CN102501873A - Wheel-rail load-increasing device for railway vehicle - Google Patents
Wheel-rail load-increasing device for railway vehicle Download PDFInfo
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- CN102501873A CN102501873A CN2011103432022A CN201110343202A CN102501873A CN 102501873 A CN102501873 A CN 102501873A CN 2011103432022 A CN2011103432022 A CN 2011103432022A CN 201110343202 A CN201110343202 A CN 201110343202A CN 102501873 A CN102501873 A CN 102501873A
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- electromagnet
- coil spring
- load device
- vehicle wheel
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Abstract
The invention relates to a wheel-rail load-increasing device for a railway vehicle, comprising an axial suspension boom (1), a framework (2), a dual-coil spring (3), an electromagnet and the winding thereof (4) and a magnetically-insulated gasket (5), wherein the axial suspension boom (1) is welded on the top of the framework (2); the framework (2) is a frame-type structure with a hollow middle; the rewinding spring (3) is disposed at the middle of the framework (2); the electromagnet and the winding thereof (4) are disposed at the both sides of the framework (2); and the magnetically-insulated gasket (5) is disposed on the bottom of the framework. Compared with the prior art, the wheel-rail load-increasing device for a railway vehicle disclosed by the invention can improve climbing capacity and change the positive pressure on steel rail by wheel set when the vehicle runs in upward slope, downward slope and flat slope, thereby freely changing the traction of the vehicle and enabling the vehicle to be of high service life and safety.
Description
Technical field
The invention belongs to the track traffic equipment technical field, especially relate to a kind of guideway vehicle wheel track increment of load device.
Background technology
The conventional rails traffic system adopts the wheel track traffic system mostly, i.e. steel wheel rail traffic system.Its advantage is automatic guide ability and the low running resistance that it is good.Yet less friction drag between steel-steel makes that adhesion is not enough in the especially climbing process in the vehicle operating process just, the climbing difficulty.The existing main line railway and the urban track traffic gradient generally are no more than 35 ‰.And comparatively speaking, the bond area of employed traditional rubber tire tire and orbital plane is big in the tire traffic system, and adhesion coefficient is high, can bring into play bigger wheel rail adhesion power, the increase of its bond area and The friction coefficient positive pressure and increasing.In addition, the tire system noise is low relatively, and is strong to the adaptive capacity in route curve radius and ramp.But because squeegee action is big, load-carrying capacity is littler than the steel wheel of same diameter; The distortion lag effect of rubber is also bigger, causes rolling resistance corresponding bigger, and these also are rubber-tyred guideway vehicle adverse factors.
Therefore to consider to utilize rubber-tyred guideway vehicle adhesion big and play advantage such as single stage suspension effect; Need improve its structural behaviour; Make its climbing the time have bigger tractive force, stronger load-carrying capacity during flat slope, long have higher safety in operation during apart from descending.
Summary of the invention
The object of the invention is exactly for the defective that overcomes above-mentioned prior art existence a kind of guideway vehicle wheel track increment of load device that can significantly improve hill climbing ability to be provided; Be intended to change vehicle uphill/downhill and flat slope hour wheel to positive pressure to rail; Thereby freely change the size of its tractive force, and make vehicle that higher service life and safety arranged.
The object of the invention can be realized through following technical scheme:
A kind of guideway vehicle wheel track increment of load device; Comprise seize suspension rod, framework, two coil spring, electromagnet and winding thereof and exhausted magnetic insert; Described seize suspension rod is welded on the top of framework, and described framework is the closed-in construction of intermediate hollow, and described pair of coil spring is located at the middle part of framework; Described electromagnet and winding thereof are located at the both sides of framework, and described exhausted magnetic insert is located at the bottom of framework.
Two coil springs bottom is provided with bolt, through this its length of bolt free adjustment.
Two coil springs provide the application force of 3600N through electromagnet suction effect compression elongation 4mm.
The spring material of two coil springs adopts 55Si2Mn or 60Si2Mn.
Coil spring was nested in two coil springs were reached by cycle spring constitutes, and the diameter of described cycle spring is 16.00mm, and middle footpath is 70.00mm, and number of active coils is 2.5, and rigidity is 755N/mm, and free height is 95.00mm; The diameter of coil spring is 8.00mm in described, and middle footpath is 35.00mm, and number of active coils is 6.5, and rigidity is 145N/mm, and free height is 96.00mm.
Electromagnet and winding thereof adopt U type electromagnet and symmetry placement up and down, and the cross-section of air gap amasss S=90*35mm, electric current I=20A, and monolateral coil 190 circles, when not switching on, gas length 4mm, during energising, electromagnet repulsion is 3.6KN.
Exhausted magnetic insert is processed by the non-magnetic material of lead, copper or Ba Hejin, makes most magnetic line of forces all pass through electromagnet.
The guideway vehicle hill climbing ability depends on that wheel weighs axle and the size of adhesion coefficient; Because it is a lot of to influence the factor of adhesion coefficient; Such as wheel to material, friction coefficient and the traveling portion dynamic performance of rail, so this increment of load device design is considered emphatically to change wheel to the positive pressure to rail.
Compared with prior art, Applicable scope of the present invention is wider, and is easy to use, can be through control electromagnet switching electricity, and size of current is controlled.Train is when flat slope, and the tractive force that needs should suitably reduce to take turns the positive pressure to rail than little when climbing; This moment, electromagnet was in "on" position; The electromagnet excitation magnetic rises, and spring is compressed and makes amount of spring compression reduce, thereby has reduced wheel to the positive pressure of rail and the bond area of tire and orbital plane are reduced; Reduce friction coefficient between wheel track simultaneously, played the off-load effect on the level line circuit; When train moves on heavy grade (ascents and descents), need bigger friction force come balancing gravity component, and make vehicle can be on the heavy grade circuit emergency; Therefore should add bull wheel to positive pressure to rail; This moment, electromagnet was in not "on" position, did not have suction between magnet, and spring is because self restoring force and bottom elastic beam effect return to initial given preloading condition; Make wheel increase to positive pressure to rail; The bond area of tire and orbital plane increases, and has increased friction coefficient between wheel track simultaneously, has played the increment of load effect on the circuit of ramp.Making this guideway vehicle can move the ramp rises to about 370 ‰ by original 35 ‰.
When emergency such as sudden power occurring at vehicle, because not energising, spring will provide maximum wheel rail pressure; Friction force reaches maximum between wheel track thereby make; This friction force guarantees that much larger than partical gravity operational vehicle stops at predetermined distance, has guaranteed that simultaneously vehicle can not slide on the ramp; This increment of load device utilizes the interactively of spring and electromagnet; Device can freely change wheel to the positive pressure to rail, thereby changes its needs to the tractive force size, plays the effect of good enhancing vehicle hill climbing ability, the stable and emergency braking on the ramp.
Description of drawings
Fig. 1 is a main TV structure scheme drawing of the present invention;
Fig. 2 is a side-looking structural representation of the present invention.
1 is that seize suspension rod, 2 is that framework, 3 is that two coil springs, 4 are that electromagnet and winding, 5 thereof are to cut off magnetic insert among the figure.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
A kind of guideway vehicle wheel track increment of load device; Its structure is shown in Fig. 1-2, and this increment of load device comprises seize suspension rod 1, framework 2, two coil spring 3, electromagnet and winding 4 thereof and exhausted magnetic insert 5, and seize suspension rod 1 is welded on the top of framework 2; Framework 2 adopts the closed-in construction of intermediate hollow; Two coil springs 3 are located at the middle part of framework 2, and electromagnet and winding 4 thereof are located at the both sides of framework 2, and exhausted magnetic insert 5 is located at the bottom of framework.
Wherein, framework 2 adopts ordinary steel structural beams 270*120mm respectively with seize suspension rod 1,170*120mm, and elastic beam 170*120mm makes, elastic beam and ordinary steel structural beams through the steel structure lateral column through being welded to connect.
Two coil springs 3 bottoms are provided with bolt, through this its length of bolt free adjustment, through electromagnet suction effect compression elongation 4mm, the application force of 3600N are provided.The spring material of two coil springs 3 adopts 55Si2Mn or 60Si2Mn, and coil spring is nested in being reached by cycle spring constitutes, and the diameter of described cycle spring is 16.00mm; Middle footpath is 70.00mm; Number of active coils is 2.5, and rigidity is 755N/mm, and free height is 95.00mm; The diameter of coil spring is 8.00mm in described, and middle footpath is 35.00mm, and number of active coils is 6.5, and rigidity is 145N/mm, and free height is 96.00mm.
Electromagnet and winding 4 thereof adopt U type electromagnet and symmetry placement up and down, and the cross-section of air gap amasss S=90*35mm, electric current I=20A, and monolateral coil 190 circles, when not switching on, gas length 4mm, during energising, electromagnet repulsion is 3.6KN.Exhausted magnetic insert 5 is processed by the non-magnetic material of lead, copper or Ba Hejin, makes most magnetic line of forces all pass through electromagnet.
Train is when flat slope, and the increment of load device of this new structure can suitably reduce the positive pressure of tire to rail; When climbing, thereby the bond area of tire and orbital plane has increased wheel to the positive pressure to rail, the increment of load effect when having played climbing; When emergency braking, very big braking force can be provided, prevent vehicle when descending because emergency and out of control.
Claims (7)
1. guideway vehicle wheel track increment of load device; It is characterized in that; This increment of load device comprises seize suspension rod (1), framework (2), two coil spring (3), electromagnet and winding (4) thereof and exhausted magnetic insert (5); Described seize suspension rod (1) is welded on the top of framework (2), and described framework (2) is the closed-in construction of intermediate hollow, and described pair of coil spring (3) is located at the middle part of framework (2); Described electromagnet and winding thereof (4) are located at the both sides of framework (2), and described exhausted magnetic insert (5) is located at the bottom of framework.
2. a kind of guideway vehicle wheel track increment of load device according to claim 1 is characterized in that described pair of coil spring (3) bottom is provided with bolt, through this its length of bolt free adjustment.
3. a kind of guideway vehicle wheel track increment of load device according to claim 1 is characterized in that, described pair of coil spring (3) provides the application force of 3600N through electromagnet suction effect compression elongation 4mm.
4. a kind of guideway vehicle wheel track increment of load device according to claim 1 is characterized in that, the spring material of described pair of coil spring (3) adopts 55Si2Mn or 60Si2Mn.
5. a kind of guideway vehicle wheel track increment of load device according to claim 1; It is characterized in that coil spring was nested in described pair of coil spring (3) reached by cycle spring constitutes, the diameter of described cycle spring is 16mm; Middle footpath is 70mm; Number of active coils is 2.5, and rigidity is 755N/mm, and free height is 95mm; The diameter of coil spring is 8mm in described, and middle footpath is 35mm, and number of active coils is 6.5, and rigidity is 145N/mm, and free height is 96mm.
6. a kind of guideway vehicle wheel track increment of load device according to claim 1 is characterized in that, described electromagnet and winding thereof (4) adopt U type electromagnet and symmetry placement up and down; The cross-section of air gap amasss S=90*35mm; Monolateral coil 190 circles, when not switching on, gas length 4mm; During electrical current I=20A, electromagnet repulsion is 3.6KN.
7. a kind of guideway vehicle wheel track increment of load device according to claim 1 is characterized in that, described exhausted magnetic insert (5) is processed by the non-magnetic material of lead, copper or Ba Hejin, makes most magnetic line of forces all pass through electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110343202.2A CN102501873B (en) | 2011-11-03 | 2011-11-03 | Wheel-rail load-increasing device for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110343202.2A CN102501873B (en) | 2011-11-03 | 2011-11-03 | Wheel-rail load-increasing device for railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102501873A true CN102501873A (en) | 2012-06-20 |
| CN102501873B CN102501873B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110343202.2A Expired - Fee Related CN102501873B (en) | 2011-11-03 | 2011-11-03 | Wheel-rail load-increasing device for railway vehicle |
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| Country | Link |
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| CN (1) | CN102501873B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213597A (en) * | 2013-05-02 | 2013-07-24 | 同济大学 | Electromagnetic controllable mechanical brake parking device |
| CN110709305A (en) * | 2017-04-21 | 2020-01-17 | 西门子交通有限公司 | Method for compensating for loss of tractive effort of a rail vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395848A (en) * | 1972-07-26 | 1975-05-29 | Schweizerische Lokomotiv | Rail traction vehicles |
| US3896740A (en) * | 1973-01-09 | 1975-07-29 | Schweizerische Lokomotiv | Pneumatic bogie stabilizer |
| US5611284A (en) * | 1996-01-19 | 1997-03-18 | Atchison Casting Corporation | Rail truck suspension and journal housing retention assembly |
| EP1048542A2 (en) * | 1999-04-30 | 2000-11-02 | Siemens Aktiengesellschaft | Method and device for increasing the normal force of a railway vehicle |
| DE19940046A1 (en) * | 1999-08-24 | 2000-11-16 | Siemens Ag | Method of influencing perpendicular force between rail vehicle and rail |
| JP2003025992A (en) * | 2001-07-12 | 2003-01-29 | Railway Technical Res Inst | Wheel load control device and method for railway rolling stock |
| CN1919675A (en) * | 2005-08-25 | 2007-02-28 | 李岭群 | Permanent magnetic suspension composite bogie |
| US20100175580A1 (en) * | 2009-01-14 | 2010-07-15 | General Electric Company | Assembly and method for vehicle suspension |
-
2011
- 2011-11-03 CN CN201110343202.2A patent/CN102501873B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395848A (en) * | 1972-07-26 | 1975-05-29 | Schweizerische Lokomotiv | Rail traction vehicles |
| US3896740A (en) * | 1973-01-09 | 1975-07-29 | Schweizerische Lokomotiv | Pneumatic bogie stabilizer |
| US5611284A (en) * | 1996-01-19 | 1997-03-18 | Atchison Casting Corporation | Rail truck suspension and journal housing retention assembly |
| EP1048542A2 (en) * | 1999-04-30 | 2000-11-02 | Siemens Aktiengesellschaft | Method and device for increasing the normal force of a railway vehicle |
| DE19940046A1 (en) * | 1999-08-24 | 2000-11-16 | Siemens Ag | Method of influencing perpendicular force between rail vehicle and rail |
| JP2003025992A (en) * | 2001-07-12 | 2003-01-29 | Railway Technical Res Inst | Wheel load control device and method for railway rolling stock |
| CN1919675A (en) * | 2005-08-25 | 2007-02-28 | 李岭群 | Permanent magnetic suspension composite bogie |
| US20100175580A1 (en) * | 2009-01-14 | 2010-07-15 | General Electric Company | Assembly and method for vehicle suspension |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213597A (en) * | 2013-05-02 | 2013-07-24 | 同济大学 | Electromagnetic controllable mechanical brake parking device |
| CN103213597B (en) * | 2013-05-02 | 2016-01-20 | 同济大学 | A kind of electromagnetism controllable type mechanical braking parking device |
| CN110709305A (en) * | 2017-04-21 | 2020-01-17 | 西门子交通有限公司 | Method for compensating for loss of tractive effort of a rail vehicle |
| US11285976B2 (en) | 2017-04-21 | 2022-03-29 | Siemens Mobility GmbH | Method for compensating for a loss of traction of a rail vehicle |
| CN110709305B (en) * | 2017-04-21 | 2022-09-16 | 西门子交通有限公司 | Method for compensating for loss of tractive effort of a rail vehicle |
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| Publication number | Publication date |
|---|---|
| CN102501873B (en) | 2014-06-25 |
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