CN201883962U - Plasma-clad wear-resistant spiral drill stem - Google Patents
Plasma-clad wear-resistant spiral drill stem Download PDFInfo
- Publication number
- CN201883962U CN201883962U CN201020685037XU CN201020685037U CN201883962U CN 201883962 U CN201883962 U CN 201883962U CN 201020685037X U CN201020685037X U CN 201020685037XU CN 201020685037 U CN201020685037 U CN 201020685037U CN 201883962 U CN201883962 U CN 201883962U
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- wear
- resisting
- drill stem
- drilling rod
- spiral ridge
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Abstract
The utility model relates to a plasma-clad wear-resistant spiral drill stem, which can effectively bring away coal dust tightly attached to the drill stem to dredge a pneumatic or hydraulic dust removing passage by means of spiral power when hole collapse takes place in a drilling process, improves the drilling speed and the hole forming length and also improves the mechanical strength, the rigidity and the wear resistance and prolongs the service life. According to the technical scheme provided by the utility model, the spiral drill stem comprises a male adapter, a thick-skin seamless steel tube, a clad wear-resistant spiral rib and a female adapter, wherein the male adapter and the female adapter are arranged at the two ends of the thick-skin seamless steel tube respectively and welded together to form a polished drill stem through friction; the surface of the polished drill stem is provided with the clad wear-resistant spiral rib; and the clad wear-resistant spiral rib is metallurgically combined with the surface of the polished drill stem. The spiral drill stem has a novel, unique, scientific and rational structure, is easy to produce and manufacture, and has high wear resistance, mechanical strength and rigidity and long service life.
Description
One, technical field
The utility model relates to the colliery and visits water and gas drainage under suction equipment, the wear-resisting auger stem of particularly a kind of plasma cladding.
Two, background technology
The efficient drilling technology of deep hole is one of key technology of coal mine gas extraction, and drilling depth is determining the scope and the efficient of gas pumping.Because the condition of coal seam occurrence difference of each department, the complexity difference of coal seam deep well drilling is very big.Weak seam and gas are projecting coal bed to occupy significant proportion in China's minable coal seam, hole in this class coal seam, and especially in the high zone of geostatic stress, occur easily collapsing hole and bit freezing phenomenon cause the Completion of Drilling Hole rate low, and depth of pore forming is shallow.Weak seam and projecting coal bed in to carry out drilling construction be one of difficult problem of domestic and international drilling technique always.
The present domestic gas drainage under suction mode of creeping into commonly used has light face rod boring, (the general drill bit of this drilling method is bigger than the diameter of drilling rod for wind-force or waterpower chip removal, rely on high pressure draught or current to discharge the space of drilling cuttings between drilling rod and drill hole wall) and the helical blade rod boring, rely on the chip removal of screw machine power.Light face drilling rod wind-force or waterpower chip removal are not having gas outstanding, and the drilling speed degree is fast in the higher coal seam of the hardness factor of coal, hole quality good, boring is also deep.But at weak seam with gas is projecting coal bed when creeping into, because factors such as geostatic stress, gas pressure, drilling rod vibrations, the hole of collapsing, part in boring, often occurs and embrace the drilling rod phenomenon, this moment, wind-force or waterpower channel of chip removal stopped up, the lighter's bit freezing, lose brill, lead to serious accident because of frictional heating causes coal and gas combustion when serious.Use the helical blade rod boring, the helical blade chip removal needs powerful machinery to move power, occurs inhaling the bar drill phenomenon of boring, break when getting into certain degree of depth easily, and boring length is restricted.
For solving such difficult problem, expert, scholar and field technician are constantly making great efforts research.As license number is 200610111830.5 disclosed a kind of outburst coal seam hole temperature-reducing drilling tool and drilling methods, provide in this patent a kind of on light face drilling rod is got on the bus the novel drilling rod of spiral grooves.This kind drilling rod has played mediation in actual applications because of the blocked main channel of chip removal effect in the hole of collapsing, but because groove has caused the drilling rod basal area to reduce, adds factors such as stress is concentrated, wearing and tearing, and drilling rod is frangibility more.Patent publication No. is 200910064357.5 to disclose double-power low spiral auger and processing method thereof.Provide two kinds of methods to make auger stem in this patent, a kind of is to become one or more straight line fin and then heating to be reversed into the spiral ridge drilling rod steel pipe rolling, and another kind is with special high rigidity mould normal optical face drilling rod roller (squeezing) to be pressed into the spiral ridge drilling rod.The auger stem that these two kinds of methods are made can both rely on low spiral power to dredge main channel of chip removal, increase and creep into length, but its shortcoming is the processing cost height, drilling rod formed spiral ridge in surface and drilling rod main body are low with a kind of material hardness, to be worn very soon at drilling process, can not really satisfy the needs on producing, thus the improvement on the drilling rod and innovate imperative.
Three, summary of the invention
At above-mentioned situation, for overcoming the defective of existing drilling rod, the purpose of the utility model, make the wear-resisting auger stem of a kind of plasma cladding exactly, can effectively solve when drilling process collapses the hole, rely on spiral power effectively to take away the ickings that hugs on drilling rod, mediation wind-force or waterpower channel of chip removal, improve rate of penetration and become hole length, also improved mechanical strength, rigidity and the anti-wear performance of drilling rod simultaneously, prolong its application life.
The technical scheme that the utility model solves is, comprise male connection, pachydermia seamless steel pipe, the wear-resisting spiral ridge of cladding and female adapter, described male connection and female adapter are contained in the two ends of pachydermia seamless steel pipe respectively, and together through friction welding, constitute light face drilling rod, light face drilling rod has the wear-resisting spiral ridge of cladding on the surface, and the surface metallurgic of wear-resisting spiral ridge and light face drilling rod combines.
The utility model novel structure, uniqueness, scientific and reasonable, easily manufacture, anti-wear performance is good, mechanical strength and rigidity are big, are effective to bore gas extraction hole or visit the water hole in weak seam and gas are projecting coal bed, have the function of assisting deslagging, the cinder that the Kong Shike that collapses when holing effectively will embrace on drilling rod relies on the spiral ridge machine power to drain, mediation air-flow or current slagging channel reduce or eliminate and embrace brill, bit freezing, the phenomenon of the breaking of rod.When being used for the rock stratum and creeping into, wear-resisting spiral ridge can avoid drilling rod directly to contact with the rock hole wall, obviously prolongs the application life of drilling rod.
Four, description of drawings
Accompanying drawing is a structural front view of the present utility model.
Five, the specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.
Provide by accompanying drawing, the utility model comprises male connection, pachydermia seamless steel pipe, the wear-resisting spiral ridge of cladding and female adapter, it is characterized in that, described male connection 1 and female adapter 4 are contained in the two ends of pachydermia seamless steel pipe 2 respectively, and together through friction welding, constitute light face drilling rod, the wear-resisting spiral ridge 3 of cladding is arranged on the light face drilling rod surface, the surface metallurgic of wear-resisting spiral ridge and light face drilling rod combines.
In order to guarantee result of use, the cross section of described wear-resisting spiral ridge is square or circular arc; Described wear-resisting spiral ridge is the spiral of projection on light face drilling rod total length external surface, or on one section external surface, or on the multistage external surface; Described wear-resisting spiral ridge also can be along run of steel and linearly is distributed on the light face drilling rod external surface.
Described male connection, pachydermia seamless steel pipe and female adapter are on same central axis.
The utility model is when implementing, described female adapter 4 is to be processed by medium carbon alloy steel (as 40Cr, 42CrMo), pachydermia seamless steel pipe 2 is to be made by the geologic drilling rod special steel pipe, male connection 1, pachydermia seamless steel pipe 2 and female adapter 4 usefulness friction-welding techniques weld together, and maintenance three's center on an axis.The wear-resisting spiral ridge 3 of described plasma cladding is to process with the plasma melting coating equipment, process is, the light face drilling rod that makes is installed on the special-purpose plasma melting coating equipment, under the effect of plasma panel energy line and under the control of control system, the surface of drilling rod and ceramal powder moment are melted synchronously, original position generates the wear-resisting spiral ridge 3 of plasma cladding, treats that blas is finished, and just normal optical face drilling rod is made the wear-resisting auger stem of plasma cladding.
In order to guarantee the cladding effect, described ceramal powder ground and drilling rod male connection 1, the material of pachydermia seamless steel pipe 2 and female adapter 4 is complementary, and the ceramal powder is by Cr, C, Si, B, Mn, Ni, Mo, Al
2O
3, Re (rare earth), Fe mix together and to form, proportioning sees the following form:
Alloy powder component list (wt% percentage by weight)
| Cr | C | Si | B | Mn | Ni | Al 2O 3 | Mo | Re | Surplus |
| 10～20 | 1.0～3.0 | 1.5～3.5 | 1.0～2.0 | 2.0～4.0 | 2.0～5.0 | 1.0～5.0 | 1.0～1.5 | 1.0～2.0 | Fe |
The cladding electric current of described plasma cladding special equipment is adjusted between 50～300A, and the width of the wear-resisting spiral ridge of plasma cladding is between 2～20mm, and height is between 1～10mm.
The utlity model has following useful technique effect:
(1) plasma cladding abrasion-resistance screw fin one step makes, and drilling rod does not have distortion, does not need the later stage alignment to process, and production efficiency height, cost are low.
(2) abrasion-resistance screw fin hardness height, anti-wear performance are good, and spiral ridge and drilling rod body are degree of depth metallurgical binding, and shock resistance is good, and obviously prolong the service life of drilling rod.
(3) increased the cross-sectional area of drilling rod behind the cladding abrasion-resistance screw fin, obviously improved mechanical strength and the rigidity of drilling rod, obviously reduced the breaking of rod and lose the brill phenomenon.
