Operation Method of Actively-driven Retractable Support Device for Moving OCS

Abstract

The present invention relates to an active driving type retractable support device, a mobile catenary and an operation method, including a column, a support mechanism, a moving mechanism, a connecting piece, a motor and a chain. The moving mechanism can move along the length direction of the column. One end of the connecting piece is directly or indirectly connected to the column, and the other end of the connecting piece is connected to the support mechanism; one end of the support mechanism is movably connected to the moving mechanism; the motor drives the chain to rotate to drive the moving mechanism to move, so that the free end of the support mechanism drives the contact wire and / or the carrier cable to move to the working position, the non-working position or switch between the working position and the non-working position. The present invention can effectively avoid the situation of bending points in the prior art and avoid the technical defect of arcs in the prior art; on the other hand, the active driving type retractable support device is adopted on each column in the whole mobile catenary, avoiding the situation of being unable to pull and the telescopic mechanism not being able to unfold in place in the prior art.

Description

Technical Field

[0001] The present invention belongs to the technical field of mobile catenary, and particularly relates to an active driving type retractable support device, a mobile catenary adopting the device, and an operation method. Background Art

[0002] In the existing catenary, gantries are arranged at both ends, traveling devices are arranged on the gantries, and both ends of the mobile catenary component are respectively connected. When the traveling devices travel, they can drive the catenary component to move, driving the entire catenary to move.

[0003] The length of the catenary is generally 800 meters, and for the mobile catenary of the ten-thousand-ton line, its length can reach about 1700 meters. If the above method is adopted, there are huge defects. This solution drives the catenary component in the entire mobile catenary to move from the non-working position to the working position through a tensioned catenary. The catenary component is installed on the telescopic mechanism. In the natural state, the telescopic mechanism retracts, and the catenary is on one side of the railway (non-working position); when the traveling devices at both ends move towards the working position, they drive the tensioned catenary to move from the non-working position to the working position (above the railway). The force controlling the expansion of the telescopic mechanism comes from the catenary. The problems existing in this way are as follows: Please refer to Figure 1 as shown.

[0004] 1. At the places where all the catenary components in the moving section of the mobile catenary are connected to the catenary, bending points will be formed. Bending of the catenary is a problem that the mobile catenary needs to avoid as much as possible, and the above method will definitely form bending points. Taking an 800-meter mobile catenary as an example, assuming the distance between columns is 20 meters, 40 columns are required, numbered 1, 1 + N…, 20, …, 40 respectively. Traveling devices are arranged on the gantries and are respectively connected to both ends of the mobile catenary component. When the traveling devices travel, they can drive the first catenary component to move towards the working position (a first bending point will be generated here, and it is the most obvious). Only when the telescopic mechanisms in the first and fortieth columns expand and have a moving displacement, will the telescopic mechanisms in the second and thirty-ninth columns be driven to expand, and gradually drive from both ends to the middle position in turn. In the tensioned catenary, only a very small force is required to form a bending point. When used in mobile catenaries with longer distances, this bending phenomenon is more obvious.

[0005] 2. There is a situation where it cannot be pulled. The traveling device in the gantry moves to pull the first telescopic mechanism to extend. When the first telescopic mechanism is fully stretched, the catenary and / or contact wire between the traveling device and the first column telescopic mechanism is stretched to the maximum movement amount and cannot be pulled anymore, resulting in a situation where it cannot be pulled. At this time, there are still telescopic mechanisms in the entire moving section that have not been pulled in place, that is, there are several, especially the telescopic mechanisms near the middle column that have not completed moving to the working position. The telescopic mechanism in the middle position has not fully reached the working position, while the traveling devices at both ends have reached their maximum moving positions on the gantry and cannot be pulled anymore. This solution will result in a situation where it cannot be pulled or pulled in place, especially for the middle part where there is a situation where it cannot be pulled.

[0006] 3. Only a very small force is required to form a bending point in the tensioned contact wire. Therefore, in the above-mentioned method, the contact wire in the entire moving section of the catenary will form a large arc, and the width of the entire arc will exceed the power-taking width range of the pantograph, resulting in a situation where the entire moving catenary cannot be used.

[0007] 4. In this method, a gravity balance device is set at the slider to lift the slider, or a spring is set below the slider to support it, or a spring is set above the slider to lift the slider to overcome the inherent weight of the slider. This method reduces the force required to drive the telescopic mechanism to extend to a certain extent. However, the problem is that when the traveling devices at both ends reach the position, the contact wire can no longer provide a horizontal moving pulling force. Especially for the telescopic mechanism of the column in the middle position, even if an upward lifting force is given to the slider through a counterweight, when the contact wire no longer provides or cannot provide the stretching pulling force, the telescopic mechanism on the column in the middle position of the moving catenary will not be able to further expand and cannot effectively complete pushing the contact wire to the working position. Summary of the Invention

[0008] As can be seen from the above, the essential reason for its many defects is that the traveling device is used to drive the contact wire to move horizontally. The contact wire tensioned between the two traveling devices drives the telescopic mechanism network to move above the railway. The traveling device can drive the contact wire assembly to move so that the contact wire assembly can approach or move away from the column in the horizontal direction. The telescopic mechanism expands and contracts with the movement of the contact wire assembly and supports the contact wire assembly.

[0009] In this solution, a small force at any position on the tensioned contact wire can form a bending point. The stretching force of any catenary component is obtained from the telescopic mechanism that stretches from its side. When the telescopic mechanisms of the first and last poles can no longer stretch, any catenary component in the middle position will no longer be able to provide the stretching tension from the side, resulting in a bending point, an arc will be formed, and there will be a situation where it cannot be pulled and the telescopic mechanism cannot be unfolded.

[0010] In view of this, the first aspect of the present invention provides an active drive type retractable support device for a mobile catenary, including poles, a support mechanism, a moving mechanism, a connecting piece, a motor, and a chain, wherein

[0011] The moving mechanism can move along the length direction of the pole. One end of the connecting piece is directly or indirectly connected to the pole, and the other end of the connecting piece is directly or indirectly connected to the support mechanism; one end of the support mechanism is directly or indirectly movably connected to the moving mechanism; the motor drives the chain to rotate to drive the moving mechanism to move, so that the free end of the support mechanism drives the contact wire and / or the messenger wire to move to the working position, the non - working position, or switch between the working position and the non - working position.

[0012] 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 support mechanism drives the contact wire and / or the messenger wire to move towards the working position or towards the non - working position.

[0013] Further, it further includes a driving sprocket, which is arranged on the motor. The motor drives the driving sprocket to rotate and drives the moving mechanism to move along the length direction of the pole through the chain.

[0014] Further, it further includes a driven sprocket. The driving sprocket drives the driven sprocket through the chain, and the rotation of the chain drives the moving mechanism to move.

[0015] Further, it further includes a direction rotation mechanism, which is directly or indirectly arranged on the moving mechanism or the pole. The motor drives the moving mechanism to move up or down, driving the support mechanism movably connected to the direction rotation mechanism to move, so that the contact wire and / or the messenger wire in the support mechanism move to the working position, the non - working position, or switch between the working position and the non - working position.

[0016] Further, the support mechanism can realize the horizontal rotation of the overall retractable support device through the direction rotation mechanism.

[0017] Further, the direction rotation mechanism includes a rotating part that provides horizontal rotation for the support mechanism and a rotating part that provides retractable rotation for the support mechanism.

[0018] Furthermore, the setting methods of the direction rotation mechanism are as follows:

[0019] First: The rotating member that provides horizontal rotation for the support mechanism includes a rotating shaft; the rotating member that provides retractable rotation for the support mechanism includes a hinge member. The rotating shaft is directly or indirectly arranged on the moving mechanism, the hinge member is arranged on the rotating shaft, and one end of the support mechanism is hinged to the hinge member.

[0020] Second: The rotating member that provides horizontal rotation for the support mechanism includes a hinge member; the rotating member that provides retractable rotation for the support mechanism includes a rotating shaft. The hinge member is directly or indirectly arranged on the moving mechanism, the rotating shaft is directly or indirectly arranged on the hinge member, and one end of the support mechanism is directly or indirectly movably connected to the rotating shaft.

[0021] Third: The rotating member that provides horizontal rotation for the support mechanism includes a first rotating member; the rotating member that provides retractable rotation for the support mechanism includes a second rotating member. The first rotating member is directly or indirectly connected to the moving mechanism, and one end of the support mechanism is directly or indirectly connected to the second rotating member.

[0022] Fourth: The rotating member that provides horizontal rotation for the support mechanism includes a first ring, and the rotating member that provides retractable rotation for the support mechanism includes a second ring. The first ring is directly or indirectly connected to the moving mechanism, one end of the support mechanism is directly or indirectly connected to the second ring, and the first ring is buckled with the second ring; or

[0023] Fifth: A universal hinge member is adopted, and one end of the support mechanism is directly or indirectly arranged on the moving mechanism through the universal hinge member. Further, the direction rotation mechanism is directly or indirectly arranged on the moving mechanism and / or the column;

[0024] One end of the support mechanism is directly or indirectly movably connected to the moving mechanism through the direction rotation mechanism, and one end of the connecting member is movably connected to the column through the direction rotation mechanism; or

[0025] One end of the support mechanism is directly or indirectly movably connected to the moving mechanism through the direction rotation mechanism, and the other end of the connecting member is movably connected to the support mechanism.

[0026] Furthermore, the support mechanism includes 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 to the direction rotation mechanism or movably connected to 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 load-bearing cable and / or a contact wire are arranged on the suspension assembly.

[0027] Preferably, the hanging component is arranged in the first way: the hanging component is arranged at the other end of the supporting mechanism; a catenary and / or a contact wire is arranged on the hanging component; or

[0028] The second way of arrangement: an insulator is further included. One end of the insulator is connected to the hanging component, and a contact wire is directly or indirectly arranged at the other end of the insulator.

[0029] Furthermore, a limiting structure for assisting the moving mechanism to move in the vertical direction is arranged on the column; the limiting structure includes a slideway, a chute, a slide rail, a track or a limiting frame, and the moving mechanism moves along the length direction of the column in the slideway, the chute, the slide rail, the track or the limiting frame.

[0030] In the second aspect of the present invention, a mobile catenary is provided. In this mobile catenary, more than two of the above-mentioned active drive type retractable support devices are adopted. The other ends of the support mechanisms in several active drive type retractable support devices are directly or indirectly provided with a catenary and / or a contact wire. The catenary and / or the contact wire directly or indirectly installed at the free end of the support mechanism are kept at the same horizontal height and basically form a straight line through the respective motors on the column.

[0031] Furthermore, the motors respectively arranged in each active drive type retractable support device drive the corresponding moving mechanisms to move, and the moving distances of each moving mechanism moving on its corresponding column are equal, so that the free end of the support mechanism drives the contact wire and / or the catenary to move to the working position or the non-working position.

[0032] Furthermore, during the process that several support mechanisms in the mobile catenary switch the support mechanisms to rotate in the working position state, the non-working position state or between the working position and the non-working position, the support mechanism can rotate in the horizontal direction through the direction rotation mechanism.

[0033] The first type: one or more gantries are arranged at at least one end of the mobile catenary. A mobile trolley and a driving device are arranged on the gantry, and the driving device is used to drive the mobile trolley to move on the cross beam of the gantry to drive the catenary and / or the contact wire to move;

[0034] The second setting structure is: a gravity compensation device is arranged at at least one end of the mobile catenary, and the catenary and / or the contact wire directly or indirectly act on the gravity compensation device;

[0035] The third setting structure is: a spring mechanism is arranged at at least one end of the mobile catenary, and the catenary and / or the contact wire directly or indirectly act on the spring mechanism;

[0036] The fourth setting structure is: a dragging mechanism is arranged at at least one end of the mobile catenary, and the pulling force provided by the dragging mechanism directly or indirectly acts on the catenary and / or the contact wire; or

[0037] The fifth setting mechanism is as follows: both ends of the mobile catenary adopt any pairwise combination of the first to the fourth types.

[0038] The third aspect of the present invention provides a method for operating a mobile catenary. Using the above-mentioned mobile catenary, the operation steps are as follows:

[0039] The motors respectively arranged in each active drive type retractable support device drive the corresponding moving mechanism to move, so that the moving mechanism moves upward along the length direction of the column.

[0040] The moving mechanism drives one end of the support mechanism to move upward along the length direction of the column; the moving strokes of each of the moving mechanisms moving on their respective corresponding columns are equal.

[0041] The free end of each support mechanism, that is, the other end of each support mechanism, moves in a direction away from the column, driving the contact wire and / or the carrier cable to move towards the working position.

[0042] When in the working position, the contact wire and / or the carrier cable directly or indirectly arranged on the free end of each support mechanism are substantially in a straight line, and at the same time, the contact wire and / or the carrier cable are kept at the same horizontal height.

[0043] The fourth aspect of the present invention provides a method for operating a mobile catenary, characterized in that: using the above-mentioned mobile catenary, the operation steps are as follows:

[0044] The motors respectively arranged in each active drive type retractable support device drive the corresponding moving mechanism to move, so that the moving mechanism moves downward along the length direction of the column.

[0045] The moving mechanism drives one end of the support mechanism to move downward along the length direction of the column; the moving strokes of each of the moving mechanisms moving on their respective corresponding columns are equal.

[0046] The free end of each support mechanism, that is, the other end of the support mechanism, moves in a direction close to the column, driving the contact wire and / or the carrier cable to move towards the non-working position.

[0047] Preferably, it further includes steps for balancing the unbalanced tension on the left and right sides of the support mechanism by the carrier cable and / or the contact wire:

[0048] During the process that the support mechanism is in the working position state, or the non-working position state, or rotates during the switching between the working position and the non-working position,

[0049] When the tension on the left and right sides of the support mechanism caused by the carrier cable and / or the contact wire is unbalanced, the support mechanism can rotate in the horizontal direction through the direction rotation mechanism, so that the tension on the support mechanism caused by the carrier cable and / or the contact wire on the left and right sides becomes balanced.

[0050] Preferably, when the other end of the supporting mechanism drives the contact wire and / or the carrier cable to move towards the working position or the non-working position, the moving trolley on the gantry is driven to drive the carrier cable and / or the contact wire to move.

[0051] Compared with the existing related technologies, the present invention adopts the above technical solutions and has the following beneficial effects:

[0052] 1. Compared with the existing technical solutions, in the present invention, a motor is used to provide a main body type of drive, and the driving mechanism can move along the length direction of the column, so that the other end of the supporting mechanism moves away from the column, driving the contact wire and / or the carrier cable to move towards the working position; or the other end of the supporting mechanism moves towards the column, driving the contact wire and / or the carrier cable to move towards the non-working position. By adopting this active driving method, the situation of bending points in the existing technology can be effectively avoided. When the active driving type retractable support device provided by the present invention is adopted in the overall mobile catenary, whether it is the process of the carrier cable and / or the contact wire moving from the non-working position to the working position or from the working position to the non-working position, the whole carrier cable and / or the contact wire can basically be kept in a straight line, avoiding the technical defect of arcs in the existing technology; on the other hand, the active driving type retractable support device is adopted on each column in the whole mobile catenary, avoiding the situation that it cannot be pulled and the telescopic mechanism cannot be unfolded in place in the existing technology.

[0053] 2. The solution provided by the present invention has reliable mechanisms and low failure rates, and can effectively ensure the normal operation of the mobile catenary. In particular, by adopting the active driving type retractable support device provided by this solution, the length of the mobile catenary can be effectively increased and applied to the freight lines of 10,000-ton lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0055] Figure 1 is a schematic diagram of the existing technical solution;

[0056] Figure 2 is Embodiment 1 of the active driving type retractable support device of the present invention;

[0057] Figure 3 is Embodiment 2 of the active driving type retractable support device of the present invention;

[0058] Figure 4 This is Embodiment 1 of the active drive type retractable support device of the present invention with a direction rotation mechanism;

[0059] Figure 4A This is Embodiment 2 of the active drive type retractable support device of the present invention with a direction rotation mechanism;

[0060] Figure 4B is Figure 4A a partial schematic diagram;

[0061] Figure 5 This is a schematic diagram of the active drive type retractable support device of the present invention with a suspension assembly;

[0062] Figure 6 This is a schematic diagram of the structure of the mobile catenary above the railway of the present invention;

[0063] Figure 7 This is a schematic diagram of the structure of the mobile catenary on the side of the railway of the present invention;

[0064] Figure 8 This is a schematic diagram of the mobile catenary in the working position of the present invention;

[0065] Figure 9 This is the operation method flow of the mobile catenary of the present invention Figure 1 ;

[0066] Figure 10 This is the operation method flow of the mobile catenary of the present invention Figure 2 .

[0067] In the figure: 1, column; 2, support mechanism; 21, first connecting rod; 22, second connecting rod; 3, moving mechanism; 4, connecting piece; 5, motor; 6, chain; 7, contact wire; 8, catenary wire; 9, driving sprocket; 10, driven sprocket; 11, direction rotation mechanism; 12, rotating shaft; 13, hinge piece; 14, first ring; 15, second ring; 16, railway; 17, track; 18, insulator; 19, suspension assembly; 20, wire clamp;

[0068] 21, gravity compensation device; 22, moving trolley; 23, driving device; 24, suspension terminal anchor device; 25, fixed contact suspension anchor device; 26, gantry; 27, spring mechanism. Detailed Description of the Invention

[0069] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0070] Please refer to Figure 2 and Figure 3 As shown, this embodiment provides an active drive type retractable support device for a mobile catenary, including a column 1, a support mechanism 2, a moving mechanism 3, a connecting piece 4, a motor 5 and a chain 6. The moving mechanism 3 can move along the length direction of the column 1. One end of the connecting piece 4 is directly or indirectly connected to the column 1, and the other end of the connecting piece 4 is directly or indirectly connected to the support mechanism 2. One end of the support mechanism 2 is directly or indirectly movably connected to 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 support mechanism 2 drives the contact wire 7 and / or the carrier cable 8 to move to the working position, the non-working position or switch between the working position and the non-working position.

[0071] 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 support mechanism drives the contact wire 7 and / or the carrier cable 8 to move towards the working position or the non-working position. As Figure 2 shown, the motor 5 drives the chain 6 to rotate to drive the moving mechanism 3 to move downwards (as Figure 2 shown by arrow A), and the free end of the support mechanism 2, that is, the other end of the support mechanism 2, moves along the direction close to the column 1 (as Figure 2 shown by arrow B), driving the contact wire 7 and / or the carrier cable 8 to move towards the non-working position. The non-working position is on one side of the railway 16. After the freight train enters the station and stops, the support mechanism 2 moves away to make room above the railway 16 for convenient loading and unloading operations.

[0072] Figure 2 What is shown in

[0073] is the case with the carrier cable 8 and the contact wire 7. In the mobile catenary, only the contact wire 7 can be provided at the free end, and there can also be a case where only the carrier cable 8 is provided on the support mechanism 2. Additionally, it should be supplemented that insulators 18 are provided on the active drive type retractable support device in this embodiment, and insulators 18 can be provided on both the connecting piece 4 and / or the support mechanism 2 to play the role of electrical isolation.

[0073] As Figure 3 shown, the motor 5 drives the chain 6 to rotate to drive the moving mechanism 3 to move upwards (as Figure 3 shown by arrow A), and the free end of the support mechanism 2, that is, the other end of the support mechanism 2, moves along the direction away from the column 1 (as Figure 3 shown by arrow B), driving the contact wire 7 and / or the carrier cable 8 to move towards the working position; the working position is above the railway 16, facilitating the entry or exit of freight trains.

[0074] As a preferred embodiment, the active driving type retractable support device provided in this embodiment includes an active sprocket 9, the active sprocket 9 is arranged on the motor 5, and the motor 5 drives the active sprocket to rotate to drive the moving mechanism 3 to move along the length direction of the column 1 through the chain 6. Preferably, it further includes a driven sprocket 10, the active sprocket 9 drives the driven sprocket 10 through the chain 6, and the rotation of the chain 6 drives the moving mechanism 3 to move along the length direction of the column 1.

[0075] As a preferred embodiment, the active driving type retractable support device provided in this embodiment further includes a direction rotation mechanism 11, the direction rotation mechanism is directly or indirectly arranged on the moving mechanism or the column, the motor drives the moving mechanism to move up or down, driving the support mechanism movably connected to the direction rotation mechanism to move, so that the contact wire and / or the carrier cable in the support mechanism move to the working position, the non-working position or switch between the working position and the non-working position. The support mechanism can realize the horizontal rotation of the overall retractable support device through the direction rotation mechanism.

[0076] In this embodiment, the direction rotation mechanism includes a rotating member for providing horizontal rotation for the support mechanism and a rotating member for providing contraction rotation for the support mechanism.

[0077] As a preferred embodiment, the setting modes of the direction rotation mechanism 11 in this embodiment are as follows:

[0078] As Figure 4 shown, the first one: the rotating member for providing horizontal rotation for the support mechanism includes a rotating shaft 12; the rotating member for providing contraction rotation for the support mechanism includes a hinge member 13; the first rotating member is directly or indirectly connected to the moving mechanism, and one end of the support mechanism is directly or indirectly connected to the second rotating member. In this embodiment, the rotating shaft 12 is arranged on the moving mechanism 3, the hinge member 13 is arranged on the rotating shaft 12, and one end of the support mechanism 2 is hinged to the hinge member 13;

[0079] Similarly, preferably, not shown in the figure of this embodiment, the rotating member for providing horizontal rotation for the support mechanism includes a hinge member; the rotating member for providing contraction rotation for the support mechanism includes a rotating shaft, the hinge member is directly or indirectly arranged on the moving mechanism, the rotating shaft is arranged on the hinge member, and one end of the support mechanism is movably connected to the rotating shaft;

[0080] In addition, it is also possible that, regarding the implementation mode of the direction rotation mechanism, for example, a rotating shaft 12 is arranged on the moving mechanism 3, and a collar is arranged at one end of the support mechanism 2, so that horizontal rotation can be realized, and in the retracting and extending rotation direction, the collar also has a swinging space.

[0081] Preferably, the rotating member that provides horizontal rotation for the support mechanism includes a first rotating member; the rotating member that provides contraction rotation for the support mechanism includes a second rotating member. The first rotating member is directly or indirectly connected to the moving mechanism, and one end of the support mechanism is directly or indirectly connected to the second rotating member.

[0082] In this embodiment, the first rotating member is arranged on the moving mechanism, and one end of the support mechanism is arranged on the second rotating member; the first rotating member is movably linked to the second rotating member.

[0083] Such as Figure 4A and Figure 4B As shown, the second type: includes a first ring 14 and a second ring 15. The first ring 14 is arranged on the moving mechanism 3, and the first ring is directly or indirectly connected to the moving mechanism. One end of the support mechanism is directly or indirectly connected to the second ring. In this embodiment, one end of the support mechanism 2 is arranged on the second ring 15, and the first ring 14 is buckled with the second ring 15; in this embodiment, a collar is arranged on the moving mechanism 3, and another collar is arranged at one end of the support mechanism 2. The two collars are buckled, and horizontal rotation and telescopic swing can be realized.

[0084] The third type: uses a universal hinge. One end of the support mechanism 2 is directly or indirectly arranged on the moving mechanism 3 through the universal hinge.

[0085] In this embodiment, the direction rotation mechanism is directly or indirectly arranged on the moving mechanism 3 and / or the column 1; as Figure 4 shown, in this embodiment, one end of the support mechanism 2 is directly or indirectly movably connected to the moving mechanism 3 through the direction rotation mechanism, and one end of the connecting member 4 is movably connected to the column 1 through the direction rotation mechanism;

[0086] Such as Figure 2 shown, in this embodiment, one end of the support mechanism 2 is directly or indirectly movably connected to the moving mechanism 3 through the direction rotation mechanism, and one end of the connecting member 4 is movably connected to the support mechanism 2. Of course. As a preferred implementation manner, the connecting member 4 can be flexible, with one end fixed on the column 1 and the other end fixed on the support mechanism 2.

[0087] In this embodiment, the support 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 rotation 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 with a suspension assembly 19, and a load-bearing cable 8 and / or a contact wire 7 are arranged on the suspension assembly 19.

[0088] Preferably, such as Figure 4AAs shown, the first setting method of the suspension assembly 19: The suspension assembly 19 is arranged at the other end of the support mechanism 2; The suspension assembly 19 is provided with a catenary 8 and / or a contact wire 7; Or

[0089] The second setting method: As Figure 5 shown, it further includes an insulator 18. One end of the insulator 18 is connected to the 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 clamped by a wire clamp 20.

[0090] As a preferred embodiment, a limiting structure for assisting the movement mechanism 3 to move in the vertical direction is provided on the column 1; The limiting structure includes a slideway, a chute, a slide rail, a track 17 or a limiting frame, and the movement mechanism 3 moves along the length direction of the column 1 in the slideway, the chute, the slide rail, the track 17 or the limiting frame. It can also be arranged by directly hanging and attaching to the surface of the column 1, and rollers are provided on the movement mechanism 3 to reduce the friction between the movement mechanism 3 and the column 1.

[0091] In this embodiment, the motor 5 drives the movement mechanism 3 to move up and down along the track 17 in the length direction of the column 1, so that the free end of the support 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.

[0092] It should be noted that for the active drive type retractable support device of the mobile catenary provided in this embodiment, during the process that the support mechanism 2 is in the working position state (above the railway 16), or the non-working position state (on the side of the railway 16), or when the support mechanism 2 rotates between the working position and the non-working position, the support mechanism 2 can rotate in the horizontal direction through the direction rotation mechanism 11. The telescopic mechanism is used to move the carrier cable 8 and / or the contact wire 7 to the working position or the non-working position. The mobile catenary requires the carrier cable 8 and the contact wire 7 to be in a tensioned state. When the tensile forces on both sides of the support mechanism 2 are unbalanced, on the one hand, the long-term action of the unbalanced tensile force is likely to cause deformation of the support mechanism 2 itself. On the other hand, construction errors are likely to exist in the angles between the columns 1 and between the columns 1 and the installation angle of the support mechanism 2, especially affected by the thermal expansion and contraction of the carrier cable 8 and / or the contact wire 7. For example, when the entire carrier cable 8 is in the working state, the existing telescopic cantilever cannot rotate in the horizontal direction, and the carrier cable 8 and / or the contact wire 7 are fixed on the cantilever (support mechanism 2). When the carrier cable 8 and / or the contact wire 7 between the columns 1 expand due to heat, the wire body extends, resulting in the inability to tension the carrier cable 8 between the columns 1. And because the carrier cable 8 and the contact wire 7 are fixed on the cantilever, the tensile forces provided by the tensioning devices on the two end gantries 26 cannot be gradually transmitted. In the present invention, by using the direction rotation mechanism 11, the support mechanism 2 can rotate to telescopic the support mechanism 2, and the support mechanism 2 can realize the overall rotation of the support mechanism 2 in the horizontal direction through the direction rotation mechanism 11.

[0093] Therefore, during the process that the support mechanism 2 in this embodiment is in the working position state, or the non-working position state, or when the support mechanism 2 rotates between the working position and the non-working position, the support mechanism 2 can rotate in the horizontal direction through the direction rotation mechanism 11. It effectively solves the construction errors and the influence brought by thermal expansion and contraction. At the same time, it also effectively solves the problem of unbalanced tensile forces on both sides of the support mechanism, and can automatically adjust according to the pulling forces provided at both 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 tensioned state. The existing technical methods cannot solve this technical problem, nor can they achieve the beneficial effects brought by the technical solution of the present invention.

[0094] As Figure 6 and Figure 7 shown, in the second aspect of this embodiment, a mobile catenary is provided. In this mobile catenary, two or more of the above-mentioned active drive type retractable support devices are adopted. The other ends of the support mechanisms 2 in several active drive type retractable support devices are directly or indirectly provided with the carrier cable 8 and / or the contact wire 7. Through the respective motors 5 on the columns 1, the carrier cable 8 and / or the contact wire 7 directly or indirectly installed at the free ends of the support mechanisms 2 are kept at the same horizontal height and basically form a straight line.

[0095] Preferably, the motor 5 provided in each active drive type retractable support device drives the corresponding moving mechanism 3 to move, and the moving stroke of each of the moving mechanisms 3 moving on the corresponding column 1 is equivalent, so that the free end of the support mechanism 2 drives the contact wire 7 and / or the messenger wire 8 to move to the working position or the non-working position.

[0096] Preferably, during the process that a plurality of the support mechanisms 2 in the moving catenary rotate when switching between the working position state, the non-working position state, or between both the working position and the non-working position, the support mechanism 2 can rotate in the horizontal direction through the direction rotation mechanism 11.

[0097] A gantry is provided at at least one end of the moving catenary, as Figure 8 shown, the first setting structure is: in this embodiment, gantries 26 are further provided at both ends of the moving catenary, a moving trolley 22 and a driving device 23 are provided on the gantry 26, and the driving device 23 is used to drive the moving trolley 22 to move on the cross beam of the gantry 26 to drive the messenger wire 8 and / or the contact wire 7 to move;

[0098] As Figure 6 shown, a gravity compensation device is provided at at least one end of the moving catenary, and the second setting structure is: gravity compensation devices 21 are provided at both ends of the moving catenary in this embodiment, and both ends of the messenger wire 8 and / or the contact wire 7 act directly or indirectly on the gravity compensation device 21; it should be added that the gravity compensation device provided in this embodiment can adopt a counterweight. Or,

[0099] As Figure 7 shown, a spring mechanism is provided at at least one end of the moving catenary, and the third setting structure is: in this embodiment, spring mechanisms 27 are provided at both ends of the moving catenary, and both ends of the messenger wire 8 and / or the contact wire 7 act directly or indirectly on the spring mechanism 27.

[0100] Preferably, the fourth setting structure is: not shown in the figure, a dragging mechanism is provided at at least one end of the moving catenary, and the pulling force provided by the dragging mechanism acts directly or indirectly on the messenger wire and / or the contact wire; or

[0101] Preferably, the fifth setting mechanism is: both ends of the moving catenary adopt any two-by-two combination of the first to the fourth.

[0102] As Figure 8As shown in the figure, in this embodiment, a hanging terminal anchoring device 24 is further provided. The driving device 23 is used to drive the moving trolley 22 to move on the cross beam of the gantry 26. The hanging terminal anchoring device 24 is arranged on the moving trolley 22. Both ends of the carrier cable 8 and / or the contact wire 7 are respectively anchored on the hanging terminal anchoring devices 24 at both ends of the gantry 26. A fixed contact suspension anchoring device 25 is further provided on the gantry 26, and the fixed contact wire 7 is anchored on the fixed contact suspension anchoring device 25.

[0103] Principle description: As Figure 8 shown, it is a schematic structural diagram of the carrier cable 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 both sides of the gantry 26 drive the moving trolley 22 to move, and the hanging terminal anchoring device 24 suspended below the moving trolley 22 moves accordingly, so as to drive the carrier cable 8 and / or the contact wire 7 to move to the non-working position from both ends; at the same time, the moving mechanism 3 in each active drive type retractable support device moves up and down on the column 1, so that the other ends of all the support mechanisms 2 move along the direction close to their corresponding columns 1, driving the entire contact wire 7 and / or the carrier cable 8 to move to the non-working position;

[0104] When moving from the non-working position to the working position, the moving mechanism 3 in each active drive type retractable support device moves up on the column 1, so that the other ends of all the support mechanisms 2 move along the direction away from their corresponding columns 1, driving the entire contact wire 7 and / or the carrier cable 8 to expand and move to the working position; at the same time, the driving device 23 on the gantry 26 actuates to drive the moving trolley 22 to move. The entire contact wire 7 and / or the carrier cable 8 are moved to the working position. In this process, since the active drive type retractable support device is adopted in this embodiment, the situation of bending points existing in the prior art can be effectively avoided. The active drive type retractable support device provided by the present invention is adopted in the overall moving catenary. Whether it is the process of the carrier cable 8 and / or the contact wire 7 moving from the non-working position to the working position or the process of moving from the working position to the non-working position, the entire carrier cable 8 and / or the contact wire 7 can basically be kept in a straight line, avoiding the technical defect of the appearance of arcs in the prior art; on the other hand, the active drive type retractable support device is adopted on each column 1 in the entire moving catenary, avoiding the situation of being unable to pull and the telescopic mechanism not being able to expand and reach the position in the prior art.

[0105] In this embodiment, the motors 5 respectively arranged in each active drive type retractable support device drive the corresponding moving mechanisms 3 to move, so that the free ends of the support mechanisms 2 drive the contact wire 7 and / or the carrier cable 8 to move to the working position or the non-working position.

[0106] It should be emphasized here that the moving amounts of the respective motors 5 driving the corresponding moving mechanisms 3 to move are equivalent. In the driving mode set in the present invention, during a long-term working process, the moving amounts of the respective moving mechanisms 3 on the columns 1 are equivalent. There will be no problem that the moving amounts of the moving mechanisms 3 are inconsistent among several columns 1 during a long-term working process.

[0107] During the process of the support mechanisms 2 in the moving catenary rotating (during the retracting and extending process) in the working position state, or non-working position state, or when switching between the working position and the non-working position, the support mechanisms 2 can rotate in the horizontal direction through the direction rotating mechanism 11. Of course, in this solution, at the connection between the connecting member 4 and the column 1, the direction rotating mechanism 11 is also used, which can ensure that the connecting member 4 can rotate in both the telescopic direction and the horizontal direction.

[0108] As described many times in the above embodiments, in the current related technologies, the tensioned carrier cable 8 and / or contact wire 7 are adopted, and the telescopic structure is driven to expand or contract by the translation of the contact wire 7 and / or carrier cable 8. The problem is that the stretching force of any catenary component is obtained from the telescopic mechanism that expands from its side. When the telescopic mechanisms of the first and last columns 1 can no longer expand, any catenary component in the middle position will no longer be able to provide the stretching force from the side, there will be a bending point, an arc will be formed, and there will be a situation where the telescopic mechanism cannot be pulled and cannot be expanded.

[0109] In the above solution, the free end of the telescopic structure is pulled by the translation of the tensioned carrier cable 8 and / or contact wire 7 in the entire moving catenary to cause the telescopic structure to expand or contract. The problem points have been described above.

[0110] Another way is to use a tensioned steel wire rope on one side of the columns 1 in the entire moving catenary to pull the sliding ends of the moving mechanisms 3 in each column 1. On a tensioned steel wire rope that runs through the entire length of the moving catenary, a branch pull rope is connected at the corresponding position of each column 1, and each branch is respectively connected to the sliding end. The left and right movement of the tensioned steel wire rope drives the sliding ends in each branch to slide up or down. This method also has deficiencies:

[0111] 1. Since only a tensioned steel wire rope is used to control the movement of several sliding blocks, during the force-induced movement, due to the weight of their own sliding ends at each branch point, a tensile force point will be formed on the steel wire rope at each branch point. These tensile force points cannot be kept in a straight line, and the tensioned steel wire rope will also form arcs and bending points. The most serious consequence is that the sliding amounts of the corresponding sliding ends on each column 1 are different. Under the action of the telescopic mechanism, the formed horizontal movement amounts of the carrier cable 8 and / or the contact wire 7 are different, resulting in unequal horizontal movement strokes of the carrier cable 8 and / or the contact wire, causing the carrier cable 8 and / or the contact wire 7 to form arcs, and seriously causing the pantograph to be unable to effectively draw power. Another problem is that the inconsistent sliding end strokes will also lead to inconsistent horizontal heights of the free ends of the telescopic mechanism, resulting in the carrier cable 8 and / or the contact wire 7 not being able to maintain the same horizontal height, and the problem that the pantograph cannot contact the contact wire 7 when drawing power.

[0112] 2. During the use of the steel wire rope, the long-term tension at both ends is likely to cause the length of the steel wire rope to increase due to deformation. The steel wire rope closer to the pulling motor 5 bears a greater tensile force because the weights of all branches are aggregated here, and its deformation increment is more. This will affect the pulling and sliding amounts of the sliding ends in each branch, resulting in the problem of unequal sliding amounts. Under the action of the telescopic mechanism, the arcs or bending points reflected on the carrier cable 8 and / or the contact wire 7 will be more obvious.

[0113] 3. Regarding the problem of thermal expansion and contraction of the steel wire rope itself, the mobile catenary needs to be able to operate within a temperature difference range from more than 20 degrees below zero to more than 40 degrees above zero. According to the length of the ordinary catenary of 800 meters, the problem of thermal expansion and contraction of the steel wire rope will also cause the movement amounts of the mobile ends on the column 1 to be unequal. In a longer catenary, there will be a situation where the mobile ends on the column 1 closer to the pulling motor 5 have moved in place, while the mobile ends on the farther column 1 have not moved in place.

[0114] In the actual working conditions, the above three problems exist simultaneously. Through the amplification of the telescopic mechanism, there will also be bending points and arcs on the contact wire 7 and / or the carrier cable 8, resulting in the situation that the telescopic mechanism cannot be pulled, cannot be unfolded, or cannot be unfolded in place.

[0115] Therefore, the drive mechanism provided by the present invention is configured in each column 1, adopting a motor 5, a push rod, a lead screw, a sprocket, etc., effectively ensuring that the moving amounts of the moving mechanisms 3 are equivalent. Of course, in this patent, there is also a case where a steel wire rope is used to pull the gravity compensation device 21 with the motor 5. Under the same external parameters, such as temperature, humidity, the weight of the gravity compensation device 21, and the length of the steel wire rope remain consistent. The thermal expansion and contraction amounts of the steel wire ropes on each column 1 are the same, so the moving stroke amounts of the moving mechanisms 3 on the columns 1 are equivalent. In this way, it can effectively ensure that the catenary 8 and / or the contact wire 7 at the free end of the support mechanism 2 are kept at the same horizontal height and basically form a straight line, effectively overcoming the arc problem, the bending point problem, and the problem of being unable to pull in the related art. The technical solution provided by the present invention can effectively ensure that the telescopic mechanism is fully extended or retracted.

[0116] On the other hand, this embodiment also provides a method for operating a mobile catenary. Using the above-mentioned mobile catenary, the operation steps are as follows: As Figure 9 shown,

[0117] The motor 5 provided in each active drive type retractable support device drives the corresponding moving mechanism 3 to move, so that the moving mechanism 3 moves upward along the length direction of the column 1;

[0118] The moving mechanism 3 drives one end of the support mechanism 2 to move upward along the length direction of the column 1; the moving stroke amounts of each of the moving mechanisms 3 moving on their respective corresponding columns 1 are equivalent;

[0119] The free end of each support mechanism 2, that is, the other end of each support mechanism 2, moves in a direction away from the column 1, driving the contact wire 7 and / or the catenary 8 to move towards the working position;

[0120] The contact wire 7 and / or the catenary 8 directly or indirectly provided on the free end of each support mechanism 2 basically form a straight line when in the working position, and at the same time, the contact wire 7 and / or the catenary 8 are kept at the same horizontal height.

[0121] On the other hand, this embodiment provides a method for operating a mobile catenary. Using the above-mentioned mobile catenary, the operation steps are as follows: As Figure 10 shown.

[0122] The motor 5 provided in each active drive type retractable support device drives the corresponding moving mechanism 3 to move, so that the moving mechanism 3 moves downward along the length direction of the column 1;

[0123] The moving mechanism 3 drives one end of the support mechanism 2 to move downward along the length direction of the column 1; the moving stroke amounts of each of the moving mechanisms 3 moving on their respective corresponding columns 1 are equivalent;

[0124] At the free end of each supporting mechanism 2, i.e., the other end of the supporting mechanism 2 moves in the direction close to the column 1, driving the contact wire 7 and / or the carrier cable 8 to move towards the non-operating position.

[0125] The contact wire 7 and / or the carrier cable 8 directly or indirectly arranged on the free end of each supporting mechanism 2 are substantially in a straight line in the non-operating position, and at the same time, the contact wire 7 and / or the carrier cable 8 are kept at the same horizontal height.

[0126] In this embodiment, when the other end of the supporting mechanism 2 drives the contact wire 7 and / or the carrier cable 8 to move towards the operating position or the non-operating position, the moving trolley 22 on the gantry 26 drives the carrier cable 8 and / or the contact wire 7 to follow.

[0127] The contact wire and / or the carrier cable directly or indirectly arranged on the free end of each supporting mechanism are substantially in a straight line in the non-operating position, and at the same time, the contact wire and / or the carrier cable are kept at the same horizontal height

[0128] In this operation method, while the driving mechanism drives the moving mechanism 3 to move, the moving trolley 22 on the gantry 26 is driven to drive the hanging terminal down-anchor device 24 to move towards the operating position until it is electrically connected to the fixed contact suspension down-anchor device 25. At this time, the moving catenary is in the operating position state, and the freight train can drive in or out.

[0129] While the driving mechanism drives the moving mechanism 3 to move, the moving trolley 22 on the gantry 26 is driven to disconnect the hanging terminal down-anchor device 24 from the fixed contact suspension down-anchor device 25 and move towards the non-operating position. At this time, the moving catenary is in the non-operating position state, and the freight train can perform cargo loading and unloading operations, maintenance operations, etc.

[0130] This embodiment further includes steps for balancing the unbalanced tension of the carrier cable 8 and / or the contact wire 7 on the left and right sides of the supporting mechanism 2:

[0131] During the process that the supporting mechanism 2 rotates in the operating position state, or the non-operating position state, or when switching between the operating position and the non-operating position,

[0132] When the tension of the carrier cable 8 and / or the contact wire 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 wire 7 acting on the supporting mechanism 2 on the left and right sides becomes balanced.

[0133] During the process that the support mechanism 2 on each column 1 in this mobile catenary rotates in the working position state, or the non-working position state, or between the working position and the non-working position, each support mechanism 2 can rotate in the horizontal direction through the corresponding direction rotation mechanism 11. This effectively solves the construction error and the influence brought by thermal expansion and contraction. At the same time, it also effectively solves the problem of unbalanced tension on both sides of the support mechanism, effectively tensions the contact wire 7 and / or the messenger wire 8. The technical solution provided in this embodiment can also be automatically adjusted according to the pulling forces provided at both ends of the messenger wire 8 and / or the contact wire 7, so that the messenger wire 8 and the contact wire 7 are always kept in a tensioned state. However, the existing technical methods cannot solve this technical problem nor achieve the beneficial effects brought by the technical solution of the present invention.

[0134] Preferably, when the other end of the support mechanism 2 drives the contact wire 7 and / or the messenger wire 8 to move towards the working position or the non-working position, the moving trolley 22 on the gantry 26 is driven to drive the messenger wire 8 and / or the contact wire 7 to move.

[0135] Adopting this active driving method in this operation method can effectively avoid the situation of bending points existing in the prior art and avoid the technical defect of arcs appearing in the prior art. On the other hand, an active driving type retractable support device is adopted on each column 1 in the entire mobile catenary, avoiding the situation in the prior art where it cannot be pulled and the telescopic mechanism cannot be fully extended.

[0136] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. Method for operating a pantograph by an actively driven retractable support device, characterized in that: In a mobile catenary, more than two active drive type retractable support devices are adopted. At the other ends of the support mechanisms in several active drive type retractable support devices, a carrier cable and / or a contact wire are directly or indirectly arranged. By means of the respective motors on the columns, the carrier cable and / or the contact wire directly or indirectly installed at the free ends of the support mechanisms are kept at the same horizontal height and basically form a straight line. The active drive type retractable support device includes a column, a support mechanism, a moving mechanism, a connecting piece, a motor and a chain, and also includes a contact wire and / or a carrier cable, wherein the moving mechanism can move along the length direction of the column. One end of the connecting piece is directly or indirectly connected to the column, and the other end of the connecting piece is directly or indirectly connected to the support mechanism; one end of the support mechanism is directly or indirectly movably connected to the moving mechanism; the motor drives the chain to rotate to drive the moving mechanism to move, so that the free end of the support mechanism drives the contact wire and / or the carrier cable to move to the working position, the non-working position or switch between the working position and the non-working position. 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 support mechanism directly or indirectly drives the contact wire and / or the carrier cable to move towards the working position or towards the non-working position. It further includes a driving sprocket, and the motor drives the driving sprocket to rotate and drives the moving mechanism to move along the length direction of the column through the chain. It further includes a driven sprocket. The driving sprocket drives the driven sprocket through the chain, and the rotation of the chain drives the moving mechanism to move. It further includes a direction rotation mechanism. The direction rotation mechanism is directly or indirectly arranged on the moving mechanism or the column. The motor drives the moving mechanism to move up or down, driving the support mechanism movably connected to the direction rotation mechanism to move, so that the contact wire and / or the carrier cable in the support mechanism move to the working position, the non-working position or switch between the working position and the non-working position. The operation steps of the mobile catenary are as follows: The motors respectively arranged in each active drive type retractable support device drive the corresponding moving mechanisms to move, so that the moving mechanisms move up along the length direction of the column. The moving mechanism drives one end of the support mechanism to move up along the length direction of the column; the moving distances of each moving mechanism on their respective corresponding columns are equivalent. The free end of each support mechanism, that is, the other end of each support mechanism, moves along the direction away from the column, driving the contact wire and / or the carrier cable to move towards the working position. The contact wire and / or the carrier cable directly or indirectly arranged at the free end of each support mechanism basically form a straight line when in the working position, and at the same time, the contact wire and / or the carrier cable are kept at the same horizontal height.

2. The method according to claim 1, wherein: The support mechanism can realize the horizontal rotation of the overall retractable support device through the direction rotation mechanism.

3. The method according to claim 1, wherein: The direction rotation mechanism includes a rotating piece for providing horizontal rotation for the support mechanism and a rotating piece for providing retracting rotation for the support mechanism.

4. The method according to claim 3, wherein: The setting methods of the direction rotation mechanism are as follows: The first one: The rotating member that provides horizontal rotation for the support mechanism includes a rotating shaft; the rotating member that provides retractable rotation for the support mechanism includes a hinge member. The rotating shaft is directly or indirectly arranged on the moving mechanism, the hinge member is arranged on the rotating shaft, and one end of the support mechanism is hinged to the hinge member. The second one: The rotating member that provides horizontal rotation for the support mechanism includes a hinge member; the rotating member that provides retractable rotation for the support mechanism includes a rotating shaft. The hinge member is directly or indirectly arranged on the moving mechanism, the rotating shaft is directly or indirectly arranged on the hinge member, and one end of the support mechanism is directly or indirectly movably connected to the rotating shaft. The third one: The rotating member that provides horizontal rotation for the support mechanism includes a first rotating member; the rotating member that provides retractable rotation for the support mechanism includes a second rotating member. The first rotating member is directly or indirectly connected to the moving mechanism, and one end of the support mechanism is directly or indirectly connected to the second rotating member. The fourth one: The rotating member that provides horizontal rotation for the support mechanism includes a first ring, and the rotating member that provides retractable rotation for the support mechanism includes a second ring. The first ring is directly or indirectly connected to the moving mechanism, one end of the support mechanism is directly or indirectly connected to the second ring, and the first ring is buckled with the second ring; or the fifth one: A universal hinge member is adopted, and one end of the support mechanism is directly or indirectly arranged on the moving mechanism through the universal hinge member.

5. The method according to claim 1, wherein: The direction rotation mechanism is directly or indirectly arranged on the moving mechanism and / or the column. One end of the support mechanism is directly or indirectly movably connected to the moving mechanism through the direction rotation mechanism, and one end of the connecting member is movably connected to the column through the direction rotation mechanism. Or One end of the support mechanism is directly or indirectly movably connected to the moving mechanism through the direction rotation mechanism, and one end of the connecting member is movably connected to the support mechanism.

6. The method according to any one of claims 1 to 3, characterized in that: The support mechanism includes 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 to the direction rotation mechanism or movably connected to the moving mechanism. The other ends of the first connecting rod and the second connecting rod are movably connected with a suspension assembly, and a catenary and / or a contact wire are arranged on the suspension assembly.

7. The method according to claim 4, characterized in that: It further includes a suspension assembly. The first setting method: The suspension assembly is directly or indirectly arranged at the other end of the support mechanism; a catenary and / or a contact wire are directly or indirectly arranged on the suspension assembly; or The second setting method: It further includes an insulator. One end of the insulator is directly or indirectly connected to the suspension assembly, and a contact wire is directly or indirectly arranged at the other end of the insulator.

8. The method according to any one of claims 1 to 5, characterized in that: A limiting structure for assisting the vertical movement of the moving mechanism is arranged on the column; the limiting structure includes a slideway, a chute, a slide rail, a track or a limiting frame, and the moving mechanism moves along the length direction of the column in the slideway, the chute, the slide rail, the track or the limiting frame.

9. The method according to claim 1, wherein: In each active drive type retractable support device, a motor provided therein drives a corresponding moving mechanism to move. The moving stroke of each of the moving mechanisms along the corresponding column is equal, so that the free end of the support mechanism drives the contact wire and / or the messenger wire to move to the working position or the non-working position.

10. The method according to claim 9, characterized in that: During the process that a plurality of the support mechanisms in the pantograph catenary system rotate when in the working position state, or the non-working position state, or switch between the working position and the non-working position, the support mechanism can rotate in the horizontal direction through the direction rotation mechanism.

11. The method according to any one of claims 1 to 5, characterized in that: The first setting structure is that a gantry is arranged at at least one end of the pantograph catenary system. A moving trolley and a driving device are arranged on the gantry, and the driving device is used to drive the moving trolley to move on the cross beam of the gantry to drive the messenger wire and / or the contact wire to move. The second setting structure is that a gravity compensation device is arranged at at least one end of the pantograph catenary system, and the messenger wire and / or the contact wire act on the gravity compensation device directly or indirectly; or The third setting structure is that a spring mechanism is arranged at at least one end of the pantograph catenary system, and the messenger wire and / or the contact wire act on the spring mechanism directly or indirectly; The fourth setting structure is that a dragging mechanism is arranged at at least one end of the pantograph catenary system, and the pulling force provided by the dragging mechanism acts on the messenger wire and / or the contact wire directly or indirectly; or The fifth setting mechanism is that both ends of the pantograph catenary system adopt any two-by-two combination of the first to the fourth types.

12. The method according to claim 1, wherein: It further includes a step for balancing the unbalanced pulling forces of the messenger wire and / or the contact wire on the left and right sides of the support mechanism: During the process that the support mechanism rotates when in the working position state, or the non-working position state, or switches between the working position and the non-working position, when the pulling forces of the messenger wire and / or the contact wire on the left and right sides acting on the support mechanism are unbalanced, the support mechanism can rotate in the horizontal direction through the direction rotation mechanism, so that the pulling forces of the messenger wire and / or the contact wire on the left and right sides acting on the support mechanism become balanced.

13. The method according to claim 12, wherein: When the other end of the support mechanism drives the contact wire and / or the messenger wire to move towards the working position or the non-working position, the moving trolley on the gantry is driven to drive the messenger wire and / or the contact wire to move.

14. Operating method of a mobile catenary by an active drive type retractable support device, characterized in that: In the pantograph catenary system, more than two active drive type retractable support devices are adopted. The other ends of the support mechanisms in a plurality of active drive type retractable support devices are directly or indirectly provided with the messenger wire and / or the contact wire. The messenger wire and / or the contact wire directly or indirectly installed at the free end of the support mechanism are kept at the same horizontal height and basically form a straight line through the respective motors on the columns; The active drive type retractable support device includes a column, a support mechanism, a moving mechanism, a connecting piece, a motor and a chain, and further includes a contact wire and / or a messenger wire, wherein The moving mechanism is capable of moving along the longitudinal direction of the column. One end of the connecting member is directly or indirectly connected to the column, and the other end of the connecting member is directly or indirectly connected to the supporting mechanism. One end of the supporting mechanism is directly or indirectly movably connected to 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 wire and / or the catenary to move to the working position, the non-working position or switch between the working position and the non-working position. The operation steps are as follows: The motor provided in each active drive type retractable support device drives the corresponding moving mechanism to move, so that the moving mechanism moves downward along the longitudinal direction of the column. The moving mechanism drives one end of the supporting mechanism to move downward along the longitudinal direction of the column. The moving stroke of each moving mechanism corresponding to its respective column is equivalent. The free end of each supporting mechanism, that is, the other end of the supporting mechanism, moves along the direction close to the column, driving the contact wire and / or the catenary to move towards the non-working position. It also includes steps for balancing the unbalanced pulling forces of the catenary and / or the contact wire on the left and right sides of the supporting mechanism: During the process that the supporting mechanism rotates in the working position state, the non-working position state or switches between the working position and the non-working position, when the pulling forces of the catenary and / or the contact wire acting on the supporting mechanism on the left and right sides are unbalanced, the supporting mechanism can rotate in the horizontal direction through the direction rotation mechanism, so that the pulling forces of the catenary and / or the contact wire acting on the supporting mechanism on the left and right sides become balanced.

15. The method according to claim 14, wherein: When the other end of the supporting mechanism drives the contact wire and / or the catenary to move towards 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.

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