CN106049202A - Narrow scraper chain stone selection and mud removal device - Google Patents
Narrow scraper chain stone selection and mud removal device Download PDFInfo
- Publication number
- CN106049202A CN106049202A CN201610622499.9A CN201610622499A CN106049202A CN 106049202 A CN106049202 A CN 106049202A CN 201610622499 A CN201610622499 A CN 201610622499A CN 106049202 A CN106049202 A CN 106049202A
- Authority
- CN
- China
- Prior art keywords
- guide arm
- cantilevered corner
- corner beam
- groove
- narrow
- 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.)
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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
- E01B27/04—Removing the ballast; Machines therefor, whether or not additionally adapted for taking-up ballast
-
- 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
- E01B27/06—Renewing or cleaning the ballast in situ, with or without concurrent work on the track
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a narrow scraper chain stone selection and mud removal device which is used for a narrow space rail. The narrow scraper chain stone selection and mud removal device comprises a bottom beam, a first angle beam, a second angle beam, an ascending guide arm and a descending guide arm, wherein the first angle beam and the second angle beam are connected to the two ends of the bottom beam, and the ascending guide arm and the descending guide arm are connected with the first angle beam and the second angle beam respectively; the bottom beam, the first angle beam, the second angle beam, the ascending guide arm and the descending guide arm form a structure shaped like a Chinese character 'men'. The ascending guide arm is internally provided with an ascending guide arm groove, the descending guide arm is internally provided with a descending guide arm groove, the bottom beam is internally provided with a bottom beam guide groove, the angle beams are internally provided with angle beam guide grooves, and the ascending guide arm groove, the descending guide arm groove, the bottom beam guide groove and the angle beam guide grooves are internally provided with a mud removal chain which operates circularly along a regular square structure, and the mud removal chain operates circularly and transports crushed stone ballast in the narrow space rail to a vibration sieve through the bottom beam and the ascending guide arm. By means of the narrow scraper chain stone selection and mud removal device, collection of the crushed stone ballast in the narrow space rail such as a viaduct railway or a tunnel railway can be achieved.
Description
Technical field
The present invention, about a kind of machinery clearing up broken stone metaling, particularly relates to a kind of collection overpass railway or tunnel railway
Stone desludging device is selected etc. the narrow formula rake chain of the broken stone metaling of narrow space orbit.
Background technology
At present, the development built along with transportation, railway trip is more and more universal, according to different geology bars
Part, railroad track can be built in the special space such as overpass or tunnel.As time goes on, mud between ballast aggregate, soil are increasingly
Many, worse and worse, there is potential safety hazard in the damping property of ballast aggregate to train operation, needs to remove in time.Overpass or tunnel at present
The removing of the broken stone metaling of the narrow space orbit such as road, is substantially manual work, and not only labor intensity is big, and dangerous,
It is not specifically designed to the device of the broken stone metaling of the narrow space railroad track collecting overpass railway and tunnel railway.
Summary of the invention
In view of this, offer one is provided and can collect the narrow sky such as overpass railway or tunnel railway
Between track broken stone metaling narrow formula rake chain select stone desludging device.
For reaching above-mentioned purpose, the present invention provides a kind of narrow formula rake chain to select stone desludging device, and for narrow space orbit, this removes
Mud device include bottom girder, the first cantilevered corner beam being connected to these bottom girder two ends and the second cantilevered corner beam and respectively with this first cantilevered corner beam and second
The rising guide arm of cantilevered corner beam connection and decline guide arm, this bottom girder, the first cantilevered corner beam, the second cantilevered corner beam and rising guide arm and decline guide arm composition
" Jiong " character form structure, is wherein provided with rising guide arm groove inside this rising guide arm, be provided with decline guide arm groove inside this decline guide arm, should
It is provided with bottom girder guide groove in bottom girder, in cantilevered corner beam, is provided with cantilevered corner beam guide groove, this rising guide arm groove, decline guide arm groove and bottom girder guide groove and cantilevered corner beam
Be provided with in guide groove along should " Jiong " character form structure cycle operation desilt chain, this desilts chain cycle operation broken by narrow space orbit
Stone ballast aggregate transports to vibrosieve by bottom girder, rising guide arm.
Described rising guide arm is positioned at the side of this " Jiong " character form structure, logical between described rising guide arm and described first cantilevered corner beam
Cross angle roller to connect；Described decline guide arm is positioned at the opposite side of this " Jiong " character form structure, and this decline guide arm is passed through with the second cantilevered corner beam
Another group angle roller connects.
Described angle roller includes angle roller shaft, is sheathed on this angle roller bearing outside roller shaft of angle, this rising guide arm with
First cantilevered corner beam junction is equipped with axis hole, by angle roller shaft passing angle roller bearing and rising the axle of guide arm and the first cantilevered corner beam
Hole will rise guide arm and be connected with the first cantilevered corner beam.
Described rising guide arm is away from one end lateral bend in " Jiong " character form structure of described first cantilevered corner beam.
Forming described decline guide arm groove between the outer wall of described decline guide arm both sides, it is wear-resisting that inside outer wall is provided with multiple inside groove
Plate, described decline guide arm trench bottom is provided with Wear-resisting bottom plate.
The two ends of described bottom girder connect described first cantilevered corner beam and the second cantilevered corner beam by dovetail axle respectively.
It is provided with dovetail pad between described bottom girder and the first cantilevered corner beam and the second cantilevered corner beam.
The described chain that desilts includes transition carrier bar and the multiple narrow formula rake chain being installed on this transition carrier bar.
Described narrow formula rake chain includes being parallel to each other and a side connects the first grip block and the second grip block, described narrow
Formula rake chain is by being fixedly installed in rebound by being held on described rebound between the first grip block and the second grip block, and this is the years old
One grip block is positioned at outside, and the second grip block is positioned at inner side, and the side of this first grip block and the connection of the second grip block is to inner side
It is extended with pick.
Described pick includes multiple perforation, is provided with pick in each perforation.
The narrow formula rake chain of the present invention selects stone desludging device, may be implemented in the narrow space railway such as overpass railway or tunnel railway
The collection of the broken stone metaling of track.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention narrow formula rake chain selects stone desludging device；
Fig. 2 is the structural representation of the rising guide arm in the left view of Fig. 1, the i.e. present invention, it is illustrated that desilts chain and leads in rising
State in arm groove；
The front view of rising guide arm, top view, upward view, left view and the right side that Fig. 3 a-Fig. 3 e is respectively in the present invention regard
Figure；
The front view of decline guide arm, top view, left view and the right view that Fig. 4 a-Fig. 3 d is respectively in the present invention；
The front view of bottom girder, top view and the left view that Fig. 5 a-Fig. 5 c is respectively in the present invention；
Fig. 6 a is the structural representation of bottom girder in the present invention and cantilevered corner beam assembling, i.e. in Fig. 1, bottom girder and cantilevered corner beam part faces upward
View；
Fig. 6 b is bottom girder and the close-up schematic view of cantilevered corner beam junction in Fig. 6 a；
The front view of the dovetail axle that Fig. 7 a and Fig. 7 b is respectively in the present invention and top view；
Fig. 8 is the structural representation of the dovetail pad in the present invention；
The front view of the narrow formula rake chain that Fig. 9 a and Fig. 9 b is respectively in the present invention and right view.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Generally implement with the present invention illustrated described in accompanying drawing herein
The assembly of example can be arranged with various different configurations and design.Therefore, reality to the present invention provided in the accompanying drawings below
The detailed description executing example is not intended to limit the scope of claimed invention, but is merely representative of the selected enforcement of the present invention
Example.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of protection of the invention.
Embodiments of the invention are described below in detail, and the example of embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
As it is shown in figure 1, the narrow formula rake chain of the present invention selects stone desludging device to include bottom girder 1, be connected to the first of bottom girder 1 two ends
Cantilevered corner beam 2 and the second cantilevered corner beam 3 and the rising guide arm 4 that is connected with the first cantilevered corner beam 2 and the second cantilevered corner beam 3 respectively with decline guide arm 5, this bottom girder
1, first cantilevered corner beam the 2, second cantilevered corner beam 3 and rising guide arm 4 form " Jiong " character form structure, wherein in this rising guide arm 4 with declining guide arm 5
Portion is provided with rising guide arm groove 40, and this decline guide arm 5 is internal is provided with decline guide arm groove 50, is provided with bottom girder guide groove 10, angle in this bottom girder 1
It is provided with cantilevered corner beam guide groove in beam, is provided with along being somebody's turn to do in this rising guide arm groove 40, decline guide arm groove 50 and bottom girder guide groove 10 and cantilevered corner beam guide groove
" Jiong " character form structure cycle operation desilt chain 6, this desilts chain 6 cycle operation and is removed the broken stone metaling of narrow space orbit,
This desilts chain 6 by drive wheel.
Shown in Fig. 1, Fig. 2 and Fig. 3 a-Fig. 3 e, the rising guide arm 4 in the present invention is positioned at the side of " Jiong " character form structure,
Between the outer wall of these rising guide arm 4 both sides formed rise guide arm groove 40, this desilt chain 6 operate in this rising guide arm groove 40 (as
Shown in Fig. 2).Being connected by angle roller 7 between this rising guide arm 4 with the first cantilevered corner beam 2, this angle roller 7 includes angle roller shaft, set
Being located at the angle roller bearing outside the roller shaft of angle, this rising guide arm 4 and the first cantilevered corner beam 2 junction are equipped with axis hole, by by angle
Roller shaft through angle roller bearing and rise guide arm 4 with the axis hole of the first cantilevered corner beam 2, rising guide arm 4 is connected with the first cantilevered corner beam 2 (as
Shown in Fig. 1 Yu Fig. 6 a, Fig. 6 a does not shows rising guide arm), angle roller bearing is positioned at the inside of the first cantilevered corner beam 2.Rising in the present invention
Guide arm 4 can inside lateral bend away from one end of cantilevered corner beam, in order to be suitable for the narrow space orbit such as overpass railway or tunnel railway.
Shown in Fig. 1 and Fig. 4 a-Fig. 4 d, the decline guide arm 5 in the present invention is positioned at the opposite side of " Jiong " character form structure, should
One end that decline guide arm 5 is connected with the second cantilevered corner beam 3 is provided with upper junction plate 51 and lower connecting plate 52, connects the second cantilevered corner beam 3 respectively
Upper lower ear plate, and upper junction plate 51 is equipped with axis hole with lower connecting plate 52, and this decline guide arm 5 and the second cantilevered corner beam 3 are also by angle
Roller connects, and connected mode is as it has been described above, repeat no more.Formed between the outer wall of these decline guide arm 5 both sides and decline guide arm groove 50,
Inside outer wall is provided with multiple inside groove wearing plate, declines guide arm trench bottom and is provided with Wear-resisting bottom plate, can make to desilt chain and decline guide arm groove
Wearability is increased during interior operating.
The knee rising guide arm in the present invention also can be provided with angle roller, declines and also can be provided with angle roller in guide arm, due to
Equipped with rolling bearing in the roller of angle, rub as rolling friction, desilt chain and be unlikely to when motion and object produces sliding friction, subtract
The little resistance of motion, moves smooth and easy, adds the service life of object.And by angle roller, can make to desilt chain and can change fortune
Turn direction.
As shown in Fig. 5 a-Fig. 5 c, the bottom girder 1 in the present invention includes that the bottom girder extended along its length protects plate 11, bottom girder
Upper bent plate 12, bottom girder riser 13 and at the end plate 14 at bottom girder two ends and the bottom girder otic placode 15 between two end plates, its
In this bottom girder protect and between bent plate 12 and bottom girder riser 13, form bottom girder guide groove 10 on plate 11, bottom girder, desilt chain 6 and lead at this bottom girder
(as shown in Figure 6 a) is run in groove 10.The end plate of the end plate 14 of the bottom girder 1 in the present invention and adjacent cantilevered corner beam docks, bottom girder 1 with
Can be connected by dovetail axle 8 between cantilevered corner beam.As shown in Fig. 7 a Yu 7b, the dovetail axle 8 in the present invention includes the axis body 80 at two ends, should
Axis body 80 end has extended internally screwed hole 81, and the bottom girder otic placode 15 of the bottom girder 1 in the present invention is provided with axis hole, docks with bottom girder 1
Cantilevered corner beam be provided with cantilevered corner beam otic placode 20 (or 30), and cantilevered corner beam otic placode 20 is equipped with axis hole on bottom girder otic placode 15, the two of this dovetail axle
End axis body 80 inserts bottom girder otic placode 15 and (as shown in Fig. 6 a and Fig. 6 b) in the axis hole of adjacent cantilevered corner beam otic placode 20, this axis body respectively
It is provided with the fixing lid 82 of band through hole outside 80, there is externally threaded bolt 83 through the fixing through hole covering 82 and axis body 80 by one
Interior screwed hole 81 screws, and makes axis body 80 tighten together with fixing lid 82, prevents dovetail axle at bottom girder otic placode and cantilevered corner beam otic placode
Middle abjection.Wherein it is provided with bottom girder wearing plate in bottom girder guide groove 10, adds the service life of bottom girder.It also is provided with in cantilevered corner beam and bottom girder
The cantilevered corner beam guide groove that guide groove communicates.Wherein also can be provided with at least one dovetail pad between bottom girder and adjacent cantilevered corner beam, in order to increase
Add deduct little " Jiong " the character form structure bottom girder home record length with cantilevered corner beam part, it is simple to works as on narrow space orbit.As shown in Figure 8
Structural representation for dovetail pad.
As it is shown in figure 1, in the present invention desilt chain 6 include transition carrier bar 60 and be installed on transition carrier bar 60 multiple narrow
Formula rake chain 61.As shown in Fig. 9 a and Fig. 9 b, the respectively front view of the rake of the narrow formula in present invention chain 61 shows with the structure of right view
It is intended to.This narrow formula rake chain 61 includes being parallel to each other and the first grip block 610 and the second grip block 611 of side connection, two
Being equipped with two corresponding clamping holes on grip block, this first grip block 610 is positioned at outside, and the second grip block 611 is positioned at inner side,
The side that this first grip block 610 is connected with the second grip block 611 is extended with cutting bit assembly 612, this cutting bit assembly 612 to inner side
Including multiple perforations 613, being provided with pick (not shown) in each perforation 613, the perforation in the embodiment of the present invention is five,
This second grip block 611 is extended with baffle plate 614 to cutting bit assembly 612 end.The present invention utilizes the first clamping of narrow formula rake chain
Plate 610 and the second grip block 611 are clamped on transition carrier bar 60, and are fixed on by narrow formula rake chain 61 through clamping hole by bearing pin
On transition carrier bar 60.
Narrow formula rake chain, when actually used, is installed on transition carrier bar, by bottom girder with cantilevered corner beam by dovetail axle by the present invention
Link together with dovetail pad, and rising guide arm be separately mounted on cantilevered corner beam with declining guide arm, form " Jiong " character form structure,
To desilt in the guide groove that chain is arranged at " Jiong " font, be i.e. set in turn in bottom girder guide groove, the first cantilevered corner beam guide groove, rise guide arm groove,
Decline guide arm groove and the second cantilevered corner beam guide groove.
In the course of the work, by adjusting angle and the stroke of oil cylinder, rising guide arm and decline guide arm are adjusted to properly
Position, reaches the narrow space orbit space requirement such as overpass railway or tunnel railway, bottom girder is arranged at overpass railway or tunnel
Below the narrow space orbits such as road railway, then harrow chain by the narrow formula of chain wheel drive, by cutting bit assembly and the baffle plate of narrow formula rake chain
By on ballast rake to bottom girder, the first cantilevered corner beam, then transporting to rise in guide arm by rubble by narrow formula rake chain, last rubble arrives position
In rising in guide arm and the vibrosieve that declines between guide arm opening, narrow formula rake chain remains in operation, turn over decline guide arm, second jiao
Beam and bottom girder, repeat above-mentioned action, it is achieved the collection of rubble desilts function.
The present invention uses narrow formula and rises guide arm, narrow formula decline guide arm, narrow formula cantilevered corner beam and narrow formula bottom girder.
The length of bottom girder and cantilevered corner beam can be increased or decreased in the present invention by dovetail pad is increased or decreased, solve difference
The collection of the broken stone metaling of the narrow space orbit of width, it is achieved at narrow space railroad tracks such as overpass railway or tunnel railways
The collection of broken stone metaling.Pouring orifice 62 in the present invention is located at the outer exterior wall rising guide arm near cantilevered corner beam, and pouring orifice 62 is located at
Lower section, and outside pouring orifice 62, increase oil nozzle protection device, it is entirely avoided grease nipple was up in the past, oil nozzle and sebific duct quilt
Situation about colliding with and rupture, it is ensured that oiling unobstructed, also ensure that angle roller is constantly in the state lubricated.
Bottom girder, cantilevered corner beam, rising guide arm and decline guide arm in the present invention are narrow formula structure, are suitable for narrow space orbit.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention.
Claims (10)
1. narrow formula rake chain select a stone desludging device, for narrow space orbit, it is characterised in that this desludging device include bottom girder,
It is connected to first cantilevered corner beam at these bottom girder two ends and the second cantilevered corner beam and the rising being connected respectively with this first cantilevered corner beam and the second cantilevered corner beam
Guide arm and decline guide arm, this bottom girder, the first cantilevered corner beam, the second cantilevered corner beam and rising guide arm and decline guide arm composition " Jiong " character form structure,
Wherein it is provided with rising guide arm groove inside this rising guide arm, is provided with decline guide arm groove inside this decline guide arm, in this bottom girder, is provided with the end
Beam guide groove, is provided with cantilevered corner beam guide groove in cantilevered corner beam, this rising guide arm groove, decline guide arm groove and bottom girder guide groove are provided with edge in cantilevered corner beam guide groove
Should " mouth " character form structure cycle operation desilt chain, this desilts chain by drive wheel cycle operation broken by narrow space orbit
Stone ballast aggregate is transported by each groove.
Narrow formula the most as claimed in claim 1 rake chain selects stone desludging device, it is characterised in that described rising guide arm is positioned at this " mouth "
The side of character form structure, is connected by angle roller between described rising guide arm with described first cantilevered corner beam；Described decline guide arm is positioned at
Being somebody's turn to do the opposite side of " mouth " character form structure, this decline guide arm is connected by another group angle roller with the second cantilevered corner beam.
Narrow formula the most as claimed in claim 2 rake chain selects stone desludging device, it is characterised in that described angle roller includes angle roller
Axle, being sheathed on this angle roller bearing outside roller shaft of angle, this rising guide arm and the first cantilevered corner beam junction are equipped with axis hole, pass through
With the axis hole of the first cantilevered corner beam, angle roller shaft will be risen guide arm through angle roller bearing and rising guide arm be connected with the first cantilevered corner beam.
Narrow formula the most as claimed in claim 2 rake chain selects stone desludging device, it is characterised in that described rising guide arm is away from described the
One end of one cantilevered corner beam is lateral bend in " Jiong " character form structure.
Narrow formula the most as claimed in claim 2 rake chain selects stone desludging device, it is characterised in that the outer wall of described decline guide arm both sides
Between form described decline guide arm groove, inside outer wall is provided with multiple inside groove wearing plate, and described decline guide arm trench bottom is provided with wear-resisting
Base plate.
Narrow formula the most as claimed in claim 1 rake chain selects stone desludging device, it is characterised in that the two ends of described bottom girder are passed through respectively
Dovetail axle connects described first cantilevered corner beam and the second cantilevered corner beam.
Narrow formula the most as claimed in claim 6 rake chain selects stone desludging device, it is characterised in that described bottom girder and the first cantilevered corner beam and the
It is provided with dovetail pad between two cantilevered corner beams, by increasing dovetail pad, Jiong can be increased " span inside character form structure, to adapt to
The ash pillow of different length.
Narrow formula the most as claimed in claim 1 rake chain selects stone desludging device, it is characterised in that described in desilt chain and include transition carrier bar
And the multiple narrow formula rake chain being installed on this transition carrier bar；
Described narrow formula rake chain includes being parallel to each other and a side connects the first grip block and the second grip block, described narrow formula rake
Chain by being fixedly installed in rebound by being held on described rebound between the first grip block and the second grip block, this first folder
Holding plate and be positioned at outside, the second grip block is positioned at inner side, and the side of this first grip block and the connection of the second grip block extends to inner side
There is cutting bit assembly.
Narrow formula the most as claimed in claim 8 rake chain selects stone desludging device, it is characterised in that described cutting bit assembly includes multiple tooth
Hole, is provided with pick in each perforation.
Narrow formula the most as claimed in claim 1 rake chain selects stone desludging device, it is characterised in that 62 are located at described rising guide arm leans on
The outer exterior wall of nearly first cantilevered corner beam is provided with pouring orifice, is provided with oil nozzle protection device outside this pouring orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610622499.9A CN106049202A (en) | 2016-08-01 | 2016-08-01 | Narrow scraper chain stone selection and mud removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610622499.9A CN106049202A (en) | 2016-08-01 | 2016-08-01 | Narrow scraper chain stone selection and mud removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106049202A true CN106049202A (en) | 2016-10-26 |
Family
ID=57197173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610622499.9A Pending CN106049202A (en) | 2016-08-01 | 2016-08-01 | Narrow scraper chain stone selection and mud removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106049202A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2820948Y (en) * | 2005-07-28 | 2006-09-27 | 襄樊金鹰轨道车辆有限责任公司 | Railway switch ballast digging device |
| CN2846474Y (en) * | 2005-09-20 | 2006-12-13 | 昆明中铁大型养路机械集团有限公司 | Vertical digging device |
| RU2447221C1 (en) * | 2010-10-20 | 2012-04-10 | Открытое акционерное общество Научно-исследовательский и конструкторско-технологический институт подвижного состава (ОАО "ВНИКТИ") | Railway ballast cleaning machine |
| CN105442396A (en) * | 2014-08-22 | 2016-03-30 | 昆明中铁大型养路机械集团有限公司 | Excavation device suitable for operation on narrow operation face of railway tunnel |
| CN205368908U (en) * | 2015-12-17 | 2016-07-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Screen scarifier digger chain |
| CN206173754U (en) * | 2016-08-01 | 2017-05-17 | 包头市北工机械有限公司 | Narrow formula harrow chain selects stone silt removing apparatus |
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2016
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|---|---|---|---|---|
| CN2820948Y (en) * | 2005-07-28 | 2006-09-27 | 襄樊金鹰轨道车辆有限责任公司 | Railway switch ballast digging device |
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| RU2447221C1 (en) * | 2010-10-20 | 2012-04-10 | Открытое акционерное общество Научно-исследовательский и конструкторско-технологический институт подвижного состава (ОАО "ВНИКТИ") | Railway ballast cleaning machine |
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| CN205368908U (en) * | 2015-12-17 | 2016-07-06 | 南车戚墅堰机车车辆工艺研究所有限公司 | Screen scarifier digger chain |
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Application publication date: 20161026 |
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