CN112721746A - Integral dropper device suitable for large-carrying-capacity electrified railway contact network system - Google Patents
Integral dropper device suitable for large-carrying-capacity electrified railway contact network system Download PDFInfo
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- CN112721746A CN112721746A CN202110142983.2A CN202110142983A CN112721746A CN 112721746 A CN112721746 A CN 112721746A CN 202110142983 A CN202110142983 A CN 202110142983A CN 112721746 A CN112721746 A CN 112721746A
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- dropper
- integral
- carrying
- current
- wire clamp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
- B60M1/22—Separate lines from which power lines are suspended, e.g. catenary lines, supporting-lines under tension
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention relates to the field of rail transit contact networks, in particular to an integral dropper device suitable for a contact network system of an electrified railway with large current-carrying capacity. The invention adopts an integrated suspension mode, and the contact wires are respectively connected with the two carrier cables through the integrated dropper device, so the structure is simple; the reliable electrical connection between the contact wire of the double-bearing single-guide contact net system and the two carrier cables is ensured, the elastic uniformity of the suspension contact wire is greatly improved by simultaneously connecting the two carrier cables and the bent pipe matched with the clamping wheel, and the reliability of the double-bearing single-guide contact net system is also ensured by adopting the integral dropper.
Description
Technical Field
The invention relates to the field of rail transit contact networks, in particular to an integral dropper device suitable for a contact network system of an electrified railway with large current-carrying capacity.
Background
The electrified railway contact net system is key equipment for ensuring the safe operation of a locomotive, and the integral dropper is one of important components of the contact net system, is arranged between a carrier cable and a contact wire, is used for increasing a contact suspension point, improving the sag and the elastic uniformity of the contact wire, adjusting the structural height of the contact suspension and plays roles in bearing capacity and current carrying. Because the electrified railway is often high in traffic density and large in way line ramp, a contact network system for supplying power to running trains is required to have higher current carrying capacity, and can ensure large current carrying capacity with current of more than 1000A in 20 minutes, and with the high-speed development of the electrified railway in China, aiming at the characteristics of large traffic density in a special high-speed passenger line, large mountain railway ramp, large traction quality of a heavy haul railway, large traction power supply current, difficult maintenance and the like, a double-carrier-cable single-contact-line system is usually adopted to ensure the pantograph dynamic performance and the current carrying capacity of the system. How to suspend the power supply wire and improve the current-taking quality of the pantograph through the integral dropper and simultaneously ensure the elasticity and the uniformity of the integral dropper suspension contact wire so as to improve the dynamic performance of the pantograph-catenary, which are key factors that the integral dropper restricts the matching application of a pantograph-catenary system. Therefore, the whole dropper device suitable for the contact network system of the electrified railway with large current-carrying capacity is needed nowadays, and the elasticity uniformity of the contact network and the current-taking quality of the pantograph are improved on the premise of ensuring the reliability.
Disclosure of Invention
The invention aims to overcome the defect that the existing dropper device in the prior art can not effectively improve the elasticity uniformity of a contact net and the current-taking quality of a pantograph, and provides the integral dropper device suitable for the contact net system of the electrified railway with large current-carrying capacity.
In order to achieve the above purpose, the invention provides the following technical scheme:
the integral dropper device suitable for the electrified railway contact network system with large current-carrying capacity comprises a current-carrying dropper wire and a hanging part connected with the upper end of the current-carrying dropper wire, wherein the hanging part comprises two composite clamping wheels, two bent pipes and a connecting wire clamp; the integral dropper device also comprises a dropper wire clamp (5) connected with the lower end of the current-carrying dropper wire (4);
the two composite clamping wheels are respectively used for installing the integral dropper device on the two carrier cables, the two bent pipes are respectively installed in the two clamping wheels, the two bent pipes are connected with the upper end of the current-carrying dropper wire through connecting wire clamps, and the bending parts of the bent pipes are matched with the clamping wheels;
the dropper wire clamp is used for being connected with one contact wire. The invention adopts an integrated suspension mode, and the contact wires are respectively connected with the two carrier cables through the integrated dropper device, so the structure is simple; the reliable electrical connection between the contact wire of the double-bearing single-guide contact net system and the two carrier cables is ensured, the elastic uniformity of the suspension contact wire is greatly improved by simultaneously connecting the two carrier cables and the bent pipe matched with the clamping wheel, and the reliability of the double-bearing single-guide contact net system is also ensured by adopting the integral dropper.
As a preferable scheme of the invention, the two bent pipes and the two composite clamping wheels are arranged side by side in the transverse direction. The pantograph is arranged in a transverse parallel mode, so that the vibration consistency of the two carrier cables when the pantograph passes through is guaranteed, the elastic uniformity of the contact wires is improved, the dynamic characteristic of pantograph-catenary matching is guaranteed, and the reliability of a contact network system is enhanced.
As a preferable aspect of the present invention, the current-carrying dropper wire is crimped to the connecting wire clamp and the dropper wire clamp, respectively. According to the invention, other structural members are pressed together, so that the integrity of the dropper device is ensured, and the reliability of a contact network system is further ensured.
As a preferable aspect of the present invention, the connecting clamp includes two upper end crimping pipes and one lower end crimping pipe;
the connecting wire clamp is respectively connected with the lower ends of the two bent pipes through the two upper end crimping pipes; the connecting wire clamp is connected with the upper end of the current-carrying dropper through the lower end crimping pipe.
As a preferable scheme of the invention, the connecting wire clamp is a copper alloy structural part.
As a preferable scheme of the invention, the current-carrying dropper line is an integral copper alloy stranded wire, that is, the current-carrying dropper line is an integrally cast copper alloy stranded wire.
As a preferable scheme of the invention, the bent pipe is a copper bent pipe.
As a preferable scheme of the invention, the dropper wire clamp comprises an upper end crimping pipe and a lower end sliding groove;
the hanger wire clamp is connected with the current-carrying hanger wire through the upper end crimping pipe; the lower end sliding groove is matched with a guide rail of the contact line.
As a preferable scheme of the invention, the dropper wire clamp is a copper alloy structural part.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts an integrated suspension mode, and the contact wires are respectively connected with the two carrier cables through the integrated dropper device, so the structure is simple; the reliable electrical connection between the contact wire of the double-bearing single-guide contact net system and the two carrier cables is ensured, the elastic uniformity of the suspension contact wire is greatly improved by simultaneously connecting the two carrier cables and the bent pipe matched with the clamping wheel, and the reliability of the double-bearing single-guide contact net system is also ensured by adopting the integral dropper.
2. The pantograph is arranged in a transverse parallel mode, so that the vibration consistency of the two carrier cables when the pantograph passes through is guaranteed, the elastic uniformity of the contact wires is improved, the dynamic characteristic of pantograph-catenary matching is guaranteed, and the reliability of a contact network system is enhanced.
Drawings
Fig. 1 is a schematic structural diagram of an integral dropper device suitable for a large-ampacity electrified railway contact network system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the effect of the integral dropper device suitable for the contact network system of the electrified railway with large current-carrying capacity according to the embodiment of the invention;
FIG. 3 is a structural diagram of a composite card wheel suitable for an integral dropper device of a contact network system of an electrified railway with large current-carrying capacity according to an embodiment of the invention;
FIG. 4 is a connecting wire clamp structure diagram of the integral dropper device suitable for the contact net system of the electrified railway with large current-carrying capacity according to the embodiment of the invention;
FIG. 5 is a structural diagram of a dropper wire clamp of the integral dropper device suitable for the contact network system of the electrified railway with high current-carrying capacity according to the embodiment of the invention;
the labels in the figure are: the cable clamp comprises a composite clamping wheel 1, a bent pipe 2, a connecting wire clamp 3, a current-carrying dropper wire 4, a dropper wire clamp 5, a carrier wire 6 and a contact wire 7.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Examples
As shown in figure 1, the integral dropper device suitable for the electrified railway contact network system with large current carrying capacity comprises a current carrying dropper wire 4, a hanging part connected with the upper end of the current carrying dropper wire 4 and a dropper wire clamp 5 connected with the lower end of the current carrying dropper wire 4.
The suspension portion comprises two composite clamping wheels 1, two bent pipes 2 and a connecting wire clamp 3. As shown in fig. 2, two composite clamp wheels 1 are respectively installed on two carrier cables 6, two bent pipes 2 are respectively installed in the two clamp wheels 1, the bent pipes 2 are copper bent pipes, and the bending parts of the bent pipes 2 are matched with the clamp wheels 1. The two bent pipes 2 are connected with the upper ends of the current-carrying dropper wires 4 through connecting wire clamps 3. In order to avoid the situation that the weight of the two carrier cables is inconsistent due to the two bent pipes 2, the bent pipes 2 and the composite clamping wheels 1 are transversely arranged side by side, and the composite clamping wheels 1 are structurally shown in figure 3.
As shown in fig. 4, the connecting clamp 3 includes two upper end crimping pipes and one lower end crimping pipe, which are copper alloy structural members; the connecting wire clamp 3 is respectively connected with the lower ends of the two bent pipes 2 through the two upper end crimping pipes; the connecting wire clamp 3 is connected with the upper end of the current-carrying dropper wire 4 through the lower end crimping pipe.
The current-carrying dropper 4 is an integral copper alloy stranded wire, and the lower end of the current-carrying dropper is connected with a contact wire 7 through a dropper wire clamp 5. The upper end and the lower end of the current-carrying dropper wire 4 are respectively connected with the connecting wire clamp 3 and the dropper wire clamp 5 in a compression joint mode through a metal die stamping process.
As shown in fig. 5, the dropper wire clamp 5 comprises an upper end crimping pipe and a lower end chute, and is a copper alloy structural member; the hanger wire clamp 5 is in compression joint with the current-carrying hanger wire 4 through the upper end compression joint pipe; and the lower end sliding groove is matched with the guide rail of the contact line 7, and the dropper wire clamp 5 is connected with the contact line 7 through the sliding groove.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The integral dropper device suitable for the electrified railway contact network system with large current-carrying capacity comprises a current-carrying dropper wire (4) and a hanging part connected with the upper end of the current-carrying dropper wire (4), and is characterized in that the hanging part comprises two composite clamping wheels (1), two bent pipes (2) and a connecting wire clamp (3); the integral dropper device also comprises a dropper wire clamp (5) connected with the lower end of the current-carrying dropper wire (4);
the two composite clamping wheels (1) are respectively used for installing the integral dropper device on the two carrier wires (6), the two bent pipes (2) are respectively installed in the two clamping wheels (1), the two bent pipes (2) are connected with the upper ends of the carrier wires (4) through connecting wire clamps (3), and the bending parts of the bent pipes (2) are matched with the clamping wheels (1);
the dropper wire clamp (5) is used for being connected with one contact wire (7).
2. The integral dropper device suitable for the electrified railway contact net system with high ampacity according to claim 1, wherein the two elbows (2) and the two composite wheels (1) are arranged side by side in the transverse direction.
3. The integral dropper device suitable for the electrified railway contact net system with high ampacity according to claim 1, wherein the current-carrying dropper wires (4) are respectively crimped with the connecting wire clamp (3) and the dropper wire clamp (5).
4. The integral dropper device suitable for the electrified railway contact net system with high ampacity of claim 1, wherein the connecting wire clamp (3) comprises two upper end crimping pipes and one lower end crimping pipe;
the connecting wire clamp (3) is respectively connected with the lower ends of the two bent pipes (2) through the two upper end crimping pipes; the connecting wire clamp (3) is connected with the upper end of the current-carrying dropper wire (4) through the lower end crimping pipe.
5. The integral dropper device suitable for the electrified railway contact net system with high ampacity of claim 1, wherein the connecting wire clamp (3) is a copper alloy structural member.
6. The integral dropper device suitable for the electrified railway contact net system with high current carrying capacity of claim 1, wherein the current carrying dropper wire (4) is an integral copper alloy stranded wire.
7. The integral dropper device suitable for the electrified railway contact network system with high ampacity according to claim 1, wherein the elbow (2) is a copper elbow.
8. The integral dropper device suitable for the electrified railway contact network system with high ampacity of claim 1, wherein the dropper wire clamp (5) comprises an upper end crimping pipe and a lower end chute;
the hanger wire clamp (5) is connected with the current-carrying hanger wire (4) through the upper end crimping pipe; the lower end sliding groove is matched with a guide rail of the contact line (7).
9. The integral dropper device suitable for the electrified railway contact net system with high ampacity of claim 1, wherein the dropper wire clamp (5) is a copper alloy structural member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110142983.2A CN112721746B (en) | 2021-02-02 | 2021-02-02 | Integral dropper device suitable for large-carrying-capacity electrified railway contact network system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110142983.2A CN112721746B (en) | 2021-02-02 | 2021-02-02 | Integral dropper device suitable for large-carrying-capacity electrified railway contact network system |
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| CN112721746A true CN112721746A (en) | 2021-04-30 |
| CN112721746B CN112721746B (en) | 2023-01-20 |
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| CN202110142983.2A Active CN112721746B (en) | 2021-02-02 | 2021-02-02 | Integral dropper device suitable for large-carrying-capacity electrified railway contact network system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352953A (en) * | 2021-06-28 | 2021-09-07 | 北京市中网慧通科技有限公司 | Cross cable isolating device for contact network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113352953A (en) * | 2021-06-28 | 2021-09-07 | 北京市中网慧通科技有限公司 | Cross cable isolating device for contact network |
| CN113352953B (en) * | 2021-06-28 | 2022-06-21 | 北京市中网慧通科技有限公司 | Cross cable isolating device for contact network |
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| Publication number | Publication date |
|---|---|
| CN112721746B (en) | 2023-01-20 |
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