CN210391119U - Suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism - Google Patents
Suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism Download PDFInfo
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- CN210391119U CN210391119U CN201920906463.2U CN201920906463U CN210391119U CN 210391119 U CN210391119 U CN 210391119U CN 201920906463 U CN201920906463 U CN 201920906463U CN 210391119 U CN210391119 U CN 210391119U
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Abstract
The utility model discloses a suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism, constitute by suspension type track case roof beam and the bogie that moves on track case roof beam track through the rubber tyer above that and the train automobile body that hangs on the bogie, a serial communication port, it subtracts heavy mechanism to be provided with electromagnetism permanent magnetism hybrid between case roof beam track inboard and bogie, thereby subtract heavy rail and subtract the size of power between the heavy electro-magnet through the size control of control current, and then the size of pressure between control suspension type monorail train rubber tyer and the track. The function of reducing weight with small amplitude under the low-speed condition and reducing weight with large amplitude under the high-speed condition is realized, the loss of rubber wheels is effectively reduced, the energy consumption of a system is reduced, and the performance of a suspended monorail train is improved.
Description
Technical Field
The utility model relates to a track traffic technical field, in particular to suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism.
Background
The suspension type train is a new type of rail transportation tool, is used as a diversified urban rail transportation system, has the advantages of small floor area, short construction period, low investment cost and the like, can serve sightseeing traffic in tourist areas, three-dimensional traffic among urban buildings, supplementary traffic of overhead overpasses and the like, and is expected to have wide development and application prospects in China by virtue of the advantages of the suspension type train.
At present, in order to achieve the purpose of reducing noise, the traveling wheels of the existing suspension type monorail vehicle mostly adopt rubber wheels. The running wheels bear the gravity of the vehicle, and the abrasion of the rubber wheels is serious in the actual operation process, so that the operation and maintenance cost of the system is increased. In view of this, if suspension transportation is implemented in a magnetic suspension manner, it is considered that the problem can be optimized in three ways: firstly, the vehicle is completely free of direct mechanical contact with the rail in a vehicle suspension and non-contact driving mode so as to avoid mechanical impact and abrasion between the rubber wheels and a rail running surface; secondly, the positive pressure between the rubber wheel and the track is reduced by a suspension weight reduction mode, the mechanical impact and the frictional resistance borne by the rubber wheel are reduced, the purpose of prolonging the service life of the rubber wheel is achieved, and the rubber wheel is suitable for low-speed traffic; and thirdly, the non-contact with the rail is realized through the suspension of the vehicle, and the walking is realized through the side contact type driving of the rubber wheels. At present, research on suspension type monorail trains is carried out in Germany, Japan, America and China, and the city of Guizhou Huangguoshu, Sichuan Chengdu, Tianjin coastal new area and the like in China has already been planned and constructed for projects, so that the research on the suspension type trains with optimized standards is urgent and beneficial to diversified traffic and future traffic mode exploration.
SUMMERY OF THE UTILITY MODEL
Based on foretell second mode, the utility model provides a suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism, its characteristics are effectively to reduce the rubber tyer burden, prolong rubber tyer life, reduce and maintain work load, simultaneously because of adding the permanent magnet, subtract the energy consumption of heavy system and effectively reduce.
The technical scheme of the utility model as follows:
a suspended monorail train system with an electromagnetic and permanent magnet mixed weight reduction mechanism is composed of a suspended track box girder, a bogie running on the track of the track box girder through rubber wheels on the suspended track box girder, and a train body suspended on the bogie. Be provided with electromagnetism permanent magnetism hybrid between box girder track inboard and bogie and subtract heavy mechanism: a weight reducing rail 101 made of high-magnetic-flux materials is arranged at the top of the inner side of the box girder rail, two weight reducing electromagnets and a permanent magnet 104 arranged between the two weight reducing electromagnets are arranged at the position, opposite to the weight reducing rail, of the top of the bogie and are in electromagnetic coupling with the weight reducing rail 101; a weight reducing controller 105 for controlling the working current of each weight reducing electromagnet is also arranged on the bogie; the bogie is also provided with a distance sensor 107 for monitoring the distance between the upper surface of the weight-reducing electromagnet and the weight-reducing rail 101 and a speed sensor 106 for monitoring the relative running speed of the bogie and transmitting signals to the weight-reducing controller 105.
