CN207554002U - A kind of junk mill - Google Patents
A kind of junk mill Download PDFInfo
- Publication number
- CN207554002U CN207554002U CN201721457951.7U CN201721457951U CN207554002U CN 207554002 U CN207554002 U CN 207554002U CN 201721457951 U CN201721457951 U CN 201721457951U CN 207554002 U CN207554002 U CN 207554002U
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- main body
- junk
- milling
- blade
- mounting base
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Abstract
The utility model discloses a kind of junk mills, and including main body and blade, multiple mounting bases are provided on the madial wall of main body；Mounting base is set gradually along the axial line of main body, and distance of the mounting base away from axial line is sequentially reduced along the top of bottom end to the main body of main body；Blade is mounted in mounting base, and the width of the milling bottom surface of blade is less than the wall thickness for treating milling junk.In work progress, the junk mill is connect with drilling tool, rotary tools, when when the top surface of milling junk touches blade, first by the blade in bottom (bottom refers to that the direction of its bottom end is arrived on the top along main body) mounting base to junk progress milling, since the milling bottom width of blade is less than the wall thickness for treating milling junk, the outer wall for treating milling junk is carried out milling by blade, so that the particle that milling generates is smaller, the clast that it is generated is also smaller, and so on, until entire junk milling is finished with the blade in different mounting bases, avoid the generation of lock of tool drilling.
Description
Technical field
The utility model is related to petroleum exploration and development workover treatment milling technical field more particularly to a kind of junk mills.
Background technology
Junk mill is a kind of common workover tool, for milling trouble of lost tool in hole.Junk mill of the prior art is in milling junk
During, often the cross-sectional area of the milling bottom surface of junk mill and junk completely attaches to, since contact area is big, in bit pressure and
Under the action of torque, easily generate larger clast, workover fluid can not be carried up, rest on junk mill major diameter position with
Between casing annulus, it be easy to cause lock of tool drilling.Especially for heavy wall junk, the risk of lock of tool drilling is especially high.
Therefore, the probability that the clast that is generated when how to reduce junk mill milling causes lock of tool drilling be those skilled in the art urgently
Technical problem to be solved.
Utility model content
The purpose of this utility model is to provide a kind of junk mill, causes lock of tool drilling to reduce the clast generated during junk mill milling
Probability.
To achieve these goals, the utility model provides following scheme：
A kind of junk mill including main body and blade, is provided with multiple mounting bases on the madial wall of the main body；
The mounting base is set gradually along the axial line of the main body, and distance of the mounting base away from the axial line
It is sequentially reduced along the top of bottom end to the main body of the main body；
The blade be mounted on the mounting base on, and the width of the milling bottom surface of the blade be less than treat milling junk
Wall thickness.
Preferably, in above-mentioned junk mill, transverse holes are provided on the side wall of the main body, the transverse holes are blind hole；
Longitudinal hole is provided in the mounting base, the longitudinal hole is connected with the blind hole, and the longitudinal hole with
The endoporus conducting of the madial wall composition of the main body.
Preferably, in above-mentioned junk mill, multiple stepped madial walls for being distributed in the main body of the mounting base.
Preferably, in above-mentioned junk mill, guide shoe is further included；
The guide shoe is mounted on the bottom end of the main body.
Preferably, in above-mentioned junk mill, top connection is further included；
The top connection is arranged on the top of the main body, for connecting drilling tool.
Preferably, in above-mentioned junk mill, the top connection is connect with the main body for integral type.
Preferably, in above-mentioned junk mill, installation sleeve is further included；
Main body described in the installation sleeve housing, and the installation sleeve can treat that milling junk introduces the peace by described
In sleeved.
Preferably, in above-mentioned junk mill, the installation sleeve is connect with the main body screw.
Preferably, in above-mentioned junk mill, the blade is diamond, cubic boron nitride composite piece PCBN or hard alloy
Blade.
Preferably, in above-mentioned junk mill, the number of the mounting base is 2-6, and the width of the mounting base is 5mm-
10mm, the width of the mounting base refer to length of the mounting base along the vertical direction of axis line；
The uniformly distributed 6-8 blades in the mounting base；
The negative rake of the blade is 3 ° -5 °；
The number of the longitudinal hole is 3-5.
It can be seen from the above technical scheme that junk mill provided by the utility model, in work progress, by the junk mill with boring
Tool connection, rotary tools, when the top surface of milling junk touches blade, first (bottom refers to along main body by bottom
Top to its bottom end direction) blade in mounting base carries out milling to junk, since the milling bottom width of blade is less than
Treat the wall thickness of milling junk, the outer wall that blade will treat milling junk carries out milling, when different milling entirely treat milling junk
Wall thickness so that the particle that milling generates is smaller, and the clast generated is also smaller, returns on clast is easy and bit freezing thing is less likely to occur
Therefore avoid the generation of lock of tool drilling.
Blade in bottom mounting base continues downward milling, due to filling the distance of seat spacing axial line along the bottom end of main body
It is sequentially reduced to the top of main body so that the blade bottom surface in the mounting base adjacent with the mounting base touches the junk outer wall
When, start milling junk, since the milling bottom width of blade is less than the wall thickness for treating milling junk, blade will treat milling junk
Outer wall carry out milling, when different milling entirely treat the wall thickness of milling junk so that milling generate particle it is smaller, generate
Clast is also smaller, returns on clast is easy and lock of tool drilling is less likely to occur, avoid the generation of lock of tool drilling.And so on, directly
Entire junk milling is finished to the blade in different mounting bases.Entire work progress avoids the generation of lock of tool drilling.I.e.
Junk mill disclosed in the utility model reduces the probability that the clast generated during milling causes lock of tool drilling.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the schematic cross-sectional view of junk mill provided by the utility model.
Wherein, in Fig. 1：
Main body 1, blade 2, mounting base 3, transverse holes 4, longitudinal hole 5, guide shoe 6, top connection 7.
Specific embodiment
In order to which those skilled in the art is made to be better understood from the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
Embodiment one
Referring to Fig. 1, the utility model discloses a kind of junk mill, wherein, junk mill includes main body 1 and blade 2, main body 1
Multiple mounting bases 3 are provided on madial wall, wherein, mounting base 3 can be and 1 integrally connected of main body or be welded to connect,
The present embodiment, by taking mounting base 3 is integrated with main body 1 and to connect as an example.
Multiple mounting bases 3 are successively set on along the axial line of main body 1 on the madial wall of main body 1, and mounting base 3 is away from axle center
The distance of line is sequentially reduced along the top of bottom end to the main body 1 of main body 1.
Blade 2 is mounted in mounting base 3, and blade 2 arrives the distance of axial line along the bottom end to the top of main body 1 of main body 1
It being sequentially reduced, and the width of the milling bottom surface of blade 2 is less than the wall thickness for treating milling junk, the number of blade 2 can be 1,
Can be multiple.
Junk mill provided by the utility model in work progress, which is connect with drilling tool, rotary tools, when treating milling
When the top surface of junk touches blade 2, first pacified by bottom (bottom refers to that the direction of its bottom end is arrived on the top along main body 1)
The blade 2 filled on seat 3 carries out milling to junk, since the milling bottom width of blade 2 is less than the wall thickness for treating milling junk, blade
2 will treat milling junk outer wall carry out millings, when different milling entirely treat the wall thickness of milling junk so that milling generate
Grain is smaller, and the clast generated is also smaller, returns on clast is easy and lock of tool drilling is less likely to occur, avoid the hair of lock of tool drilling
It is raw.
