CN102601696A - Inner bore grinding device for oil drilling tool - Google Patents
Inner bore grinding device for oil drilling tool Download PDFInfo
- Publication number
- CN102601696A CN102601696A CN201210079638XA CN201210079638A CN102601696A CN 102601696 A CN102601696 A CN 102601696A CN 201210079638X A CN201210079638X A CN 201210079638XA CN 201210079638 A CN201210079638 A CN 201210079638A CN 102601696 A CN102601696 A CN 102601696A
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- motor
- shaft
- oil drilling
- grinding
- axle
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Abstract
The invention discloses an inner bore grinding device for an oil drilling tool, which comprises an air guide pipe, a middle joint, a motor, a shaft bushing, a shaft and a grinding wheel, which are axially connected in sequence. The middle joint is a pipe joint in a straight-through double-head threaded structure, and one end of the pipe joint is hermetically connected with the air guide pipe while the other end of the pipe joint is hermetically connected with an axial air inlet on a cylindrical motor shell. The motor shell and the shaft bushing are connected with each other and relatively static, the shaft is supported by an inner hole of the shaft bushing, one end of the shaft is rotatably directly connected with a rotor in the motor, the shaft end exposed out of the shaft bushing is a threaded section for axially mounting the grinding wheel, and the grinding wheel is connected with the shaft to form a rotary structure driven by the motor. Pressure air is used as a power source to drive the motor and the grinding wheel to rotate, the inner bore grinding device is simple in structure, small in radial dimension and favorable for miniaturization design, and since no power source is directly used, the inner bore grinding device is safe in operation and free of electric shock when extending into the oil drilling tool for grinding operation.
Description
Technical field
The present invention relates to a kind of grinding attachment, specifically, the present invention relates to a kind of grinding attachment that stretches into the oil drilling tools endoporus.
Background technology
Oil drilling tools is one of main tool of oil drilling, and its structure notable feature is a slender rectangular tube.Under the prior art condition, the endoporus of oil drilling tools adopts machine cut to machine usually.Because of the oil drilling tools diameter less than Φ 150mm, and reach 8000mm～10000mm, machine cut processing endoporus can not be accomplished in a step, prior art adopts segmentation cutting, areal survey technology, realizes conventional production in order to correction in time.In addition, reconditioning, replacing cutter also need suspend cut, and continuous Cutting Process is simple between this kind, and accords with production is actual, can effectively implement to produce.But a continuous cut is prone to cause inner hole wall to connect the tool marks mark, even defectives such as the eccentric shoulder of generation inequality and spiral grooves.When oil drilling tools was used for drilling well, the endoporus of oil drilling tools was the unique passage that send the down-hole under the logger, the hundreds of rice of the conventional probing of oil well, even more than the km.If there is above-mentioned defective in used oil drilling tools, the logger that send down then possibly be obstructed midway, thereby causes well logging work not accomplish smoothly.Reconditioning is to eliminate or reduce one of effective way of oil drilling tools inner hole defect; Existing arrangement for grinding is because of structural limitations, and body is thick, can not integral body stretch in the oil drilling tools endoporus; Can only be in aperture, two ends reconditioning blemish; The blemish that is in the endoporus the inside can not get effective reconditioning and handles, and this fault of construction causes application limitation, can not improve the workmanship of oil drilling tools endoporus comprehensively.
Summary of the invention
The present invention is primarily aimed at the deficiency of prior art, propose a kind of simple in structure, safe in utilization, radial dimension is little, rotation is strong, moves axially oil drilling tools endoporus arrangement for grinding easily, this device can freely stretch into the oil drilling tools endoporus and do reconditioning and handle.
The present invention realizes technical goal through following technical proposals.
Oil drilling tools endoporus arrangement for grinding, it comprises wireway, center tap, motor, axle sleeve, axle and the emery wheel that axially connects in order.Its improvements are: said center tap is the tube coupling of straight-through double thread structure, the be tightly connected wireway of 1000mm～6000mm of an end, the other end axial admission mouth on the cylindrical motor shell that is tightly connected.The shell of said motor is connected with axle sleeve and is static relatively; Axle is supporting with the axle sleeve endoporus; The rotor direct connection rotation that one end and motor are built-in, the shaft end that exposes from axle sleeve is the axial thread segment that emery wheel is installed, emery wheel connects and composes the rotary grinding structure that is driven by motor with axle.
The external diameter of emery wheel described in the said structure is less than the diameter of bore 15mm～30mm of oil drilling tools to be grinding.
The present invention compared with prior art has following good effect:
1, for making emery wheel, rotates by the drive power source motor simple in structure, the easy manufacturing with compressed air;
2, pneumatic rotational structure radial dimension is little, and miniaturized design is convenient to stretch into grinding in the oil drilling tools endoporus;
3, pneumatic structure does not directly use power supply, handling safety when stretching in the oil drilling tools grinding operation, and the operative employee does not have the sorrow of electric shock.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below according to accompanying drawing and combine embodiment that the present invention is described further.
Oil drilling tools endoporus arrangement for grinding shown in the drawings, it comprises wireway 1, center tap 2, motor 3, axle sleeve 4, axle 5 and the emery wheel 6 that axially connects in order.Said center tap 2 is the tube coupling of straight-through double thread structure, the be tightly connected wireway 1 of 1000mm～6000mm of an end, the other end axial admission mouth on cylindrical air motor 3 shells that is tightly connected.The shell of air motor 3 is connected with axle sleeve 4 and is static relatively; Axle 5 is supporting with axle sleeve 4 endoporus; One end and air motor 3 built-in rotor direct connections rotate; Be the axial thread segment that emery wheel 6 is installed from axle 5 ends that axle sleeve 4 exposes, emery wheel 6 connects and composes the rotary grinding structure that is driven by air motor 3 with axle 5.Present embodiment oil drilling tools endoporus to be grinding is Φ 50.8mm; The drill collar of long 9600mm; In order to accomplish that the defective in the drill collar bore can both obtain reconditioning, select for use the wireway 1 of long 6000mm to introduce pressure gas source, the wireway 1 of this length can extend into the drill collar bore middle part from two ends respectively.In addition, emery wheel 6 overall diameters are than the little 15mm of drill collar internal diameter.The present invention adopts pneumatic structure, and it is little to remove radial dimension, helps outside the miniaturized design, and accomplishes directly not use power supply, handling safety when stretching in the oil drilling tools grinding operation, and the operative employee does not have the sorrow of electric shock.
Claims (2)
1. oil drilling tools endoporus arrangement for grinding, it comprises wireway (1), center tap (2), motor (3), axle sleeve (4), axle (5) and the emery wheel (6) that axially connects in order; It is characterized in that: said center tap (2) is the tube coupling of straight-through double thread structure, the be tightly connected wireway (1) of 1000mm～6000mm of an end, the other end axial admission mouth on cylindrical motor (3) shell that is tightly connected; The shell of said motor (3) is connected with axle sleeve (4) and is static relatively; Axle (5) is supporting with axle sleeve (4) endoporus; The rotor direct connection rotation that one end and motor (3) are built-in; Be the axial thread segment that emery wheel (6) is installed from axle (5) end that axle sleeve (4) exposes, emery wheel (6) connects and composes the rotary grinding structure that is driven by motor (3) with axle (5).
2. oil drilling tools endoporus arrangement for grinding according to claim 1 is characterized in that: said emery wheel (6) external diameter is less than the diameter of bore 15mm～30mm of oil drilling tools to be grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079638XA CN102601696A (en) | 2012-03-23 | 2012-03-23 | Inner bore grinding device for oil drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079638XA CN102601696A (en) | 2012-03-23 | 2012-03-23 | Inner bore grinding device for oil drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102601696A true CN102601696A (en) | 2012-07-25 |
Family
ID=46519665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210079638XA Pending CN102601696A (en) | 2012-03-23 | 2012-03-23 | Inner bore grinding device for oil drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102601696A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325368A (en) * | 2014-10-24 | 2015-02-04 | 嘉善五洲无油轴承有限公司 | Miniature hole grinding mechanism |
| CN105081906A (en) * | 2015-07-31 | 2015-11-25 | 余康军 | Novel grinding tool for inner bore |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02311254A (en) * | 1989-05-23 | 1990-12-26 | Nisshin Steel Co Ltd | Internal bead grinder for small size tube |
| CN201609857U (en) * | 2009-12-28 | 2010-10-20 | 江阴德玛斯特钻具有限公司 | Handheld drill stem inner bore sander |
| CN201848731U (en) * | 2010-10-18 | 2011-06-01 | 扬州诚德钢管有限公司 | Internal grinding machine of heavy caliber seamless steel pipe |
| KR101091940B1 (en) * | 2009-07-06 | 2011-12-13 | 한국주철관공업주식회사 | Inside grinding apparatus of cast iron pipe with ellipse or curved shape |
| CN202479907U (en) * | 2012-03-23 | 2012-10-10 | 江苏曙光华阳钻具有限公司 | Inner bore grinding device for petroleum drill |
-
2012
- 2012-03-23 CN CN201210079638XA patent/CN102601696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02311254A (en) * | 1989-05-23 | 1990-12-26 | Nisshin Steel Co Ltd | Internal bead grinder for small size tube |
| KR101091940B1 (en) * | 2009-07-06 | 2011-12-13 | 한국주철관공업주식회사 | Inside grinding apparatus of cast iron pipe with ellipse or curved shape |
| CN201609857U (en) * | 2009-12-28 | 2010-10-20 | 江阴德玛斯特钻具有限公司 | Handheld drill stem inner bore sander |
| CN201848731U (en) * | 2010-10-18 | 2011-06-01 | 扬州诚德钢管有限公司 | Internal grinding machine of heavy caliber seamless steel pipe |
| CN202479907U (en) * | 2012-03-23 | 2012-10-10 | 江苏曙光华阳钻具有限公司 | Inner bore grinding device for petroleum drill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325368A (en) * | 2014-10-24 | 2015-02-04 | 嘉善五洲无油轴承有限公司 | Miniature hole grinding mechanism |
| CN105081906A (en) * | 2015-07-31 | 2015-11-25 | 余康军 | Novel grinding tool for inner bore |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |