CN207280892U - A kind of rail milling-mill experimental rig - Google Patents

A kind of rail milling-mill experimental rig Download PDF

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Publication number
CN207280892U
CN207280892U CN201721297106.8U CN201721297106U CN207280892U CN 207280892 U CN207280892 U CN 207280892U CN 201721297106 U CN201721297106 U CN 201721297106U CN 207280892 U CN207280892 U CN 207280892U
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CN
China
Prior art keywords
milling
rail
mill
experimental rig
workpiece
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Expired - Fee Related
Application number
CN201721297106.8U
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Chinese (zh)
Inventor
全燕鸣
丁郭
刘佩杰
余浪
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN201721297106.8U priority Critical patent/CN207280892U/en
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Publication of CN207280892U publication Critical patent/CN207280892U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model 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, thermocouple is embedded in inside notch, 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

A kind of rail milling-mill experimental rig
Technical field
It the utility model is related to Machine Manufacturing Technology and signal detection technique field, more particularly to a kind of rail milling-mill examination Experiment device.
Background technology
Rail is the key components in Orbital Transport Systems, it is directly contacted during military service with train wheel. Due to be subject to temperature load and brake force etc. act on, rail can crack during military service, 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 service life 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 two kinds of techniques of polishing and 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, rail milling reparation have it is efficient, pollute the characteristics of small.
Rail in milling-mill repair process with high cutting temperature and cutting force, tool wear speed quickly, not only Reduce the work efficiency of rail milling train increases the cost of charp tool at the same time.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, Due to being limited be subject to factors such as spaces, when milling car operation is difficult the cutting temperature and cutting force obtained in milling-mill repair process.
The content of the invention
The purpose of the utility model is to overcome the shortcomings that the above-mentioned prior art and deficiency, there is provided a kind of simple in structure, behaviour Make easily rail milling-mill experimental rig.The experimental rig can real simulation go out milling turnning and milling mill job parameter while, also The power and temperature data in milling repair process can be monitored on-line.
The utility model is achieved through the following technical solutions:
A kind of rail milling-mill experimental rig, including supporting rack;
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 supporting rack is provided with the side of main backstop, secondary supporting rack is used for the driving 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, thermocouple is embedded in inside notch, 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 installed on line slide rail 17 by sliding block, by vertical drive motor 12 and drive lead screw 16 driving slide plates 15 are moved along the track of line slide rail 17, so realize rail workpiece Y direction in a linear fashion it is horizontal into To movement;
The rail seat 13 is supported on the top of slide plate 15, and Worm gear feed screw lifting gear 21 is provided with slide plate 15;Should Worm gear feed screw lifting 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 input shaft bore of level reduction box drives the output axis connection of motor with it;
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 Motor is driven to be connected with it.
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 support plate 3 of turning device 2 and milling apparatus 1;
The lower part of the milling and grinding supporting table 4 is installed on channel steel 6;The mobile platform mechanism is fixed on by bottom plate 5 On channel steel 6.
A frequency converter is also respectively connected in the milling attachment 2 and milling apparatus 1, which is used to control milling attachment The rotating speed of 21 grinding wheel spindle 35 of milling cutter dish axle 27 and milling apparatus.
The mobile platform mechanism further includes a controller for being used to control 12 feed speed of vertical drive motor.
Rail milling-mill the experimental rig further 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 machine;The dynamometer is adopted by charge amplifier and data Storage is connected with PC machine.
The utility model is had the following advantages and effect relative to the prior art:
The utility model is simple in structure, space limitation is small, flexibility is big, reliability is high, manufacture cost is low.Being capable of true mould While drawing up rail milling turnning and milling-mill job parameter, additionally it is possible to monitor the power and temperature number in milling-mill repair process on-line According to.The present situation of the online milling of rail-mill experiment condition can not be met by overcoming stock-removing machine.For the efficient milling of domestic-developed-mill line Road shaping machinery provides theoretical foundation.
The utility model with other equipment by organically combining, additionally it is possible to the wear condition of off-line monitoring milling cutter and emery wheel with And workpiece machined surface quality.
Brief description of the drawings
Fig. 1 is the utility model structure diagram;
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 support plates
4- milling and grinding supporting tables
5- bottom plates
6- channel 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 lifting 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- gaskets
Embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment
The utility model discloses a kind of rail milling-mill experimental rig, including supporting rack;
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 supporting rack is provided with the side of main backstop, secondary supporting rack is used for the driving 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, thermocouple is embedded in inside notch, 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 installed on line slide rail 17 by sliding block, by vertical drive motor 12 and drive lead screw 16 driving slide plates 15 are moved along the track of line slide rail 17, so realize rail workpiece Y direction in a linear fashion it is horizontal into To movement;
The rail seat 13 is supported on the top of slide plate 15, and Worm gear feed screw lifting gear 21 is provided with slide plate 15;Should Worm gear feed screw lifting 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 lifting gear 21 is driven by handwheel to be rotated, can by controlling the rotation angle of handwheel, from And can accurately control the Z-direction of rail workpiece to move, the convenient adjusting 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 input shaft bore of level reduction box drives the output axis connection of motor with it;
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 Motor is driven to be connected with it.
In this implementation, it is motionless milling apparatus and simulated by way of rail workpiece motion s rail milling car operation work Condition, 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 support plate 3 of turning device 2 and milling apparatus 1;
The lower part of the milling and grinding supporting table 4 is installed on channel steel 6;The mobile platform mechanism is fixed on by bottom plate 5 On channel steel 6.
A frequency converter is also respectively connected in the milling attachment 2 and milling apparatus 1, which is used to control milling attachment The rotating speed of 21 grinding wheel spindle 35 of milling cutter dish axle 27 and milling apparatus, 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 further includes a controller for being used to control 12 feed speed of vertical drive motor.
Rail milling-mill the experimental rig further 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 machine;The dynamometer is adopted by charge amplifier and data Storage is connected with PC machine.
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, it can preferably realize the utility model.
The embodiment of the utility model is simultaneously not restricted to the described embodiments, other are any without departing from the utility model Spirit Essence with made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in Within the scope of protection of the utility model.

Claims (8)

  1. A kind of 1. rail milling-mill experimental rig, it is characterised in that:Including supporting rack;
    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 supporting rack is provided with the side of main backstop, secondary supporting rack is used for the driving 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, thermocouple is embedded in inside notch, for gathering Cutting temperature of the rail workpiece during milling-mill repair.
  2. 2. rail milling-mill experimental rig according to claim 1, it is characterised in that:The mobile platform mechanism includes straight line Slide (17), drive lead screw (16), slide plate (15), rail seat (13), vertical drive motor (12);
    The bottom of the slide plate (15) is installed on line slide rail (17) by sliding block, by vertical drive motor (12) and driving wire Bar (16) driving slide plate (15) is moved along the track of line slide rail (17), and then realizes 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 lifting gear is provided with slide plate (15) (21);The Worm gear feed screw lifting 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. 3. rail milling-mill experimental rig according to claim 2, it is characterised in that: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 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 drives the output axis connection of motor with it;
    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 Axis device drives motor to be connected with it.
  4. 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 support plate (3);
    The lower part of the milling and grinding supporting table (4) is installed on channel steel (6);The mobile platform mechanism is fixed on by bottom plate 5 On channel steel (6).
  5. 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 is also respectively connected, which 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. 6. rail milling-mill experimental rig according to claim 4, it is characterised in that:The mobile platform mechanism further includes one For controlling the controller of vertical drive motor (12) feed speed.
  7. 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. 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 machine;The dynamometer is connected by charge amplifier and data collector with PC machine.
CN201721297106.8U 2017-10-10 2017-10-10 A kind of rail milling-mill experimental rig Expired - Fee Related CN207280892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721297106.8U CN207280892U (en) 2017-10-10 2017-10-10 A kind of rail milling-mill experimental rig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721297106.8U CN207280892U (en) 2017-10-10 2017-10-10 A kind of rail milling-mill experimental rig

Publications (1)

Publication Number Publication Date
CN207280892U true CN207280892U (en) 2018-04-27

Family

ID=61988894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721297106.8U Expired - Fee Related CN207280892U (en) 2017-10-10 2017-10-10 A kind of rail milling-mill experimental rig

Country Status (1)

Country Link
CN (1) CN207280892U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107677561A (en) * 2017-10-10 2018-02-09 华南理工大学 A kind of rail milling experimental rig
CN115855707A (en) * 2023-03-03 2023-03-28 杭州电子科技大学 Steel rail wheel-rail contact fatigue damage simulation test device and method under static and dynamic loads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107677561A (en) * 2017-10-10 2018-02-09 华南理工大学 A kind of rail milling experimental rig
CN115855707A (en) * 2023-03-03 2023-03-28 杭州电子科技大学 Steel rail wheel-rail contact fatigue damage simulation test device and method under static and dynamic loads

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180427

Termination date: 20211010