direct machining can be enhanced.
Description
Technical field
The utility model relates to the mining drilling rod of a kind of monolithic rib, belongs to the ore extraction equipment technical field.
Background technology
The now present mining drilling rod that uses, basically form by male joint, middle pipe fitting and three parts of female joint, because mining drilling rod inner chamber cavity is difficult with machine-shaping, so in the manufacturing process, generally adopt after male joint, middle pipe fitting and three part completion of processing of female joint, adopt the mode of welding, the three is linked together, make its one-tenth as a whole.But the mode of occupation to drilling rod is followed the tracks of discovery, and still there is the situation of strength deficiency in the mining drilling rod after the welding.During use, can occur from the situation of weld fracture.Mining drilling rod generally adopts the seamless steel pipe manufacturing, but tube wall can not be too thick, if the too thick cost that increases first of tube wall, second owing to, would increase the load of rig from the great work that is unfavorable for rig on the contrary.Structural requirement from drilling rod, for guaranteeing the connection of drilling rod, the two ends of drilling rod must process the male and female screw thread, can't process but the seamless steel pipe tube wall is thin, mainly be at two ends welding round steel at present, finishes the car hole by machine again, the operation of car male and female screw thread, because this technique process many and complicated (needing repeatedly heat treatment), production efficiency is very low, and waste of material is big simultaneously.Also have a kind of mode that adopts pipe end heating back to forge to realize overstriking at present, but this process equipment have high input, energy consumption is big, is mainly used in the production of heavy caliber petroleum drilling rod, is unsuitable for producing the less mining drilling rod of caliber.Rib (blade) on the drilling rod that uses is after the rib machine-shaping at present, welds together with the drilling rod body again, and its rib is narrower, in the use, damages easily through the rib that welds, and splits away off from the drilling rod body.
Summary of the invention
The purpose of this utility model is: provide a kind of monolithic rib mining drilling rod, solve in use, thin by seamless steel pipe tube wall in easy fracture of the drilling rod of welding and the process, the problem and the rib that are difficult to machining screw damage easily, the problem that splits away off from the drilling rod body.
The technical solution of the utility model: the mining drilling rod of a kind of monolithic rib, include all-in-one-piece drilling rod body, the two ends of this drilling rod body are respectively the female joint part of local thickening tube wall and the male joint part of local extra strong pipe wall, in the middle of female joint part and the male joint part is middle pipe shaft, on the drilling rod body rib is arranged, rib and drilling rod body are as a whole.
The above-mentioned mining drilling rod of monolithic rib, described male joint part, female joint partly are that middle pipe shaft thickening forms.
The above-mentioned mining drilling rod of monolithic rib, the drilling rod body two ends inwall of described local thickening tube wall is respectively equipped with first changeover portion, second changeover portion.
The beneficial effects of the utility model: this drilling rod is a monolithic construction, first changeover portion on the drilling rod and second changeover portion, the thickening tube wall is carried out thickness to be increased gradually, reducing to thicken tube wall concentrates with the stress of the pipe shaft connecting portion of not thickening, and can reduce the deflection of thickening in the tube wall process, guarantee the crudy of drill pipe thickening tube wall, in use, can increase its bulk strength, expanded service life; By the drill rocker end upsetting forming method, pipe end to the drilling rod workpiece carries out spot heating, then by axial pressure, the mode of roll extrusion radially, tube wall thickening with pipe end, be convenient to follow-up shaft be carried out screw thread processing, in the process, processing technology has been simplified process procedure, improve stock utilization, effectively reduced cost of production; At the rib that the drilling rod body directly processes, replaced being welded on the rib on the pipe shaft, rib and pipe shaft are as a whole, and difficult drop-off, damage improve its working strength.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
1-drilling rod body, 2-female joint part, pipe shaft in the middle of the 3-, 4-male joint part, 5-first changeover portion, 6-second changeover portion, 7-rib.
The specific embodiment
Embodiment of the present utility model: the mining drilling rod of monolithic rib, as shown in Figure 1, include all-in-one-piece drilling rod body 1, the two ends of this drilling rod body 1 are respectively the female joint part 2 and the male joint part 4 of thickening tube wall, in the middle of female joint part 2 and the male joint part 4 is middle pipe shaft 3, rib 7 is arranged on the drilling rod body 1, and rib 7 is as a whole with drilling rod body 1.
