CN112224028A - Intelligent adjusting device for pantograph pneumatic guide plate - Google Patents
Intelligent adjusting device for pantograph pneumatic guide plate Download PDFInfo
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- CN112224028A CN112224028A CN202011070892.4A CN202011070892A CN112224028A CN 112224028 A CN112224028 A CN 112224028A CN 202011070892 A CN202011070892 A CN 202011070892A CN 112224028 A CN112224028 A CN 112224028A
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- pantograph
- guide plate
- pneumatic
- actuating mechanism
- pneumatic guide
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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
-
- 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
- B60L5/20—Details of contact bow
-
- 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
- B60L5/32—Devices for lifting and resetting the collector using fluid pressure
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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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention provides an intelligent adjusting device for a pantograph pneumatic guide plate, belonging to the technical field of high-speed trains and comprising a pantograph upper frame beam, a pantograph pneumatic guide plate, a hollow rotary actuating mechanism and an external power supply and signal module; the pantograph pneumatic guide plate is nested on the pantograph upper frame cross beam, the end part of the pantograph pneumatic guide plate is connected with the hollow rotary actuating mechanism, and the hollow rotary actuating mechanism is connected with an external power supply and an external signal output end. The pantograph pneumatic guide plate is designed based on pneumatic optimization, and the rotation angle of the pantograph pneumatic guide plate is intelligently adjusted through the hollow rotary actuating mechanism connected with the pantograph pneumatic guide plate according to the running state of the pantograph so as to dynamically compensate the pneumatic force difference of the pantograph under different line conditions and obtain stable pantograph-catenary current collection quality. The invention has simple design, convenient installation, lower cost and strong applicability.
Description
Technical Field
The invention belongs to the technical field of high-speed trains, and particularly relates to an intelligent adjusting device for a pneumatic guide plate of a pantograph.
Background
The pantograph is used for completing high-voltage current collection by contacting a pantograph head carbon sliding plate with a contact network, and reliable contact between pantograph nets is a basic condition for ensuring good current collection when an electric locomotive runs at a high speed. Due to the continuous improvement of the running speed of the high-speed train, the initial static contact force set by the pantograph cannot well ensure the current collection quality; when the pantograph is in an opening working condition to operate, the upper frame is subjected to pneumatic lifting force, and the lower arm is subjected to downward air pressure; the opposite is true in the closed operating mode. Due to the working characteristics of the pantograph hinge four-bar mechanism, the contact pressure conduction coefficient of the lower arm is larger than that of the upper frame, so that the pantograph-catenary contact force is smaller than a standard value under the opening working condition of the pantograph and is larger than the standard value under the closing working condition of the pantograph. When the train runs at a high speed, all parts of the pantograph are acted by pneumatic force, and the air-dynamic characteristic of the pantograph can be effectively improved by adopting the guide plate. The guide plate adjusts the dynamic contact force of the pantograph-catenary when the pantograph runs at high speed under the action of pneumatic power, so that the current collection quality is improved. Under the high-speed running state of the train, the resultant force of the aerodynamic force received by the pantograph jib, the carbon slide plate, the flow guide wing and the like can be decomposed into a vertical component and a horizontal component, the horizontal component has small influence on the pantograph-catenary contact force and the current receiving force and can be ignored, and the vertical component, namely the lifting force, has a large direct effect on the pantograph-catenary dynamic contact force.
The traditional pantograph pneumatic guide plate is mainly installed on a pantograph head of a pantograph, and due to the limitation of the weight of the pantograph head, the size of the pantograph pneumatic guide plate cannot be designed to be too large, so that the pneumatic compensation or adjustment range is limited; the direction of the traditional pantograph pneumatic guide plate cannot be dynamically adjusted once the traditional pantograph pneumatic guide plate is installed, and particularly under the high-speed operation condition, the traditional control device cannot adjust and feed back the change of the operation state in time, so that the compensation effect is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the intelligent adjusting device for the pneumatic guide plate of the pantograph provided by the invention is used for dynamically compensating the aerodynamic force difference of the pantograph under different line conditions so as to obtain stable pantograph-catenary current collection quality.
In order to achieve the above purpose, the invention adopts the technical scheme that:
the scheme provides an intelligent adjusting device for a pantograph pneumatic guide plate, which comprises a pantograph upper frame cross beam, a pantograph pneumatic guide plate, a hollow rotary actuating mechanism and an external power supply and signal module; the pantograph pneumatic guide plate is nested on the pantograph upper frame cross beam, the end part of the pantograph pneumatic guide plate is connected with the hollow rotary actuating mechanism, and the hollow rotary actuating mechanism is connected with an external power supply and an external signal output end.
Further, the pneumatic flow guide plate of pantograph size is: the height is 45mm, the length is 400mm, the upper top surface is 120mm wide, and the lower bottom surface is 30mm wide.
Still further, the aerodynamic lift force of pantograph aerodynamic deflector compensation is 20N-190N.
Still further, the pantograph pneumatic deflector may be replaced with carbon fiber.
Still further, the rotatory mechanism that actuates of cavity includes the main tank body, fixed connection in the box lid of main tank body upper end, set up in output fluted disc in the main tank body, set up in box lid top and the ring flange of being connected with the pneumatic guide plate of pantograph, set up in the motor base of main tank below, set up in motor that is connected on the motor base and with external power source and external signal's output, by motor control is rotatory and with output fluted disc matched with drive shaft, with output fluted disc matched with rolling member, set up the bearing frame that plays supporting role between motor base and box lid, be fixed in the epaxial tapered roller bearing of drive and supply the fixed rotatory cross roller bearing of output fluted disc.
Still further, the axis of drive shaft is parallel with the axis of output fluted disc.
Still further, the drive shaft includes a journal portion and a shaft body portion, the journal portion having a diameter greater than a diameter of the shaft body portion; the shaft neck part extends into the main box body, and the shaft body part extends into the motor base.
Furthermore, an inward-concave annular groove is formed in the outer peripheral wall of the shaft neck, and a plurality of rolling pieces which rotate and are matched with the output fluted disc are uniformly distributed on the inner periphery of the annular groove.
And furthermore, the output fluted disc is connected with the connecting flange disc through a bolt, and the connecting flange disc is matched with the pantograph pneumatic guide plate through a shaft hole.
The invention has the beneficial effects that:
(1) the pantograph pneumatic guide plate based on aerodynamic optimization design is adopted, the rotation angle of the pantograph pneumatic guide plate is intelligently adjusted through the rotary actuating mechanism connected with the pantograph pneumatic guide plate according to the running state of the pantograph, the aerodynamic difference of the pantograph under different line conditions is dynamically compensated, and stable pantograph-catenary current collection quality is obtained.
(2) The pneumatic guide plate of the pantograph is determined by pneumatic optimization design analysis of different lengths, heights and widths, has a proper height-width ratio, can provide a pneumatic compensation range suitable for the pantograph, and has a small and compact structure.
(3) According to the invention, the pneumatic guide plate of the pantograph is arranged on the upper frame beam of the pantograph, the influence of the self weight of the device is not obvious as that of the device arranged on the pantograph head, so that the size can be designed to be larger, the pneumatic compensation or adjustment range is obviously improved, and the effect is better.
(4) On the basis of the optimized design of the pantograph pneumatic guide plate, the rotation angle of the pantograph pneumatic guide plate can be intelligently adjusted through the rotating mechanism connected with the pantograph pneumatic guide plate so as to dynamically compensate aerodynamic force differences under different lines and running conditions (tunnel and open line, opening and closing, speed, working height and the like), and the pantograph pneumatic guide plate has better adaptability.
(5) Compared with the traditional lifting force compensation device arranged on the pantograph base pantograph lifting device, the device is arranged on the upper frame of the pantograph, so that the compensation transmission path of the dynamic response of the pantograph head is closer, the response time is shorter, the frequency is higher, and the compensation or adjustment effect is better.
(6) Compared with the traditional aerodynamic force fixed compensation mode, the method can be based on the signal input of the pantograph operating state, and comprises the following steps: the method comprises the steps of providing information such as tunnels, open lines, openings, closed openings, speed and working height, providing the direction of a pantograph pneumatic guide plate matched with the current state through a pneumatic performance optimization expert system, outputting a control signal, intelligently adjusting the rotation angle of the pantograph pneumatic guide plate through a connected actuating mechanism, and dynamically compensating aerodynamic force difference of the pantograph under different line conditions to obtain stable pantograph-catenary current collection quality. The pneumatic performance optimization expert system has upgrading and self-learning functions, and can access more comprehensive state parameter signals to obtain a better control effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the installation of the pantograph pneumatic deflector of the present invention.
Fig. 3 is a schematic structural diagram of a pantograph pneumatic deflector in this embodiment.
Fig. 4 is a schematic view of the aerodynamic lift provided by the pantograph aerodynamic deflector at different angles in this embodiment.
FIG. 5 is a schematic view of the hollow rotary actuating mechanism in the present embodiment.
Fig. 6 is a schematic view of a partial installation of the pantograph pneumatic deflector of the present embodiment.
Fig. 7 is a schematic view illustrating a connection between a pneumatic deflector of a pantograph and a flange plate in this embodiment.
Fig. 8 is a schematic diagram of the motor control of the hollow rotary actuator according to the present embodiment.
Fig. 9 is a schematic diagram illustrating an automatic adjustment principle of the pantograph pneumatic deflector in the embodiment.
The pantograph type power supply control device comprises a 1-pantograph upper frame cross beam, a 2-pantograph pneumatic guide plate, a 3-hollow rotary actuating mechanism, a 301-main box body, a 302-box body cover, a 303-output fluted disc, a 304-flange plate, a 305-motor base, a 306-driving shaft, a 307-rolling piece, a 308-bearing seat, a 309-tapered roller bearing, a 310-bolt, a 311-crossed roller bearing, a 312-motor, and a 4-external power supply and signal module.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
Examples
The invention provides an automatic pantograph pneumatic guide plate adjusting device for compensating pneumatic characteristic difference of a pantograph under different line conditions, which adopts a pantograph pneumatic guide plate based on pneumatic power optimization design, intelligently adjusts the rotation angle of the pantograph pneumatic guide plate through a rotary actuating mechanism connected with the pantograph pneumatic guide plate according to the running state of the pantograph so as to dynamically compensate the pneumatic power difference of the pantograph under different line conditions and obtain stable pantograph-catenary current collection quality, and comprises a pantograph upper frame beam 1, a pantograph pneumatic guide plate 2, a hollow rotary actuating mechanism 3 and an external power supply and signal module 4, wherein the pantograph upper frame beam is provided with a plurality of pantograph upper frame beams; the pantograph pneumatic guide plate 2 is nested on the pantograph upper frame cross beam 1, the end part of the pantograph pneumatic guide plate 2 is connected with the hollow rotary actuating mechanism 3, and the hollow rotary actuating mechanism 3 is connected with an external power supply and an output end of an external signal 4.
As shown in fig. 3, the dimensions of the pantograph pneumatic deflector 2 are: height 45mm, long 400mm, go up the wide 120mm of top surface, go to the bottom surface wide 30mm, this type pantograph pneumatic guide plate is confirmed through the pneumatic optimal design analysis to different length, height and width, has suitable height and width ratio, can provide the aerodynamic force compensation scope who is applicable to the pantograph, and the structure is small and exquisite, compact moreover. As shown in fig. 4, the pantograph pneumatic deflector 2 compensates the aerodynamic lift of 20N-190N, and the pantograph pneumatic deflector 2 can be replaced by carbon fiber.
As shown in fig. 5 to 6, the hollow rotary actuating mechanism 3 includes a main housing 301, a housing cover 302 fixedly connected to an upper end of the main housing 301, and an output fluted disc 303 disposed in the main housing 301, as shown in fig. 7, a flange 304 disposed above the case cover 302 and connected to the pantograph pneumatic baffle 2, a motor base 305 disposed below the main body case 301, a motor 312 disposed on the motor base 305 and connected to an external power source and an output end of the external signal 4, a driving shaft 306 controlled to rotate by the motor 312 and engaged with the output toothed disc 303, a rolling member 307 engaged with the output toothed disc 303, a bearing seat 308 disposed between the motor base 305 and the case cover 302 for supporting, a tapered roller bearing 309 fixed to the driving shaft 306, and a cross roller bearing 311 for fixing and rotating the output toothed disc 303.
In this embodiment, the motor 311 used in the hollow rotation actuating mechanism 3 is a stepping motor. The stepping motor can convert a pulse signal into angular displacement, namely, a pulse is given, and the stepping motor rotates by an angle, so that the control precision is high, and the stepping motor is widely applied to various automatic control systems. The driving and controlling of the stepping motor are mainly through the digital quantity of the driving controller, the magnitude of the rotating speed is determined by the externally added pulse frequency, the magnitude of the voltage is irrelevant to the speed of the rotating speed and is only relevant to the output torque of the motor 311, and the controller of the stepping motor at present is mainly composed of a single chip microcomputer and a special integrated chip. The driving controller of the stepping motor mainly comprises a pulse signal generating circuit, a pulse signal distributing circuit, a power amplifying circuit and the like, and the structure of the driving controller is shown in fig. 8.
In the embodiment, the whole device is installed on a pantograph upper frame beam 1, a pantograph pneumatic guide plate 2 is nested on the pantograph upper frame beam 1, the end part of the pantograph pneumatic guide plate 2 is connected with a hollow rotary actuating mechanism 3, and the rotation around the axial direction of the pantograph upper frame beam 1 is realized under the driving of a motor 311 through the rotation of a bearing of the hollow rotary actuating mechanism 3; the external power and signal module 5 supplies power to the apparatus, receives status parameter signals from the outside, and supplies the status parameter signals to the hollow rotary actuator 3 and the motor 311 after processing. The pantograph pneumatic guide plate 2 based on aerodynamic optimization design is adopted, the rotation angle of the pantograph pneumatic guide plate 2 is intelligently adjusted through the hollow rotary actuating mechanism 3 connected with the pantograph pneumatic guide plate 2 according to the running state of a pantograph, aerodynamic difference of the pantograph under different line conditions is dynamically compensated, and stable pantograph-catenary current collection quality is obtained.
In this embodiment, the state parameter information of the pantograph is acquired through the pantograph state sensing system (additional system) or the train running state system, such as the information of a tunnel, an open line, an opening, a closing, a speed, a working height, a contact force and the like, as shown in fig. 9, the angle of the pneumatic pantograph deflector matched with the current state is given through the pneumatic performance optimization expert system, a control signal is output, the rotation angle of the pneumatic pantograph deflector is intelligently adjusted through the connected rotary actuating mechanism, the aerodynamic force difference of the pantograph under different line conditions is dynamically compensated, so as to acquire stable pantograph-catenary current collection quality, which includes two working modes:
(1) presetting an automatic adjusting mode: determining the current state information of the pantograph running speed, opening or closing, working height, tunnel or open line and the like of the train by accessing kilometer marks (mileage) and speed information of a train running state system; inputting the state information of the pantograph into a pneumatic performance optimization expert system, determining the pneumatic lift of the current running state, and giving out the pneumatic lift matched with the target function (pneumatic reference curve) according to the target function, thereby determining the optimal windward angle of the pneumatic guide plate 2 of the pantograph; on the basis, the rotation angle of the pantograph pneumatic guide plate 2 is adjusted through the connected hollow rotary actuating mechanism 3 so as to dynamically compensate the aerodynamic force difference of the pantograph in different running states and obtain stable pantograph-catenary current collection quality.
(2) And (3) real-time automatic adjustment mode: acquiring real-time state information such as the running speed, the opening or the closing, the working height, the tunnel or the open line and the contact force of the pantograph through a pantograph state sensing/monitoring system (an additional system); inputting the state information of the pantograph into a pneumatic performance optimization expert system, determining the pneumatic lift of the current running state, and giving out the pneumatic lift matched with the target function (pneumatic reference curve) according to the target function, thereby determining the optimal windward angle of the pneumatic guide plate 2 of the pantograph; on the basis, the rotation angle of the pantograph pneumatic guide plate 2 is adjusted through the connected hollow rotary actuating mechanism 3 so as to dynamically compensate the aerodynamic force difference of the pantograph in different running states and obtain stable pantograph-catenary current collection quality.
Claims (9)
1. An intelligent adjusting device for a pantograph pneumatic guide plate is characterized by comprising a pantograph upper frame beam (1), a pantograph pneumatic guide plate (2), a hollow rotary actuating mechanism (3) and an external power supply and signal module (4); the pantograph pneumatic guide plate (2) is nested on the pantograph upper frame cross beam (1), the end part of the pantograph pneumatic guide plate (2) is connected with the hollow rotary actuating mechanism (3), and the hollow rotary actuating mechanism (3) is connected with an external power supply and an output end of an external signal (4).
2. The intelligent pantograph pneumatic deflector adjustment device according to claim 1, wherein the pantograph pneumatic deflector (2) has the dimensions: the height is 45mm, the length is 400mm, the upper top surface is 120mm wide, and the lower bottom surface is 30mm wide.
3. The intelligent pantograph pneumatic deflector adjustment device according to claim 2, wherein the pantograph pneumatic deflector (2) compensates for a pneumatic lift of 20N-190N.
4. The intelligent pantograph pneumatic deflector adjustment device according to claim 3, wherein the pantograph pneumatic deflector (2) is replaceable with carbon fiber.
5. The intelligent adjustment device for the pantograph pneumatic deflector according to claim 1, wherein the hollow rotary actuating mechanism (3) comprises a main box (301), a box cover (302) fixedly connected to an upper end of the main box (301), an output fluted disc (303) arranged in the main box (301), a flange (304) arranged above the box cover (302) and connected to the pantograph pneumatic deflector (2), a motor base (305) arranged below the main box (301), a motor (312) arranged on the motor base (305) and connected to an output end of an external power source and an external signal (4), a driving shaft (306) controlled by the motor (312) to rotate and matched with the output fluted disc (303), a rolling member (307) matched with the output fluted disc (303), a bearing seat (308) arranged between the motor base (305) and the box cover (302) for supporting, and a bearing seat (308) arranged between the motor base (305) and the box cover (302), A tapered roller bearing (309) fixed on the driving shaft (306) and a crossed roller bearing (311) for fixing and rotating the output fluted disc (303).
6. The intelligent pantograph pneumatic deflector adjustment device according to claim 5, wherein the central axis of the drive shaft (306) is parallel to the central axis of the output toothed disc (303).
7. The pantograph pneumatic deflector smart adjustment device of claim 6, wherein the drive shaft (306) comprises a journal portion and a shaft body portion, the journal portion having a diameter greater than a diameter of the shaft body portion; the shaft neck part extends into the main box body (301), and the shaft body part extends into the motor base (305).
8. The intelligent adjusting device for the pneumatic deflector of the pantograph according to claim 7, wherein an annular groove is formed in the outer peripheral wall of the shaft neck, and a plurality of rolling members (307) which rotate and are matched with the output fluted disc (303) are uniformly distributed on the inner periphery of the annular groove.
9. The intelligent pantograph pneumatic deflector adjustment device according to claim 8, wherein the output fluted disc (303) and the connecting flange (304) are connected through a bolt (10), and the connecting flange (304) and the pantograph pneumatic deflector (2) are matched through a shaft hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011070892.4A CN112224028B (en) | 2020-10-09 | 2020-10-09 | Intelligent adjusting device for pantograph pneumatic guide plate |
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| CN202011070892.4A CN112224028B (en) | 2020-10-09 | 2020-10-09 | Intelligent adjusting device for pantograph pneumatic guide plate |
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| CN112224028A true CN112224028A (en) | 2021-01-15 |
| CN112224028B CN112224028B (en) | 2022-10-21 |
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Cited By (1)
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| CN113232512A (en) * | 2021-06-08 | 2021-08-10 | 北京中车赛德铁道电气科技有限公司 | Pneumatic adjusting mechanism for high-speed pantograph |
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| CN113232512A (en) * | 2021-06-08 | 2021-08-10 | 北京中车赛德铁道电气科技有限公司 | Pneumatic adjusting mechanism for high-speed pantograph |
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| CN112224028B (en) | 2022-10-21 |
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