CN202627968U - Diameter variable reaming while drilling device - Google Patents
Diameter variable reaming while drilling device Download PDFInfo
- Publication number
- CN202627968U CN202627968U CN 201220311765 CN201220311765U CN202627968U CN 202627968 U CN202627968 U CN 202627968U CN 201220311765 CN201220311765 CN 201220311765 CN 201220311765 U CN201220311765 U CN 201220311765U CN 202627968 U CN202627968 U CN 202627968U
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- CN
- China
- Prior art keywords
- piston
- piston rod
- knife rest
- wall
- positioning sleeve
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- Expired - Fee Related
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Abstract
The utility model discloses a diameter variable reaming while drilling device, and relates to petroleum machinery, in particular to the improvement of an underground reaming while drilling tool. The diameter variable reaming while drilling device comprises a body (1), an upper connector (2) and cutting cones (3); a ring table is arranged in the upper connector (2); a piston rod (5) and a piston positioning sleeve (6) are arranged in a pipe cavity of the body (1); differential pressure adjustment nozzles (7) which are communicated with the interior and the exterior of the pipe cavity are arranged on the part of the wall of the body (1), which is below the piston rod (5); a liquid injection hole (9) is formed on the part of the pipe wall of the piston rod (5), which is close to the lower end face of a piston (8); a spring (10) is pressed between the upper end face of the piston (8) and the ring table of the upper connector (2); the piston positioning sleeve (6) is sleeved on the piston rod (5) and is fixed at the upper end of the body (1); a tool rest (4) is provided with a sliding groove (12); and the tool slot wall of the body (1) is provided with a sliding block (13) which is matched with the sliding groove (12) on the tool rest (4). The diameter variable reaming while drilling device has the advantages of ingenious structure, convenience in control and flexible action.
Description
Technical field
The utility model relates to petroleum machinery, is specifically related to a kind of improvement that is used for down-hole enlarging while drilling instrument.
Background technology
The enlarging while drilling device is a kind of instrument that enlarges well when comprehensively creeping into, and in drilling process, has practiced thrift the number of times that makes a trip, and drilling efficiency is high.But existing reamer is the mechanical expansion formula, and the control tool arm opens, shrinks comparatively inconvenience in the actual well drilled process.
Summary of the invention
The utility model technical problem to be solved is: provide a kind of adopt pressure reduction control with brill type reamer.
The technical solution of the utility model is: it comprises body, top connection and cutting gear wheel, and the cutting gear wheel is fixed on the knife rest, and body is provided with is convenient to cut the cutter groove that gear wheel and knife rest launch and pack up; Be provided with the ring platform in the said top connection, top connection is opened relief hole and external communications on the wall of ring platform below, and said body is provided with piston rod and piston positioning sleeve in its tube chamber; The pressure reduction of body inside and outside the wall below the piston rod is provided with the connection tube chamber is regulated nozzle; Piston rod is the tubular body that its side face is provided with piston, and in be provided with liquid injection hole near the piston lower surface place, piston upper surface and top connection ring interstation have spring on the piston rod tube wall; The piston positioning sleeve is the cylindrical body that the uncovered other end of an end is provided with the piston rod through hole; The piston positioning sleeve is enclosed within on the piston rod and is fixed on the body upper end, forms the annular chamber of sealing between the inner chamber of piston positioning sleeve and piston lower surface, and the liquid injection hole on the piston rod tube wall is connected with the annular chamber of this sealing; Piston rod is provided with in the position of piston below and is used for the knife rest connecting portion that is hinged with knife rest; Knife rest is provided with chute, and the cutter cell wall of body is provided with chute with the knife rest full slide block that matches, when the annular chamber between piston positioning sleeve and piston lower surface during through liquid injection hole injection pressure liquid; Piston rod is up, and knife rest launches in up under the restriction of chute and slide block laterally.
