CN211139031U

CN211139031U - Stable pantograph

Info

Publication number: CN211139031U
Application number: CN201921513964.0U
Authority: CN
Inventors: 熊志转
Original assignee: Individual
Current assignee: Shanghai Shengyi Automation Technology Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-31
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to the technical field of rail transit, and discloses a stable pantograph, which comprises a supporting base, a transmission cylinder is fixedly arranged on one side of the upper end of the supporting base, a sliding device is fixedly connected on a telescopic rod of the transmission cylinder, the front and the back of the top end of the sliding device are respectively and fixedly provided with an electromagnet, the middle part of the top end is movably sleeved with a lower arm rod, the lifting of the upper arm rod and the lower arm rod is completed through the extension and contraction of the telescopic rod of the transmission cylinder, so that the pantograph lifting process is completed, the electromagnet is electrified to generate magnetic force to repel the bar-shaped magnet of the upper arm rod, the supporting effect on the upper bracket part is achieved, the poor contact between the sliding plate and a contact net due to vibration is prevented, a deflector is added for adjusting the magnetic force to adapt to different vibration conditions, can control the magnetic force change through changing the electric current size and produce different holding power, bar magnet also can stably adsorb and support the base under the inoperative condition of pantograph.

Description

Stable pantograph

Technical Field

The utility model relates to a rail transit technical field specifically is a stable pantograph.

Background

The pantograph is an electric device for the electric tractor to obtain electric energy from a contact network and is arranged on the roof of a locomotive or a bullet train; the pantograph is divided into a single-arm pantograph and a double-arm pantograph, but the double-arm pantograph is gradually eliminated due to high maintenance cost and easy disconnection of a contact network in fault, so the single-arm pantograph is mostly adopted at present; although the single-arm bow is convenient to use and maintain, the single-arm bow has some defects: the stability is not particularly good, and the vibration is very large when the motor train runs at high speed, so that the pantograph is not in sufficient contact with a contact net and is easy to separate, and further the electric power of the motor train is unstable.

SUMMERY OF THE UTILITY MODEL

To the unstable not enough of pantograph contact, the utility model provides a stable pantograph possesses the advantage that can improve the stability of pantograph and contact net contact, has solved pantograph and contact net contact unstable problem.

The utility model provides a following technical scheme:

the utility model provides a stable pantograph, includes and supports the base, one side fixed mounting that supports the base upper end has transmission cylinder, fixedly connected with slider on the transmission cylinder telescopic link, the front and the back on slider top respectively fixed mounting have the electro-magnet, the middle part activity on slider top has cup jointed down the armed lever, the back of slider one side to the front fixed mounting have two the same lift bow springs in proper order, the one end activity of lower armed lever articulates there is the upper boom, the lower extreme fixed mounting of upper boom has bar magnet, the one end fixed connection of upper boom has the support, the opposite side activity of support base upper end has cup jointed down the guide arm, the one end activity of lower guide arm articulates there is the upper guide arm, the one end fixed connection of upper guide arm has the support, the top fixed mounting of support has the slide, the electro-magnet passes through the wire and connects slide rheostat, slide rheostat top fixed mounting has the screw hole piece, screw hole piece middle part screw thread has cup jointed down, the one end fixed connection of threaded rod has YB3 YFB 3-100L-2 commentaries on the motor platform, positive and.

Preferably, the electromagnet comprises an iron core, an insulating protective layer and a wire, wherein the iron core is sleeved inside the insulating protective layer, and the wire is wound inside the insulating protective layer in a ring shape.

Preferably, the electromagnet generates a magnetic field in a vertical direction when being electrified, the N pole of the electromagnet faces upwards, the bar magnet is installed with the N pole of the electromagnet facing downwards vertically, and the magnetic field generated when the electromagnet is electrified is in the same direction as the magnetic field corresponding to the bar magnet.

Preferably, the sliding rheostat can adjust the resistance value through the sliding sheet.

Preferably, the positive and negative rotation motor can drive the threaded rod to rotate positively and negatively, and the threaded rod can drive the screw hole block to move the sliding sheet in the positive and negative rotation mode.

Preferably, the bar magnet can generate suction to the base when the pantograph is closed.

Compared with the existing pantograph, the utility model discloses possess following beneficial effect:

1. this stable pantograph, through just reversing motor to the change of slide rheostat resistance and then change the electric current size in the circular telegram wire, the magnetic field force that produces according to different electric current sizes is different, and is also different to bar magnet's repulsion on the upper arm pole under the different situation, can adjust under the different stability circumstances, and the practicality is higher.

2. According to the stable pantograph, the resistance value of the slide rheostat is changed through the forward and reverse rotating motor, and the method for changing the current saves manpower to adjust the position of the slide sheet.

3. This stable pantograph, after the outage, under bar magnet attraction's effect, the upper arm pole is closed more high-efficiently, and is closed also more stably after closing.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention;

fig. 2 is a schematic structural view of the converter of the present invention;

fig. 3 is a schematic structural view of the electromagnet device of the present invention.

In the figure: 1. a support base; 2. a transmission cylinder; 3. a sliding device; 4. an electromagnet; 41. an iron core; 42. an insulating protective layer; 43. a wire; 5. a bow raising spring; 6. a lower guide rod; 7. a lower arm lever; 8. an upper guide rod; 9. an upper arm lever; 10. a bar magnet; 11. a support; 12. a slide plate; 13. a motor table; 14. a positive and negative rotation motor; 15. a threaded rod; 16. a screw hole block; 17. a slide rheostat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a stable pantograph includes a supporting base 1, a driving cylinder 2 is fixedly mounted on one side of an upper end of the supporting base 1, a sliding device 3 is fixedly connected to a telescopic rod of the driving cylinder 2, electromagnets 4 are respectively fixedly mounted on a front surface and a back surface of a top end of the sliding device 3, a lower arm 7 is movably sleeved on a middle portion of a top end of the sliding device 3, two identical pantograph springs 5 are fixedly mounted on a back surface of one side of the sliding device 3 in sequence from the front surface to the back surface, an upper arm 9 is movably hinged to one end of the lower arm 7, a bar magnet 10 is fixedly mounted on a lower end of the upper arm 9, a bracket 11 is fixedly connected to one end of the upper arm 9, a lower guide rod 6 is movably sleeved on the other side of the upper end of the supporting base 1, an upper guide rod 8 is movably hinged to one end of the lower guide rod 6, a bracket 11 is fixedly connected to one end of the upper guide rod 8, a sliding plate 12 is fixedly mounted on a top end of the bracket 11, the electromagnet 4 is connected to a sliding rheostat 17 through a wire 43, a screw block 16 is fixedly mounted on a middle portion of the top end of the sliding rheostat 17, a screw block 16 is.

Wherein, electro-magnet 4 includes iron core 41, insulating inoxidizing coating 42, wire 43, and iron core 41 cup joints inside insulating inoxidizing coating 42, and wire 43 ring dress winding is inside insulating inoxidizing coating 42, and insulating inoxidizing coating 42 can play insulating protection's effect, prevents that the condition such as rain can lead to circuit fault, also protects wire 43 not receive external damage.

The electromagnet 4 generates a magnetic field in the vertical direction when being electrified, the N pole faces upwards, the bar magnet 10 vertically installs the N pole downwards, the magnetic field generated when the electromagnet 4 is electrified is the same as the magnetic field corresponding to the bar magnet 10 in direction, the same magnetic pole can generate repulsion force according to guidance of physics, and the repulsion force plays a role in lifting the upper half part of the pantograph, so that the overall stability is improved.

The sliding rheostat 17 can adjust the resistance value through the sliding sheet, so that the current passing through the lead 43 is changed, and the size of the magnetic field generated by the electromagnet 4 is controlled.

The positive and negative rotation motor 14 can drive the threaded rod 15 to rotate positively and negatively, the threaded rod 15 can drive the threaded hole block 16 to move the sliding piece in positive and negative rotation, and the resistance value is changed by moving the sliding piece, so that the current is changed.

The bar magnet 10 can generate suction force to the base when the pantograph is folded, so that the pantograph which does not work after being folded is stable and is not influenced by vibration of the motor car when other pantographs work.

The working principle is as follows: when the air pressure retracts into the transmission cylinder 2, the telescopic rod of the transmission cylinder 2 extends to push the sliding device 3 to move, the sliding device 3 compresses the pantograph lifting spring 5, the lower arm 7 is lifted upwards under the thrust action of the transmission cylinder 2, the lifting height of the arm can be adjusted by the lower guide rod 6, the upper arm 9 is driven to lift by the lifting of the lower arm 7, the upper arm 9 lifts the support 11 to a certain position, then the sliding plate 12 on the support 11 is contacted with a contact net to obtain current, the current is transmitted to a power system of a bullet train through the lead 43 to drive the bullet train to move, the balance of the sliding plate 12 can be adjusted by the upper guide rod 8, and the contact between the sliding plate 12 and the contact net is more uniform; when the bullet train runs at a high speed, the bullet train is subjected to great vibration, the vibration can enable the sliding plate 12 of the pantograph to vibrate up and down, so that the contact between the sliding plate 12 and a contact net is insufficient, at this time, the power supply of the electromagnet 4 is switched on, the electromagnet 4 is electrified to generate an N-pole upward magnetic field, the magnetic field is the same as the magnetic pole direction of the lower end of the bar magnet 10 on the upper arm rod 9, so that repulsion force is generated, the repulsion force is the supporting force for the upper arm rod 9, the contact between the sliding plate 12 lifted by supporting the upper arm rod 9 and the contact net is more compact, the power receiving effect is better, and; the vibration amplitude is different under the influence of different slope rails, different wind power and the like, and at this time, the size of the magnetic field of the electromagnet 4 needs to be adjusted to generate different repulsive force to support the bracket 11, so that the sliding plate 12 is in closer contact with the contact net; the magnetic force of the electromagnet 4 can be controlled according to the change of the current, a slide rheostat 17 is required to be added to control the change of the current under the condition of the same voltage, because the resistance of the slide rheostat 17 cannot be manually adjusted in practice, a device for adjusting a resistance slide sheet is added to the slide rheostat 17, the position of the slide sheet is changed through the movement of a forward and reverse rotating connecting threaded rod 15 of a forward and reverse rotating motor 14 so as to adjust the change of the resistance, and the current is adjusted under the condition of unchanged voltage, so that the size of a magnetic field can be adjusted according to different vibration conditions so as to change the supporting force of the bracket 11; when the motor car is to be stopped, firstly, the power supply of the electromagnet is cut off, the magnetic field of the electromagnet disappears, the corresponding supporting force on the bracket 11 disappears, then the lower arm rod 7 descends when the telescopic rod is contracted through the transmission cylinder 2, and simultaneously the upper arm rod 9 is driven to descend, the bow descending becomes faster under the condition of magnetic attraction because the strip magnet 10 is arranged in the upper arm rod 9 in the descending process, and the strip magnet 10 is attracted with the supporting base 1 after the bow descending is finished, so that the whole working process is finished; because the bar magnet 10 attracts and supports the base 1 when the pantograph does not work, the pantograph can be effectively prevented from vibrating and wearing due to the influence of vibration or wind power and the like under the idle condition.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In addition, in the drawings of the present invention, the filling pattern is only for distinguishing the pattern layer, and is not limited to any other pattern.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stable pantograph, includes support base (1), its characterized in that: the support is characterized in that a transmission cylinder (2) is fixedly mounted on one side of the upper end of a support base (1), a sliding device (3) is fixedly connected onto a telescopic rod of the transmission cylinder (2), electromagnets (4) are respectively fixedly mounted on the front and the back of the top end of the sliding device (3), a lower arm rod (7) is movably sleeved at the middle of the top end of the sliding device (3), two identical bow-rising springs (5) are sequentially and fixedly mounted from the back to the front of one side of the sliding device (3), an upper arm rod (9) is movably hinged to one end of the lower arm rod (7), a bar magnet (10) is fixedly mounted at the lower end of the upper arm rod (9), a support (11) is fixedly connected to one end of the upper arm rod (9), a lower guide rod (6) is movably sleeved on the other side of the upper end of the support base (1), and an upper guide rod, go up one end fixedly connected with support (11) of guide arm (8), the top fixed mounting of support (11) has slide (12), slide rheostat (17) is connected through wire (43) in electro-magnet (4), slide rheostat (17) top fixed mounting has screw hole piece (16), screw hole piece (16) middle part screw thread has cup jointed threaded rod (15), the one end fixedly connected with of threaded rod (15) is just reversing motor (14), just reversing motor (14) are placed on motor platform (13).

2. A stable pantograph according to claim 1, wherein: the electromagnet (4) comprises an iron core (41), an insulating protective layer (42) and a lead (43), wherein the iron core (41) is sleeved inside the insulating protective layer (42), and the lead (43) is annularly wound inside the insulating protective layer (42).

3. A stable pantograph according to claim 1, wherein: the electromagnet (4) generates a magnetic field in the vertical direction when being electrified, the N pole is upward, the bar magnet (10) vertically installs the N pole downward, and the magnetic field generated when the electromagnet (4) is electrified is the same as the magnetic field direction corresponding to the bar magnet (10).

4. A stable pantograph according to claim 1, wherein: the sliding rheostat (17) can adjust the resistance value through a sliding sheet.

5. A stable pantograph according to claim 1, wherein: the positive and negative rotation motor (14) can drive the threaded rod (15) to rotate positively and negatively, and the threaded rod (15) can drive the threaded hole block (16) to move the sliding piece in positive and negative rotation.

6. A stable pantograph according to claim 1, wherein: the bar magnet (10) can generate suction force to the base when the pantograph is folded.