Blade 2 in bottom mounting base 3 continues downward milling, since the distance of dress seat spacing axial line is along main body 1
The top of bottom end to main body 1 is sequentially reduced so that 2 bottom surface of blade in the mounting base 3 adjacent with the mounting base 3 touches this and falls
During beyond the region of objective existence wall, start milling junk, since the milling bottom width of blade 2 is less than the wall thickness for treating milling junk, blade 2 will be treated
The outer wall of milling junk carries out milling, when different milling entirely treat the wall thickness of milling junk so that the particle that milling generates is smaller,
The clast that it is generated is also smaller, returns on clast is easy and lock of tool drilling is less likely to occur, avoid the generation of lock of tool drilling.Successively
Analogize, until being finished entire junk milling with the blade 2 in different mounting bases 3.Entire work progress, avoids lock of tool drilling
Generation.That is junk mill disclosed in the utility model reduces the probability that the clast generated during milling causes lock of tool drilling.
Embodiment two
In the utility model provides another embodiment, the structure of the junk mill in the present embodiment and the junk mill in embodiment one
It is similar, something in common is just repeated no more, only introduces difference.
In the present embodiment, it specifically discloses and transverse holes 4 is provided on the side wall of main body 1, transverse holes 4 are blind hole, and blind hole is
It internally gets through from the outside of main body 1, and is formed in its lateral ends welded seal.
Longitudinal hole 5 is provided in mounting base 3, longitudinal hole 5 is vertically arranged with blind hole, and longitudinal hole 5 is connected with blind hole, and
Longitudinal hole 5 is connected with the endoporus that the madial wall of main body 1 forms.I.e. transverse holes 4, longitudinal hole 5 and endoporus constitute circulation well
The channel of liquid.When turn on pump recycles workover fluid, well liquid connects hole longitudinally in each by transverse holes 4 and flows out, for cooling down blade 2 and taking
Band abrasive dust.
Further, the utility model specifically discloses the stepped madial wall for being distributed in main body 1 of multiple mounting bases 3,
And every layer of cascade ring cloth ontology madial wall, the axial line of every layer of ladder are overlapped with the axial line of main body 1.Blade 2 is welded on every layer
The bottom surface of ladder.
Further, the utility model discloses junk mills to further include guide shoe 6, and guide shoe 6 is mounted on the bottom end of main body 1.Draw
The borehole wall is scraped or be inserted into footwear 6 mainly to prevent the bottom end of main body 1 from touching, and Guide grinding-milling shoe is smoothly in well.
For the ease of connecting drilling tool, the utility model discloses junk mills to further include top connection 7, and top connection 7 is arranged on main body 1
Top, for connecting drilling tool.
Further, it is connect the utility model discloses top connection 7 with main body 1 for integral type.Top connection 7 and main body 1 are also
Can be threadedly coupled or be welded and fixed, it should be noted that as long as one can be connected to by meeting top connection 7 and main body 1
It rises and belongs to the scope of protection of the utility model.
For the ease of that will treat that milling junk is introduced in junk mill, the utility model discloses junk mills to further include installation sleeve, peace
Sleeved outer body 1, and installation sleeve can will treat that milling junk is introduced in installation sleeve.It sets and pacifies in the bottom end of main body 1
It is sleeved, it can will treat that milling junk is introduced in installation sleeve, then carries out milling, prevent eccentric wear.
Further, it is threadedly coupled the utility model discloses installation sleeve with main body 1.It should be noted that installation set
Cylinder can also weld together with main body 1.
Further, it is diamond, cubic boron nitride composite piece PCBN or hard the invention also discloses blade 2
The blade 2 of alloy carries out milling convenient for treating milling junk.
In the present embodiment, the number for specifically disclosing mounting base 3 is 2-6, and the width of mounting base 3 is 5mm-10mm, with
Adapt to the junk of different wall thickness, the width of mounting base 3 refers to length of the mounting base 3 along vertical central lines direction, in mounting base 3
Uniformly distributed 6-8 blade 2, the negative rake of blade 2 is 3 ° -5 ° so that blade 2 increases shock resistance.The number of longitudinal hole is 3-5
It is a, increase the flow of cycle well liquid.
Junk mill disclosed in the utility model, has the following advantages：
(1) the stepped madial wall for being distributed in main body 1 of multiple mounting bases 3, and the width of the milling bottom surface of blade 2 is less than
Treat the wall thickness of milling junk so that the particle that milling generates is smaller, and the clast generated is also smaller, returns on clast is easy and does not allow
Lock of tool drilling easily occurs, avoids the generation of lock of tool drilling；
(2) junk mill further includes guide shoe 6, and guide shoe 6 can prevent the bottom end of main body 1 from touching and scrape or be inserted into the borehole wall, and Guide grinding-milling shoe is suitable
Profit is in well；
(3) junk mill further includes installation sleeve, can will treat that milling junk is introduced in installation sleeve, then carries out milling, prevent
Eccentric wear.
It should be noted that the top and bottom end in present specification are named with the direction in Fig. 1.Described " top
End ", " bottom end " are only to illustrate needed for description, have no particular meaning.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide range consistent with novel features.
Claims (10)
1. a kind of junk mill, including main body (1) and blade (2), which is characterized in that be provided on the madial wall of the main body (1) more
A mounting base (3)；
The mounting base (3) sets gradually along the axial line of the main body (1), and the mounting base (3) is away from the axial line
Distance be sequentially reduced along the top of bottom end to the main body (1) of the main body (1)；
The blade (2) in the mounting base (3), and the width of the milling bottom surface of the blade (2) be less than treat milling
The wall thickness of junk.
2. junk mill according to claim 1, which is characterized in that be provided with transverse holes (4), institute on the side wall of the main body (1)
Transverse holes (4) are stated as blind hole；
Longitudinal hole (5) is provided on the mounting base (3), the longitudinal hole (5) is connected, and the longitudinal direction leads to the blind hole
Hole (5) is connected with the endoporus that the madial wall of the main body (1) forms.
3. junk mill according to claim 1, which is characterized in that multiple mounting bases (3) are stepped be distributed in it is described
The madial wall of main body (1).
4. junk mill according to claim 1, which is characterized in that further include guide shoe (6)；
The guide shoe (6) is mounted on the bottom end of the main body (1).
5. junk mill according to claim 1, which is characterized in that further include top connection (7)；
The top connection (7) is arranged on the top of the main body (1), for connecting drilling tool.
6. junk mill according to claim 5, which is characterized in that the top connection (7) connects with the main body (1) for integral type
It connects.
7. junk mill according to claim 1, which is characterized in that further include installation sleeve；
Main body (1) described in the installation sleeve housing, and the installation sleeve can treat that milling junk introduces the peace by described
In sleeved.
8. junk mill according to claim 7, which is characterized in that the installation sleeve is threadedly coupled with the main body (1).
9. according to the junk mill described in any one in claim 1-8, which is characterized in that the blade (2) for diamond, cube
The blade of boron nitride compacts PCBN or hard alloy (2).
10. junk mill according to claim 2, which is characterized in that the number of the mounting base (3) is 2-6, the installation
The width of seat (3) is 5mm-10mm, and the width of the mounting base (3) refers to the mounting base (3) along the vertical axial line
The length in direction；
The uniformly distributed 6-8 blades (2) on the mounting base (3)；
The negative rake of the blade (2) is 3 ° -5 °；
The number of the longitudinal hole is 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457951.7U CN207554002U (en) | 2017-11-03 | 2017-11-03 | A kind of junk mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457951.7U CN207554002U (en) | 2017-11-03 | 2017-11-03 | A kind of junk mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554002U true CN207554002U (en) | 2018-06-29 |
Family
ID=62682200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457951.7U Active CN207554002U (en) | 2017-11-03 | 2017-11-03 | A kind of junk mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142805A (en) * | 2022-06-09 | 2022-10-04 | 淮安市井神钻采机具有限公司 | Composite milling shoe |
-
2017
- 2017-11-03 CN CN201721457951.7U patent/CN207554002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142805A (en) * | 2022-06-09 | 2022-10-04 | 淮安市井神钻采机具有限公司 | Composite milling shoe |
| CN115142805B (en) * | 2022-06-09 | 2024-06-04 | 淮安市井神钻采机具有限公司 | Composite grinding shoes |
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