CN110258214A - A kind of cutterhead of high-efficient milling rail - Google Patents
A kind of cutterhead of high-efficient milling rail Download PDFInfo
- Publication number
- CN110258214A CN110258214A CN201910646837.6A CN201910646837A CN110258214A CN 110258214 A CN110258214 A CN 110258214A CN 201910646837 A CN201910646837 A CN 201910646837A CN 110258214 A CN110258214 A CN 110258214A
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- China
- Prior art keywords
- cutterhead
- milling
- rail
- knife
- tool
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000003801 milling Methods 0.000 title claims abstract description 59
- 239000002245 particle Substances 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 201000010099 disease Diseases 0.000 abstract description 13
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 13
- 230000008439 repair process Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a kind of cutterhead of high-efficient milling rail, including cutterhead cartridge, it is arranged with tool-post structure outside the cutterhead cartridge, several pieces of cutterhead knife grains are provided on the tool-post structure.The present invention provides a kind of cutterheads of high-efficient milling rail, it can be improved rail milling efficiency, meet rail on line and repairs demand, according to rail Common Diseases and related literatures on line, also can be different therewith to eliminate different degrees of disease milling depth, the rail disease of the overwhelming majority can be eliminated when milling depth is in 0.1-0.5mm.
Description
Technical field
The present invention relates to railway maintenance technical field more particularly to a kind of cutterheads of high-efficient milling rail.
Background technique
Rail is the main building block of railroad track.Its function is that the wheel of pilot engine vehicle advances, and bears
The immense pressure of wheel, and be transmitted on sleeper.Rail is necessary for wheel and provides continuous, the smooth and the smallest rolling table of resistance
Face.In electric railway or automatic block district, rail can also also serve as track circuit and be used.
As the development of the technology of track traffic high speed such as China railways, subway, the increase of rolling stock axis weight, speed mention
Height proposes requirements at the higher level to the satisfy the need quality of route of iron, and the regulation of Rail Surface disease is extremely urgent.
Railway, rail of subway service life are controlled by the fatigue crack for being in rolling contact generation and abrasion.Fatigue crack influences
Rail examination, wheel track operating status increase maintenance cost, shorten rail service life, or even causing broken rail；Abrasion, especially on
Stock side grinding causes rail to descend road too early on curve.To delay the development of rail rolling contact fatigue hurt and abrasion, extending rail
Service life, it is necessary to be supported using the rail of modernization and repair technology to realize.To solve above-mentioned rail disease, such as beaten using traditional
Mill mode needs to polish 25 times under the rail conditions of serious wear, and uses milling mode, then can be completed for one time.Mesh
Before, China introduces rail Milling techniques in high-speed rail and subway field since 2009, to solve rail rolling contact fatigue and mill
Hurt etc. is consumed, and is increasingly becoming main reparation means.
At present due to the limitation of rail milling turning cutter disc, the efficiency of milling operation is largely affected.It is general normal
For the rail milling vehicle operating speed seen in 0.3-2Km/h, operating speed is highest possible to reach 5Km/h (milling operation effect at this time
Fruit and precision can reduce accordingly).Single operation cutting-in is in 0.1-3mm or so.
Recognize at present only have or so 4 hours, usual situation in the skylight phase longest of the routes such as the railway of operation, subway
The time of rail reparation is left at 2-3 hours, even less than 1 hour in short-term.The mileage of rail milling vehicle single operation is most in this way
Mostly in 5-6Km, the operation mileage of usual situation is in 2-3Km.Its operating efficiency is much unable to satisfy the reparation demand of rail on line.
Summary of the invention
It is an object of the invention to propose a kind of cutterhead of high-efficient milling rail, rail milling efficiency can be improved, meet
Rail repairs demand on line.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals: a kind of high-efficient milling rail
Cutterhead, including cutterhead cartridge is arranged with tool-post structure outside the cutterhead cartridge, several pieces of cutterhead knives is provided on the tool-post structure
Grain.
Several mounting grooves are provided on the periphery of the cutterhead cartridge, it is corresponding convex that the tool-post structure is provided with quantity
Block, the convex block are inserted into the mounting groove and install the tool-post structure to the cutterhead cartridge to realize.
It is provided with several helicla flutes on the tool-post structure, the cutterhead knife grain is provided in the helicla flute.
The knife particle size of the cutterhead knife grain is between grinding wheel sand grains and cutting plate for milling cutters.
The mounting groove is trapezoidal groove, and the convex block is trapezoidal positioning spline, and the convex block is inserted into the mounting groove
For realizing the transmitting of guide-localization and torque.
The knife particle size of the cutterhead knife grain is 5mm.
The milling amount of the cutterhead knife grain is between polishing and milling.
The milling amount of the cutterhead knife grain is 0.1-0.5mm.
The groove width of the helicla flute is according to knife grain size, the knife particle size size that design value is twice.
The shape of the helicla flute is determined by spiral shell lift angle α and radius of spin r；The radius of spin is determined by cutter diameter D
It is fixed, i.e. r=D；The spiral shell lift angle α unrestricted choice can be adjusted according to the actual situation.
The present invention provides the cutterheads for having invented a kind of high-efficient milling rail, can be improved rail milling efficiency, meet line
Upper rail repairs demand, according to rail Common Diseases and related literatures on line, to eliminate different degrees of disease milling depth
Degree also can be different therewith, and the rail disease of the overwhelming majority can be eliminated when milling depth is in 0.1-0.5mm.
The cutterhead that this programme provides allows milling depth in 0.1-0.5mm, the fastest reachable 10-15Km/ of milling operation
H substantially increases the operating speed of rail milling vehicle, while realizing the effect for eliminating disease again.
Detailed description of the invention
The specific embodiment part provided and referring to the drawings, the features and advantages of the present invention will become more
It is readily appreciated that, in the accompanying drawings:
Fig. 1 is schematic diagram of the invention.
Fig. 2 is schematic enlarged-scale view at A in Fig. 1.
Specific embodiment
Exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings.Illustrative embodiments are retouched
It states merely for the sake of demonstration purpose, and is definitely not to the present invention and its application or the limitation of usage.
Although referring to illustrative embodiments, invention has been described, but it is to be understood that the present invention does not limit to
The specific embodiment that Yu Wenzhong is described in detail and shows, without departing from claims limited range, this
Field technical staff can make various changes to the illustrative embodiments.
With reference to the accompanying drawing 1 to the present invention will be described in detail the embodiment of attached drawing 2 technical solution.A kind of high-efficient milling rail
Cutterhead, including cutterhead cartridge 1, the cutterhead cartridge 1 are arranged with tool-post structure 2 outside, several pieces of cutterheads are provided on the tool-post structure 2
Knife grain 3.
Several mounting grooves are provided on the periphery of the cutterhead cartridge 1, it is corresponding that the tool-post structure 2 is provided with quantity
Convex block, the convex block are inserted into the mounting groove to realize and install the tool-post structure 2 to the cutterhead cartridge 1.
It is provided with several helicla flutes on the tool-post structure 2, the cutterhead knife grain 3 is provided in the helicla flute.
The knife particle size of the cutterhead knife grain 3 is between grinding wheel sand grains and cutting plate for milling cutters.
The mounting groove is trapezoidal groove, and the convex block is trapezoidal positioning spline, and the convex block is inserted into the mounting groove
For realizing the transmitting of guide-localization and torque.
The knife particle size of the cutterhead knife grain 3 is 5mm.
The milling amount of the cutterhead knife grain 3 is between polishing and milling.
The milling amount of the cutterhead knife grain 3 is 0.1-0.5mm.
The groove width of the helicla flute is according to knife grain size, the knife particle size size that design value is twice.
The shape of the helicla flute is determined by spiral shell lift angle α and radius of spin r；The radius of spin is determined by cutter diameter D
It is fixed, i.e. r=D；The spiral shell lift angle α unrestricted choice can be adjusted according to the actual situation.
The detailed description of the helicla flute of cutterhead tool-post structure is specific as follows:
First, the groove width of helicla flute is according to knife grain size, the knife particle size that design value is twice, i.e. 10mm.
Second, the shape of helicla flute is determined by two parts, first is that spiral shell lift angle α, the other is radius of spin r, the radius of spin
It is determined by cutter diameter D, r=D；Spiral shell lift angle α then has with design requirement compared with Important Relations.Same diameter cutterhead, the present invention have
The characteristics of more numbers of teeth.
To guarantee milling effect, the linear velocity of usual cutterhead is in 200-350m/min, and cutterhead linear velocity of the invention is most
High reachable 500m/min or more.
Vehicle velocity V (process velocity) calculation formula of the present apparatus is as follows
VC=pDn
Wherein:
N: cutterhead revolving speed (r/min)；
VC: cutterhead linear velocity (m/min)；
D: cutter diameter (m)；
Z: the cutterhead number of teeth；
DZ: feed engagement (mm/ tooth).
By formula it is found that under identical cutter diameter, the speed that the present invention allows i.e. process velocity is that usual milling vehicle adds
2-3 times of work speed greatly improves the operating efficiency of milling vehicle.
The present invention has the characteristics that the following:
First, cutterhead used in milling vehicle at present, actually one kind of milling cutter, the blade of knife grain and milling cutter is without obvious poor
It is different, the characteristics of milling amount is big (0.1-3mm) so having, milling linear velocity low (limiting milling vehicle operating speed).And this hair
Bright knife grain size is between grinding wheel sand grains and cutting plate for milling cutters, so its milling amount (0.1-0.5mm) is between polishing and milling
Between, and its operating speed also has promotion at double compared to conventional Milling Speed.
Second, the helicla flute that its outer ring of the cutterhead tool-post structure of this programme is opened can fill more knife grains, can extend knife grain
Service life can improve homework precision again.The cutting force that helicla flute can also share milling generation in operation process is further protected
The service life of knife grain is demonstrate,proved.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
The present invention provides the cutterheads for having invented a kind of high-efficient milling rail, can be improved rail milling efficiency, meet line
Upper rail repairs demand, according to rail Common Diseases and related literatures on line, to eliminate different degrees of disease milling depth
Degree also can be different therewith, and the rail disease of the overwhelming majority can be eliminated when milling depth is in 0.1-0.5mm.
The cutterhead that this programme provides allows milling depth in 0.1-0.5mm, the fastest reachable 10-15Km/ of milling operation
H substantially increases the operating speed of rail milling vehicle, while realizing the effect for eliminating disease again.
Claims (10)
1. a kind of cutterhead of high-efficient milling rail, it is characterised in that: including cutterhead cartridge (1), be arranged outside the cutterhead cartridge (1)
Have tool-post structure (2), several pieces of cutterhead knife grains (3) are provided on the tool-post structure (2).
2. cutterhead as described in claim 1, it is characterised in that: be provided with several on the periphery of the cutterhead cartridge (1)
Mounting groove, the tool-post structure (2) are provided with the corresponding convex block of quantity, and the convex block is inserted into the mounting groove to realize institute
It states in tool-post structure (2) installation to the cutterhead cartridge (1).
3. cutterhead as described in claim 1, it is characterised in that: several helicla flutes are provided on the tool-post structure (2), it is described
The cutterhead knife grain (3) is provided in helicla flute.
4. cutterhead as described in claim 1, it is characterised in that: the knife particle size of the cutterhead knife grain (3) is between grinding wheel sand grains
Between cutting plate for milling cutters.
5. cutterhead as claimed in claim 2, it is characterised in that: the mounting groove is trapezoidal groove, and the convex block is trapezoidal fixed
Position spline, the convex block are inserted into the transmitting in the mounting groove for realizing guide-localization and torque.
6. cutterhead as claimed in claim 4, it is characterised in that: the knife particle size of the cutterhead knife grain (3) is 5mm.
7. cutterhead as claimed in claim 4, it is characterised in that: the milling amount of the cutterhead knife grain (3) is between polishing and milling
Between.
8. cutterhead as claimed in claim 7, it is characterised in that: the milling amount of the cutterhead knife grain (3) is 0.1-0.5mm.
9. cutterhead as claimed in claim 3, it is characterised in that: the groove width of the helicla flute is according to knife grain size, design value
Twice of knife particle size size.
10. cutterhead as claimed in claim 3, it is characterised in that: the shape of the helicla flute is by spiral shell lift angle α and radius of spin r
It determines；The radius of spin determined by cutter diameter D, i.e. r=D；The spiral shell lift angle α can unrestricted choice tune according to the actual situation
Section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646837.6A CN110258214A (en) | 2019-07-17 | 2019-07-17 | A kind of cutterhead of high-efficient milling rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646837.6A CN110258214A (en) | 2019-07-17 | 2019-07-17 | A kind of cutterhead of high-efficient milling rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110258214A true CN110258214A (en) | 2019-09-20 |
Family
ID=67926791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910646837.6A Pending CN110258214A (en) | 2019-07-17 | 2019-07-17 | A kind of cutterhead of high-efficient milling rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110258214A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030223828A1 (en) * | 2002-05-31 | 2003-12-04 | Craig Karen A. | True helical cutter system |
| CN103097063A (en) * | 2010-01-21 | 2013-05-08 | 赫尔穆特·林格尔 | Device for reworking the running surface of a rail head by machining |
| CN204025981U (en) * | 2014-09-26 | 2014-12-17 | 浙江昌利锻造有限公司 | Flange plate |
| CN205218163U (en) * | 2015-12-16 | 2016-05-11 | 台州中天工具有限公司 | Trilateral sword milling cutter of empiecement formula |
| CN206009964U (en) * | 2016-09-22 | 2017-03-15 | 北京润丰泰机械设备有限公司 | A kind of milling cutter |
| CN107386022A (en) * | 2017-01-11 | 2017-11-24 | 中国铁建高新装备股份有限公司 | A kind of online milling car of portable rail of subway |
| CN108480732A (en) * | 2018-02-23 | 2018-09-04 | 中国神华能源股份有限公司 | Change the method for the contour shape in the cross section of milling cutter and its cutterhead and rail |
| CN211079787U (en) * | 2019-07-17 | 2020-07-24 | 北京拓博尔轨道维护技术有限公司 | Cutter head for efficiently milling steel rail |
-
2019
- 2019-07-17 CN CN201910646837.6A patent/CN110258214A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030223828A1 (en) * | 2002-05-31 | 2003-12-04 | Craig Karen A. | True helical cutter system |
| CN103097063A (en) * | 2010-01-21 | 2013-05-08 | 赫尔穆特·林格尔 | Device for reworking the running surface of a rail head by machining |
| CN204025981U (en) * | 2014-09-26 | 2014-12-17 | 浙江昌利锻造有限公司 | Flange plate |
| CN205218163U (en) * | 2015-12-16 | 2016-05-11 | 台州中天工具有限公司 | Trilateral sword milling cutter of empiecement formula |
| CN206009964U (en) * | 2016-09-22 | 2017-03-15 | 北京润丰泰机械设备有限公司 | A kind of milling cutter |
| CN107386022A (en) * | 2017-01-11 | 2017-11-24 | 中国铁建高新装备股份有限公司 | A kind of online milling car of portable rail of subway |
| CN108480732A (en) * | 2018-02-23 | 2018-09-04 | 中国神华能源股份有限公司 | Change the method for the contour shape in the cross section of milling cutter and its cutterhead and rail |
| CN211079787U (en) * | 2019-07-17 | 2020-07-24 | 北京拓博尔轨道维护技术有限公司 | Cutter head for efficiently milling steel rail |
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