CN109098051A - Railway ballast tamping unit between a kind of pillow - Google Patents
Railway ballast tamping unit between a kind of pillow Download PDFInfo
- Publication number
- CN109098051A CN109098051A CN201810981074.6A CN201810981074A CN109098051A CN 109098051 A CN109098051 A CN 109098051A CN 201810981074 A CN201810981074 A CN 201810981074A CN 109098051 A CN109098051 A CN 109098051A
- Authority
- CN
- China
- Prior art keywords
- pillow
- railway ballast
- lifting assembly
- tamping unit
- ballast tamping
- 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.)
- Withdrawn
Links
- 239000012530 fluid Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000004575 stone Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 241001669679 Eleotris Species 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010068051 Chimerism Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
- E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
- E01B27/20—Compacting the material of the track-carrying ballastway, e.g. by vibrating the track, by surface vibrators
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The present invention relates to railway ballast tamping units between a kind of pillow, including lifting assembly and compacting component, are connected between the lifting assembly and compacting component by damper (1), the lifting assembly uses internal and external frame nesting type structure or Open architecture.Compared with the prior art, the invention has the advantages that: large-scale maintenance machinery can be integrated in for fixed point compacting being can be realized, improving railway ballast compactness between pillow, improve railway roadbed stability between the tamping operation of railway ballast pillow.The present invention can both be integrated in large-scale maintenance machinery and combine job position automatic positioning equipment, realize and tamp between the intelligent of railway ballast pillow, the tamping operation that can also be integrated under light track maintenance machinery realization hand fit.The internal and external frame nested type lifting assembly that the present invention uses is rigidly preferable, while can be adjusted in time after abrasion occurs in director element and continue tamping operation, to substantially extend the working life of the present apparatus.
Description
Technical field
The present invention relates to railway ballast tamping units between a kind of railway maintenance mechanized equipment more particularly to a kind of pillow.
Background technique
After rail track tamping operation, railway ballast is redistributed in railway roadbed, and railway ballast is closely knit under sleeper, and railway ballast is loose between pillow, together
When pillow between pick nest is formed in railway ballast.The backfill of the pick nest at present, which relies primarily on, manually to be backfilled, and is seldom tamped after backfill
Processing causes railway ballast between pillow excessively loose, and the air that may be flowed in train high speed traveling process takes up, and falls on the stone tiny fragments of stone, coal, etc.
Rail Surface, or even train can be caused to hit.Simultaneously because railway ballast is loose between pillow, railway roadbed stability is poor, and rail is in train
Sinking or movement are easy to happen after operation.
The Chinese utility model patent of Patent No. ZL201720746027.4 discloses a kind of small-sized automatic hydraulic railway
Route tamper vehicle belongs to railway line maintenance apparatus field.It is characterized by comprising reinforcement mechanisms and walking chassis, described
Walking chassis direction of travel front and rear sides lower part is equipped with walking mechanism, and walking chassis top is divided into front and back on the basis of direction of travel
Two regions, the front area left and right sides is respectively provided with one group of reinforcement mechanism parallel with railway track sleeper, in two groups of rammer compacters
The front and back side of structure is respectively provided with one group of folder rail mechanism, is equipped in the middle part of walking chassis and is able to drive the lower road machine that complete machine goes up and down and rotates
Structure.The utility model is a kind of artificial intelligent type equipment of electromechanical integration, and transfer, automation to equipment can be realized in one
Whole operations such as road up and down of tamping operation, equipment, are not only greatly saved manpower, and improve operation quality, to row
Vehicle interference is small, realizes industry upgrading of the railway track track switch tamping operation from mechanization to automation.But the utility model
Not only structure is complicated for reinforcement mechanism, and the not set guiding of structure of its positioning guide column component adjusts structure, structure rigidity itself compared with
Difference has the compactness of railway ballast, compacting effect and railway roadbed stability rail bilateral pillow after guide frame generates abrasion
Larger adverse effect still needs to be further improved.
