CN208563014U - Rail fastener recyclable device - Google Patents
Rail fastener recyclable device Download PDFInfo
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- CN208563014U CN208563014U CN201820766802.7U CN201820766802U CN208563014U CN 208563014 U CN208563014 U CN 208563014U CN 201820766802 U CN201820766802 U CN 201820766802U CN 208563014 U CN208563014 U CN 208563014U
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- conveyer
- feed bin
- roller
- traveling
- rail
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Abstract
The utility model relates to a kind of railway line maintenance fields, provide a kind of rail fastener recyclable device, including base support, and base support is fixed on railway conventional flat-panel vehicle, and base support upper surface is provided with traveling slot；Generating set is fixed in base support one end；Discharge conveyor is installed between generating set and traveling slot；Traveling slot two sides are equipped with rail conveying guide groove；Base support top is installed by traveling trolley；Traveling trolley end is equipped with hydraulic station, emergency is returned the vehicle to the garage and knock off system, magnetic capture conveyer；Traveling trolley is equipped with feed bin and floor conveyer.The utility model uses the feed bin with floor conveyor construction, the automatic handling material of energy in operation process, in the automatic material casting of discharge process energy, woth no need to human assistance；Feed bin volume is big, can carry the fastener material that longer lines remove；Rail conveying guide groove can be such that the rail welded on vehicle passes through, and be able to cooperate weldering rail and switch tracks integrated construction.
Description
Technical field
The utility model relates to a kind of railway line maintenance field more particularly to a kind of rail fastener recyclable devices.
Background technique
Rail on rail track is needed replacing after using certain time limit, and needing while replacing rail will be old
The material recycles such as fastener, nut, washer.Every kilometer of about 4 cubic metres of material for needing to recycle, weight about 7000kg.And at this stage
Material recycle mainly uses manual type, first the materials such as the fastener under dismantling is attached in woven bag by on-site personnel, often
Woven bag is thrown on rail flat car after the completion of the operation that switches tracks by on-site personnel by a woven bag weight of material about 30kg,
Rail flat car height about 1.5m or so.Operating personnel tosses woven bag not only large labor intensity to flatcar, but also in the mistake tossed
Cheng Zhonghui is not because material spilling or woven bag are thrown away to flatcar and cause personal injury.In removal process, a small amount of material is because of operation
Personnel's carelessness is left on the line, and the material of these legacy fields may influence the traffic safety of train on high-speed railway.
It is promoting weldering rail at this stage to switch tracks integrated construction, by 500m rail welding at a nothing on long rail transport vehicle
Then gapless line after the completion of welding is unloaded to track and completes the operation that switches tracks by the gapless line of seam.And fastener recycling operation needs
Unload rail operation and the operation that switches tracks among complete, due to the activity duration anxiety, it may appear that the material recycles such as fastener are incomplete, and hold
Personal injury accident easily occurs.
In view of the foregoing, the device and method that many technical staff also can substitute manual recovery material in exploitation,
Many new patents and utility model patent are disclosed, such as utility model patent " a kind of gapless line switch tracks fastener collection device "
(201621436170.5) it is to be put material into recycling iron bucket by personnel, is then sent on flatcar, the disadvantages are as follows:
The device needs operating personnel to follow recyclable device that material is put into iron bucket, and labor intensity is still very big, and still has material something lost
It stays, the amount of storage of flatcar is limited, and operation is apart from short；There is still a need for human assistances for discharge process；Weldering rail is not able to cooperate to switch tracks integration
Construction needs individually to carry out fastener recycling operation.Utility model patent " a kind of rail fastener recovery vehicle and the button that switches tracks
Part recycles operational method " (200910225713.7) be a kind of rewinding integrated operations that switch tracks equipment, the equipment is same what is switched tracks
When recovered material later fallen among fixed feed bin using permanent magnetism mode recovered material, disadvantage is that: 1) switch tracks
Rail clip is all removed when operation, and the unlocked state of rail processing is easy to appear derailing and tumbles, and there are security risks；2)
Material is sent to feed bin and is deposited in same point by conveyer, needs human assistance handling material；It 3) is to guarantee its feed bin of function that switches tracks
Volume is small, and apart from short, and on the reserved vehicle of its equipment, rail can not achieve weldering rail and be switched tracks institutional operation by space for operation；
(4) discharge process will appear accumulation, need human assistance discharging.
In conclusion currently need a kind of high degree of automation, without human assistance, feed bin volume is big and can cooperate weldering rail
Switch tracks the rail fastening recyclable device and operational method of integrated construction operation.
Summary of the invention
Place in order to overcome the above-mentioned deficiencies of the prior art, the utility model provide a kind of high degree of automation, without people
Work auxiliary, feed bin volume are big and weldering rail can be cooperated to switch tracks the rail fastening recyclable device of integrated construction operation.
To achieve the above objectives, the present invention adopts the following technical solutions: rail fastener recyclable device, including bottom
Seat support, base support are fixed on railway conventional flat-panel vehicle using bolt mode, and base support upper surface is provided with traveling
Slot；Generating set is fixed in base support one end；Discharge conveyor is installed between generating set and traveling slot；Traveling slot two
Side is equipped with rail conveying guide groove；Traveling trolley is installed on base support top, and locking machine is equipped between traveling trolley and base support
Structure, base support are equipped with backstop, limit the endpoint of the forward and backward walking of traveling trolley；Traveling trolley end is equipped with hydraulic station, answers
Suddenly return the vehicle to the garage and knock off system, magnetic capture conveyer；Traveling trolley is equipped with feed bin and floor conveyer；Control plane is arranged in feed bin top
Plate, feed bin close to one end of generating set be provided with control cabinet and control transceiver, the control cabinet respectively with control transceiver
It is connected with control panel.
In the above-mentioned technical solutions, the locking mechanism includes the pin hole being set on traveling trolley and base support,
And the bolt to match is fixed traveling trolley with base support by bolt when needing to lock traveling trolley.
In the above-mentioned technical solutions, when hydraulic station can not work, the emergency system of returning the vehicle to the garage and knock off can control magnetism in 15 minutes
Collecting conveyor return simultaneously stops working.
In the above-mentioned technical solutions, at least there are two running shafts and four travelling wheels, running shaft to pass through for the traveling trolley
The driving of traveling hydraulic motor, travelling wheel are run in the traveling slot.
In the above-mentioned technical solutions, the feed bin is bolted on traveling trolley, and the floor conveyer is integrated in feed bin
One, the floor as feed bin use, and feed bin includes skeleton and mask, are equipped with wearing plate inside mask, feed bin is close to generator
One end of group is provided with door, door switch oil cylinder is provided on door, the unlatching of door can be driven by switching oil cylinder by door
And closing.
In the above-mentioned technical solutions, the floor conveyer uses horizontally disposed chain structure, including conveyer frame,
The welding of the skeleton of conveyer frame and feed bin, one end of conveyer frame are equipped with drive shaft, and there are two chains for installation in drive shaft
Wheel, the end of drive shaft are equipped with speed reducer and conveyer-belt hydraulic motor, the other end of conveyer frame be equipped with driven shaft and
Chain stretching device is equipped with sprocket wheel on driven shaft, two chains, two chains is equipped between driving shaft sprocket wheel and driven shaft sprocket wheel
Item is connected using connecting rod, and riveting has conveyer belt on connecting rod.
In the above-mentioned technical solutions, the discharge conveyor is arranged horizontally belt conveyor, including discharge conveyor machine
Frame and discharging conveyer belt, discharge conveyor rack one end are provided with activity-driven roller, and activity-driven roller two sides, which are provided with, opens
Locking structure, the discharge conveyor rack other end are provided with fixed driving roller, on activity-driven roller and fixed driving roller
Hydraulic motor is installed, discharging conveyer belt is installed between activity-driven roller and fixed driving roller, discharging conveyer belt can be two-way
Operation, traffic direction is vertical with the traffic direction of railway conventional flat-panel vehicle, and along top, discharging conveyer belt is disposed with trough idler, edge
Lower section discharging conveyer belt is disposed with flat idler and the first directive wheel.
In the above-mentioned technical solutions, the magnetic capture conveyer is the corrugated sidewall structure conveyer being in tilted layout, packet
Magnetic capture conveyer frame is included, the lower one end of magnetic capture conveyer frame is equipped with magnetic roller, magnetic capture conveying
The higher one end of machine rack is equipped with driving roller, and driving roller both ends are provided with tensioning apparatus, and driving roller end is equipped with
Speed reducer and hydraulic motor, magnetic roller and driving roller convey band connection, magnetic capture conveyer frame by corrugated sidewall
Upper and lower part is provided with the first carrying roller and the second directive wheel.
In the above-mentioned technical solutions, magnetic capture conveyer frame top midpoint is provided with lift cylinder, mentions
The cylinder body of oil-lifting jar is connect with the traveling trolley, can change the inclination of magnetic capture conveyer by the variation of oil cylinder stroke
Angle.
In the above-mentioned technical solutions, the magnetic roller is electromagnetism roller.
In the above-mentioned technical solutions, the rail conveying guide groove is made of the guide groove body of at least two box structures, guide groove
In on the base support of the feed bin two sides, guide groove body is connect by the way of insulation body mounted in pairs with the base support,
Guide groove body lower part is provided with second roller, and side is equipped with third directive wheel.
In the above-mentioned technical solutions, the control transceiver is wireless remote control transceiver, and control transceiver is configured with corresponding
Remote controler.
The beneficial effects of the utility model are: using the feed bin for having floor conveyor construction, it can be certainly in operation process
Dynamic handling material, in the automatic material casting of discharge process energy, woth no need to human assistance；Feed bin volume is big, can carry longer lines and tear open
Under fastener material；Rail conveying guide groove can be such that the rail welded on vehicle passes through, and be able to cooperate weldering rail and switch tracks integrated construction.
Detailed description of the invention
Fig. 1 is the front view of the utility model.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1.
Fig. 4 is feed bin and floor conveyor construction schematic diagram in Fig. 1.
Fig. 5 is discharging collecting conveyor structural schematic diagram in Fig. 1.
Fig. 6 is magnetic conveyor structural schematic diagram in Fig. 1.
Fig. 7 is that rail conveys guide barrel construction schematic diagram in Fig. 2.
Fig. 8 is the job state figure of the utility model.
Wherein: 1. railway conventional flat-panel vehicles, 2. base supports, 3. magnetic capture conveyers, 4. emergency are returned the vehicle to the garage and knock off system, and 5.
Hydraulic station, 6. traveling trolleies, 7. feed bins, 8. floor conveyers, 9. control transceivers, 10. control cabinets, 11. generating sets, 12.
Discharge conveyor, 13. rail convey guide groove, 14. traveling slots, 15. locking mechanisms, 16. backstops, 17. control panels, 18. travelings
Axis, 19. travelling wheels, 20. traveling hydraulic motors, 21. doors, 22. doors switch oil cylinder, and 23. floor conveyer frames, 24. drive
Moving axis, 25. speed reducers, 26. conveyer-belt hydraulic motors, 27. driven shafts, 28. chain stretching devices, 29. chains, 30. dischargings are defeated
Send machine rack, 31. trough idlers, 32. flat idlers, 33. first directive wheels, 34. activity-driven rollers, 35. tension structures,
36. fixed driving roller, 37. magnetic rollers, 38. magnetic capture conveyer frames, 39. corrugated sidewall conveyer belts, 40. promote oil
Cylinder, 41. driving rollers, 42. first carrying rollers, 43. second directive wheels, 44. guide groove bodies, 45. second rollers, 46. third directive wheels.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.
As shown in Figure 1, 2, rail fastener recyclable device, including base support 2, base support 2 use bolt mode
It is fixed on railway conventional flat-panel vehicle 1,2 upper surface of base support is provided with traveling slot 14；It is fixed in 2 one end of base support
Generating set 11；Discharge conveyor 12 is installed between generating set 11 and traveling slot 14；14 two sides of traveling slot are equipped with rail
Convey guide groove 13；Traveling trolley 6 is installed on 2 top of base support, and locking mechanism 15 is provided between traveling trolley 6 and base support 2
With backstop 16；6 end of traveling trolley is equipped with hydraulic station 5, emergency is returned the vehicle to the garage and knock off system 4, magnetic capture conveyer 3；On traveling trolley 6
Equipped with feed bin 7 and floor conveyer 8；Control panel 17 is arranged in 7 top of feed bin, and feed bin 7 is arranged close to one end of generating set 11
There are control cabinet 10 and control transceiver 9, the control cabinet 10 is connected with control transceiver 9 and control panel 17 respectively.
As shown in figure 3, at least there are two running shafts 18 and four travelling wheels 19, running shaft 18 to pass through for the traveling trolley 6
Traveling hydraulic motor 20 drives, and travelling wheel 19 is run in the traveling slot 14.
When operation, traveling trolley 6 can drive the hydraulic station 5 in portion mounted thereto, the system 4, magnetic capture of returning the vehicle to the garage and knock off of meeting an urgent need
Conveyer 3, feed bin 7, floor conveyer 8, control cabinet 10 etc. are run along railway conventional flat-panel vehicle length direction.
As shown in Fig. 4, the feed bin 7 is bolted on traveling trolley 6, and the floor conveyer 8 is integrated in one with feed bin 7
Body, the floor as feed bin use, and feed bin 7 includes skeleton and mask, are equipped with wearing plate inside mask, feed bin is close to generating set
11 one end is provided with door 21, door switch oil cylinder 22 is provided on door 21, storehouse can be driven by switching oil cylinder 22 by door
The opening and closing of door.
As shown in figure 4, the floor conveyer 8 uses horizontally disposed chain structure, including floor conveyer frame 23,
The skeleton of floor conveyer frame 23 and feed bin 7 welds, and one end of floor conveyer frame 23 is equipped with drive shaft 24, drive shaft
There are two sprocket wheels for installation on 24, and the end of drive shaft 24 is equipped with speed reducer 25 and conveyer-belt hydraulic motor 26, floor conveyer
The other end of rack 23 is equipped with driven shaft 27 and chain stretching device 28, and sprocket wheel, driving shaft sprocket wheel are equipped on driven shaft 27
Two chains 29 are installed between driven shaft sprocket wheel, two chains 29 are connected using connecting rod, and riveting has conveyer belt on connecting rod.
As shown in Figure 1,5, the discharge conveyor 12 is arranged horizontally belt conveyor, including discharge conveyor rack 30
With discharging conveyer belt, 30 one end of discharge conveyor rack is provided with activity-driven roller 34, the setting of 34 two sides of activity-driven roller
There is tension structure 35,30 other end of discharge conveyor rack is provided with fixed driving roller 36, activity-driven roller 34 and fixation
Hydraulic motor is mounted in driving roller 36, installation discharging conveying between activity-driven roller 34 and fixed driving roller 36
Band, discharging conveyer belt can way traffic, traffic direction is vertical with the traffic direction of railway conventional flat-panel vehicle 1, and along top, discharging is defeated
Band is sent to be disposed with trough idler 31, discharging conveyer belt is disposed with flat idler 32 and the first directive wheel 33 along lower section.
As shown in fig. 6, the magnetic capture conveyer 3 is the corrugated sidewall structure conveyer being in tilted layout, including magnetism
Collecting conveyor rack 38, the lower one end of magnetic capture conveyer frame 38 are equipped with magnetic roller 37, the magnetism roller
37 be electromagnetism roller.The higher one end of magnetic capture conveyer frame 38 is equipped with driving roller 41, and 41 both ends of driving roller are set
It is equipped with tensioning apparatus, 41 end of driving roller is equipped with speed reducer and hydraulic motor, and magnetic roller 37 and driving roller 41 pass through
Corrugated sidewall conveyer belt 39 connects, and 38 upper and lower part of magnetic capture conveyer frame is provided with the first carrying roller 42 and second and leads
To wheel 43.
As a shown in Figure 6, the 38 top midpoint of magnetic capture conveyer frame is provided with lift cylinder 40, is promoted
The cylinder body of oil cylinder 40 is connect with the traveling trolley 6, can change inclining for magnetic capture conveyer by the variation of oil cylinder stroke
Rake angle.
As shown in Fig. 2,7, the rail conveying guide groove 13 is made of the guide groove body 44 of at least two box structures, guide groove body
44 mounted in pairs are on the base support (2) of 7 two sides of feed bin, and guide groove body 44 and the base support 2 are using the side insulated
Formula connection, 44 lower part of guide groove body are provided with second roller 45, and side is equipped with third directive wheel 46.
In the above-described embodiments, the control transceiver 9 is wireless remote control transceiver, and control transceiver is configured with corresponding
Remote controler.
As shown in Fig. 1,8, the operational method of the rail fastener recyclable device is as follows:
S1, when fastener recycles operation, the railway for being equipped with the rail fastener recyclable device by railcar traction is general
Flat car starts generating set and hydraulic station, releases the locking of traveling trolley and base support, pass through remote controler to construction site
Or control panel control traveling trolley travelling to chassis bracket end and locks, and changes the tilt angle of magnetic capture conveyer,
Electromagnetism roller is set to reach 50-100mm range above the rail on rail track；
S2, starting magnetic capture conveyer operation, the starting of electromagnetism roller magnetic synchronous；Railcar traction is equipped with the iron
The railway conventional flat-panel vehicle of road fastener recyclable device can be conveyed along the route operation for needing fastener to recycle, fastener with magnetic capture
Machine runs up to feed bin top and falls into feed bin；
S3, when feed bin fastener center, piling height reaches setting height, remote controller or control panel run floor
Conveyer drives the fastener of recycling mobile to generating set end, until fastener recycling is completed；
S4 after the completion of fastener recycles operation, releases the locking of traveling trolley, remote controller or control panel, magnetism is received
Collection conveyer lifts to 100mm above base support, then controls traveling trolley and is run to generating set direction to keyed end simultaneously
Traveling trolley is locked, hydraulic station and generating set are stopped；
S5 when discharge operation, starts generating set and hydraulic station, remote controller or control panel, starting discharging conveying
Machine opens feed bin door, starts floor conveyer, and floor conveyer drives fastener to fall into discharge conveyor, and fastener passes through discharging
Conveyer is unloaded to material storeroom, stops hydraulic station and generating set after completing discharging.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (8)
1. rail fastener recyclable device, it is characterised in that: including base support (2), base support (2) uses bolt mode
It is fixed on railway conventional flat-panel vehicle (1), base support (2) upper surface is provided with traveling slot (14)；In base support (2) one
End is fixed with generating set (11)；Discharge conveyor (12) are installed between generating set (11) and traveling slot (14)；Traveling slot
(14) two sides are equipped with rail conveying guide groove (13)；Traveling trolley (6) are installed on base support (2) top, traveling trolley (6) and bottom
Locking mechanism (15) and backstop (16) are provided between seat support (2)；Traveling trolley (6) end is equipped with hydraulic station (5), emergency is received
Vehicle system (4), magnetic capture conveyer (3)；Traveling trolley (6) is equipped with feed bin (7) and floor conveyer (8)；On feed bin (7)
Control panel (17) are arranged in portion, and feed bin (7) is provided with control cabinet (10) and control transceiver close to the one end of generating set (11)
(9), the control cabinet (10) is connected with control transceiver (9) and control panel (17) respectively.
2. rail fastener recyclable device according to claim 1, it is characterised in that: the traveling trolley (6) is at least
There are two running shaft (18) and four travelling wheels (19), running shaft (18) is driven by traveling hydraulic motor (20), travelling wheel
(19) operation in the traveling slot (14).
3. rail fastener recyclable device according to claim 1, it is characterised in that: the feed bin (7) is bolted to away
On row trolley (6), the floor conveyer (8) is integrated in one with feed bin (7), and the floor as feed bin uses, feed bin (7) packet
Skeleton and mask are included, is equipped with wearing plate inside mask, feed bin is provided with door (21), door close to one end of generating set (11)
(21) it is provided with door switch oil cylinder (22) on, the opening and closing of door can be driven by door switch oil cylinder (22).
4. rail fastener recyclable device according to claim 1 or 3, it is characterised in that: the floor conveyer (8)
Using horizontally disposed chain structure, including floor conveyer frame (23), the bone of floor conveyer frame (23) and feed bin (7)
Frame welding, one end of floor conveyer frame (23) are equipped with drive shaft (24), and there are two sprocket wheels for installation in drive shaft (24), are driven
The end of moving axis (24) is equipped with speed reducer (25) and conveyer-belt hydraulic motor (26), the other end of floor conveyer frame (23)
Driven shaft (27) and chain stretching device (28) are installed, sprocket wheel, driving shaft sprocket wheel and driven shaft are installed on driven shaft (27)
Two chains (29) are installed, two chains (29) are connected using connecting rod, and riveting has conveyer belt on connecting rod between sprocket wheel.
5. rail fastener recyclable device according to claim 1, it is characterised in that: the discharge conveyor (12) is
Horizontally disposed belt conveyor, including discharge conveyor rack (30) and discharging conveyer belt, discharge conveyor rack (30) one end
It is provided with activity-driven roller (34), activity-driven roller (34) two sides are provided with tension structure (35), discharge conveyor rack
(30) other end is provided with fixed driving roller (36), is mounted on activity-driven roller (34) and fixed driving roller (36)
Hydraulic motor, installs discharging conveyer belt between activity-driven roller (34) and fixed driving roller (36), discharging conveyer belt can be double
To operation, traffic direction is vertical with the traffic direction of railway conventional flat-panel vehicle (1), and along top, discharging conveyer belt is disposed with flute profile support
Roller (31), along lower section, discharging conveyer belt is disposed with flat idler (32) and the first directive wheel (33).
6. rail fastener recyclable device according to claim 1, it is characterised in that: the magnetic capture conveyer
It (3) is the corrugated sidewall structure conveyer being in tilted layout, including magnetic capture conveyer frame (38), magnetic capture conveyer machine
Frame (38) lower one end is equipped with magnetic roller (37), and magnetic capture conveyer frame (38) higher one end is equipped with driving
Roller (41), driving roller (41) both ends are provided with tensioning apparatus, and driving roller (41) end is equipped with speed reducer and hydraulic horse
It reaches, magnetic roller (37) and driving roller (41) are connected by corrugated sidewall conveyer belt (39), magnetic capture conveyer frame
(38) upper and lower part is provided with the first carrying roller (42) and the second directive wheel (43)；The magnetic capture conveyer frame (38)
Top midpoint is provided with lift cylinder (40), and the cylinder body of lift cylinder (40) is connect with the traveling trolley (6), passes through oil
The variation of cylinder stroke can change the tilt angle of magnetic capture conveyer；The magnetism roller is electromagnetism roller.
7. rail fastener recyclable device according to claim 1, it is characterised in that: the rail conveys guide groove (13)
It is made of the guide groove body (44) of at least two box structures, guide groove body (44) mounted in pairs is in the pedestal of the feed bin (7) two sides
On bracket (2), guide groove body (44) is connect by the way of insulation with the base support (2), and guide groove body (44) lower part is provided with
Second roller (45), side are equipped with third directive wheel (46).
8. rail fastener recyclable device according to claim 1, it is characterised in that: the control transceiver (9) is
Wireless remote control transceiver, control transceiver are configured with corresponding remote controler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766802.7U CN208563014U (en) | 2018-05-22 | 2018-05-22 | Rail fastener recyclable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820766802.7U CN208563014U (en) | 2018-05-22 | 2018-05-22 | Rail fastener recyclable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208563014U true CN208563014U (en) | 2019-03-01 |
Family
ID=65482047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820766802.7U Active CN208563014U (en) | 2018-05-22 | 2018-05-22 | Rail fastener recyclable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208563014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560338A (en) * | 2018-05-22 | 2018-09-21 | 中国铁路广州局集团有限公司广州工务大修段 | Rail fastener retracting device and its operational method |
-
2018
- 2018-05-22 CN CN201820766802.7U patent/CN208563014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560338A (en) * | 2018-05-22 | 2018-09-21 | 中国铁路广州局集团有限公司广州工务大修段 | Rail fastener retracting device and its operational method |
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