CN220973974U - Combined train ground electrified automatic passing neutral section device suitable for marshalling mode of n+m - Google Patents
Combined train ground electrified automatic passing neutral section device suitable for marshalling mode of n+m Download PDFInfo
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- CN220973974U CN220973974U CN202322459233.5U CN202322459233U CN220973974U CN 220973974 U CN220973974 U CN 220973974U CN 202322459233 U CN202322459233 U CN 202322459233U CN 220973974 U CN220973974 U CN 220973974U
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- contact net
- locomotive
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 28
- 230000003137 locomotive effect Effects 0.000 claims abstract description 90
- 238000005191 phase separation Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model provides a combined train ground electrified automatic passing neutral section device suitable for a marshalling mode of n+m, which belongs to the technical field of traction power supply of railway locomotives, wherein a first fracture and a second fracture are arranged on a contact network, a first contact network point and a third contact network point are respectively arranged on the outer sides of the first fracture and the second fracture, and a second contact network point is arranged between the first fracture and the second fracture; the distance between the pantograph of the locomotive I and the pantograph of the locomotive m is L, the locomotive I is the first locomotive arranged at the locomotive head position of the train, the locomotive m is the last locomotive on the train, and the locomotive m is arranged at the middle position or the tail position of the train; l < L2, L2 refers to the distance between the first fracture and the second fracture. The utility model changes the line of the ground electrified automatic passing neutral section device, reforms the contact net structure of the ground electrified automatic passing neutral section device, and is matched with the line train position recognition device to realize the grouping mode of the traction trains of a plurality of groups of combined locomotives, so that the contact net can meet the operation of trains with ten thousand tons or more tonnage.
Description
Technical Field
The utility model belongs to the technical field of traction power supply of railway locomotives, relates to the locomotive power supply and distribution technology, and particularly relates to a ground electrified automatic passing neutral section device of a combined train, which is suitable for a grouping mode of n+m.
Background
In the long-distance running process of the train, the overhead lines are powered by different power substations along the line, the current phase between each two adjacent power substations is different, a section of no-electricity area is needed to be arranged at the power supply junction of the overhead lines of the two adjacent power substations, the no-electricity area is called a phase separation area, and the process of passing a locomotive through the phase separation area is called passing phase separation.
The neutral section of the overhead contact system is controlled to be switched from one phase power supply to another phase power supply when the locomotive passes through the neutral section, namely the conversion from the phase A power supply to the phase B power supply or the conversion from the phase B power supply to the phase A power supply is finished, namely the locomotive passes through the neutral section in a live mode, but the locomotive at the locomotive head position of the train and the last locomotive on the train are easy to generate arc pulling when not descending the arc passing through the neutral section, so that serious accidents of short circuit and burning of the overhead contact system are caused, and therefore, the conventional overhead contact system cannot meet the operation of the train with the tonnage of ten thousand tons or higher.
Disclosure of utility model
Aiming at the problems that the locomotive at the locomotive head position of the train and the last locomotive on the train cannot drop to pass through the split-phase area and serious accidents of arc discharge, two-phase short circuit and burning out of the contact net occur in the contact net, the utility model provides the combined train ground electrified automatic passing split-phase device suitable for the marshalling mode of n+m.
The utility model changes the contact net structure of the ground electrified automatic passing neutral section device, and is matched with the line train position recognition device to realize the grouping modes of a plurality of groups of combined locomotive traction trains, such as 1+0, 2+0, 3+0, 1+1, 2+2 … … n+m and other grouping modes, so that the contact net can meet the operation of trains with ten thousand tons or more tonnage.
The technical scheme of the utility model is as follows:
the ground electrified automatic passing neutral section device suitable for the combined train with the grouping mode of n+m comprises a contact net, wherein a first fracture and a second fracture are arranged on the contact net, and a second mesh point on the contact net is arranged between the first fracture and the second fracture;
The distance between the pantograph of the locomotive I and the pantograph of the locomotive m is L, the locomotive I is the first locomotive arranged at the locomotive head position of the train, the locomotive m is the last locomotive on the train, and the locomotive m is arranged at the middle position or the tail position of the train; l is less than L2, and L2 is the distance between the first fracture and the second fracture.
Further defined, the distance between the first fracture and the second mesh point on the contact net is L1, where l1=l.
Further defined, the second contact network point is arranged at a position close to the second fracture.
Further defined, the combined train ground electrification automatic passing neutral section device suitable for the grouping mode of n+m further comprises a first contact net point and a third contact net point, wherein the first contact net point and the third contact net point are respectively arranged on two opposite sides of the second contact net point, and the distance between the first contact net point and the third contact net point is larger than L2.
Further defined, the first contact net point is arranged at a position close to the first fracture and far from the second contact net point, and the third contact net point is arranged at a position close to the second fracture and far from the second contact net point.
Further defined, the combined train ground electrified automatic neutral section passing device suitable for the grouping mode of n+m further comprises a contact net feeder I, a contact net feeder II and a contact net feeder III, wherein the contact net feeder I, the contact net feeder II and the contact net feeder III are all electrically connected with the contact net.
Compared with the prior art, the utility model has the beneficial effects that:
1. The utility model is suitable for a combined train ground electrified automatic passing neutral section device with a grouping mode of n+m, and by setting L < L2, namely the distance between a pantograph of a locomotive I and a pantograph of the locomotive m is smaller than the distance between a fracture I and a fracture II, the locomotive m can enter a neutral section when the locomotive I passes through a switching point (contacts with a net site II), so that the locomotive I and the locomotive m are always connected with the same phase electricity, and the conditions of arc discharge, short circuit and burning out of a contact net are avoided. The utility model changes the contact net structure of the ground electrified automatic passing neutral section device, and is matched with the line train position recognition device to realize the grouping modes of a plurality of groups of combined locomotive traction trains, such as 1+0, 2+0, 3+0, 1+1, 2+2 … … n+m and other grouping modes, so that the contact net can meet the operation of trains with ten thousand tons or more tonnage.
2. In the utility model, the distance between the first fracture 4 and the second contact network point J21 is L1, and L1=L, so that when the first locomotive passes through the switching point (the second contact network point), the first locomotive m just passes through the first fracture, enters the phase separation area, and the first locomotive and the second locomotive m are simultaneously connected with B phase electricity.
Drawings
FIG. 1 is a schematic diagram of a combined train ground electrification auto-passing neutral section device suitable for a consist mode of n+m in accordance with the present utility model;
The device comprises a first contact net feeder, a second contact net feeder, a third contact net feeder, a first 4-fracture, a second 5-fracture, a second 6-contact net, a first 7-locomotive, a first 8-locomotive m, a first J11-contact net point, a second J21-contact net point and a third J31-contact net point.
Detailed Description
The technical scheme of the present utility model will be further explained with reference to the drawings and examples, but the present utility model is not limited to the embodiments described below.
Examples
Referring to fig. 1, the combined train ground electrified automatic passing neutral section device in the embodiment 1 is applicable to a grouping mode of n+m, and comprises a contact net 6, wherein a first fracture 4 and a second fracture 5 are arranged on the contact net 6, a second contact net point J21 is arranged between the first fracture 4 and the second fracture 5, and the second contact net point J21 is a conversion point; specifically, the area in front of the first fracture 4 is an A-phase electric area, the area between the first fracture 4 and the second fracture 5 is a phase separation area, and the area behind the second fracture 5 is a B-phase electric area;
The distance between the pantograph of the locomotive I7 and the pantograph of the locomotive M8 is L, the locomotive I7 refers to the first locomotive arranged at the locomotive head position of the train, the locomotive M8 refers to the last locomotive on the train, and the locomotive M8 is arranged at the middle position or the tail position of the train; l < L2, L2 means the distance between the first fracture 4 and the second fracture 5. The arrangement can ensure that when the locomotive I7 runs to the conversion point, the locomotive m8 runs into the phase separation area or the locomotive m8 just passes through the fracture I4, so that after the locomotive I7 is converted into B-phase electricity, the locomotive m8 can be converted into B-phase electricity at the same time, the locomotive I7 and the locomotive m8 are ensured to be always connected with the same-phase electricity, and the situations of short circuit and burning of a contact net are avoided.
Specifically, locomotive m8 is the last locomotive on the train, except the locomotive at the locomotive head, i.e., locomotive m8 is located in the middle or at the tail of the train.
The distance between the first fracture 4 and the two J21 points on the contact network is L1, L1=L, so that the arrangement can ensure that the locomotive one 7 just passes through the first fracture 4 when passing through the switching point, and the locomotive one 7 and the locomotive m8 are simultaneously switched from the phase A electricity to the phase B electricity.
The second contact net point J21 is arranged at a position close to the second fracture 5, and preferably, the position of the second contact net point J21 is infinitely close to the second fracture 5 and does not coincide with the second fracture 5.
The ground electrification automatic passing neutral section device suitable for the combined train with the grouping mode of n+m further comprises a first contact net point J11 and a third contact net point J31, wherein the first contact net point J11 and the third contact net point J31 are respectively arranged on two opposite sides of a second contact net point J21, and the distance between the first contact net point J11 and the third contact net point J31 is larger than L2. The arrangement can ensure that the locomotive one 7 and the locomotive m8 are electrified when entering the phase separation area, so that the locomotive one 7 and the locomotive m8 are electrified to work, and the locomotive is ensured to work continuously.
The first contact net point J11 is arranged at a position close to the first fracture 4 and far from the second contact net point J21, and the third contact net point J31 is arranged at a position close to the second fracture 5 and far from the second contact net point J21.
The ground electrified automatic neutral section passing device for the combined train with the grouping mode of n+m further comprises a first contact net feeder 1, a second contact net feeder 2 and a third contact net feeder 3, wherein the first contact net feeder 1, the second contact net feeder 2 and the third contact net feeder 3 are electrically connected with the contact net 6.
The embodiment is suitable for the combined train ground electrified automatic passing neutral section device with the grouping mode of n+m, and the working process is as follows: when the locomotive I7 passes through the contact net upper net point J11, the contact net feeder 1 and the contact net feeder 2 are conducted, phase A electricity is conducted to the split-phase area, when the locomotive I7 passes through the contact net upper net point J21, the contact net feeder 1 and the contact net feeder 2 are disconnected, the contact net feeder 2 and the contact net feeder 3 are conducted, namely, the phase A electricity of the split-phase area is disconnected, phase B electricity is conducted to the split-phase area, meanwhile, when the locomotive I7 passes through the contact net upper net point J21, the locomotive m8 just passes through the fracture I4, at the moment, the locomotive I7 and the locomotive m8 are simultaneously connected with the phase B electricity, and when the tail part of a train passes through the contact net upper net point J31, the contact net feeder 2 and the contact net feeder 3 are disconnected, so that the split-phase area is restored to a non-electricity state, and running of other trains is not affected. It should be noted that this embodiment is applicable to locomotive one and locomotive m being connected, both of which cannot be simultaneously charged out of phase.
The grouping mode of the present utility model is n+m, where n is the number of locomotives disposed at the locomotive position of the train, and m is the number of locomotives disposed at other positions except the locomotive position, for example: the number of locomotives disposed at a mid-train position or a tail-train position or the sum of the number of locomotives disposed at the mid-train position and the tail-train position.
Claims (6)
1. The combined train ground electrified automatic passing neutral section device suitable for the marshalling mode is n+m, and is characterized by comprising a contact net (6), wherein a first fracture (4) and a second fracture (5) are arranged on the contact net (6), and a second contact net point (J21) is arranged between the first fracture (4) and the second fracture (5);
The distance between the pantograph of the locomotive I (7) and the pantograph of the locomotive M (8) is L, the locomotive I (7) is the first locomotive arranged at the train head position, the locomotive M (8) is the last locomotive on the train, and the locomotive M (8) is arranged at the train middle position or the train tail position; l < L2, wherein L2 is the distance from the first fracture (4) to the second fracture (5).
2. The combined train ground live automatic passing neutral section device for consist n+m as claimed in claim 1, wherein the distance from the first break (4) to the second contact network point (J21) is L1, and l1=l.
3. The ground electrification automatic passing neutral section device for a combined train with a grouping mode of n+m as claimed in claim 2, wherein the contact net point two (J21) is arranged at a position close to the fracture two (5).
4. The automatic ground electrification passing neutral section device for a combined train with a grouping mode of n+m as claimed in claim 3, wherein the automatic ground electrification passing neutral section device for a combined train with a grouping mode of n+m further comprises a first contact net point (J11) and a third contact net point (J31), wherein the first contact net point (J11) and the third contact net point (J31) are respectively arranged on two opposite sides of a second contact net point (J21), and the distance between the first contact net point (J11) and the third contact net point (J31) is larger than L2.
5. The automatic ground electrification passing phase separation device for a combined train with a grouping mode of n+m according to claim 4, wherein the first contact net point (J11) is arranged at a position close to the first fracture (4) and far from the second contact net point (J21), and the third contact net point (J31) is arranged at a position close to the second fracture (5) and far from the second contact net point (J21).
6. The combined train ground live automatic passing neutral section device suitable for the grouping mode of n+m as claimed in claim 5, further comprising a first contact net feeder (1), a second contact net feeder (2) and a third contact net feeder (3), wherein the first contact net feeder (1), the second contact net feeder (2) and the third contact net feeder (3) are all electrically connected with the contact net (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322459233.5U CN220973974U (en) | 2023-09-11 | 2023-09-11 | Combined train ground electrified automatic passing neutral section device suitable for marshalling mode of n+m |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322459233.5U CN220973974U (en) | 2023-09-11 | 2023-09-11 | Combined train ground electrified automatic passing neutral section device suitable for marshalling mode of n+m |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220973974U true CN220973974U (en) | 2024-05-17 |
Family
ID=91035867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322459233.5U Active CN220973974U (en) | 2023-09-11 | 2023-09-11 | Combined train ground electrified automatic passing neutral section device suitable for marshalling mode of n+m |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220973974U (en) |
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2023
- 2023-09-11 CN CN202322459233.5U patent/CN220973974U/en active Active
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