Summary of the invention
In order to solve technological deficiency existing for above-mentioned existing small-sized automatic hydraulic railway track tamper vehicle, what the present invention used
Technical solution is specific as follows:
Railway ballast tamping unit between a kind of pillow, including lifting assembly and compacting component, lead between the lifting assembly and compacting component
It crosses damper to be connected, the lifting assembly uses internal and external frame nesting type structure.
Preferably, the internal and external frame nesting type structure includes the first support plate, equipped with the in first support plate
One lifting cylinder is being equipped with inner frame, the inner frame in first support plate around first lifting cylinder
It is fixed with several gib blocks on outer wall, outer framework is provided on the outside of the inner frame, several tune are housed on the outer framework inner wall
Whole cushion block, the adjustment cushion block are connected by adjusting screw with the outer framework, the adjustment cushion block and the adjusting screw
Between for be threadedly coupled, by the gib block and it is described adjustment cushion block between relative position be arranged to mutual embedded structure shape
Formula.
In any of the above-described scheme preferably, the compacting component includes bottom plate, and vibration group is housed above the bottom plate
Part, bottom plate lower section both ends are respectively arranged with tamping block.
In any of the above-described scheme preferably, the vibration component includes bearing block, and the bearing block is fixedly mounted on
On the bottom plate, shaft is housed on the bearing block, eccentric wheel is housed in the shaft.
In any of the above-described scheme preferably, including motor, the shaft input terminal are connected with the motor output end
It connects.
In any of the above-described scheme preferably, including motor bracket, the motor are fixedly mounted on the motor bracket
On, the motor bracket is fixedly mounted on the bottom plate.
In any of the above-described scheme preferably, the bearing block includes first bearing seat and second bearing seat, and described the
One bearing block and second bearing seat are mounted on shield.
In any of the above-described scheme preferably, the damper uses hydra-shock absorber or mechanical damper.
In order to solve technological deficiency existing for above-mentioned existing small-sized automatic hydraulic railway track tamper vehicle, what the present invention used
Another technical solution is specific as follows:
Railway ballast tamping unit between a kind of pillow, including lifting assembly and compacting component, lead between the lifting assembly and compacting component
It crosses damper to be connected, the lifting assembly uses Open architecture.
Preferably, the Open architecture includes the second support plate, is gone up and down in second support plate equipped with second oily
Cylinder is provided with pilot hole in second support plate close to second lifting cylinder, and the pilot hole is provided with lifting and leads
Column.
In any of the above-described scheme preferably, the compacting component includes bottom plate, and vibration group is housed above the bottom plate
Part, bottom plate lower section both ends are respectively arranged with tamping block.
In any of the above-described scheme preferably, the vibration component includes bearing block, and the bearing block is fixedly mounted on
On the bottom plate, shaft is housed on the bearing block, eccentric wheel is housed in the shaft.
In any of the above-described scheme preferably, including motor, the shaft input terminal are connected with the motor output end
It connects.
In any of the above-described scheme preferably, including motor bracket, the motor are fixedly mounted on the motor bracket
On, the motor bracket is fixedly mounted on the bottom plate.
In any of the above-described scheme preferably, the bearing block includes first bearing seat and second bearing seat, and described the
One bearing block and second bearing seat are mounted on shield.
In any of the above-described scheme preferably, the damper uses hydra-shock absorber or mechanical damper.
Compared with the prior art, the invention has the advantages that: large-scale maintenance machinery can be integrated between railway ballast pillow
Tamping operation can be realized fixed point compacting, improve railway ballast compactness between pillow, improves railway roadbed stability.The present invention can be both integrated in
Large-scale maintenance machinery simultaneously combines job position automatic positioning equipment, realizes and tamps between the intelligent of railway ballast pillow, can also be integrated in
Light track maintenance machinery realizes the tamping operation under hand fit.The internal and external frame nested type lifting assembly rigidity that the present invention uses compared with
It is good, while tamping operation can be adjusted and continued in time after abrasion occurs in director element, to substantially extend this dress
The working life set.
Detailed description of the invention
The main view of Fig. 1 one preferred embodiment of railway ballast tamping unit between pillow of the invention；
The A-A cross-sectional view of Fig. 2 railway ballast tamping unit embodiment illustrated in fig. 1 between pillow of the invention；
The perspective view of Fig. 3 railway ballast tamping unit embodiment illustrated in fig. 1 between pillow of the invention；
The main view of Fig. 4 another preferred embodiment of railway ballast tamping unit between pillow of the invention；
The left view of Fig. 5 railway ballast tamping unit embodiment illustrated in fig. 4 between pillow of the invention；
The working state schematic representation of Fig. 6 railway ballast tamping unit embodiment illustrated in fig. 4 between pillow of the invention.
Description of symbols:
1 damper；2 eccentric wheels；3 shafts；4 motors；5 motor brackets；6 bottom plates；7 tamping blocks；8 second lifting cylinders；9 liftings are led
Column；10 shields；11 bearing blocks；12 outer frameworks；13 inner frames；14 first lifting cylinders；15 adjusting screws；16 adjustment cushion blocks；
17 gib blocks.
Specific embodiment
The technical solution of railway ballast tamping unit between the pillow is described in detail below with reference to Fig. 1-6:
Embodiment one:
Railway ballast tamping unit between a kind of pillow, including lifting assembly and compacting component, lead between the lifting assembly and compacting component
It crosses damper 1 to be connected, the lifting assembly uses internal and external frame nesting type structure.The internal and external frame nesting type structure includes
First support plate is equipped with the first lifting cylinder 14 in first support plate, described in around the first lifting cylinder 14
Inner frame 13 is housed in first support plate, several gib blocks 17 is fixed on 13 outer wall of inner frame, is provided on the outside of inner frame 13
Outer framework 12 is equipped with several adjustment cushion blocks 16 on 12 inner wall of outer framework, and adjustment cushion block 16 is by adjusting screw 15 and outer framework 12
It is connected, adjusts to be threadedly coupled between cushion block 16 and adjusting screw 15, it will be opposite between gib block 17 and adjustment cushion block 16
Position is arranged to mutual embedded structure form.The compacting component includes bottom plate 6, and vibration component, bottom plate 6 are housed above bottom plate 6
Lower section both ends are respectively arranged with tamping block 7.The vibration component includes bearing block 11, and bearing block 11 is fixedly mounted on bottom plate 6, bearing
Shaft 3 is housed on seat 11, eccentric wheel 2 is housed in shaft 3, including motor 4,3 input terminal of shaft are connected with 4 output end of motor,
Including motor bracket 5, motor 4 is fixedly mounted on motor bracket 5, and motor bracket 5 is fixedly mounted on bottom plate 6, bearing block 11
Including first bearing seat and second bearing seat, the first bearing seat and second bearing seat are mounted on shield 10, shield
10 for protecting bearing block in order to avoid the sundries such as external stone tiny fragments of stone, coal, etc. enter, and damper 1 is optional using hydra-shock absorber and mechanical
Any one in damper, damper 1 is for being isolated vibration, to reduce the vibration for being transferred to installation vehicle frame as far as possible.Tamping block 7
Size is according to sleeper spacing and considers that safety margin is designed, and the present apparatus can realize two pieces of tamping blocks 7 simultaneously to rail two sides
Pillow between railway ballast carry out tamping operation.
When the present invention starts operation, the present apparatus passes through the first lifting cylinder 14 and whole along the internal and external frame nesting type structure
Body decline is until tamping block 7 touches railway ballast, and subsequent motor 4 starts to work and shaft 3 is driven to rotate, the eccentric wheel 2 in shaft 3
Vibration is generated during rotation, vibration is transferred to tamping block 7 by bearing block 11, bottom plate 6, and so that tamping block 7 is generated vibration, from
And realize the tamping operation to railway ballast, the first lifting cylinder 14, which is shunk, after tamping operation rises, and the present apparatus is along described inside and outside
Frame nesting type structure rises overally.
Inner frame 13 in the internal and external frame nesting type structure is gone up and down by the first lifting cylinder 14, inner frame 13
Lifting guiding is being realized by adjusting the mutual embedded structure between cushion block 16 and gib block 17 in lifting process, when adjustment cushion block
When generating abrasion because of phase mutual friction between 16 and gib block 17, adjustment cushion block 16 can be changed by turning adjusting screw 15
It sets, it is made to keep good chimerism again with gib block 17, the internal and external frame nested type lifting assembly is rigidly preferable, is leading
It can be adjusted in time after there is abrasion to element and continue tamping operation, substantially extend the working life of the present apparatus.
Embodiment two:
Railway ballast tamping unit between a kind of pillow, including lifting assembly and compacting component, lead between the lifting assembly and compacting component
It crosses damper 1 to be connected, the lifting assembly uses Open architecture.The Open architecture includes the second support plate, described
Second lifting cylinder 8 is housed in second support plate, is provided with guiding in second support plate close to the second lifting cylinder 8
Hole, the pilot hole are provided with lifting guide pillar 9.The compacting component includes bottom plate 6, and vibration component, bottom plate are housed above bottom plate 6
6 lower sections both ends are respectively arranged with tamping block 7.The vibration component includes bearing block 11, and bearing block 11 is fixedly mounted on bottom plate 6, axis
It holds and shaft 3 is housed on seat 11, eccentric wheel 2 is housed in shaft 3, including motor 4,3 input terminal of shaft are connected with 4 output end of motor
It connects, including motor bracket 5, motor 4 is fixedly mounted on motor bracket 5, and motor bracket 5 is fixedly mounted on bottom plate 6, bearing block
11 include first bearing seat and second bearing seat, and the first bearing seat and second bearing seat are mounted on shield 10, is protected
For protecting bearing block in order to avoid the sundries such as external stone tiny fragments of stone, coal, etc. enter, damper 1 may be selected to use hydra-shock absorber and machinery cover 10
Any one in formula damper, damper 1 is for being isolated vibration, to reduce the vibration for being transferred to installation vehicle frame as far as possible.Compacting
7 size of block is according to sleeper spacing and considers that safety margin is designed, and the present apparatus can realize two pieces of tamping blocks 7 simultaneously to rail two
Railway ballast carries out tamping operation between the pillow of side.
When the present invention starts operation, the present apparatus is by the second lifting cylinder 8 and along 9 entire lowering of lifting guide pillar until compacting
Block 7 touches railway ballast, and subsequent motor 4 starts to work and shaft 3 is driven to rotate, and the eccentric wheel 2 in shaft 3 produces during rotation
Raw vibration, vibration are transferred to tamping block 7 by bearing block 11, bottom plate 6, and tamping block 7 is made to generate vibration, to realize to railway ballast
Tamping operation, the second lifting cylinder 8, which is shunk, after tamping operation rises, and the present apparatus rises overally along lifting guide pillar 9.
Two embodiment is only preferred two technical solution, involved in each building block and connection relationship
It is not limited to both described above embodiments, the setting of each building block in two preferred embodiment and company
The relationship of connecing can carry out arbitrary permutation and combination and form complete technical solution.
Claims (10)
1. railway ballast tamping unit between a kind of pillow, including lifting assembly and compacting component, between the lifting assembly and compacting component
It is connected by damper (1), which is characterized in that the lifting assembly uses internal and external frame nesting type structure.
2. railway ballast tamping unit between pillow as described in claim 1, which is characterized in that the internal and external frame nesting type structure includes
First support plate is equipped with the first lifting cylinder (14) in first support plate, around the first lifting cylinder (14)
Inner frame (13) are housed in first support plate, are fixed with several gib blocks (17), inner frame on inner frame (13) outer wall
(13) outside is provided with outer framework (12), and several adjustment cushion blocks (16) are housed on outer framework (12) inner wall, and adjustment cushion block (16) is logical
It crosses adjusting screw (15) to be connected with outer framework (12), be threadedly coupled between adjustment cushion block (16) and adjusting screw (15), it will
Relative position between gib block (17) and adjustment cushion block (16) is arranged to mutual embedded structure form.
3. railway ballast tamping unit between a kind of pillow, including lifting assembly and compacting component, between the lifting assembly and compacting component
It is connected by damper (1), which is characterized in that the lifting assembly uses Open architecture.
4. railway ballast tamping unit between pillow as claimed in claim 3, which is characterized in that the Open architecture includes the second support
Plate is equipped with the second lifting cylinder (8) in second support plate, in second support plate close to the second lifting cylinder (8)
On be provided with pilot hole, the pilot hole is provided with lifting guide pillar (9).
5. railway ballast tamping unit between pillow as claimed in claim 1 or 3, which is characterized in that the compacting component includes bottom plate
(6), vibration component is housed, both ends are respectively arranged with tamping block (7) below bottom plate (6) above bottom plate (6).
6. railway ballast tamping unit between pillow as claimed in claim 5, which is characterized in that the vibration component includes bearing block
(11), bearing block (11) is fixedly mounted on bottom plate (6), and shaft (3) are housed on bearing block (11), equipped with bias in shaft (3)
It takes turns (2).
7. railway ballast tamping unit between pillow as claimed in claim 6, which is characterized in that including motor (4), shaft (3) input terminal
It is connected with motor (4) output end.
8. railway ballast tamping unit between pillow as claimed in claim 7, which is characterized in that including motor bracket (5), motor (4) is solid
On motor bracket (5), motor bracket (5) is fixedly mounted on bottom plate (6) for Dingan County.
9. railway ballast tamping unit between pillow as claimed in claim 6, which is characterized in that bearing block (11) include first bearing seat and
Second bearing seat, the first bearing seat and second bearing seat are mounted on shield (10).
10. railway ballast tamping unit between pillow as claimed in claim 1 or 3, which is characterized in that damper (1) is subtracted using fluid pressure type
Shake device or mechanical damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981074.6A CN109098051A (en) | 2018-08-27 | 2018-08-27 | Railway ballast tamping unit between a kind of pillow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810981074.6A CN109098051A (en) | 2018-08-27 | 2018-08-27 | Railway ballast tamping unit between a kind of pillow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109098051A true CN109098051A (en) | 2018-12-28 |
Family
ID=64851305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810981074.6A Withdrawn CN109098051A (en) | 2018-08-27 | 2018-08-27 | Railway ballast tamping unit between a kind of pillow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109098051A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863067A (en) * | 2021-10-28 | 2021-12-31 | 郑州铁路职业技术学院 | Railway ballast backfilling equipment and use method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102236A (en) * | 1985-04-01 | 1986-08-13 | 铁道部昆明铁路局 | A kind of tamper between sleepers |
| JP2005307557A (en) * | 2004-04-21 | 2005-11-04 | Izumi Products Co | Apparatus for compacting track by vibration, and track compacting method |
| CN103866983A (en) * | 2014-03-27 | 2014-06-18 | 湖南五新重型装备有限公司 | Lengthened type concrete spraying vehicle manipulator |
| CN203716037U (en) * | 2013-12-09 | 2014-07-16 | 长安大学 | Vibro-rammer accessory for road roller |
| CN205300937U (en) * | 2015-12-24 | 2016-06-08 | 山东科大微机应用研究所有限公司 | Cylinder counter -force type lifts type vehicle axle and remakes and move frame construction of compound checkout stand |
| CN206438497U (en) * | 2016-12-27 | 2017-08-25 | 山东天路重工科技有限公司 | Hydraulic vibrating rammer |
| CN107130479A (en) * | 2017-06-24 | 2017-09-05 | 淄博洁翔机电科技开发有限公司 | Small-sized automatic hydraulic railway track tamper vehicle |
| CN209227306U (en) * | 2018-08-27 | 2019-08-09 | 中国铁建高新装备股份有限公司 | Railway ballast tamping unit between a kind of pillow |
-
2018
- 2018-08-27 CN CN201810981074.6A patent/CN109098051A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102236A (en) * | 1985-04-01 | 1986-08-13 | 铁道部昆明铁路局 | A kind of tamper between sleepers |
| JP2005307557A (en) * | 2004-04-21 | 2005-11-04 | Izumi Products Co | Apparatus for compacting track by vibration, and track compacting method |
| CN203716037U (en) * | 2013-12-09 | 2014-07-16 | 长安大学 | Vibro-rammer accessory for road roller |
| CN103866983A (en) * | 2014-03-27 | 2014-06-18 | 湖南五新重型装备有限公司 | Lengthened type concrete spraying vehicle manipulator |
| CN205300937U (en) * | 2015-12-24 | 2016-06-08 | 山东科大微机应用研究所有限公司 | Cylinder counter -force type lifts type vehicle axle and remakes and move frame construction of compound checkout stand |
| CN206438497U (en) * | 2016-12-27 | 2017-08-25 | 山东天路重工科技有限公司 | Hydraulic vibrating rammer |
| CN107130479A (en) * | 2017-06-24 | 2017-09-05 | 淄博洁翔机电科技开发有限公司 | Small-sized automatic hydraulic railway track tamper vehicle |
| CN209227306U (en) * | 2018-08-27 | 2019-08-09 | 中国铁建高新装备股份有限公司 | Railway ballast tamping unit between a kind of pillow |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863067A (en) * | 2021-10-28 | 2021-12-31 | 郑州铁路职业技术学院 | Railway ballast backfilling equipment and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107130479B (en) | Small automatic hydraulic railway line tamping vehicle | |
| RU2143512C1 (en) | Method for ballasting and stabilization of rail track | |
| CN108978369A (en) | A kind of operating trolley for the backfill of pick nest, railway ballast compacting | |
| EA035735B1 (en) | Method for correcting the position of a track by a tamping machine | |
| CN107670768A (en) | A kind of ore extraction transporter | |
| EA009930B1 (en) | Machine for carrying out a track gauge correction | |
| CN107148501A (en) | Ballast bed tamping track machine for tamping track | |
| CN209227306U (en) | Railway ballast tamping unit between a kind of pillow | |
| CN108360342A (en) | A kind of curb molding lying device | |
| CA1039113A (en) | Track surfacing apparatus | |
| CN104153325A (en) | Large-thickness concrete automatic pouring machine for channel slope mesh with steel bars | |
| CN109098051A (en) | Railway ballast tamping unit between a kind of pillow | |
| CN108660875A (en) | A kind of eight pick of railway track makes curing means firm by ramming | |
| SE505670C2 (en) | Continuous (non-stop) track construction machine | |
| CN1066505C (en) | A machine installation for treating the ballast bed of a track | |
| CN201151860Y (en) | Concrete mobile vehicle for double block type ballastless track construction | |
| CN104884708A (en) | Method for underfilling a track by means of asynchronously moved tamping units | |
| JP5406586B2 (en) | Orbital tamping device | |
| CN101864707B (en) | Positive wire double-pillow tamping device | |
| CN102644221A (en) | Track tamping wagon | |
| CN210657820U (en) | Dolly is backfilled to switch district pick nest | |
| CN205908300U (en) | Ditch cable duct movable trolley | |
| CN207958935U (en) | A kind of curb molding lying device | |
| CN209584745U (en) | Railway ballast maintenance work device between a kind of pillow | |
| CN206553840U (en) | A kind of railroad track stabilising arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181228 |