CN112677830A

CN112677830A - Active driving type retraction supporting device, mobile contact network and operation method

Info

Publication number: CN112677830A
Application number: CN202110092604.3A
Authority: CN
Inventors: 于海文; 尚前博; 范彩虹; 牛国毅; 任大千
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-24
Filing date: 2021-01-24
Publication date: 2021-04-20

Abstract

The invention relates to an active driving type retracting and supporting device, a mobile contact network and an operation method, and the active driving type retracting and supporting device comprises an upright post, a supporting mechanism, a moving mechanism, a connecting piece, a motor and a chain, wherein the moving mechanism can move along the length direction of the upright post; one end of the supporting mechanism is movably connected with the moving mechanism; the motor drives the chain to rotate to drive the moving mechanism to move, so that the free end of the supporting mechanism drives the contact line and/or the catenary to move to a working position, a non-working position or switch between the working position and the non-working position. The invention can effectively avoid the condition of bending points in the prior art and avoid the technical defect of arc lines in the prior art; on the other hand, each upright post in the whole mobile contact network adopts an active driving type retracting and supporting device, so that the situation that the telescopic mechanism is not unfolded in place due to the fact that the telescopic mechanism is not pulled still in the prior art is avoided.

Description

Active driving type retraction supporting device, mobile contact network and operation method

Technical Field

The invention belongs to the technical field of mobile contact networks, and particularly relates to an active driving type retractable supporting device, a mobile contact network adopting the device and an operation method.

Background

According to the existing contact net, two ends of the contact net are provided with gantries, walking devices are arranged on the gantries and are respectively connected with two ends of a movable contact line assembly, and the walking devices can drive the contact line assembly to move when walking to drive the whole contact line to move.

The length of the contact net is generally 800 meters, and the length of the contact net can reach about 1700 meters for a ten thousand ton line. If the mode has huge defects, the scheme is that a tensioned contact line drives a contact line assembly in the whole mobile contact net to move from a non-working position to a working position, the contact line assembly is arranged on a telescopic mechanism, the telescopic mechanism retracts under a natural state, and the contact line is positioned at one side edge (the non-working position) of a railway; when the running gear at both ends moves toward the work position, drives the contact line of tensioning and moves from the non-work position toward the work position (railway top), and the power that control telescopic machanism expandes comes from the contact line, adopts the problem that this kind of mode exists to have: please refer to fig. 1.

1. Bending points are formed at the connecting positions of all contact line assemblies and the contact line in the moving section of the mobile contact line system, the bending of the contact line is a problem which needs to be avoided to the utmost extent, and the bending points are necessarily formed by adopting the mode. Taking a mobile contact network of 800 meters as an example, assuming that the distance between the upright columns is 20 meters, 40 upright columns are needed, the numbers are 1, 1+ N …, 20, … and 40 respectively, a walking device is arranged on the portal frame and is connected with two ends of the mobile contact line assembly respectively, the walking device can drive the first contact line assembly to move towards the working position (the first bending point can be generated and is most obvious) when walking, and only when the telescopic mechanisms in the first and the forty upright columns are stretched to move, the telescopic mechanisms on the second and the thirty-ninth upright columns can be driven to stretch and open, and the telescopic mechanisms are driven to move towards the middle position gradually from two ends in sequence. In a tensioned contact line, only a small force is required to form the bending point, which is more apparent when used in a longer distance moving contact system.

2. The gantry crane has the condition of immovable pulling, a walking device in the gantry moves to pull a first telescopic mechanism to extend, when the first telescopic mechanism is completely stretched, a catenary cable and/or a contact line between the walking device and the first upright post telescopic mechanism is stretched to the maximum moving amount and can not be pulled any more, and the immovable pulling condition occurs. The middle telescopic mechanism does not completely move to the working position, and the traveling devices at the two ends move to the maximum moving position on the gantry and cannot be pulled again. This solution can be pulled still and not in place, especially if there is no pulling in the middle part.

3. The contact line in the whole contact net moving section can form a large arc by adopting the mode, the width of the whole arc can exceed the power-taking width range of the pantograph, and the condition that the whole moving contact net cannot be used appears.

4. This way a gravity balancing device is provided at the slider to pull the slider up, or a spring is provided below the slider to drag it, or a spring is provided above the slider to pull the slider up to overcome the inherent weight of the slider. This reduces to some extent the force required to drive the retraction mechanism to extend. However, the problem is that when the traveling devices at the two ends are in place, the contact line cannot provide any more horizontally moving tension, and particularly for the telescopic mechanism of the upright at the middle position, even if the slider is provided with upward lifting force by the counterweight, when the contact line does not provide or provide any more stretching tension, the telescopic mechanism on the upright at the middle position of the moving contact line cannot be further unfolded, and the contact line cannot be effectively pushed to the working position.

Disclosure of Invention

From the above, the essential reasons for the defects are that the walking device is used for driving the contact wire to move horizontally, the tensioned contact wire between the two walking devices is used for driving the telescopic mechanism to move above the net railway through the tensioned contact wire, the walking device can drive the contact wire assembly to move, so that the contact wire assembly can approach or depart from the upright column in the horizontal direction, and the telescopic mechanism stretches and supports the contact wire assembly along with the movement of the contact wire assembly.

In the scheme, a small force at any position on a tensioned contact line can form a bending point, the stretching force of any contact net component is obtained from the stretching mechanism stretching from the side position of the contact net component, when the stretching mechanisms of the first stand column and the last stand column can not be stretched, any contact net component at the middle position can not provide stretching tension from the side position, the bending point can be formed, an arc line can be formed, and the situation of the stretching mechanism which can not be stretched exists.

In view of the above, the first aspect of the present invention provides an active driving type retractable supporting device for a mobile overhead line system, comprising a column, a supporting mechanism, a moving mechanism, a connecting member, a motor and a chain, wherein the supporting mechanism is connected with the column via a connecting rod, the connecting member is connected with the moving mechanism via a connecting rod, and the chain is connected with the supporting mechanism

The moving mechanism can move along the length direction of the upright column, one end of the connecting piece is directly or indirectly connected with the upright column, and the other end of the connecting piece is directly or indirectly connected with the supporting mechanism; one end of the supporting mechanism is directly or indirectly movably connected with the moving mechanism; the motor drives the chain to rotate to drive the moving mechanism to move, so that the free end of the supporting mechanism drives the contact line and/or the catenary to move to a working position, a non-working position or switch between the working position and the non-working position.

Further, the motor directly or indirectly drives the chain to rotate to drive the moving mechanism to move up and down, so that the free end of the supporting mechanism drives the contact line and/or the carrier cable to move towards a working position or a non-working position.

Further, still include drive sprocket, drive sprocket sets up on the motor, the motor drive sprocket rotates and drives the length direction removal of moving mechanism along the stand through the chain. .

Further, still include driven sprocket, drive sprocket passes through the chain and drives driven sprocket, the chain rotates and drives the moving mechanism and remove.

The device further comprises a direction rotating mechanism which is directly or indirectly arranged on the moving mechanism or the upright post, and the motor drives the moving mechanism to move up or down to drive the supporting mechanism movably connected with the direction rotating mechanism to move, so that the contact wire and/or the catenary in the supporting mechanism moves to a working position, a non-working position or is switched between the working position and the non-working position.

Furthermore, the supporting mechanism can realize the horizontal rotation of the whole folding and unfolding supporting device through the direction rotating mechanism.

Further, the direction rotating mechanism comprises a rotating part for providing horizontal direction rotation for the supporting mechanism and a rotating part for providing contraction rotation for the supporting mechanism.

Further, the direction rotating mechanism is arranged in the following manner:

the first method comprises the following steps: the rotating part for providing the supporting structure with horizontal rotation comprises a rotating shaft; the rotating part for providing the contraction rotation for the supporting mechanism comprises a hinge part, the rotating shaft is directly or indirectly arranged on the moving mechanism, the hinge part is arranged on the rotating shaft, and one end of the supporting structure is hinged with the hinge part;

and the second method comprises the following steps: a rotating member providing horizontal rotation to the support structure includes a hinge member; the rotating part for providing the support mechanism with the contraction rotation comprises a rotating shaft, the hinged part is directly or indirectly arranged on the moving mechanism, the rotating shaft is directly or indirectly arranged on the hinged part, and one end of the support structure is directly or indirectly movably connected with the rotating shaft;

and the third is that: the rotating member for providing the support structure with horizontal rotation comprises a first rotating member; the rotating part for providing the support mechanism with the contraction rotation comprises a second rotating part, the first rotating part is directly or indirectly connected with the moving mechanism, and one end of the support structure is directly or indirectly connected with the second rotating part;

and fourthly: the rotating part providing horizontal rotation for the supporting structure comprises a first ring, the rotating part providing contraction rotation for the supporting structure comprises a second ring, the first ring is directly or indirectly connected with the moving mechanism, one end of the supporting structure is directly or indirectly connected with the second ring, and the first ring is buckled with the second ring; or

And a fifth mode: the universal hinge is adopted, and one end of the supporting structure is directly or indirectly arranged on the moving mechanism through the universal hinge. Further, the direction rotating mechanism is directly or indirectly arranged on the moving mechanism and/or the upright post;

one end of the supporting mechanism is movably connected with the moving mechanism directly or indirectly through a direction rotating mechanism, and one end of the connecting piece is movably connected with the upright post through a direction rotating mechanism; or

One end of the supporting mechanism is directly or indirectly movably connected with the moving mechanism through the direction rotating mechanism, and the other end of the connecting piece is movably connected with the supporting mechanism.

Furthermore, the supporting mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are both connected with the direction rotating mechanism or movably connected with the moving mechanism, the other end of the first connecting rod and the other end of the second connecting rod are movably connected with a suspension assembly, and a catenary and/or a contact line are arranged on the suspension assembly.

Preferably, the suspension assembly is arranged in a first way: the suspension assembly is arranged at the other end of the supporting mechanism; the suspension assembly is provided with a carrier cable and/or a contact wire; or

The setting mode is two: the suspension component is connected with the suspension component, and a contact wire is directly or indirectly arranged at the other end of the insulator.

Furthermore, a limiting structure for assisting the moving mechanism to move in the vertical direction is arranged on the upright post; the limiting structure comprises a slide way, a slide groove, a slide rail, a track or a limiting frame, and the moving mechanism moves in the slide way, the slide groove, the slide rail, the track or the limiting frame along the length direction of the upright post.

The invention provides a mobile contact network, which adopts more than two active driving type retracting and releasing support devices, wherein the other ends of the support mechanisms in the active driving type retracting and releasing support devices are directly or indirectly provided with catenary cables and/or contact wires, and the catenary cables and/or the contact wires which are directly or indirectly arranged at the free ends of the support mechanisms are kept at the same horizontal height and basically form a straight line through respective motors on the upright posts.

Further, a motor arranged in each active driving type retracting and releasing supporting device drives a corresponding moving mechanism to move, and the moving strokes of each moving mechanism in the corresponding upright post are equal, so that the free end of the supporting mechanism drives the contact line and/or the catenary to move to a working position or a non-working position.

Furthermore, in the process that a plurality of supporting mechanisms in the mobile overhead line system are switched to rotate in the working position state, the non-working position state or between the working position and the non-working position, the supporting mechanisms can rotate in the horizontal direction through the direction rotating mechanism.

The first method comprises the following steps: at least one end of the movable contact net is provided with a portal frame, a movable trolley and a driving device are arranged on the portal frame, and the driving device is used for driving the movable trolley to move on a cross beam of the portal frame to drive the catenary cable and/or the contact line to move;

the second setting structure is as follows: at least one end of the movable contact net is provided with a gravity compensation device, and the catenary cable and/or the contact line directly or indirectly act on the gravity compensation device;

the third setting structure is as follows: at least one end of the movable contact net is provided with a spring mechanism, and the carrier cable and/or the contact line directly or indirectly act on the spring mechanism;

the fourth setting structure is: at least one end of the movable contact net is provided with a dragging mechanism, and the pulling force provided by the dragging mechanism directly or indirectly acts on the catenary cable and/or the contact line; or

The fifth setting mechanism is: the two ends of the movable contact net are combined in any two of the first to the fourth ways.

The third aspect of the invention provides an operation method of a mobile overhead line system, which adopts the mobile overhead line system and comprises the following operation steps:

the motors arranged in each active driving type retraction supporting device drive the corresponding moving mechanisms to move, so that the moving mechanisms move upwards along the length direction of the upright posts;

the moving mechanism drives one end of the supporting mechanism to move upwards along the length direction of the upright post; the moving strokes of each moving mechanism on the corresponding upright post are equivalent;

the free end of each supporting mechanism, namely the other end of each supporting mechanism moves along the direction far away from the upright post to drive the contact line and/or the catenary cable to move to the working position;

the contact wire and/or the carrier cable directly or indirectly arranged on the free end of each supporting mechanism basically form a straight line in the working position, and the contact wire and/or the carrier cable are kept at the same horizontal height.

The fourth aspect of the present invention provides a method for operating a mobile catenary, which is characterized in that: by adopting the mobile contact net, the operation steps are as follows:

the motors arranged in each active driving type retraction supporting device drive the corresponding moving mechanisms to move, so that the moving mechanisms move downwards along the length direction of the upright posts;

the moving mechanism drives one end of the supporting mechanism to move downwards along the length direction of the upright post; the moving strokes of each moving mechanism on the corresponding upright post are equivalent;

the free end of each supporting mechanism, namely the other end of the supporting mechanism, moves along the direction close to the upright post to drive the contact wire and/or the carrier cable to move to the non-working position.

Preferably, the method further comprises the step of balancing the tension imbalance between the left and right sides of the supporting mechanism by the carrier cable and/or the contact wire:

when the supporting mechanism is in a working position state, a non-working position state or a process of switching the rotation of the supporting mechanism between the working position and the non-working position,

when the tension of the messenger cables and/or the contact wires on the left side and the right side acting on the supporting mechanism is unbalanced, the supporting mechanism can rotate in the horizontal direction through the direction rotating mechanism, so that the tension of the messenger cables and/or the contact wires on the left side and the right side acting on the supporting mechanism becomes balanced.

Preferably, when the other end of the supporting mechanism drives the contact wire and/or the catenary to move to the working position or the non-working position, the moving trolley on the gantry is driven to drive the catenary and/or the contact wire to move.

Compared with the prior art, the technical scheme adopted by the invention has the following beneficial effects:

1. compared with the prior art, the invention uses the motor to provide the main body type drive, and the driving moving mechanism can move along the length direction of the upright post, so that the other end of the supporting mechanism moves along the direction far away from the upright post to drive the contact line and/or the catenary to move to the working position; or the other end of the supporting mechanism moves along the direction close to the upright post to drive the contact line and/or the carrier cable to move to the non-working position. By adopting the active driving mode, the bending point condition in the prior art can be effectively avoided, and the active driving type retracting and supporting device provided by the invention is integrally adopted in the movable contact network, so that the whole carrier cable and/or contact wire can be basically kept in the same straight line no matter in the process of moving the carrier cable and/or contact wire from a non-working position to a working position or from the working position to the non-working position, and the technical defect of arc lines in the prior art is avoided; on the other hand, each upright post in the whole mobile contact network adopts an active driving type retracting and supporting device, so that the situation that the telescopic mechanism is not unfolded in place due to the fact that the telescopic mechanism is not pulled still in the prior art is avoided.

2. The scheme provided by the invention has the advantages that the mechanism is reliable, the failure rate is low, the normal operation of the mobile contact network can be effectively ensured, particularly, the active driving type retraction supporting device provided by the scheme is adopted, the length of the mobile contact network can be effectively increased, and the active driving type retraction supporting device is applied to a ten-thousand-ton line goods transportation line.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a prior art solution;

FIG. 2 is a first embodiment of the actively-driven retractable supporting apparatus of the present invention;

FIG. 3 is a second embodiment of the actively-driven retractable supporting apparatus of the present invention;

FIG. 4 is a schematic view of an embodiment of the actively-driven retractable supporting device with a directional rotating mechanism;

FIG. 4A is a second embodiment of the actively driven retractable supporting device with a directional rotation mechanism according to the present invention;

FIG. 4B is a partial schematic view of FIG. 4A;

FIG. 5 is a schematic view of the actively-driven retractable support apparatus of the present invention with a suspension assembly;

FIG. 6 is a schematic view of the mobile catenary positioned above a railway in accordance with the present invention;

FIG. 7 is a schematic view of the mobile catenary positioned at the side of a railway according to the present invention;

FIG. 8 is a schematic view of a mobile catenary of the present invention in a work position;

FIG. 9 is a first flowchart of a method of operating a mobile catenary of the present invention;

fig. 10 is a flow chart of the operation method of the mobile overhead line system of the present invention.

In the figure: 1. a column; 2. a support mechanism; 21. a first link; 22. a second link; 3. a moving mechanism; 4. a connecting member; 5. a motor; 6. a chain; 7. a contact line; 8. a catenary cable; 9. a drive sprocket; 10. a driven sprocket; 11. a direction rotating mechanism; 12. a rotating shaft; 13. an articulation member; 14. a first ring; 15. a second ring; 16. a railway; 17. a track; 18. an insulator; 19. a suspension assembly; 20. wire clamps; 21. a gravity compensation device; 22. moving the trolley; 23. a drive device; 24. suspending a terminal anchor device; 25. the lower anchor device is fixedly contacted and suspended; 26. a gantry; 27. a spring mechanism.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Referring to fig. 2 and fig. 3, the embodiment provides an active driving type retractable supporting device for a mobile contact system, which includes an upright post 1, a supporting mechanism 2, a moving mechanism 3, a connecting member 4, a motor 5 and a chain 6, wherein the moving mechanism 3 can move along the length direction of the upright post 1, one end of the connecting member 4 is directly or indirectly connected with the upright post 1, and the other end of the connecting member 4 is directly or indirectly connected with the supporting mechanism 2; one end of the supporting mechanism 2 is directly or indirectly movably connected with the moving mechanism 3; the motor 5 drives the chain 6 to rotate to drive the moving mechanism 3 to move, so that the free end of the supporting mechanism 2 drives the contact line 7 and/or the catenary 8 to move to a working position, a non-working position or switch between the working position and the non-working position.

As a preferred embodiment, in this embodiment, the motor 5 drives the chain 6 to rotate to drive the moving mechanism 3 to move up and down, so that the free end of the supporting mechanism drives the contact wire 7 and/or the catenary wire 8 to move towards the working position or towards the non-working position, as shown in fig. 2, the motor 5 drives the chain 6 to rotate to drive the moving mechanism 3 to move down (as shown by arrow a in fig. 2), and the free end of the supporting mechanism 2, i.e. the other end of the supporting mechanism 2 moves in a direction close to the upright 1 (as shown by arrow B in fig. 2), and drives the contact wire 7 and/or the catenary wire 8 to move towards the non-working position. The non-working position is positioned at one side of the railway 16, the freight train stops after entering the station, and the supporting mechanism 2 moves away to make room above the railway 16, so that the loading and unloading operation is convenient.

Fig. 2 shows the case with a catenary 8 and a contact wire 7, but in a mobile catenary, the contact wire 7 may be provided only at the free end, or the catenary 8 may be provided only on the support means 2. In addition, it is necessary to supplement that the active driving type retraction supporting device in this embodiment is provided with an insulator 18, and the insulator 18 can be arranged on both the connecting member 4 and/or the supporting mechanism 2, so as to perform an electrical isolation function.

As shown in fig. 3, the motor 5 drives the chain 6 to rotate to drive the moving mechanism 3 to move upwards (as shown by arrow a in fig. 3), and the free end of the supporting mechanism 2, i.e. the other end of the supporting mechanism 2 moves in a direction away from the upright post 1 (as shown by arrow B in fig. 3), so as to drive the contact line 7 and/or the messenger wire 8 to move to the working position; the working position is located above the railway 16, which facilitates the movement of the freight train in and out.

As a preferred embodiment, the active driving type retraction supporting device provided in this embodiment includes a driving sprocket 9, the driving sprocket 9 is disposed on the motor 5, and the motor 5 drives the driving sprocket to rotate and drives the moving mechanism 3 to move along the length direction of the upright 1 through the chain 6. Preferably, the vertical column driving device further comprises a driven sprocket 10, the driving sprocket 9 drives the driven sprocket 10 through a chain 6, and the chain 6 rotates to drive the moving mechanism 3 to move along the length direction of the vertical column 1.

As a preferred embodiment, the active driving type retracting and supporting device provided by this embodiment further includes a direction rotating mechanism 11, the direction rotating mechanism is directly or indirectly disposed on the moving mechanism or the upright column, and the motor drives the moving mechanism to move up or down to drive the supporting mechanism movably connected to the direction rotating mechanism to move, so that the contact line and/or the catenary in the supporting mechanism moves to the working position, the non-working position, or the working position and the non-working position. The supporting mechanism can realize the horizontal rotation of the integral folding and unfolding supporting device through the direction rotating mechanism.

The direction rotation mechanism in this embodiment includes a rotation member for providing the support mechanism with rotation in the horizontal direction and a rotation member for providing the support mechanism with rotation in the retraction direction.

As a preferred embodiment, the direction rotating mechanism 11 in this embodiment is provided in the following manner:

as shown in fig. 4, the first: the rotating member providing horizontal rotation for the support structure comprises a rotating shaft 12; the rotating member providing the retracting rotation for the support mechanism comprises a hinge 13; the first rotating part is directly or indirectly connected with the moving mechanism, and one end of the supporting structure is directly or indirectly connected with the second rotating part. In the embodiment, the rotating shaft 12 is arranged on the moving mechanism 3, the hinge 13 is arranged on the rotating shaft 12, and one end of the supporting mechanism 2 is hinged with the hinge 13;

similarly, preferably, not shown in the present embodiment, the rotating member for providing the support structure with a horizontal rotation comprises a hinge member; the rotating part for providing the support mechanism with the contraction rotation comprises a rotating shaft, the hinged part is directly or indirectly arranged on the moving mechanism, the rotating shaft is arranged on the hinged part, and one end of the support structure is movably connected with the rotating shaft;

in addition, as for the embodiment of the direction rotating mechanism, for example, a rotating shaft 12 is provided on the moving mechanism 3, and a sleeve ring is provided at one end of the supporting mechanism 2, so that the horizontal rotation can be realized, and the sleeve ring has a swinging space in the retracting and rotating direction.

Preferably, the rotating member for providing the support structure with rotation in the horizontal direction comprises a first rotating member; the rotating part for providing the support mechanism with the contraction rotation comprises a second rotating part, the first rotating part is directly or indirectly connected with the moving mechanism, and one end of the support structure is directly or indirectly connected with the second rotating part.

In the embodiment, the first rotating part is arranged on the moving mechanism, and one end of the supporting structure is arranged on the second rotating part; the first rotating piece is movably linked with the second rotating piece.

As shown in fig. 4A and 4B, the second: the device comprises a first ring 14 and a second ring 15, wherein the first ring 14 is arranged on the moving mechanism 3, the first ring is directly or indirectly connected with the moving mechanism, one end of the supporting structure is directly or indirectly connected with the second ring, one end of the supporting mechanism 2 is arranged on the second ring 15 in the embodiment, and the first ring 14 is buckled with the second ring 15; in this embodiment, the moving mechanism 3 is provided with a lantern ring, one end of the supporting mechanism 2 is provided with another lantern ring, and the two lantern rings are buckled to realize rotation in the horizontal direction and swing in the telescopic direction.

And the third is that: one end of the supporting mechanism 2 is directly or indirectly arranged on the moving mechanism 3 through the universal hinge.

The direction rotating mechanism in the embodiment is directly or indirectly arranged on the moving mechanism 3 and/or the upright post 1; as shown in fig. 4, in this embodiment, one end of the supporting mechanism 2 is movably connected to the moving mechanism 3 directly or indirectly through a direction rotating mechanism, and one end of the connecting member 4 is movably connected to the upright 1 through a direction rotating mechanism;

as shown in fig. 2, in this embodiment, one end of the supporting mechanism 2 is movably connected to the moving mechanism 3 directly or indirectly through a direction rotating mechanism, and one end of the connecting member 4 is movably connected to the supporting mechanism 2. Of course. As a preferred embodiment, said connecting element 4 can be flexible, fixed at one end to the upright 1 and at the other end to the support means 2.

In this embodiment, the supporting mechanism 2 includes a first connecting rod 21 and a second connecting rod 22, one end of the first connecting rod 21 and one end of the second connecting rod 22 are both connected to the direction rotating mechanism 11 or movably connected to the moving mechanism 3, the other end of the first connecting rod 21 and the other end of the second connecting rod 22 are movably connected to a suspension assembly 19, and the suspension assembly 19 is provided with a catenary 8 and/or a contact wire 7.

Preferably, as shown in fig. 4A, the suspension assembly 19 is arranged in a first way: the suspension assembly 19 is arranged at the other end of the supporting mechanism 2; the suspension assembly 19 is provided with a carrier cable 8 and/or a contact wire 7; or

The setting mode is two: as shown in fig. 5, the insulator further comprises an insulator 18, one end of the insulator 18 is connected with a suspension assembly 19, and the other end of the insulator 18 is directly or indirectly provided with a contact wire 7. Preferably, the contact wire 7 is held by a clamp 20.

As a preferred embodiment, the upright post 1 is provided with a limiting structure for assisting the moving mechanism 3 to move in the vertical direction; the limiting structure comprises a slide way, a sliding groove, a sliding rail, a rail 17 or a limiting frame, and the moving mechanism 3 moves in the slide way, the sliding groove, the sliding rail, the rail 17 or the limiting frame along the length direction of the upright post 1. The device can also be arranged by being attached to the surface of the upright post 1 in a direct hanging mode, and rollers are arranged on the moving mechanism 3 so as to reduce the friction between the moving mechanism 3 and the upright post 1.

In this embodiment, the motor 5 drives the moving mechanism 3 to move up and down along the length direction of the upright post 1 on the track 17 through the chain 6, so that the free end of the supporting mechanism 2 drives the contact wire 7 and/or the catenary 8 to move to the working position, the non-working position or switch between the working position and the non-working position.

It should be added that, in the active driving type retractable supporting device for a mobile catenary provided in this embodiment, when the supporting mechanism 2 is in the working position state (above the railway 16), or in the non-working position state (beside the railway 16), or when the supporting mechanism 2 is switched to rotate between the working position and the non-working position, the supporting mechanism 2 can rotate in the horizontal direction by the direction rotating mechanism 11. The telescopic mechanism is intended to effect movement of the messenger wire 8 and/or the contact wire 7 to the active or inactive position. Moving the catenary is required to put the catenary 8 and/or the contact wire 7 under tension. When the tension on the two sides of the supporting mechanism 2 is unbalanced, on one hand, the unbalanced tension is easy to deform the supporting mechanism 2 itself under the long-term action, and on the other hand, construction errors are easy to exist between the upright post 1 and the upright post 1, the installation angle of the supporting mechanism 2, and the like, especially the influence of thermal expansion and cold contraction on the carrier cable 8 and/or the contact line 7. For example, when the whole catenary 8 is in a working state, the existing telescopic cantilever cannot rotate in the horizontal direction, the catenary 8 and/or the contact wire 7 of the existing telescopic cantilever are/is fixed on the cantilever (the supporting mechanism 2), the catenary 8 and/or the contact wire 7 between the upright 1 and the upright 1 extend through a heated expansion wire body, so that the catenary 8 between the upright 1 and the upright 1 cannot be tensioned, and the catenary 8 and the contact wire 7 are fixed on the cantilever, so that tension provided by the tensioning devices on the portal frames 26 at two ends cannot be gradually transmitted. In the present invention, the direction rotating mechanism 11 is used, the supporting mechanism 2 can rotate to extend and retract the supporting mechanism 2, and the supporting mechanism 2 can realize the horizontal rotation of the whole supporting mechanism 2 through the direction rotating mechanism 11.

Therefore, in the present embodiment, when the support mechanism 2 is in the working position state, or in the non-working position state, or when the support mechanism 2 is switched between the working position and the non-working position to rotate, the support mechanism 2 can rotate in the horizontal direction by the direction rotating mechanism 11. The problem that tension on two sides of a supporting mechanism is unbalanced is effectively solved, and the problem that the tension on two sides of the supporting mechanism is unbalanced can be solved according to the pulling provided by two ends of the carrier cable 8 and/or the contact wire 7, so that the carrier cable 8 and the contact wire 7 are always kept in a tensioning state.

As shown in fig. 6 and 7, a second aspect of this embodiment provides a mobile overhead line system, in which two or more active-driven retractable supporting devices as described above are used, in which the other end of the supporting mechanism 2 in the plurality of active-driven retractable supporting devices is directly or indirectly provided with a catenary 8 and/or a contact wire 7, and the catenary 8 and/or the contact wire 7 directly or indirectly mounted at the free end of the supporting mechanism 2 are maintained at the same horizontal height and substantially form a straight line by the respective motors 5 on the columns 1.

Preferably, a motor 5 arranged in each active driving type retracting and releasing supporting device drives the corresponding moving mechanism 3 to move, and the moving stroke of each moving mechanism 3 in the corresponding upright post 1 is equal, so that the free end of the supporting mechanism 2 drives the contact line 7 and/or the catenary cable 8 to move to a working position or a non-working position.

Preferably, in the process of switching the rotation of the supporting mechanism 2 between the working position state, the non-working position state or the working position and the non-working position of a plurality of supporting mechanisms 2 in the mobile overhead line system, the supporting mechanism 2 can rotate in the horizontal direction through the direction rotating mechanism 11.

Remove at least one end of contact net and set up the portal, as shown in fig. 8, first kind sets up the structure and is: the embodiment also comprises a gantry 26 arranged at two ends of the mobile overhead line system, wherein the gantry 26 is provided with a mobile trolley 22 and a driving device 23, and the driving device 23 is used for driving the mobile trolley 22 to move on a beam of the gantry 26 to drive the catenary cable 8 and/or the contact line 7 to move;

as shown in fig. 6, at least one end of the mobile overhead line system is provided with a gravity compensation device, and the second arrangement structure is as follows: in the embodiment, gravity compensation devices 21 are arranged at two ends of the mobile contact network, and two ends of the catenary 8 and/or the contact line 7 directly or indirectly act on the gravity compensation devices 21; it should be added that the gravity compensation device provided in this embodiment may adopt a weight. Alternatively, the first and second electrodes may be,

as shown in fig. 7, at least one end of the mobile contact net is provided with a spring mechanism, and the third setting structure is as follows: in this embodiment, the two ends of the moving contact net are provided with spring mechanisms 27, and the two ends of the catenary 8 and/or the contact line 7 directly or indirectly act on the spring mechanisms 27.

Preferably, the fourth arrangement structure is: not shown in the figure, at least one end of the mobile contact net is provided with a dragging mechanism, and the pulling force provided by the dragging mechanism directly or indirectly acts on the catenary cable and/or the contact line; or

Preferably, the fifth setting mechanism is: the two ends of the movable contact net are combined in any two of the first to the fourth ways.

As shown in fig. 8, a suspension terminal anchoring device 24 is further provided in the embodiment, the driving device 23 is used for driving the movable trolley 22 to move on the cross beam of the portal 26, the suspension terminal anchoring device 24 is provided on the movable trolley 22, and the two ends of the catenary 8 and/or the contact wire 7 are respectively anchored on the suspension terminal anchoring devices 24 of the portal 26 at the two ends. The gantry 26 is also provided with a fixed contact suspension lower anchoring device 25, and the fixed contact wire 7 is anchored on the fixed contact suspension lower anchoring device 25.

Description of the working principle: as shown in fig. 8, which is a schematic structural diagram of the catenary 8 and/or the contact wire 7 in the working position, when moving from the working position to the non-working position, the driving devices 23 on the two side gantries 26 drive the moving trolley 22 to move, and the lower anchor device 24 of the suspension terminal suspended below the moving trolley 22 follows up, so as to drive the catenary 8 and/or the contact wire 7 to move from the two ends to the non-working position; meanwhile, the moving mechanism 3 in each active driving type retraction supporting device moves up and down on the upright post 1, so that the other ends of all the supporting mechanisms 2 move along the direction close to the corresponding upright post 1 to drive the whole contact line 7 and/or the carrier cable 8 to move to a non-working position;

when the active driving type retractable supporting device moves from a non-working position to a working position, the moving mechanism 3 in each active driving type retractable supporting device moves upwards on the upright post 1, so that the other ends of all the supporting mechanisms 2 move in the direction away from the corresponding upright post 1 to drive the whole contact line 7 and/or the messenger wire 8 to expand and move to the working position; at the same time, the driving device 23 on the gantry 26 is actuated to drive the moving trolley 22 to move. The movement of the entire contact wire 7 and/or the messenger 8 to the working position is effected. In the process, the active driving type retracting and releasing supporting device is adopted in the embodiment, so that the bending point condition in the prior art can be effectively avoided, the active driving type retracting and releasing supporting device provided by the invention is integrally adopted in the mobile contact network, and no matter in the process that the carrier cable 8 and/or the contact wire 7 are moved from a non-working position to a working position or in the general process that the carrier cable 8 and/or the contact wire 7 are moved from the working position to the non-working position, the whole carrier cable 8 and/or the contact wire 7 can be basically kept in the same straight line, so that the technical defect that an arc line occurs in the prior art is avoided; on the other hand, each upright post 1 in the whole mobile contact network adopts an active driving type retracting and supporting device, so that the situation that the telescopic mechanism cannot be unfolded in place due to the fact that the telescopic mechanism cannot be pulled still in the prior art is avoided.

In this embodiment, the motors 5 respectively arranged in each active driving type retracting and releasing support device drive the corresponding moving mechanisms 3 to move, so that the free ends of the support mechanisms 2 drive the contact wires 7 and/or the catenary cables 8 to move to working positions or non-working positions.

It should be noted that the amount of movement of the moving mechanism 3 driven by the motor 5 provided for each of the motors is equivalent to the amount of movement of the moving mechanism. The driving mode provided by the invention has the advantage that the movement amount of the respective moving mechanism 3 on the upright 1 is equivalent in the long-term working process. The problem that the movement amount of the moving mechanism 3 is inconsistent in the long working process in a plurality of upright columns 1 can not be solved.

In the process of switching the rotation of the supporting mechanisms 2 (in the process of folding and unfolding) in the working position state, the non-working position state or between the working position and the non-working position of the plurality of supporting mechanisms 2 in the mobile overhead line system, the supporting mechanisms 2 can rotate in the horizontal direction through the direction rotating mechanism 11. Of course, in this solution, the connecting part 4 is connected to the upright 1 by means of the same directional rotation mechanism 11, which ensures that the connecting part 4 can rotate in both the telescopic direction and the horizontal direction.

As described in the foregoing embodiments for many times, in the related art, the tensioned catenary 8 and/or the contact wire 7 are adopted, and the expansion and contraction structure is driven to expand or contract by the translation of the contact wire 7 and/or the catenary 8, which has a problem that the stretching force of any one contact net assembly is obtained from the expansion and contraction mechanism that is stretched from the lateral position of the contact net assembly, when the expansion and contraction mechanisms of the first and last columns 1 cannot be stretched any more, any contact net assembly in the middle position cannot provide stretching force from the lateral position any more, and there are bending points, which form an arc line, and there are cases of the expansion and contraction mechanism that is not stretched.

The scheme is that the free end of the telescopic structure is pulled to open or contract the telescopic structure by the translation of the tensioned catenary 8 and/or the contact line 7 in the whole mobile contact network. The problem with which this is the case has already been explained above.

The other mode is that a tensioned steel wire rope is adopted at one side of an upright post 1 in the whole mobile contact network to pull the sliding end of a moving mechanism 3 in each upright post 1, a branch pull rope is connected to the corresponding position of each upright post 1 and penetrates through the upper surface of the tensioned steel wire rope for the length of the whole mobile contact network, each branch is respectively connected to the sliding end, and the sliding ends in each branch are driven to slide up or slide down by the left and right movement of the tensioned steel wire rope. This approach also has disadvantages:

1. because the movement of the sliding blocks is controlled only by one tensioned steel wire rope, in the process of stressed movement, each branch point can form a tension point when acting on the steel wire rope due to the weight of the sliding end of each branch point, the tension points cannot be kept on the same straight line, and the tensioned steel wire rope can also form an arc line and a bending point, so that the most serious result is that the sliding forming amount of the corresponding sliding end on each upright post 1 is different, the horizontal movement of the carrier cable 8 and/or the contact wire 7 is different under the action of the telescopic mechanism, the horizontal movement stroke of the carrier cable 8 and/or the connection wire is unequal, the carrier cable 8 and/or the contact wire 7 generates an arc line, and the pantograph cannot effectively take electricity seriously; in addition, the inconsistent stroke of the sliding end can also cause the inconsistent respective horizontal height of the free end of the telescopic mechanism, so that the carrier cable 8 and/or the contact wire 7 cannot be maintained at the same horizontal height, and the problem that the pantograph cannot contact the contact wire 7 when power is taken can occur.

2. In the using process of the steel wire rope, the long-term tension at the two ends easily causes the length deformation of the steel wire rope to increase, the closer the steel wire rope to the pulling motor 5, the larger the bearing tension of the steel wire rope, the more the deformation increment of each branch is gathered, the influence on the pulling sliding quantity of the sliding end in each branch can be generated, the problem of the improper sliding quantity can be caused, and the radian or the bending point reflected on the carrier cable 8 and/or the contact line 7 is more obvious under the action of the telescopic mechanism.

3. The problem of the expend with heat and contract with cold of wire rope itself, remove the contact net and need can work at 20 degrees below zero, 40 big temperature difference ranges on zero, according to the length 800 meters of ordinary contact net, the expend with heat and contract with cold problem of that wire rope also can lead to the stand 1 to go up the amount of movement of moving end improper. In the case of a longer contact system, the moving end on the upright post 1 near the pulling motor 5 moves in place, and the moving end in the upright post 1 farther away does not move in place.

In practical working conditions, the three problems are shared, and the contact line 7 and/or the carrier cable 8 have bending points through the amplification of the telescopic mechanism, so that an arc line can be formed, the telescopic mechanism cannot be unfolded or cannot be unfolded.

Therefore, the driving mechanism provided by the invention is configured in each upright post 1 by adopting the modes of the motor 5, the push rod, the screw rod, the chain wheel and the like, so that the equivalent movement amount of the moving mechanism 3 is effectively ensured. Of course, the motor 5 may be used to pull the gravity compensation device 21. The weight of the gravity compensation device 21 and the length of the steel wire rope are kept consistent under the same external parameters, such as temperature and humidity. The expansion and contraction quantities of the steel wire rope on each upright post 1 are consistent, so that the stroke quantities of the moving mechanism 3 moving on the upright posts 1 are equivalent, the fact that the carrier cable 8 and/or the contact line 7 at the free end of the supporting mechanism 2 are kept at the same horizontal height and form a straight line basically can be effectively guaranteed, the problem of arc lines in the related technology is effectively solved, the problem of bending points is solved, and the problem of pulling immobility is solved.

On the other hand, the embodiment also provides an operation method of the mobile overhead line system, which includes the following operation steps: as shown in figure 9 of the drawings,

a motor 5 arranged in each active driving type retraction supporting device drives a corresponding moving mechanism 3 to move, so that the moving mechanism 3 moves upwards along the length direction of the upright post 1;

the moving mechanism 3 drives one end of the supporting mechanism 2 to move upwards along the length direction of the upright post 1; the moving strokes of each moving mechanism 3 on the corresponding upright post 1 are equivalent;

the free end of each supporting mechanism 2, namely the other end of each supporting mechanism 2 moves along the direction far away from the upright post 1 to drive the contact wire 7 and/or the carrier cable 8 to move to the working position;

the contact wire 7 and/or the carrier wire 8 arranged directly or indirectly at the free end of each support means 2 form a substantially straight line in the operating position, while the contact wire 7 and/or the carrier wire 8 remain at the same level.

In another aspect of this embodiment, an operation method of a mobile catenary is provided, where the operation method of the mobile catenary includes: as shown in fig. 10.

A motor 5 arranged in each active driving type retraction supporting device drives a corresponding moving mechanism 3 to move, so that the moving mechanism 3 moves downwards along the length direction of the upright post 1;

the moving mechanism 3 drives one end of the supporting mechanism 2 to move downwards along the length direction of the upright post 1; the moving strokes of each moving mechanism 3 on the corresponding upright post 1 are equivalent;

the free end of each supporting mechanism 2, namely the other end of the supporting mechanism 2, moves in the direction close to the upright post 1 to drive the contact wire 7 and/or the carrier cable 8 to move to the non-working position.

The contact wire 7 and/or the carrier wire 8 arranged directly or indirectly at the free end of each support means 2 form a substantially straight line in the inoperative position, while the contact wire 7 and/or the carrier wire 8 remain at the same level.

In this embodiment, when the other end of the support mechanism 2 drives the contact wire 7 and/or the catenary wire 8 to move to the working position or to the non-working position, the trolley 22 on the gantry 26 drives the catenary wire 8 and/or the contact wire 7 to follow.

The contact line and/or the carrier cable directly or indirectly arranged on the free end of each supporting mechanism form a straight line basically when in a non-working position, and the contact line and/or the carrier cable are kept at the same horizontal height

In the operation method, the driving mechanism drives the moving mechanism 3 to move, and simultaneously, the moving trolley 22 on the gantry 26 is driven to drive the suspension terminal lower anchoring device 24 to move to the working position to be electrically connected with the fixed contact suspension lower anchoring device 25. When the movable contact net is in a working position state, the freight train can drive in or out.

The driving mechanism drives the moving mechanism 3 to move, and simultaneously, the moving trolley 22 on the gantry 26 is driven to drive the suspension terminal lower anchoring device 24 to be disconnected from the fixed contact suspension lower anchoring device 25 and move to the non-working position. At this time, the mobile contact network is in a non-working position state, and the freight train can perform cargo handling operation, maintenance operation and the like.

The embodiment also comprises the step of balancing the tension unbalance of the carrier cable 8 and/or the contact line 7 on the left side and the right side of the supporting mechanism 2:

when the supporting mechanism 2 is in the working position state, the non-working position state or the process of switching the rotation of the supporting mechanism 2 between the working position and the non-working position,

when the tension of the carrier cable 8 and/or the contact line 7 acting on the supporting mechanism 2 on the left and right sides is unbalanced, the supporting mechanism 2 can rotate in the horizontal direction through the direction rotating mechanism 11, so that the tension of the carrier cable 8 and/or the contact line 7 acting on the supporting mechanism 2 on the left and right sides becomes balanced.

In the process of switching the rotation of the supporting mechanism 2 in the working position state, the non-working position state or between the working position and the non-working position, the supporting mechanism 2 on each upright post 1 in the mobile contact network can rotate in the horizontal direction through the corresponding direction rotating mechanism 11. The technical scheme provided in the implementation can also automatically adjust according to the pulling provided by the two ends of the catenary 8 and/or the contact wire 7, so that the catenary 8 and the contact wire 7 are always kept in a tensioning state, but the technical problem cannot be solved by the existing technical mode, and the beneficial effect brought by the technical scheme of the invention cannot be achieved.

Preferably, the trolley 22 on the gantry 26 is driven to move the catenary wire 8 and/or the contact wire 7 when the other end of the support mechanism 2 moves the contact wire 7 and/or the catenary wire 8 to the working position or to the non-working position.

The operation method adopts the active driving mode, so that the bending point condition in the prior art can be effectively avoided, and the technical defect of arc lines in the prior art is avoided; on the other hand, each upright post 1 in the whole mobile contact network adopts an active driving type retracting and supporting device, so that the situation that the telescopic mechanism cannot be unfolded in place due to the fact that the telescopic mechanism cannot be pulled still in the prior art is avoided.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art will include within their scope variations, modifications, substitutions and alterations.

Claims

1. Remove contact net initiative drive formula receive and release strutting arrangement, its characterized in that: comprises a column, a supporting mechanism, a moving mechanism, a connecting piece, a motor, a chain, a contact wire and/or a carrier cable, wherein

2. The actively-driven retraction support device according to claim 1, characterized in that: the motor directly or indirectly drives the chain to rotate to drive the moving mechanism to move up and down, so that the free end of the supporting mechanism directly or indirectly drives the contact wire and/or the catenary to move to a working position or a non-working position.

3. The actively-driven retraction support device according to claim 2, characterized in that: the driving chain wheel is driven by the motor to rotate, and the moving mechanism is driven by the chain to move along the length direction of the upright post.

4. The actively-driven retraction support device according to claim 3, characterized in that: the chain transmission mechanism further comprises a driven chain wheel, the driving chain wheel drives the driven chain wheel through a chain, and the chain rotates to drive the moving mechanism to move.

5. The actively-driven retraction support device according to any one of claims 1 to 4, wherein: the device also comprises a direction rotating mechanism which is directly or indirectly arranged on the moving mechanism or the upright post, and the motor drives the moving mechanism to move up or down to drive the supporting mechanism movably connected with the direction rotating mechanism to move so as to enable the contact wire and/or the catenary in the supporting mechanism to move to a working position, a non-working position or switch between the working position and the non-working position.

6. The actively-driven retraction support device according to claim 5, characterized in that: the supporting mechanism can realize the horizontal rotation of the integral folding and unfolding supporting device through the direction rotating mechanism.

7. The actively-driven retraction support device according to claim 5, characterized in that: the direction rotating mechanism comprises a rotating part for providing horizontal rotation for the supporting mechanism and a rotating part for providing contraction rotation for the supporting mechanism.

8. The actively-driven retraction support device according to claim 7, characterized in that: the direction rotating mechanism is arranged in the following mode: the first method comprises the following steps: the rotating part for providing the supporting structure with horizontal rotation comprises a rotating shaft; the rotating part for providing the support mechanism with the contraction rotation comprises a hinge part, the rotating shaft is directly or indirectly arranged on the moving mechanism, the hinge part is arranged on the rotating shaft, and one end of the support structure is hinged with the hinge part;

And a fifth mode: the universal hinge is adopted, and one end of the supporting structure is directly or indirectly arranged on the moving mechanism through the universal hinge.

9. The actively-driven retraction support device according to claim 5, characterized in that: the direction rotating mechanism is directly or indirectly arranged on the moving mechanism and/or the upright post;

One end of the supporting mechanism is directly or indirectly movably connected with the moving mechanism through the direction rotating mechanism, and one end of the connecting piece is movably connected with the supporting mechanism.

10. The active driving type retractable supporting device for the mobile overhead line system of any one of claims 1 to 7, which is characterized in that: the supporting mechanism comprises a first connecting rod and a second connecting rod, one end of the first connecting rod and one end of the second connecting rod are both directly or indirectly connected with the direction rotating mechanism or movably connected with the moving mechanism, the other end of the first connecting rod and the other end of the second connecting rod are movably connected with a suspension assembly, and a catenary and/or a contact line are arranged on the suspension assembly.

11. The actively-driven retraction support device according to claim 8, characterized in that: still include suspension element, setting mode one: the suspension component is directly or indirectly arranged at the other end of the supporting mechanism; the suspension assembly is directly or indirectly provided with a catenary cable and/or a contact wire; or

The setting mode is two: the suspension component is characterized by further comprising an insulator, one end of the insulator is directly or indirectly connected with the suspension component, and the other end of the insulator is directly or indirectly provided with a contact wire.

12. The active driving type retractable supporting device for the mobile overhead line system of any one of claims 1 to 9, which is characterized in that: the upright post is provided with a limiting structure for assisting the moving mechanism to move in the vertical direction; the limiting structure comprises a slide way, a slide groove, a slide rail, a track or a limiting frame, and the moving mechanism moves in the slide way, the slide groove, the slide rail, the track or the limiting frame along the length direction of the upright post.

13. The utility model provides a remove contact net which characterized in that: the mobile contact network adopts more than two active driving type retracting and supporting devices as claimed in any one of claims 1 to 10, the other ends of the supporting mechanisms in the plurality of active driving type retracting and supporting devices are directly or indirectly provided with catenary cables and/or contact lines, and the catenary cables and/or the contact lines which are directly or indirectly arranged at the free ends of the supporting mechanisms are kept at the same horizontal height and basically form a straight line through respective motors on the upright posts.

14. The mobile catenary of claim 11, wherein: the motors arranged in each active driving type retraction supporting device drive the corresponding moving mechanisms to move, and the moving strokes of each moving mechanism in the corresponding upright post are equal, so that the free ends of the supporting mechanisms drive the contact lines and/or the carrier cables to move to working positions or non-working positions.

15. The mobile catenary of claim 12, wherein: in the process that a plurality of supporting mechanisms in the mobile overhead line system are switched to rotate in the working position state, the non-working position state or between the working position and the non-working position, the supporting mechanisms can rotate in the horizontal direction through the direction rotating mechanism.

16. The mobile catenary of any one of claims 10 to 13, wherein:

the first setting structure is as follows: at least one end of the movable contact net is provided with a portal frame, a movable trolley and a driving device are arranged on the portal frame, and the driving device is used for driving the movable trolley to move on a cross beam of the portal frame to drive the catenary cable and/or the contact line to move;

the second setting structure is as follows: at least one end of the movable contact net is provided with a gravity compensation device, and the catenary cable and/or the contact line directly or indirectly act on the gravity compensation device; or

17. A mobile contact net operation method is characterized in that: the mobile catenary of any one of claims 13 to 16, comprising the following steps:

18. A mobile contact net operation method is characterized in that: the mobile catenary of any one of claims 13 to 16, comprising the following steps:

19. A method of operating a mobile catenary as claimed in claim 18 or 19, further comprising: the method also comprises the step of balancing the tension unbalance of the left side and the right side of the supporting mechanism of the carrier cable and/or the contact wire pair:

20. The method of operating a mobile catenary as in claim 18 or 19, further comprising: when the other end of the supporting mechanism drives the contact wire and/or the catenary to move to the working position or the non-working position, the moving trolley on the gantry is driven to drive the catenary and/or the contact wire to move.