CN210621354U - Rail running gear and railway switch replacing machine comprising same - Google Patents
Rail running gear and railway switch replacing machine comprising same Download PDFInfo
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- CN210621354U CN210621354U CN201921491827.1U CN201921491827U CN210621354U CN 210621354 U CN210621354 U CN 210621354U CN 201921491827 U CN201921491827 U CN 201921491827U CN 210621354 U CN210621354 U CN 210621354U
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Abstract
The utility model discloses a rail running gear reaches railway switch shop including device and changes machine, and running gear includes: the lifting mechanism comprises a framework, a core plate, an oil cylinder, a lifting connecting rod mechanism, a steel rail wheel, a side bearing and a wheel mounting frame. The steel rail wheels are arranged on the wheel mounting rack, the wheel mounting rack is hinged with the framework, and the framework is hinged with one end of the lifting connecting rod mechanism. The other end of the lifting connecting rod mechanism is connected with the oil cylinder, the lifting connecting rod mechanism is driven to move by the expansion and contraction of the oil cylinder, and the rail wheel is driven by the lifting connecting rod mechanism to realize the folding and unfolding operation. The core disc and the side bearing are arranged on the framework, and the steel rail walking device is elastically connected with a sleeper beam of the railway turnout laying and replacing machine through the core disc and the side bearing. The utility model discloses can solve current railway switch and spread the machine of trading and walk line speed slow, walk the line limitation big on railway ballast, mobility not good enough technical problem when the long-distance special occasion far away.
Description
Technical Field
The utility model relates to a railway engineering machine tool technical field especially relates to a rail running gear reaches railway switch shop and changes machine including the device.
Background
A turnout is a line connection device for a rolling stock to switch from one track to another and is also one of the weak links of a track. The switch points need to be replaced regularly, and replacing the switch points is a very difficult task. At present, the method for replacing the turnout mainly comprises the following modes: one is to use multiple sets of high-stroke hydraulic track jack to lift the turnout, and the lower pad roller is pushed manually. And the other method is to jointly lay and replace the upper computer and the lower computer by a plurality of groups. There is also a switch laying machine for track construction as described in utility model patent CN203866656U, which is mainly composed of a frame, a hoisting mechanism, a crawler and legs. And utility model patent CN207435828U then discloses a railway switch laying device, include: the device comprises longitudinal beams, a lifting beam, a telescopic arm, a supporting walking device, a middle supporting device and a lifting device. The turnout replacement equipment described in the two patents mainly comprises a framework, a lifting mechanism, a crawler traveling mechanism and supporting legs, the combination of the crawler traveling mechanism and the supporting legs is adopted for lifting, transporting and replacing turnouts, and a laying process is not needed for assisting steel rails, so that the turnout replacement equipment has certain advantages. However, the two patents adopt a track running mechanism, the running speed is low, the limitation of running on railway ballasts is large, and the mobility is poor when the railway ballasts are far away from a special site.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a rail running gear reaches railway switch shop and trades machine including device to solve current railway switch shop and trade the machine and walk to move the speed slow, walk to have a limitation big on railway ballast, the mobility is not good enough technical problem when far away special site.
In order to realize the above utility model purpose, the utility model particularly provides a rail running gear's technical implementation scheme, rail running gear, include: the lifting mechanism comprises a framework, a core plate, an oil cylinder, a lifting connecting rod mechanism, a steel rail wheel, a side bearing and a wheel mounting frame. The steel rail wheels are arranged on the wheel mounting rack, the wheel mounting rack is hinged with the framework, and the framework is hinged with one end of the lifting connecting rod mechanism. The other end of the lifting connecting rod mechanism is connected with the oil cylinder, the lifting connecting rod mechanism is driven to move by the expansion and contraction of the oil cylinder, and then the lifting connecting rod mechanism drives the steel rail wheel to realize the folding and unfolding operation. The core disc and the side bearing are arranged on the framework, and the steel rail walking device is elastically connected with a sleeper beam of the railway turnout laying and replacing machine through the core disc and the side bearing.
Furthermore, the device also comprises a driving mechanism arranged on the wheel mounting frame, and the driving mechanism carries running power by itself and can drive the steel rail running gear to run.
Furthermore, the framework comprises a planar frame in a shape of Chinese character 'ri' and longitudinal frames in a shape of Chinese character 'men', one ends of openings of the two longitudinal frames are connected to the planar frame, and the two longitudinal frames are respectively arranged above the two openings of the planar frame side by side along the operation direction of the steel rail walking device. And a space for accommodating the lifting connecting rod mechanism, the steel rail wheel and the wheel mounting rack is formed between the plane frame and the longitudinal frame. When the oil cylinder is contracted, the steel rail wheel, the wheel mounting frame and the driving mechanism are recovered to the inside of the framework.
Further, the lifting connecting rod mechanism comprises a cross beam and a connecting rod. The hydro-cylinder have the rod end to be connected to the top of crossbeam, the crossbeam has two connecting rods along each articulated two ends of length direction, is located respectively each connecting rod of crossbeam different ends is connected to the wheel mounting bracket of one side. The two ends of the cross beam along the length direction are provided with sliding blocks, the two side walls of the longitudinal frame are vertically provided with a pair of sliding grooves, and when the oil cylinder stretches, the sliding blocks can move up and down in the sliding grooves so as to achieve the folding and unfolding of the steel rail wheel.
Furthermore, the top of the wheel mounting frame is hinged with the inner side part of the square opening of the plane frame, and the inner side part of the wheel mounting frame is hinged with the tail end of the connecting rod.
Further, the center plate is arranged on the upper portion of the first cross beam in the middle of the plane frame.
Furthermore, a pair of side bearings are respectively arranged on the upper parts of two sides of the plane frame along the direction vertical to the operation direction of the steel rail walking device.
The utility model discloses still specifically provide a railway switch including aforementioned rail running gear in addition and spread the technical implementation scheme who changes the machine, railway switch spreads and changes the machine, include:
a main beam;
the crawler traveling devices, the fixed supporting legs and the steel rail traveling devices are symmetrically arranged along the longitudinal center of the main beam;
the telescopic arms are arranged at two ends of the main beam along the operation direction of the railway turnout replacing machine;
and a turnout hoisting device arranged at the end part of the telescopic arm.
Further, the railway turnout laying and replacing machine further comprises crawler support legs arranged on two sides of the main beam in the direction perpendicular to the operation direction, paired crawler support leg installation seats are movably arranged on the main beam, and the crawler support legs are telescopically installed in the crawler support leg installation seats.
Furthermore, the railway turnout laying and exchanging machine further comprises an elastic suspension, a hanging rod, a pin shaft, a connecting seat and a connecting beam. The two connecting beams are arranged between the two crawler supporting leg installing seats, the hanging rod is pivoted with the two connecting beams through a pin shaft, one end of the hanging rod is hinged with the second cross beam of the main beam, and the main beam is hung below the crawler supporting leg installing seats through the hanging rod and the pin shaft. The connecting base is arranged on the crawler supporting leg mounting base, and the elastic suspension is arranged between the crawler supporting leg mounting base and the main beam.