The technique effect of the utility model is: it has, and structure is ingenious, control is convenient and the advantage of flexible movements.
Description of drawings
Fig. 1 is the sectional structure chart of the utility model;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1.
The specific embodiment
Like Fig. 1, shown in 2 and 3, but, comprise body 1, top connection 2 and cutting gear wheel 3 with brill type reducing reamer; Cutting gear wheel 3 is fixed on the knife rest 4, and body 1 is provided with is convenient to cut the cutter groove that gear wheel 3 and knife rest launch and pack up, and is provided with the ring platform in the said top connection 2; Top connection 2 is opened relief hole 4 and external communications on the wall of ring platform below; Said body 1 is provided with piston rod 5 and piston positioning sleeve 6 in its tube chamber, body 1 is provided with the pressure reduction that is communicated with inside and outside the tube chamber in the wall of piston rod 5 belows and regulates nozzle 7, and piston rod 5 is provided with the tubular body of piston 8 for its side face; On piston rod 5 tube walls in be provided with liquid injection hole 9 near piston 8 lower surfaces places; Piston 8 upper surfaces and top connection 2 ring interstations have spring 10, and piston positioning sleeve 6 is the cylindrical body that the uncovered other end of an end is provided with the piston rod through hole, and piston positioning sleeve 6 is enclosed within on the piston rod 5 and is fixed on body 1 upper end; Form the annular chamber of sealing between the inner chamber of piston positioning sleeve 6 and piston 8 lower surfaces; Liquid injection hole 9 on piston rod 5 tube walls is connected with the annular chamber of this sealing, and piston rod 5 is provided with in the position of piston 8 belows and is used for the knife rest connecting portion 11 that is hinged with knife rest 4, and knife rest 4 is provided with chute 12; The cutter cell wall of body 1 is provided with chute 12 with the knife rest 4 full slide block 13 that matches; When the annular chamber between piston positioning sleeve 6 and piston 8 lower surfaces when the liquid injection hole 9 injection pressure liquid, piston rod 5 is up, knife rest 4 launches in up under the restriction of chute 12 and slide block 13 laterally.
Said pressure reduction is regulated nozzle 7 and is made up of nozzle 14, nozzle cage 15, has open-work on said body 1 wall, and nozzle cage 15 is fixed in the open-work on body 1 wall, nozzle 14 dismountable being fixed in the nozzle cage 15.
Said piston rod 5 is for ease of the two-part structure of assembling, and said knife rest connecting portion 11 is enclosed within 5 liang of intersegmental junctions of piston rod and fixes with the connected mode that combines of shop bolt through Ka Tai and screw thread or Ka Tai and shop bolt or Ka Tai, screw thread.
The utility model takes corresponding sealing means to connect between the contact surface of each parts on demand, specifically referring to accompanying drawing 1.
On the basis of original enlarging while drilling device, improve its internal construction, change the flexible type of drive of tool arm, make this with the stable performance of brill type reamer, rational in infrastructure, realized that drill-following reamer creeps into the function of efficient reaming.
The new mode that adopts piston rod to be connected with tool arm through pressure reduction with brill type reamer makes its expansion, utilizes the compression spring to realize when resetting.Thereby the pressure reduction that in normal drilling process, utilizes liquid comes piston rod and piston that it vertically is moved drives opening of tool arm motion, and tool arm is along with reaming is cut in the drilling tool rotation, and spring will be compressed this moment; During termination of pumping, the spring reset of compression resets piston rod, and tool arm is retracted in the body.It is convenient that this reamer tool arm opens, shrinks control, replaceable, convenient for maintaining and stud with alloy column and wear-resisting composite sheet, and it is more optimized with personalized design makes its stock-removing efficiency higher.
Claims (3)
1. but with brill type reducing reamer; Comprise body (1), top connection (2) and cutting gear wheel (3); Cutting gear wheel (3) is fixed on the knife rest (4); Body (1) is provided with is convenient to cut the cutter groove that gear wheel (3) and knife rest launch and pack up, and it is characterized in that said top connection is provided with the ring platform in (2); Open relief hole (4) and external communications on the wall of top connection (2) Yu Huantai below; Said body (1) is provided with piston rod (5) and piston positioning sleeve (6) in its tube chamber, the wall of body (1) in piston rod (5) below is provided with and is communicated with the inside and outside pressure reduction adjusting nozzle (7) of tube chamber, and piston rod (5) is provided with the tubular body of piston (8) for its side face; On piston rod (5) tube wall in be provided with liquid injection hole (9) near piston (8) lower surface place; Piston (8) upper surface and top connection (2) ring interstation have spring (10), and piston positioning sleeve (6) is the cylindrical body that the uncovered other end of an end is provided with the piston rod through hole, and piston positioning sleeve (6) is enclosed within piston rod (5) and goes up and be fixed on body (1) upper end; Form the annular chamber of sealing between the inner chamber of piston positioning sleeve (6) and piston (8) lower surface; Liquid injection hole (9) on piston rod (5) tube wall is connected with the annular chamber of this sealing, and piston rod (5) is provided with in the position of piston (8) below and is used for the knife rest connecting portion (11) that is hinged with knife rest (4), and knife rest (4) is provided with chute (12); The cutter cell wall of body (1) is provided with chute (12) with knife rest (4) the full slide block (13) that matches; When the annular chamber between piston positioning sleeve (6) and piston (8) lower surface when liquid injection hole (9) the injection pressure liquid, piston rod (5) is up, knife rest (4) launches in up under the restriction of chute (12) and slide block (13) laterally.
2. but as claimed in claim 1 with brill type reducing reamer; It is characterized in that; Said pressure reduction is regulated nozzle (7) and is made up of nozzle (14), nozzle cage (15); Have open-work on said body (1) wall, nozzle cage (15) is fixed in the open-work on body (1) wall, and nozzle (14) is dismountable to be fixed in the nozzle cage (15).
3. but as claimed in claim 1 with brill type reducing reamer; It is characterized in that; Said piston rod (5) is for ease of the two-part structure of assembling, and said knife rest connecting portion (11) is enclosed within the intersegmental junction of piston rod (5) two and fixes with the connected mode that combines of shop bolt through Ka Tai and screw thread or Ka Tai and shop bolt or Ka Tai, screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311765 CN202627968U (en) | 2012-06-30 | 2012-06-30 | Diameter variable reaming while drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311765 CN202627968U (en) | 2012-06-30 | 2012-06-30 | Diameter variable reaming while drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627968U true CN202627968U (en) | 2012-12-26 |
Family
ID=47381176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311765 Expired - Fee Related CN202627968U (en) | 2012-06-30 | 2012-06-30 | Diameter variable reaming while drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476763A (en) * | 2017-09-06 | 2017-12-15 | 深圳市远东石油钻采工程有限公司 | A kind of new casing bottom enlarging while drilling device |
| CN109667544A (en) * | 2018-12-27 | 2019-04-23 | 中国水利水电科学研究院 | A kind of rock body drilled reamer and expanding method |
| CN110359846A (en) * | 2018-01-03 | 2019-10-22 | 西南石油大学 | A kind of nearly frameholst hole reaming tool |
-
2012
- 2012-06-30 CN CN 201220311765 patent/CN202627968U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107476763A (en) * | 2017-09-06 | 2017-12-15 | 深圳市远东石油钻采工程有限公司 | A kind of new casing bottom enlarging while drilling device |
| CN110359846A (en) * | 2018-01-03 | 2019-10-22 | 西南石油大学 | A kind of nearly frameholst hole reaming tool |
| CN109667544A (en) * | 2018-12-27 | 2019-04-23 | 中国水利水电科学研究院 | A kind of rock body drilled reamer and expanding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20180630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |