CN2548872Y - Suspension cable structure of electic railway contact net in tunnel - Google Patents
Suspension cable structure of electic railway contact net in tunnel Download PDFInfo
- Publication number
- CN2548872Y CN2548872Y CN 02222686 CN02222686U CN2548872Y CN 2548872 Y CN2548872 Y CN 2548872Y CN 02222686 CN02222686 CN 02222686 CN 02222686 U CN02222686 U CN 02222686U CN 2548872 Y CN2548872 Y CN 2548872Y
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- CN
- China
- Prior art keywords
- tunnel
- pulley
- insulator
- contact net
- catenary
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Abstract
The utility model relates to a suspension structure of a bearing cable in a tunnel of an electric railway contact net, which is especially suitable for the use of suspending a bearing cable of an electric tunnel contact net and belongs to the field of railway devices. The upper end and the lower end of an insulator are provided with connecting holes, and the lower end of the insulator is connected with a fixed pulley through a movable connection mode. A bracket of the fixed pulley is fixed with three shafts which are respectively sheathed with pulleys, wherein two pulley shafts are mutually parallel and have an interval gap, the other pulley shaft is mutually vertical to other two pulley shafts, and gaps are remained among the three pulleys. The diameter of the bearing cable is matched with the dimension of the gaps, and each of the pulley forms a columnar shape. A connecting hole at the upper end of the insulator is connected with the inner wall of the tunnel through an anchor bolt, and the height of the insulator is given according to the electriferous voltage value.
Description
Technical field: the utility model relates to catenary suspended structure in a kind of electrification contact network tunnel, is specially adapted to the tunnel electrified contacting nets and hangs the catenary use, belongs to the railway equipment field.
Background technology: the catenary in the traditional railway electrified contacting nets tunnel adopts behind the cast-in fixing bolt of line of centers both sides, top, tunnel, and by the overhead contact line with catenary formula that two groups of suspension type insulation regulating plates constitute, its shortcoming is that the requirement tunnel has certain free height.But because historical reasons, free height is all lower in some railway tunnel of building in early days, in the electrified railway remodelling work progress, just can't adopt traditional chain suspension type catenary suspended structure, can only use the tramway type suspension equip ment structure, when electric locomotive moves, this tramway type suspension equip ment catenary structure can not well obtain electric current, causes producing a large amount of off-line arcings, disturbs radiocommunication, reduce contact wire service life, increase operating cost.
Summary of the invention: the purpose of this utility model is to overcome the prior art deficiency, invent and a kind ofly to constitute jointly by insulator and fixed pulley, low to the clearance of tunnel requirement for height, it is good to obtain electric current, catenary suspended structure in the safe and reliable electrification railway contact net tunnel.
Structure of the present utility model is as follows: catenary suspended structure in the electrification railway contact net tunnel, it is characterized in that having connecting bore in the insulator top and bottom, and the insulator lower end connects a fixed pulley by movable connection method; Be fixed with three axles on the fixed pulley support, be socketed with pulley on the every axle, wherein be parallel to each other between the axle of two pulleys and at interval space arranged, mutual vertical between the axle of another pulley and the axle of other two pulleys, leave the space between three pulleys; Catenary diameter and void size are complementary, and pulley is cylindrical; Insulator upper end connecting bore is connected with the tunnel inwall by crab-bolt; The insulator height is set according to the electrified voltage value.
During use, by punching at the tunnel vault, pouring into or use the chemical adhesive mode with cement mortar, in tunnel inwall desired location pre-buried 2-4 root crab-bolt (1), insulator (2) upper end connecting bore (21) inserts crab-bolt (1) back and fixes with nut, insulator (2) lower end connecting bore (22) passes through bolted connection with fixed pulley (3), and (3) three pulleys of fixed pulley are worn catenary (39) between the common space (38) that constitutes.Crab-bolt (1) plays fixed insulation (2), and insulator (2) separates charged part and the earth, and bears radial weight and horizontal force on the catenary, and fixed pulley (3) can move catenary on request.Because insulator (2) highly is to be determined by the electrified railway magnitude of voltage, fixed pulley (3) is different from conventional fixed pulley, but constitute by three cylindrical pulley (32,33,34), therefore whole fixed pulley (3) highly is significantly less than the fixed pulley of conventional conception, when reducing use, final the utility model suspended structure, can use in the low place of space free height to the requirement of tunnel vault free height.
The catenary suspended structure is compared with prior art overhead contact line with catenary formula suspended structure and is had following advantage in the utility model electrification railway contact net tunnel: reduce the requirement to free height in the tunnel greatly, can in the unsve tunnel of original overhead contact line with catenary formula suspended structure, use, its integral structure is simple, construction install convenience, and can prolong the service life of contact wire, be catenary suspended structure in a kind of electrification railway contact net tunnel of novel practical.
Description of drawings: below in conjunction with accompanying drawing, explain with regard to the utility model structure, protection domain is not limited to embodiment.
Fig. 1 is the structural representation when the catenary suspended structure is used in the utility model electrification railway contact net tunnel.Wherein the shaft centre line of three pulleys at grade, the axle of pulley (35,36) is parallel to each other, and mutually vertical with the axle of pulley (37), the distance of three shaft centre lines also is equal.
Fig. 2 is the structural representation of fixed pulley (3) parts in the catenary suspended structure in the utility model electrification railway contact net tunnel.Wherein the axle of two pulleys (35,36) not at grade, but two axles are parallel to each other, simultaneously with the axle of another pulley (37) between vertical mutually.Pulley (35,36) axle center-point equates to the distance of pulley (37) axle center-point.
Fig. 3 is the structural representation of fixed pulley (3) parts in the catenary suspended structure in the utility model electrification railway contact net tunnel.Wherein the shaft centre line of three pulleys not at grade, the axle of pulley (35,36) is parallel to each other, and is mutually vertical with the axle of pulley (37), pulley (35,36) axle center-point is unequal to the distance of pulley (a 37) center-point.Pulley (35,36) position is relative with pulley (37) at homonymy or at heteropleural.
The specific embodiment: the electrified railway magnitude of voltage calculates insulator (2) height and makes insulator (2) during by use, wherein there are four upper end connecting bores (21) insulator (2) upper end, insulator (2) lower end has two lower end connecting bores (22), according to the construction requirement position, on tunnel vault inwall, adopt hole knockout cast-in fixing bolt (1), insulator (2) is fixed on the crab-bolt (1), on the slot on insulator (2) lower end and the fixed pulley medium-height trestle (31), tighten nut after being adjusted to the optimum position, allow catenary (39) pass three pulleys (35 in the fixed pulley (3), 36,37) get final product in the space of Gou Chenging (38).
The 1-crab-bolt; The 2-insulator; 21-upper end connecting hole; 22-lower end connecting hole; 3-is surely sliding Wheel; The 31-support; The 32-axle; The 33-axle; The 34-axle; The 35-pulley; The 36-pulley; 37-is sliding Wheel; The 38-space; The 39-carrier cable;
Claims (6)
1, catenary suspended structure in the electrification railway contact net tunnel is characterized in that having connecting bore (4,5) in insulator (2) top and bottom, and insulator (2) lower end connects a fixed pulley (3) by movable connection method.
2, catenary suspended structure in the electrification railway contact net according to claim 1 tunnel, it is characterized in that being fixed with on fixed pulley (3) support (31) three axles (32,33,34), be socketed with a pulley (35,36,37) on the every axle, wherein be parallel to each other between the axle (32,33) of two pulleys (35,36) and at interval space is arranged, vertical mutually between the axle (32,33) of two pulleys of axle (34) and other (35,36) of another pulley (37), leave space (38) between three pulleys (35,36,37).
3, catenary suspended structure in the electrification railway contact net according to claim 1 and 2 tunnel is characterized in that catenary (39) diameter and space (38) size are complementary, and pulley (35,36,37) is cylindrical.
4, catenary suspended structure in the electrification railway contact net according to claim 1 and 2 tunnel is characterized in that insulator (2) upper end connecting bore (21) is connected with the tunnel inwall by crab-bolt (1).
5, catenary suspended structure in the electrification railway contact net according to claim 1 and 2 tunnel is characterized in that insulator (2) height sets according to the electrified voltage value.
6, catenary suspended structure in the electrification railway contact net according to claim 4 tunnel is characterized in that insulator (2) height sets according to the electrified voltage value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222686 CN2548872Y (en) | 2002-05-21 | 2002-05-21 | Suspension cable structure of electic railway contact net in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02222686 CN2548872Y (en) | 2002-05-21 | 2002-05-21 | Suspension cable structure of electic railway contact net in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2548872Y true CN2548872Y (en) | 2003-05-07 |
Family
ID=33700538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02222686 Expired - Fee Related CN2548872Y (en) | 2002-05-21 | 2002-05-21 | Suspension cable structure of electic railway contact net in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2548872Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333949C (en) * | 2003-07-29 | 2007-08-29 | 铁道第一勘察设计院 | Suspension apparatus and method for electric railway rigid contact net |
| CN109720240A (en) * | 2019-03-13 | 2019-05-07 | 中铁高铁电气装备股份有限公司 | A kind of low clearance single-track tunnel carrier cable suspension arrangement |
-
2002
- 2002-05-21 CN CN 02222686 patent/CN2548872Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100333949C (en) * | 2003-07-29 | 2007-08-29 | 铁道第一勘察设计院 | Suspension apparatus and method for electric railway rigid contact net |
| CN109720240A (en) * | 2019-03-13 | 2019-05-07 | 中铁高铁电气装备股份有限公司 | A kind of low clearance single-track tunnel carrier cable suspension arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |