CN201245083Y - Improved structure of insulation anchor overlapping section of electric contact net - Google Patents
Improved structure of insulation anchor overlapping section of electric contact net Download PDFInfo
- Publication number
- CN201245083Y CN201245083Y CNU2008200518218U CN200820051821U CN201245083Y CN 201245083 Y CN201245083 Y CN 201245083Y CN U2008200518218 U CNU2008200518218 U CN U2008200518218U CN 200820051821 U CN200820051821 U CN 200820051821U CN 201245083 Y CN201245083 Y CN 201245083Y
- Authority
- CN
- China
- Prior art keywords
- folder
- electric contact
- notch
- contact system
- insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses an improvement structure of the insulation tension length joint of an electric contact net, comprising a connection clamp, by which a contact line and an insulating rod are connected. The middle part of the connection clamp is provided with a rabbet which faces the joint of the head face of the contact line and the copper rod head face of the insulating rod. The utility model can avoid the fatigue crack at the end of a wire mesh effectively, reduce the damage force caused by the lifting force of a pantograph and bow net vibration in vehicle running process and achieve the aim of eliminating the accident potential at the insulation tension length joint with little reformation cost. The end state of the insulating rod and the contact line can be detected and observed in routing inspection and safety potential can be evaluated and found in time.
Description
Technical field
The utility model relates to the electric contact system technical field of track traffic, particularly a kind of insulated overlap structure of contact system.
Background technology
Contact system is a kind of track top keeps certain distance along track laying and railway tread electrical grid that is suspended on.By the pantograph of battery-driven car group and the moving contact of contact system, electric energy is introduced the battery-driven car group by contact system, driving and traction motor make train operation.Contact system is divided into several segmentations by certain-length along the line, is referred to as the anchor section, and the overhead contact line structure that adjacent two anchor sections are connected mutually is called overlap.
Be the connection structure scheme drawing of insulated overlap in the subway contact system as shown in Figure 1, 2, from connecting clamping structure as can be known, connect the static friction force that the dovetail furrow 14 of folder 11 by special folder mouthful and contact wire 12 produces with bolt pretightening, the tightening force of transmission contact wire under the action of gravity of casting anchor.In case the dovetail furrow 14 of contact wire occurs damaged and further tears, the folder mouth will reduce gradually with the static friction force of the faying face of dovetail furrow, produce disengaging until guaranteeing equilibrium of forces at last.For example, on May 23rd, 2008, line of Guangzhou Underground comes in contact the accident that net insulated wire fracture, operation are interrupted, and confirms that through the scene the insulate metal dovetail furrow end of anchor section is all torn, broken away from connection and causes because insulation anchor section is connected the appearance of folder position with contact wire.
In addition, in the car operation process, whole gauze is in the vertical vibration process.For connecting the folder mode of operation, in the operation process, also there is very big influence in the lifting power of vehicle pantograph simultaneously.As shown in Figure 3, diameter is that the flexible contact wire 12 of 12mm can be considered in certain-length is equicohesive rigid body, the lifting power of vehicle pantograph 15 is 120N, the dovetail furrow of contact wire 12 and insulation rod 13 is by (L=100mm among the figure) in each the 50mm length range that presss from both sides, and additional to bear with A, B point be the moment of flexure of the numerical value change of fulcrum.And in quilt folder scope, the end of contact wire 12 and insulation rod 13 is stressed to be maxim.Along with accumulating over a long period, crackle is torn because of reasons such as fatigue engender in these ends, secondly because connection lead overhangs the existence of power, also can produce certain bending moment to joint face.
In sum, the connection of traditional contact system insulated overlap is clipped in and has following problem in the use:
(1), long-term gripping power produces at the bottom of whole dovetail furrow and tears concentrated stress.
(2), the pantograph lifting power in the operational process and bow net vibrations make the copper rod end section of insulation rod bear maximum pull, long-term use impels its end endurance crack to occur, and then causes tearing.
(3), in case phenomenon occurs tearing, under the effect of contact system tension force, insulation rod will come off very soon.
Summary of the invention
The purpose of this utility model is to provide a kind of connection clamping structure that reduces contact wire is produced destructive force, is convenient to check the abnormal condition of contact wire end simultaneously, eliminates the potential safety hazard of insulated overlap.
The technical scheme that the utility model adopted: a kind of improvement structure of insulated overlap of electric contact system, comprise the folder that is connected that is used to connect contact wire and insulation rod, the middle part of described connection folder offers a notch, and this notch is right against the joint of the copper rod end face of contact wire end face and insulation rod.
The upper edge of above-mentioned notch is a little more than the upper surface of contact wire, and the lower edge of notch flushes with the lower edge that is connected folder.Described notch is arranged on the wherein one or both sides that connect folder.
The friction force of passing for the folder oral instructions that guarantee to connect folder is identical with former connection folder, and the width of above-mentioned notch is 20mm, and the width that connects folder is 120mm.
The utility model has following advantage and beneficial effect with respect to prior art: the utility model is under the prerequisite of the design concept of not destroying existing contact system and structure, can make the copper rod middle part that concentrated stress acts on insulation rod of tearing at the bottom of the dovetail furrow, and the gripping power that connects folder is no longer directly born in its end, avoids occurring endurance crack; On the other hand, reduced to improve the safety factor of the copper rod end of insulation rod because of the lifting power of pantograph in the vehicle operating process and bow net vibrations are created in the destructive force that bear along transversal surface the copper rod end of insulation rod.Thereby utilize less improvement cost to reach the purpose of the accident potential of eliminating insulated overlap,, in time assess and find potential safety hazard by the daily end situation that can directly detect, observe insulation rod and contact wire of patrolling and examining.
Description of drawings
Fig. 1 is the structural representation of the insulated overlap of existing contact system;
Fig. 2 is the lateral plan of Fig. 1;
Fig. 3 is in the car operation process, the scheme drawing that contacts of pantograph and gauze;
Fig. 4 is the structural representation of insulated overlap of the present utility model;
Fig. 5 is the lateral plan of Fig. 4.
The specific embodiment
Analyze at the insulation rod fracture incident that has taken place, recognize the hidden danger that traditional contact system exists, the existing structure that connects folder can't check out whether the gauze end crackle occurred; Should also be noted that simultaneously in tradition to connect in the structure design of folder that in a single day binding bolt unclamps, the dovetail furrow of contact wire and insulation rod does not just allow to re-use.According to above-mentioned force analysis, the utility model has adopted novel connection clamping structure, can check the abnormal condition of finding the gauze end timely, and hidden danger is eliminated in bud.
Shown in Fig. 4,5, the improvement structure of the insulated overlap of electric contact system described in the utility model comprises connecting folder 1, connects folder 1 by mouthful copper rod end clips stressed joint with contact wire 2 and insulation rod 3 of special folder.Wherein, the copper rod end face of insulation rod 3 and the end face of contact wire 2 are close to installation, connect folder 1 by on the contact wire dovetail furrow 4 with its clamping.Especially, offer a notch 5 at the middle part that connects folder 1, this notch 5 is right against the joint of the copper rod end face of contact wire end face and insulation rod.The upper edge of notch 5 is a little more than the upper surface of the copper rod end of contact wire 2 and insulation rod 3, and the lower edge of notch 5 flushes with the lower edge that is connected folder 1, so just can check whether the gauze end crackle occurred by notch.This notch 5 can be arranged on the wherein one or both sides that connect folder 1.
The improvement structure of described connection folder 1 is according to raw MAT'L, former technology, equal strength design-calculated principle, connecting the slot opening D that offers at the folder middle part is 20mm, the friction force of passing for the folder oral instructions that guarantee to connect folder is identical with former connection folder, increased the length L (changing 120mm into) that connects folder from 100mm, thickness and former connection folder identical (26mm) are identical with former connection folder to guarantee the folder mouth pressure.This connection folder can make the copper rod middle part that concentrated stress acts on insulation rod of tearing at the bottom of the dovetail furrow, and the gripping power that connects folder is no longer directly born in its end, and making a concerted effort is zero, avoids occurring endurance crack.On the other hand, the copper rod end face of insulation rod and contact wire end face must be close to during installation, can reduce to improve the safety factor of the copper rod end of insulation rod because of the lifting power of pantograph in the vehicle operating process and bow net vibrations are created in the destructive force that bear along transversal surface the copper rod end of insulation rod.
The technical solution of the utility model can not destroyed the design concept and the structure of existing contact system, is to improve the mounting condition of insulation rod on existing flexible contact system, thereby utilizes less improvement cost to reach the purpose of the accident potential of eliminating insulated overlap.When daily patrolling and examining, can directly detect, observe the end situation of insulation rod and contact wire, in time assess and find potential safety hazard.
Claims (5)
1. the improvement structure of the insulated overlap of an electric contact system, comprise be used to connect contact wire (2) and insulation rod (3) be connected folder (1), it is characterized in that, the middle part of described connection folder offers a notch (5), and this notch is right against the joint of the copper rod end face of contact wire end face and insulation rod.
2. according to the improvement structure of the insulated overlap of the described electric contact system of claim 1, it is characterized in that the upper edge of described notch (5) is a little more than the upper surface of contact wire (2), the lower edge of notch flushes with the lower edge that is connected folder (1).
3. according to the improvement structure of the insulated overlap of the described electric contact system of claim 2, it is characterized in that described notch (5) is arranged on the wherein one or both sides that connect folder.
4. according to the improvement structure of the insulated overlap of the described electric contact system of arbitrary claim in the claim 1 to 3, it is characterized in that the width of described notch (5) is 20mm.
5. according to the improvement structure of the insulated overlap of the described electric contact system of arbitrary claim in the claim 1 to 3, it is characterized in that the width of described connection folder (1) is 120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200518218U CN201245083Y (en) | 2008-08-05 | 2008-08-05 | Improved structure of insulation anchor overlapping section of electric contact net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200518218U CN201245083Y (en) | 2008-08-05 | 2008-08-05 | Improved structure of insulation anchor overlapping section of electric contact net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201245083Y true CN201245083Y (en) | 2009-05-27 |
Family
ID=40728899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200518218U Expired - Lifetime CN201245083Y (en) | 2008-08-05 | 2008-08-05 | Improved structure of insulation anchor overlapping section of electric contact net |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201245083Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3002151A1 (en) * | 2014-10-02 | 2016-04-06 | EM Power Systems B.V. | Isolating mechanical connector for overhead electrical power line, and method for providing the connector in an overhead electrical power line |
-
2008
- 2008-08-05 CN CNU2008200518218U patent/CN201245083Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3002151A1 (en) * | 2014-10-02 | 2016-04-06 | EM Power Systems B.V. | Isolating mechanical connector for overhead electrical power line, and method for providing the connector in an overhead electrical power line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2008027232A3 (en) | Devices, systems, and methods for reinforcing a traffic control assembly | |
| CN201245083Y (en) | Improved structure of insulation anchor overlapping section of electric contact net | |
| CN203727198U (en) | Rigid double-wire contact net | |
| CN103847535A (en) | Rigid double-wire OCS (Overhead Contact System) | |
| CN204915722U (en) | Novel disconnected rail detect device | |
| CN201605101U (en) | Double horizontal guide wheel mechanism | |
| CN206653951U (en) | A kind of new dropper of independent bearing | |
| CN206036128U (en) | Equilibrant UT fastener | |
| CN203243001U (en) | Insulating strain wire clamp | |
| CN206186826U (en) | Hard dropper | |
| CN201901156U (en) | Metro bogie | |
| CN201584701U (en) | Tool for replacing 'V' string insulator of 220kV line in live state | |
| CN200990489Y (en) | Wedge type tension resisting wire clip | |
| CN209896583U (en) | Electric power construction fixing-line device | |
| CN202353155U (en) | Shockproof hammer used for large-section high voltage conductor | |
| CN202573856U (en) | Medium-low speed magnetic levitation-side current collection steel aluminum composite contact rail-end elbow | |
| CN101559729B (en) | Self-tension wind resisting device for electrified railway contact line and using method thereof | |
| CN206908248U (en) | High-tension cable fixing clamper | |
| CN203511325U (en) | Pantograph pan | |
| CN207485471U (en) | A kind of external hanging type pre-buried channel flow | |
| CN204367916U (en) | A kind of elasticity bus duct rigid-flexibility transition device | |
| KR200452645Y1 (en) | Dropper clamp for fixing an electric car line | |
| CN205452985U (en) | Novel cable bearer | |
| CN203157760U (en) | Convenient-to-mount rigid suspension contact net | |
| CN204109815U (en) | A kind of high direct voltage electric driver used on a highway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090527 |