Magnetic levitation track engineering vehicle bogie and magnetic levitation track engineering vehicle

Abstract

The application provides a maglev track engineering vehicle bogie and a maglev track engineering vehicle. The maglev track engineering vehicle bogie comprises at least one wheeled driving bogie and at least one linear motor bogie, and the wheeled driving bogie and the linear motor bogie are both used for connecting a vehicle body. The linear motor bogie comprises a lifting device, and the lifting device is telescopic relative to the vehicle body, so that the linear motor bogie contacts or separates from a track. Through the above structure, when it is rainy or snowy, the lifting device can make the linear motor bogie contact the track, and the wheeled driving bogie and the linear motor bogie jointly provide traction, so that the size of the provided traction is improved, and the normal operation of the maglev track engineering vehicle on the maglev track in rainy or snowy days is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail vehicle manufacturing, in particular to a maglev track engineering vehicle bogie and a maglev track engineering vehicle. BACKGROUND

[0002] The maglev track engineering vehicle is a vehicle that can run on a maglev track and has functions of bearing, driving, guiding and braking, and is mainly used for daily detection and patrol of the maglev track and emergency rescue and traction of the train. With the development of maglev track transportation, the design of the maglev line is increasingly developing towards large slope, small turning radius and compound curve line type, so as to reduce the line cost of the whole project. In addition, the maglev line is gradually developing from the original medium-low speed maglev line to the medium speed maglev line, and the train operation speed is getting higher and higher, and the one-way operation mileage is getting longer and longer. Therefore, the requirements for the maglev track engineering vehicle are getting higher and higher.

[0003] In the related art, the maglev track engineering vehicle mainly adopts a wheeled driving bogie, and relies on the adhesion force between the rubber of the rubber wheel and the track to drive the whole vehicle to run. The wheel needs to bear the load weight of the whole vehicle, and needs to have a high hardness. However, with the increase of the hardness, the adhesion coefficient between the wheel and the track will decrease accordingly, especially in rainy and snowy days, the adhesion coefficient between the wheel and the track is too small, so that the traction force provided by the bogie is small, and the maglev track engineering vehicle cannot normally run on the maglev line in rainy and snowy days. SUMMARY

[0004] In order to overcome the above-mentioned defects in the related art, the purpose of the present application is to provide a maglev track engineering vehicle bogie and a maglev track engineering vehicle, which can improve the traction force provided by the maglev track engineering vehicle bogie and ensure the normal operation of the maglev track engineering vehicle on the maglev line in rainy and snowy days.

[0005] In one aspect, the present application provides a maglev track engineering vehicle bogie, comprising at least one wheeled driving bogie and at least one linear motor bogie, wherein the wheeled driving bogie and the linear motor bogie are both used for connecting a vehicle body.

[0006] The linear motor bogie comprises a lifting device, and the lifting device is telescopic relative to the vehicle body, so as to make the linear motor bogie contact or separate from the track.

[0007] In one possible implementation, the linear motor bogie comprises two oppositely arranged cross beams and two oppositely arranged longitudinal beams, and the two longitudinal beams are located between the two cross beams; and the lifting device is arranged on the cross beam.

[0008] In a possible implementation, the lifting device comprises a telescopic oil cylinder, a telescopic oil cylinder mounting base and a telescopic oil cylinder mounting seat, two ends of the telescopic oil cylinder are hingedly connected with the telescopic oil cylinder mounting base and the telescopic oil cylinder mounting seat respectively, the telescopic oil cylinder mounting base is used for fixedly connecting with the vehicle body, and the telescopic oil cylinder mounting seat is fixedly connected with the cross beam.

[0009] In a possible implementation, four lifting devices are arranged, two lifting devices are arranged on each of the cross beams, the lifting devices on the two cross beams correspond to each other, and the four lifting devices are located between the two longitudinal beams.

[0010] In a possible implementation, a linear motor is further arranged below the longitudinal beam, and the linear motor corresponds to an inductive panel on the track.

[0011] In a possible implementation, a guide device is further connected to the two ends of the cross beam, the guide device is located outside the track and abuts against the track.

