CN216508001U - Flexible gravity compensation type movable contact net for large goods yard - Google Patents
Flexible gravity compensation type movable contact net for large goods yard Download PDFInfo
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- CN216508001U CN216508001U CN202123346934.5U CN202123346934U CN216508001U CN 216508001 U CN216508001 U CN 216508001U CN 202123346934 U CN202123346934 U CN 202123346934U CN 216508001 U CN216508001 U CN 216508001U
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Abstract
The utility model relates to a flexible gravity compensation type mobile contact network for a large goods yard, which comprises a plurality of upright posts, a cantilever support structure, a carrier cable, a contact line, a first force mechanism and a second force mechanism; the first force mechanism and the second force mechanism interact with each other to drive the catenary and the contact net to move so as to drive the cantilever direct structure to switch between a working position and a non-working position; the auxiliary rotating mechanism is used for assisting the rotation of the cantilever supporting structure, and the cantilever supporting structure which is not rotated to the side edge of the railway is further driven to rotate by the aid of the auxiliary rotating mechanism, so that the problem that the cantilever supporting structure cannot rotate in place when swinging to the side edge of the railway in the prior art is effectively solved.
Description
Technical Field
The utility model relates to the field of electrified railway mobile contact networks, in particular to a flexible gravity compensation type mobile contact network for a large goods yard.
Background
The catenary and the contact line in the mobile contact network have the condition of not swinging in place when a cantilever in the mobile contact network swings to the side edge of a railway due to the influence of thermal expansion and cold and the existence of construction errors.
The existing method is that a weight is arranged at one end of a mobile contact network, a dragging mechanism is arranged at the other end of the mobile contact network, and a catenary cable and/or a contact line are/is pulled by the dragging mechanism, so that the contact line is moved from one side edge of a rail to the upper side of the rail or from the upper side of the rail to one side edge of the rail.
Through the continuous research and practice of the applicant, the above solution enables the effective implementation of driving the catenary and/or contact line to move to one side of the rail or above the rail, but in practice a new problem arises: the cantilever is arranged to rotate rightwards to drive the contact line and the catenary to move to one side of the rail, due to the fact that the contact line and the catenary have the characteristics of thermal expansion and cold contraction, when the rightmost cantilever moves to one side of the rail (the cantilever is approximately parallel to the rail), the rest of the cantilevers do not swing to one side of the rail completely, the farther the rotating cantilever from the right cantilever is away, the smaller the offset is, namely when the rightmost cantilever stops swinging, the rest of the cantilevers do not rotate to the position, particularly when a heavy-duty train suitable for long-distance overhead contact systems moves about 1600 meters, when the rightmost cantilever stops swinging after being in place, the farther the other cantilevers from the right cantilever are still in the state that the cantilevers do not swing to the position, even are located above the side of the rail, and therefore loading and unloading operations of other goods such as large goods yards and containers can be affected.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a novel mobile catenary to overcome the disadvantages of the related art.
In order to achieve the purpose, the utility model provides a flexible gravity compensation type mobile contact net for a large goods yard, which is characterized in that: the movable contact net comprises a plurality of stand columns, a cantilever support structure, a carrier cable, a contact line, a first force mechanism and a second force mechanism; wherein
The catenary and the contact line are arranged on the cantilever supporting structure, the cantilever supporting structure is correspondingly arranged on the upright post through a rotating shaft respectively, and the cantilever supporting structure can rotate on the upright post; the acting force provided by the first acting force mechanism acts on one end of the catenary and/or the contact wire, and the acting force provided by the second acting force mechanism acts on the other end of the catenary and/or the contact wire; the first force mechanism and the second force mechanism interact with each other to drive the carrier cable and the contact net to move so as to drive the cantilever direct structure to switch between a working position and a non-working position;
the auxiliary rotating mechanism is used for assisting the rotation of the cantilever supporting structure and comprises a first gear, a second gear, a rotating motor and a position sensor; the first gear is arranged at the extending end of the rotating shaft, the second gear is arranged on an output shaft of the rotating motor and can be meshed with the first gear, and the position sensor is used for detecting whether the cantilever supporting structure is located at a railway side non-working position or not.
Further, still include the rotating support, the rotating support is installed on the stand, the rotating support can drive the rotation motor rotation and make second gear and first gear engagement.
Furthermore, a position detection sheet is arranged on a rotating shaft of the wrist arm supporting structure, and the position sensor is used for detecting the position of the position detection sheet so as to control the motor to actuate or stop.
Further, still include the portal, the portal setting is at the both ends of removing the contact net.
Furthermore, the wrist support structure further comprises a support rotating shaft, and the support rotating shaft is arranged at the free end of the wrist support structure.
The device further comprises a carrier cable clamping seat and a contact wire clamping seat, wherein the carrier cable clamping seat is arranged at the upper end of the supporting rotating shaft, and the contact wire clamping seat is arranged at the lower end of the supporting rotating shaft; the carrier cable is arranged on the carrier cable clamping seat, and the contact line is arranged on the contact line clamping seat.
Furthermore, the first force mechanism adopts a first balance weight, the second force mechanism adopts a second balance weight, the weight provided by the first balance weight acts on one end of the carrier cable and/or the contact wire, and the weight provided by the second balance weight acts on the other end of the carrier cable and/or the contact wire.
The first weight is arranged on the first weight frame, the second weight is arranged on the second weight frame, and the weight of the first weight is greater than that of the second weight.
Further, the lifting device also comprises a lifting motor, wherein the lifting motor is arranged on the first weight frame; the lifting motor is used for driving the first balance weight to ascend or descend so as to drive the catenary and the contact line to drive the cantilever support structure to rotate to a working position, or rotate to a non-working position, or switch between the working position and the non-working position.
Furthermore, a fixed lower anchor device is arranged on the portal frame, a fixed contact net is arranged on the fixed lower anchor device, and when the cantilever support structure rotates to the position above the railway and is located at a working position, the fixed contact net is electrically conducted with a contact wire in the movable contact net through an electric connection plug-in.
By adopting the technical scheme, the utility model at least has the following beneficial effects:
1. in order to solve the problem that a cantilever support structure in the prior art is not rotated in place, the mobile overhead line system adopts a two-step rotating mode, wherein the first step is as follows: lifting or lowering the height of the first balance weight structure by adopting a lifting motor; controlling a catenary and/or a contact line in a movable contact net to move above a rail or to one side of the rail; the gravity-assisted mode is used for moving, so that the control is simpler, more convenient and more flexible. And a second part for further driving the rotation of the cantilever support structure which is not rotated to the side of the railway by the auxiliary rotating mechanism. The problem that the cantilever supporting structure cannot rotate in place when swinging to the side edge of the railway in the prior art is effectively solved.
2. By adopting the mode of meshing the first gear and the second gear, the swing generated by the wrist-arm supporting structure blown by wind can be effectively controlled. The problem of wind swing of the cantilever support structure is not controlled by adopting the mode in the current mobile overhead line system for a while.
3. The technical scheme provided by the utility model can effectively overcome the defect that the catenary and the contact line cannot move to the place in the existing mobile contact network, and has the advantages of lower cost, more reliable operation, less weather influence and simpler maintenance compared with a rigid contact network.
Drawings
Fig. 1 is a schematic view of a cantilever support structure of a conventional mobile overhead line system, which is not rotated in place;
FIG. 2 is a schematic view of a flexible rotary mobile catenary of the present invention;
FIG. 3 is a top view of the flexible rotary moving catenary of FIG. 2 in a working position;
FIG. 4 is a top view of the flexible rotary moving catenary of FIG. 2 in a non-working position;
figure 5 is a schematic view of a single upright with a wrist support structure.
In the figure: 1. a column; 2. a wrist-arm support structure; 3. a catenary cable; 4. a contact line; 5. a first force mechanism; 6. a second force mechanism; 7. a first gear; 8. a second gear; 9. rotating the motor; 10. a position sensor; 11. rotating the bracket; 12. a position detection sheet; 13. a gantry; 14. a support shaft; 15. A carrier cable holder; 16. a contact wire holder; 17. a first weight frame; 18. a second weight frame; 19. Lifting a motor; 20. fixing the lower anchor device; 21. fixing a contact net; 22. a first balance weight; 23. a second balance weight; 24. and rotating the shaft.
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 utility model, as detailed in the appended claims.
As shown in fig. 1, a schematic diagram of a conventional mobile catenary is set such that a cantilever rotates rightwards to drive a contact line and a catenary to move to one side (non-working position) of a rail, because the contact line and the catenary have the effects of removing construction errors and thermal expansion and cold contraction, when a rightmost cantilever a moves to one side of the rail (the cantilever is nearly parallel to the rail to give way to a space above the rail), the rest of the cantilevers (the cantilevers a to d) do not completely rotate to one side of the rail (it can be understood that at least one cantilever in the whole catenary does not completely swing to the rail once, for a long-distance catenary, the swing stops above the rail side, because the rightmost cantilever already swings in place), the offset of the rotating cantilever farther from the right cantilever is smaller, that is, that when the rightmost cantilever stops rotating, the rest of the cantilevers do not rotate in place, especially for a heavy-duty train suitable for a long distance, the contact net is moved about 1600 meters, when the rightmost cantilever stops rotating after being in place, other cantilevers far away from the right-end cantilever are still in a state of not rotating in place, even are laterally above a rail, and therefore loading and unloading operations of other goods such as a large goods yard and a container can be influenced.
As shown in fig. 2, fig. 3, fig. 4 and fig. 5, the present embodiment provides a large cargo yard flexible gravity compensation type mobile catenary, where the mobile catenary includes a plurality of columns 1, a cantilever support structure 2, a catenary 3, a contact line 4, a first force mechanism 5 and a second force mechanism 6; wherein
The carrier cable 3 and the contact line 4 are arranged on the cantilever support structure 2, the cantilever support structure 2 is correspondingly arranged on the upright post 1 through a rotating shaft 24, and the cantilever support structure 2 can rotate on the upright post 1; the action force provided by the first action force mechanism 5 acts on one end of the messenger wire 3 and/or the contact wire 4, and the action force provided by the second action force mechanism 6 acts on the other end of the messenger wire 3 and/or the contact wire 4; the first force mechanism 5 and the second force mechanism 6 interact with each other to drive the catenary 3 and the contact net to move so as to drive the direct structure of the cantilever to switch between a working position and a non-working position;
as shown in fig. 5, an auxiliary rotating mechanism for assisting the rotation of the wrist-arm supporting structure 2 is further provided in the present embodiment, and includes a first gear 7, a second gear 8, a rotating motor 9, and a position sensor 10; wherein said first gear 7 is arranged at an extended end of the rotation shaft 24, said second gear 8 is arranged on an output shaft of the rotation motor 9, said second gear 8 is capable of meshing with said first gear 7, and said position sensor 10 is adapted to detect whether the cantilever support 2 is in a railway side inoperative position.
As a preferred embodiment, the present embodiment further includes a rotating bracket 11, the rotating bracket 11 is mounted on the upright post 1, and the rotating bracket 11 can drive the rotating motor 9 to rotate so that the second gear 8 is meshed with the first gear 7. The rotation shaft 24 of the wrist-arm supporting structure 2 is provided with a position detecting piece 12, and the position sensor 10 is used for detecting the position of the position detecting piece 12 to control the motor to be activated or stopped.
As a preferred embodiment, the present embodiment further includes a gantry 13, and the gantry 13 is disposed at both ends of the moving catenary.
As a preferred embodiment, the present embodiment further comprises a support rotation shaft 14, and the support rotation shaft 14 is disposed at the free end of the wrist support structure 2.
As shown in fig. 5, as a preferred embodiment, the present embodiment further includes a catenary wire holder 15 and a contact wire holder 16, where the catenary wire holder 15 is installed at the upper end of the supporting spindle 14, and the contact wire holder 16 is installed at the lower end of the supporting spindle 14; the carrier cable 3 is arranged on a carrier cable holder 15, and the contact wire 4 is arranged on a contact wire holder 16.
As shown in fig. 2 to 4, as a preferred embodiment, in this embodiment, the first force application mechanism 5 is a first weight, and the second force application mechanism 6 is a second weight, the first weight providing the weight to act on one end of the messenger wire 3 and/or the contact wire 4, and the second weight providing the weight to act on the other end of the messenger wire 3 and/or the contact wire 4.
As a preferable embodiment, the present embodiment further includes a first weight frame 17 and a second weight frame 18, the first weight 22 is mounted on the first weight frame 17, the second weight 23 is mounted on the second weight frame 18, and the weight of the first weight 22 is greater than the weight of the second weight 23.
As a preferred embodiment, the present embodiment further includes a pulling motor 19, wherein the pulling motor 19 is disposed on the first weight frame 17; the lifting motor 19 is used for driving the first balance weight to ascend or descend so as to drive the catenary cable 3 and the contact line 4 to drive the cantilever support structure 2 to rotate to a working position (shown as a working position schematic diagram in fig. 3), or to rotate to a non-working position (shown as a non-working position schematic diagram in fig. 4), or to switch between the working position and the non-working position.
As a preferred embodiment, in this embodiment, the gantry 13 is provided with a fixed lower anchor device 20, the fixed lower anchor device 20 is provided with a fixed overhead line system 21, and when the cantilever support structure 2 is rotated above the railway and located at the working position, the fixed overhead line system 21 is electrically conducted with the contact line 4 in the mobile overhead line system through an electrical connection plug.
The working principle of the embodiment is as follows: initially the cantilever support structure 2 is positioned above the railway, and at this point the pantograph of the freight train is raised to enable electricity to be drawn from the contact line 4, and the freight train can be moved into and out of the freight handling yard.
When a freight train needs to be loaded, unloaded or overhauled, the cantilever support structure 2 above the railway needs to be rotated to the side of the railway, loading and unloading equipment such as a gantry crane and a forklift is usually adopted for loading and unloading goods, and if the cantilever support structure 2 cannot be completely swung out of the railway, the safety of the loading and unloading operation is affected.
Therefore, in this embodiment, in order to solve the problem that the rotation of the cantilever support structure 2 is not in place in the prior art, the mobile catenary of the utility model adopts a two-step rotation manner, wherein the first step is as follows: lifting or lowering the height of the first balance weight structure by using a lifting motor 19; controlling a catenary cable 3 and/or a contact line 4 in a mobile contact network to move to one side of a rail; at this time, the plurality of the cantilever support structures 2 are not completely rotated out of the upper part of the railway, and the cantilever support structures 2 which are not rotated to the side of the railway are further driven to rotate by the auxiliary rotating mechanism. The rotating bracket 11 in the auxiliary rotating mechanism on the upright post 1 drives the rotating motor 9 to rotate so that the second gear 8 is meshed with the first gear 7. Then, the rotation electric actuator drives the rotation shafts 24 on the respective cantilever support structures 2 to rotate, so that the cantilever support structures 2 are driven to drive the carrier cable 3 and the contact wire 4 to further rotate towards the side edge of the railway; the problem that the cantilever supporting structure 2 cannot rotate in place when swinging to the side edge of the railway in the prior art is effectively solved. It should be added that the rotating bracket 11 can be rotatably mounted on the upright post through a rotating member (not shown in the figures), an electric push rod (not shown in the figures) can be arranged on the rotating bracket 11 to push the rotating bracket 11 to rotate through the electric push rod so as to enable the first gear and the second gear to be meshed, and the electric push rod can also be used to pull the rotating bracket 11 so as to enable the first gear and the second gear to be separated.
The rotation shaft 24 drives the position detecting piece 12 to follow up when rotating, and when the wrist supporting structure 2 is rotated to work, the position detecting piece 12 is detected by the position sensor 10, and at this time, the rotation motor 9 stops rotating. As shown in fig. 5, the position detecting piece 12 is rotated along with the rotating shaft 24 (the arrow at the rotating shaft 24 in fig. 5 indicates that the position detecting piece is rotated to the non-working position), and when the position a in the position detecting piece 12 is rotated to the position a', the position sensor 10 detects the position detecting piece 12, which indicates that the wrist-arm supporting structure 2 is rotated to the non-working position and the rotation motor 9 can stop rotating.
By adopting the mode of gear engagement in the non-working position, the first gear 7 and the second gear 8 are engaged in the non-working position, so that the swinging phenomenon caused by the wind blowing influence of the wrist arm supporting structure 2 can be effectively controlled. The movable contact net adopts the following driving mode in the process of rotating from a non-working position to a working position: firstly, a rotating support 11 in an auxiliary rotating mechanism on the upright post 1 drives a rotating motor 9 to rotate and move, so that a first gear 7 and a second gear 8 are separated, a lifting motor 19 controls a first balance weight to descend, a second balance weight is pulled to ascend, and the process drives a catenary 3 and a contact wire 4 to rotate to a working position above a railway. Because the pantograph of the freight train has the power taking width, when all the cantilever support structures 2 are above the railway, the catenary 3 can be powered by the pantograph.
Of course, when the wrist support structure 2 is in the working position, in order to prevent the wrist support structure 2 from generating the wind swing phenomenon, the rotating bracket 11 may be rotated, and the two gears may be engaged to control the swing phenomenon of the wrist support structure 2.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (10)
1. Flexible gravity compensation formula of large-scale goods yard removes contact net, its characterized in that: the movable contact net comprises a plurality of stand columns, a cantilever support structure, a carrier cable, a contact line, a first force mechanism and a second force mechanism; wherein
The catenary and the contact line are arranged on the cantilever supporting structure, the cantilever supporting structure is correspondingly arranged on the upright post through a rotating shaft respectively, and the cantilever supporting structure can rotate on the upright post; the acting force provided by the first acting force mechanism acts on one end of the catenary and/or the contact wire, and the acting force provided by the second acting force mechanism acts on the other end of the catenary and/or the contact wire; the first force mechanism and the second force mechanism interact with each other to drive the carrier cable and the contact net to move so as to drive the cantilever direct structure to switch between a working position and a non-working position;
the auxiliary rotating mechanism is used for assisting the rotation of the cantilever supporting structure and comprises a first gear, a second gear, a rotating motor and a position sensor; the first gear is arranged at the extending end of the rotating shaft, the second gear is arranged on an output shaft of the rotating motor and can be meshed with the first gear, and the position sensor is used for detecting whether the cantilever supporting structure is located at a railway side non-working position or not.
2. The large yard flexible gravity compensated mobile catenary of claim 1, further comprising: the rotary support is installed on the stand column and can drive the rotary motor to rotate so that the second gear is meshed with the first gear.
3. The large yard flexible gravity compensated mobile catenary of claim 2, further comprising: and a position detection sheet is arranged on a rotating shaft of the wrist arm supporting structure, and the position sensor is used for detecting the position of the position detection sheet so as to control the motor to actuate or stop.
4. The large yard flexible gravity compensated mobile catenary of claim 3, further comprising: still include the portal, the portal setting is at the both ends of removing the contact net.
5. The large yard flexible gravity compensated mobile catenary as claimed in any one of claims 1 to 4, wherein: the wrist support structure further comprises a support rotating shaft, and the support rotating shaft is arranged at the free end of the wrist support structure.
6. The large yard flexible gravity compensated mobile catenary of claim 5, further comprising: the device also comprises a carrier cable clamping seat and a contact wire clamping seat, wherein the carrier cable clamping seat is arranged at the upper end of the supporting rotating shaft, and the contact wire clamping seat is arranged at the lower end of the supporting rotating shaft;
the carrier cable is arranged on the carrier cable clamping seat, and the contact line is arranged on the contact line clamping seat.
7. The large yard flexible gravity compensated mobile catenary of claim 6, further comprising: the first force mechanism adopts a first balance weight, the second force mechanism adopts a second balance weight, the weight provided by the first balance weight acts on one end of the carrier cable and/or the contact wire, and the weight provided by the second balance weight acts on the other end of the carrier cable and/or the contact wire.
8. The large yard flexible gravity compensated mobile catenary of claim 7, further comprising: the first balance weight is arranged on the first balance weight frame, the second balance weight is arranged on the second balance weight frame, and the weight of the first balance weight is larger than that of the second balance weight.
9. The large yard flexible gravity compensation type mobile overhead line system of claim 8, wherein: the lifting motor is arranged on the first weight frame; the lifting motor is used for driving the first balance weight to ascend or descend so as to drive the catenary and the contact line to drive the cantilever support structure to rotate to a working position, or rotate to a non-working position, or switch between the working position and the non-working position.
10. The large yard flexible gravity compensated mobile catenary of claim 4, further comprising: the cantilever supporting structure is characterized in that a fixed lower anchor device is arranged on the portal frame, a fixed contact net is arranged on the fixed lower anchor device, and when the cantilever supporting structure rotates to the position above the railway and is located at a working position, the fixed contact net is electrically conducted with a contact wire in the movable contact net through an electric connection plug-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123346934.5U CN216508001U (en) | 2021-12-28 | 2021-12-28 | Flexible gravity compensation type movable contact net for large goods yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123346934.5U CN216508001U (en) | 2021-12-28 | 2021-12-28 | Flexible gravity compensation type movable contact net for large goods yard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216508001U true CN216508001U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123346934.5U Active CN216508001U (en) | 2021-12-28 | 2021-12-28 | Flexible gravity compensation type movable contact net for large goods yard |
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| Country | Link |
|---|---|
| CN (1) | CN216508001U (en) |
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2021
- 2021-12-28 CN CN202123346934.5U patent/CN216508001U/en active Active
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