CN211494031U - Suspension type train of linear drive and electromagnetism direction - Google Patents

Abstract

The utility model discloses a linearly driven and electromagnetically guided suspended train. A reaction plate is arranged below the top plate of the rail box girder, and further comprises a first carriage and a second carriage which are sheathed inside the rail box girder; the first carriage; The top of the frame is provided with front and rear linear motors, the left and right sides are respectively provided with front and rear guide electromagnets and guide sensors, and a guide wheel group is also provided; the lower part of the first frame is also provided with axles The two ends of the axle are respectively fitted with vehicle support wheels, which are placed on the running surface of the lower plate of the rail box girder; the second frame has the same structure as the first frame; the lower part of the first frame is also connected to the vehicle through the front boom In the front part of the vehicle body, the lower part of the second frame is also connected to the rear part of the vehicle body through the rear boom. The structure of the utility model is beneficial to alleviating the wear of the guide wheel of the existing suspended monorail train, increasing the lateral resistance capability of the vehicle, simplifying the structure of the vehicle and reducing the cost of operation and maintenance.

Description

A suspension train with linear drive and electromagnetic guidance

technical field

The utility model relates to the technical field of transportation, in particular to a suspension train with linear drive and electromagnetic guidance.

Background technique

Suspended train is a new type of rail transportation. As a diversified urban rail transit system, it has many advantages such as small footprint, short construction period and low investment cost. The three-dimensional traffic between buildings and the supplementary traffic of elevated interchanges are expected to have broad development and application prospects in my country by virtue of their many advantages.

At present, in order to achieve the purpose of noise reduction, the running wheels of the existing suspended monorail vehicles mostly use rubber wheels. The running wheel itself carries the weight of the vehicle, and the wear of the rubber wheel is more serious in the actual operation process, which in turn causes the system operation and maintenance cost to increase.

In addition, the control of the running direction of the existing suspended train is completed by the guide wheel. The guide wheel needs to control the direction of the vehicle through contact and friction with the side of the rail box beam. On the one hand, it will cause the wear of the guide wheel, and on the other hand, due to There is a gap between the guide wheel and the side of the rail box girder, and there will be back and forth shaking during the guiding process, which will lead to poor lateral resistance of the vehicle.

At present, Germany, Japan, the United States, and China have all carried out research on suspended monorails. China's Guizhou Huangguoshu, Sichuan Chengdu, Tianjin Binhai New Area and other cities have already planned and constructed projects to study optimized suspension trains. It is urgent and beneficial to explore diversified transportation and future transportation modes.

Utility model content

The purpose of the utility model is to provide a suspension type train with linear drive and electromagnetic guidance.

The technical scheme of the present utility model is as follows:

A linear-driven and electromagnetic-guided suspended train comprises a rail box girder, a reaction plate is arranged below the top plate of the rail box girder; it also includes a first carriage sleeved inside the rail box girder, and a first carriage is arranged above the first carriage The front linear motor and the rear linear motor are respectively provided with a left front guide electromagnet, a left rear guide electromagnet, a right front guide electromagnet and a right rear guide electromagnet, respectively. Each guide electromagnet is provided with a guide sensor matched with it; the front linear motor and the rear linear motor are both adjacent to the reaction plate, and the left front guide electromagnet and the left rear guide electromagnet and their guide sensors are adjacent to the track The left plate of the box girder, the right front guide electromagnet and the right rear guide electromagnet and their guide sensors are all adjacent to the right plate of the track box girder; the left and right sides of the first frame are also set respectively There is a guide wheel group; the lower part of the first frame is also provided with a wheel axle, the two ends of the wheel axle are respectively fitted with vehicle support wheels, and the vehicle support wheels are placed on the running surface of the lower plate of the rail box girder; it also includes the same structure as the first frame. Two frames, the lower part of the first frame is also connected to the front part of the vehicle body through the front boom, and the lower part of the second frame is also connected to the rear part of the vehicle body through the rear boom.