Through implementing above-mentioned the utility model provides a rail running gear reaches railway switch shop and change machine's technical scheme including the device has following beneficial effect:
(1) the utility model discloses rail running gear and railway switch that includes the device spread and change the machine, adopt rail walking and the combination mode of track walking, adopt rail walking mode when the transition of longer distance, can effectively reduce the transition operating time; the track walking mode is adopted during operation, so that the working procedures of installing process auxiliary rails and the like are omitted, the maneuverability of the turnout replacing machine is greatly increased, and the operation efficiency is improved;
(2) the utility model discloses rail running gear and railway switch that includes the device spread and change the machine, rail running gear rail wheel can receive and release fast, can guarantee that the rail wheel can make full use of when adopting rail walking mode, can avoid in time interfering with the switch simultaneously in the operation;
(3) the utility model discloses rail running gear reaches railway switch shop and changes machine including the device, and the mode that track landing leg mount pad adopted jib and elasticity to hang is connected with the girder, has guaranteed that switch shop and has very strong adaptability to the topography when the track is walked to change the machine, has sufficient stability simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of an overall side structure of a specific embodiment of the railway switch laying and exchanging machine of the present invention;
fig. 2 is a schematic perspective view of a specific embodiment of the railway switch laying and replacing machine of the present invention;
fig. 3 is a schematic perspective view of a railway switch laying and replacing machine according to a specific embodiment of the present invention at another viewing angle;
FIG. 4 is a schematic view of a rail wheel-laying state of an embodiment of the rail running gear of the present invention;
FIG. 5 is a schematic view showing a rail wheel-retracted state of an embodiment of the rail running gear of the present invention;
FIG. 6 is a schematic view of a partial structure of an embodiment of the rail running gear of the present invention;
FIG. 7 is a schematic view of a rail wheel in another view of an embodiment of the rail running gear of the present invention;
FIG. 8 is a schematic view of an installation structure of a specific embodiment of the rail running gear of the present invention;
fig. 9 is a schematic view of a connection structure of a track leg mounting seat and a main beam in a specific embodiment of the railway switch laying machine of the present invention;
in the figure: 1-switch lifting device, 2-telescopic boom, 3-rail running gear, 31-frame, 311-plane frame, 312-longitudinal frame, 313-first beam, 32-driving mechanism, 33-center plate, 34-oil cylinder, 35-lifting linkage mechanism, 351-beam, 352-chute, 353-slide block, 354-connecting rod, 36-rail wheel, 37-side bearing, 38-wheel mounting rack, 4-crawler supporting leg, 5-fixed supporting leg, 6-electric system, 7-power system, 8-main beam, 81-sleeper beam, 82-second beam, 9-crawler supporting leg mounting seat, 91-elastic suspension, 92-suspension rod, 93-pin shaft, 94-connecting seat, 95-connecting beam, 10-crawler track running gear, 100-railway switch laying and exchanging machine.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 9, the present invention provides a specific embodiment of a rail running gear and a railway switch laying machine including the same, and the present invention will be further described with reference to the accompanying drawings and the specific embodiment.
Example 1
As shown in fig. 4, an embodiment of a rail running gear 3 specifically includes: frame 31, core plate 33, oil cylinder 34, lifting linkage 35, rail wheel 36, side bearing 37 and wheel mounting bracket 38. The rail wheels 36 are mounted on wheel mounting brackets 38, the wheel mounting brackets 38 are hinged to the frame 31, the frame 31 is simultaneously hinged to one end of the lifting linkage 35, and the other end of the lifting linkage 35 is connected to the oil cylinder 34. The lifting linkage mechanism 35 is driven to move by the expansion of the oil cylinder 34, and then the rail wheel 36 is driven by the lifting linkage mechanism 35 to realize the retracting operation, so that the interference of the rail wheel 36 to the turnout is avoided when the railway turnout spreader 100 carries out turnout hoisting operation. The core plate 33 and the side bearing 37 are arranged on the framework 31, and the rail running gear 3 is elastically connected with a sleeper beam 81 of the railway switch laying machine 100 through the core plate 33 and the side bearing 37, so that the stability and the curve passing performance of the rail running gear 3 are fully ensured.
The rail running gear 3 further comprises a driving mechanism 32 arranged on the wheel mounting frame 38, and the driving mechanism 32 is provided with running power and can drive the rail running gear 3 to run. The frame 31 includes a planar frame 311 shaped like a Chinese character 'ri' and longitudinal frames 312 shaped like a Chinese character 'men' and the two longitudinal frames 312 have openings connected to the planar frame 311 at one end and are respectively disposed above the two openings of the planar frame 311 in parallel with each other in the working direction of the rail running device 3. A space for accommodating the elevation link mechanism 35, the rail wheel 36, and the wheel mount 38 is formed between the plane frame 311 and the longitudinal frame 312. As shown in fig. 5 to 7, the top of the wheel mount 38 is hinged to the inner side of the square opening of the planar frame 311, and the inner side of the wheel mount 38 is hinged to the end of the link 354. When the cylinder 34 is retracted, the rail wheels 36, the wheel mounts 38, and the drive mechanism 32 are retracted into the frame 31.
The lift linkage 35 further includes a cross beam 351 and a link 354. The rod end of the cylinder 34 is connected to the top of the cross beam 351, two connecting rods 354 are respectively hinged to both ends of the cross beam 351 in the length direction, and one connecting rod 354 located at each of the different ends of the cross beam 351 is connected to the wheel mounting frame 38 on one side. The two ends of the cross beam 351 in the length direction are both provided with a sliding block 353, the two side walls of the longitudinal frame 312 are vertically provided with a pair of sliding grooves 352, and when the oil cylinder 34 extends and retracts, the sliding block 353 can move up and down in the sliding grooves 352 to achieve retraction and release of the steel rail wheel 36.
The core 33 is disposed on the upper portion of the first cross member 313 in the middle of the plane frame 311. The pair of side bearings 37 are respectively provided on upper portions of both sides of the flat frame 311 in a direction perpendicular to the working direction of the rail running gear 3.
Example 2
As shown in fig. 1 to 3, an embodiment of a railway switch changer 100 specifically includes:
a main beam 8;
a crawler track running gear 10, a fixed leg 5 and a rail running gear 3 as described in embodiment 1, which are arranged in longitudinal direction (direction L shown in fig. 1 to 3) of the main beam 8;
the telescopic arms 2 are arranged at two ends of the main beam 8 along the operation direction (the direction L shown in the attached figures 1 to 3, namely the longitudinal direction of the main beam 8) of the railway turnout spreader 100;
and a turnout hoisting device 1 arranged at the end part of the telescopic arm 2.
The railway turnout laying and replacing machine 100 capable of running on the road and railway further comprises an electrical system 6, a power system 7 and a crawler supporting leg mounting seat 9, can run on a steel rail, can also run on a crawler on the ground without the steel rail, can realize the operations of lifting, transporting and laying turnouts, has a quick transition function, and does not need to lay a process auxiliary track in advance.
The railway turnout spreader 100 further comprises crawler support legs 4 arranged on two sides of the main beam 8 in the direction perpendicular to the operation direction, paired crawler support leg mounting seats 9 are movably arranged on the main beam 8, and the crawler support legs 4 are telescopically arranged in the crawler support leg mounting seats 9.
As shown in fig. 9, the railway switch laying machine 100 further includes an elastic suspension 91, a suspension rod 92, a pin 93, a connecting seat 94 and a connecting beam 95. Two tie-beams 95 set up between two track landing leg mount pads 9, jib 92 is through the pin joint of round pin axle 93 with two tie-beams 95 pin joint, and the one end of jib 92 is articulated with second crossbeam 82 of girder 8, and girder 8 passes through jib 92 and pin axle 93 hoist and mount in the below of track landing leg mount pad 9. The connecting seat 94 is arranged on the track supporting leg mounting seat 9, and the elastic suspension 91 is arranged between the track supporting leg mounting seat 9 and the main beam 8, so that the adaptability and stability of the railway turnout spreader 100 to uneven terrain when the track runs are guaranteed.
The main beam 8 is hung below the crawler leg mounting seat 9 through a hanging rod 92 and a pin 93, so that the adaptability of the railway turnout spreader 100 to the unevenness of the railway is ensured when the crawler runs. Meanwhile, an elastic suspension 91 is arranged between the track support leg mounting seat 9 and the main beam 8, so that the running stability of the railway turnout spreader 100 is ensured.
As shown in fig. 8, in order to install the rail runner 3, the rail runner 3 is connected to the sleeper beam 81 through the center plate 33 and the side bearings 37, and the connection manner of the center plate 33 and the side bearings 37 ensures the stability and curve trafficability of the railway switch laying machine 100 during rail running. When the railway switch spreader 100 is operating to hoist a switch, the rail wheels 36 are retracted, as shown in fig. 5-7, thereby avoiding interference between the rail wheels 36 and the switch.
In example 2, a railroad switch laying machine 100 having both the crawler traveling device 10 and the railroad traveling device 3 is provided, and the speed is increased by using the rail traveling mode at a relatively long distance. Meanwhile, a track walking mode is adopted during turnout laying point operation, so that the procedures of laying process auxiliary rails and the like are omitted, and the efficiency is higher.
Through implementing the utility model discloses rail running gear that concrete embodiment described reaches railway switch shop and change machine's technical scheme including the device can produce following technological effect:
(1) the steel rail walking device and the railway turnout laying and exchanging machine comprising the same described in the specific embodiment of the utility model adopt a mode of combining steel rail walking and crawler walking, and adopt a steel rail walking mode when transferring at a longer distance, thereby effectively reducing the transferring operation time; the track walking mode is adopted during operation, so that the working procedures of installing process auxiliary rails and the like are omitted, the maneuverability of the turnout replacing machine is greatly increased, and the operation efficiency is improved;
(2) the steel rail walking device described in the embodiment of the utility model and the railway turnout laying and exchanging machine comprising the device can quickly receive and release the steel rail wheels of the steel rail walking device, can ensure that the steel rail wheels can be fully utilized when a steel rail walking mode is adopted, and can avoid the interference with the turnout in time during operation;
(3) the utility model discloses rail running gear that concrete embodiment described reaches railway switch shop and change machine including the device, the mode that track landing leg mount pad adopted jib and elasticity to hang is connected with the girder, has guaranteed that switch shop and has very strong adaptability to the topography when the track is walked to change the machine, has sufficient stability simultaneously.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. A rail running gear, comprising: the device comprises a framework (31), a core disc (33), an oil cylinder (34), a lifting connecting rod mechanism (35), a steel rail wheel (36), a side bearing (37) and a wheel mounting rack (38); the rail wheels (36) are mounted on a wheel mounting frame (38), the wheel mounting frame (38) is hinged with the framework (31), and the framework (31) is hinged with one end of the lifting connecting rod mechanism (35) at the same time; the other end of the lifting link mechanism (35) is connected with an oil cylinder (34), the lifting link mechanism (35) is driven to move by utilizing the extension and retraction of the oil cylinder (34), and then the lifting link mechanism (35) drives a steel rail wheel (36) to realize the retraction operation; the core plate (33) and the side bearing (37) are arranged on the framework (31), and the steel rail walking device (3) is elastically connected with a sleeper beam (81) of the railway turnout spreader (100) through the core plate (33) and the side bearing (37).
2. The rail running gear according to claim 1, wherein: the device also comprises a driving mechanism (32) arranged on the wheel mounting frame (38), wherein the driving mechanism (32) is provided with running power and can drive the steel rail running device (3) to run.
3. The rail running gear according to claim 2, wherein: the framework (31) comprises a planar frame (311) in a shape of Chinese character 'ri' and longitudinal frames (312) in a shape of Chinese character 'men', one ends of openings of the two longitudinal frames (312) are connected to the planar frame (311), and the two longitudinal frames are arranged above the two openings of the planar frame (311) in parallel along the operation direction of the steel rail walking device (3); a space for accommodating the lifting linkage mechanism (35), the rail wheel (36) and the wheel mounting frame (38) is formed between the plane frame (311) and the longitudinal frame (312); when the oil cylinder (34) is contracted, the rail wheel (36), the wheel mounting frame (38) and the driving mechanism (32) are recovered to the inside of the framework (31).
4. The rail running gear according to claim 3, wherein: the lifting connecting rod mechanism (35) comprises a cross beam (351) and a connecting rod (354); the rod end of the oil cylinder (34) is connected to the top of a cross beam (351), two ends of the cross beam (351) in the length direction are respectively hinged with two connecting rods (354), and one connecting rod (354) respectively positioned at different ends of the cross beam (351) is connected to a wheel mounting frame (38) on one side; the two ends of the cross beam (351) in the length direction are provided with sliding blocks (353), two side walls of the longitudinal frame (312) are provided with a pair of sliding grooves (352) in the vertical direction, and when the oil cylinder (34) stretches, the sliding blocks (353) can move up and down in the sliding grooves (352) to achieve the folding and unfolding of the steel rail wheel (36).
5. The rail running gear according to claim 4, wherein: the top of the wheel mounting frame (38) is hinged with the inner side part of the square opening of the plane frame (311), and the inner side part of the wheel mounting frame (38) is hinged with the tail end of the connecting rod (354).
6. The rail running gear according to claim 3, 4 or 5, wherein: the center plate (33) is arranged on the upper part of the first cross beam (313) in the middle of the plane frame (311).
7. The rail running gear according to claim 6, wherein: a pair of side bearings (37) are respectively provided on the upper portions of both sides of the planar frame (311) in the direction perpendicular to the working direction of the rail running gear (3).
8. A railway switch laying and replacing machine is characterized by comprising:
a main beam (8);
-a crawler track (10), a fixed leg (5) and a rail track (3) according to any one of claims 1 to 7, arranged symmetrically along the longitudinal centre of the main beam (8);
the telescopic arms (2) are arranged at two ends of the main beam (8) along the operation direction of the railway turnout laying and exchanging machine (100);
and a turnout hoisting device (1) arranged at the end part of the telescopic arm (2).
9. The railway switch machine of claim 8, wherein: railway switch shop and change machine (100) still including set up in main beam (8) along track landing leg (4) of perpendicular to operation direction both sides, mated track landing leg mount pad (9) movably sets up on main beam (8), track landing leg (4) telescopically is installed in track landing leg mount pad (9).
10. The railway switch machine as claimed in claim 9, wherein: the railway turnout spreader (100) further comprises an elastic suspension (91), a suspension rod (92), a pin shaft (93), a connecting seat (94) and a connecting beam (95); the two connecting beams (95) are arranged between the two crawler support leg mounting seats (9), the suspender (92) is pivoted with the two connecting beams (95) through a pin shaft (93), one end of the suspender (92) is hinged with the second cross beam (82) of the main beam (8), and the main beam (8) is hoisted below the crawler support leg mounting seats (9) through the suspender (92) and the pin shaft (93); the connecting seat (94) is arranged on the crawler support leg mounting seat (9), and the elastic suspension (91) is arranged between the crawler support leg mounting seat (9) and the main beam (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491827.1U CN210621354U (en) | 2019-09-09 | 2019-09-09 | Rail running gear and railway switch replacing machine comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921491827.1U CN210621354U (en) | 2019-09-09 | 2019-09-09 | Rail running gear and railway switch replacing machine comprising same |
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| CN210621354U true CN210621354U (en) | 2020-05-26 |
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| CN201921491827.1U Active CN210621354U (en) | 2019-09-09 | 2019-09-09 | Rail running gear and railway switch replacing machine comprising same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608036A (en) * | 2020-06-05 | 2020-09-01 | 杭州刚方机械科技有限公司 | Equipment for automatically replacing railway sleeper |
| CN114673035A (en) * | 2022-05-07 | 2022-06-28 | 株洲时代电子技术有限公司 | Track slab replacing operation method |
-
2019
- 2019-09-09 CN CN201921491827.1U patent/CN210621354U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608036A (en) * | 2020-06-05 | 2020-09-01 | 杭州刚方机械科技有限公司 | Equipment for automatically replacing railway sleeper |
| CN111608036B (en) * | 2020-06-05 | 2020-12-18 | 闽清紫扬信息技术有限公司 | Equipment for automatically replacing railway sleeper |
| CN114673035A (en) * | 2022-05-07 | 2022-06-28 | 株洲时代电子技术有限公司 | Track slab replacing operation method |
| CN114673035B (en) * | 2022-05-07 | 2024-02-20 | 株洲时代电子技术有限公司 | Track slab replacement operation method |
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