CN110182055A - A kind of suspension type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall - Google Patents

A kind of suspension type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall Download PDF

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Publication number
CN110182055A
CN110182055A CN201910521104.XA CN201910521104A CN110182055A CN 110182055 A CN110182055 A CN 110182055A CN 201910521104 A CN201910521104 A CN 201910521104A CN 110182055 A CN110182055 A CN 110182055A
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CN
China
Prior art keywords
suspension
type magnetic
levitation train
rise
fall
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Pending
Application number
CN201910521104.XA
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Chinese (zh)
Inventor
皇甫贵田
李俊叶
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Shanxi Zhonghai Weiwei Rail Transit Engineering Co Ltd
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Shanxi Zhonghai Weiwei Rail Transit Engineering Co Ltd
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Priority to CN201910521104.XA priority Critical patent/CN110182055A/en
Publication of CN110182055A publication Critical patent/CN110182055A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L13/00Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
    • B60L13/04Magnetic suspension or levitation for vehicles

Abstract

The invention discloses the suspension type magnetic-levitation train single track electromagnetic suspension mechanisms that one kind can rise and fall, including buoyant element (100), running part (300) and the traction element (200) being connected between running part (300) and buoyant element (100).Two levitating electromagnets that electromagnetic coupling is formed with suspension rail (101) are equipped on suspension rack, suspension rack lower part is equipped with detent block group (110).The present invention effectively reduces the normal pressure in rubber tire operational process between track, alleviates tyre wearing problem;Effective friction of starting and braking is adjusted using the different stresses of rubber tire, and according to suspended sensor provide distance value and velocity sensor provide velocity amplitude come control input levitating electromagnet in electric current, realize floating, landing, loss of weight, failure emergency etc. functions.With simple for structure, low cost, the features such as energy consumption is small, and maintenance workload is small, high reliablity is runed.

