CN106223144A - Rail corrugation belt grinder - Google Patents
Rail corrugation belt grinder Download PDFInfo
- Publication number
- CN106223144A CN106223144A CN201610808091.0A CN201610808091A CN106223144A CN 106223144 A CN106223144 A CN 106223144A CN 201610808091 A CN201610808091 A CN 201610808091A CN 106223144 A CN106223144 A CN 106223144A
- Authority
- CN
- China
- Prior art keywords
- wheel
- rail
- belt grinder
- rail corrugation
- townhouse
- 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.)
- Pending
Links
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
-
- 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
- E01B31/175—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding using grinding belts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a kind of rail corrugation belt grinder.Including: abrasive band, driving wheel, regulating wheel, townhouse contact wheel, frame, bracing frame, road wheel, internal combustion engine and lifting device for exerting, abrasive band be wound on successively be installed on bracing frame driving wheel, regulating wheel, townhouse contact wheel cylindrical on, bracing frame by lifting device for exerting be connected with described internal combustion engine；Road wheel is arranged on the Support Position of described frame lower end, and road wheel is walked along rail.The rail corrugation belt grinder that the present invention provides uses abrasive band to make abrasive band and rail be flexible contact when polishing operation as milling tools, contact wheel rubber layer and abrasive band self-characteristic, can reduce the polisher vibration impact on polishing quality；The deflection of workpiece polishing mechanism uses angular deflection dish and alignment pin to complete being accurately positioned of grinding angle；Contact wheel uses concave townhouse contact wheel, is effectively increased the grinding efficiency of rail corrugation.
Description
Technical field
The present invention relates to railway maintenance mechanical equipment technical field, particularly relate to a kind of rail corrugation belt grinder.
Background technology
Railway track long-play easily occurs that ripple grinds, and affects stationarity and the comfort level of train operation, it is therefore desirable to
Polish so that Rail Surface is smooth.Tradition eliminates ripple mill polishing and uses wheel sander, emery wheel and rail rigidity to connect more
Touching, vibrations are big；Emery wheel is little with the contact area of weld seam, and abrasion of grinding wheel is fast, so it is high constantly to adjust emery wheel in bruting process
Degree, operator's labor intensity is big；Existing rail corrugation wheel sander needs both sides installation running roller to assist, and size is relatively
Greatly, it is not easy to operation.
Summary of the invention
The embodiment provides a kind of rail corrugation belt grinder, to realize rail corrugation is carried out effectively
Polishing.
To achieve these goals, this invention takes following technical scheme.
A kind of rail corrugation belt grinder, including:
Abrasive band, driving wheel, regulating wheel, townhouse contact wheel, frame, bracing frame, road wheel, internal combustion engine and lifting pressure dress
Putting, described abrasive band is wound on the cylindrical of described driving wheel, regulating wheel, townhouse contact wheel successively, described driving wheel, regulating wheel, connection
Row's contact wheel is mounted on support frame as described above, and described lifting device for exerting is arranged on above described frame, and support frame as described above leads to
Cross described lifting device for exerting to be connected with described internal combustion engine；Described road wheel is arranged on the Support Position of described frame lower end,
Described road wheel is walked along rail, and rail, as milling tools, is polished by described abrasive band.
Further, described lifting device for exerting includes elevating screw, double guide pillar, hoistable platform and handwheel, described liter
Fall leading screw comprises self-locking bearing, and the drive end of described self-locking bearing is connected with described handwheel, Partner and described elevating screw phase
Even, described hoistable platform is fixing with described elevating screw to be connected, and described hoistable platform is slidably connected with the guide pillar of both sides, described
Support, internal combustion engine are fixing with hoistable platform to be connected.
Further, described elevating screw end is connected with the thrust bearing being fixed on underframe sleeve, shakes described hands
Wheel makes described elevating screw rotate, and fixes the underframe transverse shifting being connected with the nut of described elevating screw, and relies on described
The screw thread of elevating screw realizes self-locking.
Further, when rotating described handwheel, described elevating screw rotates, and described elevating screw drives described hoistable platform
Move down, and then described internal combustion engine moves down with support frame as described above entirety so that described townhouse contact wheel compresses rail to be implemented to beat
Mill operation.
Further, the side of described frame arranges angular deflection dish, on described angular deflection dish from the beginning of perpendicular bisector
There is a hole every once, after adjusting angle, hole is plugged stop pin to lock grinding angle.
Further, described townhouse contact wheel includes the contact wheel of the same shape of 3 townhouses, and each described contact wheel leads to
Crossing connecting plate and be fixedly installed in the bottom of support frame as described above, the cylindrical of described contact wheel is provided with outside one layer of rubber, and rubber layer
Circle is in inner concavity.
Further, described regulating wheel is arranged in tension structure, and described tension structure also includes support arm, baffle plate, bullet
Spring and tensioning spanner, described regulating wheel is positioned on described support arm, is provided with spring between described support arm and described baffle plate, logical
Cross described tensioning spanner and promote described regulating wheel tensioning.
Further, the framework of described rail corrugation belt grinder includes described frame, cantilever and telescopic arm, by adjusting
The length of whole described telescopic arm adapts to the rail of different in width.
Further, described frame be provided above character display, described character display display rail corrugation sand
Deflection angle with polisher and lifting compression depth.
Further, the outside of described rail corrugation belt grinder is provided with transparent shield.
The technical scheme that thered is provided by embodiments of the invention described above is it can be seen that the steel rail profile that provides of the embodiment of the present invention
Belt grinder uses abrasive band to make abrasive band and rail in polishing as milling tools, contact wheel rubber layer and abrasive band self-characteristic
It is flexible contact during operation, the polisher vibration impact on polishing quality can be reduced；The deflection of workpiece polishing mechanism uses angle inclined
Rotating disk and alignment pin complete being accurately positioned of grinding angle；Contact wheel uses concave townhouse contact wheel, is effectively increased steel
The grinding efficiency of rail ripple mill.
Aspect and advantage that the present invention adds will part be given in the following description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, required use in embodiment being described below
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for this
From the point of view of the those of ordinary skill of field, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
The axonometric drawing of a kind of rail corrugation belt grinder that Fig. 1 provides for the embodiment of the present invention
The front view of a kind of rail corrugation belt grinder that Fig. 2 provides for the embodiment of the present invention
The pressure exerting arrangement schematic diagram of a kind of rail corrugation belt grinder that Fig. 3 provides for the embodiment of the present invention
The abrasive band tension mechanism schematic diagram of a kind of rail corrugation belt grinder that Fig. 4 provides for the embodiment of the present invention.
The structure of the townhouse contact wheel that Fig. 5 show a kind of rail corrugation belt grinder that the embodiment of the present invention provides is shown
It is intended to
Detailed description of the invention
Embodiments of the present invention are described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein " ", "
Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that use in the description of the present invention arranges
Diction " including " refers to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or adds
Other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that when we claim unit
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connections or couple.Wording used herein
"and/or" includes one or more any cell listing item being associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology) have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Also should
Being understood by, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The meaning that justice is consistent, and unless defined as here, will not explain by idealization or the most formal implication.
For ease of the understanding to the embodiment of the present invention, do as a example by several specific embodiments further below in conjunction with accompanying drawing
Explanation, and each embodiment is not intended that the restriction to the embodiment of the present invention.
Embodiments provide a kind of rail corrugation belt grinder, mainly include abrasive band, driving wheel, regulating wheel,
Townhouse contact wheel, frame, bracing frame, telescopic arm, cantilever, road wheel, internal combustion engine, horizontal moving gear, lifting device for exerting.Sand
Band is wound on the cylindrical of driving wheel, regulating wheel, townhouse contact wheel successively；Driving wheel, regulating wheel, townhouse contact wheel are mounted on propping up
On support.Described lifting device for exerting is arranged on above described frame, and support frame as described above is by lifting device for exerting and internal combustion engine
It is connected；Described road wheel is arranged on the Support Position of described frame lower end, and described road wheel is walked along rail, and described abrasive band is made
For milling tools, rail is polished.
Described lifting device for exerting includes elevating screw, double guide pillar, hoistable platform and handwheel；Described elevating screw with from
Lock bearing fit, the drive end of self-locking bearing is connected with handwheel, Partner is connected with elevating screw；Described hoistable platform and lifting
Leading screw is fixing to be connected, and hoistable platform is slidably connected with the guide pillar of both sides；Support frame as described above, internal combustion engine are fixing with hoistable platform even
Connect.
