CN113428011B - Pantograph for urban rail transit vehicle - Google Patents
Pantograph for urban rail transit vehicle Download PDFInfo
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- CN113428011B CN113428011B CN202110812539.7A CN202110812539A CN113428011B CN 113428011 B CN113428011 B CN 113428011B CN 202110812539 A CN202110812539 A CN 202110812539A CN 113428011 B CN113428011 B CN 113428011B
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- bow
- pantograph
- spring
- rail transit
- underframe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/28—Devices for lifting and resetting the collector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
- B60L5/28—Devices for lifting and resetting the collector
- B60L5/30—Devices for lifting and resetting the collector using springs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention relates to a pantograph for urban rail transit vehicles, which comprises a bottom frame, wherein insulators are arranged at four corners of the bottom side of the bottom frame, the middle part of the top side of the bottom frame is rotatably arranged with two ends of a T-shaped lower arm, and the top end of the T-shaped lower arm is rotatably arranged with the bottom end of a U-shaped upper arm; when the bow rises and contacts with the bow net, the lifter moved down along the gag lever post through the guide slot this moment, the stop ring compresses first spring, elastic deformation through the second spring makes bow and bow net elastic contact, when rocking appears in urban rail transit vehicle removal simultaneously, cover seat and pivot relative slip, the translation is gone up at the initiative wide tooth to driven narrow tooth this moment, compress and stretch first spring, elastic deformation through first spring plays the cushioning effect, when guaranteeing the vehicle and removing, the bow position contacts with the bow net all the time, and when the translation, relative buffering through cover seat and pivot slides, slow down the sliding friction of bow and bow net, the life of extension bow.
Description
Technical Field
The invention relates to the technical field of urban rail transit, in particular to a pantograph for urban rail transit vehicles.
Background
Urban rail transit vehicle specialty includes subway and tram, and the two all contacts through pantograph and bow net, and then provides electric power support for subway and tram through the bow net, realizes subway and tram's operation.
When the pantograph is used, when a vehicle moves at a high speed, the shaking of the vehicle can cause the movement of the bow part, so that the bow part is separated from the pantograph-catenary temporarily, and meanwhile, the horizontal movement can cause the friction between the bow and the pantograph-catenary, so that the service life of the bow is short; meanwhile, in the process of high movement, the existing bow head is easy to rotate and deviate, so that the bow head is separated from a bow net, and the current supply is unstable.
Disclosure of Invention
The invention provides a pantograph for urban rail transit vehicles, which solves the problems that when the pantograph is used and a vehicle moves at a high speed, the vehicle shakes to cause the movement of a pantograph head part, so that the vehicle is separated from a pantograph net temporarily, and meanwhile, the horizontal movement causes the friction between the pantograph head and the pantograph net, so that the service life of the pantograph head is short; meanwhile, in the process of high movement, the existing bow head is easy to rotate and deviate, so that the bow head is separated from a bow net, and the technical problem of unstable current supply is caused.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a pantograph for urban rail transit vehicle, includes under chassis, the T type arm, U type upper arm and bow, the insulator is all installed in chassis bottom side four corners, chassis top side middle part rotates the installation with T type underarm both ends, the installation is rotated with U type upper arm bottom in the arm top under the T type, U type upper arm bottom and chassis one end rotate the installation with the guide arm both ends respectively, the cover seat is installed on U type upper arm top, the inside rotation of cover seat runs through and installs the pivot, the support arm is all installed at the pivot both ends, the barrel is installed respectively at the support arm both ends, the inside activity of barrel runs through installs the lifter, both ends the lifter is connected with the bow both ends respectively.
Preferably, the axle seats are symmetrically installed at the top of the underframe, two ends of the T-shaped lower arm are connected with the axle seat bearings, a connecting lug is arranged on the outer side of the middle of the T-shaped lower arm and is rotatably connected with the telescopic end of the air pressure rod, and one end of the air pressure rod is rotatably connected with the underframe.
Preferably, the connecting lug is connected with the pneumatic rod through an inserting shaft, and one end of the pneumatic rod is connected with the first lug seat of the underframe through an inserting shaft.
Preferably, a connecting shaft is arranged inside the bottom end of the U-shaped upper arm, and the top end of the T-shaped lower arm is connected with a shaft sleeve sleeved on the outer side of the connecting shaft.
Preferably, the bottom end of the U-shaped upper arm and the underframe are both provided with second ear seats, and the two ends of the guide rod are respectively connected with the second ear seats through inserting shafts.
Preferably, the cover seat middle part outside is provided with adjusts the shell, it is provided with the power shell to adjust the shell outside, pneumatic motor is installed in the power shell outside, and the pneumatic motor output is located the power shell and installs the wide tooth of initiative, the pivot outside just is located power shell internally mounted and has driven narrow tooth, and the width of driven narrow tooth is the fifth of the length of the wide tooth of initiative, the pivot outside just is located driven narrow tooth both ends and overlaps respectively and be equipped with first spring.
Preferably, a limiting rod is vertically arranged in the barrel, a second spring is sleeved on the outer side of the limiting rod, a guide groove is formed in the bottom end of the lifting rod, the limiting rod is located in the guide groove, a limiting ring is arranged on the outer side of the bottom end of the lifting rod, and the limiting ring is connected with the top end of the second spring.
Preferably, the specific operation steps of the pantograph are as follows:
the method comprises the following steps: the underframe is arranged on the top side of an urban rail transit vehicle through an insulator, when the underframe is used, the underframe contracts through a pneumatic rod and acts on a connecting lug so as to drive the T-shaped lower arm to rotate between the shaft seats, and the U-shaped upper arm is rotationally matched with the shaft seats and the U-shaped upper arm through a guide rod so as to drive the U-shaped upper arm rotationally connected with the top end of the T-shaped lower arm to synchronously rotate, so that the T-shaped lower arm and the U-shaped upper arm are unfolded;
step two: when the bow is unfolded, the bow head rises to be in contact with the bow net, the pneumatic motor on the power shell drives the driving wide teeth to rotate, the rotating shaft is driven to rotate in the sleeve seat through the rotation of the driven narrow teeth which are meshed with the driving wide teeth, the position of the bow head is adjusted, the top side of the bow head is ensured to be in a horizontal state, the pneumatic motor stops working at the moment, and the position of the bow head is limited through the meshing of the driving wide teeth and the driven narrow teeth;
step three: when the bow rises and bow net contact, the lifter moved down along the gag lever post through the guide slot this moment, and the stop ring compressed first spring, and elastic deformation through the second spring makes bow and bow net elastic contact, when urban rail transit vehicle removed to appear rocking simultaneously, cover seat and pivot relative slip, and the translation is gone up at the wide tooth of initiative to driven narrow tooth this moment, compresses and stretches first spring, plays the cushioning effect through the elastic deformation of first spring.
The beneficial effects of the invention are: when the bow head rises to be in contact with the bow net, the lifting rod moves downwards along the limiting rod through the guide groove, the limiting ring compresses the first spring, the bow head is in elastic contact with the bow net through elastic deformation of the second spring, meanwhile, when the urban rail transit vehicle moves and shakes, the sleeve seat and the rotating shaft slide relatively, the driven narrow teeth translate on the driving wide teeth at the moment, the first spring is compressed and stretched, the buffering effect is achieved through the elastic deformation of the first spring, the bow head part is guaranteed to be in contact with the bow net all the time when the vehicle moves, and in translation, the sliding friction between the bow head and the bow net is slowed down through the relative buffering sliding of the sleeve seat and the rotating shaft, and the service life of the bow head is prolonged;
the pneumatic motor on the power shell drives the driving wide teeth to rotate, the driven narrow teeth are rotated through meshing, then the rotating shaft is driven to rotate in the sleeve seat, the position of the bow head is adjusted, the top side of the bow head is ensured to be in a horizontal state, the pneumatic motor stops working at the moment, the position of the bow head is limited through the meshing of the driving wide teeth and the driven narrow teeth, the bow head is ensured to be always in a horizontal position, the bow net is separated when the vehicle moves, and stable current supply is realized.
Drawings
FIG. 1 is a schematic view of an overall side structure of the present invention;
FIG. 2 is another schematic view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of the adjustment housing and power housing of the present invention;
fig. 4 is a cross-sectional view of the barrel and lifter of the present invention.
Illustration of the drawings:
1. a chassis; 2. an insulator; 3. a shaft seat; 4. a T-shaped lower arm; 5. connecting lugs; 6. a pneumatic rod; 7. a U-shaped upper arm; 8. a guide bar; 9. a sleeve seat; 10. a rotating shaft; 11. a support arm; 12. a cylinder body; 13. a lifting rod; 14. a bow head; 15. an adjustment housing; 16. a power shell; 17. a pneumatic motor; 18. driving wide teeth; 19. driven narrow teeth; 20. a first spring; 21. a limiting ring; 22. a guide groove; 23. a limiting rod; 24. a second spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific examples are given below.
Referring to fig. 1 to 4, a pantograph for urban rail transit vehicles comprises an underframe 1, a T-shaped lower arm 4, a U-shaped upper arm 7 and a pantograph head 14, insulators 2 are installed at four corners of the bottom side of the underframe 1, the middle of the top side of the underframe 1 is rotatably installed at two ends of the T-shaped lower arm 4, the top end of the T-shaped lower arm 4 is rotatably installed at the bottom end of the U-shaped upper arm 7, the bottom end of the U-shaped upper arm 7 and one end of the underframe 1 are rotatably installed at two ends of a guide rod 8 respectively, a sleeve seat 9 is installed at the top end of the U-shaped upper arm 7, a rotating shaft 10 is rotatably installed inside the sleeve seat 9, support arms 11 are installed at two ends of the rotating shaft 10, cylinder bodies 12 are installed at two ends of the support arms 11 respectively, lifting rods 13 are movably installed at the inside of the cylinder bodies 12 in a penetrating manner, and the lifting rods 13 at two ends are connected with two ends of the pantograph head 14 respectively.
As an implementation mode of the invention, shaft seats 3 are symmetrically installed on the top of an underframe 1, two ends of a T-shaped lower arm 4 are connected with the shaft seats 3 through bearings, a connecting lug 5 is arranged on the outer side of the middle of the T-shaped lower arm 4, the connecting lug 5 is rotatably connected with a telescopic end of a pneumatic rod 6, one end of the pneumatic rod 6 is rotatably connected with the underframe 1, the connecting lug 5 is connected with the pneumatic rod 6 through an inserting shaft, one end of the pneumatic rod 6 is connected with a first lug seat of the underframe 1 through an inserting shaft, a connecting shaft is installed inside the bottom end of the U-shaped upper arm 7, the top end of the T-shaped lower arm 4 is connected with a shaft sleeve sleeved on the outer side of the connecting shaft, second lug seats are installed at the bottom end of the U-shaped upper arm 7 and the underframe 1, two ends of a guide rod 8 are respectively connected with the second lug seats through inserting shafts, so as to realize the rotary connection of each component, the T-shaped lower arm 4 is driven to rotate between the shaft seats 3 through the telescopic action of the connecting lug 5 through the pneumatic rod 6, the T-shaped lower arm 4 is driven to be rotatably matched with the shaft seats and the U-shaped upper arm 7 through the guide rod 8, so as to drive the U-shaped lower arm 7 rotatably connected with the top end of the shaft seats, and further to synchronously rotate, so as to realize the folding and the folding of the T-shaped lower arm 4.
As an embodiment of the present invention, an adjusting shell 15 is disposed outside the middle of the socket 9, a power shell 16 is disposed outside the adjusting shell 15, a pneumatic motor 17 is mounted outside the power shell 16, an output end of the pneumatic motor 17 is located in the power shell 16 and is mounted with a driving wide tooth 18, a driven narrow tooth 19 is mounted outside the rotating shaft 10 and inside the power shell 16, a width of the driven narrow tooth 19 is one fifth of a length of the driving wide tooth 18, first springs 20 are respectively sleeved on two ends of the driven narrow tooth 19 outside the rotating shaft 10, the pneumatic motor 17 drives the driving wide tooth 18 to rotate, the rotating shaft 10 is driven to rotate in the socket 9 by rotating with the meshed driven narrow tooth 19, a position of the bow 14 is adjusted, a top side of the bow 14 is ensured to be in a horizontal state, the socket 9 and the rotating shaft 10 slide relative to each other, at this time, the driven narrow tooth 19 translates on the driving wide tooth 18 to compress and stretch the first spring 20, and a buffering effect is achieved by elastic deformation of the first spring 20.
As an embodiment of the present invention, a limiting rod 23 is vertically installed inside the cylinder 12, a second spring 24 is sleeved outside the limiting rod 23, a guide groove 22 is formed at the bottom end of the lifting rod 13, the limiting rod 23 is located in the guide groove 22, a limiting ring 21 is arranged outside the bottom end of the lifting rod 13, the limiting ring 21 is connected with the top end of the second spring 24, the lifting rod 13 moves down along the limiting rod 23 through the guide groove 22, the limiting ring 21 compresses the first spring 20, and the bow head 14 is elastically contacted with the bow net through the elastic deformation of the second spring 24.
As an embodiment of the present invention, the pantograph specifically operates as follows:
the method comprises the following steps: when the underframe 1 is installed on the top side of an urban rail transit vehicle through the insulator 2, the underframe contracts through the air pressure rod 6 to act on the connecting lug 5 so as to drive the T-shaped lower arm 4 to rotate between the shaft seats 3, and the T-shaped lower arm 4 is in running fit with the shaft seats 3 and the U-shaped upper arm 7 through the guide rod 8 so as to drive the U-shaped upper arm 7 rotationally connected with the top end of the T-shaped lower arm 4 to synchronously rotate, so that the T-shaped lower arm 4 and the U-shaped upper arm 7 are unfolded;
step two: when the bow head 14 is unfolded, the bow head rises to be in contact with a bow net, the pneumatic motor 17 on the power shell 16 drives the driving wide teeth 18 to rotate, the rotating shaft 10 is driven to rotate in the sleeve seat 9 through rotating with the meshed driven narrow teeth 19, the position of the bow head 14 is adjusted, the top side of the bow head 14 is ensured to be in a horizontal state, the pneumatic motor 17 stops working, and the position of the bow head 14 is limited through meshing of the driving wide teeth 18 and the driven narrow teeth 19;
step three: when the bow 14 rises and contacts with the bow net, lifter 13 moves down along gag lever post 23 through guide slot 22 this moment, and gag lever post 21 compresses first spring 20, and elastic deformation through second spring 24 makes bow 14 and bow net elastic contact, and when city rail transit vehicle removed the appearance and rocks simultaneously, cover seat 9 and pivot 10 relative slip, and from the last translation of narrow tooth 19 at initiative broadtooth 18 this moment, compress and stretch first spring 20, play the cushioning effect through the elastic deformation of first spring 20.
When the bow 14 rises to be in contact with a bow net, the lifting rod 13 moves downwards along the limiting rod 23 through the guide groove 22, the limiting ring 21 compresses the first spring 20, the bow 14 is in elastic contact with the bow net through elastic deformation of the second spring 24, meanwhile, when the urban rail transit vehicle moves and shakes, the sleeve seat 9 and the rotating shaft 10 slide relatively, the driven narrow teeth 19 translate on the driving wide teeth 18 at the moment, the first spring 20 is compressed and stretched, a buffering effect is achieved through elastic deformation of the first spring 20, the bow 14 is guaranteed to be in contact with the bow net all the time when the vehicle moves, and in translation, sliding friction between the bow 14 and the bow net is relieved through relative buffering sliding of the sleeve seat 9 and the rotating shaft 10, and the service life of the bow 14 is prolonged;
the pneumatic motor 17 through on the power shell 16 drives the wide tooth 18 of initiative rotatory, it is rotatory through 19 driven narrow teeth with the meshing, and then drive pivot 10 at cover seat 9 internal rotations, adjust bow 14's position, guarantee that bow 14 top side is in the horizontality, pneumatic motor 17 stop work this moment, the meshing through wide tooth 18 of initiative and driven narrow tooth 19 is injectd bow 14's position, guarantee bow 14 is in horizontal position all the time, with the bow net separation when avoiding the vehicle motion, realize that the current supply is stable.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The pantograph for the urban rail transit vehicles is characterized by comprising an underframe (1), T-shaped lower arms (4), U-shaped upper arms (7) and a pantograph head (14), wherein insulators (2) are installed at four corners of the bottom side of the underframe (1), the middle of the top side of the underframe (1) is rotatably installed at two ends of the T-shaped lower arms (4), the top end of each T-shaped lower arm (4) is rotatably installed at the bottom end of the U-shaped upper arm (7), the bottom end of each U-shaped upper arm (7) and one end of the underframe (1) are rotatably installed at two ends of a guide rod (8) respectively, a sleeve seat (9) is installed at the top end of each U-shaped upper arm (7), a rotating shaft (10) is rotatably installed in the sleeve seat (9), supporting arms (11) are installed at two ends of the rotating shaft (10), cylinder bodies (12) are installed at two ends of the supporting arms (11) respectively, a lifting rod (13) is movably installed in the cylinder bodies (12), and the lifting rods (13) are connected with two ends of the pantograph head (14) respectively;
cover seat (9) middle part outside is provided with adjusts shell (15), it is provided with power shell (16) to adjust shell (15) outside, pneumatic motor (17) are installed in power shell (16) outside, and pneumatic motor (17) output is located power shell (16) and installs initiative wide tooth (18), pivot (10) outside just is located power shell (16) internally mounted and has driven narrow tooth (19), and the width of driven narrow tooth (19) is the fifth of the length of initiative wide tooth (18), pivot (10) outside just is located driven narrow tooth (19) both ends and overlaps respectively and is equipped with first spring (20).
2. The pantograph for urban rail transit vehicles according to claim 1, wherein the axle seats (3) are symmetrically installed at the top of the underframe (1), two ends of the T-shaped lower arm (4) are in bearing connection with the axle seats (3), the connecting lug (5) is arranged on the outer side of the middle part of the T-shaped lower arm (4), the connecting lug (5) is rotatably connected with the telescopic end of the pneumatic rod (6), and one end of the pneumatic rod (6) is rotatably connected with the underframe (1).
3. Pantograph for urban rail transit vehicles according to claim 2, characterized in that said coupling lug (5) is connected to the pneumatic rod (6) by means of an insert shaft, said pneumatic rod (6) being connected at one end to the first lug seat of the underframe (1) by means of an insert shaft.
4. The pantograph for urban rail transit vehicles according to claim 1, wherein a connecting shaft is mounted inside the bottom end of the U-shaped upper arm (7), and the top end of the T-shaped lower arm (4) is connected with a shaft sleeve sleeved outside the connecting shaft.
5. The pantograph for urban rail transit vehicles according to claim 1, wherein the bottom end of the U-shaped upper arm (7) and the underframe (1) are respectively provided with a second ear seat, and two ends of the guide rod (8) are respectively connected with the second ear seats through inserting shafts.
6. The pantograph for urban rail transit vehicles according to claim 1, wherein a limiting rod (23) is vertically installed inside the barrel (12), a second spring (24) is sleeved outside the limiting rod (23), a guide groove (22) is formed in the bottom end of the lifting rod (13), the limiting rod (23) is located in the guide groove (22), a limiting ring (21) is arranged outside the bottom end of the lifting rod (13), and the limiting ring (21) is connected with the top end of the second spring (24).
7. Pantograph for urban rail transit vehicles according to any one of claims 1-6, characterized in that it is operated in the following specific steps:
the method comprises the following steps: the underframe (1) is arranged on the top side of an urban rail transit vehicle through an insulator (2), and when the underframe is used, the air pressure rod (6) contracts to act on the connecting lug (5), so that the T-shaped lower arm (4) is driven to rotate between the shaft seats (3), and the guide rod (8) is in running fit with the shaft seats (3) and the U-shaped upper arm (7), so that the U-shaped upper arm (7) rotationally connected with the top end of the T-shaped lower arm (4) is driven to synchronously rotate, and the T-shaped lower arm (4) and the U-shaped upper arm (7) are unfolded;
step two: when the bow is unfolded, the bow (14) rises to be in contact with the bow net, the pneumatic motor (17) on the power shell (16) drives the driving wide teeth (18) to rotate, the driven narrow teeth (19) which are meshed with the driving wide teeth rotate to further drive the rotating shaft (10) to rotate in the sleeve seat (9), the position of the bow (14) is adjusted, the top side of the bow (14) is ensured to be in a horizontal state, the pneumatic motor (17) stops working at the moment, and the position of the bow (14) is limited by the meshing of the driving wide teeth (18) and the driven narrow teeth (19);
step three: when bow (14) rises and contacts with the bow net, lifter (13) move down along gag lever post (23) through guide slot (22) this moment, spacing ring (21) compress first spring (20), elastic deformation through second spring (24) makes bow (14) and bow net elastic contact, when urban rail transit vehicle removes to appear rocking simultaneously, cover seat (9) and pivot (10) relative slip, from the translation of narrow tooth (19) on initiative wide tooth (18) this moment, compress and stretch first spring (20), elastic deformation through first spring (20) plays the cushioning effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812539.7A CN113428011B (en) | 2021-07-19 | 2021-07-19 | Pantograph for urban rail transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812539.7A CN113428011B (en) | 2021-07-19 | 2021-07-19 | Pantograph for urban rail transit vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113428011A CN113428011A (en) | 2021-09-24 |
| CN113428011B true CN113428011B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110812539.7A Active CN113428011B (en) | 2021-07-19 | 2021-07-19 | Pantograph for urban rail transit vehicle |
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| CN (1) | CN113428011B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114228465B (en) * | 2021-12-16 | 2023-10-27 | 陈延龙 | Electric oil mixed truck for long-distance freight transportation and matched power system thereof |
| CN114194034A (en) * | 2021-12-17 | 2022-03-18 | 北京中车赛德铁道电气科技有限公司 | Pantograph bow horizontal keeping structure based on flexible connection |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101272135B1 (en) * | 2011-10-11 | 2013-06-07 | 재단법인 한국계면공학연구소 | Pantagraph for electric rail car |
| CN204586529U (en) * | 2015-02-06 | 2015-08-26 | 重庆恒通客车有限公司 | Electrodynamic type single armed is two by stream pantograph |
| CN208947102U (en) * | 2018-10-11 | 2019-06-07 | 兰州交通大学 | A kind of block of bow collector of electric locomotive lifting device |
| CN209521547U (en) * | 2019-02-22 | 2019-10-22 | 兰州交通大学 | A kind of pantograph with stable contact pressure |
| CN111231680A (en) * | 2020-01-15 | 2020-06-05 | 西南交通大学 | Rotatable high-speed train pantograph device |
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| CN113428011A (en) | 2021-09-24 |
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