Further, the upper middle of the first frame and the second frame are respectively provided with weight reduction electromagnets; each weight reduction electromagnet is provided with a weight reduction sensor matched with it; the weight reduction electromagnet and its reduction The load cells are all adjacent to the top plate of the rail box girder.

The structure of the utility model is beneficial to alleviating the wear of the guide wheel of the existing suspended monorail train, increasing the lateral resistance capability of the vehicle, simplifying the structure of the vehicle and reducing the cost of operation and maintenance.

Description of drawings

Figure 1 is a left side schematic diagram of the overall structure of the system.

Figure 2 is a schematic diagram of the right side of the overall structure of the system.

Fig. 3 is a sectional view of the linear drive part in the overall structure of the system.

FIG. 4 is a cross-sectional view of the electromagnetic weight reduction part in the overall structure of the system.

Figure 5 is a schematic diagram of two systems combined to form a completed vehicle unit.

FIG. 6 is a schematic diagram of the design of a weight-reducing electromagnet in a specific embodiment.

FIG. 7 is a schematic view of the design of the guide electromagnet in the specific embodiment.

FIG. 8 is a schematic diagram of the design of a short-stator asynchronous linear motor in a specific embodiment.

Reference numerals in the figure indicate: linear drive system 100, linear drive system reaction board 101, asynchronous short stator linear motor 102, asynchronous short stator linear motor 103, linear motor controller 104, linear motor controller 105, linear motor stator iron core 106 and Linear motor stator winding 107; electromagnetic guide system 200, guide electromagnet 201, guide electromagnet 202, guide electromagnet 203, guide electromagnet 204, guide controller 205, guide controller 206, guide controller 207, guide controller 208 , guide sensor 209, guide sensor 210, guide sensor 211, guide sensor 212, guide electromagnet pole 213 and guide electromagnet wire pack 214; electromagnetic weight reduction system 300, weight reduction electromagnet 301, weight reduction controller 302, weight reduction Sensor 303, weight reduction electromagnet pole 304 and weight reduction electromagnet wire package 305; vehicle guide wheel set 400, vehicle support wheel 4, track box beam 500, track box beam top surface 501, track box beam running surface 502, vehicle frame 1, body 2, boom 3.

Detailed ways

The use of linear motor drive to realize the running of the suspended train can save the mechanical transmission device. In the existing system, the driving part of the wheel will be omitted, and only the support function will be taken to realize the simplification of the axle system of the suspended train and improve the its reliability. At the same time, with the electromagnetic weight reduction technology, the top surface part of the rail box girder of the suspended train system is fully utilized, and electromagnetic suction is used to make the top of the box girder face the vehicle to generate an upward force, so that the rubber wheels of the vehicle and the box girder are formed. The pressure between the running surfaces is reduced, which can effectively reduce the wear of the rubber wheel. At the same time, the electromagnetic guidance method can effectively avoid the wear of the guide wheel, reduce the operation and maintenance cost, and provide enough anti-lateral force to ensure the smooth running of the train.

Specific examples are as follows:

As shown in FIGS. 1 , 2 , 3 and 4 , the system includes a linear drive system 100 , an electromagnetic guiding system 200 , an electromagnetic weight reduction system 300 , a vehicle guiding wheel set 400 and a rail box beam 500 . Among them, the linear drive system is composed of a reaction plate 101, an asynchronous short stator linear motor 102, an asynchronous short stator linear motor 103, a linear motor controller 104, and a linear motor controller 105; the electromagnetic guidance system 200 is composed of a guide electromagnet 201, a guide electromagnet 202, guide electromagnet 203, guide electromagnet 204, guide controller 205, guide controller 206, guide controller 207, guide controller 208, guide sensor 209, guide sensor 210, guide sensor 211 and guide sensor 212; The weight reduction system 300 is composed of a weight reduction electromagnet 301 , a weight reduction controller 302 and a weight reduction sensor 303 . The reaction plate 101 is fixed in the middle position of the upper surface of the rail box girder 500 of the suspended monorail vehicle system, and the asynchronous short stator linear motors 102 and 103 are installed on the upper part of the frame of the suspended monorail vehicle, corresponding to the position of the reaction plate 101, the linear motors The controllers 104 and 105 are installed on the frame of the suspended monorail vehicle; the guide electromagnets 201, 202, 203 and 204 are respectively fixed on the four corners of the side surface of the suspended monorail vehicle frame, corresponding to the left and right inner sides of the rail box beam 500 , the guidance controller and guidance sensor of the electromagnetic guidance system 200 are installed on the frame of the suspended monorail vehicle; the weight reduction electromagnet 301 is installed on the upper part of the frame of the suspended monorail vehicle, corresponding to the upper surface of the rail box beam 500 , the weight reduction controller and the weight reduction sensor of the electromagnetic weight reduction system 300 are both installed on the frame of the suspended monorail vehicle. The vehicle guide wheel set 400 is fixed on both sides of the frame of the suspended monorail vehicle.

The reaction plate 101 installed on the upper surface of the rail box beam 500 is made of diamagnetic conductive material, and the rail box beam 500 is made of magnetic conductive material.

The suspended monorail vehicle is powered by the linear drive system 100 for running and conventional braking. The running attitude of the vehicle is controlled by the electromagnetic guidance system 200. The electromagnetic weight reduction system 300 can reduce the pressure on the vehicle tires, and the vehicle guides the wheel set. 400 can play a protective role, and can be used for emergency guidance when the electromagnetic guidance system 200 fails.

The asynchronous short stator linear motors 102 and 103 generate driving force through the electromagnetic interaction with the reaction plate 101 to drive the suspended monorail vehicle to run. , phase sequence realization.

The four guiding electromagnets 201, 202, 203, 204 can all generate suction with the inner side of the rail box girder 500 through electromagnetic action, and the guiding controller can control the distance between the guiding electromagnets and the rail box girder according to the distance value collected by the guiding sensor The size of the suction force. When the distance value collected by a guide sensor is greater than its rated distance range, the electromagnetic suction force of the corresponding guide electromagnet is increased. When the distance value collected by a guide sensor is less than its rated distance range, it is reduced. The electromagnetic attraction force of the corresponding guide electromagnet is small, and the four guide electromagnets work together to adjust the running posture of the frame.

The weight reduction electromagnet 301 generates electromagnetic suction through the electromagnetic interaction with the rail box beam 500, and the weight reduction controller 302 can control the suction force between the weight reduction electromagnet 301 and the rail box beam 500 according to the distance value collected by the weight reduction sensor 303. size. Considering the unevenness of the actual line, the installation error of the track box girder and the factors of line settlement, the distance between the weight reduction electromagnet and the upper surface of the track box girder is not constant during the actual operation. When the collected distance value is greater than the rated distance value, increase the suction force between the weight reduction electromagnet and the rail box girder. When the distance value collected by the weight reduction sensor is smaller than the rated distance value, reduce the difference between the weight reduction electromagnet and the rail box beam. The suction force generated by the weight-reducing electromagnet can reduce the force between the wheels of the suspended monorail vehicle system and the rail box beam, so as to achieve the purpose of weight reduction.

As shown in Figure 5, two suspended vehicles and two sets of linear drive and electromagnetic guidance systems for suspended vehicles are combined, and a boom is added to the lower part of each vehicle, and then the carriage is fixed by the boom to achieve a complete Suspended train units that can be used for marshalling for passenger-carrying operations.

As shown in Figure 6, Figure 7 and Figure 8, the section size of the rail box girder is 780mm*1100mm, its plate thickness is 15mm (except the top plate thickness is 25mm), the length is 30m, and the material is Q235; the section size of the reaction plate is 400mm *4mm, the length is 30m, the material is all aluminum; the weight-reducing electromagnet is "mountain" type, the section size is 650mm*200mm, the thickness of the two sides is 25mm, the thickness of the middle plate is 50mm, the length is 1m, the material is Q235, the wire The package material is copper, the filling rate is 0.6, the working air gap is 8mm; the core width of the asynchronous short stator linear motor is 240mm, the pole pitch is 216mm, the number of motor poles is 8, the length of the motor is 1900mm, the number of slots per pole and phase is 3, and the total number of slots is 80 , the air gap magnetic density is 0.18T, the equivalent air gap is 19mm, the winding material is copper, and the iron core is made of silicon steel; The package material is copper, the filling rate is 0.6, and the working air gap is 6mm.

Through the finite element simulation analysis, it is concluded that under the above design parameters, the results of the thrust, weight reduction and guiding force of the system are shown in the following table.

Part Type Output force (unit N) Remark Asynchronous short stator linear motor 5460 thrust Weight loss electromagnet 52399 reduce gravity guide electromagnet 7672 guiding force

As can be seen from the above table, for the linear drive and electromagnetic guidance system of a single suspended vehicle, its two linear motors can provide a total thrust of 10920N, one weight reduction electromagnet can provide 52399N weight reduction, and its single guide electromagnet can provide a total of 10920N thrust. 7672N guiding force.

As shown in Figure 5, the linear drive and electromagnetic guidance systems of two suspended vehicles can be combined into a suspended train unit, and its total thrust can reach 21840N, which can be approximately equivalent to 2184Kg, and its total weight reduction can reach 104798N, which can be approximated Equivalent to 10480Kg.

It can be seen from the above analysis that the method of linear drive, electromagnetic weight reduction and electromagnetic guidance can effectively relieve the pressure of the rubber wheel, increase the service life of the rubber wheel, and simplify the mechanical structure of the vehicle. The guide wheel becomes a safety protection wheel with almost no contact friction, which effectively reduces the operation and maintenance cost.

To sum up, the present invention is a linear drive and electromagnetic guidance system for suspended vehicles. The whole system has the characteristics of simple structure and low operation and maintenance cost, and can well meet the needs of urban auxiliary traffic, tourist area traffic, and inter-building traffic. need.

Claims (2)

1. A suspension type train driven linearly and guided electromagnetically is characterized by comprising a track box girder (500), wherein a reaction plate (101) is arranged below a top plate of the track box girder (500); the track box girder type rail car is characterized by further comprising a first car frame sleeved inside the track box girder (500), a front linear motor (102) and a rear linear motor (103) are arranged above the first car frame, a left front guide electromagnet (203), a left rear guide electromagnet (204), a right front guide electromagnet (202) and a right rear guide electromagnet (201) are respectively arranged on the left side and the right side of the first car frame, and each guide electromagnet is provided with a guide sensor matched with the guide electromagnet; the front linear motor (102) and the rear linear motor (103) are close to the reaction plate (101), the left front guide electromagnet (203), the left rear guide electromagnet (204) and a guide sensor thereof are close to a left side plate of the track box beam (500), and the right front guide electromagnet (202), the right rear guide electromagnet (201) and a guide sensor thereof are close to a right side plate of the track box beam (500); the left side and the right side of the first frame are respectively provided with a guide wheel set (400); a wheel shaft is further arranged below the first frame, two ends of the wheel shaft are respectively sleeved with vehicle supporting wheels, and the vehicle supporting wheels are placed on a running surface of a lower plate of the track box beam (500);

the lower part of the first frame is also connected to the front part of the vehicle body through a front suspension arm, and the lower part of the second frame is also connected to the rear part of the vehicle body through a rear suspension arm.

2. A linearly driven and electromagnetically guided suspended train as claimed in claim 1, wherein said first frame and said second frame are further provided with weight-reducing electromagnets (301) respectively in upper middle portions thereof; each weight-reducing electromagnet (301) is provided with a weight-reducing sensor (303) matched with the weight-reducing electromagnet; the weight-reducing electromagnet (301) and the weight-reducing sensor (303) are close to the top plate of the track box girder (500).

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