[0012] In a possible implementation, the guide device comprises a guide frame and a guide wheel, the guide frame is fixedly connected with the end of the cross beam, and the guide wheel is arranged on the guide frame and abuts against the track.

[0013] In a possible implementation, a traction rod is further arranged on the longitudinal beam, the traction rod is fixedly connected with the vehicle body through a traction rod mounting base, and the traction rod is fixedly connected with the longitudinal beam through a traction rod mounting seat.

[0014] In a possible implementation, two wheel drive bogies and two linear motor bogies are included, the two wheel drive bogies are located at two ends of the vehicle body respectively, and the two linear motor bogies are located between the two wheel drive bogies.

[0015] In another aspect, the application provides a maglev track engineering vehicle, comprising a vehicle body, and a maglev track engineering vehicle bogie as any of the above is arranged below the vehicle body.

[0016] The application provides a maglev track engineering vehicle bogie and a maglev track engineering vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0018] Figure 1 A structure diagram of the maglev track engineering vehicle provided by an embodiment of the application is shown in the figure.

[0019] Figure 2 A structure diagram of the linear motor bogie provided by an embodiment of the application is shown in the figure.

[0020] Reference signs:

[0021] 10 - vehicle body;

[0022] 20 - track; 21 - induction panel;

[0023] 100 - linear motor bogie; 101 - cross beam; 102 - longitudinal beam;

[0024] 110 - lifting device; 111 - telescopic oil cylinder; 112 - telescopic oil cylinder mounting base; 113 - telescopic oil cylinder mounting seat;

[0025] 120 - linear motor;

[0026] 130 - guide device; 131 - guide frame; 132 - guide wheel;

[0027] 140 - traction rod; 141 - traction rod mounting base; 142 - traction rod mounting seat;

[0028] 200 - wheeled drive bogie. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application.

[0030] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative labor fall within the scope of the present application. The embodiments and features in the embodiments below can be combined with each other without conflict.

[0031] As described in the background, the related art magnetic levitation track engineering vehicle mainly adopts a wheel type driving bogie, and relies on the adhesion force between the rubber of the rubber wheel and the track to drive the whole vehicle to walk. At present, the measured adhesion coefficient of the F track skid surface of the magnetic levitation line is less than 0.08. For a magnetic levitation track engineering vehicle adopting a wheel type driving bogie, the maximum adhesion traction force it can provide in rainy and snowy days is 7.84kN, and the resistance it receives on a 70‰ slope is 8.86kN. Obviously, the vehicle relying on adhesion power cannot drive itself to run on a 70‰ slope, which cannot meet the demand of the magnetic levitation track engineering vehicle. In addition, the related art also proposes a scheme of adopting a linear motor bogie. The stator of the linear motor is arranged below the bogie and is opposite to the aluminum induction plate on the magnetic levitation line. However, on the one hand, the efficiency of the linear motor is low, only 70% of that of the ordinary motor; on the other hand, the winding mode of the linear motor leads to a large required width. For the existing 220mm induction width of the medium and low speed magnetic levitation line, the total width of the existing linear motor reaches 420mm. However, the total width of the track section of the existing magnetic levitation line is only 340mm. If the stator width of the linear motor is designed to be within the range of 220mm, the wheels on the bogie will have no arrangement space. Therefore, in this technology, the stator width of the linear motor needs to be reduced to the total width of the linear motor within the range of 220mm, so as to realize the arrangement of the linear motor on the bogie. The disadvantage of this technology is that the output traction force of the linear motor is small. The existing technology adopts a linear motor with a stator width of 220mm and a length of 2028mm, which provides a traction force of 350kg. Therefore, in order to meet the demand of providing a traction force of 120kN, the length of the whole vehicle needs to be 50m, and the total cost of the vehicle will greatly increase.

[0032] In summary, the low adhesion coefficient between the wheels and the track in rainy or icy conditions results in insufficient traction force, preventing the maglev train from operating normally on maglev lines in such weather. Furthermore, bogies using linear motors have lower overall efficiency and higher cost. Even with linear motors alone, the traction force per unit length is relatively small, making it impossible for the maglev train to operate normally on maglev lines in rainy or icy conditions.

[0033] In view of this, the embodiments of this application aim to provide a bogie for a maglev track engineering vehicle and a maglev track engineering vehicle, including at least one wheel-driven bogie and at least one linear motor bogie, both of which are used to connect to the vehicle body; the linear motor bogie includes a lifting device, which can extend and retract relative to the vehicle body to allow the linear motor bogie to contact or detach from the track. With the above structure, in rainy or snowy weather, the lifting device can bring the linear motor bogie into contact with the track, and the wheel-driven bogie and the linear motor bogie can jointly provide traction, thereby increasing the available traction and ensuring the normal operation of the maglev track engineering vehicle on the maglev line in rainy or snowy weather.

[0034] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can gain a more detailed understanding of the contents of this application.

[0035] Figure 1 A simplified structural diagram of a maglev track engineering vehicle provided in one embodiment of this application; Figure 2 A simplified structural diagram of a linear motor bogie provided in an embodiment of this application.

[0036] Please refer to Figures 1-2 This embodiment provides a bogie for a maglev track engineering vehicle, including at least one linear motor bogie 100 and at least one wheel-driven bogie 200. Both the wheel-driven bogie 200 and the linear motor bogie 100 are used to connect to the vehicle body 10. The wheel-driven bogie 200 can adopt existing structural forms in the prior art, mainly including components such as a frame, drive shaft, wheels, and guiding devices. Since no improvements are made, this embodiment will not describe it further.

[0037] The linear motor bogie 100 includes a lifting device 110, which is telescopic relative to the vehicle body 10 to allow the linear motor bogie 100 to contact or detach from the track 20. When the linear motor bogie 100 is in contact with the track 20, the maglev track engineering vehicle bogie is composed of both the linear motor bogie 100 and the wheel-driven bogie 200, which together provide traction and increase the available traction force. When the linear motor bogie 100 detaches from the track 20, the maglev track engineering vehicle bogie is composed solely of the wheel-driven bogie 200 to reduce operating costs.

[0038] As described above, in rainy or snowy weather, this embodiment can use the lifting device 110 to make the linear motor bogie 100 contact the track 20, and use the wheel drive bogie 200 and the linear motor bogie 100 to provide traction, thereby increasing the amount of traction that can be provided and ensuring the normal operation of the maglev track engineering vehicle on the maglev line in rainy or snowy weather.

[0039] When the maglev track engineering vehicle is running in normal weather conditions, the linear motor bogie 100 can be detached from the track 20 by the lifting device 110, and the wheel-driven bogie 200 can be driven independently, which helps to reduce operating costs.

[0040] In one possible embodiment, such as Figure 2 As shown, the linear motor bogie 100 of this embodiment includes two opposing crossbeams 101 and two opposing longitudinal beams 102, with the two longitudinal beams 102 located between the two crossbeams 101. Specifically, the two longitudinal beams 102 extend along the length direction of the vehicle body 10, and are parallel and opposite to each other; the two crossbeams 101 extend along the width direction of the vehicle body 10, and the two longitudinal beams 102 can be parallel and opposite to each other between the two crossbeams 101, with both ends of each longitudinal beam 102 fixedly connected to the crossbeam 101. The longitudinal beams 102 and the crossbeams 101 can be connected and fixed by welding. In this embodiment, a lifting device 110 is provided on the crossbeam 101, and the number of lifting devices 110 can be set as needed.

[0041] Further, the lifting device 110 of the embodiment can include a telescopic oil cylinder 111, a telescopic oil cylinder mounting base 112 and a telescopic oil cylinder mounting seat 113, both ends of the telescopic oil cylinder 111 are hinged with the telescopic oil cylinder mounting base 112 and the telescopic oil cylinder mounting seat 113 respectively, the telescopic oil cylinder mounting base 112 is used for fixedly connected with the vehicle body 10, and the telescopic oil cylinder mounting seat 113 is fixedly connected with the cross beam 101. In the embodiment, the telescopic oil cylinder 111 can be a hydraulic cylinder or an air cylinder, for example, and can be connected into a hydraulic system or an air pressure system and be elongated or shortened in response to a corresponding control signal. The telescopic oil cylinder 111 can be hinged with the telescopic oil cylinder mounting base 112 and the telescopic oil cylinder mounting seat 113 by using a pin shaft or the like. The telescopic oil cylinder mounting base 112 can be provided with a flange plate and be connected and fixed with the vehicle body 10 by using bolts or the like fasteners; similarly, the telescopic oil cylinder mounting seat 113 can also be provided with a flange plate and be fixedly connected with the cross beam 101 by using bolts or the like fasteners.

[0042] In a preferred embodiment, the lifting device 110 of the embodiment is provided with four, two of which are arranged on each cross beam 101, the lifting devices 110 on the two cross beams 101 correspond to each other one by one, and the four lifting devices 110 are located between the two longitudinal beams 102, so that stable acting force can be provided for the vehicle body 10 during lifting, and good balance of the vehicle body 10 is ensured.

[0043] Please continue to refer to Figure 2 In the embodiment, a linear motor 120 is further arranged below the longitudinal beam 102, the linear motor 120 of the embodiment adopts a modular design, and the linear motor 120 can be connected on the longitudinal beam 102 in a detachable manner, so that the model of the linear motor 120 can be replaced according to different working conditions to provide appropriate traction. Alternatively, a plurality of linear motors 120 can be installed below the longitudinal beam 102 to increase the size of the traction that can be provided. The linear motor 120 corresponds to the induction panel 21 on the track 20, when it is rainy or snowy, the lifting device 110 can make the linear motor bogie 100 contact with the track 20, and the induction panel 21 can be electrified at the same time, so that driving force is generated between the linear motor 120 and the induction panel 21, thereby the traction force is provided by the wheeled drive bogie 200 and the linear motor bogie 100 together, the size of the traction that can be provided is increased, and the normal operation of the maglev track engineering vehicle on the maglev line in rainy or snowy days is ensured.

[0044] In order to enable the maglev track engineering vehicle to adapt to the curve, the guide device 130 is further connected to the both ends of the cross beam 101, and the guide device 130 is located outside the track 20 and abuts against the track 20. When the maglev track engineering vehicle turns, the guide device 130 at the both ends of the cross beam 101 abuts against the track 20, so that the force can be applied to the track 20, to ensure that the linear motor bogie 100 does not deviate from the track and realizes normal turning.

[0045] Specifically, the guide device 130 of the embodiment includes a guide frame 131 and a guide wheel 132, the guide frame 131 is fixedly connected to the end of the cross beam 101, and the guide wheel 132 is arranged on the guide frame 131 and abuts against the track 20. In the embodiment, the guide wheel 132 abuts against the track 20, so that the friction between the guide device 130 and the track 20 can be reduced, and the service life of the guide device 130 is improved.

[0046] Please continue to refer to Figure 2 The longitudinal beam 102 of the embodiment is further provided with a traction rod 140, the traction rod 140 is fixedly connected to the vehicle body 10 through a traction rod mounting base 141, and the traction rod 140 is fixedly connected to the longitudinal beam 102 through a traction rod mounting seat 142, so that the vehicle body is driven to move together through the traction rod 140, and the output of the traction force is realized. In the embodiment, a flange plate can be arranged on the traction rod mounting base 141, and the vehicle body 10 is connected and fixed through fasteners such as bolts; similarly, a flange plate can also be arranged on the traction rod mounting seat 142, and the longitudinal beam 102 is fixedly connected through fasteners such as bolts.

[0047] Please continue to refer to Figure 1 In a preferred embodiment, the maglev track engineering vehicle bogie of the embodiment includes two wheeled drive bogies 200 and two linear motor bogies 100, the two wheeled drive bogies 200 are respectively located at the both ends of the vehicle body 10, and the two linear motor bogies 100 are located between the two wheeled drive bogies 200. The above structure can ensure the balance of the overall mass distribution of the maglev track engineering vehicle, and is beneficial to ensure the normal operation of the train.

[0048] In other possible embodiments, the interface of the linear motor drive module can be installed on the wheeled drive bogie 200, and the linear motor is integrated on the wheeled drive bogie 200, so as to improve the traction force that can be provided by the wheeled drive bogie 200.

[0049] The embodiment further provides a maglev track engineering vehicle, which includes a vehicle body 10, and the lower portion of the vehicle body 10 is provided with the maglev track engineering vehicle bogie according to the above embodiment.

[0050] Preferably, the lower part of the vehicle body 10 of the embodiment is provided with two linear motor bogies 100 and two wheel drive bogies 200, the two wheel drive bogies 200 are respectively located at the two ends of the vehicle body 10, and the two linear motor bogies 100 are located between the two wheel drive bogies 200. The linear motor bogie 100 and the wheel drive bogie 200 can be connected with the vehicle body 10 through traction devices, suspension devices and the like to provide traction to the vehicle body 10 and bear the buffer force applied by the vehicle body 10. The specific connection structure can be achieved by fastening members such as flanges and bolts.

[0051] The maglev track engineering vehicle of the embodiment can make the linear motor bogie 100 contact with the track 20 through the lifting device 110 when it encounters rainy days and snowy days, and utilize the wheel drive bogie 200 and the linear motor bogie 100 to jointly provide traction, thereby improving the size of the available traction and ensuring the normal operation of the maglev track engineering vehicle on the maglev line in rainy days and snowy days.

[0052] When the maglev track engineering vehicle travels in normal weather, the linear motor bogie 100 can be separated from the track 20 through the lifting device 110, and the wheel drive bogie 200 can be used for traction driving alone, which is conducive to reducing the operation cost.

[0053] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium; they can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that in the description of the present application, the terms "first", "second", etc. are used only to facilitate the description of different components, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0056] The embodiments or implementations in the present application are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0057] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A maglev track maintenance vehicle bogie, characterized in that, The magnetic levitation track engineering vehicle bogie comprises at least one wheel drive bogie and at least one linear motor bogie, and the wheel drive bogie and the linear motor bogie are both used for connecting a vehicle body. The linear motor bogie comprises lifting devices, and the lifting devices are telescopic relative to the vehicle body so as to make the linear motor bogie contact or separate from the track. The linear motor bogie comprises two oppositely arranged cross beams and two oppositely arranged longitudinal beams, and the two longitudinal beams are located between the two cross beams; the lifting devices are arranged on the cross beams. The lifting devices comprise telescopic oil cylinders, telescopic oil cylinder mounting bases and telescopic oil cylinder mounting seats, two ends of the telescopic oil cylinders are respectively hinged to the telescopic oil cylinder mounting bases and the telescopic oil cylinder mounting seats, the telescopic oil cylinder mounting bases are used for fixedly connecting with the vehicle body, and the telescopic oil cylinder mounting seats are fixedly connected with the cross beams.

2. The maglev railcar bogie of claim 1, wherein, The lifting devices are provided in four, two lifting devices are arranged on each cross beam, the lifting devices on the two cross beams are in one-to-one correspondence, and the four lifting devices are all located between the two longitudinal beams.

3. The maglev railcar bogie of claim 1, wherein, The longitudinal beams are further provided with linear motors below, and the linear motors correspond to induction panels on the track.

4. The maglev railcar bogie of claim 3, wherein, The cross beams are further connected with guiding devices at two ends, the guiding devices are located outside the track and abut against the track.

5. The maglev railcar bogie of claim 4, wherein, The guiding devices comprise guiding frames and guiding wheels, the guiding frames are fixedly connected with the end portions of the cross beams, and the guiding wheels are arranged on the guiding frames and abut against the track.

6. The maglev railcar bogie of claim 1, wherein, The longitudinal beams are further provided with traction rods, the traction rods are fixedly connected with the vehicle body through traction rod mounting bases, and the traction rods are fixedly connected with the longitudinal beams through traction rod mounting seats.

7. The maglev railcar bogie of claim 1, wherein, The magnetic levitation track engineering vehicle comprises two wheel drive bogies and two linear motor bogies, the two wheel drive bogies are respectively located at two ends of the vehicle body, and the two linear motor bogies are both located between the two wheel drive bogies.

8. A maglev track maintenance vehicle characterized by, The magnetic levitation track engineering vehicle comprises a vehicle body, and the vehicle body is provided below with the magnetic levitation track engineering vehicle bogie according to any one of claims 1-7.

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