Therefore, the weight reducing electromagnets and the permanent magnets jointly form a mixed weight reducing magnet, the mixed weight reducing magnet is installed on the upper portion of a bogie of the suspended monorail train system and corresponds to the weight reducing rail, the two weight reducing electromagnets have the same structural size and are arranged at two ends, and the permanent magnets are arranged in the middle. The weight reduction controller is arranged on the bogie and is used for controlling the current input into the weight reduction electromagnet; the speed sensor is arranged on the bogie and used for providing train speed information for the weight loss controller; the distance sensor is arranged on the bogie and used for detecting the distance between the weight-reducing electromagnet and the weight-reducing rail and sending the distance value to the weight-reducing controller. In actual operation, the weight-reducing controller controls the current input into the weight-reducing electromagnet according to the train speed value provided by the speed sensor and the distance value between the weight-reducing electromagnet and the weight-reducing rail provided by the distance sensor. Thereby adjusting the suction force between the weight-reducing electromagnet and the weight-reducing rail.
The weight reducing force of the system is provided by a weight reducing electromagnet and a permanent magnet together, wherein the force provided by the electromagnet can be adjusted, and the force provided by the permanent magnet is fixed. The permanent magnets provide a fixed force, the force of the weight reducing electromagnets is superposed, the weight reducing controller controls the current input to the weight reducing electromagnets according to the speed value, the larger the speed is, the larger the current input to the weight reducing electromagnets is, the larger the attraction force of the weight reducing rails on the weight reducing electromagnets is, the larger the force provided by the mixed magnets is, and the weight reducing electromagnets are fixed on a bogie of the suspension type monorail train, so that the upward pulling force on the bogie is larger, and the pressure of rubber wheels on the bogie on corresponding rails on a rail box girder is smaller. On the contrary, the smaller the speed is, the smaller the current input into the weight-reducing electromagnet is, the smaller the attraction force of the weight-reducing electromagnet on the weight-reducing rail is, the smaller the force provided by the mixed magnets together is, and the larger the pressure of the rubber wheel on the bogie on the corresponding rail on the rail box girder is.
When the train speed is low, the friction force between the rubber wheel and the rail is needed to drive the train speed to increase, so that in the case, a low-degree weight reduction mode is adopted, the pressure of the rubber wheel on the rail is large, and friction driving is facilitated. When the train is at a high speed, the train is in a state of maintaining the speed or slowly increasing the speed, the friction force between the rubber wheel and the rail is smaller, the running resistance is smaller, and the maintenance of the speed under the condition of low energy consumption is facilitated.
The weight reducing controller can also control the current input into the weight reducing electromagnet according to the distance value between the electromagnet and the weight reducing rail, because under the condition of the same current magnitude, the lower the distance value, the greater the attraction force between the weight reducing electromagnet and the weight reducing rail, because of the irregularity of the line, in the actual operation process, the distance value between the electromagnet and the weight reducing rail is not fixed, if the distance value is reduced, the current input into the weight reducing electromagnet is very large, and the fault that the train is sucked up to collide with the weight reducing rail due to the overlarge attraction force between the weight reducing electromagnet and the weight reducing rail may occur, so once the distance value is reduced and exceeds the allowable value, the weight reducing controller can interrupt the current input into the weight reducing electromagnet until the distance value is restored to be within the allowable range, and then resume the current input.
Adopt the utility model discloses a structure is favorable to alleviating the wearing and tearing of suspension type monorail train rubber tyer, also is favorable to the consumption of lowering system operation simultaneously, effectively improves suspension type monorail train's performance.
Drawings
FIG. 1 is a cross-sectional view taken along line K-K in FIG. 3. The structural details of the weight-reducing electromagnet structure are expressed.
Fig. 2 is a cross-sectional view taken along line P-P in fig. 3. Expressing the details of the permanent magnet structure.
Fig. 3 is a side view of the overall structure of the system.
Figure 4 is a schematic cross-sectional view of a weight reducing rail and weight reducing electromagnet.
FIG. 5 is a schematic cross-sectional view of the weight reducing rail and permanent magnet.
Detailed Description
The utility model relates to a suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism plays the effect of optimizing current monorail suspension train, serves scenic spot sightseeing, fields such as traffic between building.
Referring to fig. 1, 2 and 3, 1 is a track box girder, 2 is a bogie, 3 is a rubber wheel, and 4 is a train body. The system comprises a weight reducing rail 101, a weight reducing electromagnet 102, a weight reducing electromagnet 103, a permanent magnet 104, a weight reducing controller 105, a speed sensor 106 and a distance sensor 107. The weight-reducing rail 101 is fixed in the middle of the upper surface in a rail box girder of the suspension type monorail train system, the weight-reducing electromagnets 102 and 103 are installed at two ends of the upper part of a bogie of the suspension type monorail train system, the permanent magnet 104 is installed between the two weight-reducing electromagnets, and the whole mixed weight-reducing system corresponds to the weight-reducing rail 101; the weight-reducing controller 105 is installed on the bogie and is used for controlling the current input to the weight-reducing electromagnets 102 and 103; the speed sensor 106 is mounted on the bogie and used for providing train speed information for the weight loss controller 105; the distance sensor 107 is mounted on the bogie and is used for detecting the distance between the weight-reducing electromagnet 103 and the weight-reducing rail and sending the distance value to the weight-reducing controller 105.
The weight-loss controller 105 controls the magnitude of the current input to the weight-loss electromagnet according to the train speed value provided by the speed sensor 106 and the distance value between the weight-loss electromagnet and the weight-loss rail provided by the distance sensor 107. The permanent magnet 104 is located in the middle of the mixed weight-reducing structure and is composed of a permanent magnet and a magnetic pole, and under the condition that the working gap is not changed, the attraction force between the permanent magnet 104 and the weight-reducing rail 101 is a fixed value.
The weight-reducing controller 105 controls the current input to the weight-reducing electromagnets (102 and 103) according to the speed values, wherein the larger the speed, the larger the current input to the weight-reducing electromagnets, the larger the attraction force of the weight-reducing electromagnets to the weight-reducing rail, the smaller the speed, the smaller the current input to the weight-reducing electromagnets, and the smaller the attraction force of the weight-reducing electromagnets to the weight-reducing rail. The weight-reducing controller 105 can also control the current input into the weight-reducing electromagnet according to the distance value between the electromagnet and the weight-reducing rail, because under the condition of the same current magnitude, the lower the distance value, the greater the attraction force between the weight-reducing electromagnet and the weight-reducing rail, because of the irregularity of the line, in the actual operation process, the distance value between the electromagnet and the weight-reducing rail is not fixed, if the distance value is reduced, the current input into the weight-reducing electromagnet is very large, and a fault that a train is sucked up to collide with the weight-reducing rail may occur due to the overlarge attraction force between the weight-reducing electromagnet and the weight-reducing rail, so once the distance value is reduced and exceeds the allowable value, the weight-reducing controller interrupts the current input into the weight-reducing electromagnet until the distance value is restored to be within the allowable range, and then resumes the current input.
Because the electromagnetic permanent magnet hybrid weight reducing device formed by the weight reducing electromagnets (102 and 103) and the permanent magnet 104 is fixed on a bogie of the suspended monorail train, the force between the weight reducing device and the weight reducing device is transmitted to the bogie, the bogie is subjected to upward tension, the pressure of rubber wheels on the bogie on corresponding tracks on track box girders is smaller when the tension is larger, and the pressure of the rubber wheels on the bogie on corresponding tracks on the track box girders is smaller when the tension is smaller.
When the train speed is low, the friction force between the rubber wheel and the rail is needed to drive the train speed to increase, so that in the case, a low-degree weight reduction mode is adopted, the pressure of the rubber wheel on the rail is large, and friction driving is facilitated. When the train is at a high speed, the train is in a state of maintaining the speed or slowly increasing the speed, the friction force between the rubber wheel and the rail is smaller, the running resistance is lower, and the speed is favorably maintained under the condition of low energy consumption.
As shown in fig. 4 and 5, the cross-sectional dimension of the weight-reducing rail is 300mm 25mm, and the length thereof is 1000 mm. The two weight reducing electromagnets (102) and (103) are consistent in structural size, the cross section size of each weight reducing electromagnet is 300mm in length and 125mm in width, the magnetic poles on two sides are 25mm in width, the middle magnetic pole is 50mm in width, the length of each electromagnet is 300mm, the weight reducing rail and the weight reducing electromagnets are made of Q235, the cross section size of each electromagnet coil filled copper wire is 100mm and 100mm, the filling rate of the copper wire in the electromagnet is 60%, the working air gap is 10mm, the current passing through each square millimeter is 0.4A, 0.8A,1.2A and 1.6A, and the electromagnetic attraction force between the weight reducing electromagnet and the weight reducing rail and the corresponding speed and distance are obtained through finite element simulation analysis under the condition of the weight reducing currents. The cross-sectional dimensions of the permanent magnet are: 300mm 125mm, the magnetic pole with subtract heavy rail and correspond, magnetic pole both sides magnetic pole width 25mm, the permanent magnet size is: 120mm 60mm, permanent magnet length is 300mm, obtains the suction that produces between permanent magnet and the weight reduction rail under 10mm working distance circumstances through finite element simulation analysis. The situation is shown in the following table.
| Current (an) | 0A | 0.4A | 0.8A | 1.2A | 1.6A |
| Single electromagnet suction (ox) | 0N | 351N | 1418N | 3202N | 5665N |
| Two electromagnets resultant force (ox) | 0N | 702N | 2836N | 6404N | 11330N |
| Permanent magnet 10mm lower suction (ox) | 4887N | 4887N | 4887N | 4887N | 4887N |
| Mixing device total gravity reducing (ox) | 4887N | 5589N | 7723N | 11291N | 16217N |
| Total suction conversion (kilogram) | 489Kg | 559Kg | 772Kg | 1129Kg | 1622Kg |
| Corresponding speed value (kilometer/hour) | 0km/h | 15km/h | 30km/h | 45km/h | 60km/h |
| Corresponding distance value (mm) | ≤8mm | 8mm-10mm | 8mm-10mm | 8mm-10mm | 8mm-10mm |
As can be seen from the above table, in the structural size designed in the embodiment, the permanent magnet provides 489Kg of constant weight reduction force for the weight reduction system, the electromagnet provides 489Kg of weight reduction force adjustable along with the speed, the weight reduction degree is small at low speed, the rubber wheel is convenient to drive the train to accelerate in a friction mode, the weight reduction degree is increased along with the increase of the speed, the bearing capacity of the rubber wheel is convenient to effectively relieve, the service life of the rubber wheel is prolonged, and when the distance between the electromagnet and the weight reduction rail is smaller than 8 mm, the electromagnet stops reducing the weight, and the train is prevented from being absorbed on the weight reduction rail.
As can be seen from the above table, the weight can be reduced by 1.622 tons at most within the weight reduction rail range of one meter. The corresponding 1.6A per square millimeter is conservative current under the condition of considering heat dissipation, and can be increased to about 2A under the condition of fully considering heat dissipation. In addition, if the engineering quality control is good, the working distance can be reduced to 8 mm, so that the suction force is greater, and therefore the maximum weight reduction is only a conservative value.
According to the analysis, the electromagnetic and permanent magnet mixed weight reduction mode is adopted, reasonable weight reduction can be flexibly carried out according to the running speed of the train, normal acceleration running of the train is guaranteed, the pressure of the rubber wheel is effectively relieved, and the service life of the rubber wheel is prolonged.
To sum up, the utility model relates to a suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism, entire system have simple structure, small-size, low-cost characteristics. The abrasion of rubber wheels of the suspension type monorail train is relieved, the power consumption of system operation is reduced, and the performance of the suspension type monorail train is effectively improved.
Claims (2)
1. The utility model provides a suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism, comprises suspension type track case roof beam and the bogie of moving on track case roof beam track through the rubber tyer on it and the train automobile body that hangs on the bogie, its characterized in that is provided with electromagnetism permanent magnetism hybrid and subtracts heavy mechanism between case roof beam track inboard and bogie: a weight reducing rail (101) made of a high-magnetic-flux material is arranged at the top of the inner side of the box girder rail, two weight reducing electromagnets and a permanent magnet (104) arranged between the two weight reducing electromagnets are arranged at the position, opposite to the weight reducing rail, of the top of the bogie, and form electromagnetic coupling with the weight reducing rail (101); a weight reducing controller (105) for controlling the working current of each weight reducing electromagnet is also arranged on the bogie; and a distance sensor (107) for monitoring the distance between the upper surface of the weight-reducing electromagnet and the weight-reducing rail (101) and a speed sensor (106) for monitoring the relative running speed of the bogie and transmitting signals to the weight-reducing controller (105) are further arranged on the bogie.
2. The suspended monorail train system with an electromagnetic-permanent magnet hybrid weight reduction mechanism of claim 1, wherein the weight reduction rail (101) is flat.
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| CN201920906463.2U CN210391119U (en) | 2019-06-17 | 2019-06-17 | Suspension type monorail train system with electromagnetism permanent magnetism hybrid subtracts heavy mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110182227A (en) * | 2019-06-17 | 2019-08-30 | 山西中海威轨道交通工程有限公司 | A kind of suspension monorail system with the hybrid loss of weight mechanism of electromagnet and permanent magnet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110182227A (en) * | 2019-06-17 | 2019-08-30 | 山西中海威轨道交通工程有限公司 | A kind of suspension monorail system with the hybrid loss of weight mechanism of electromagnet and permanent magnet |
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