(4) Jia Gong wear-resisting auger stem is when weak seam and the projecting coal bed use of gas, under the double action of main chip removal power (wind-force or waterpower) and wear-resisting spiral ridge power-assist power, accelerates chip removal speed, from but improved rate of penetration.When the hole that occurs collapsing forms when boring the cave, rely on the motive force of wear-resisting spiral ridge, discharge the stifled ickings that bores, dredge main channel of chip removal, reduce bit freezing, lose and bore and breaking of rod phenomenon, prolong into hole length, improve hole quality.
(5) drilling rod uses in the rock stratum, and wear-resisting spiral ridge plays protects the footpath effect, can effectively avoid the direct friction of drilling rod and petrosal foramen hole wall, but the application life of significant prolongation drilling rod.
Claims (5)
1. wear-resisting auger stem of plasma cladding, comprise male connection, pachydermia seamless steel pipe, the wear-resisting spiral ridge of cladding and female adapter, it is characterized in that, described male connection (1) and female adapter (4) are contained in the two ends of pachydermia seamless steel pipe (2) respectively, and together through friction welding, constitute light face drilling rod, light face drilling rod has the wear-resisting spiral ridge of cladding (3) on the surface, and the surface metallurgic of wear-resisting spiral ridge and light face drilling rod combines.
2. the wear-resisting auger stem of plasma cladding according to claim 1 is characterized in that the cross section of described wear-resisting spiral ridge is square or circular arc.
3. the wear-resisting auger stem of plasma cladding according to claim 1 is characterized in that, described wear-resisting spiral ridge is the spiral of projection on light face drilling rod total length external surface, or on one section external surface, or on the multistage external surface.
4. the wear-resisting auger stem of plasma cladding according to claim 1 is characterized in that described male connection, pachydermia seamless steel pipe and female adapter are on same central axis.
5. the wear-resisting auger stem of plasma cladding according to claim 1 is characterized in that described wear-resisting spiral ridge is for linearly to be distributed on the light face drilling rod external surface along run of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020685037XU CN201883962U (en) | 2010-12-28 | 2010-12-28 | Plasma-clad wear-resistant spiral drill stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020685037XU CN201883962U (en) | 2010-12-28 | 2010-12-28 | Plasma-clad wear-resistant spiral drill stem |
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| Publication Number | Publication Date |
|---|---|
| CN201883962U true CN201883962U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020685037XU Expired - Fee Related CN201883962U (en) | 2010-12-28 | 2010-12-28 | Plasma-clad wear-resistant spiral drill stem |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261225A (en) * | 2011-08-08 | 2011-11-30 | 平顶山市中矿机械制造有限公司 | Multifunctional outburst-prevention drill rod |
-
2010
- 2010-12-28 CN CN201020685037XU patent/CN201883962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261225A (en) * | 2011-08-08 | 2011-11-30 | 平顶山市中矿机械制造有限公司 | Multifunctional outburst-prevention drill rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANXI LU'AN ENVIRONMENTAL ENERGY DEVELOPMENT CO., Free format text: FORMER OWNER: HENAN IGOOD WEAR-RESISTING TECHNOLOGY CO., LTD. Effective date: 20120419 Owner name: HENAN IGOOD WEAR-RESISTING TECHNOLOGY CO., LTD. Effective date: 20120419 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Mingfang Inventor after: Zhang Wenping Inventor after: Wang Chunlin Inventor after: Ma Dongbin Inventor after: Chen Tao Inventor after: Zhang Bingquan Inventor after: Li Yunhong Inventor after: Li Erxing Inventor after: Zhang Haiyun Inventor before: Liu Mingfang Inventor before: Zhang Wenping Inventor before: Wang Chunlin Inventor before: Ma Dongbin Inventor before: Chen Tao Inventor before: Zhang Bingquan Inventor before: Li Erxing Inventor before: Zhang Haiyun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU MINGFANG ZHANG WENPING WANG CHUNLIN MA DONGBIN CHEN TAO ZHANG BINGQUAN LI ERXING ZHANG HAIYUN TO: LIU MINGFANG ZHANG WENPING WANG CHUNLIN MA DONGBIN CHEN TAO ZHANG BINGQUAN LI YUNHONG LI ERXING ZHANG HAIYUN Free format text: CORRECT: ADDRESS; FROM: 450002 ZHENGZHOU, HENAN PROVINCE TO: 046204 CHANGZHI, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120419 Address after: 046204 Changzhi high tech Development Zone, North Street, No. 65, Shanxi Co-patentee after: Henan IGOOD Wear-resisting Technology Co., Ltd. Patentee after: Shanxi Lu'an Environmental Energy Development Co., Ltd. Address before: Fengyang Zhengzhou high tech Industrial Development Zone, Henan province Zhengzhou city 450002 Street No. 17 Patentee before: Henan IGOOD Wear-resisting Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |