CN111203839B - Adjustable supporting device suitable for multiple types of pantograph arms of railway vehicles - Google Patents
Adjustable supporting device suitable for multiple types of pantograph arms of railway vehicles Download PDFInfo
- Publication number
- CN111203839B CN111203839B CN202010218140.1A CN202010218140A CN111203839B CN 111203839 B CN111203839 B CN 111203839B CN 202010218140 A CN202010218140 A CN 202010218140A CN 111203839 B CN111203839 B CN 111203839B
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- supporting
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- support
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- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 238000000034 method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/08—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0007—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby for engines, motor-vehicles or bicycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H5/00—Tool, instrument or work supports or storage means used in association with vehicles; Workers' supports, e.g. mechanics' creepers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses an adjustable supporting device for various pantograph arms of a railway vehicle, which comprises an underframe component, an upper arm placing mechanism and a lower arm placing mechanism, wherein the underframe component comprises a cross beam and a chute beam, the cross beam and the chute beam are respectively provided with two groups, the cross beam and the chute Liang Shouwei are connected and form a frame, a chute beam is arranged between the cross beams, the upper arm placing mechanism comprises a first supporting frame and a second supporting frame, the first supporting frame consists of a supporting seat, a vertical rod and a first sliding beam, the vertical rod is fixedly arranged on the supporting seat, and the first sliding beam is fixedly connected with the vertical rod through a fixed beam. According to the invention, the first movable supporting mechanism and the second movable supporting mechanism are arranged on the upper arm placing mechanism, so that the upper arm placing requirement of the pantograph can be met by adjusting the first movable supporting mechanism and the second movable supporting mechanism, the structure is simple, the combination is convenient, the upper arm placing mechanism can be used in accordance with various upper arms of the pantograph, and the flexibility is good.
Description
Technical Field
The invention relates to the technical field related to rail transit, in particular to an adjustable supporting device for a plurality of types of pantograph arms of a rail vehicle.
Background
Rail transit refers to a type of transportation means or system in which an operating vehicle needs to travel on a specific track, and common rail transit includes conventional railways (national railways, intercity railways and urban railways), subways, light rails and trams, and novel rail transit includes magnetic levitation rail systems, monorail systems (straddle-type rail systems and suspension-type rail systems), passenger automatic shortcut systems and the like, and pantograph arms make important components on the rail transit.
When the current rail vehicle is used for maintaining the pantograph arm, the following problems exist: when the pantograph arms of different types are maintained, various different tools are required to be manufactured, the space of a waste workshop is large, the storage space is large, and when different procedures are carried out, the tools are troublesome to replace, time and labor are wasted, various tools are manufactured according to the pantograph arms of different types and the different procedures, the cost is increased, and improvement is required.
Disclosure of Invention
The invention aims to provide an adjustable supporting device for various types of pantograph arms of a railway vehicle, which is used for solving the problems that various different tools are required to be manufactured when the various types of pantograph arms mentioned in the background art are maintained, the space of a workshop is wasted, the storage space is large, the tools are troublesome to replace when different procedures are performed, the time and the labor are wasted, and various tools are manufactured according to the different types of pantograph arms and the different procedures, so that the cost and the expense are increased.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an adjustable strutting arrangement of multiple type pantograph arm suitable for rail vehicle, includes chassis subassembly, upper arm and puts mechanism and lower arm and put the mechanism, the chassis subassembly includes crossbeam and spout roof beam, crossbeam and spout roof beam all are equipped with two sets of, and crossbeam and spout Liang Shouwei are connected and form the frame, install the slide roof beam between the crossbeam, the upper arm is put the mechanism and is included first support frame and second support frame, first support frame comprises supporting seat, pole setting, first smooth roof beam, pole setting fixed mounting is on the supporting seat, first smooth roof beam passes through fixed beam and pole setting fixed connection, second support frame is the same with first support frame structure, be equipped with first removal supporting mechanism on the first smooth roof beam on the first support frame, be equipped with second removal supporting mechanism on the first smooth roof beam on the second support frame, lower arm mechanism includes first mount and second mount, first mount includes bottom support, erects pole setting, second smooth roof beam, erects pole setting fixed mounting is on the bottom support, the pole setting second both sides is installed on erecting the pole setting, it is also equipped with first removal supporting mechanism to erect the second mount, second is equipped with first removal supporting mechanism on the second mount, second is equipped with the second and moves the supporting mechanism on the second support frame.
Reinforcing ribs are arranged on two side arms at the joint of the first sliding beam and the vertical rod, the reinforcing ribs are fixedly connected with the vertical rod, supporting ribs are arranged at the bottom end of the first sliding beam, and two ends of each supporting rib are respectively fixedly connected with the first sliding beam and the vertical rod.
Preferably, a first reinforcing pipe is connected between the supporting seat and the vertical rod, limiting plates are arranged at two ends of the supporting seat, the second supporting frame and the first supporting frame are fixedly connected with the sliding chute beam through the limiting plates, a fastening supporting plate is fixedly arranged on one side of the supporting seat, reinforcing ribs are arranged on the fastening supporting plate, one ends of the reinforcing ribs are fixedly connected with the supporting seat, and the supporting seat is fixedly connected with the sliding chute beam through the fastening supporting plate.
Preferably, the bottom support is provided with a second reinforcing pipe, the vertical supporting rods are fixedly connected with the bottom support through the second reinforcing pipe, the second sliding beams are provided with a plurality of groups, ribs are fixedly connected between the second sliding beams and the vertical supporting rods, the two ends of the bottom support are provided with fixing plates, the first fixing frames and the second fixing frames are fixedly connected with the sliding chute beams through the fixing plates, one side of the bottom support is also connected with a fastening supporting plate, and the bottom support is fixedly connected with the sliding chute beams through the fastening supporting plate.
Preferably, the first movable supporting mechanism comprises a first supporting plate and a first movable pipe, a semicircular groove is formed in the first supporting plate, a rubber pad is arranged on an inner arm of the semicircular groove, the rubber pad is fixedly arranged on the first movable pipe, and the first supporting plate and the axis of the first movable pipe are arranged in parallel.
Preferably, the second moving support mechanism comprises a second support plate and a second moving tube, the second support plate is identical to the first support plate in structure, the second support plate is fixedly installed on the second moving tube, and the second support plate is perpendicular to the axis of the second moving tube.
Preferably, the two sides of the slideway beam are provided with long supporting beams, the long supporting beams are positioned between the slideway beam and the slideway beam, two ends of the long supporting beams are fixedly connected with the cross beam, and reinforcing short beams are connected between the long supporting beams and the slideway beam and between the long supporting beams and the slideway beam.
Preferably, the four corners of the underframe assembly are respectively provided with a universal wheel mounting plate, and universal wheels are mounted at the bottom ends of the universal wheel mounting plates.
The invention provides an adjustable supporting device for a plurality of types of pantograph arms of a railway vehicle, which has the following beneficial effects:
(1) According to the invention, the upper arm placing mechanism is arranged, and the first movable supporting mechanism and the second movable supporting mechanism are arranged on the upper arm placing mechanism, so that the upper arm placing requirement of the pantograph can be met by adjusting the first movable supporting mechanism and the second movable supporting mechanism, the structure is simple, the combination is convenient, the upper arm placing mechanism can be used in accordance with the upper arms of various types of pantographs, and the flexibility is good.
(2) According to the invention, the lower arm placing mechanism is arranged, and the first movable supporting mechanism and the second movable supporting mechanism are also arranged on the lower arm placing mechanism, so that the placing requirement of the lower arm of the pantograph can be met by adjusting the first movable supporting mechanism and the second movable supporting mechanism, the lower arm of the pantograph is convenient to maintain, the structure is simple, the combination is convenient, the use of the lower arm of the pantograph can be met, and the flexibility is good.
(3) The invention has simple integral structure, satisfies the requirement that a plurality of working procedures share one device, can reduce the occupied space of a plurality of devices, can be used in accordance with the upper arms or the lower arms of a plurality of types of pantographs, and has strong practicability.
Drawings
FIG. 1 is a schematic view of an upper arm placement mechanism according to the present invention;
FIG. 2 is a schematic view of a chassis assembly according to the present invention;
FIG. 3 is a schematic view of a lower arm placement mechanism according to the present invention;
FIG. 4 is a schematic view of a first support frame according to the present invention;
FIG. 5 is a schematic view of a first fixing frame according to the present invention;
FIG. 6 is a schematic view of a first movable supporting mechanism according to the present invention;
fig. 7 is a schematic structural diagram of a second moving support mechanism according to the present invention.
In the figure: 1. a chassis assembly; 2. an upper arm placement mechanism; 3. a lower arm placement mechanism; 4. a cross beam; 5. a runner beam; 6. reinforcing short beams; 7. a universal wheel; 8. a universal wheel fixing plate; 9. slide to beam; 10. a long support beam; 11. a support base; 12. a first reinforcing tube; 13. a support rib; 14. a limiting plate; 15. a first skid beam; 16. reinforcing ribs; 17. a vertical rod; 18. a fixed beam; 19. a connecting beam; 20. a bottom support; 21. a vertical strut; 22. a second skid beam; 23. a connecting beam; 24. a stiffener; 25. a second reinforcing tube; 26. a fixing plate; 27. fastening and supporting; 28. reinforcing ribs; 29. a first support plate; 30. a first moving tube; 31. a second support plate; 32. and a second moving tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-7, the present invention provides a technical solution: the utility model provides an adjustable strutting arrangement of multiple type pantograph arm suitable for rail vehicle, includes chassis subassembly 1, upper arm put mechanism 2 and lower arm put mechanism 3, chassis subassembly 1 includes crossbeam 4 and slide rail roof beam 5, crossbeam 4 and slide rail roof beam 5 all are equipped with two sets of, and crossbeam 4 and slide rail roof beam 5 head and the tail are connected and form the frame, install slide rail roof beam 9 between the crossbeam 4, upper arm put mechanism 2 includes first support frame and second support frame, first support frame comprises supporting seat 11, pole setting 17, first slide rail 15, pole setting 17 fixed mounting is on supporting seat 11, first slide rail 15 passes through fixed beam 18 and pole setting 17 fixed connection, second support frame is the same with first support frame structure, be equipped with first removal supporting mechanism on the first slide rail 15 on the first support frame, lower arm put mechanism 3 includes first mount and second mount, first mount includes bottom support 20, second mount 21 is equipped with second mount 21 on the second mount also, second mount 21 is equipped with second mount 21, second mount 21 is equipped with second mount 22 on the second mount, second mount 21 is equipped with second mount 23.
The two side arms of the junction of the first sliding beam 15 and the vertical rod 17 are respectively provided with a reinforcing rib 16, the reinforcing ribs 16 are fixedly connected with the vertical rod 17, the bottom end of the first sliding beam 15 is provided with a supporting rib 13, and the two ends of the supporting rib 13 are respectively fixedly connected with the first sliding beam 15 and the vertical rod 17, so that the stability of the installation of the first sliding beam 15 and the vertical rod 17 can be ensured.
The first reinforcing pipe 12 is connected between the supporting seat 11 and the vertical rod 17, the limiting plates 14 are arranged at two ends of the supporting seat 11, the second supporting frame and the first supporting frame are fixedly connected with the chute beam 5 through the limiting plates 14, the fastening supporting plate 27 is fixedly arranged on one side of the supporting seat 11, the reinforcing ribs 28 are arranged on the fastening supporting plate 27, one end of each reinforcing rib 28 is fixedly connected with the supporting seat 11, and the supporting seat 11 is fixedly connected with the chute beam 9 through the fastening supporting plate 27, so that the stability of the installation of the first supporting frame and the second supporting frame and the underframe assembly 1 can be ensured, and the working stability of the upper arm placing mechanism 2 is improved.
Be equipped with second enhancement pipe 25 on the bottom support 20, perpendicular branch 21 is through second enhancement pipe 25 and bottom support 20 fixed connection, second slide beam 22 is equipped with the multiunit, and fixedly connected with stiffener 24 between second slide beam 22 and the perpendicular branch 21, bottom support 20 both ends all are equipped with fixed plate 26, first mount and second mount are all through fixed plate 26 and spout roof beam 5 fixed connection, bottom support 20 one side also is connected with fastening backup pad 27, bottom support 20 is through fastening backup pad 27 and slide roof beam 9 fixed connection, can guarantee the stability that first mount and second mount and chassis subassembly 1 were installed to increase the stability that mechanism 3 work was put to the lower arm.
The first movable supporting mechanism comprises a first supporting plate 29 and a first movable tube 30, a semicircular groove 33 is formed in the first supporting plate 29, a rubber pad is arranged on an inner arm of the semicircular groove 33, the rubber pad is fixedly mounted on the first movable tube 30, the first supporting plate 29 and the axis of the first movable tube 30 are arranged in parallel, an upper arm of a pantograph or a lower arm of the pantograph can be placed in the semicircular groove 33, meanwhile, the rubber pad in the semicircular groove 33 can increase the stability of placement, and abrasion to the upper arm of the pantograph or the lower arm of the pantograph is avoided.
The second movable supporting mechanism comprises a second supporting plate 31 and a second movable tube 32, the second supporting plate 31 is identical to the first supporting plate 29 in structure, the second supporting plate 31 is fixedly installed on the second movable tube 32, the second supporting plate 31 is perpendicular to the axis of the second movable tube 32, the upper arm of the pantograph or the lower arm of the pantograph can be placed in a semicircular groove 33 on the second movable supporting mechanism, meanwhile, the rubber pad in the semicircular groove 33 can increase the placement stability, and abrasion to the upper arm of the pantograph or the lower arm of the pantograph is avoided.
The long supporting beams 10 are arranged on two sides of the slideway beam 9, the long supporting beams 10 are arranged between the slideway beam 5 and the slideway beam 9, two ends of each long supporting beam 10 are fixedly connected with the cross beam 4, and the long supporting beams 10 are connected with the slideway beam 9 and the slideway beam 5 through the reinforcing short beams 6, so that the stability of the whole assembly of the underframe assembly 1 can be ensured.
The four corners of chassis subassembly 1 all are equipped with universal wheel mounting panel 8, universal wheel 7 is installed to universal wheel mounting panel 8 bottom, through setting up universal wheel 7, can be convenient for remove the device main part, and the flexibility is good, convenient to use.
When the pantograph upper arm is required to be maintained, the position and the distance between the first movable supporting mechanism and the second movable supporting mechanism can be adjusted by sliding the first movable pipe 30 and the second movable pipe 32, so that the first movable supporting mechanism and the second movable supporting mechanism meet the requirements for placing the pantograph upper arm, the pantograph upper arm can be placed on the upper arm placing mechanism 2, meanwhile, the pantograph upper arm is positioned in the semicircular groove 33, a rubber pad in the semicircular groove 33 can increase the stability of placement, meanwhile, abrasion to the pantograph upper arm is avoided, after placement, maintenance to the pantograph upper arm can be facilitated, and when maintenance to the pantograph lower arm is required, the positions and the distances between the first movable supporting mechanism and the second movable supporting mechanism on the lower arm placing mechanism are adjusted, so that the first movable supporting mechanism and the second movable supporting mechanism meet the requirements for placing the pantograph lower arm, the pantograph lower arm can be placed on the upper arm placing mechanism 2, meanwhile, the lower arm is positioned in the semicircular groove 33, and the abrasion to the lower arm is avoided, and the stability to be increased; the invention has simple structure, strong practicability, matched assembly of parts and wide application range; the device can be quickly installed and fixed, is convenient to detach and assemble, occupies small space, and can be used in accordance with the upper arms or the lower arms of various types of pantographs; the equipment shared by multiple working procedures is met, and the popularization and the use are convenient.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides an adjustable strutting arrangement of multiple type pantograph arm suitable for rail vehicle, its characterized in that includes chassis subassembly (1), upper arm put mechanism (2) and lower arm put mechanism (3), chassis subassembly (1) include crossbeam (4) and spout roof beam (5), crossbeam (4) and spout roof beam (5) all are equipped with two sets of, and crossbeam (4) and spout roof beam (5) end to end and form the frame, install slide roof beam (9) between crossbeam (4), upper arm put mechanism (2) including first support frame and second support frame, first support frame comprises supporting seat (11), pole setting (17), first slide roof beam (15), pole setting (17) fixed mounting is on supporting seat (11), first slide roof beam (15) are through fixed beam (18) and pole setting (17) fixed connection, second support frame is the same with first support frame structure, be equipped with first removal supporting mechanism on first slide roof beam (15) on the first support frame, first removal supporting mechanism includes first backup pad (29) and first backup pad (29), be equipped with in first support pad (30) and first support pad (30) are parallel to one another on the fixed half-round tube (30),
the first sliding beam (15) on the second supporting frame is provided with a second movable supporting mechanism, the second movable supporting mechanism comprises a second supporting plate (31) and a second movable pipe (32), the second supporting plate (31) and the first supporting plate (29) are identical in structure, the second supporting plate (31) is fixedly arranged on the second movable pipe (32), the second supporting plate (31) and the axis of the second movable pipe (32) are vertically arranged, the lower arm placing mechanism (3) comprises a first fixing frame and a second fixing frame, the first fixing frame comprises a bottom supporting seat (20), a vertical supporting rod (21) and a second sliding beam (22), the vertical supporting rod (21) is fixedly arranged on the bottom supporting seat (20), the second sliding beam (22) is arranged on two sides of the vertical supporting rod (21), the vertical supporting rod (21) is provided with a connecting beam (23), the second fixing frame and the first fixing frame are identical in structure, the second sliding beam (22) on the first fixing frame is also provided with a first movable supporting mechanism, the second supporting beam (22) is also provided with a second supporting beam (22) and is provided with two long sliding beams (10) which are connected with two long sliding beams (10) respectively, the two supporting beams (10) are arranged on two sides of the supporting beams (10), and reinforcing short beams (6) are connected between the long supporting beams (10) and the slideway beams (9) and between the long supporting beams and the slideway beams (5).
2. An adjustable support device for a plurality of types of pantograph arms of a railway vehicle according to claim 1, wherein: the utility model discloses a sliding support comprises a first sliding beam (15) and a vertical rod (17), wherein reinforcing ribs (16) are arranged on two side arms at the joint of the first sliding beam (15) and the vertical rod (17), the reinforcing ribs (16) are fixedly connected with the vertical rod (17), supporting ribs (13) are arranged at the bottom end of the first sliding beam (15), two ends of the supporting ribs (13) are respectively fixedly connected with the first sliding beam (15) and the vertical rod (17), a first reinforcing pipe (12) is connected between the supporting base (11) and the vertical rod (17), limiting plates (14) are arranged at two ends of the supporting base (11), a second supporting frame and the first supporting frame are fixedly connected with a chute beam (5) through the limiting plates (14), a fastening supporting plate (27) is fixedly arranged on one side of the supporting base (11), reinforcing ribs (28) are arranged on one end of the fastening supporting plate (27) and fixedly connected with the supporting base (11), the supporting base (11) are fixedly connected with the sliding rail beam (9) through the fastening supporting plate (27), a second reinforcing pipe (25) is arranged on the supporting base (20), a plurality of groups of supporting rods (21) are fixedly connected with the second supporting base (22) through the second reinforcing pipes (21), the bottom support (20) both ends all are equipped with fixed plate (26), first mount and second mount are all through fixed plate (26) and spout roof beam (5) fixed connection, bottom support (20) one side also is connected with fastening backup pad (27), bottom support (20) are through fastening backup pad (27) and slide roof beam (9) fixed connection.
3. An adjustable support device for a plurality of types of pantograph arms of a railway vehicle according to claim 1, wherein: the universal wheel mounting plate (8) is arranged at four corners of the underframe assembly (1), and universal wheels (7) are arranged at the bottom ends of the universal wheel mounting plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218140.1A CN111203839B (en) | 2020-03-25 | 2020-03-25 | Adjustable supporting device suitable for multiple types of pantograph arms of railway vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010218140.1A CN111203839B (en) | 2020-03-25 | 2020-03-25 | Adjustable supporting device suitable for multiple types of pantograph arms of railway vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111203839A CN111203839A (en) | 2020-05-29 |
| CN111203839B true CN111203839B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010218140.1A Active CN111203839B (en) | 2020-03-25 | 2020-03-25 | Adjustable supporting device suitable for multiple types of pantograph arms of railway vehicles |
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| CN (1) | CN111203839B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113843723A (en) * | 2021-08-17 | 2021-12-28 | 中车唐山机车车辆有限公司 | Roof skeleton location frock |
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| CN110682259A (en) * | 2019-10-29 | 2020-01-14 | 中车洛阳机车有限公司 | Multi-position rotatable pantograph bottom frame overhauling device |
| CN212096228U (en) * | 2020-03-25 | 2020-12-08 | 优立科轨道交通技术有限公司 | Adjustable supporting device suitable for various pantograph arms of rail vehicle |
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2020
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| JP2013258854A (en) * | 2012-06-13 | 2013-12-26 | Kinki Sharyo Co Ltd | Pantograph support device |
| CN203077252U (en) * | 2012-12-14 | 2013-07-24 | 长春轨道客车股份有限公司 | Pantograph installing frame detecting and repairing tool |
| CN205113373U (en) * | 2015-09-30 | 2016-03-30 | 芜湖博康机电有限公司 | Conveying trolley |
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| CN212096228U (en) * | 2020-03-25 | 2020-12-08 | 优立科轨道交通技术有限公司 | Adjustable supporting device suitable for various pantograph arms of rail vehicle |
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| CN111203839A (en) | 2020-05-29 |
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