CN102320254A - Mandrel type expansion joint for aluminum-steel composite rails - Google Patents
Mandrel type expansion joint for aluminum-steel composite rails Download PDFInfo
- Publication number
- CN102320254A CN102320254A CN201110188439A CN201110188439A CN102320254A CN 102320254 A CN102320254 A CN 102320254A CN 201110188439 A CN201110188439 A CN 201110188439A CN 201110188439 A CN201110188439 A CN 201110188439A CN 102320254 A CN102320254 A CN 102320254A
- Authority
- CN
- China
- Prior art keywords
- bellows
- steel aluminium
- expansion joint
- plug
- aluminum
- 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.)
- Pending
Links
Images
Landscapes
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention relates to a mandrel type expansion joint for aluminum-steel composite rails, belonging to apparatuses for power supply in rail transit. The mandrel type expansion joint is mainly characterized in that a mandrel 2, a bellows 4, a fishplate 7, left and right copper seats, bushes and the like are adopted to form three different routes to transmit the current from an aluminum-steel composite rail 1 at the right side to an aluminum-steel composite rail 6 at the left side. The bellows 4 is sleeved on the mandrel 2, so the bending of the multi-nodal bellows is limited. In this way, the expansion joint is applicable both for lateral contact current connecting mode and for vertical contact current connecting mode; no sparks appear when a current collector passes through; the mandrel type expansion joint is high in reliability and small in craft difficulty; aluminum-steel composite rails with length reaching 100 meters on the circuit expand with heat and contract with cold freely without bending; and the temperature rises little when big current passes through the expansion joint continuously for a long time.
Description
Technical field
The present invention relates to the core rod type expansion pipe of the compound rail of a kind of steel aluminium, belong to the equipment of track traffic power supply usefulness.
Background technology
Before the present invention makes, adopt the compound rail of steel aluminium in the 3rd rail electric power system of prior art middle orbit traffic, current connector of its expansion pipe returning apparatus compensates the deficiency of electric conduction quantity when slide relative contacts between fish plate and the compound rail of steel aluminium.Existing expansion pipe has only two paths that conduct electricity at most.For example the bellows expansion joint of patent No. ZL200820006292.X Alternating Current Power Supply rail device and the compound rail of the patent No. 200920178441.5 steel aluminium and the expansion pipe of the compound rail waveform of the patent No. 201020561737.8 steel aluminium have multi-form current connector.Expansion pipe in the ZL200820006292.X Alternating Current Power Supply rail device only depends on moving contact to make electric current through expansion pipe, and with contact surface galvanic corrosion later on for a long time, reliability reduces.200920178441.5 the bellows expansion joint of the compound rail of steel aluminium, the bellows manufacturing process difficulty of the many ripples of its copper multilayer is big, and yield rate is low.201020561737.8 the multilayer waveform copper sheet in the expansion pipe of the compound rail waveform of steel aluminium is poor in the shape stability in space, contact is awarded electricity under only being fit to, and in the side contacts electric feeding method, adopts because of the big just inconvenience of copper sheet amount of deflection.
Summary of the invention
The objective of the invention is to overcome the expansion pipe shortcoming separately of the compound rail of above-mentioned steel aluminium; Provide that a kind of shape stability is good, current connector can the moving contact transmission of electricity; Can directly transmit electricity from an end to the other end again, and technology difficulty is little, has the expansion pipe in three paths that conduct electricity.
The present invention solves the technical scheme that its problem adopts: remove and clamp the compound rail of left and right steel aluminium with two fish plates to form the basis of expansion pipe external, in the current connector and with copper plug 2 and bellows 4.The right-hand member of plug 2 through right copper seat 3 be connected to the right the compound rail 1 of steel aluminium, the left end of plug 2 is connected to the compound rail 6 of steel aluminium on the left side through left copper seat 5 and taper copper bush 8 wherein.Be with the copper bellows 4 of single layer many ripples on the plug 2, two ends of bellows 4 are separately fixed on left and right sides copper seat 5 and 3.Electric current just reaches on the compound rail 6 of left steel aluminium from the compound rail 1 of right steel aluminium through three paths like this; The one, through 2 fish plates 7, two, copper seat 5,3 and plug 2 and lining 8, three through the left and right sides, through bellows 4 and copper seat, the first two kind is to conduct electricity through moving contact, the third is directly to conduct electricity.
Compared with present technology the present invention has the following advantages:
1, expand with heat and contract with cold, when the expansion pipe gap delta changes about the compound rail of copper seat following left steel aluminium move.The left and right sides compound rail of steel aluminium has three paths holding currents to pass through all the time, and is reliable, the life-span is long.Current collector through the time do not have an electro spark.
2, the plug sectional area is big, and is big through electric current, leans on taper copper bush 8 to conduct electricity between plug and the left copper seat; The contact pressure of 8 pairs of plugs of lining and left copper seat is stable; Rely on scalable contact pressures such as spring 9 and Adjusting bolt Adjusting screw 10, do not receive vibration and the physical features obliquity effects characteristic that conducts electricity, can not kill by sintering.The bellows dissipating area is big, and temperature rise is little when big electric current continues through expansion pipe.
3, the copper bellows good manufacturability of the many ripples of individual layer; Yield rate is high; Servo-actuated was flexible when bellows can expand with heat and contract with cold with the compound rail of steel aluminium; And electric current directly passes to left copper seat from right copper seat through bellows, makes in the expansion pipe and can not produce electro spark, and bellows can prevent that dust and etchant gas from destroying the characteristic that conducts electricity of plug.
4, the present invention's tripping force that slides is little, can regulate, and is little to the support antagonistic force of the compound rail of steel aluminium on the circuit, and system reliability is high.
5, shape stability of the present invention is good, can flexural downwarping after bellows is enclosed within on the plug, can be used for side contacts, contact down, on contact any electric form of awarding.
Description of drawings
Fig. 1 is a main structure chart of the present invention.
Fig. 2 is a drawing in side sectional elevation of the present invention (A-A cuts open).
Fig. 3 is the birds-eye view (B-B cuts open) of expansion pipe body among the present invention.
Fig. 4 is the cutaway view of the present invention left side copper seat 5.
Fig. 5 is the constructional drawing of taper copper bush 8 among the present invention.
The specific embodiment
Following the present invention combines the embodiment in the accompanying drawing to further describe:
In Fig. 1, on the compound rail 1 of right steel aluminium right copper seat 3 has been installed, on the compound rail 6 of left steel aluminium, left copper seat 5 has been installed, the right-hand member of plug 2 is fixed in the right copper seat 3, and the left end of plug 2 passes left copper seat 5.Bellows 4 is enclosed within the stage casing of plug 2, and two ends of bellows 4 are separately fixed at the inboard of right copper seat 3 and left copper seat 5.The current connector of being made up of left and right sides copper seat, plug and bellows etc. has constituted two paths that the compound rail of steel aluminium conducts electricity from right-hand member toward left end.On this two paths is electric the relation of parallel connection, compact conformation, shape stability is good, and bellows connect by a plurality of node, can be crooked after being enclosed within on the plug, the stroke of bellows is big, can prevent that dust from dropping on the plug, and the minimizing etchant gas is to the destruction of plug.The left side section of plug 2 is expanded with heat and contract with cold with the compound rail of steel aluminium with left copper seat 5 and relative displacement is vertically being arranged; So the current connector of being made up of copper seat, plug and bellows etc. neither hinders the left and right sides compound rail of steel aluminium and expands with heat and contract with cold and relatively move; Also can be in this relatively moving the continuous transmission of holding current, can not interrupt.
In Fig. 2, the latter half is the body of expansion pipe, because of the A-A slice location is positioned at the middle part of expansion pipe, so show the compound rail of steel aluminium be cut into about 2 half.Make the compound rail of left and right sides steel aluminium not separately thereby the M12 bolt of bottom is clamped two fish plates 7, guarantee that the compound rail 6 of left and right sides steel aluminium and 1 is through the fish plate transmission current toward two sides.Because the swelling force of the compound rail of steel aluminium is bigger, for example 5000mm
2The compound rail of steel aluminium in cross section longitudinal expansion power when 80 ℃ of the temperature difference reaches 76 tons; And the gripping power of M12 bolt is much smaller than 600 kilograms; Moving freely when so the M12 bolt can not hinder the compound rail of steel aluminium to expand with heat and contract with cold, the compound rail of steel aluminium that has guaranteed to reach in the circuit hundred meters can be crooked.The first half of Fig. 2 is a current connector; Right copper seat 3 is fixed on the compound rail 1 of right steel aluminium; Bellows 4 is fixed on the right copper seat 3; The garden heart of bellows 4 overlaps with the garden heart of plug 2, and inside diameter of bel is slightly larger than the external diameter of plug, when the bending meeting of by gravity more for a long time of bellows wave number is limited by plug.Even also can dependable service when electricity is awarded in the side direction contact.
In Fig. 3, the compound rail of steel aluminium is divided into about 6 and 12 half according to the cutting of " Z " font line, draws back certain distance δ, and this is the expansion pipe gap after circuit is installed apart from δ.Thereby 4 M12 bolts divide two groups to clamp 1 meter fish plate how long 7 and clamped the compound rail of left and right sides steel aluminium.Bolt passes the hole, garden at fish plate; And what on the compound rail of steel aluminium, pass is elongated slot, so steel aluminium compound rail in the left and right sides can move relative to fish plate 7, expand with heat and contract with cold variation, winter gap delta of gap delta is big; Summer, the gap was little; 0.000021/ ℃ of the compound path coefficient of expansion of steel aluminium, the size in gap depends on the width between centers of ambient temperature and two expansion pipes, the compound rail of up to a hundred meters steel aluminium of the compound rail 6 of the steel aluminium on the left side and the left side is installed and is connected; The compound rail of the up to a hundred meters steel aluminium of the compound rail 1 of steel aluminium and the right on the right is installed and is connected, and forms the 3rd rail supply line.
In Fig. 4, the right section of the endoporus of left copper seat 5 is 1: 19 a taper hole of gradient.Left side section is the tapped bore of M56 * 2, and the line of centers of plug 2 is consistent with the inner hole centreline of left copper seat 5, is with taper copper bush 8 on the plug 2, and its outer garden tapering also is 1: 19.The spring 9 that sky is enclosed within on the plug is advanced to the right according to M56 * 2 threads turn by the Adjusting bolt Adjusting screw 10 on the left side; Further push lining 8 after the compression more to the right; Because lining 8 right sides have 12 grooves; So 12 the outer garden awl wall of muscle and 1: 19 taper hole inwall of left copper seat 5 are adjacent to, the surface, outer garden of the interior garden hole wall of 12 muscle and plug 2 is adjacent to.Lining 8 depends on the rigidity of area of contact, spring 9 and the amount of compression of 10 pairs of springs 9 of Adjusting bolt Adjusting screw with the footprint pressure of left copper seat 8 and plug 2; Behind the checking footprint pressure,, safeguard that footprint pressure is constant through the lengthwise position of gland 11 and nut 12 lock adjustment swivel nuts 10.Do not receive vibration effect, not influenced by the physical features bevelled.
Fig. 5 is the constructional drawing of the copper lining 8 of taper, and its endoporus is φ 40, and is identical with the outer garden of plug 2, and the two is the slip tolerance fit.The right section in the outer garden of lining 8 is a cone, and gradient 1: 19 is consistent with the internal taper hole gradient of left copper seat 5.Lining 8 usefulness lines are cut 12 grooves open, form 12 muscle.Lining can select for use bryllium bronze silver-plated, and the right-hand member of 12 muscle becomes electrical contact, and these muscle are longer, becomes 12 springs, and eigentone is lower, the effect that has vibration damping and do not resonate.
Among the present invention 1, fish plate; 2, left and right sides copper seat and lining and plug; 3, bellows three paths reach the compound rail 6 of left steel aluminium with electric current from the compound rail 1 of right steel aluminium, become practical expansion pipe.
Claims (3)
1. the core rod type expansion pipe of the compound rail of steel aluminium; Comprise the compound rail of steel aluminium, fish plate and the current connector that are divided into two sections; It is characterized in that current connector by plug (2), bellows (4) and copper seat, lining formations such as (8), expansion pipe has three paths that conduct electricity.
2. the core rod type expansion pipe of the compound rail of steel aluminium according to claim 1; It is characterized in that the copper lining of silver-plated taper (8) has 12 electrical contacts and links left copper seat (5) and plug (2); Lining (8) is regulated by spring (9) and Adjusting bolt Adjusting screw (10) the footprint pressure of left copper seat (5) and plug (2), and by gland (11) and nut (12) locking.
3. the core rod type expansion pipe of the compound rail of steel aluminium according to claim 1 is characterized in that the bellows (4) of the many ripples of individual layer is enclosed within on the plug (2), and two ends are fixed on right copper seat (3) and the left copper seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188439A CN102320254A (en) | 2011-06-29 | 2011-06-29 | Mandrel type expansion joint for aluminum-steel composite rails |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110188439A CN102320254A (en) | 2011-06-29 | 2011-06-29 | Mandrel type expansion joint for aluminum-steel composite rails |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102320254A true CN102320254A (en) | 2012-01-18 |
Family
ID=45448147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110188439A Pending CN102320254A (en) | 2011-06-29 | 2011-06-29 | Mandrel type expansion joint for aluminum-steel composite rails |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102320254A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201472183U (en) * | 2009-09-04 | 2010-05-19 | 李雷 | Corrugated pipe expansion joint for steel-aluminium composite track |
| CN201551844U (en) * | 2009-12-10 | 2010-08-18 | 芜湖博万德工艺品有限公司 | Novel electricity getting device of toy track car |
| CN101823446A (en) * | 2010-04-28 | 2010-09-08 | 浙江旺隆轨道交通设备有限公司 | Contact rail expansion joint |
| CN201633573U (en) * | 2010-04-28 | 2010-11-17 | 浙江旺隆轨道交通设备有限公司 | Externally sliding contact rail expansion joint |
| CN201824901U (en) * | 2010-10-06 | 2011-05-11 | 李雷 | Waved expansion joint for steel-aluminum composite rail |
| CN202243065U (en) * | 2011-06-29 | 2012-05-30 | 李雷 | Core rod-type expansion joint for steel and aluminum compound rails |
-
2011
- 2011-06-29 CN CN201110188439A patent/CN102320254A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201472183U (en) * | 2009-09-04 | 2010-05-19 | 李雷 | Corrugated pipe expansion joint for steel-aluminium composite track |
| CN201551844U (en) * | 2009-12-10 | 2010-08-18 | 芜湖博万德工艺品有限公司 | Novel electricity getting device of toy track car |
| CN101823446A (en) * | 2010-04-28 | 2010-09-08 | 浙江旺隆轨道交通设备有限公司 | Contact rail expansion joint |
| CN201633573U (en) * | 2010-04-28 | 2010-11-17 | 浙江旺隆轨道交通设备有限公司 | Externally sliding contact rail expansion joint |
| CN201824901U (en) * | 2010-10-06 | 2011-05-11 | 李雷 | Waved expansion joint for steel-aluminum composite rail |
| CN202243065U (en) * | 2011-06-29 | 2012-05-30 | 李雷 | Core rod-type expansion joint for steel and aluminum compound rails |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102317104B (en) | Conductive rail joint | |
| CN103303164B (en) | A kind of expansion joint for conductive rail | |
| CA2972611C (en) | Apparatus for enclosing energy storage devices | |
| CN202134844U (en) | Electrical connector between insulating basin and conductor used for high-voltage switch | |
| US20120152611A1 (en) | Electrically conductive bushing connection to structure for current path | |
| CN202243065U (en) | Core rod-type expansion joint for steel and aluminum compound rails | |
| JP2007073889A (en) | Thermoelectric conversion device | |
| CN201084726Y (en) | Heat radiator | |
| CN110882848A (en) | Cathode device of electric dust collector | |
| CN107078489A (en) | Bus-bar system | |
| CN102856677A (en) | Electric connecting device | |
| CN113410687A (en) | Plug terminal, plug connection structure and plug terminal assembly | |
| CN109693582B (en) | Expansion joint | |
| CN102320254A (en) | Mandrel type expansion joint for aluminum-steel composite rails | |
| CN109950843A (en) | A kind of wire casing with fire prevention power down function | |
| CN102714403B (en) | Gas insulating bus bar | |
| CN114659820B (en) | High-temperature-resistant combined type electrode system of heating device in aerospace plane test | |
| CN208479004U (en) | A kind of substation with safe early warning theft protection | |
| CN201824901U (en) | Waved expansion joint for steel-aluminum composite rail | |
| CN205970925U (en) | Steel aluminum composite track expansion pipe of electrically conductive roller bearing in area | |
| CN201472183U (en) | Corrugated pipe expansion joint for steel-aluminium composite track | |
| CN211538214U (en) | Cathode device of electric dust collector | |
| DE102012013624A1 (en) | Latent heat storage module for heat transfer with fluid, has heat conducting plate formed by plug-in structure consisting of plug-in elements, where two types of plug-in elements are provided, which differ in their cross sections | |
| CN111350301B (en) | Square cabin ring beam section bar of fabricated equipment | |
| US8690612B2 (en) | Electrical connectors and methods for coupling the electrical connectors to busbars |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |