CN107677561A - A kind of rail milling experimental rig - Google Patents
A kind of rail milling experimental rig Download PDFInfo
- Publication number
- CN107677561A CN107677561A CN201710933764.XA CN201710933764A CN107677561A CN 107677561 A CN107677561 A CN 107677561A CN 201710933764 A CN201710933764 A CN 201710933764A CN 107677561 A CN107677561 A CN 107677561A
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- CN
- China
- Prior art keywords
- milling
- rail
- mill
- experimental rig
- workpiece
- Prior art date
- 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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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/0202—Control of the test
Abstract
The invention discloses a kind of rail milling experimental rig；The mobile platform mechanism moved for carrying rail workpiece to be tested in Y-axis and Z axis to direction is provided with below main backstop；The milling apparatus for carrying out milling repair to rail workpiece surface is provided with above main backstop；Rail workpiece is fixedly mounted in mobile platform mechanism by dynamometer, for gathering cutting force of the rail workpiece during milling repair；Notch is opened up in rail workpiece body side, by the intraoral portion of thermocouple embedded groove, for gathering cutting temperature of the rail workpiece during milling repair.The present apparatus can real simulation go out rail milling turnning and milling mill job parameter while, additionally it is possible to monitor the power and temperature data in milling repair process on-line.The present situation of the online milling experiment condition of rail can not be met by overcoming stock-removing machine.Theoretical foundation is provided for the efficient milling circuit shaping machinery of domestic-developed.
Description
Technical field
The present invention relates to Machine Manufacturing Technology and signal detection technique field, more particularly to a kind of rail milling-mill experiment dress
Put.
Background technology
Rail is the key components in Orbital Transport Systems, it under arms during and train wheel directly contact.
Due to by temperature load and brake force etc. act on, rail under arms during can crack, fatigue damage, crushing of rail head,
Disease, these diseases such as ripple mill, side grinding, fat edges, tread peel off, abrasion not only increase Running Train Noise, can also induce track
Vibration and destruction, and then influence rail system life-span and traffic safety and stability.Therefore rail disease is removed in time to keep away
Exempting from, which influences train operating safety, is necessary.
Rail reparation is divided into polishing and two kinds of techniques of milling, and steel rail grinding is to being wrapped at the top of rail using multiple emery wheels
Network completes the removal of material, but efficiency is low, and pollution is big.Rail milling uses form cutter disk and formed grinding wheel to coordinate to complete
Removal to rail disease, is compared with steel rail grinding, and rail milling reparation has efficiency high, pollutes the characteristics of small.
Rail in milling-mill repair process along with high cutting temperature and cutting force, tool wear speed quickly, not only
Reduce the operating efficiency of rail milling train increases the cost of charp tool simultaneously.If milling-grinding process selection is not proper, rail table can be made
Face produces thermal softening effect, and severest consequences are direct burn material surfaces, and generation is turned blue, and such case once occurs will
Rail reparation is set to lose more than gain.
Rail milling car in formal operation, it is necessary to make rational milling-grinding process parameter selection and cutter life judges,
It is difficult to obtain the cutting temperature and cutting force in milling-mill repair process due to being limited by factors such as spaces, during milling car operation.
The content of the invention
The shortcomings that it is an object of the invention to overcome above-mentioned prior art and deficiency, there is provided a kind of simple in construction, operation is just
Prompt rail milling-mill experimental rig.The experimental rig can real simulation go out milling turnning and milling mill job parameter while, additionally it is possible to
Monitor the power and temperature data in milling repair process on-line.
The present invention is achieved through the following technical solutions：
A kind of rail milling-mill experimental rig, including support frame；
It is provided with what is moved for carrying rail workpiece to be tested in Y-axis and Z axis to direction below main backstop
Mobile platform mechanism；
The milling apparatus for carrying out milling-mill repair to rail workpiece surface is provided with above main backstop；
A secondary support frame is provided with the side of main backstop, secondary support frame is used for the drive mechanism for installing milling apparatus；
The rail workpiece is fixedly mounted in mobile platform mechanism by dynamometer, for gather rail workpiece milling-
Grind the cutting force during repair；Notch is opened up in rail workpiece body side, the intraoral portion of thermocouple embedded groove is used for
Gather cutting temperature of the rail workpiece during milling-mill repair.
The mobile platform mechanism includes line slide rail 17, drive lead screw 16, slide plate 15, rail seat 13, zigzag tread patterns electricity
Machine 12；
The bottom of the slide plate 15 is arranged on line slide rail 17 by sliding block, by vertical drive motor 12 and drive lead screw
Track of the 16 driving slide plates 15 along line slide rail 17 is moved, and then realizes that rail workpiece in Y direction enter in a linear fashion by level
To motion；
The rail seat 13 is supported on the top of slide plate 15, and Worm gear feed screw lowering or hoisting gear 21 is provided with slide plate 15；Should
Worm gear feed screw lowering or hoisting gear 21 drives rail seat 13 to move up and down, so realize rail workpiece Z-direction in a linear fashion on
Lower feeding is moved.
The milling apparatus includes milling attachment 2 and milling apparatus 1；
The milling attachment 2 includes being used for the milling cutter dish axle 27 for installing facing cutter, and in milling cutter dish axle 27
Mill cutter assemblies are formed；One end of milling cutter dish axle 27 is by the output axis connection of shaft coupling and the primary speed-down case of milling attachment, and one
The output axis connection of the input shaft bore and its motor of level reduction box；
The milling apparatus 1 is used for the grinding wheel spindle 35 for installing formed grinding wheel 32 and its component；Grinding wheel spindle 35 passes through shaft coupling
It is connected with its motor.
The main backstop include milling and grinding supporting table 4, be placed on the top of milling and grinding supporting table 4 be used for milling is installed respectively
The milling and grinding supporting plate 3 of turning device 2 and milling apparatus 1；
The bottom of the milling and grinding supporting table 4 is arranged on channel-section steel 6；The mobile platform mechanism is fixed on by bottom plate 5
On channel-section steel 6.
The milling attachment 2 and milling apparatus 1 have been also respectively connected with a frequency converter, and the frequency converter is used to control milling attachment
2 milling cutter dish axle 27 and the rotating speed of the grinding wheel spindle 35 of milling apparatus 1.
The mobile platform mechanism also includes a controller for being used to control the feed speed of vertical drive motor 12.
Rail milling-mill the experimental rig also includes an off-lined signal detection module；The off-lined signal detection module is used for
Detect the detection of the wear condition and rail workpiece machined surface quality of milling cutter and formed grinding wheel.
The thermocouple is connected by signal acquisition module with PC；The dynamometer is adopted by charge amplifier and data
Storage is connected with PC.
The present invention is had the following advantages and effect relative to prior art：
The present invention is simple in construction, space limitation is small, flexibility is big, reliability is high, manufacturing cost is low.Can real simulation go out
While rail milling turnning and milling-mill job parameter, additionally it is possible to monitor the power and temperature data in milling-mill repair process on-line.Gram
The present situation of the online milling of rail-mill experiment condition can not be met by having taken stock-removing machine.For the efficient milling of domestic-developed-mill circuit shaping
Machinery provides theoretical foundation.
The present invention with other equipment by organically combining, additionally it is possible to the wear condition and work of off-line monitoring milling cutter and emery wheel
Part machined surface quality.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the part-structure schematic diagram of Fig. 1 mobile platforms mechanism；
Fig. 3 is the part-structure schematic diagram of Fig. 1 milling attachments；
Fig. 4 is the part-structure schematic diagram of Fig. 1 grinding attachments；
Fig. 5 is the part-structure schematic diagram such as Fig. 1 rail workpiece and thermocouple, dynamometer.
The technical characteristic that numeral mark represents in figure is as follows：
1- grinding attachments
2- milling attachments
3- milling and grinding supporting plates
4- milling and grinding supporting tables
5- bottom plates
6- channel-section steels
7- grinding motors
8- reduction boxes
9- milling motors
10- shaft couplings
11- motor support frames
12- vertical drive motors
13- rail seats
14- carrying bolts
15- slide plates
16- drive lead screws
17- line slide rails
18- rail
19- dynamometers
20- rail cushion blocks
21- Worm gear feed screw lowering or hoisting gears
22- screw mandrel shaft blocks
23- angular contact bearings
24- abnormity handle of a knifes
25- knife grains
26- facing cutter side plates
27- milling cutter dish axles
28- bearing (ball) covers
29- abnormity knife bars
30- bearing spiders
31- clamp nuts
32- formed grinding wheels
33- rubber sheet gaskets
34- chucks
35- grinding wheel spindles
36- copper sheets
37-k type thermocouples
38- trip bolts
39- pads
Embodiment
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
The invention discloses a kind of rail milling-mill experimental rig, including support frame；
It is provided with what is moved for carrying rail workpiece to be tested in Y-axis and Z axis to direction below main backstop
Mobile platform mechanism；
The milling apparatus for carrying out milling-mill repair to rail workpiece surface is provided with above main backstop；
A secondary support frame is provided with the side of main backstop, secondary support frame is used for the drive mechanism for installing milling apparatus；
The rail workpiece is fixedly mounted in mobile platform mechanism by dynamometer, for gather rail workpiece milling-
Grind the cutting force during repair；Notch is opened up in rail workpiece body side, the intraoral portion of thermocouple embedded groove is used for
Gather cutting temperature of the rail workpiece during milling-mill repair.
The mobile platform mechanism includes line slide rail 17, drive lead screw 16, slide plate 15, rail seat 13, zigzag tread patterns electricity
Machine 12；
The bottom of the slide plate 15 is arranged on line slide rail 17 by sliding block, by vertical drive motor 12 and drive lead screw
Track of the 16 driving slide plates 15 along line slide rail 17 is moved, and then realizes that rail workpiece in Y direction enter in a linear fashion by level
To motion；
The rail seat 13 is supported on the top of slide plate 15, and Worm gear feed screw lowering or hoisting gear 21 is provided with slide plate 15；Should
Worm gear feed screw lowering or hoisting gear 21 drives rail seat 13 to move up and down, so realize rail workpiece Z-direction in a linear fashion on
Lower feeding is moved.When Worm gear feed screw lowering or hoisting gear 21 is driven by handwheel to be rotated, can by controlling the anglec of rotation of handwheel, from
And can accurately control the Z-direction of rail workpiece to move, the convenient regulation for carrying out milling cutting depth under various situations.
The milling apparatus includes milling attachment 2 and milling apparatus 1；
The milling attachment 2 includes being used for the milling cutter dish axle 27 for installing facing cutter, and in milling cutter dish axle 27
Mill cutter assemblies are formed；One end of milling cutter dish axle 27 is by the output axis connection of shaft coupling and the primary speed-down case of milling attachment, and one
The output axis connection of the input shaft bore and its motor of level reduction box；
The milling apparatus 1 is used for the grinding wheel spindle 35 for installing formed grinding wheel 32 and its component；Grinding wheel spindle 35 passes through shaft coupling
It is connected with its motor.
In this implementation, it is motionless milling apparatus and simulated by way of rail workpiece motion s rail milling car operation work
Condition, it can at utmost simulate the actual condition of rail milling car.
The main backstop include milling and grinding supporting table 4, be placed on the top of milling and grinding supporting table 4 be used for milling is installed respectively
The milling and grinding supporting plate 3 of turning device 2 and milling apparatus 1；
The bottom of the milling and grinding supporting table 4 is arranged on channel-section steel 6；The mobile platform mechanism is fixed on by bottom plate 5
On channel-section steel 6.
The milling attachment 2 and milling apparatus 1 have been also respectively connected with a frequency converter, and the frequency converter is used to control milling attachment
2 milling cutter dish axle 27 and the rotating speed of the grinding wheel spindle 35 of milling apparatus 1, and then the linear velocity of facing cutter and formed grinding wheel is controlled, side
Just simulate it is various in the case of milling and milling speed.
The mobile platform mechanism also includes a controller for being used to control the feed speed of vertical drive motor 12.
Rail milling-mill the experimental rig also includes an off-lined signal detection module；The off-lined signal detection module is used for
Detect the detection of the wear condition and rail workpiece machined surface quality of milling cutter and formed grinding wheel.
The thermocouple is connected by signal acquisition module with PC；The dynamometer is adopted by charge amplifier and data
Storage is connected with PC.
Using artifical Thermocouple thermometry, thermocouple insertion is offered in the rail workpiece of sulculus and carries out contact survey
Temperature；When milling apparatus is by the segment rail sample, it can monitor on-line and arrive knife-work interface temperature.
Using dynamometer dynamometry, rail workpiece sample is fixed by screws on the dynamometer, dynamometer is fixed on
On rail seat.When milling apparatus is by the segment rail workpiece sample, Milling Force and grinding force number can be monitored on-line respectively
According to.
As described above, the present invention can be better realized.
Embodiments of the present invention are simultaneously not restricted to the described embodiments, other any Spirit Essences without departing from the present invention
With made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in the present invention's
Within protection domain.
Claims (8)
- A kind of 1. rail milling-mill experimental rig, it is characterised in that：Including support frame；The movement moved for carrying rail workpiece to be tested in Y-axis and Z axis to direction is provided with below main backstop Platform mechanism；The milling apparatus for carrying out milling-mill repair to rail workpiece surface is provided with above main backstop；A secondary support frame is provided with the side of main backstop, secondary support frame is used for the drive mechanism for installing milling apparatus；The rail workpiece is fixedly mounted in mobile platform mechanism by dynamometer, is repaiied for gathering rail workpiece in milling-mill Cutting force in multiple operation process；Notch is opened up in rail workpiece body side, by the intraoral portion of thermocouple embedded groove, for gathering Cutting temperature of the rail workpiece during milling-mill repair.
- 2. rail milling-mill experimental rig according to claim 1, it is characterised in that：The mobile platform mechanism includes straight line Slide rail (17), drive lead screw (16), slide plate (15), rail seat (13), vertical drive motor (12)；The bottom of the slide plate (15) is arranged on line slide rail (17) by sliding block, by vertical drive motor (12) and driving wire Track motion of bar (16) the driving slide plate (15) along line slide rail (17), and then realize rail workpiece in Y direction with straight line side Formula horizontal feed moves；The rail seat (13) is supported on the top of slide plate (15), and Worm gear feed screw lowering or hoisting gear is provided with slide plate (15) (21)；The Worm gear feed screw lowering or hoisting gear (21) driving rail seat (13) move up and down, and then realize rail workpiece Z-direction with Linear fashion bottom and top feed moves.
- 3. rail milling-mill experimental rig according to claim 2, it is characterised in that：The milling apparatus includes milling attachment And milling apparatus (1) (2)；The milling attachment (2) includes being used for the milling cutter dish axle (27) for installing facing cutter, and in milling cutter dish axle (27) Mill cutter assemblies form；One end of milling cutter dish axle (27) is connected by the output shaft of shaft coupling and the primary speed-down case of milling attachment Connect, the input shaft bore of primary speed-down case and the output axis connection of its motor；The milling apparatus (1) is used for the grinding wheel spindle (35) for installing formed grinding wheel (32) and its component；Grinding wheel spindle (35) passes through connection Axle device is connected with its motor.
- 4. rail milling-mill experimental rig according to claim 3, it is characterised in that：The main backstop includes milling and grinding branch Support platform (4), the milling for being used to install milling attachment (2) and milling apparatus (1) respectively being placed at the top of milling and grinding supporting table (4) Cut supporting plate (3)；The bottom of the milling and grinding supporting table (4) is arranged on channel-section steel (6)；The mobile platform mechanism is fixed on by bottom plate 5 On channel-section steel (6).
- 5. rail milling-mill experimental rig according to claim 4, it is characterised in that：The milling attachment (2) and milling apparatus (1) frequency converter has been also respectively connected with, the frequency converter is used for the milling cutter dish axle (27) and milling apparatus for controlling milling attachment (2) (1) rotating speed of grinding wheel spindle (35).
- 6. rail milling-mill experimental rig according to claim 4, it is characterised in that：The mobile platform mechanism also includes one For controlling the controller of vertical drive motor (12) feed speed.
- 7. rail milling-mill experimental rig according to claim 4, it is characterised in that：Rail milling-mill the experimental rig also wraps Include an off-lined signal detection module；The off-lined signal detection module is used for the wear condition and steel for detecting milling cutter and formed grinding wheel The detection of rail workpiece machined surface quality.
- 8. rail milling-mill experimental rig according to claim 4, it is characterised in that：The thermocouple passes through signal acquisition mould Block is connected with PC；The dynamometer is connected by charge amplifier and data acquisition unit with PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933764.XA CN107677561A (en) | 2017-10-10 | 2017-10-10 | A kind of rail milling experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933764.XA CN107677561A (en) | 2017-10-10 | 2017-10-10 | A kind of rail milling experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677561A true CN107677561A (en) | 2018-02-09 |
Family
ID=61138011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710933764.XA Pending CN107677561A (en) | 2017-10-10 | 2017-10-10 | A kind of rail milling experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677561A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871836A (en) * | 2018-09-14 | 2018-11-23 | 西南交通大学 | A kind of multi-functional steel rail grinding experimental rig |
| CN114226821A (en) * | 2021-12-31 | 2022-03-25 | 深圳市仕兴鸿精密机械设备有限公司 | Disc milling cutter, device and method for intelligent rail machining |
| CN116047020A (en) * | 2023-04-03 | 2023-05-02 | 杭州电子科技大学 | Online repair performance testing device and testing method for steel rail surface damage |
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2017
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| CN201931312U (en) * | 2010-12-03 | 2011-08-17 | 广东科杰机械自动化有限公司 | Integrated vertical and horizontal numerical control milling and grinding machine |
| CN103692005A (en) * | 2013-12-27 | 2014-04-02 | 江苏真绩机械制造有限公司 | Special machine tool for multi-surface mill |
| CN204302025U (en) * | 2014-12-30 | 2015-04-29 | 北京二七轨道交通装备有限责任公司 | Milling apparatus pilot system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871836A (en) * | 2018-09-14 | 2018-11-23 | 西南交通大学 | A kind of multi-functional steel rail grinding experimental rig |
| CN114226821A (en) * | 2021-12-31 | 2022-03-25 | 深圳市仕兴鸿精密机械设备有限公司 | Disc milling cutter, device and method for intelligent rail machining |
| CN114226821B (en) * | 2021-12-31 | 2022-12-13 | 深圳市仕兴鸿精密机械设备有限公司 | Disc milling cutter, device and method for intelligent rail machining |
| CN116047020A (en) * | 2023-04-03 | 2023-05-02 | 杭州电子科技大学 | Online repair performance testing device and testing method for steel rail surface damage |
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