CN2401403Y - L-shaped cantilever type contact net fixing frame used in tunnel - Google Patents
L-shaped cantilever type contact net fixing frame used in tunnel Download PDFInfo
- Publication number
- CN2401403Y CN2401403Y CN 99239552 CN99239552U CN2401403Y CN 2401403 Y CN2401403 Y CN 2401403Y CN 99239552 CN99239552 CN 99239552 CN 99239552 U CN99239552 U CN 99239552U CN 2401403 Y CN2401403 Y CN 2401403Y
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- China
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- fixed support
- firm banking
- clamping plate
- support base
- earrings
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Abstract
The utility model relates to contact net fixing bracket used in an electrization railway tunnel, which is composed of a fixing bracket base, an insulating positioning rod, a catenary, a contact line, etc. The utility model is characterized in that the position relation of the fixing bracket base and the insulating positioning rod are in an L shape, the fixing bracket base and ear rings of a fixing base are connected by bolts, and a rotary ear ring is connected with an ear ring of the fixing base by a pin shaft; a left and a right fixing base clamping plates are fixed to both sides of the rotary ear ring through cylindrical pins and are provided with a notch, and an eccentric bolt passes through the insulating positioning rod and is placed in the notch of the left and the right fixing base clamping plates.
Description
The utility model belongs to contact system fixed support in the electrified railway tunnels.
The contact system fixed support mostly is bow type support in the existing tunnel, as shown in Figure 1.Bow type support is to adopt four base pre-embedded bolt cast to be fixed on to hang the location on the tunnel wall, because bow type support is stressed all bearing on four bolt of lower bases all, and bolt of lower base is to adopt cement casting, pre-buried, when in the tunnel, coming in contact net broken string or pantograph and catenary fault, whole bow type bracket base pre-embedded bolt may be subjected to being drawn out than normal big several times destructive force or occurring becoming flexible, and pre-embedded bolt just can't re-use.This just causes great difficulty to contact system repairing, recovery driving.Near ruined bow type support, there is not pre-buried good standby bolt of lower base, can't reinstall a cover bow type support in the short period of time, even pre-embedded bolt is destroyed, because bow type support is heavy (50 kilograms) comparatively, reinstall very effort, time-consuming, be unfavorable for break service, so that recover driving as early as possible.In addition, because tunnel space restriction, can't found the interim iron tower net that resumes contacts.When the trouble point in the tunnel, particularly in the tunnel of growing up, do not allow to use and fall the scheme that bow passes through and rush to repair.In a single day and in the tunnel, come in contact the net fault, and will seriously upset the driving transport order, have a strong impact on transportation-production, the serious threat traffic safety.
Contact system fixed support (hereinafter to be referred as L bracket) is at the above-mentioned defective that has the existence of bow type support now and a kind of later-model contact system fixed support of design-calculated in the L shaped cantilevered tunnel, and it has mainly done improvement to the existing support bracket fastened mounting means of contact system, the version of base and the material of member.It can be used as the substitute products of bow type support, is used for contact system location or suspension in the tunnel, and the employing L bracket can shorten the set-up time greatly, reduces the transportation breakdown loss, and the contact system that is particularly suitable in the low headroom tunnel is located or suspension.
The purpose of this utility model is realized by following structure: it is made up of fixed support base, insulation locating bar, catenary, contact wire etc.It is characterized in that: the fixed support base is L-shaped with the position relation of insulation locating bar, fixed support base and firm banking earrings are by bolted connection, the rotation earrings links to each other with the firm banking earrings by bearing pin, a left side, right firm banking clamping plate are fixed on the both sides of rotation earrings by straight pin, a left side, on the right firm banking clamping plate notch is arranged, eccentric bolt passes the insulation locating bar and puts into a left side, in the notch on the right firm banking clamping plate, a left side, uniform N is the center of circle with the eccentric bolt on the right firm banking clamping plate, with R is the adjustment hole of radius, and φ 12 bolts pass adjustment hole and insulation locating bar, an insulation locating bar and a left side, right firm banking clamping plate couple together.With anchor ear fastening fixed support base, 3 expansion bolts are installed in fixed support base and anchor ear on the tunnel wall.
When installing, L bracket needs to reach the setting height(from bottom) of determining L bracket at height of contact wire place contact wire apart from the distance of tunnel wall according to the height of contact wire in the tunnel.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is contact system fixed support, the i.e. erection plan of bow type support in the tunnel in the existing tunnel.
Fig. 2 is the erection plan of L shaped contact system fixed support described in the utility model in the tunnel.
Fig. 3 is the support bracket fastened assembling insight structural map of L shaped contact system.
Fig. 4 is the birds-eye view of Fig. 3.
Among Fig. 1,1, insulation locating bar 2, tooth arch 3, bow-shaped support base 4, catenary 5, steady ear 6, contact wire
Among Fig. 2,1, insulation locating bar 4, catenary 5, steady ear 6, contact wire 7, L shaped fixed support base 8, expansion bolt 9, anchor ear 10, eccentric bolt 18, adjustment hole
Among Fig. 3, Fig. 4,1, insulation locating bar 4, catenary 5, steady ear 6, contact wire 7, L shaped fixed support base 8, expansion bolt 9, anchor ear 10, eccentric bolt 11, rotation earrings 12, spring cotter 13, straight pin 14, firm banking earrings 15, right firm banking clamping plate 16, left firm banking clamping plate 17, bearing pin 18, adjustment hole 19, bolt 20, notch
Among Fig. 2, insulation locating bar (1), catenary (4), steady ear (5), contact wire (6) are former bow type accessory bracket, L shaped fixed support base (7), and anchor ear (9) fastening base (7) is fixed on the tunnel wall with expansion bolt (8).
Among Fig. 3, Fig. 4, L bracket base (7) is a cancelled structure, to alleviate base weight.Two firm banking earrings (14) are connected with fixed support base (7) with bolt (19), rotation earrings (11) links to each other with firm banking earrings (14) by bearing pin (17), a left side, right firm banking clamping plate (15), (16) be fixed on the both sides that rotate earrings (11) by straight pin (13), eccentric bolt (10) passes insulation locating bar (1) and puts into a left side, right firm banking clamping plate (15), (16) notch on (20), a left side, right firm banking clamping plate (15), (16) going up uniform 5 is the center of circle with the eccentric bolt, radius is 75 millimeters a adjustment hole (18), and φ 12 bolts (12) pass adjustment hole (18) and insulation locating bar (1), an insulation locating bar (1) and a left side, right firm banking clamping plate (15), (16) couple together.Anchor ear (9) fastening L bracket base (7), 3 expansion bolts (8) are installed in base (7) and anchor ear (9) on the tunnel wall.
This device design is ingenious, and each part dimension compactness, volume be little, can adapt to difform tunnel cross-section.Fixed support base (7), firm banking earrings (14), left and right firm banking clamping plate (15), (16), rotation earrings (11), bearing pin (17) all adopt light-duty, high strength titanium aluminum alloy manufacturing, in light weight, be difficult for corrosion, mechanical characteristics can satisfy that the small curve radius circuit is stressed more to be asked.Insulated part adopts former bow type support insulation rod, is approved product, and electric property and mechanical characteristics meet the requirements.This installs simple installation, and the set-up time is short, only needs with three expansion bolts base to be fixed on the tunnel arch by requirement for height, adjusts slightly to get final product.Because 5 adjustment holes are arranged on left and right firm banking clamping plate, make that the insulation locating bar can eccentric bolt be center of circle swing when mounted, when correct position, with φ 12 bolts the insulation locating bar is fixed on the left and right firm banking clamping plate, plays the effect of regulating insulation locating bar (1) gradient equally.This device can be used for the low headroom tunnel that former bow type support hangs, and can be used for also that contact system horizontally suspends or the high headroom tunnel of V-arrangement when hanging, and just must adopt two these devices of cover respectively catenary and contact wire to be positioned.Insulation locating bar Design of length becomes adjustable, so that adapt to the side gauge requirement in different tunnels.When replacing having bow type support now with L bracket, need only replace with three expansion bolts of L bracket, change the pre-embedded bolt of bow type bracket base in the tunnel and get final product.Because this installs all other parts and is installed in the pantograph top, therefore do not take the finite space in tunnel, improved the out of gauge freight transportation carrying capacity in tunnel.
Claims (3)
1, contact system fixed support in a kind of electrified railway tunnels, be by the fixed support base, the insulation locating bar, catenary, compositions such as contact wire, its spy is being: the fixed support base is L-shaped with the position relation of insulation locating bar, fixed support base and firm banking earrings are by bolted connection, the rotation earrings links to each other with the firm banking earrings by bearing pin, a left side, right firm banking clamping plate are fixed on the both sides of rotation earrings by straight pin, a left side, on the right firm banking clamping plate notch is arranged, eccentric bolt passes the insulation locating bar and puts into a left side, in the notch on the right firm banking clamping plate, a left side, uniform N is the center of circle with the eccentric bolt on the right firm banking clamping plate, with R is the adjustment hole of radius, φ 12 bolts pass adjustment hole and insulation locating bar, an insulation locating bar and a left side, right firm banking clamping plate couple together, with anchor ear fastening fixed support base, 3 expansion bolts are installed in fixed support base and anchor ear on the tunnel wall.
2, contact system fixed support as claimed in claim 1 is characterized in that: the fixed support base is a cancelled structure.
3, contact system fixed support as claimed in claim 1 is characterized in that: fixed support base firm banking earrings, left and right firm banking clamping plate, rotation earrings, bearing pin are made by the high strength titanium aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239552 CN2401403Y (en) | 1999-09-07 | 1999-09-07 | L-shaped cantilever type contact net fixing frame used in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239552 CN2401403Y (en) | 1999-09-07 | 1999-09-07 | L-shaped cantilever type contact net fixing frame used in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2401403Y true CN2401403Y (en) | 2000-10-18 |
Family
ID=34026787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99239552 Expired - Fee Related CN2401403Y (en) | 1999-09-07 | 1999-09-07 | L-shaped cantilever type contact net fixing frame used in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2401403Y (en) |
Cited By (4)
| 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 |
| CN107351729A (en) * | 2017-08-24 | 2017-11-17 | 四川省泰禾机械有限公司 | It is applied to the rigid arcuate support registration clamp of low clearance in a kind of tunnel |
| CN110789404A (en) * | 2019-10-30 | 2020-02-14 | 徐州中能电力科技有限公司 | Supporting mechanism of electrified railway contact net |
| CN112406633A (en) * | 2020-12-08 | 2021-02-26 | 宝鸡保德利电气设备有限责任公司 | Positioning device for cantilever type light contact net suspension system |
-
1999
- 1999-09-07 CN CN 99239552 patent/CN2401403Y/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN107351729A (en) * | 2017-08-24 | 2017-11-17 | 四川省泰禾机械有限公司 | It is applied to the rigid arcuate support registration clamp of low clearance in a kind of tunnel |
| CN110789404A (en) * | 2019-10-30 | 2020-02-14 | 徐州中能电力科技有限公司 | Supporting mechanism of electrified railway contact net |
| CN112406633A (en) * | 2020-12-08 | 2021-02-26 | 宝鸡保德利电气设备有限责任公司 | Positioning device for cantilever type light contact net suspension system |
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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 |