CN109332815A - A kind of gradual change rail processing unit (plant) - Google Patents
A kind of gradual change rail processing unit (plant) Download PDFInfo
- Publication number
- CN109332815A CN109332815A CN201811507118.8A CN201811507118A CN109332815A CN 109332815 A CN109332815 A CN 109332815A CN 201811507118 A CN201811507118 A CN 201811507118A CN 109332815 A CN109332815 A CN 109332815A
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- rail
- slideway
- plant
- processing unit
- gradual change
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Links
- 230000008859 change Effects 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000465 moulding Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000001815 facial effect Effects 0.000 abstract description 8
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
A kind of gradual change rail processing unit (plant), including pedestal, multiple support bases positioned at pedestal two sides, the molding cutterhead that rail is processed, the spindle drive of driving molding cutterhead rotation, the vertical feed mechanism that driving molding cutterhead and spindle drive are gone up and down along the vertical direction, the drive wheel mechanism that driving rail moves in the horizontal direction, process time limit rail is only capable of the clamping mechanism moved in the horizontal direction, the pedestal is equipped with slideway I, portal frame positioned at I side of slideway, each support base is equipped with slideway II, slideway I and multiple slideways II are located on same level straight line；Spindle drive is slidably installed in the inside of portal frame, and vertical feed mechanism, clamping mechanism are respectively installed on pedestal.The gradual change rail processing unit (plant) can be high-efficient to rail clamped one time machine-shaping.The work facial contour and the external envelope facial contour of rail surface of molding cutter mutually agree with, and machining accuracy is higher.
Description
Technical field
The invention belongs to rail processing technique fields, and in particular to a kind of gradual change rail processing unit (plant).
Background technique
Rail can generate abrasion in long-time use process, safety traffic to vehicle and comfort level can generate by bus
It influences, in this case with regard to needing to replace the rail of loss, position meeting of the new rail after replacement in conjunction with raw steel rail
There is difference in height, thus just need to carry out preprocessing to new rail before rail replacement, new, relayable rail junction is made to smoothly transit.
The existing way of rail preprocessing is that artificial hand-held grinder carries out reciprocal polishing until outer dimension is close, the defect of which
It is that precision is poor, profile is difficult to meet the requirements and faying face transition is rough.
Summary of the invention
For defect existing for existing manual polishing, it is an object of the invention to propose a kind of novel gradual change rail processing dress
It sets, in the case where meeting machining accuracy and requiring, clamped one time machine-shaping saves the working time, and increases substantially
Working efficiency.
The purpose of the present invention is realized using following technical scheme.A kind of gradual change rail processing dress proposed according to the present invention
It sets, including pedestal 1, positioned at multiple support bases 2 of pedestal two sides, the molding cutterhead 4 processed to rail 3, driving forming cutter
The vertical feed machine that spindle drive, driving molding cutterhead 4 and the spindle drive of the rotation of disk 4 are gone up and down along the vertical direction
Drive wheel mechanism, the process time limit rail 3 that structure, driving rail 3 move in the horizontal direction are only capable of the dress moved in the horizontal direction
Clamp mechanism, the pedestal 1 are equipped with slideway I 501, the portal frame 6 positioned at I side of slideway, and each support base 2 is equipped with slideway II
502, slideway I and multiple slideways II are located on same level straight line；Spindle drive is slidably installed in the inside of portal frame 6,
Vertical feed mechanism, clamping mechanism are respectively installed on pedestal 1.
Further, spindle drive includes servo motor I, spindle box, and servo motor I is used for input power, defeated
Shaft is connected by belt and belt wheel with the main shaft of spindle box, the output end installing molding cutterhead 4 of main shaft.
Further, portal frame 6 includes two columns 601, and straight line is arranged in the side of each relatively another column of column 601
Sliding rail I, the front setting line slide rail II 602 of the opposite slideway I of each column 601.
Further, the spindle box side opposite with column is equipped with slider I, and the spindle box side opposite with column front is set
There is sliding block II 7, the slider I is installed on the line slide rail I of column side, the sliding block II is installed in the positive straight line of column
On sliding rail II 602.
Further, vertical feed mechanism includes servo motor II, speed reducer, lead screw, and servo motor II is packed in pedestal 1
Or connect on portal frame 6 and with speed reducer, the output shaft of speed reducer is connect with lead screw；The sliding nut and main shaft installed on lead screw
Case is affixed.
Further, drive wheel mechanism includes motor III, belt wheel, and belt wheel is installed on the output shaft of motor III and and rail
3 side contact, applies driving force to rail.
Further, clamping mechanism includes laterally pushing up to take turns 8, vertical hold-down mechanism 9, transversal pressing mechanism 10, laterally top wheel 8
It is installed in the bottom of portal frame 6 and abuts the side of rail 3；Vertical hold-down mechanism is crossed on slideway I 501, output end
The top surface of pinch roller compression rail 3；Transversal pressing mechanism 10 is installed in the other side on pedestal 1 and being located at slideway I 501, output
The friction pulley 1001 at end pushes against the another side of rail 3.
Further, there are two laterally top wheel 8 is set, it is respectively installed in the bottom of two columns 601；Vertical hold-down mechanism 9
There are two if, it is located at the two sides of molding cutterhead 4；Transversal pressing mechanism 10 is located at two and laterally pushes up between wheel 8.
Further, vertical hold-down mechanism 9 includes U-shaped seat 901, the hydraulic cylinder I 902 being installed at the top of U-shaped seat, is located at U
Pinch roller in type seat, U-shaped seat 901 are crossed on slideway I 501, and pinch roller is installed in the piston rod end of hydraulic cylinder I 902, hydraulic
The movement lower pressure wheel of cylinder I moves down and compresses the top surface of rail 3.
Further, transversal pressing mechanism 10 includes friction pulley 1001, hydraulic cylinder II, bottom plate 1002, and slideway I 501 is another
The pedestal 1 of side is equipped with line slide rail III 1004, and the bottom of bottom plate 1002 is equipped with sliding block III 1003, and sliding block III 1003 is installed in directly
Line sliding rail III 1004；Hydraulic cylinder II is installed on pedestal 1, and piston rod and bottom plate 1002 are affixed；It installs the end of bottom plate 1002
There is friction pulley 1001, mobile towards rail 3 in the movement lower plate 1002 of hydraulic cylinder II, friction pulley 1001 pushes against the another of rail 3
Side.
Gradual change rail processing unit (plant) proposed by the present invention can be high-efficient to rail clamped one time machine-shaping.Molding cutter
Work facial contour and the external envelope facial contour of rail surface mutually agree with, after being processed to rail, fit like a glove with profile, essence
It spends higher.Relative to manual polishing, no dust and residual particles sputtering, and the subtle iron filings generated after processing can be received effectively
Collection is conducive to environmental protection.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of gradual change rail processing unit (plant) of the present invention.
Fig. 2 is the schematic diagram that the present invention limits rail side.
[main element symbol description]
1- pedestal 2- overturns material path 3- rail
4- forms I 502- slideway II of cutterhead 501- slideway
6- portal frame 601- column 602- line slide rail II
Laterally the vertical hold-down mechanism of 9- is taken turns on top to II 8- of 7- sliding block
I 10- transversal pressing mechanism of 901-U type seat 902- hydraulic cylinder
1001- friction pulley 1002- bottom plate 1003- sliding block III
III 11- spindle drive of 1004- line slide rail
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with specific embodiment.
Please refer to Fig. 1, Fig. 2, a kind of gradual change rail processing unit (plant), including pedestal 1, positioned at pedestal two sides multiple support bases 2,
The molding cutterhead 4 that rail 3 is processed, the spindle drive, driving molding cutterhead 4 and the master that drive molding cutterhead 4 to rotate
Drive wheel mechanism that vertical feed mechanism that shaft transmission is gone up and down along the vertical direction, driving rail 3 move in the horizontal direction plus
Working hour limitation rail 3 is only capable of the clamping mechanism moved in the horizontal direction.
Pedestal 1 is equipped with slideway I 501, and each support base 2 is equipped with slideway II 502.Aforementioned slideway I 501 and multiple slideways
II 502 along same level lineal layout, and in cutting operation, common supporting rail 3 at the uniform velocity advances in the horizontal direction.
The work facial contour and the external envelope facial contour of rail 3 for forming cutterhead 4 mutually agree with, and guarantee the precision of polishing operation.
Spindle drive 11 includes servo motor I, spindle box, and servo motor I is used for input power, and output shaft passes through
Belt and belt wheel are connected with the main shaft of spindle box, the output end installing molding cutterhead 4 of main shaft.Start servo motor I, main shaft drives
Molding cutterhead 4 is rotated.
Portal frame 6 is additionally provided on the pedestal 1, portal frame 6 is located at the side of slideway I 501, including two columns 601, each
The column side opposite with another column is equipped with line slide rail I, each column front opposite with slideway I 501 along the vertical direction
(i.e. Z axis) also is provided with line slide rail II 602 along the vertical direction.Spindle drive is integrally installed in the inside (i.e. two of portal frame 6
Between a column 601), spindle box two sides opposite with column are respectively equipped with slider I, and spindle box is opposite with column front
Side be equipped with sliding block II 7, the slider I is installed on the line slide rail I of column side, the sliding block II is being installed in column just
On the line slide rail II 602 in face, auxiliary guiding role is played.
Vertical feed mechanism includes servo motor II, speed reducer, lead screw, and servo motor II is packed on pedestal or portal frame
And connect with speed reducer, the output shaft of speed reducer is connect with lead screw, and the sliding nut assembled on lead screw and spindle box are affixed.Starting
Servo motor II, under the guiding of line slide rail I and slider I, line slide rail II and sliding block II, through lead screw transmission sliding nut band
Dynamic spindle drive and molding cutterhead lifting, realize the vertical feed of cutterhead, carry out to rail circular arc shape and top surface complete
Envelope Milling processing.
Drive wheel mechanism includes motor III, belt wheel, and belt wheel is installed in the side phase on the output shaft of motor III and with rail 3
It connects, the normal pressure by acting on rail applies driving force to rail, makes rail 3 along slideway under the limition orientation of clamping mechanism
Constant-speed operation.
Clamping mechanism includes that laterally top wheel 8, two vertical hold-down mechanisms 9, transversal pressing mechanisms 10, lateral top wheel 8 are equipped with
Two, it is located at the bottom of two columns of portal frame, each laterally top wheel 8 abuts the side of rail respectively, carries out first
The limit in direction.Two vertical hold-down mechanism 9 is located at the two sides of molding cutterhead 4, includes U-shaped seat 901, is installed in U-shaped seat top
Hydraulic cylinder I 902, the pinch roller in U-shaped seat in portion, U-shaped seat 901 are crossed on slideway I 501, and pinch roller is installed in hydraulic cylinder I
902 piston rod end, starts hydraulic cylinder I, and pinch roller moves down and compresses the top surface of rail, carries out the limit in second direction.It is horizontal
Be located at two laterally between top wheel 8 to hold-down mechanism 10, including two with the friction pulleys 1001 of pivot angle function, hydraulic cylinder II,
Bottom plate 1002, the other side of slideway I 501 are symmetrically arranged with two line slide rails III, and 1002 bottom symmetrical of bottom plate sets that there are two sliding blocks
III 1003, the sliding block III 1003 is installed in corresponding line slide rail III, and hydraulic cylinder II is installed on pedestal 1, piston rod with
Bottom plate 1002 is affixed, and the installing of the front end of bottom plate 1002 starts hydraulic cylinder II there are two friction pulley 1001, and bottom plate 1002 is towards rail
3 is mobile, and friction pulley 1001 contacts and push against the another side of rail 3, and rail is integrally pushed up laterally to push up to two and takes turns and guarantees one
Constant-pressure carries out the limit in third direction.By carrying out the limit in aforementioned three directions to rail, the clamping work of rail is completed
Sequence, under the driving of belt wheel, the frictional force generated between friction pulley and rail drives rail 3 even along slideway I 501, slideway II 502
Speed is advanced.
As further improvement of the invention, the slideway I 501, slideway II 502 are all made of rolling slideway (i.e. slideway are along X
Axis direction is equipped with multiple rolling elements), the present invention does not limit the type of slideway certainly.
A kind of workflow of gradual change rail processing unit (plant) of the present invention is as follows:
1, rail 3 to be processed is placed on slideway I 501 and multiple slideways II 502 first, the medial surface of rail 3 and two
A laterally top wheel 8 abuts, and the external envelope facial contour at 3 top of rail and the work facial contour of molding cutterhead 4 is made to coincide；
2, hydraulic cylinder II acts, and by rail global orientation, laterally top takes turns 8 simultaneously after the lateral surface of the contact rail 3 of friction pulley 1001
Apply certain pressure, while hydraulic cylinder I acts, and so that pinch roller is moved down positive pressure above rail 3, keeps rail during the cutting process
Positive pressure eliminates drag caused by cutting, completes the clamping process of rail at this time；
3, motor III acts, and belt wheel applies driving force, under the action of II pressure of hydraulic cylinder, friction pulley 1001 to rail 3
The slideway I 501 and multiple slideways II 502 that the frictional force that generates between rail 3 drives rail 3 to lay in the horizontal direction at the uniform velocity before
Into；
4, according to preset spindle box dropping distance and speed (being determined by gradual change rail processing dimension), servo motor I,
Servo motor II acts, and molding cutterhead is moved down in rotation, starts to process rail after falling into place, and realizes to rail gradually
Become cutting.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Design and range, be intended to be within the scope of the claims of the invention.
Claims (10)
1. a kind of gradual change rail processing unit (plant), it is characterised in that: including pedestal (1), positioned at pedestal two sides multiple support bases (2),
Spindle drive, the driving molding cutterhead of molding cutterhead (4), driving molding cutterhead (4) rotation that rail (3) is processed
(4) and spindle drive go up and down along the vertical direction vertical feed mechanism, driving rail (3) driving for moving in the horizontal direction
Wheel mechanism, process time limit rail (3) are only capable of the clamping mechanism moved in the horizontal direction, which is equipped with slideway I
(501), positioned at the portal frame (6) of I side of slideway, each support base (2) is equipped with slideway II (502), slideway I and multiple slideways
II is located on same level straight line；Spindle drive is slidably installed with the inside in portal frame (6), vertical feed mechanism, clamping
Mechanism is respectively installed on pedestal (1).
2. gradual change rail processing unit (plant) according to claim 1, it is characterised in that: spindle drive include servo motor I,
Spindle box, servo motor I are used for input power, and output shaft is connected by belt and belt wheel with the main shaft of spindle box, main shaft
Output end installing molding cutterhead (4).
3. gradual change rail processing unit (plant) according to claim 2, it is characterised in that: portal frame (6) includes two columns
(601), line slide rail I is arranged in the side of each relatively another column of column (601), and each column (601) is just with respect to slideway I
Line slide rail II (602) are arranged in face.
4. gradual change rail processing unit (plant) according to claim 3, it is characterised in that: the spindle box side opposite with column is equipped with
Slider I, the spindle box side opposite with column front are equipped with sliding block II (7), and the straight line that the slider I is installed in column side is sliding
On rail I, the sliding block II is installed on the positive line slide rail II (602) of column.
5. gradual change rail processing unit (plant) according to claim 2, it is characterised in that: vertical feed mechanism includes servo motor
II, speed reducer, lead screw, servo motor II are packed on pedestal (1) or portal frame (6) and connect with speed reducer, speed reducer it is defeated
Shaft is connect with lead screw；The sliding nut installed on lead screw and spindle box are affixed.
6. gradual change rail processing unit (plant) according to claim 1, it is characterised in that: drive wheel mechanism includes motor III, belt wheel,
Belt wheel is installed on the output shaft of motor III and contacts with the side of rail (3), applies driving force to rail.
7. gradual change rail processing unit (plant) according to claim 1, it is characterised in that: clamping mechanism includes laterally pushing up wheel (8), hanging down
To hold-down mechanism (9), transversal pressing mechanism (10), laterally top wheel (8) is installed in the bottom of portal frame (6) and abuts rail (3)
Side；Vertical hold-down mechanism is crossed on slideway I (501), and the pinch roller of output end compresses the top surface of rail (3)；Laterally pressure
Tight mechanism (10) is installed in the other side on pedestal (1) and being located at slideway I (501), and the friction pulley (1001) of output end pushes against
The another side of rail (3).
8. gradual change rail processing unit (plant) according to claim 8, it is characterised in that: there are two laterally top wheel (8) is set, fill respectively
It is located at the bottom of two columns (601)；There are two vertical hold-down mechanism (9) sets, it is located at the two sides of molding cutterhead (4)；It is horizontal
It is located at two to hold-down mechanism (10) laterally to push up between wheel (8).
9. gradual change rail processing unit (plant) according to claim 7 or 8, it is characterised in that: vertical hold-down mechanism (9) includes U-shaped
Seat (901), the hydraulic cylinder I (902) being installed at the top of U-shaped seat, the pinch roller in U-shaped seat, U-shaped seat (901) are crossed on slideway I
(501) on, pinch roller is installed in the piston rod end of hydraulic cylinder I (902), moves down in the movement lower pressure wheel of hydraulic cylinder I and compresses steel
The top surface of rail (3).
10. gradual change rail processing unit (plant) according to claim 7 or 8, it is characterised in that: transversal pressing mechanism (10) includes rubbing
Wheel (1001), hydraulic cylinder II, bottom plate (1002) are wiped, the pedestal (1) of slideway I (501) other side is equipped with line slide rail III
(1004), the bottom of bottom plate (1002) is equipped with sliding block III (1003), and sliding block III (1003) is installed in line slide rail III (1004)；Liquid
Cylinder pressure II is installed on pedestal (1), and piston rod and bottom plate (1002) are affixed；The end of bottom plate (1002) is installed with friction pulley
(1001), mobile towards rail (3) in the movement lower plate (1002) of hydraulic cylinder II, friction pulley (1001) pushes against the another of rail (3)
One side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507118.8A CN109332815B (en) | 2018-12-10 | 2018-12-10 | Gradual change rail processingequipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507118.8A CN109332815B (en) | 2018-12-10 | 2018-12-10 | Gradual change rail processingequipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109332815A true CN109332815A (en) | 2019-02-15 |
| CN109332815B CN109332815B (en) | 2024-04-19 |
Family
ID=65304171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507118.8A Active CN109332815B (en) | 2018-12-10 | 2018-12-10 | Gradual change rail processingequipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332815B (en) |
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| CN204657186U (en) * | 2015-04-30 | 2015-09-23 | 江苏先锋钢结构工程有限公司 | A kind of steel pipe bender |
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| US20170050647A1 (en) * | 2014-02-04 | 2017-02-23 | Teb | Motorized carriage that is movable in translation on a rail |
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| CN107639501A (en) * | 2017-11-10 | 2018-01-30 | 成都艾格科技有限责任公司 | The automatic rail grinding machine of intelligence |
| CN108161121A (en) * | 2018-02-11 | 2018-06-15 | 贾凤鸣 | A kind of glass frame cutting-off device for sectional material |
| CN209139998U (en) * | 2018-12-10 | 2019-07-23 | 清华大学天津高端装备研究院洛阳先进制造产业研发基地 | A kind of gradual change rail processing unit (plant) |
-
2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT212863B (en) * | 1956-06-07 | 1961-01-10 | Heinrich Mevissen | Rail fastening on wooden sleepers |
| JP2001071224A (en) * | 1999-09-03 | 2001-03-21 | Okuma Corp | Cross rail clamp device |
| US20030192625A1 (en) * | 2002-04-10 | 2003-10-16 | Cordova J. Vincent | High impact and wear resistant steel |
| CN201686904U (en) * | 2010-05-27 | 2010-12-29 | 郑州昌盛铁路工务科技发展有限公司 | Rail failure strengthening device |
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| CN203778878U (en) * | 2013-12-16 | 2014-08-20 | 吉林大学 | Transverse single bevel seamless welding surface sawing device for steel rails |
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| CN104625930A (en) * | 2015-03-11 | 2015-05-20 | 戚恒 | Steel rail grinding machine |
| CN204657186U (en) * | 2015-04-30 | 2015-09-23 | 江苏先锋钢结构工程有限公司 | A kind of steel pipe bender |
| CN205904799U (en) * | 2016-07-07 | 2017-01-25 | 武汉铁路局武汉工务大修段 | Full section rail welding seam burnishing machine |
| CN107042452A (en) * | 2017-03-16 | 2017-08-15 | 湖南大学 | A kind of steel rail grinding lathe |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109332815B (en) | 2024-04-19 |
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