CN117533149A - Side-direction electricity-taking pantograph for electrified highway and electricity-taking method - Google Patents

Abstract

The invention relates to the technical field of electric road automobile equipment, and discloses a side electric-taking pantograph for an electric road and an electric-taking method, wherein the side electric-taking pantograph for the electric road comprises the following components: base, lift platform, bow subassembly that opens and shuts, zero line pantograph group, live wire pantograph group, electrical system, wherein, the base passes through the insulator to be installed on the automobile body, and lift platform installs on the base, and its one side can be followed base lift axle and gone up and down, thereby the bow subassembly that opens and shuts can be closely control the degree of opening and shutting through cylinder and private clothes jar under electrical system's control and make zero line pantograph group, live wire pantograph group closely laminate with the power transmission line, realizes getting the electricity from the side.

Description

Side-direction electricity-taking pantograph for electrified highway and electricity-taking method

Technical Field

The invention relates to the technical field of electrified highway automobile equipment, in particular to a lateral electricity-taking pantograph for an electrified highway and an electricity-taking method.

Background

Compared with the fuel oil vehicle, the electric power of the electric vehicle can be derived from clean and sustainable energy sources such as water power, solar energy, wind energy and the like, and is inexhaustible. Compared with a lithium battery charging vehicle, the overhead line vehicle and the overhead line thereof have low cost and wide material sources. For commercial trucks mainly transported on highways, the transportation line is mainly on the highways, the road condition is simple, and the commercial trucks are suitable for adopting an overhead line type power supply scheme to form an overhead line and battery driven electric hybrid power scheme. The problems that the overhead line vehicle cannot leave the overhead line to drive and run and the charging vehicle has short endurance mileage, expensive battery, low service life and the like can be solved. The overhead hybrid vehicle is a very good solution for commercial trucks. Currently, overhead electrified vehicles adopting overhead power take-off have been used in initial tests and in small areas, but overhead power take-off has limitations on vehicle height and is not widespread. Meanwhile, when the vehicle changes lanes, the overhead line has the problem of difficult control of the lifting of the pantograph.

Disclosure of Invention

The invention provides a lateral electricity-taking pantograph for an electrified highway and an electricity-taking method, which are used for solving the problem that the existing overhead line electricity-taking mode has limitation on the height of a vehicle and has no universality. Meanwhile, when the vehicle changes lanes, the overhead line has the problem of difficult control of the lifting of the pantograph.

In order to achieve the above object, the present invention is realized by the following technical scheme:

in a first aspect, the present invention provides a lateral pantograph for an electrified highway, comprising: base, lift platform, bow assembly, zero line pantograph group, live wire pantograph group, electrical system open and shut, the base passes through the insulator and installs on the automobile body, the base is equipped with the lift axle, the lift platform passes through the lift axle is installed on the base, just lift platform's one side can be followed the lift axle goes up and down, bow assembly open and shut with electrical system connects, zero line pantograph group with live wire pantograph group all with bow assembly connection opens and shuts, electrical system is used for controlling bow assembly execution open and shut and closes the action so that zero line pantograph with the live wire pantograph carries out the side with the laminating of power transmission line and gets the electricity.

In a second aspect, the present application provides a power extraction method applied to the above-mentioned lateral power extraction pantograph for an electrified highway, the method including:

the electric control system is used for controlling the bow opening and closing assembly to execute bow opening and closing actions so that the lifting platform is lifted along the lifting shaft of the base, and the zero line pantograph group and the live line pantograph group are controlled to be attached to the power transmission line for lateral power taking.

The beneficial effects are that:

the invention provides a side-direction electricity-taking pantograph for an electrified highway, which comprises: base, lift platform, bow subassembly that opens and shuts, zero line pantograph group, live wire pantograph group, electrical system, wherein, the base passes through the insulator to be installed on the automobile body, and lift platform installs on the base, and its one side can be followed base lift axle and gone up and down, thereby the bow subassembly that opens and shuts can be closely control the degree of opening and shutting through cylinder and private clothes jar under electrical system's control and make zero line pantograph group, live wire pantograph group closely laminate with the power transmission line, realizes getting the electricity from the side.

In a further technical scheme, the corner sensor is arranged in the opening and closing bow assembly, and the distance between the vehicle and the power transmission line can be accurately calculated through position feedback of the corner sensor, so that the vehicle can keep the lane to run in the middle or automatically guide to run along the power transmission line, and the reliability and the safety of the navigation running method are improved.

In a further technical scheme, the wire pressing force of the zero-wire pantograph set and the live-wire pantograph set is controlled, so that the similar wire pressing force can be obtained when the vehicle keeps different distances from the power transmission line, and the carbon brush is ensured to be in good contact with the power transmission line.

