CN114148222A

CN114148222A - Flexible mobile contact net for large freight yard containers and operation method

Info

Publication number: CN114148222A
Application number: CN202111565123.6A
Authority: CN
Inventors: 朱鹏飞; 于晓英; 李彦华; 孙永刚
Original assignee: Lanzhou Xinwei Vehicle Equipment Co ltd
Current assignee: Lanzhou Xinwei Vehicle Equipment Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-08
Anticipated expiration: 2041-12-20
Also published as: CN114148222B

Abstract

The invention relates to a flexible mobile contact net for large freight yard containers and an operation method, which at least comprises a plurality of supporting structures, a hydraulic driving device, a catenary cable and/or a contact line; the carrier cable and/or the contact wire are directly or indirectly arranged on the supporting structure; the hydraulic driving device is used for directly or indirectly providing driving force to control the carrier cable and/or the contact line to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position. The flexible contact net carrier cable is more uniform in stress, more stable and reliable in driving, short in construction period, small in influence of factors such as weather and temperature difference, capable of being widely applied to various severe environments, long in service life, capable of being improved on the basis of the existing contact net, convenient to install and maintain and the like.

Description

Flexible mobile contact net for large freight yard containers and operation method

Technical Field

The invention belongs to the field of electrified railway mobile contact networks, and particularly relates to a large goods yard container flexible mobile contact network and an operation method.

Background

With the propulsion of the electric traction of railways, the electric locomotives are adopted to replace the internal combustion locomotives in the transportation of China railway trunks. Electrification is realized in a cargo loading and unloading line or warehousing maintenance. At present, a rigid movable contact net system is adopted, but the existing rigid movable contact net system has extremely high cost, complex structure and inconvenient installation, has high requirements on the use conditions of the line and poor structural reliability; the motor is used for driving the rotating support to rotate so as to drive the moving section of the overall moving contact net to move to one side of a rail, in the mode, the bus bar is integrally arranged at the tail end of the rotating support, and the motor is more and difficult to control the synchronism of the motor or the driving of the electric push rod.

On the other hand, in the prior art, a flexible movable contact net is also used, a motor is used for directly dragging a catenary on one side of the flexible contact net to enable the contact line to move to one side of a rail, and the mode has the defects of insufficient dragging force, unstable operation and the like for the movable contact net with a long distance of an integral anchor section; because only one balance weight is adopted, the length of the movable contact net is generally not more than 800 m.

The ten thousand ton heavy load train adopts a double-machine or multi-machine traction running super-long and super-heavy cargo train, which is characterized in that: the vehicle has large load capacity; the number of trains is large. According to the main technical policy of the existing railway, 5000t heavy-load freight trains are driven, the effective length of the arrival and departure line of a station is 1050m, 10000t heavy-load freight trains are driven on a special coal conveying line, and the effective length of the arrival and departure line of part of stations is 1700 m. Comprises a unit type heavy-duty train, a combined type heavy-duty train and an entire-row type heavy-duty train.

For such a long-distance heavy-duty train, for example, a ten thousand-ton heavy-duty train of 1400m to 1700m, if the diesel locomotive is used for shunting operation, a plurality of trains need to be separated, and the existing technology has high cost and needs to rent the diesel locomotive to stop at a loading and unloading point; when the electric tractor reaches a loading and unloading point, the internal combustion engine and the electric tractor need to be exchanged, so that the efficiency is extremely low; in order to exchange the traction vehicles, new stop lines and switching lines are required, and the investment is increased. The key point is that the existing diesel locomotive has no high-power locomotive and cannot pull a heavy-load train. In the existing flexible contact net technology, the technology comprising the existing practical application and the prior patent application document have no flexible movable contact net which can meet the cargo handling line or warehousing maintenance of a ten-thousand-ton train.

Disclosure of Invention

Through continuous research and practice of the applicant, the fact that the motor is directly or indirectly driven at one end of a catenary cable and/or a contact line is found to be very easy to damage, the weight of the weight is 3 tons to 5 tons, and in the existing technical scheme, the weight of the weight is required to be borne by the motor no matter the wrist arm supporting structure is in a working position or a non-working position. Therefore, in order to find a more effective and more stable solution, the invention provides a flexible mobile contact system for large freight yard containers, provides a new solution in a mode of innovative structure, effectively solves the problem that a motor is easy to damage in the operation process of the current mobile contact system, and ensures the safe and stable operation of the mobile contact system.

In order to realize the scheme, the invention provides a flexible mobile contact net for large freight yard containers, which at least comprises a plurality of supporting structures, a hydraulic driving device, a catenary and/or a contact line; wherein

The carrier cable and/or the contact wire are directly or indirectly arranged on the supporting structure; the hydraulic driving device is used for directly or indirectly providing driving force to control the carrier cable and/or the contact line to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

The prior art does not adopt a hydraulic device to drive and control the carrier cable and the contact wire to switch between the working position and the non-working position, and the hydraulic device is adopted to directly control the carrier cable and/or the contact wire to drive the supporting structure to rotate to the working position or the non-working position or switch between the working position and the non-working position. The driving force of the hydraulic device is more stable and reliable.

The device further comprises an auxiliary acting force providing device, and the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact wire; the force provided by the auxiliary force providing means acts directly or indirectly on the messenger and/or the other end of the contact wire.

Further, the hydraulic driving device and the auxiliary acting force providing device interact to drive the carrier cable and/or the contact wire to rotate to the working position or rotate to the non-working position or switch between the working position and the non-working position.

Further, the auxiliary acting force providing device comprises one or a combination of more than two of a counterweight structure, a hydraulic device, a dragging motor and a push-pull device.

Further, any one of the following structural forms is included:

the first method comprises the following steps: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the force provided by the counterweight structure directly or indirectly acts on the other end of the catenary and/or the contact line;

and the second method comprises the following steps: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the force provided by the dragging motor directly or indirectly acts on the other end of the catenary and/or the contact line;

and the third is that: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the force provided by the push-pull device directly or indirectly acts on the other end of the catenary and/or the contact line;

and fourthly: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the force provided by the hydraulic device acts directly or indirectly on the other end of the catenary and/or contact line;

and a fifth mode: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the counterweight structure and the dragging motor act together to provide an auxiliary acting force to act on the other end of the catenary and/or the contact line;

and a sixth mode: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the counterweight structure and the push-pull device act together to provide an auxiliary acting force to act on the other end of the carrier cable and/or the contact line;

seventh, the method comprises: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the counterweight structure and the hydraulic device act together to provide an auxiliary acting force to act on the other end of the catenary and/or the contact line; or

An eighth method: the driving force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact line; the counterweight structure, the dragging motor and the push-pull device act together to provide auxiliary acting force to act on the other end of the catenary and/or the contact line.

Further, at one end position of the messenger and/or the contact line:

the hydraulic driving device provides driving force to drive the carrier cable and/or the contact line to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position; or

The hydraulic driving device and the counterweight structure cooperate to provide driving force to control the support structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Furthermore, the lifting mechanism is further included, the hydraulic driving device provides driving force to directly or indirectly act on the lifting mechanism, and the catenary and/or the contact wire directly or indirectly act on the lifting mechanism.

Further, the driving force provided by the hydraulic driving device drives the lifting mechanism to ascend or descend so as to directly or indirectly drive the carrier cable and/or the contact line to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Furthermore, the lifting mechanism further comprises a guide structure, and the guide structure is used for providing guidance for the lifting mechanism in the actuating process of the hydraulic driving device.

Further, the guide structure is independently arranged, or the guide structure is directly or indirectly arranged on the upright post or the frame.

Furthermore, a guide track is arranged on the upright post or the other support frame; or

On the body of the upright post or the support frame arranged additionally, the extending edge of the upright post or the support frame body in the length direction is used as a guide track of the guide structure;

further, the hydraulic driving device drives the lifting mechanism to ascend or descend along the guide structure to drive the carrier cable and/or the contact line to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Further, the hydraulic driving device has a one-stage lifting structure, or the hydraulic driving device has more than two-stage lifting structures.

The counterweight structure is characterized by further comprising a bearing piece, wherein the bearing piece is used for bearing the counterweight structure, and the counterweight structure is driven to ascend or descend by the bearing piece.

Furthermore, one end of the catenary and/or the contact line directly or indirectly acts on the counterweight structure, the support piece drives the counterweight structure to ascend or descend, and the catenary and/or the contact line are driven to drive the support structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Further, the supporting piece is directly or indirectly arranged on the lifting mechanism, and the supporting piece can move on the lifting mechanism.

Further, in the process that the hydraulic driving device drives the lifting mechanism to move up and down, the bearing piece can be driven to move on the lifting mechanism relatively.

Further, the stroke length of the carrier ascending or descending can be greater than or equal to 2 times the stroke length of the hydraulic drive device.

Further, in the process that the hydraulic driving device drives the lifting mechanism to ascend or descend, the hydraulic driving device drives the supporting piece to synchronously ascend or descend on the lifting mechanism.

Furthermore, the lifting mechanism comprises a tension transmission piece, one end of the tension transmission piece directly or indirectly acts on the bearing piece, and the bearing piece is driven by the tension transmission piece to synchronously ascend or descend on the lifting mechanism.

Furthermore, the lifting mechanism also comprises a steering component which can ascend or descend along with the lifting mechanism.

Further, the other end of the tension transmission member passes around the steering member and then acts downward on the fixing point.

Furthermore, in the process of ascending or retracting of the output shaft of the hydraulic driving device, the steering component is driven to ascend or descend along with the output shaft of the hydraulic driving device, so that one end of the tension transmission piece drives the supporting piece to ascend or descend synchronously.

Further, in the first case:

the bearing piece drags the counterweight structure to rise from a lower position to a higher position, and the carrier cable and/or the contact line drive the support structure to rotate from a working position to a non-working position;

the support piece drags the counterweight structure to descend from a higher position to a lower position, and the carrier cable and/or the contact line drive the support structure to rotate from a non-working position to a working position;

or

In the second case:

the bearing piece drags the counterweight structure to rise from a lower position to a higher position, and the carrier cable and/or the contact line drive the support structure to rotate from a non-working position to a working position;

the support piece drags the counterweight structure to descend from a higher position to a lower position, and the carrier cable and/or the contact line drive the support structure to rotate from a working position to a non-working position. Or

In the third case: one end of the carrier cable and/or the contact line directly or indirectly acts on the bearing piece;

the bearing piece rises from a lower position to a higher position, and the carrier cable and/or the contact line drive the support structure to rotate from a non-working position to a working position;

the supporting piece descends from a higher position to a lower position, and the carrier cable and/or the contact line drive the supporting structure to rotate from a working position to a non-working position.

Further, the weight of the counter weight structure at one end of the messenger and/or the contact line is greater than the weight of the counter weight structure at the other end of the messenger and/or the contact line.

Furthermore, the hydraulic driving device has a working state or a non-working state, and when the hydraulic driving device is in the non-working position state, the gravity of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device;

the output shaft of the hydraulic driving device extends or retracts to be in a working state;

when the output shaft of the hydraulic driving device extends or retracts, the heavy counterweight structure is driven to ascend or descend by the supporting piece, so that the carrier cable and/or the contact line are directly or indirectly controlled to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Further, in the first case: after the heavy counterweight structure at one end of the carrier cable and/or the contact line descends, the heavy counterweight structure can be directly or indirectly parked on the ground or a bearing platform arranged additionally;

in the second case: after the heavy counterweight structure at one end of the carrier cable and/or the contact line descends, the bearing piece can be directly or indirectly parked on the ground or a bearing platform arranged additionally; or

In the third case: after the heavy counterweight structure at one end of the carrier cable and/or the contact line descends, the lifting structure can be directly or indirectly parked on the ground or a carrier platform arranged additionally.

The other aspect of the invention also provides an operation method of the mobile contact network, which comprises the following steps: the operation method adopts the flexible mobile contact net for the large freight yard containers, and at least comprises the following steps:

the force provided by the hydraulic driving device directly or indirectly acts on one end of the catenary and/or the contact wire, and the force provided by the auxiliary acting force providing device directly or indirectly acts on the other end of the catenary and/or the contact wire;

the hydraulic driving device directly or indirectly provides driving force to control the carrier cable and/or the contact line to drive the supporting structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Furthermore, one end of the catenary and/or the contact line directly or indirectly acts on a heavier counterweight structure, the support piece drives the counterweight structure to ascend or descend, and the catenary and/or the contact line are driven to drive the support structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

The invention has the following beneficial effects:

1. according to the invention, a multi-stage lifting structure is adopted to increase the lifting and descending formation of a balance weight structure (balance weight), and the balance weight can be moved by increasing the stroke by adopting a shorter hydraulic driving device.

2. The biggest bright point of the invention is that when the carrier cable and/or the contact line are in a working position (above the railway) or a non-working position (at the side of the railway), the weight of the counterweight structure does not act on the hydraulic driving structure. It should be added here that in most cases in mobile catenary systems, the catenary and/or the contact line are in the working position and in the standby working position. In this case, the hydraulic drive device is separated to be in a non-working position state, and only when the support structure needs to be rotated to the side of the railway, the hydraulic drive device is used for directly or indirectly driving the counterweight structure to ascend, and the cantilever support structure is driven to swing to the side of the railway and is kept for a period of time, and the maintenance operation or cargo loading and unloading can be carried out on the freight train in the period of time. When the freight train needs to be driven out of the station, the hydraulic driving device actuates to drive the catenary and the contact line to rotate to the working position, the direct counterweight structure is directly or indirectly borne on the ground, at the moment, the hydraulic driving device is in a non-working state, the output shaft of the hydraulic driving device does not bear the gravity of the counterweight structure, and the support structure in the movable contact line is positioned above the railway and is in a standby working state.

3. The flexible contact net carrier cable provided by the invention has the advantages of more uniform stress, short construction period, small influence by factors such as weather, temperature difference and the like, wide application in various severe environments, long service life, improvement on the basis of the existing contact net, convenience in installation and maintenance, similar fixed contact net structure and the like.

4. By adopting the contact line provided by the invention, the shunting operation of the ten-thousand-ton heavy-duty train is not carried out by adopting the internal combustion locomotive, the traditional condition that a plurality of trains are required to be disconnected and even the heavy-duty train cannot be pulled is overcome, the requirement of goods loading and unloading lines or warehousing maintenance of the ten-thousand-ton train can be effectively met, the working efficiency is improved, the expense for purchasing the internal combustion locomotive is greatly saved, and the labor cost for allocating, maintaining and repairing the internal combustion locomotive and the like in the prior art is saved.

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 diagram of a mobile contact net according to the present invention;

FIG. 2 is one of the schematic diagrams of the upgrading structure of the counterweight structure of the mobile contact system of the invention;

FIG. 3 is a second schematic view of the upgrading structure of the counterweight structure of the mobile contact system of the present invention;

FIG. 4 is a partial schematic view of FIG. 3;

fig. 5 is a third schematic view of the upgrading structure of the counterweight structure of the mobile overhead line system.

In the figure: 1. a support structure; 2. a hydraulic drive device; 3. a catenary cable; 4. a contact line; 5. a first counterweight structure; 6. a second counterweight structure; 7. a lifting mechanism; 8. a guide structure; 9. a support member; 10. a tension transmission member; 11. a steering member.

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 consistent with certain aspects of the invention, as detailed in the appended claims.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present embodiment provides a flexible mobile contact system for large cargo containers, which at least includes a plurality of support structures 1 and hydraulic driving devices 2, and further includes a catenary cable 3 and/or a contact line 4; wherein, the carrier cable 3 and/or the contact line 4 are directly or indirectly arranged on the supporting structure 1; the hydraulic driving device 2 is used for directly or indirectly providing driving force to control the carrier cable 3 and/or the contact line 4 to drive the supporting structure 1 to rotate to a working position or a non-working position or switch between the working position and the non-working position.

The prior art does not disclose the prior scheme that a hydraulic device is not adopted to drive and control the carrier cable 3 and the contact wire 4 to switch between the working position and the non-working position, and the hydraulic device is adopted to directly or control the carrier cable 3 and/or the contact wire 4 to drive the supporting structure 1 to rotate to the working position or the non-working position or switch between the working position and the non-working position. The driving force of the hydraulic device is more stable and reliable.

As a preferable implementation mode, the embodiment also comprises an auxiliary acting force providing device, and the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the force provided by the auxiliary force providing means acts directly or indirectly on the messenger wire 3 and/or the other end of the contact wire 4. The hydraulic driving device 2 interacts with the auxiliary acting force providing device to drive the carrier cable 3 and/or the contact wire 4 to rotate to the working position or rotate to the non-working position or switch between the working position and the non-working position.

In a preferred embodiment, the auxiliary force providing device in this embodiment includes one or a combination of two or more of the first counterweight structure 5, the dragging motor, the hydraulic device and the push-pull device.

The structure form comprises any one of the following structural forms:

the first method comprises the following steps: the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the force provided by the first counterweight structure 5 acts directly or indirectly on the other end of the messenger wire 3 and/or the contact wire 4;

and the second method comprises the following steps: the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the force provided by the dragging motor directly or indirectly acts on the other end of the catenary cable 3 and/or the contact line 4;

and the third is that: the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the force provided by the push-pull device acts directly or indirectly on the other end of the catenary 3 and/or the contact wire 4;

and a fifth mode: the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the first counterweight structure 5 and the dragging motor act together to provide auxiliary acting force to act on the other end of the catenary cable 3 and/or the contact line 4;

and a sixth mode: the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the first counterweight structure 5 and the push-pull device act together to provide an auxiliary acting force to act on the other end of the carrier cable 3 and/or the contact line 4; or

An eighth method: the driving force provided by the hydraulic driving device 2 directly or indirectly acts on one end of the catenary wire 3 and/or the contact wire 4; the first counterweight structure 5, the dragging motor and the push-pull device act together to provide auxiliary acting force to act on the other end of the catenary 3 and/or the contact line 4.

As a preferred embodiment, it is additionally stated in this example that at one end position of the messenger wire 3 and/or the contact wire 4:

one embodiment is as follows: the hydraulic driving device 2 provides driving force to drive the carrier cable 3 and/or the contact line 4 to drive the supporting structure 1 to rotate to a working position or a non-working position or switch between the working position and the non-working position; or

In another embodiment: the hydraulic driving device 2 and the second counterweight structure 6 cooperate to provide driving force to control the support structure 1 to rotate to the working position or the non-working position or switch between the working position and the non-working position.

As a preferable embodiment, the lifting mechanism 7 is further included in the embodiment, the hydraulic driving device 2 provides driving force to directly or indirectly act on the lifting mechanism 7, and the messenger wire 3 and/or the contact wire 4 directly or indirectly act on the lifting mechanism 7. Preferably, the lifting mechanism 7 is driven by the driving force provided by the hydraulic driving device 2 to ascend or descend so as to directly or indirectly drive the catenary cable 3 and/or the contact wire 4 to drive the supporting structure 1 to rotate to the working position or the non-working position or switch between the working position and the non-working position.

In order to ensure the stability of the lifting, the present embodiment further comprises a guiding structure 8, and the guiding structure 8 is used for providing guidance for the lifting mechanism 7 during the actuation of the hydraulic driving device 2. The guide structure 8 is independently arranged, or the guide structure 8 is directly or indirectly arranged on a stand column or a shelf.

Preferably, a guide rail is provided on the column or another support frame. Alternatively, the guide rail of the guide structure 8 may be formed by an extension of the column or the body of the support frame in the longitudinal direction. The hydraulic driving device 2 drives the lifting mechanism 7 to ascend or descend along the guide structure 8 to drive the carrier cable 3 and/or the contact line 4 to drive the supporting structure 1 to rotate to a working position or a non-working position or switch between the working position and the non-working position.

It should be added that, in this embodiment, the hydraulic driving device 2 has a one-stage lifting structure, or the hydraulic driving device 2 includes more than two-stage lifting structures.

As a preferred embodiment, in this embodiment, the present invention further includes a supporting member 9, where the supporting member 9 is used for supporting the counterweight structure, and the supporting member 9 drives the second counterweight structure 6 to ascend or descend.

In this embodiment, one end of the catenary cable 3 and/or the contact line 4 directly or indirectly acts on the second counterweight structure 6, and the support member 9 drives the counterweight structure to ascend or descend, so as to drive the catenary cable 3 and/or the contact line 4 to drive the support structure 1 to rotate to a working position or a non-working position or switch between the working position and the non-working position.

It should be added that, in the present embodiment, the supporting member 9 is directly or indirectly disposed on the lifting mechanism 7, and the supporting member 9 can move on the lifting mechanism 7. In the process that the hydraulic driving device 2 drives the lifting mechanism 7 to move up and down, the supporting piece 9 can be driven to move on the lifting mechanism 7 relatively.

In actual engineering operation, in order to effectively control the stroke, the counterweight structure (the stroke of the weight ascending and descending is generally about 5 meters) in this embodiment adopts a two-stage ascending and descending method to lift or lower the counterweight structure, and the stroke length of the support 9 ascending or descending can be greater than or equal to 2 times the stroke length of the hydraulic drive device 2, in consideration of stability and safety. In the process that the hydraulic driving device 2 drives the lifting mechanism 7 to ascend or move downwards, the hydraulic driving device 2 drives the supporting piece 9 to synchronously ascend or move downwards on the lifting mechanism 7.

In this embodiment, the lifting device further comprises a tension transmission member 10, one end of the tension transmission member 10 directly or indirectly acts on the supporting member 9, and the supporting member 9 is driven by the tension transmission member 10 to synchronously ascend or descend on the lifting mechanism 7. The tension transmission member 10 in this embodiment may be a pull cord, and the pull cord may be a wire rope for improving stability. Two steel cords may be used. The lifting mechanism further comprises a steering component 11, and the steering component 11 can move up or down along with the lifting mechanism 7. The other end of the tension transmission element 10 passes around the steering element 11 and acts downward on a fixed point.

As shown in fig. 2 or fig. 3, one end of the steel wire rope acts on the supporting member 9, and can pull the supporting member 9 to ascend or descend, in this embodiment, the supporting member 9 is slidably disposed on the ascending and descending structure, at this time, the supporting member 9 is independent and not disposed on the ascending and descending structure, and it is also feasible to separately dispose the supporting member 9, and only a guiding device for the supporting member 9 to move up and down needs to be additionally installed.

Therefore, in the process of ascending or retracting the output shaft of the hydraulic driving device 2 in this embodiment, the steering component 11 is driven to ascend or descend together, so that one end of the tension transmission member 10 drives the supporting member 9 to ascend or descend synchronously.

It should be added here that the catenary 3 and the contact line 4 in a mobile catenary are normally in a working position (above the railway) at ordinary times. In most cases, the catenary 3 and the contact line 4 of the movable contact net can be arranged to be in a non-working position (railway side) at ordinary times according to the requirements of actual working conditions

Therefore, the present embodiment describes the following cases: in the first case:

the supporting piece 9 drags the second counterweight structure 6 to rise from a lower position to a higher position, and the carrier cable 3 and/or the contact line 4 drive the supporting structure 1 to rotate from a working position to a non-working position;

the supporting piece 9 drags the second counterweight structure 6 to descend from a higher position to a lower position, and the carrier cable 3 and/or the contact line 4 drive the supporting structure 1 to rotate from a non-working position to a working position;

or

In the second case:

the supporting piece 9 drags the second counterweight structure 6 to rise from a lower position to a higher position, and the carrier cable 3 and/or the contact line 4 drive the supporting structure 1 to rotate from a non-working position to a working position;

the supporting piece 9 drags the second counterweight structure 6 to descend from a higher position to a lower position, and the carrier cable 3 and/or the contact line 4 drive the supporting structure 1 to rotate from a working position to a non-working position.

In the third case: in the case of no counterweight structure, one end of the catenary and/or contact line acts directly or indirectly on the support;

It should be added to this embodiment that the carrier wire 3 and contact wire 4 need to be held in tension in either the active or inactive position. In this embodiment, a first acting force providing device and a second acting force providing device are respectively arranged at two ends of the mobile overhead line system, and the force provided by the first acting force providing device directly or indirectly acts on one end of the catenary 3 and/or the contact line 4; the force provided by the second acting force providing device acts directly or indirectly on the other end of the messenger wire 3 and/or the contact wire 4;

the first force providing means may comprise a hydraulic drive 2 arranged at one end of the moving catenary, as described above, or the hydraulic drive 2 may cooperate with the second counterweight structure 6 to provide the force.

The second acting force providing device comprises the auxiliary acting force providing device, and the auxiliary acting force providing device comprises one or more of a counterweight structure, a dragging motor and a push-pull device.

In this embodiment, counterweight structures (balance weights) are arranged at two ends of the mobile contact network, and the weight of the second counterweight structure 6 at one end of the catenary 3 and/or the contact wire 4 is greater than the weight of the first counterweight structure 5 at the other end of the catenary 3 and/or the contact wire 4.

In a preferred embodiment, the hydraulic driving device 2 has an operating state or a non-operating state, and when the hydraulic driving device 2 is in the non-operating position, the gravity of the heavier second counterweight structure 6 does not directly or indirectly act on the output shaft of the hydraulic device;

the output shaft of the hydraulic driving device 2 extends or retracts to be in a working state;

when the output shaft of the hydraulic driving device 2 extends or retracts, the heavier second counterweight structure 6 is driven to ascend or descend by the supporting piece 9, so that the carrier cable 3 and/or the contact wire 4 are directly or indirectly controlled to drive the supporting structure 1 to rotate to a working position or a non-working position or switch between the working position and the non-working position.

In this embodiment, the remaining gravity of the second counterweight structure 6 after lowering needs not to directly or indirectly act on the hydraulic drive device 2, and the hydraulic drive device 2 needs to be in a non-operating state after the second counterweight structure 6 is lowered. It should be added that the non-operating state mentioned here does not mean that the hydraulic drive device 2 itself is in the power-off state, and the control part of the hydraulic drive device 2 also needs to be in the live line state, which only means that the weight of the second counterweight structure 6 that is lowered can act on other load-bearing platforms, and the power output shaft of the hydraulic drive device 2 gradually transits from the state of bearing the weight of the second counterweight structure 6 to the state of no load-bearing. Until the hydraulic drive 2 is solved in the inoperative state (state without carrying the weight of the second counterweight). Of course, this is only an optimal condition, and in practical conditions, after the second counterweight structure 6 is lowered, the weight thereof can also be carried by the hydraulic drive structure.

To this end, several preferred embodiments are provided, the first case: after the heavier second counterweight structure 6 at one end of the carrier cable 3 and/or the contact line 4 descends, the heavier second counterweight structure 6 can be directly or indirectly parked on the ground or a bearing platform arranged additionally;

in the second case: after the heavy counterweight structure at one end of the carrier cable 3 and/or the contact line 4 descends, the supporting piece 9 can be directly or indirectly parked on the ground or a bearing platform arranged additionally; or

In the third case: after the heavy counterweight structure at one end of the carrier cable 3 and/or the contact line 4 descends, the lifting structure can be directly or indirectly parked on the ground or a carrier platform arranged additionally.

Preferably, one end of the catenary cable and/or the contact line directly or indirectly acts on a heavier counterweight structure, the support piece drives the counterweight structure to ascend or descend, and the catenary cable and/or the contact line are driven to drive the support structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

Preferably, the stroke length of the support element for raising or lowering can be greater than or equal to 2 times the stroke length of the hydraulic drive.

Preferably, in the process of ascending or retracting of the output shaft of the hydraulic driving device, the steering component is driven to ascend or descend along with the output shaft of the hydraulic driving device, so that one end of the tension transmission piece drives the supporting piece to ascend or descend synchronously.

Preferably, the hydraulic driving device has an operating state or a non-operating state, and when the hydraulic driving device is in the non-operating state, the gravity of the heavier counterweight structure does not directly or indirectly act on the output shaft of the hydraulic device;

The invention has the following beneficial effects:

according to the invention, a multi-stage lifting structure is adopted to increase the lifting and descending formation of a balance weight structure (balance weight), and the balance weight can be moved by increasing the stroke by adopting a shorter hydraulic driving device.

The biggest bright point of the invention is that when the carrier cable and/or the contact line are in a working position (above the railway) or a non-working position (at the side of the railway), the weight of the counterweight structure does not act on the hydraulic driving structure. It should be added here that in most cases in mobile catenary systems, the catenary and/or the contact line are in the working position and in the standby working position. In this case, the hydraulic drive device is separated to be in a non-working position state, and only when the support structure needs to be rotated to the side of the railway, the hydraulic drive device is used for directly or indirectly driving the counterweight structure to ascend, and the cantilever support structure is driven to swing to the side of the railway and is kept for a period of time, and the maintenance operation or cargo loading and unloading can be carried out on the freight train in the period of time. When the freight train needs to be driven out of the station, the hydraulic driving device actuates to drive the catenary and the contact line to rotate to the working position, the direct counterweight structure is directly or indirectly borne on the ground, at the moment, the hydraulic driving device is in a non-working state, the output shaft of the hydraulic driving device does not bear the gravity of the counterweight structure, and the support structure in the movable contact line is positioned above the railway and is in a standby working state.

The flexible contact net carrier cable provided by the invention has the advantages of more uniform stress, short construction period, small influence by factors such as weather, temperature difference and the like, wide application in various severe environments, long service life, improvement on the basis of the existing contact net, convenience in installation and maintenance, similar fixed contact net structure and the like.

By adopting the contact line provided by the invention, the shunting operation of the ten-thousand-ton heavy-duty train is not carried out by adopting the internal combustion locomotive, the traditional condition that a plurality of trains are required to be disconnected and even the heavy-duty train cannot be pulled is overcome, the requirement of goods loading and unloading lines or warehousing maintenance of the ten-thousand-ton train can be effectively met, the working efficiency is improved, the expense for purchasing the internal combustion locomotive is greatly saved, and the labor cost for allocating, maintaining and repairing the internal combustion locomotive and the like in the prior art is saved.

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 that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A flexible mobile contact net for large-scale freight yard containers, characterized in that: it includes at least several supporting structures and hydraulic drive devices, and also includes load-bearing cables and/or contact lines; wherein

The bearing cable and/or the contact line are directly or indirectly arranged on the support structure; the hydraulic drive device is used to directly or indirectly provide driving force to control the bearing cable and/or the contact line to drive the support structure to rotate to the working position or non-working bit or switch between working and non-working bits.

2. The flexible mobile contact net for large-scale freight yard containers according to claim 1, characterized in that: it further comprises an auxiliary force providing device, and the driving force provided by the hydraulic driving device acts directly or indirectly on the load-bearing cable and/or One end of the contact wire; the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the bearing cable and/or the contact wire.

3. The flexible mobile contact net for large-scale freight yard containers according to claim 2, wherein the hydraulic drive device interacts with the auxiliary force providing device to drive the load-bearing cable and/or the contact line to rotate to the working position or Rotate to non-working position or switch between working and non-working positions.

4. The flexible mobile contact net for large-scale freight yard containers according to claim 3, wherein the auxiliary force providing device comprises one or more of a counterweight structure, a drag motor, a hydraulic device and a push-pull device The combination.

5. The flexible mobile catenary for large-scale freight yard containers according to claim 4, characterized in that: it comprises any one of the following structural forms:

The first type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the force provided by the counterweight structure directly or indirectly acts on the bearing cable and/or the other end of the contact wire;

The second type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the force provided by the drag motor directly or indirectly acts on the bearing cable and/or the other end of the contact wire;

The third type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the force provided by the push-pull device directly or indirectly acts on the bearing cable and/or the contact line the other end of the line;

The fourth type: the driving force provided by the hydraulic driving device acts directly or indirectly on one end of the bearing cable and/or the contact line; the force provided by the hydraulic device directly or indirectly acts on the bearing cable and/or the contact line the other end of the line;

The fifth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the counterweight structure and the drag motor work together to provide an auxiliary force acting on the bearing cable. the other end of the force cable and/or contact wire;

The sixth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the counterweight structure and the push-pull device work together to provide an auxiliary force acting on the bearing force. the other end of the cord and/or contact wire;

The seventh: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the counterweight structure and the hydraulic device work together to provide an auxiliary force acting on the bearing force. the other end of the cord and/or contact wire; or

The eighth type: the driving force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line; the counterweight structure, the drag motor and the push-pull device work together Provide an auxiliary force acting on the other end of the cable and/or contact line.

6. The flexible mobile contact net for large cargo yard containers according to any one of claims 1 to 5, characterized in that: at one end of the load-bearing cable and/or the contact line:

The hydraulic drive device provides driving force to drive the load-bearing cable and/or the contact wire to drive the support structure to rotate to the working position or the non-working position or switch between the working position and the non-working position; or

It also includes a counterweight structure, the hydraulic drive device and the counterweight structure work together to provide a driving force to control the support structure to rotate to a working position or a non-working position or switch between the working position and the non-working position.

7 . The flexible mobile contact net for large cargo yard containers according to claim 6 , further comprising a lifting mechanism, and the hydraulic drive device provides a driving force to act directly or indirectly on the lifting mechanism, and the load-bearing cable acts on the lifting mechanism directly or indirectly. 8 . And/or the contact line acts directly or indirectly on the lift mechanism.

8. The flexible mobile contact net for large-scale freight yard containers according to claim 7, characterized in that: the driving force provided by the hydraulic drive device drives the lifting mechanism to ascend or descend, so as to directly or indirectly drive the load-bearing cable and/or The contact line drives the support structure to rotate to the working position or the non-working position or switch between the working position and the non-working position.

9 . The flexible mobile contact net for large-scale freight yard containers according to claim 9 , further comprising a guide structure, the guide structure is used to provide guidance for the lifting mechanism during the actuation of the hydraulic drive device. 10 .

10 . The flexible mobile contact net for large-scale freight yard containers according to claim 9 , wherein the guiding structure is independently arranged, or the guiding structure is directly or indirectly arranged on a column or a shelf. 11 .

11. The flexible mobile contact net for large-scale freight yard containers according to claim 10, characterized in that: a guide rail is provided on the upright column or a separately provided support frame; or

On the upright column or the body of the supporting frame provided separately, the extending edge of the upright column or the supporting frame body in the longitudinal direction is used as the guide rail of the guiding structure.

12 . The flexible moving contact net for large-scale freight yard containers according to claim 9 , wherein the hydraulic drive device drives the lifting mechanism to ascend or descend along the guide structure to drive the driving force cable. 13 . And/or the contact wire drives the support structure to rotate to the working position or the non-working position or switching between the working position and the non-working position.

13 . The flexible mobile contact net for large-scale freight yard containers according to claim 12 , wherein the hydraulic driving device has a one-stage lifting structure, or the hydraulic driving device includes two or more lifting structures. 14 .

14. The flexible mobile contact net for large-scale cargo yard containers according to any one of claims 6 to 13, characterized in that: further comprising a supporting member, the supporting member is used to carry the counterweight structure, and the supporting member is used to carry the counterweight structure through the The bracket drives the counterweight structure to rise or fall.

15. The flexible mobile contact net for large-scale cargo yard containers according to claim 14, characterized in that: one end of the bearing cable and/or the contact wire acts directly or indirectly on the counterweight structure, and the bearing The parts drive the counterweight structure to rise or fall, and the driving force cable and/or the contact wire drives the support structure to rotate to the working position or the non-working position or switch between the working position and the non-working position.

16 . The flexible mobile contact net for large cargo yard containers according to claim 15 , wherein the supporting member is directly or indirectly arranged on the lifting mechanism, and the supporting member can move on the lifting mechanism. 17 . .

17 . The flexible mobile contact net for large-scale freight yard containers according to claim 16 , wherein: during the process of driving the lifting mechanism to move up and down by the hydraulic driving device, the supporting member can be driven on the lifting mechanism. 18 . relative movement.

18. The flexible moving contact net for large cargo yard containers according to claim 16 or 17, characterized in that: in the process that the hydraulic drive device drives the lifting mechanism to rise or move downward, the hydraulic drive device drives the support The bracket moves up or down synchronously on the lifting mechanism.

19. The flexible mobile contact net for large-scale freight yard containers according to claim 18, characterized by comprising a tension transmission member, one end of the tension transmission member directly or indirectly acts on the support member, and the tension transmission member is transmitted through the tension transmission member. The supporting member drives the supporting member to move up or down synchronously on the lifting mechanism.

20 . The flexible mobile contact net for containers in a large cargo yard according to claim 19 , further comprising a steering member, the steering member being capable of rising or falling with the lifting mechanism. 21 .

21 . The flexible moving contact net for large-scale freight yard containers according to claim 20 , wherein the other end of the tension transmission member bypasses the steering member and acts downward on the fixed point. 22 .

22 . The flexible moving contact net for large-scale freight yard containers according to claim 20 , wherein the output shaft of the hydraulic drive device drives the steering member to rise or fall along with it in the process of rising or retracting, so that the pulling force is transmitted. 23 . One end of the piece drives the supporting piece to rise or move down synchronously.

23. The flexible mobile catenary for large cargo yard containers according to any one of claims 15 to 22, characterized in that:

The first case:

The supporting member drags the counterweight structure to rise from the lower position to the higher position, and the bearing cable and/or the contact wire drives the supporting structure to rotate from the working position to the non-working position;

The supporting member drags the counterweight structure to descend from the higher position to the lower position, and the bearing cable and/or the contact wire drives the supporting structure to rotate from the non-working position to the working position;

Second case:

The supporting member drags the counterweight structure to rise from the lower position to the higher position, and the bearing cable and/or the contact wire drives the supporting structure to rotate from the non-working position to the working position;

The supporting member drags the counterweight structure to descend from the higher position to the lower position, and the bearing cable and/or the contact wire drives the supporting structure to rotate from the working position to the non-working position; or

The third situation: one end of the load-bearing cable and/or the contact wire acts directly or indirectly on the support member;

The support member rises from the lower position to the higher position, and the bearing cable and/or the contact wire drives the support structure to rotate from the non-working position to the working position;

The support member descends from a higher position to a lower position, and the bearing cable and/or the contact wire drives the support structure to rotate from the working position to the non-working position.

24. The flexible mobile contact net for large-scale freight yard containers according to claim 23, wherein the weight of the counterweight structure at one end of the bearing cable and/or the contact line is greater than the weight of the other end of the bearing cable and/or the contact line the weight of the structure.

25. The flexible mobile catenary for large-scale freight yard containers according to claim 24, wherein the hydraulic drive device has a working state or a non-working state, and when the hydraulic drive device is in the non-working position, the heavier distribution The gravity of the heavy structure does not directly or indirectly act on the output shaft of the hydraulic device;

The output shaft of the hydraulic drive device is extended or retracted to a working state;

When the output shaft of the hydraulic drive device extends or retracts, the heavier counterweight structure is driven up or down by the support member, thereby directly or indirectly controlling the load-bearing cable and/or the contact line to drive the support structure to rotate to the working position or Non-working position or switching between working and non-working positions.

26. The flexible mobile contact net for large-scale cargo yard containers according to claim 25, characterized in that: in the first case: after the heavier counterweight structure at one end of the load-bearing cable and/or the contact line is lowered, the heavier counterweight structure It can be directly or indirectly parked on the ground or on a separate bearing platform;

The second case: after the heavier weight structure at one end of the load-bearing cable and/or the contact line is lowered, the support member can be directly or indirectly parked on the ground or on a separate bearing platform; or

The third situation: after the heavier counterweight structure at one end of the bearing cable and/or the contact line is lowered, the lifting structure can be directly or indirectly parked on the ground or on a separately provided bearing platform.

27. A method for operating a mobile catenary, characterized in that the operating method adopts the flexible mobile catenary of a large freight yard container according to any one of claims 1 to 26, and at least comprises the following steps:

The force provided by the hydraulic drive device acts directly or indirectly on one end of the bearing cable and/or the contact line, and the force provided by the auxiliary force providing device acts directly or indirectly on the other end of the bearing cable and/or the contact line;

The hydraulic drive device directly or indirectly provides driving force to control the load-bearing cable and/or the contact wire to drive the support structure to rotate to the working position or the non-working position or switch between the working position and the non-working position.

28. The method for operating a mobile catenary according to claim 27, wherein one end of the bearing cable and/or the contact wire acts directly or indirectly on the heavier counterweight structure, and the supporting member drives the counterweight structure. The heavy structure rises or falls, and the driving force cable and/or the contact wire drives the support structure to rotate to the working position or the non-working position or switch between the working position and the non-working position.

29. The method for operating a mobile catenary according to claim 28, characterized in that the stroke length of the support member rising or falling can be greater than or equal to twice the stroke length of the hydraulic drive device.

30. The method for operating a mobile catenary according to claim 29, characterized in that: in the process of rising or retracting the output shaft of the hydraulic drive device, the steering member is driven to rise or fall along with it, so that one end of the tension transmission member is Drive the support to move up or down synchronously.

31. The method for operating a mobile catenary according to claim 30, wherein the hydraulic drive device has a working state or a non-working state, and when the hydraulic drive device is in the non-working position, the heavier counterweight structure The gravity does not act directly or indirectly on the output shaft of the hydraulic device;