CN111267624B

CN111267624B - Intelligent pantograph

Info

Publication number: CN111267624B
Application number: CN202010156927.XA
Authority: CN
Inventors: 高国强; 李豪; 魏文赋; 杨泽锋; 陈琦琛; 吴广宁
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2021-05-04
Anticipated expiration: 2040-03-09
Also published as: CN111267624A

Abstract

The invention discloses an intelligent pantograph, which relates to the technical field of railway electric locomotives and comprises an insulating upper arm, a wing-shaped pantograph head, a controller, an acceleration sensor, a pressure sensor and a temperature sensor, wherein the wing-shaped pantograph head is provided with a main wing flap, an auxiliary wing flap and a sliding plate and is connected above the insulating upper arm through an intelligent lifting support frame; a main steering engine and an auxiliary steering engine are arranged in the wing-shaped bow head; the rotation portion of main steering wheel is connected with main wing flap, and the rotation portion of vice steering wheel is connected with vice wing flap, and intelligence lift support frame, main steering wheel and vice steering wheel all are connected with the controller signal. According to the invention, the upper and lower heights of the wing-shaped bow head can be adjusted through the intelligent lifting support frame, the included angle between the main wing flap and the horizontal plane can be adjusted through the main steering engine, the included angle between the auxiliary wing flap and the horizontal plane can be adjusted through the auxiliary steering engine, and the adjustment is based on the pantograph state information detected by the existing sensor, so that the active adjustment of the pantograph state is realized.

Description

Intelligent pantograph

Technical Field

The invention relates to the technical field of railway electric locomotives, in particular to an intelligent pantograph.

Background

In a modern electrified railway, an electric locomotive needs to be in contact with a contact net through a pantograph at the top of the locomotive in the running process, so that electric energy transmission is realized. However, during the operation of the train, due to the vibration of the pantograph head, the irregularity of the train operation track and the irregularity of the contact line, the pantograph and the contact line are easily off-line, and the arcing phenomenon occurs, so that the wear of the pantograph slide plate is aggravated, and the service life of the pantograph slide plate is shortened.

Because the pantograph is in a high-speed motion state all the time in operation, influenced by its structure, break down easily in the operation process, when the pantograph slightly harms, if unable in time discovery, will make the pantograph damage constantly enlarge, will lead to bow net system to go wrong finally, on the other hand, current pantograph can't adjust operating condition in real time, even install on-line monitoring system on the electric locomotive, also can only send the fault instruction to the control cabinet, can't prevent to damage further expansion, the life of pantograph has significantly reduced from this.

Disclosure of Invention

The present invention aims to provide an intelligent pantograph which can alleviate the above problems.

In order to alleviate the above problems, the technical scheme adopted by the invention is as follows:

the invention provides an intelligent pantograph which comprises an insulating upper arm, a wing-shaped pantograph head, a controller, an acceleration sensor, a pressure sensor and a temperature sensor, wherein the wing-shaped pantograph head is connected with the insulating upper arm, the wing-shaped pantograph head is provided with a main flap, an auxiliary flap and a sliding plate which is in sliding contact with a contact line, the pressure sensor can detect the pressure between the sliding plate and the contact line, the temperature sensor can detect the temperature of the sliding plate, the acceleration sensor can detect the vibration acceleration of the wing-shaped pantograph head, and the wing-shaped pantograph head is connected above the insulating upper arm through an intelligent lifting support frame; a main steering engine and an auxiliary steering engine are arranged in the wing-shaped bow head; the rotating part of the main steering engine is connected with the main flap and can adjust the included angle between the main flap and the horizontal plane; the rotating part of the auxiliary steering engine is connected with the auxiliary flap and can adjust the included angle between the auxiliary flap and the horizontal plane; the intelligent lifting support frame, the main steering engine and the auxiliary steering engine are in signal connection with the controller.

The technical effect of the technical scheme is as follows: can adjust the upper and lower height of wing section bow through intelligent lift support frame, can adjust the contained angle between main wing flap and the horizontal plane through main steering wheel, can adjust the contained angle between vice wing flap and the horizontal plane through vice steering wheel, and adjust the pantograph state information that detects for current sensor, so just realized the initiative regulation to the pantograph gesture, the automatic performance of pantograph has been improved, can reduce the off-line condition of pantograph and contact net, the arcing phenomenon appears in the reduction, reduce the slide wearing and tearing of pantograph, the life of extension slide and whole pantograph.

Furthermore, intelligence lift support frame includes servo electronic jar, stake body and jar seat, the stake body with insulating upper arm is connected, the jar seat is fixed in on the stake body, servo electronic jar is vertical to be fixed in on the jar seat, wing section bow head fixed connection in the flexible end at servo electronic jar top, servo electronic jar with controller signal connection.

The technical effect of the technical scheme is as follows: this type of intelligence lift support frame simple structure easily adjusts low in use cost.

Furthermore, the support body comprises a cross rod and two vertical rods fixedly connected with the cross rod, and the two vertical rods are connected with the insulating upper arm.

Further, the acceleration sensor includes a lateral acceleration sensor, a longitudinal acceleration sensor, and a vertical acceleration sensor.

The technical effect of the technical scheme is as follows: the vibration acceleration of the airfoil bow can be comprehensively detected from three directions.

Furthermore, the wing-shaped bow head is provided with an ultrasonic sensor and an image sensor which are in signal connection with the controller; the image sensor is used for acquiring image data of a sliding contact surface of the sliding plate and transmitting the image data of the sliding contact surface to the controller; the ultrasonic sensor can send out ultrasonic waves, receive reflected ultrasonic data from the sliding plate and transmit the reflected ultrasonic data to the controller.

Furthermore, a positioning system is installed on the wing-shaped bow head, the positioning system and the controller are connected with a remote server through wireless signals, and the positioning system can transmit the position information of the wing-shaped bow head to the remote server in real time.

Furthermore, the outer cambered surface of the wing-shaped bow head is provided with a reinforcing rib.

The technical effect of the technical scheme is as follows: the structural strength of the wing-shaped bow is increased.

Further, the slide plate is provided with a liquid cooling system, and the liquid cooling system is in signal connection with the controller.

The technical effect of the technical scheme is as follows: can initiatively cool down the slide through the liquid cooling system to the life of extension slide.

Furthermore, the liquid cooling system includes condenser pipe, liquid pump, the oil tank that is equipped with insulating oil, the condenser pipe evenly arrange in the slide, its inlet extends to in the oil tank and dip in insulating oil, its liquid outlet extends to in the oil tank to be located the top of insulating oil in the oil tank, the liquid pump with controller signal connection, and its liquid path inserts in the liquid inlet pipe way of condenser pipe.

The technical effect of the technical scheme is as follows: this liquid cooling system simple structure for current common circulation liquid route system applies to the slide of pantograph, can realize the high-efficient cooling of slide.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an intelligent pantograph according to the present invention;

FIG. 2 is a schematic front view of an airfoil bow according to the present invention;

FIG. 3 is a schematic top view of an airfoil bow according to the present invention;

FIG. 4 is a block diagram illustrating the control of an intelligent pantograph according to the present invention;

in the figure: 1-wing type bow, 2-insulating upper arm, 3-push rod, 4-base, 5-cylinder, 6-sliding plate, 7-acceleration sensor, 8-bracket body, 9-cylinder base, 10-servo electric cylinder, 11-main steering engine, 12-auxiliary steering engine, 13-main wing flap, 14-auxiliary wing flap, 15-condenser pipe, 16-image sensor, 17-ultrasonic sensor, 18-temperature sensor, 19-reinforcing rib, 20-controller, 21-pressure sensor, 22-positioning system, 23-remote server and 24-liquid pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when products of the present invention are used, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 to 4, the present embodiment provides an intelligent pantograph, including an upper insulating arm 2, a wing-shaped bow, a controller 20, an acceleration sensor 7, a pressure sensor 21 and a temperature sensor 18, where the wing-shaped bow is connected to the upper insulating arm 2, the wing-shaped bow is provided with a main flap 13, an auxiliary flap 14 and a sliding plate 6 in sliding contact with a contact wire, the pressure sensor 21 can detect a pressure between the sliding plate 6 and the contact wire, the temperature sensor 18 can detect a temperature of the sliding plate 6, the acceleration sensor 7 can detect a vibration acceleration of the wing-shaped bow, and the wing-shaped bow is connected above the upper insulating arm 2 through an intelligent lifting support frame; a main steering engine 11 and an auxiliary steering engine 12 are arranged in the wing-shaped bow head; the rotating part of the main steering engine 11 is connected with the main flap 13 and can adjust the included angle between the main flap 13 and the horizontal plane; the rotating part of the auxiliary steering engine 12 is connected with the auxiliary flap 14, and the included angle between the auxiliary flap 14 and the horizontal plane can be adjusted; the intelligent lifting support frame, the main steering engine 11 and the auxiliary steering engine 12 are in signal connection with the controller 20.

In the present embodiment, the controller 20 is installed below the base 4 of the pantograph. The flap sets up at wing section bow head rear portion border position, is made by carbon fiber material, can alleviate whole quality, and the flap includes two main flaps 13, two vice flaps 14, and a flap corresponds a steering wheel.

In the intelligent pantograph according to this embodiment, the controller 20 may set a pressure threshold and a vibration acceleration threshold, and then actively adjust an included angle between the flap and the horizontal plane and a height position of the wing bow according to pressure data detected by the pressure sensor 21 and vibration acceleration data detected by the acceleration sensor 7.

In this embodiment, intelligent lift support frame includes servo electronic jar 10, stake body 8 and jar seat 9, and stake body 8 is connected with insulating upper arm 2, and jar seat 9 is fixed in on stake body 8, and servo electronic jar 10 is vertical to be fixed in on jar seat 9, and wing section bow fixed connection is in the flexible end at servo electronic jar 10 top, servo

electronic jar

10 and 20 signal connection of controller. Wherein the bracket body 8 comprises a cross rod and two vertical rods fixedly connected with the cross rod, and the two vertical rods are connected with the insulating upper arm 2.

In the present embodiment, the acceleration sensor 7 includes a lateral acceleration sensor, a longitudinal acceleration sensor, and a vertical acceleration sensor, and then can detect the vibration acceleration of the airfoil bow comprehensively from three directions.

In the embodiment, the wing-shaped bow head is provided with an ultrasonic sensor 17 and an image sensor 16 which are in signal connection with the controller 20; the image sensor 16 is used for acquiring image data of the sliding contact surface of the sliding plate 6 and transmitting the image data of the sliding contact surface to the controller 20; the ultrasonic sensor 17 is capable of emitting ultrasonic waves, and receiving reflected ultrasonic data from the sled 6, and transmitting the reflected ultrasonic data to the controller 20. The ultrasonic sensor 17 is connected to the bow head through a lock catch, and sensor looseness caused by vibration is prevented.

In this embodiment, the positioning system 22 is installed on the wing bow, and the positioning system 22 and the controller 20 are all connected with the remote server 23 by wireless signals, so that the positioning system 22 can transmit the position information of the wing bow to the remote server 23 in real time. The remote server 23 can record the running state of the sliding plate 6, conduct big data analysis, find out the frequent arc burning section of the contact net, and the controller 20 can judge whether the sliding plate 6 has cracks or not according to the ultrasonic data and determine the abrasion degree of the sliding plate.

In this embodiment, the outer arc of the airfoil bow is provided with a stiffener 19, which is made of a high strength carbon fiber material.

In this embodiment, the slide plate is equipped with a liquid cooling system, which is in signal communication with the controller 20. The liquid cooling system comprises a condenser pipe 15, a liquid pump 24 and an oil tank filled with insulating oil, wherein the condenser pipe 15 is uniformly arranged in the sliding plate 6, a liquid inlet of the condenser pipe extends into the oil tank and is immersed in the insulating oil, a liquid outlet of the condenser pipe extends into the oil tank and is positioned above the insulating oil in the oil tank, the liquid pump 24 is in signal connection with the controller 20, and a liquid path of the liquid pump is connected into a liquid inlet pipeline of the condenser pipe 15. Wherein the condensation duct 15 can be formed in a flattened structure so as to be sufficiently in contact with the slide 6, thereby improving heat dissipation efficiency. The insulating oil can be transformer oil, which is composed of compounds such as alkane, naphthenic saturated hydrocarbon, aromatic unsaturated hydrocarbon and the like, and has good thermal conductivity and good insulating property.

The controller 20 may set a threshold temperature for the slide 6, and when the temperature sensed by the temperature sensor 18 is above the threshold, a start signal is sent to the liquid pump 24, the liquid pump 24 is started to deliver low temperature oil from the tank to the slide, and high temperature oil from the slide is returned to the tank.

In this embodiment, insulating upper arm 2 adopts the aluminum alloy welding to be hollow structure, and the play liquid pipeline and the inlet liquid pipeline of condenser pipe 15 can be arranged to well kenozooecium, can place the data cable simultaneously, carries sensor data.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent pantograph comprises an insulating upper arm, a wing-shaped pantograph head, a controller, an acceleration sensor, a pressure sensor and a temperature sensor, wherein the wing-shaped pantograph head is connected with the insulating upper arm and is provided with a main flap, an auxiliary flap and a sliding plate in sliding contact with a contact wire; a main steering engine and an auxiliary steering engine are arranged in the wing-shaped bow head; the rotating part of the main steering engine is connected with the main flap and can adjust the included angle between the main flap and the horizontal plane; the rotating part of the auxiliary steering engine is connected with the auxiliary flap and can adjust the included angle between the auxiliary flap and the horizontal plane; the intelligent lifting support frame, the main steering engine and the auxiliary steering engine are in signal connection with the controller;

the intelligent lifting support frame comprises a servo electric cylinder, a support body and a cylinder seat, the support body is connected with the insulating upper arm, the cylinder seat is fixed on the support body, the servo electric cylinder is vertically fixed on the cylinder seat, the wing-shaped bow head is fixedly connected with a telescopic end at the top of the servo electric cylinder, and the servo electric cylinder is in signal connection with the controller; the support body comprises a cross rod and two vertical rods fixedly connected with the cross rod, and the two vertical rods are connected with the insulating upper arm.

2. The smart pantograph of claim 1, wherein the acceleration sensor comprises a lateral acceleration sensor, a longitudinal acceleration sensor, and a vertical acceleration sensor.

3. The smart pantograph according to claim 1, wherein the wing-shaped pantograph head is provided with an ultrasonic sensor and an image sensor in signal connection with the controller; the image sensor is used for acquiring image data of a sliding contact surface of the sliding plate and transmitting the image data of the sliding contact surface to the controller; the ultrasonic sensor can send out ultrasonic waves, receive reflected ultrasonic data from the sliding plate and transmit the reflected ultrasonic data to the controller.

4. The smart pantograph according to claim 1, wherein the wing-shaped pantograph head is provided with a positioning system, the positioning system and the controller are in wireless signal connection with a remote server, and the positioning system can transmit the position information of the wing-shaped pantograph head to the remote server in real time.

5. The smart pantograph according to claim 1, wherein the outer arc surface of the wing-shaped bow is provided with a reinforcing rib.

6. The intelligent pantograph of claim 1, wherein the sled mounts a liquid cooling system in signal communication with the controller.

7. The intelligent pantograph according to claim 6, wherein the liquid cooling system comprises a condenser pipe, a liquid pump and an oil tank filled with insulating oil, the condenser pipe is uniformly arranged in the sliding plate, a liquid inlet of the condenser pipe extends into the oil tank and is immersed in the insulating oil, a liquid outlet of the condenser pipe extends into the oil tank and is located above the insulating oil in the oil tank, the liquid pump is in signal connection with the controller, and a liquid circuit of the liquid pump is connected into a liquid inlet pipeline of the condenser pipe.