CN210390799U - Single-rail electromagnetic suspension mechanism of suspension type magnetic-levitation train capable of rising and falling - Google Patents
Single-rail electromagnetic suspension mechanism of suspension type magnetic-levitation train capable of rising and falling Download PDFInfo
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- CN210390799U CN210390799U CN201920910158.0U CN201920910158U CN210390799U CN 210390799 U CN210390799 U CN 210390799U CN 201920910158 U CN201920910158 U CN 201920910158U CN 210390799 U CN210390799 U CN 210390799U
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Abstract
The utility model discloses a suspension type maglev train single track electromagnetic suspension mechanism that can rise and fall, including suspension part (100), walk line part (300) and couple and walk line part (300) and suspension part (100) between traction element (200). Two suspension electromagnets forming electromagnetic coupling with the suspension rail (101) are arranged on the suspension frame, and a clamping block group (110) is arranged at the lower part of the suspension frame. The utility model effectively reduces the positive pressure between the rubber wheel and the track in the running process, and relieves the problem of rubber wheel abrasion; the effective friction of starting and braking is adjusted by utilizing different stress states of the rubber wheel, and the current input into the suspension electromagnet is controlled according to the distance value provided by the suspension sensor and the speed value provided by the speed sensor, so that the functions of floating, landing, weight reduction, fault emergency and the like are realized. The system has the characteristics of simple structure, low manufacturing cost, low operation energy consumption, small maintenance workload, high reliability and the like.
Description
Technical Field
The utility model relates to a track traffic technical field, in particular to suspension type maglev train single track electromagnetic suspension mechanism that can rise and fall.
Background
The suspension type maglev 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 for sightseeing and traffic wins 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 maglev 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. The existing medium-low speed maglev train adopts a linear motor to drive and run, and the linear motor has large working clearance and edge effect, so that the energy consumption is high. No matter adopt the rubber tyer or adopt linear electric motor, all need effectively to fall and make an uproar, adapt to urban traffic.
In view of the above, how to better utilize the suspension technology to effectively adjust the positive pressure between the rubber wheel and the track in the running process, and adjust the effective friction of starting and braking by utilizing different stress states of the rubber wheel while relieving the abrasion of the rubber wheel; the rubber wheel driven running replaces the linear motor driven running of the traditional magnetic suspension train, so that the energy consumption is effectively reduced, and the method is a brand new and beneficial attempt.
At present, researches on suspension type monorail trains and maglev trains are carried out in Germany, Japan, America and China, the planning and construction of projects are already carried out in cities such as Beijing, Shanghai, Changsha, Shenzhen Qingyuan, Guizhou Huangguoshu, Chengdu, Tianjin coastal new areas and the like in China, and the research on the suspension type trains with optimized standards is urgent and beneficial to diversified transportation and future traffic mode exploration.
SUMMERY OF THE UTILITY MODEL
In view of prior art not enough more than, the utility model aims at providing a suspension type maglev train's that can rise and fall single track electromagnetism suspension mechanism makes it can decide whether to float according to the condition of train speed, can effectively reduce the rubber tyer burden, extension rubber tyer life utilizes the different stress state of rubber tyer to adjust the effective friction that starts and brake, effectively reduces the operation energy consumption.
The technical scheme of the utility model as follows:
a single-rail electromagnetic suspension mechanism of a suspension type magnetic-levitation train capable of lifting comprises a suspension component 100, a walking component 300 and a traction component 200 connected between the walking component 300 and the suspension component 100. The suspension component 100 comprises a suspension rail 101 arranged in the middle of the upper surface in the track box girder and a suspension rack 108 arranged at the lower part of the suspension rail 101, two suspension electromagnets forming electromagnetic coupling with the suspension rail 101 are arranged on the suspension rack, and a clamping block group 110 is arranged at the lower part of the suspension rack; the rubber wheel set 301 of the running component 300 is mounted on a running frame 302, and functions with two rails at the lower part of a rail box girder of a suspension type magnetic suspension train system to realize friction running, and the upper part of the running frame is provided with a clamping groove set 304 which can be vertically clamped with the clamping block set 110.
Further, suspension guide wheel sets 111 capable of rolling along the inner side wall of the track box girder are arranged on two sides of the middle of the suspension frame 108.
Further, the running frame 302 is provided with a running guide wheel set 303.
