CN206591376U - Steel-rail rail-road switch belt grinder - Google Patents
Steel-rail rail-road switch belt grinder Download PDFInfo
- Publication number
- CN206591376U CN206591376U CN201621042191.9U CN201621042191U CN206591376U CN 206591376 U CN206591376 U CN 206591376U CN 201621042191 U CN201621042191 U CN 201621042191U CN 206591376 U CN206591376 U CN 206591376U
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- Prior art keywords
- rail
- belt
- steel
- wheel
- road switch
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Abstract
The utility model provides a kind of steel-rail rail-road switch belt grinder.Including：Frame, road wheel, gasoline engine, V-belt, belt sanding head device, horizontal shifting mechanism, angular deflection mechanism and lifting pressure exerting arrangement；Belt sanding head device includes abrasive band, contact (driving) wheel, propelling sheave, strainer and belt sanding head installation base plate；Abrasive band be wound on successively contact (driving) wheel, propelling sheave, tensioning wheel it is cylindrical on.The utility model, as milling tools, is polished steel-rail rail-road switch using abrasive band, and the rubber layer and abrasive band self-characteristic of contact wheel cause abrasive band and rail to be flexible contact in polishing operation, can reduce the influence of polishing machine vibration air exercise mill quality；It can be the polishing operation requirement that the whole profile of rail can be achieved with less envelope number of times, improve polishing operation efficiency.
Description
Technical field
The utility model is related to railway maintenance field of mechanical technique, more particularly to a kind of steel-rail rail-road switch belt grinder.
Background technology
Track switch is that the important line for making rolling stock be transferred to another station track from a station track connects equipment, long-term by train wheel
High load capacity is rolled, and all kinds of damages such as ripple mill, fat edges, crackle, chip off-falling easily occurs, has a strong impact on locomotive operation safety.Railway switch
It is complicated, restriction is more, and maintenance difficulty is very big.At present, each railway department generally uses small-sized steel rail track switch
Sander aids in big-and-middle-sized rail grinding machine to realize to all kinds of rail in switch zones (such as tongue, heart rail, guard rail, wing rail etc.)
Maintenance.These small-sized sanders are rigid contact, times of sander as grinding tool, between emery wheel and rail using emery wheel
What vibrates, and can all directly affect steel rail grinding quality；It must be forced simultaneously in the range of polishing required precision by small straightway envelope
Nearly rail target profile curve, grinding efficiency is low, and operator's labor intensity is big, it is difficult to meet existing railway especially high-speed railway
The high-precision high-efficiency maintenance work demand of track switch.
Utility model content
Embodiment of the present utility model provides a kind of steel-rail rail-road switch belt grinder, to realize using abrasive band to steel track
Trouble is effectively polished.
To achieve these goals, the utility model takes following technical scheme.
A kind of steel-rail rail-road switch belt grinder, including：Frame, road wheel, gasoline engine, V-belt and belt sanding head dress
Put, the road wheel is arranged on the support zone of the frame lower end, the V-belt rotating around on two vee-pulleys,
One of vee-pulley is fixedly connected on output shaft of gasoline engine end and with clutch, and another vee-pulley is fixedly connected
In the drive shaft end of belt sanding head device, the road wheel is walked along the rail, and the belt sanding head dress is centered
Abrasive band as milling tools, steel-rail rail-road switch is polished.
Further, the steel-rail rail-road switch belt grinder also includes：Horizontal shifting mechanism, angular deflection mechanism and lifting
Pressure exerting arrangement.
Further, the horizontal shifting mechanism is provided with one end and is fixedly connected with the water that turbine, one end are fixedly connected with handwheel
Flat transverse-moving mechanism action bars, the horizontal shifting mechanism is rotatably assorted with horizontal screw lead single-degree-of-freedom of the one end with worm screw；Institute
State horizontal shifting mechanism action bars to be rotatably assorted with horizontal supporting plate, the horizontal screw lead is with being fixedly connected on substrate internal band
The pedestal of screw thread is rotatably assorted.
Further, the angular deflection mechanism is fixedly mounted on substrate；The angular deflection mechanism is solid including two ends
Surely the angular deflection mechanism action bars of connection turbine and handwheel, one end carry the horizontal screw lead of worm screw, internal screwed cunning
Block, rotating bar and rotary shaft；The sliding block is slidably matched with substrate single-degree-of-freedom, and the rotating bar turns with rotary shaft single-degree-of-freedom
It is dynamic to coordinate.
Further, the lifting pressure exerting arrangement is fixedly mounted in angular deflection mechanism；The lifting pressure exerting arrangement bag
Include one end and be fixedly connected with handwheel, the lifting pressure exerting arrangement action bars, left guide pillar and the right side that are connected with belt sanding head support leading screw
Guide pillar；Belt sanding head device, gasoline engine, vee-pulley and V-belt are installed with the belt sanding head support.
Further, the belt sanding head device includes abrasive band, contact wheel, propelling sheave, strainer and belt sanding
Head installation base plate；The strainer includes tensioning handle, tensioning wheel, cursor and circular arc positioning teeth groove；The abrasive band according to
It is secondary be wound on the contact wheel, propelling sheave, tensioning wheel it is cylindrical on；The cylindrical propelling sheave is in middle convex；The contact wheel is cylindrical
One layer of rubber is installed, and it is in inner concavity that rubber layer is cylindrical；The periphery of the belt sanding head device is provided with transparent shield.
Further, the angular deflection mechanism drives the belt sanding head relative to 35 degree of rail deflection.
Further, the frame lower end is installed with horizontal supporting plate, the horizontal supporting plate and is installed with
Line slideway, substrate is realized by line slideway with horizontal supporting plate and is slidably matched.
Further, the steel-rail rail-road switch belt grinder also includes digital display, and the digital display is arranged on
Frame upper end, display belt sanding head deflection angle and lifting compression depth.
The rail of the utility model embodiment it can be seen from the technical scheme that above-mentioned embodiment of the present utility model is provided
Track switch belt grinder is using abrasive band as milling tools, and the rubber layer and abrasive band self-characteristic of contact wheel cause abrasive band and rail
It is flexible contact in polishing operation, the influence of polishing machine vibration air exercise mill quality can be reduced；Drive abrasive band rotation and press
Contact wheel is cylindrical to be set to inner concavity, and abrasive band and Rail Surface actual contact area are big during polishing, with less envelope
The polishing operation requirement of the whole profile of rail can be achieved in number, compared to grinder buffing, improves polishing operation efficiency, alleviates
Operator's labor intensity.
The additional aspect of the utility model and advantage will be set forth in part in the description, and these are by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, required in being described below to embodiment
The accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present utility model
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
A kind of steel-rail rail-road switch grinder overall pattern that Fig. 1 provides for the utility model embodiment；
A kind of structure chart for steel-rail rail-road switch grinder frame that Fig. 2 provides for the utility model embodiment；
A kind of structure chart for steel-rail rail-road switch grinder translation mechanism that Fig. 3 provides for the utility model embodiment；
A kind of structure chart for steel-rail rail-road switch grinder deflection mechanism that Fig. 4 provides for the utility model embodiment；
A kind of structure chart for steel-rail rail-road switch grinder elevating mechanism that Fig. 5 provides for the utility model embodiment；
A kind of structure chart for steel-rail rail-road switch grinder grinding head device that Fig. 6 provides for the utility model embodiment.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or the element with same or like function from beginning to end.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the utility model, and can not be construed to this practicality
New limitation.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that being used in specification of the present utility model
Wording " comprising " refer to there is the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or
Other one or more features of addition, integer, step, operation, element, component and/or their group.It should be understood that when us
Element is claimed to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or can also
There is intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.It is used herein to arrange
Taking leave "and/or" includes one or more associated any cells for listing item and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) with the general understanding identical meaning with the those of ordinary skill in the utility model art.Also
It should be understood that those terms defined in such as general dictionary should be understood that with the context of prior art
The consistent meaning of meaning, and unless defined as here, will not be explained with idealization or excessively formal implication.
For ease of the understanding to the utility model embodiment, below in conjunction with accompanying drawing done by taking several specific embodiments as an example into
The explanation of one step, and each embodiment does not constitute the restriction to the utility model embodiment.
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：
The utility model embodiment provide a kind of steel-rail rail-road switch belt grinder, including frame, road wheel, gasoline engine,
Digital display, V-belt, belt sanding head device and its horizontal shifting mechanism, angular deflection mechanism and lifting pressure exerting arrangement；
The road wheel is arranged on the support zone of frame lower end four；The digital display is arranged on frame upper end；The V-belt
Rotating around on two vee-pulleys, one of vee-pulley is fixedly connected on output shaft of gasoline engine end and with clutch,
Another vee-pulley is fixedly connected on the drive shaft end of belt sanding head device.The road wheel is walked along the rail,
Steel-rail rail-road switch is polished as milling tools in the abrasive band that the belt sanding head dress is centered.
The frame lower end, which is installed with horizontal supporting plate, horizontal supporting plate, is installed with line slideway, substrate
Realized and be slidably matched by line slideway with horizontal supporting plate；The horizontal shifting mechanism be provided with one end be fixedly connected turbine,
One end is fixedly connected with the horizontal shifting mechanism action bars of handwheel, rotates and matches somebody with somebody with horizontal screw lead single-degree-of-freedom of the one end with worm screw
Close；Horizontal shifting mechanism action bars is rotatably assorted with horizontal supporting plate, and the horizontal screw lead is with being fixedly connected on substrate
The pedestal of inner threaded is rotatably assorted.
The angular deflection mechanism is fixedly mounted on substrate；The angular deflection mechanism is fixedly connected with turbine including two ends
The horizontal screw lead of angular deflection mechanism action bars, one end with handwheel with worm screw, internal screwed sliding block, rotating bar and
Rotary shaft；The sliding block is slidably matched with substrate single-degree-of-freedom, and the rotating bar is rotatably assorted with rotary shaft single-degree-of-freedom.
The lifting pressure exerting arrangement is fixedly mounted in angular deflection mechanism；The lifting pressure exerting arrangement is fixed including one end
Connection handwheel, the lifting pressure exerting arrangement action bars, left guide pillar and the right guide pillar that are connected with belt sanding head support leading screw；The sand
Belt sanding head device, gasoline engine, vee-pulley and V-belt are installed with band polishing head support.
The belt sanding head device includes abrasive band, contact (driving) wheel, propelling sheave, strainer and belt sanding head peace
Fill substrate；The strainer includes tensioning handle, tensioning wheel, cursor and circular arc positioning teeth groove；The abrasive band successively around
Contact (driving) wheel, propelling sheave, tensioning wheel it is cylindrical on；The cylindrical propelling sheave is in middle convex；Contact (driving) wheel
It is cylindrical that one layer of rubber is installed, and it is in inner concavity that rubber layer is cylindrical；The belt sanding head device is provided with transparent shield.
Described angular deflection mechanism can drive belt sanding head relative to 35 degree of rail deflection；Described numeral shows
Show that device can show belt sanding head deflection angle and lifting compression depth in real time.
Fig. 1 show the overall shaft side figure of steel-rail rail-road switch grinder, and the sander walks in rail (1) by road wheel (6)
On, polishing machine frame include frame (2), internal combustion engine (4), belt sanding head device, horizontal shifting mechanism, angular deflection mechanism and
Lift and handle (5) is installed in pressure exerting arrangement, frame (2), conveniently lift, digital display (3) is installed in frame (2).
Fig. 2 show the structure chart of frame (2) structure of steel-rail rail-road switch grinder, and the road wheel (6) is arranged on frame
(2) support zone of lower end four；Using scalable feed screw nut (7) connection in the middle of the two parts of frame (2) left and right, by adjusting silk
Thick stick nut (7) changes distance between road wheel, can meet different gauge demands.
Fig. 3 show the structure chart of steel-rail rail-road switch grinder translation mechanism, and frame (2) lower end is installed with level
Line slideway (10) is installed with supporting plate (8), supporting plate, substrate (9) is real by line slideway (10) with supporting plate (8)
Now it is slidably matched；The horizontal shifting mechanism is provided with one end and is fixedly connected with the horizontal shifting that turbine, one end are fixedly connected with handwheel
Mechanism action bars (11), is rotatably assorted with horizontal screw lead (12) single-degree-of-freedom of one end with worm screw；The horizontal shifting mechanism
Action bars (11) is rotatably assorted with supporting plate (8), and the horizontal screw lead (12) is with being fixedly connected on inner threaded on substrate (9)
Pedestal be rotatably assorted, rotation hand wheel (11) can by horizontal screw lead (12) drive supporting plate (8) move horizontally.
Fig. 4 show the structure chart of steel-rail rail-road switch grinder deflection mechanism, and the angular deflection mechanism is fixedly mounted on base
On plate (9)；The angular deflection mechanism includes two ends and is fixedly connected with the angular deflection mechanism action bars (13) of turbine and handwheel, one
Horizontal screw lead (14), internal screwed sliding block (18), rotating bar (17) and rotary shaft (16) of the end with worm screw；The cunning
Block (18) is slidably matched with substrate (9) single-degree-of-freedom, and the rotating bar (17) is rotatably assorted with rotary shaft (16) single-degree-of-freedom, rotation
Changing hands wheel (13) can be moved horizontally by horizontal screw lead (14) band movable slider (18), and then pass through rotating bar (17), rotary shaft
(16) sanding apparatus deflection special angle is promoted.Described angular deflection mechanism can drive belt sanding head relative to rail or so
35 degree of deflection；Described digital display (3) and angular deflection disk (15) can show belt sanding head deflection angle in real time.
Fig. 5 show the structure chart of steel-rail rail-road switch grinder elevating mechanism, and the lifting pressure exerting arrangement is fixedly mounted on angle
Spend on deflection mechanism；The lifting pressure exerting arrangement is fixedly connected with handwheel (19) and belt sanding head support leading screw including one end
Lifting pressure exerting arrangement action bars (20), left guide pillar (21a) and the right guide pillar (20) of connection；It can be passed through by rotation hand wheel (19)
Leading screw promotes polishing head support (22) lifting pressure, and polishing head support (22) passes through left guide pillar (21a) and right guide pillar
(20) composition is slidably matched, it is ensured that the accuracy of direction of exerting pressure.Sand is installed with the belt sanding head support (22)
Band grinding head device, gasoline engine, vee-pulley.Described digital display (3) can show lifting compression depth in real time.
Fig. 6 show the structural representation of steel-rail rail-road switch grinder grinding head device, and the belt sanding head device includes
Abrasive band (23), contact (driving) wheel (29), propelling sheave (25), strainer and belt sanding head installation base plate (24)；Described
Tight mechanism includes tensioning handle (27), tensioning wheel (26), cursor (28) and circular arc positioning teeth groove；The abrasive band is wound on successively
Contact (driving) take turns (29), propelling sheave (25), tensioning wheel (26) it is cylindrical on；The cylindrical propelling sheave (25) is in middle convex；Institute
State that contact (driving) wheel (29) is cylindrical to be provided with one layer of rubber, and it is in inner concavity that rubber layer is cylindrical；The belt sanding head device
It is provided with transparent shield.
In summary, the steel-rail rail-road switch belt grinder of the utility model embodiment is connect using abrasive band as milling tools
The rubber layer and abrasive band self-characteristic of wheel trolley cause abrasive band and rail to be flexible contact in polishing operation, can reduce sander
Vibrate the influence to quality of polishing；The contact wheel of the rotation of driving abrasive band and pressure is cylindrical to be set to inner concavity, abrasive band during polishing
It is big with Rail Surface actual contact area, it is the polishing operation requirement of the whole profile of achievable rail with less envelope number of times,
Compared to grinder buffing, polishing operation efficiency is improved, operator's labor intensity is alleviated.
The steel-rail rail-road switch belt grinder of the utility model embodiment has display belt sanding head deflection angle and lifting
The digital display of compression depth, polishing operation precision is controllable；Meanwhile, this sander structure is simple, and Operation and Maintenance is convenient.
One of ordinary skill in the art will appreciate that：Accompanying drawing be module in the schematic diagram of one embodiment, accompanying drawing or
Flow is not necessarily implemented necessary to the utility model.
One of ordinary skill in the art will appreciate that：The part in device in embodiment can be according to embodiment description point
It is distributed in the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.On
The part for stating embodiment can be merged into a part, can also be further split into multiple subassemblies.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model is disclosed
Change or replacement, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should
It is defined by scope of the claims.
Claims (9)
1. a kind of steel-rail rail-road switch belt grinder, it is characterised in that including：Frame, road wheel, gasoline engine, V-belt and abrasive band
Grinding head device, the road wheel is arranged on the support zone of the frame lower end, and the V-belt is rotating around at two three
On belt pulley, one of vee-pulley is fixedly connected on output shaft of gasoline engine end and with clutch, another V-belt
Wheel is fixedly connected on the drive shaft end of belt sanding head device, and the road wheel is walked along the rail, the belt sanding head
The abrasive band centered is filled as milling tools, steel-rail rail-road switch is polished.
2. steel-rail rail-road switch belt grinder according to claim 1, it is characterised in that the steel-rail rail-road switch belt grinder
Also include：Horizontal shifting mechanism, angular deflection mechanism and lifting pressure exerting arrangement.
3. steel-rail rail-road switch belt grinder according to claim 2, it is characterised in that the horizontal shifting mechanism is provided with
One end is fixedly connected with the horizontal shifting mechanism action bars that turbine, one end are fixedly connected with handwheel, the horizontal shifting mechanism and one end
Horizontal screw lead single-degree-of-freedom with worm screw is rotatably assorted；Horizontal shifting mechanism action bars is rotated with horizontal supporting plate matches somebody with somebody
Close, the horizontal screw lead is rotatably assorted with being fixedly connected on the pedestal of inner threaded on substrate.
4. steel-rail rail-road switch belt grinder according to claim 2, it is characterised in that peace is fixed by the angular deflection mechanism
On substrate；The angular deflection mechanism includes two ends and is fixedly connected with the angular deflection mechanism action bars of turbine and handwheel, one
Horizontal screw lead, internal screwed sliding block, rotating bar and rotary shaft of the end with worm screw；The sliding block and substrate single-degree-of-freedom
It is slidably matched, the rotating bar is rotatably assorted with rotary shaft single-degree-of-freedom.
5. steel-rail rail-road switch belt grinder according to claim 2, it is characterised in that the lifting pressure exerting arrangement fixes peace
In angular deflection mechanism；The lifting pressure exerting arrangement is fixedly connected with handwheel and belt sanding head support silk including one end
Lifting pressure exerting arrangement action bars, left guide pillar and the right guide pillar of thick stick connection；Sand is installed with the belt sanding head support
Band grinding head device, gasoline engine, vee-pulley and V-belt.
6. steel-rail rail-road switch belt grinder according to claim 2, it is characterised in that the belt sanding head device includes
Abrasive band, contact wheel, propelling sheave, strainer and belt sanding head installation base plate；The strainer includes tensioning handle, tensioning
Wheel, cursor and circular arc positioning teeth groove；The abrasive band be wound on successively the contact wheel, propelling sheave, tensioning wheel it is cylindrical on；Institute
It is in middle convex to state propelling sheave cylindrical；The contact wheel is cylindrical to be provided with one layer of rubber, and it is in inner concavity that rubber layer is cylindrical；The sand
Periphery with grinding head device is provided with transparent shield.
7. steel-rail rail-road switch belt grinder according to claim 6, it is characterised in that the angular deflection mechanism drives institute
Belt sanding head is stated relative to 35 degree of rail deflection.
8. steel-rail rail-road switch belt grinder according to claim 1, it is characterised in that the frame lower end is installed with
Line slideway is installed with horizontal supporting plate, the horizontal supporting plate, substrate is real by line slideway with horizontal supporting plate
Now it is slidably matched.
9. steel-rail rail-road switch belt grinder according to claim 1, it is characterised in that the steel-rail rail-road switch belt grinder
Also include digital display, the digital display is arranged on frame upper end, and display belt sanding head deflection angle and lifting are applied
Press depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621042191.9U CN206591376U (en) | 2016-09-07 | 2016-09-07 | Steel-rail rail-road switch belt grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621042191.9U CN206591376U (en) | 2016-09-07 | 2016-09-07 | Steel-rail rail-road switch belt grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206591376U true CN206591376U (en) | 2017-10-27 |
Family
ID=60130866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621042191.9U Expired - Fee Related CN206591376U (en) | 2016-09-07 | 2016-09-07 | Steel-rail rail-road switch belt grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206591376U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938586A (en) * | 2017-12-04 | 2018-04-20 | 常州工学院 | The automatic formula track that switches tracks is removed obstacles and diagnostic device |
| CN108166341A (en) * | 2018-01-06 | 2018-06-15 | 北京铁路局保定工务段 | A kind of rail exterior feature track numerical coutrol fine grinding machine |
| CN111455753A (en) * | 2020-04-23 | 2020-07-28 | 邝文建 | Flexible steel rail grinding device and steel rail grinding vehicle |
| CN111648176A (en) * | 2020-06-10 | 2020-09-11 | 北京同和时代轨道科技有限公司 | Curved surface grinding machine and grinding process for carrying out profile grinding by using same |
| CN111926637A (en) * | 2020-09-03 | 2020-11-13 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Railway switch polishing trolley |
| CN111971434A (en) * | 2018-06-15 | 2020-11-20 | 罗贝尔铁路建筑机械有限责任公司 | Rail grinding machine for grinding rails of a track |
-
2016
- 2016-09-07 CN CN201621042191.9U patent/CN206591376U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938586A (en) * | 2017-12-04 | 2018-04-20 | 常州工学院 | The automatic formula track that switches tracks is removed obstacles and diagnostic device |
| CN107938586B (en) * | 2017-12-04 | 2019-09-10 | 常州工学院 | Automatically the formula track that switches tracks is removed obstacles and diagnostic device |
| CN108166341A (en) * | 2018-01-06 | 2018-06-15 | 北京铁路局保定工务段 | A kind of rail exterior feature track numerical coutrol fine grinding machine |
| CN108166341B (en) * | 2018-01-06 | 2019-04-19 | 北京铁路局保定工务段 | A kind of rail exterior feature track numerical coutrol fine grinding machine |
| CN111971434A (en) * | 2018-06-15 | 2020-11-20 | 罗贝尔铁路建筑机械有限责任公司 | Rail grinding machine for grinding rails of a track |
| CN111971434B (en) * | 2018-06-15 | 2021-10-29 | 罗贝尔铁路建筑机械有限责任公司 | Rail grinding machine for grinding rails of a track |
| CN111455753A (en) * | 2020-04-23 | 2020-07-28 | 邝文建 | Flexible steel rail grinding device and steel rail grinding vehicle |
| CN111648176A (en) * | 2020-06-10 | 2020-09-11 | 北京同和时代轨道科技有限公司 | Curved surface grinding machine and grinding process for carrying out profile grinding by using same |
| CN111926637A (en) * | 2020-09-03 | 2020-11-13 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Railway switch polishing trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180801 Address after: 262600 2 Building 1, Weifang Road, Longgang Town, Linqu, Weifang, Shandong, China, 6978 Patentee after: Shandong Zhi Wo rail transportation equipment Co., Ltd. Address before: 100044 Beijing city Haidian District Xizhimen Shangyuan Village No. 3 Patentee before: Beijing Jiaotong University |
|
| 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: 20171027 Termination date: 20190907 |