In the manufacturing process, drilling rod body 1 is processed by the drill rocker end upsetting forming method.Adopt the mode of hot roll extrusion, drilling rod is carried out spot heating distortion with seamless pipe, take the mode of radially roll extrusion, axial pressure to thicken, locally-shaped technology, make internal diameter, external diameter that change to a certain degree take place, reach the purpose of end upsetting.The mode that adopts milling roller to carry out roll extrusion can simplified apparatus, reduces input cost, can also reduce the energy consumption in the manufacturing process.This has just solved not of uniform size the causing of the middle cavity part of female joint part 2, middle pipe shaft 3 and male joint part 4 correspondences on the drilling rod body 1, the problem that is difficult to carry out whole machine-shaping.Make female joint part 2, middle pipe shaft 3 and male joint part 4 not need to process separately, by being welded to form an integral body, improved the bulk strength of drilling rod then, avoid it the often phenomenon of fracture in use to occur.Drilling rod is in the process of tube wall thickening, mainly be that the tube wall of female joint part 2 and male joint part 4 is thickeied, form one first changeover portion 5 in the thickening process between female joint part 2 and the middle pipe shaft 3, form one second changeover portion 6 between male joint part 4 and the middle pipe shaft 3, first changeover portion 5 on the drilling rod and second changeover portion 6, the thickening tube wall is carried out thickness to be extended, reducing to thicken tube wall concentrates with the stress of the pipe shaft connecting portion of not thickening, and can reduce the deflection of thickening in the tube wall process, guarantee the crudy of drill pipe thickening tube wall, in use, can increase its bulk strength, expanded service life.After treating the machine-shaping of whole drilling rod pipe shaft, on pipe shaft, directly process spiral helicine rib 7 again, the rib effect of welding on the rib 7 that directly processes and the present pipe shaft is identical, but the rib that directly processes 7 is as a whole with drilling rod body 1, in use, can improve its working strength, avoid it in use, split away off from pipe shaft.
Claims (3)
1. mining drilling rod of monolithic rib, it is characterized in that: include all-in-one-piece drilling rod body (1), the two ends of this drilling rod body (1) are respectively the female joint part (2) of local thickening tube wall and the male joint part (4) of local extra strong pipe wall, in the middle of female joint part (2) and the male joint part (4) is middle pipe shaft (3), rib (7) is arranged on the drilling rod body (1), and rib (7) is as a whole with drilling rod body (1).
2. the mining drilling rod of monolithic rib according to claim 1 is characterized in that: male joint part (4), female joint part (2) form for middle pipe shaft (3) thickening.
3. the mining drilling rod of monolithic rib according to claim 1 is characterized in that: drilling rod body (1) the two ends inwall of local thickening tube wall is respectively equipped with first changeover portion (5), second changeover portion (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071943 CN203081338U (en) | 2013-02-07 | 2013-02-07 | Integral-type mining drill stem with rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071943 CN203081338U (en) | 2013-02-07 | 2013-02-07 | Integral-type mining drill stem with rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081338U true CN203081338U (en) | 2013-07-24 |
Family
ID=48827188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071943 Expired - Fee Related CN203081338U (en) | 2013-02-07 | 2013-02-07 | Integral-type mining drill stem with rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944557A (en) * | 2019-04-02 | 2019-06-28 | 中煤科工集团西安研究院有限公司 | Bionical pin end and its manufacturing procedure with spine structure characteristic |
| CN111015122A (en) * | 2019-12-27 | 2020-04-17 | 中煤科工集团重庆研究院有限公司 | High-strength integral milling groove spiral drill rod processing technology |
-
2013
- 2013-02-07 CN CN 201320071943 patent/CN203081338U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944557A (en) * | 2019-04-02 | 2019-06-28 | 中煤科工集团西安研究院有限公司 | Bionical pin end and its manufacturing procedure with spine structure characteristic |
| CN109944557B (en) * | 2019-04-02 | 2020-07-10 | 中煤科工集团西安研究院有限公司 | Bionic male connector with structural characteristics of spine and processing procedure thereof |
| CN111015122A (en) * | 2019-12-27 | 2020-04-17 | 中煤科工集团重庆研究院有限公司 | High-strength integral milling groove spiral drill rod processing technology |
| CN111015122B (en) * | 2019-12-27 | 2021-09-07 | 中煤科工集团重庆研究院有限公司 | High-strength integral milling groove spiral drill rod processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guiyang Linhai Machinery Manufacturing Co.,Ltd. Assignor: Jiang Zuocheng Contract record no.: 2015520000012 Denomination of utility model: Integral-type mining drill stem with rib Granted publication date: 20130724 License type: Exclusive License Record date: 20150608 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20220207 |