Further, the suspension electromagnet is provided with a suspension controller for controlling the current intensity of the suspension electromagnet and a suspension sensor for monitoring the suspension distance of the suspension electromagnet; the suspension controller controls the current input into the suspension electromagnet according to the suspension distance value provided by the suspension sensor and the train speed value provided by the speed sensor.
Thus, a single suspension rail is fixed at the center of the upper surface in a track box girder of the suspension type maglev train system, and two suspension electromagnets are respectively arranged at two sides of the upper part of the suspension frame and correspond to the suspension rail; the suspension controller, the suspension sensor and the speed sensor are all installed on the suspension frame, the clamping block group is installed on the lower portion of the suspension frame, the position of the clamping block group corresponds to that of a clamping groove group on a walking part, and the suspension guide wheel groups are installed on two sides of the middle of the suspension frame and play roles in guiding and preventing the suspension frame from turning over with the surface effects of two sides in a track box girder of a suspension type maglev train system. The traction rod is connected with the suspension frame through a bearing and is connected with a walking frame on a walking part through a ball bearing. The rubber wheel set is arranged on the walking frame and acts with two rails at the lower part of a rail box girder of the suspension type magnetic suspension train system to realize friction walking, and the walking guide wheel set is arranged on the walking frame and acts with two side surfaces in the rail box girder of the suspension type magnetic suspension train system to play a guide role. The suspension rail is an independent rail arranged along the line, and is convenient to manufacture, install and construct.
The suspension frame in the suspension part is connected with the vehicle body of the suspension type maglev train system through secondary suspension, the suspension part floats to drive the vehicle body to float together, and the suspension part falls on the walking part when falling. The suspension component can complete three functions of weight reduction, floating and landing according to the running speed of the train, and can fall on the running component when the suspension component fails, and the running component executes failure emergency running. The walking component drives the suspension component to run together through the traction component when running.
The levitation controller in the levitation component controls the current input into the levitation electromagnet according to the levitation distance value provided by the levitation sensor and the train speed value provided by the speed sensor.
The suspension component undertakes the task of realizing suspension, the suspension electromagnet and the suspension rail form a magnetic circuit, when the solenoid of the electromagnet is electrified, a magnetic field is generated in the magnetic circuit, so that electromagnetic attraction is generated, when the electromagnetic attraction of the suspension rail to the suspension component is smaller than the weight of the suspension component and the vehicle body (and the load thereof), the suspension component cannot float, and at the moment, the weight reduction function can be realized; when the electromagnetic attraction force of the suspension rail to the suspension component is greater than or equal to the weight of the suspension component and the vehicle body (and the load thereof), the suspension component can realize the floating function. In order to realize stable suspension at a certain position, the current in the electromagnet coil needs to be controlled at any time, so that the electromagnetic attraction of the suspension rail to the suspension component is always just equal to the weight of the suspension component and the vehicle body (and the load thereof), and the function of controlling the current is realized by the suspension controller. The suspension controller controls the current according to the suspension distance value provided by the suspension sensor on one hand, and controls the current according to the train running speed value provided by the speed sensor on the other hand.
The utility model discloses the suspension type maglev train that realizes mainly has four kinds of operating modes, start operating mode, operating condition, braking operating mode, trouble operating mode.
Under the starting condition, the speed of the train is static or low, the friction force between rubber wheels in the walking component and the track is required to drive the speed of the train to increase, and the large friction force needs large positive pressure, so that under the working condition, the suspension component falls on the walking component, and the rubber wheel group of the walking component bears the large positive pressure.
After the speed of the train reaches a certain degree, the maglev train works under the operation condition, the suspension part and the train body float, the walking part only bears the self weight, the friction resistance is greatly reduced, and the abrasion of rubber wheels is effectively relieved. When the train is in a braking working condition, the suspension part and the train body need to be descended, so that the friction resistance is increased, and the train is ensured to be braked.
When the suspension component fails and cannot work normally, the suspension component can fall on the walking component, and the walking component continues to complete the operation work under the failure condition.
Under any working condition, as long as the suspension component falls on the walking component, the suspension component can realize the weight reduction function, namely, certain current is passed through the electromagnet coil to generate upward electromagnetic attraction force, and the pressure on the walking component is reduced. The weight reduction needs to comprehensively consider three factors of friction force required by acceleration, friction resistance in operation and rubber wheel abrasion.
Adopt the utility model discloses a structure both can have limited the problem of alleviating suspension type monorail train rubber tyer wearing and tearing, also can avoid traditional suspension train to adopt linear electric motor drive to lead to the problem that the energy consumption is big, can also continue the operation under the condition of suspension trouble, can effectively improve suspension type monorail maglev train's performance.
Drawings
Fig. 1 is a transverse cross-sectional view of the overall structure of fig. 2.
Fig. 2 is a side view of the overall structure of the system.
Fig. 3 is a schematic view of the levitation member floating and landing. In fig. 3, a is floating, and in fig. 3 b is falling.
Detailed Description
The utility model relates to a suspension type maglev train single track electromagnetism suspension mechanism that can rise and fall can serve the scenic spot sightseeing, the track traffic operation field under the traffic such as little volume, the low speed condition between building.
Referring to fig. 1, 2 and 3, the system includes a suspension member 100, a traction member 200, and a running member 300. The suspension component 100 comprises a suspension rail 101, a suspension electromagnet 102, a suspension electromagnet 103, a suspension controller 104, a suspension controller 105, a suspension sensor 106, a suspension sensor 107, a suspension frame 108, a speed sensor 109, a clamping block group 110 and a suspension guide wheel group 111; the traction component 200 comprises a traction rod 201, a bearing 202 and a ball bearing 203; the running component 300 comprises a rubber wheel set 301, a running frame 302, a running guide wheel set 303 and a clamping groove set 304. The suspension rail 101 is fixed at the center of the upper surface in a track box girder of the suspension type maglev train system, and the suspension electromagnets (102 and 103) are respectively installed at two sides of the upper part of the suspension frame 108 and correspond to the suspension rail 101; the suspension controllers (104 and 105), the suspension sensors (106 and 107) and the speed sensor 109 are all installed on the suspension frame 108, the clamping block group 110 is installed on the lower portion of the suspension frame 108, the position of the clamping block group corresponds to that of the clamping groove group 304 on the walking part 300, the suspension guide wheel groups 111 are installed on two sides of the middle portion of the suspension frame 108, and the suspension guide wheel groups and the surfaces of two sides in a track box girder of the suspension type maglev train system play roles in guiding and preventing the suspension frame from turning over. The traction rod 201 is connected with the suspension bracket 108 through a bearing 202, and is connected with a walking frame 302 on a walking component 300 through a ball bearing 201. The rubber wheel set 301 is arranged on the walking frame 302 and can realize friction walking with two rails at the lower part of a rail box girder of the suspension type magnetic suspension train system, and the walking guide wheel set 303 is arranged on the walking frame 302 and can play a guide role with the surfaces of two sides in the rail box girder of the suspension type magnetic suspension train system.
The suspension frame 108 in the suspension component 100 is connected with the vehicle body of the suspension type maglev train system through secondary suspension, the suspension component 100 drives the vehicle body to keep suspension together after floating, and the suspension component falls on the walking component 300 when falling. The walking part 300 drives the suspension part 100 to run together through the traction part 200 when running.
The levitation controller 104 in the levitation component 100 controls the amount of current input to the levitation electromagnet 102 based on the levitation distance value provided by the levitation sensor 106 and the train speed value provided by the speed sensor 109. Levitation controller 105 controls the amount of current input to levitation electromagnet 103 based on the value of the levitation distance provided by levitation sensor 107 and the value of the train speed provided by speed sensor 109.
As shown in fig. 2 and fig. 3, a further technical solution is that the suspension component 100 takes over the task of achieving suspension, the suspension electromagnets (102 and 103) and the suspension rail 101 form a magnetic circuit, when the coil of the electromagnet is energized, a magnetic field is generated in the magnetic circuit, so that an electromagnetic attraction force is generated, when the electromagnetic attraction force of the suspension rail 101 to the suspension component 100 is smaller than the weight of the suspension component 100 and the vehicle body (and its load), the suspension component 100 cannot float, and at this time, a weight reduction function can be achieved; when the electromagnetic attraction force of the suspension rail 101 to the suspension component 100 is greater than or equal to the weight of the suspension component 100 and the vehicle body (and its load), the suspension component 100 can perform a levitation function. In order to realize stable suspension at a certain position, the current in the electromagnet coil needs to be controlled at any time, so that the electromagnetic attraction of the suspension rail 101 to the suspension component 100 is always just equal to the weight of the suspension component 100 and the vehicle body (and the load thereof), and the function of controlling the current is realized by the suspension controllers (104 and 105). When the suspension component 100 floats, the bearing 202 in the traction component 200 floats, and drives the traction rod 201 to rotate. The traction component 200 can transmit the driving force from the walking component 300 to push the suspension component 100 to walk together. When the suspension component 100 descends, the clamping block group 110 of the suspension component just falls into the clamping groove group 304 of the walking component.
As an embodiment, the cross section of the suspension rail is rectangular, the cross section dimension is 300mm × 25mm, the length is 1000mm, the cross section dimension of the corresponding weight-reducing electromagnet is 300mm, the width is 125mm, the magnetic poles on both sides are 25mm, the width of the middle magnetic pole is 50mm, the length of a single electromagnet is 1000mm, the materials of the suspension rail and the suspension iron are both Q235, the cross section dimension of the electromagnet coil filled copper wire is 100mm × 100mm, the filling rate of the copper wire in the electromagnet is selected to be 60%, the landing air gap is selected to be 15mm, the suspension air gap is 8mm, the currents passing through each square millimeter are respectively selected to be 0.4A, 0.8A,1.2A and 1.6A, and the electromagnetic attraction force between the suspension electromagnet and the suspension rail and the corresponding speed and distance under the conditions of the currents are obtained through finite element simulation analysis.
As can be seen from the above table, the levitation electromagnet with the size can lift 1.7 tons of weight per meter of length, and as long as the total weight of the designed vehicle body, the load thereof and the levitation component is less than 1.7 tons, the levitation function can be realized, and if the size of the electromagnet is increased, a larger weight can be lifted.
From the above table, the degree of weight reduction can be controlled by controlling the magnitude of the current input to the levitation electromagnet coil according to the change condition of the speed, and under the condition of starting or braking, the current-off mode can be selected, so that the weight of the levitation part and the vehicle body is completely pressed on the walking part, and the starting or braking is convenient.
The 1.6A per square millimeter set in the above table is a conservative current in consideration of the heat dissipation condition, and can be increased to about 2A in the case of optimizing the heat dissipation structure. In addition, if the engineering quality control is good, the working distance can be reduced to below 8mm, so that the suction force is greater, and the maximum suspended weight is only a conservative value.
According to the analysis, the mode of single-rail electromagnetic suspension and landing is adopted, reasonable floating, landing and 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 maglev train single track electromagnetic suspension mechanism that can rise and fall can realize floating, descending, subtract function such as heavy, trouble emergency, and the suspension type maglev train that utilizes this method to realize has that the structure is succinct, and the cost is low, and the operation energy consumption is little, and it is little to maintain work load, characteristics such as reliability height.
Claims (3)
1. A single-rail electromagnetic suspension mechanism of a suspension type maglev train capable of rising and falling comprises a suspension component (100), a walking component (300) and a traction component (200) connected between the walking component (300) and the suspension component (100), and is characterized in that the suspension component (100) comprises a suspension rail (101) arranged in the middle of the upper surface in a track box girder and a suspension frame (108) arranged at the lower part of the suspension rail (101), two suspension electromagnets forming electromagnetic coupling with the suspension rail (101) are arranged on the suspension frame, and a clamping block group (110) is arranged at the lower part of the suspension frame; the rubber wheel set (301) of the walking part (300) is arranged on a walking frame (302) and acts with two rails at the lower part of a rail box girder of a suspension type magnetic suspension train system to realize friction walking, and the upper part of the walking frame (302) is provided with a clamping groove set (304) which can be vertically clamped with the clamping block set (110).
2. The monorail electromagnetic suspension mechanism of claim 1, wherein the suspension frame (108) is provided with suspension guide wheel sets (111) on both sides of the middle portion thereof for rolling along the inside walls of the box girders.
3. The monorail electromagnetic levitation mechanism of a liftable suspended magnetic-levitation train according to claim 1, wherein the running frame (302) is provided with running guide wheel sets (303).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920910158.0U CN210390799U (en) | 2019-06-17 | 2019-06-17 | Single-rail electromagnetic suspension mechanism of suspension type magnetic-levitation train capable of rising and falling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920910158.0U CN210390799U (en) | 2019-06-17 | 2019-06-17 | Single-rail electromagnetic suspension mechanism of suspension type magnetic-levitation train capable of rising and falling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110182055A (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 type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110182055A (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 type magnetic-levitation train single track electromagnetic suspension mechanism to rise and fall |
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