In a further technical scheme, the zero line carbon brush and the fire wire carbon brush are two, so that stable electricity taking is ensured.

Drawings

FIG. 1 is a diagram of the overall machine of a side-draw pantograph for electrified highways according to a preferred embodiment of the present invention;

FIG. 2 is a block diagram of a lifting platform in accordance with a preferred embodiment of the present invention;

FIG. 3 is a block diagram of a pantograph opening and closing mechanism according to a preferred embodiment of the present invention;

FIG. 4 is a block diagram of a pantograph support device according to a preferred embodiment of the present invention;

fig. 5 is a lifting structure diagram of a pantograph loader according to a preferred embodiment of the present invention;

fig. 6 is a view showing a construction of a pantograph loader and an open-close pantograph according to a preferred embodiment of the present invention;

FIG. 7 is a schematic view of the lifting principle of the preferred embodiment of the present invention;

FIG. 8 is a schematic diagram of the operation of the lift platform according to the preferred embodiment of the present invention;

FIG. 9 is a schematic illustration of the principle of the open-close bow of the preferred embodiment of the present invention;

FIG. 10 illustrates the principle of operation of the retractable bow of the preferred embodiment of the present invention;

FIG. 11 is a schematic illustration of automatic control of a pantograph in accordance with a preferred embodiment of the present invention;

fig. 12 is a schematic diagram of a pantograph electrical control system in accordance with a preferred embodiment of the present invention.

Reference numerals:

Detailed Description

The following description of the present invention will be made clearly and fully, and it is apparent that the embodiments described are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.

The parameters referred to in this application are described below as shown in table 1 below:

TABLE 1 parameter paraphrasing table

Referring to fig. 1, the application provides a side direction pantograph for electrified highway, including: base 1, lift platform 2, open and shut bow subassembly 3, zero line pantograph group 4, live wire pantograph group 5, electrical system 8, base 1 passes through insulator 14 and installs on automobile body 6, base 1 is equipped with lift axle 17, lift platform 2 passes through lift axle 17 installs on base 1, just one side of lift platform 2 can be followed lift axle 17 goes up and down, open and shut bow subassembly 3 with electrical system 8 is connected, zero line pantograph group 4 with live wire pantograph group 5 all with open and shut bow subassembly 3 is connected, electrical system 8 is used for controlling open and shut bow subassembly 3 to carry out the action of opening and shutting so that zero line pantograph group 4 with live wire pantograph group 5 and power transmission line 7 laminating are carried out the side and are got the electricity.

The above-mentioned electrified highway is with side direction pantograph of getting electricity includes: base 1, lift platform 2, open and shut bow subassembly 3, zero line pantograph group 4, live wire pantograph group 5, electrical system 8, wherein, base 1 passes through insulator 14 to be installed on automobile body 6, and lift platform 2 is installed on base 1, and its one side can be followed base 1 lift axle 17 and gone up and down, thereby open and shut bow subassembly 3 can be closely control the degree of opening and shutting through cylinder and servo electric cylinder under electrical system 8's control and make zero line pantograph group 4, live wire pantograph group 5 and power transmission line 7 closely laminate, realize getting the electricity from the side.

Specifically, the base 1 further comprises a bottom frame 13, a lifting cylinder base 111, a lifting cylinder 12, the bottom frame 13, an insulator 14, an insulating support 15 and a lifting lower support 16, wherein the insulating support 15, the lifting lower support 16 and the lifting cylinder base 111 are all arranged on the bottom frame 13, the insulator 14 is arranged between the insulating support 15 and the vehicle body 6, the insulator 14 is arranged on one side, close to the power transmission line 7, of the top of the vehicle body 6, and the base 1, the carbon brush and the vehicle body 6 are all in insulating arrangement.

In the embodiment, a double insulation mode is adopted, so that the safety of personnel in the vehicle can be ensured when power is taken in severe weather.

Specifically, referring to fig. 2, the lifting platform 2 includes a lifting frame 23, and an opening and closing bow shaft 21, a servo cylinder seat 22, an opening and closing bow connecting rod seat 24, a lifting cylinder top seat 25, a lifting upper support 26 and an closing bow fixing frame 27 all disposed on the lifting frame 23.

The bow opening and closing assembly 3 comprises a bow opening and closing connecting rod 31, a first sensor 32, a servo electric cylinder 33, a bow opening and closing supporting connecting rod 34, a bow opening and closing cylinder 35, a live wire line pressing spring 36, a zero line pressing spring 37, a second sensor 38 and a third sensor;

the open-close bow connecting rod 31 is installed on the open-close bow shaft 21, the fixed end of the first sensor 32 is installed on the open-close bow shaft 21, the movable end of the first sensor 32 is installed on the open-close bow connecting rod 31, one end of the open-close bow supporting connecting rod 34 is installed on the open-close bow connecting rod seat 24, the other end is provided with the servo electric cylinder 33 push rod seat, the open-close bow air cylinder 35 seat is installed in the middle, one end of the open-close bow air cylinder 35 is installed and connected with the open-close bow connecting rod 31, the other end is connected with the open-close bow supporting connecting rod 34, one end of the servo electric cylinder 33 is connected with the servo electric cylinder seat 22, the other end is connected with the open-close bow supporting connecting rod 34, one end of the live wire pressing spring 36 is connected with the lifting frame 23, the other end is connected with the live wire pressing spring bracket 59, one end of the zero wire pressing spring 37 is connected with the lifting frame 23, the other end is connected with the zero wire pressing spring bracket 49, the fixed end of the second sensor 38 is connected with the open-close bow connecting rod 31, the movable end is connected with the zero wire connecting rod supporting seat 410, the fixed end of the third sensor is connected with the open-close bow connecting rod 31, and the movable end is connected with the live wire supporting seat 510.

In concrete implementation, the lifting lower support 16, the lifting upper support 26 and the lifting shaft 17 form a set of rotating assembly, the lifting cylinder base 111, the lifting cylinder 12 and the lifting cylinder top seat 25 form a set of lifting driving mechanism, and under the action of the lifting cylinder 12, the lifting platform 2 rotates around the lifting shaft 17, so that one end of the lifting frame 23 far away from the lifting shaft 17 is lifted or fallen, namely, the position of the opening and closing bow shaft 21 is lifted or fallen, and the lifting or falling of the zero-line pantograph group 4 and the live-wire pantograph group 5 is realized.

The open-close bow connecting rod 31 is arranged on the open-close bow shaft 21, the fixed end of the first sensor 32 is arranged on the open-close bow shaft 21, the movable end of the first sensor 32 is arranged on the open-close bow connecting rod 31 and used for detecting the rotating angle of the open-close bow connecting rod 31, and the angle is indicated by gamma.

One end of an opening and closing bow supporting connecting rod 34 is arranged on the opening and closing bow connecting rod seat 24, the other end is provided with a servo electric cylinder 33 push rod seat, the middle is provided with an opening and closing bow air cylinder 35 support, and the opening and closing bow supporting connecting rod 34 can rotate around the opening and closing bow connecting rod seat 24, so that the pivot position of the opening and closing bow air cylinder 35 is changed, and the opening and closing degree of the pantograph is electrically controlled and adjusted.

One end of the bow opening and closing cylinder 35 is arranged in the middle of the bow opening and closing connecting rod 31, and the other end is arranged in the middle of the bow opening and closing supporting connecting rod 34. The retractable bow cylinder 35 stretches and contracts to enable the retractable bow connecting rod 31 to rotate around the retractable bow shaft 21, so that the zero-line pantograph set 4 and the live-wire pantograph set 5 are far away from or close to the base 1, and accordingly the pantograph is opened and closed, and contact and disconnection with the power transmission line 7 are achieved.

The servo cylinder 33 has one end mounted to the servo cylinder block 22 and the other end mounted to the open-close bow support link 34. Under the control of the ECU86, the servo electric cylinder 33 controls the angle of the opening and closing bow supporting connecting rod 34, and further adjusts the rotating angle of the opening and closing bow connecting rod 31, so that the line pressing force of the zero line pantograph group 4 and the live line pantograph group 5 is controlled, the similar line pressing force can be obtained when the vehicle keeps different distances from the power transmission line 7, and the carbon brush is ensured to be in good contact with the power transmission line 7.

The live line wire spring 36 is mounted at one end to the crane 23 and at the other end to the live line wire spring bracket 59. The live wire line ball spring 36 acts on live wire line ball spring bracket 59, and when the bow connecting rod 31 that opens and shuts is driven Zhang Kaigong, live wire line ball spring 36 makes live wire pantograph group 5 further to opening the bow direction motion to make on the live wire pantograph group 5 around it at bow connecting rod 31 that opens and shuts form elasticity rotation structure, make live wire pantograph group 5 can the self-adaptation in a certain limit adjust the degree of compaction.

The neutral wire pressing spring 37 has one end mounted on the lifting frame 23 and the other end mounted on the neutral wire pressing spring bracket 49. The zero line pressing spring 37 acts on the zero line pressing spring bracket 49, when the opening and closing bow connecting rod 31 is driven Zhang Kaigong, the zero line pressing spring 37 enables the zero line pantograph set 4 to further move towards the opening bow direction, so that an elastic rotating structure is formed on the zero line pantograph set 4 around the zero line pantograph set 4 on the opening and closing bow connecting rod 31, and the compression degree of the zero line pantograph set 4 can be adjusted in a self-adaptive mode within a certain range.

The fixed end of the second sensor 38 is mounted on the open-close bow link 31, and the movable end is mounted on the zero line link support base 410. The angle of rotation of the zero line insulator spindle 47 relative to the pantograph opening and closing link 31 is detected and is designated as beta ₁ . Fastening of the third sensorThe fixed end is arranged on the opening and closing bow connecting rod 31, and the movable end is arranged on the live wire connecting rod supporting seat 510. The angle for detecting the rotation of the live wire insulating rod 57 with respect to the opening and closing bow link 31 is denoted as beta ₂ 。

Referring to fig. 3-6, optionally, the zero-line pantograph set 4 mainly includes a zero-line carbon brush 41, a zero-line carbon brush holder 42, a zero-line carbon brush link 43 limiting seat, a zero-line pantograph balance spring 45, a zero-line link connecting sleeve 46, a zero-line insulating rod 47, a zero-line closing bracket 48, a zero-line wire pressing spring bracket 49, and a zero-line link supporting seat 410.

In this embodiment, the zero-line carbon brush 41 has two front and rear parts, and is mounted on the zero-line carbon brush holder 42, the zero-line carbon brush holder 42 is mounted on the zero-line carbon brush link 43, and the zero-line carbon brush link 43 is rotatably mounted on the zero-line link support base 410. The zero line carbon brush connecting rod 43 is under the action of the zero line pantograph balance spring 45, so that the front and rear carbon brushes tend to be parallel to the zero line insulating rod 47, and the limit position of the zero line carbon brush connecting rod 43 is limited by the limit seat, so that the working direction of the zero line carbon brush connecting rod is always towards the outer side. When the pantograph approaches to the power transmission line 7 zero line 71, the rear zero line carbon brush 41 contacts with the power transmission line 7 zero line 71 first, then drives the zero line carbon brush connecting rod 43 to rotate by a certain angle, and then enables the front zero line carbon brush 41 to contact with the power transmission line 7 zero line 71, so that stable power taking is ensured.

The zero line insulating rod 47 is connected with the opening and closing bow connecting rod 31 and the zero line carbon brush connecting rod 43 through the zero line connecting rod supporting seat 410, and the zero line connecting rod connecting sleeve 46 is arranged in the middle of the zero line insulating rod 47, so that one end of the zero line insulating rod 47 close to the zero line carbon brush connecting rod 43 forms a set of triangle structure, and the zero line carbon brush holder 42 can rotate around the base 1 of the zero line carbon brush connecting rod 43 and is always perpendicular to the plane of the base 1. The vehicle neutral wire 71 is electrically connected to the neutral wire carbon brush link 43 via an insulating wire, and the neutral wire insulating rod 47 prevents the current on the neutral wire 71 from being led to the base 1.

A neutral wire closing bracket 48 and a neutral wire pressing spring bracket 49 are mounted on the other end of the neutral wire insulation rod 47 surrounding the neutral wire connecting rod support base 410. When the bow opening and closing cylinder 35 closes the bow, the zero line bow closing bracket 48 is tightly attached to the bow closing fixing frame 27, so that the zero line pantograph set 4 is prevented from freely rotating around the zero line connecting rod supporting seat 410 after closing the bow, and the function of fixing the movement of the zero line pantograph set 4 is achieved.

Optionally, the live wire pantograph group 5 mainly comprises a live wire carbon brush 51, a live wire carbon brush holder 52, a live wire carbon brush connecting rod 53, a live wire carbon brush connecting rod limiting seat 54, a live wire pantograph balance spring 55, a live wire connecting rod connecting sleeve 56, a live wire insulating rod 57, a live wire pantograph combination bracket 58, a live wire pressing spring bracket 59 and a live wire connecting rod supporting seat 510.

In this embodiment, the live carbon brush 51 has two front and rear parts, which are mounted on the live carbon brush holder 52, the live carbon brush holder 52 is mounted on the live carbon brush link 53, and the live carbon brush link 53 is rotatably mounted on the live link support base 510. Under the action of the live wire pantograph balance spring 55, the live wire carbon brush connecting rod 53 makes the carbon brush at the front and rear direction have a trend of being parallel to the live wire insulating rod 57, and the limit position of the carbon brush connecting rod is limited by the live wire carbon brush connecting rod limiting seat 54, so that the working direction of the carbon brush connecting rod is always towards the outer side. When the pantograph approaches the power transmission line live wire 72, the live wire carbon brush 51 at the rear side firstly contacts the power transmission line live wire 72, then drives the live wire carbon brush connecting rod 53 to rotate by a certain angle, and then the live wire carbon brush 51 at the front side contacts the power transmission line live wire 72, so that stable power taking is ensured.

The live wire insulator spindle 57 passes through live wire connecting rod supporting seat 510 and opens and shuts bow connecting rod 31, live wire carbon brush connecting rod 53 and is connected, installs live wire connecting rod adapter sleeve 56 in the middle of the live wire insulator spindle 57, makes live wire insulator spindle 57 be close the one end of live wire carbon brush connecting rod 53 and forms a set of triangle-shaped structure, makes live wire carbon brush holder 52 can rotate around the base 1 of live wire carbon brush connecting rod 53, but is perpendicular with the plane of base 1 all the time. The power line 72 of the vehicle is taken from the power line carbon brush link 53 through the insulated wire, and the power line insulated rod 57 can prevent the current on the neutral wire 71 from being led to the base 1.

The live wire closing bracket 58 and the live wire pressing spring bracket 59 are arranged at the zero end of the live wire insulating rod 57 surrounding the live wire connecting rod supporting seat 510. When the live wire closing bracket 58 closes the bow through the opening and closing air cylinder 35, the live wire closing bracket 58 is tightly attached to the closing fixing frame 27, so that the live wire pantograph set 5 is prevented from freely rotating around the live wire connecting rod supporting seat 510 after closing the bow, and the effect of fixing the movement of the live wire pantograph set 5 is achieved.

The connection of the live wire 72 and the zero wire 71 is derived from a carbon brush holder, and the carbon brush holder is insulated from the opening and closing bow connecting rod 31 by the live wire insulating rod 57 and the zero wire insulating rod 47. In order to improve the insulation safety of the pantograph, the entire base 1 of the pantograph is insulated from the vehicle body 6 by an insulator 14. The double insulation mode can improve the safety of electricity taking.

Optionally, the electric control system 8 mainly comprises a power supply 81, a lifting electromagnetic valve 82, an opening and closing electromagnetic valve 83, a combination switch 84, a CAN bus 85 and an ECU 86.

In this embodiment, the power supply 81 supplies power to the electric control system 8 and auxiliary electric control parts thereof, and the ECU86 controls the opening and closing of the first electromagnetic valve and the second electromagnetic valve according to the signals of the combination switch 84, so as to control the lifting platform 2 to lift and control the bow opening and closing assembly 3 to open and close the bow. The ECU86 controls the expansion and contraction amount of the servo cylinder 33 after calculation according to the rotation angle position signals and the lane position information sensed by the first sensor 32, the second sensor 38 and the third sensor 39, so as to precisely control the carbon brush of the pantograph system and the pressure of the power transmission line 7 and ensure power taking. The ECU86 CAN also transmit the detected rotation angle position signal to the vehicle-mounted computer through the CAN bus 85 to prompt the driver or control the vehicle to turn, so that the vehicle loaded with the device CAN automatically center or automatically navigate and run along the power transmission line 7 according to a certain rule.

Next, the principle related to the above-described electric pantograph for electrified highway side-to-side power take-off will be described as follows:

1. principle of lifting platform:

as shown in fig. 7 to 8, the live wire 72 is arranged above the neutral wire 71, and in the initial state in which the pantograph is not lifted, the current collector of the pantograph is positioned lower than the power transmission line, that is, the live wire carbon brush 51 is lower than the live wire 72, and the neutral wire carbon brush 41 is lower than the neutral wire 71. When electricity is required to be taken, a driver operates a combined switch 84 in the electric control system 8 to control a lifting electromagnetic valve 82 to be electrified, a piston rod of a lifting cylinder 12 stretches out, a lifting platform 2 rotates around a lifting shaft 17, and the lifting platform 2 drives a zero-line pantograph set 4 and a live-wire pantograph set 5 to lift. When the lifting platform 2 is lifted to the limit position, as shown in fig. 8, an included angle α is formed between the lifting platform 2 and the horizontal plane, and α is preferably 10 to 20 °, the live wire 72 is located at the middle position of the live wire carbon brush 51, the zero wire 71 is located at the middle position of the zero wire carbon brush 41, and the live wire carbon brush 51 and the zero wire carbon brush 41 are approximately perpendicular to the live wire 72, the zero wire 71 and the ground.

When the driver operates the combination switch 84 in the electric control system 8 to control the lifting electromagnetic valve 82 to lose electricity, the piston rod of the lifting cylinder 12 is retracted, the lifting platform 2 rotates around the lifting shaft 17, and the lifting platform 2 drives the zero-line pantograph group 4 and the live-wire pantograph group 5 to be lowered until the zero-line pantograph group and the live-wire pantograph group are lowered to an initial state.

The lifting direction of the lifting platform 2 is shown in a figure D1, and the lowering direction is shown in a figure D2.

As shown in fig. 5, the distance L between the neutral line 71 and the live line 72 ₂ Longer than the length L of the zero line carbon brush 41 and the fire wire carbon brush 51 ₁ And the length of the carbon brush frame is also larger than that of the zero line carbon brush frame and the fire wire carbon brush frame. The method can prevent the short circuit of the zero firing line caused by the up-and-down bumpy movement of the vehicle in the moving process.

2. The principle of opening and closing a bow:

as shown in fig. 9-10, the open-close principle of the live wire pantograph group 5 is taken as an example: in the initial state in which the pantograph is not opened, the live wire 72 is positioned outside the live wire carbon brush 51. When electricity is needed to be taken, a driver operates a combined switch 84 in an electric control system 8 to control a pantograph to open, the electric control system 8 firstly enables a lifting electromagnetic valve 82 to be electrified, a piston rod of a lifting cylinder 12 stretches out, after the lifting platform 2 reaches a preset position, the electric control system 8 controls an opening and closing pantograph electromagnetic valve 83 to be electrified, an opening and closing pantograph cylinder 35 stretches out, the opening and closing pantograph cylinder 35 enables an opening and closing connecting rod 31 to rotate outwards around an opening and closing pantograph shaft 21, when the opening and closing pantograph connecting rod 31 rotates outwards, a live wire pantograph bracket 58 is separated from an opening and closing pantograph fixing frame 27, a live wire pantograph group 5 rotates around a live wire connecting rod supporting seat 510 under the tensile force of a live wire pressing wire spring 36 to continue to move outwards, so that a live wire carbon brush 51 is contacted with a live wire 72, and the contact state of the live wire carbon brush is also adjustable through a servo electric cylinder 33, so that the running requirements of a vehicle at different positions on a lane are met.

When the power is not needed, the driver operates the combination switch 84 in the electric control system 8 to control the pantograph to close, the electric control system 8 firstly enables the servo electric cylinder 33 to extend to the maximum value, then controls the pantograph opening and closing electromagnetic valve 83 to lose power, the pantograph opening and closing air cylinder 35 to retract, when the pantograph opening and closing connecting rod 31 returns to the preset position, the electric control system 8 continues to control the lifting electromagnetic valve 82 to lose power, the lifting air cylinder 12 to retract, and when the lifting platform 2 reaches the preset position, the electric control system stops working.

The control logic of the lifting electromagnetic valve 82 and the bow opening and closing electromagnetic valve 83 is to extend out by power and retract by power failure. When the electric control system fails, the pantograph can be guaranteed to return to the initial position. Thereby improving the control reliability of the pantograph.

Because the zero line pantograph group 4 is positioned below the live line pantograph group 5, the principle of opening and closing the zero line pantograph group 4 positioned on the live line pantograph group 5 is similar.

3. Signal sensing principle:

as shown in fig. 11-12, the first sensor 32 senses the gamma angle signal and the second sensor 38 senses beta ₁ Angle signal, third sensor 39 senses beta ₂ The angle signal, the measured angle beta is beta sensed by the second sensor 38 and the third sensor 39 ₁ And beta ₂ Average value of the sum. Gamma is the angle between the open-close bow connecting rod 31 and the X axis, delta is the angle between the insulating rod and the X axis, delta is equal to the difference between beta and gamma angles, and the limit delta angle is limited by a limiting device and has a limit maximum value, and the value is preferably smaller than 60 degrees.

4. The working principle of the electric control system is as follows:

when the vehicle runs on the lane and needs to get electricity, a driver operates a combined switch 84 in an electric control system 8 to control the pantograph to open, an opening and closing pantograph cylinder 35 stretches out of a limit position, when the vehicle runs on the center position of the lane, carbon brushes of the pantograph are just contacted with electric wires, but the electricity is not taken stably under the pressure of a carbon brush contact network, at the moment, the electric control system 8 controls a servo electric cylinder 33 to shrink, so that an actual measurement delta angle generates precompression with a certain degree relative to the limit delta angle, the angle is preferably 15 degrees, the compression quantity is matched with zero and live wire pressing springs, the carbon brushes can be contacted with the electric transmission lines stably, and the vehicle-mounted electric control system starts the pantograph to take electricity only after the actual measurement delta angle generates the preset precompression, so that the electricity taking safety of the electric network is improved.

In the running process of the vehicle, the actual measurement delta angle fluctuates within a certain range because the lane turning radian cannot be completely matched with the overhead line, and when the actual measurement delta angle is within the allowable fluctuation range, the electric control system does not output a control signal. When the actually measured delta angle is larger than the allowable fluctuation range, the delta is specifically shown to exceed the fluctuation range in the angle reduction direction, the fact that the vehicle has a lane deviation trend approaching the overhead line side at the moment is indicated, and the electronic control system 8 alarms to prompt a driver to correct the lane position or properly reduce the vehicle speed and automatically control the steering system to correct the lane position.

When the actually measured delta angle is larger than the allowable fluctuation range, the delta is specifically shown to exceed the fluctuation range in the angle increasing direction, the fact that the vehicle has a lane shifting trend far away from the overhead line side at the moment is indicated, and the electronic control system 8 alarms to prompt a driver to correct the lane position or properly reduce the vehicle speed and automatically control the steering system to correct the lane position.

For a commercial truck taking electricity from a side overhead line, an angle sensor is arranged on a pantograph, the distance between a vehicle and an overhead line transmission line can be judged according to signals of the angle sensor, and the vehicle can automatically keep a lane to run in the middle or automatically navigate and run along the overhead line on the basis of an automatic driving algorithm based on the overhead line. The safety of the automatic centering driving or the automatic navigation driving is better than that of the existing scheme based on the image recognition lane auxiliary line. The automatic centering driving or automatic navigation driving equipment and the cost are simpler and cheaper than the existing scheme based on the image recognition lane auxiliary line.

In order to improve the quality of the contact net of the pantograph and prevent the pantograph from being clamped into the inner side of the transmission line, the logic of the electric control system 8 for controlling the lifting platform and the opening and closing of the pantograph is required to lift the lifting platform 2 first and then open the pantograph. The pantograph must be closed first and then the lifting platform lowered.

The application also provides a power taking method which is applied to the lateral power taking pantograph for the electrified highway, and the method comprises the following steps:

the electric control system is adopted to control the lifting platform to lift along the lifting shaft of the base, then control the opening and closing bow assembly to execute opening and closing bow actions, and finally control the zero line pantograph group and the live line pantograph group to be attached to the power transmission line for lateral power taking.

In conclusion, the lateral power-taking pantograph for the electrified highway adopts a lateral power-taking mode, has no limit on the height of a vehicle, and has wider adaptability. The lateral electricity taking mode is adopted, so that the power transmission line is more convenient to mount. The lateral power taking mode is adopted, the distance between the vehicle and the power transmission line can be calculated according to the opening and closing degree of the pantograph, and the vehicle can keep the lane to run in the middle or automatically guide and run along the power transmission line, so that the vehicle is more reliable and safer.

The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides an electrified highway is with side direction pantograph of getting electricity which characterized in that includes: base, lift platform, bow assembly, zero line pantograph group, live wire pantograph group, electrical system that opens and shuts, the base passes through the insulator and installs on the automobile body, the base is equipped with the lift axle, the lift platform passes through the lift axle is installed on the base, just lift platform's one side can be followed the lift axle goes up and down, bow assembly that opens and shuts with electrical system connects, zero line pantograph group with live wire pantograph group all with bow assembly connection that opens and shuts, electrical system is used for controlling bow assembly that opens and shuts to carry out the bow action that opens and shuts so that zero line pantograph group with live wire pantograph group and power transmission line laminating carry out the side and get the electricity.

2. The lateral electric pantograph for electrified highway according to claim 1, wherein the base further comprises a chassis, a lifting cylinder base, a lifting cylinder, a chassis, an insulator, an insulating support and a lifting lower support, wherein the insulating support, the lifting lower support and the lifting cylinder base are all arranged on the chassis, the insulator is arranged between the insulating support and the vehicle body, the insulator is arranged on one side, close to a power transmission line, of the vehicle body, and the base, the carbon brush and the vehicle body are all arranged in an insulating manner.

3. The lateral pantograph for an electrified highway according to claim 1, wherein the lifting platform comprises a lifting frame, and an open-close bow shaft, a servo cylinder seat, an open-close bow connecting rod seat, a lifting cylinder top seat, a lifting upper support and an open-close bow fixing frame which are all arranged on the lifting frame.

4. The side-draw pantograph for an electrified highway according to claim 3, wherein the pantograph opening and closing assembly comprises an opening and closing pantograph linkage rod, a first sensor, a servo cylinder, an opening and closing pantograph support linkage rod, an opening and closing pantograph cylinder, a live wire line spring, a neutral wire line spring, a second sensor, and a third sensor;

the device comprises a first sensor, a second sensor, a third sensor, a live wire and a live wire pressing spring, wherein the first sensor is arranged on a connecting rod seat of the opening and closing bow, the second sensor is connected with the connecting rod seat of the opening and closing bow, the third sensor is connected with the connecting rod seat of the opening and closing bow, the live wire pressing spring is connected with the lifting frame, the other end of the live wire pressing spring is connected with the zero wire pressing spring, the fixed end of the second sensor is connected with the connecting rod of the opening and closing bow, the movable end of the third sensor is connected with the connecting rod of the opening and closing bow, and the live wire pressing spring is connected with the zero wire connecting rod seat.

5. The lateral pantograph of claim 4, wherein the zero line pantograph set includes a zero line carbon brush and a zero line insulating rod disposed on an open-close pantograph connecting rod, the zero line carbon brush includes a first zero line carbon brush and a second zero line carbon brush, the first zero line carbon brush is located in front of the second zero line carbon brush, and the zero line insulating rod is connected to the open-close pantograph connecting rod.

6. The lateral power extraction pantograph for an electrified highway according to claim 5, wherein the zero line pantograph set further comprises a zero line carbon brush link, a zero line carbon brush link limit seat, a zero line pantograph balance spring, a zero line link connecting sleeve, a zero line wire pressing spring bracket, and a zero line link support seat;

the zero line carbon brush is arranged on a zero line carbon brush holder, the zero line carbon brush holder is arranged on a zero line carbon brush connecting rod, the zero line carbon brush connecting rod is arranged on a zero line connecting rod supporting seat, a zero line carbon brush connecting rod limiting seat is arranged around the zero line carbon brush connecting rod, a zero line pantograph balance spring is connected with the zero line carbon brush connecting rod, a zero line connecting rod connecting sleeve is arranged at the middle part of a zero line insulating rod, and a zero line pressing spring bracket is arranged at the other end of the zero line insulating rod around the zero line connecting rod supporting seat.

7. A side-draw pantograph for an electrified highway according to claim 3 and wherein said live wire pantograph set comprises: the live wire carbon brush and live wire insulator spindle, the live wire carbon brush includes first live wire carbon brush and second live wire carbon brush, first live wire carbon brush is located the relative place ahead of second live wire carbon brush, the live wire insulator spindle with open and shut the bow connecting rod and be connected.

8. The side-draw pantograph for an electrified highway according to claim 7, wherein said live wire pantograph set further comprises: the device comprises a live wire carbon brush frame, a live wire carbon brush connecting rod limiting seat, a live wire pantograph balance spring, a live wire connecting rod connecting sleeve, a live wire bow-closing bracket, a live wire pressing spring bracket and a live wire connecting rod supporting seat;

the live wire carbon brush is all installed on live wire carbon brush holder, and live wire carbon brush holder installs on live wire carbon brush connecting rod, live wire carbon brush connecting rod is installed on the live wire connecting rod supporting seat, live wire carbon brush connecting rod spacing seat is located around the live wire carbon brush connecting rod, live wire pantograph balanced spring with the live wire carbon brush connecting rod links to each other, the live wire connecting rod adapter sleeve is located the middle part of live wire insulator spindle, live wire line ball spring bracket mount is around the other end of live wire connecting rod supporting seat at the live wire insulator spindle.

9. The lateral power extraction pantograph for an electrified highway according to claim 1, wherein the electric control system comprises an opening and closing solenoid valve, a combination switch, a CAN bus and an ECU;

the ECU is used for controlling the opening and closing of the electromagnetic valve according to the signals of the combined switch so as to control the lifting platform to lift and control the opening and closing bow assembly 3 to open and close the bow; the ECU is also used for calculating the expansion and contraction amount of the servo electric cylinder according to the corner position signals and the lane position information sensed by the first sensor, the second sensor and the third sensor so as to control the carbon brush of the pantograph system and the pressure of the power transmission line to realize power taking; the ECU is also configured to transmit the detected rotational angle position signal to the vehicle computer via the CAN bus 85.

10. A power extraction method applied to the lateral power extraction pantograph for electrified highways as set forth in any one of claims 1 to 9, characterized in that it comprises:

the electric control system is used for controlling the bow opening and closing assembly to execute bow opening and closing actions so that the lifting platform is lifted along the lifting shaft of the base, and the zero line pantograph group and the live line pantograph group are controlled to be attached to the power transmission line for lateral power taking.