Description

A kind of suspension type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall
Technical field
The present invention relates to technical field of rail traffic, in particular to a kind of suspension type magnetic-levitation train single track electromagnetism that can be risen and fallen Suspension mechanism.
Background technique
Suspension type magnetic-levitation train is a kind of New Schemes track vehicle, the urban track traffic system as a kind of diversification The plurality of advantages such as system has occupied area few, and the construction period is short, and cost of investment is low, can serve sightseeing visiting scienc spot, the city of tourist district The supplement traffic etc. of multilevel traffic, overhead grade separation between city's building will have by its own plurality of advantages is estimated in China Wide development and application prospect.
Currently, existing suspension type monorail vehicle is to reach noise reduction purpose, travelling wheel mostly uses greatly rubber tire.And travelling wheel Vehicle gravity itself, the abrasion of rubber tire are more serious during actual operation, in turn result in system operation maintenance cost Increase.Existing medium-and low-speed maglev train is using linear motor driving operation, and since the linear motor working clearance is big, there are side ends Effect, leads to that energy consumption is high.Regardless of still using linear motor using rubber tire, it is both needed to effective noise reduction, adapts to urban transportation.
In consideration of it, how preferably to adjust the normal pressure in rubber tire operational process between track effectively using suspension technology Section adjusts effective friction of starting and braking while alleviating tyre wearing using the different stresses of rubber tire;Utilize glue Wheel drive traveling replaces the linear motor of traditional magnetic-levitation train to drive traveling, and energy consumption is effectively reduced, and is a kind of completely new and beneficial It attempts.
Currently, Germany, Japan, the U.S., China have carried out the research to suspension monorail and magnetic-levitation train, China The existing item goal programming in the cities such as Beijing, Shanghai, Changsha, Shenzhen Qingyuan City, Guizhou Yellow fruit tree, Chengdu, Binhai New Area in Tianjin And construction, the suspension train of research optimization standard, is urgent and beneficial to diversification traffic and future transportation Mode exploration 's.
Summary of the invention
In view of the above deficiency of the prior art, the object of the present invention is to provide a kind of suspension type magnetic-levitation trains that can be risen and fallen Single track electromagnetic suspension mechanism makes it that can decide whether floating according to the case where train speed, and rubber tire burden can be effectively reduced, extend Rubber tire service life is adjusted effective friction of starting and braking using the different stresses of rubber tire, operation energy consumption is effectively reduced.
Technical scheme is as follows:
A kind of suspension type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall, including buoyant element 100, running part 300 and the traction element 200 that is connected between running part 300 and buoyant element 100.The buoyant element 100 includes being placed in rail The suspension rail 101 of upper surface center position in road box beam and the suspension rack 108 for being placed in 101 lower part of suspension rail are set on suspension rack There are two levitating electromagnets that electromagnetic coupling is formed with suspension rail 101, suspension rack lower part is equipped with detent block group 110;The traveling The rubber tire group 301 of component 300 is mounted on walking frame 302, two with the railway box girder lower part of suspension type magnetic levitation train system Rail effect realizes friction traveling, and the top of walking frame, which is provided with, to form the detent engaged up and down with the detent block group 110 Slot group 304.
Further, 108 on both sides of the middle of suspension rack is provided with the suspension guiding that can be rolled along railway box girder inner sidewall Wheel group 111.
Further, the walking frame 302 is provided with traveling guide wheel group 303.
Further, the levitating electromagnet configured with control its current strength suspension controller and monitor its suspend away from From suspended sensor;The train that the suspension distance value and velocity sensor that suspension controller is provided according to suspended sensor provide Velocity amplitude come control input levitating electromagnet in size of current.
In this way, an individual suspension rail is fixed on the center of the upper surface in the railway box girder of suspension type magnetic levitation train system Position, two levitating electromagnets are separately mounted to the top two sides of suspension rack, and corresponding in suspension rail position;Suspension controller, Suspended sensor, velocity sensor are installed on suspension rack, and detent block group is mounted on suspension rack lower part, position and running part On detent slot group it is corresponding, the suspension guiding wheel group is mounted on suspension rack on both sides of the middle, with suspension type magnetic levitation train system Both side surface effect in railway box girder is played the role of being oriented to and prevent suspension rack from turning on one's side.Draw bar passes through bearing and suspension rack Connection, while being connect by ball bearing with the walking frame on running part.Rubber tire group is mounted on walking frame, floating with suspension type magnetic Two rail effects of the railway box girder lower part of train system realize friction traveling, and the traveling guide wheel group is mounted on walking frame On, guiding role is played with the both side surface effect in the railway box girder of suspension type magnetic levitation train system.Suspension rail is individual One track along line arrangement, convenient for production and installation.
Suspension rack in buoyant element is connect by secondary suspension with the car body of suspension type magnetic levitation train system, buoyant element Floating will will be fallen on running part when landing with motor vehicles bodies together floating, buoyant element.The buoyant element can basis The speed of service of train completes three kinds of loss of weight, floating, landing functions can drop in the case where buoyant element breaks down On running part, failure emergency operating is executed by running part.Buoyant element is driven by traction element when running part is run It runs together.
The suspension distance value and velocity sensor that suspension controller in buoyant element need to be provided according to suspended sensor mention The train speed value of confession come control input levitating electromagnet in size of current.
Buoyant element undertakes realizing and suspending for task, and levitating electromagnet and suspension rail form magnetic circuit, when the line of electromagnet In the case that packet is powered, magnetic field will be generated in magnetic circuit, so electromagnetic attraction is generated, when electromagnetism of the suspension rail to buoyant element is inhaled When power is less than buoyant element and the weight of car body (and its load), buoyant element is unable to floating, and loss of weight function may be implemented at this time; When electromagnetic attraction of the suspension rail to buoyant element is greater than or equal to the weight of buoyant element and car body (and its load), suspension portion Floating function may be implemented in part.In order to realize stable suspersion in a certain position, need to control electric current in electromagnetism iron wire packet at any time Size makes suspension rail just be equal to the weight of buoyant element and car body (and its load) always to the electromagnetic attraction of buoyant element, Control this function of size of current is realized by suspension controller.On the one hand suspension controller provides outstanding according to suspended sensor Floating distance value controls size of current, and the train running speed value on the other hand provided according to velocity sensor is to control electric current big It is small.
The suspension type magnetic-levitation train that the present invention realizes there are mainly four types of operating condition, start operating performance, operating condition, damped condition, Fault condition.
Under start operating performance, train speed is static or lower, needs the friction between the rubber tire and track in running part Power drives train speed to increase, and big frictional force needs big normal pressure, so buoyant element drops to away under the operating condition On row component, the rubber tire group of running part bears larger normal pressure.
After train speed reaches a certain level, magnetic-levitation train works in operating condition, at this time plays buoyant element and car body Floating, running part only undertakes own wt, and frictional resistance greatly reduces, and tyre wearing is also effectively relieved.When train is in braking When operating condition, buoyant element and car body need to be landed, increase frictional resistance, ensure that train realizes braking.
When buoyant element failure can not work normally, can drop on running part, continuation is born by running part Duty completes the operation work under fault condition.
No matter under which kind of operating condition, as long as buoyant element drops on running part, loss of weight function is may be implemented in buoyant element, By certain electric current i.e. in its electromagnetism iron wire packet, upward electromagnetic attraction is generated, reduces the pressure to running part.Loss of weight It is how many need to comprehensively consider acceleration needed for frictional resistance and tyre wearing these three factors in frictional force and operation.
Using structure of the invention, both can limited alleviation suspension monorail tyre wearing the problem of, can also keep away Exempting from conventional suspension train leads to the problem of energy consumption is high using linear motor driving, can also can be after in the case where suspension failure Reforwarding battalion, can effectively improve the performance of suspension type monorail magnetic-levitation train.
Detailed description of the invention
Fig. 1 is Fig. 2 overall structure transverse cross-sectional view.
Fig. 2 is the side view of overall system architecture.
Fig. 3 is the schematic diagram of buoyant element floating and landing.Scheme a floating, figure b landing.
Specific embodiment
The suspension type magnetic-levitation train single track electromagnetic suspension mechanism that one kind of the present invention can rise and fall can serve scenic spot sightseeing, building Rail transportation operation field between space in the case of the small freight volume such as traffic, low velocity.
Such as Fig. 1 and Fig. 2 and Fig. 3, system includes buoyant element 100, traction element 200, running part 300.Wherein suspend Component 100 include suspension rail 101, levitating electromagnet 102, levitating electromagnet 103, suspension controller 104, suspension controller 105, Suspended sensor 106, suspended sensor 107, suspension rack 108, velocity sensor 109, detent block group 110, suspension guide wheel group 111;Traction element 200 includes draw bar 201, bearing 202, ball bearing 203;Running part 300 includes rubber tire group 301, traveling Frame 302, traveling guide wheel group 303, detent slot group 304.The suspension rail 101 is fixed on the track of suspension type magnetic levitation train system Upper surface center position in box beam, the levitating electromagnet (102 and 103) are separately mounted to the top two sides of suspension rack 108, And it is corresponding with 101 position of suspension rail;The suspension controller (104 and 105), suspended sensor (106 and 107), velocity pick-up Device 109 is installed on suspension rack 108, and the detent block group 110 is mounted on 108 lower part of suspension rack, position and running part 300 On detent slot group 304 it is corresponding, the suspension guiding wheel group 111 is mounted on 108 on both sides of the middle of suspension rack, with the floating column of suspension type magnetic Both side surface effect in the railway box girder of vehicle system is played the role of being oriented to and prevent suspension rack from turning on one's side.The draw bar 201 It is connect by bearing 202 with suspension rack 108, while being connect by ball bearing 201 with the walking frame 302 on running part 300.Institute It states rubber tire group 301 to be mounted on walking frame 302, two rail effects with the railway box girder lower part of suspension type magnetic levitation train system Realize friction traveling, the traveling guide wheel group 303 is mounted on walking frame 302, the track with suspension type magnetic levitation train system Guiding role is played in both side surface effect in box beam.
Suspension rack 108 in buoyant element 100 is connect by secondary suspension with the car body of suspension type magnetic levitation train system, is hanged It will keep suspending together with motor vehicles bodies after floating 100 floating of component, buoyant element will be fallen on running part 300 when landing. Buoyant element 100 is driven to run together by traction element 200 when running part 300 is run.
The suspension distance value and speed that suspension controller 104 in the buoyant element 100 is provided according to suspended sensor 106 The train speed value that sensor 109 provides is spent to control the size of current in input levitating electromagnet 102.Suspension controller 105 The train speed value that the suspension distance value and velocity sensor 109 provided according to suspended sensor 107 provides is outstanding to control input Size of current in floating electromagnet 103.
Such as Fig. 2 and Fig. 3, further technical solution is that buoyant element 100 undertakes realizing and suspending for task, and suspend electricity Magnet (102 and 103) and suspension rail 101 form magnetic circuit, and in the case that the line packet of electromagnet is powered, magnetic will be generated in magnetic circuit , so electromagnetic attraction is generated, when electromagnetic attraction of the suspension rail 101 to buoyant element 100 is less than buoyant element 100 and car body When the weight of (and its load), buoyant element 100 is unable to floating, and loss of weight function may be implemented at this time;It suspends when 101 Duis of suspension rail When the electromagnetic attraction of component 100 is more than or equal to buoyant element 100 and the weight of car body (and its load), buoyant element 100 can To realize floating function.In order to realize stable suspersion in a certain position, need to control the size of electric current in electromagnetism iron wire packet at any time, Suspension rail 101 is set just to be equal to the weight of buoyant element 100 and car body (and its load) always to the electromagnetic attraction of buoyant element 100 Amount controls this function of size of current by suspension controller (104 and 105) Lai Shixian.When 100 floating of buoyant element, traction Bearing 202 in component 200 follows floating, and draw bar 201 is driven to rotate.Traction element 200 can be transmitted from running part 300 Driving force, push the traveling together of buoyant element 100.When buoyant element 100 is landed, detent block group 110 will just be fallen in away In the detent slot group 304 of row component.
As one embodiment, suspension rail section is rectangle, sectional dimension 300mm*25mm, length 1000mm, The sectional dimension of corresponding loss of weight electromagnet is long 300mm, wide 125mm, the wide 25mm of both sides magnetic pole, the wide 50mm of consequent pole, list A electromagnet length is 1000mm, and the material of suspension rail and suspension iron is Q235, and electromagnetism iron wire packet fills the section ruler of copper wire Very little is 100mm*100mm, and the filling rate of copper wire selects 60% in electromagnet, and the air gap that select to land is 15mm, suspension air gap 8mm, Selecting every square millimeter of electric current passed through is respectively 0.4A, 0.8A, 1.2A, 1.6A, is obtained by Finite Element Simulation Analysis at this In the case where a little electric currents, electromagnetic attraction and corresponding speed between levitating electromagnet and hanging rail and it see the table below apart from situation.
As seen from the above table, under unit rice length, the levitating electromagnet of the size can be with 1.7 tons of weight of floating, as long as setting The car body and its load of meter and the total weight of buoyant element are less than 1.7 tons, so that it may floating function are realized, if by electromagnet size Increase, it can the bigger weight of floating.
As seen from the above table, the big of the electric current of levitating electromagnet line packet can be inputted by control according to the situation of change of speed It is small, to control the degree of loss of weight, in the case where starting or braking, can choose the mode of obstructed electric current, allow buoyant element and The weight of car body is fully pressed against on running part, convenient for starting or braking.
Every square millimeter of 1.6A being arranged in upper table is the conservative electric current considered under heat dispersal situations, in optimized heat radiation structure In the case of, also rise to 2A or so.In addition, if Engineering Quality Control it is good, operating distance can also be reduced to 8 millimeters with Under, such suction can be bigger, so the maximum weight suspension is only conservative value.
It as seen from the above analysis, can be neatly according to train running speed by the way of single track electromagnetic suspension and landing Reasonable floating, landing, loss of weight are carried out, has both guaranteed the normal Accelerating running of train, rubber tire pressure is also effectively relieved, increases rubber tire and uses Service life.
In conclusion the suspension type magnetic-levitation train single track electromagnetic suspension mechanism that one kind of the present invention can rise and fall, can be realized The functions such as floating, landing, loss of weight, failure emergency have simple for structure, cost using the suspension type magnetic-levitation train that this method is realized It is low, run the features such as energy consumption is small, and maintenance workload is small, high reliablity.

Claims (4)

1. the suspension type magnetic-levitation train single track electromagnetic suspension mechanism that one kind can rise and fall, including buoyant element (100), running part (300) and the traction element (200) that is connected between running part (300) and buoyant element (100), which is characterized in that described outstanding Floating component (100) include the suspension rail (101) for the upper surface center position being placed in railway box girder and are placed under suspension rail (101) The suspension rack (108) in portion is equipped with two levitating electromagnets that electromagnetic coupling is formed with suspension rail (101), suspension rack on suspension rack Lower part is equipped with detent block group (110);The rubber tire group (301) of the running part (300) is mounted on walking frame (302), and outstanding Two rail effects of the railway box girder lower part of hanging magnetic levitation train system realize friction traveling, and the top of walking frame (302) is set The detent slot group (304) engaged up and down can be formed with the detent block group (110) by being equipped with.
2. the suspension type magnetic-levitation train single track electromagnetic suspension mechanism according to claim 1 to rise and fall, which is characterized in that institute It states suspension rack (108) on both sides of the middle and is provided with the suspension guiding wheel group (111) that can be rolled along railway box girder inner sidewall.
3. the suspension type magnetic-levitation train single track electromagnetic suspension mechanism according to claim 1 to rise and fall, which is characterized in that institute It states walking frame (302) and is provided with traveling guide wheel group (303).
4. the suspension type magnetic-levitation train single track electromagnetic suspension mechanism according to claim 1 to rise and fall, which is characterized in that institute Levitating electromagnet is stated configured with the suspension controller for controlling its current strength and the suspended sensor for monitoring its suspension distance;It suspends The train speed value that the suspension distance value and velocity sensor that controller is provided according to suspended sensor provide is outstanding to control input Size of current in floating electromagnet.
CN201910521104.XA 2019-06-17 2019-06-17 A kind of suspension type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall Pending CN110182055A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113212466A (en) * 2021-05-19 2021-08-06 西南交通大学 Mixed weight-reducing linear driving suspension type train

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113212466A (en) * 2021-05-19 2021-08-06 西南交通大学 Mixed weight-reducing linear driving suspension type train

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