The side of described frame is provided with angular deflection dish, starts to arrange every once from perpendicular bisector on angular deflection dish
One hole, after adjusting angle, plugs stop pin i.e. lockable grinding angle in hole.On graduated disc, each scale hole is attached
The nearly number of degrees all engraving correspondence.
Described townhouse contact wheel includes the contact wheel of the same shape of 3 townhouses, and each contact wheel is fixed by connecting plate
Being installed on bracing frame bottom, contact wheel cylindrical is provided with one layer of rubber, and rubber layer cylindrical is inner concavity.Whole rail corrugation sand
Outside with polisher is provided with transparent shield.
Character display can show deflection angle and the lifting compression depth of rail corrugation belt grinder in real time.
Fig. 1 show the axonometric drawing of a kind of rail corrugation belt grinder that the embodiment of the present invention provides.This polisher by
Rail running wheels (11) walks on rail (1).Polisher framework is made up of frame (14), cantilever (15), telescopic arm (2), stretches
The length adjustable of contracting arm (2), to adapt to the rail (1) of different in width.Frame (14) top have internal combustion engine (3), handrail (4),
The parts such as handwheel (5), character display (6).Workpiece polishing mechanism is positioned at directly over rail (1), by driving wheel (9), regulating wheel (8),
The parts compositions such as abrasive band (7), bracing frame (12), hoistable platform (18), townhouse contact wheel (13).It is also equipped with at frame (14) end
Angular deflection dish (10) is used for determining polisher deflection angle.
Fig. 2 show the side view of a kind of rail corrugation belt grinder that the embodiment of the present invention provides.Internal combustion engine (3) leads to
Cross shaft coupling (16) to be connected with driving wheel (9).Angular deflection dish (10) starts to make a hole every once from perpendicular bisector,
From-15 ° to+15 °, after adjusting angle, plug stop pin (10a) i.e. lockable grinding angle.In view of the adding of hole on graduated disc
Work is convenient, compares through calculating, and in certain accuracy rating, the position dimension making hole is all 0.5 integral multiple.Additionally, for side
Just operator, engraves the number of degrees of correspondence on graduated disc near each scale hole.Sanding apparatus uses whole lateral moving.
Shaking handwheel (5) during operation makes elevating screw (17) rotate, elevating screw (17) end and the thrust being fixed on underframe sleeve
Bearing is connected, and during so elevating screw (17) rotates, fixes the underframe meeting transverse shifting being connected with elevating screw nut, relies on and rise
Fall threads of lead screw realizes self-locking.
Fig. 3 show the front view of a kind of rail abrasive band ripple mill polisher that the embodiment of the present invention provides.Sanding apparatus liter
Descending mechanism uses elevating screw (17) to complete, and needs lead (16) to coordinate during elevating screw (17) lifting, for making overall knot
Structure is symmetrical, uses double lead, and elevating screw (17) includes self-locking bearing, is connected with handwheel (5) by the drive end of self-locking bearing,
Partner is connected with elevating screw (17), and elevating screw (17) only just can rotate when handwheel (5) rotates, thus realizes self-locking
Function.During rotation hand wheel (5), elevating screw (17) drives hoistable platform (18) to move down, and then internal combustion engine (3) and bracing frame
(12) entirety moves down so that townhouse contact wheel (13) compresses rail and implements polishing operation.
Fig. 4 show the tension structure schematic diagram of rail belt grinder, and described regulating wheel (8) is arranged at tension structure
In, described tension structure also includes support arm (22), baffle plate (23), spring (21) and tensioning spanner (20), wherein, regulating wheel
(8) it is positioned on support arm (22), between support arm (22) and baffle plate (23), has spring (21), can be pushed away by tensioning spanner (20)
Dynamic regulating wheel (8) tensioning.
Fig. 5 show the structural representation of townhouse contact wheel.The indent contact wheel (13) being sequentially connected with 3 is by connecting
Plate (19) townhouse is arranged on support (12), thus has the function eliminating ripple mill.
In sum, the steel rail profile belt grinder that the embodiment of the present invention provides uses abrasive band as milling tools, connects
Wheel trolley rubber layer and abrasive band self-characteristic make abrasive band and rail be flexible contact when polishing operation, can reduce polisher and shake
The dynamic impact on polishing quality；The deflection of workpiece polishing mechanism uses angular deflection dish and alignment pin to complete the most fixed of grinding angle
Position；Contact wheel uses concave townhouse contact wheel, is effectively increased the grinding efficiency of rail corrugation.
Horizontal shifting mechanism in the steel rail profile belt grinder that the embodiment of the present invention provides uses elevating screw air exercise
Mill support translates, and lifting pressure exerting arrangement uses the double guide rail mode of elevating screw to realize the overall liter of internal combustion engine and sanding apparatus
Fall, encoder and LCDs by coupling with elevating screw can show polishing amount and deflection angle in real time.Meanwhile, originally
Sander structure is simple, and Operation and Maintenance is convenient.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, module in accompanying drawing or
Flow process is not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that: the parts in device in embodiment can describe according to embodiment and divide
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
The parts stating embodiment can merge into parts, it is also possible to is further split into multiple subassembly.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, the change that can readily occur in or replacement,
All should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
It is as the criterion.
Claims (10)
1. a rail corrugation belt grinder, it is characterised in that including:
Abrasive band, driving wheel, regulating wheel, townhouse contact wheel, frame, bracing frame, road wheel, internal combustion engine and lifting device for exerting, institute
Stating abrasive band to be wound on successively on the cylindrical of described driving wheel, regulating wheel, townhouse contact wheel, described driving wheel, regulating wheel, townhouse contact
Wheel is mounted on support frame as described above, and described lifting device for exerting is arranged on above described frame, and support frame as described above is by described
Lifting device for exerting is connected with described internal combustion engine；Described road wheel is arranged on the Support Position of described frame lower end, described row
Travelling wheel is walked along rail, and rail, as milling tools, is polished by described abrasive band.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that described lifting device for exerting includes rising
Fall leading screw, double guide pillar, hoistable platform and handwheel, described elevating screw comprises self-locking bearing, the drive end of described self-locking bearing
Be connected with described handwheel, Partner is connected with described elevating screw, and described hoistable platform is fixing with described elevating screw to be connected, institute
The guide pillar stating hoistable platform and both sides is slidably connected, and support frame as described above, internal combustion engine are fixing with hoistable platform to be connected.
Rail corrugation belt grinder the most according to claim 2, it is characterised in that described elevating screw end is with fixing
Thrust bearing on underframe sleeve is connected, and shakes described handwheel and makes described elevating screw rotate, with the spiral shell of described elevating screw
Female fixing underframe transverse shifting connected, and rely on the screw thread of described elevating screw to realize self-locking.
Rail corrugation belt grinder the most according to claim 2, it is characterised in that when rotating described handwheel, described liter
Fall screw turns, described elevating screw drives described hoistable platform to move down, and then described internal combustion engine is whole with support frame as described above
Body moves down so that described townhouse contact wheel compresses rail and implements polishing operation.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that the side of described frame arranges angle
Deflexion disk, starts there is a hole every once from perpendicular bisector on described angular deflection dish, after adjusting angle, plugs in hole
Stop pin locks grinding angle.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that described townhouse contact wheel includes 3
The contact wheel of the same shape of townhouse, each described contact wheel is fixedly installed in the bottom of support frame as described above, institute by connecting plate
The cylindrical stating contact wheel is provided with one layer of rubber, and rubber layer cylindrical is inner concavity.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that described regulating wheel is arranged at tensioning knot
In structure, described tension structure also includes support arm, baffle plate, spring and tensioning spanner, and described regulating wheel is positioned on described support arm,
It is provided with spring between described support arm and described baffle plate, promotes described regulating wheel tensioning by described tensioning spanner.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that described rail corrugation belt grinder
Framework include described frame, cantilever and telescopic arm, adapt to the rail of different in width by the length adjusting described telescopic arm.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that being provided above of described frame is several
Word display, the deflection angle of described character display display rail corrugation belt grinder and lifting compression depth.
Rail corrugation belt grinder the most according to claim 1, it is characterised in that described rail corrugation belt sanding
The outside of machine is provided with transparent shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808091.0A CN106223144A (en) | 2016-09-07 | 2016-09-07 | Rail corrugation belt grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808091.0A CN106223144A (en) | 2016-09-07 | 2016-09-07 | Rail corrugation belt grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106223144A true CN106223144A (en) | 2016-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610808091.0A Pending CN106223144A (en) | 2016-09-07 | 2016-09-07 | Rail corrugation belt grinder |
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| CN (1) | CN106223144A (en) |
Cited By (13)
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| CN106958172A (en) * | 2017-05-13 | 2017-07-18 | 孚克如姆智能科技（苏州）有限公司 | Rail ripple sanding apparatus |
| CN107012751A (en) * | 2017-05-11 | 2017-08-04 | 浙江风雷信息科技有限公司 | A kind of intelligent parking equipment high security rail maintenance device |
| CN107034751A (en) * | 2017-06-26 | 2017-08-11 | 重庆理工大学 | A kind of rail grinding machine |
| CN107042452A (en) * | 2017-03-16 | 2017-08-15 | 湖南大学 | A kind of steel rail grinding lathe |
| CN107130483A (en) * | 2017-06-26 | 2017-09-05 | 重庆理工大学 | A kind of emery wheel control device for rail grinding machine |
| CN110067161A (en) * | 2018-01-24 | 2019-07-30 | 土耳其机械公司 | Orbital sander |
| CN110582608A (en) * | 2017-04-29 | 2019-12-17 | 罗贝尔铁路建筑机械有限责任公司 | Grinding machine for grinding rails of a track |
| CN110820445A (en) * | 2019-12-04 | 2020-02-21 | 北京交通大学 | Abrasive belt grinding type all-type steel rail grinding device and grinding method thereof |
| CN111005270A (en) * | 2019-12-31 | 2020-04-14 | 北京交通大学 | Compact sand belt type steel rail grinding device |
| CN111088736A (en) * | 2019-12-30 | 2020-05-01 | 山东博砺思轨道交通装备科技有限公司 | Steel rail profiling grinding machine |
| CN111118987A (en) * | 2019-12-30 | 2020-05-08 | 山东智沃轨道交通设备有限公司 | Multifunctional electric control abrasive belt steel rail refiner |
| CN111851176A (en) * | 2019-12-30 | 2020-10-30 | 山东博砺思轨道交通装备科技有限公司 | Steel rail profiling grinding machine |
| CN113073504A (en) * | 2021-05-06 | 2021-07-06 | 山东智沃轨道交通设备有限公司 | Lithium electricity abrasive band rail vertical sander |
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| CN107042452B (en) * | 2017-03-16 | 2019-04-09 | 湖南大学 | A kind of steel rail grinding lathe |
| CN107042452A (en) * | 2017-03-16 | 2017-08-15 | 湖南大学 | A kind of steel rail grinding lathe |
| CN110582608B (en) * | 2017-04-29 | 2021-05-25 | 罗贝尔铁路建筑机械有限责任公司 | Grinding machine for grinding rails of a track |
| CN110582608A (en) * | 2017-04-29 | 2019-12-17 | 罗贝尔铁路建筑机械有限责任公司 | Grinding machine for grinding rails of a track |
| CN107012751B (en) * | 2017-05-11 | 2018-09-04 | 骆泽锋 | A kind of intelligent parking equipment high security rail maintenance device |
| CN107012751A (en) * | 2017-05-11 | 2017-08-04 | 浙江风雷信息科技有限公司 | A kind of intelligent parking equipment high security rail maintenance device |
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| CN110820445A (en) * | 2019-12-04 | 2020-02-21 | 北京交通大学 | Abrasive belt grinding type all-type steel rail grinding device and grinding method thereof |
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Effective date of registration: 20180801 Address after: 262600 2 Building 1, Weifang Road, Longgang Town, Linqu, Weifang, Shandong, China, 6978 Applicant after: Shandong Zhi Wo rail transportation equipment Co., Ltd. Address before: 100044 Beijing city Haidian District Xizhimen Shangyuan Village No. 3 Applicant before: Beijing Jiaotong University |
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