Straddle type monorail train bogie and straddle type monorail train

Abstract

The invention discloses a straddle type monorail train bogie and a straddle type monorail train. The straddle type monorail train bogie comprises a framework assembly, a walking wheel assembly, a driving system and a fixing assembly, the walking wheel assembly comprises walking wheels and wheel axles, the wheel axles, the driving system and the walking wheels are integrated into a whole, and the fixing assembly is arranged on the framework assembly; the driving system directly drives the walking wheels to rotate, a transmission system is omitted, and the overall mass of the bogie is reduced; the fixing assembly and the fixing beam of the framework assembly detachably clamp the wheel shaft, the driving system and the walking wheel, and the wheel shaft is located on the lower side of the fixing beam, so that under the condition that the fixing assembly is separated from the fixing beam, the wheel shaft can drive the driving system and the walking wheel to be synchronously separated from the framework assembly from the lower side of the fixing beam, the framework body does not need to be disassembled, and the operation is convenient. The walking wheel assembly and the driving system can be disassembled by disassembling the walking wheel assembly and the driving system, then the walking wheel is disassembled, the mode that the wheel is discharged downwards in the vertical direction is achieved, the walking wheel is disassembled without being disassembled and replaced, the wheel replacing time is saved, and the wheel replacing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of straddle-type monorail trains, and more specifically, to a straddle-type monorail train bogie and a straddle-type monorail train. Background Art

[0002] The straddle-type monorail is a strip-shaped beam on which the train straddles and travels. It has the advantages of low noise, small turning radius, strong climbing ability, low construction cost, and extremely flexible lines. It can adapt well to the natural conditions of mountain cities and other cities, providing convenience for people's lives. Since most monorails are built in mountain cities, the driving conditions are relatively complex, resulting in the actual service life of the monorail train running wheels being far lower than the designed service life, which will increase the frequency of running wheel replacement.

[0003] At present, the wheel-changing operation process of monorail trains is complicated. It is necessary to remove the bogie, cables, pipelines and other equipment from the train and arrange them in a certain order. After replacing the running wheels, it is necessary to reconnect and install the bogie, cables, pipelines and other equipment, and check whether the cables and pipelines are connected correctly and whether the connectors are secure. The separation and combination process of the bogie and the train takes a long time. This unpacking wheel-changing method makes the replacement of the running wheels complicated and time-consuming, thereby increasing the operating cost.

[0004] In summary, how to simplify the replacement of the running wheels to save wheel replacement time and improve wheel replacement efficiency is a problem that currently needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a straddle-type monorail train bogie and a straddle-type monorail train, which can simplify the replacement of running wheels, save wheel changing time, and improve wheel changing efficiency.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A straddle-type monorail train bogie comprises: a frame assembly, a running wheel assembly, a drive system and a fixed assembly; wherein the running wheel assembly comprises a running wheel and a wheel axle; the drive system, the running wheel and the wheel axle are integrated into one; the frame assembly comprises a fixed beam, and the wheel axle is located at the lower side of the fixed beam;

[0008] The fixing assembly has a first state and a second state. In the first state, the fixing assembly is fixedly connected to the fixing beam, the fixing assembly and the fixing beam clamp the wheel axle, and the fixing assembly and the wheel axle are both located at the lower side of the fixing beam; in the second state, the fixing assembly is separated from the fixing beam and releases the wheel axle, so that the wheel axle provided with the running wheel and the driving system is separated from the lower side of the fixing beam and the fixing beam.

[0009] In some embodiments, the drive system includes a permanent magnet motor, which includes a stator and a rotor, and the rotor is mounted on the stator; wherein the stator and the axle are an integrated structure; the running wheel is mounted on the rotor, and the running wheel is detachably fixedly connected to the rotor.

[0010] In some embodiments, the fixing assembly includes two pinching bodies, namely an upper pinching body and a lower pinching body, the upper pinching body is fixed to the fixing beam; in the first state, the upper pinching body and the lower pinching body are detachably fixedly connected, the axle is located between the upper pinching body and the lower pinching body and is clamped by the upper pinching body and the lower pinching body; in the second state, the lower pinching body is separated from the upper pinching body and releases the axle.

[0011] In some embodiments, the fixing assembly includes a pinching body; in the first state, the pinching body is detachably fixed to the fixing beam, and the axle is located between the pinching body and the fixing beam and clamped by the pinching body and the fixing beam; in the second state, the pinching body is separated from the fixing beam and releases the axle.

[0012] In some embodiments, the cross section of the end of the wheel axle is polygonal, the clamping body has a groove, the groove accommodates the end of the wheel axle, and the groove is clamped and matched with the end of the wheel axle.

[0013] In some embodiments, the end cross-section of the axle is a regular hexagon.

[0014] In some embodiments, a brake disc assembly is also included, which is arranged on the wheel axle and distributed on both sides of the running wheel; the frame assembly has a clearance space for the running wheel assembly, the drive system and the brake disc assembly to synchronously detach from the frame assembly from the fixed beam.

[0015] In some embodiments, the frame assembly includes a frame body and an auxiliary running wheel set;

[0016] The frame body comprises: fixed beams, vertical beams and horizontal beams which are perpendicular to each other, wherein the fixed beams are perpendicular to the wheel axle and are distributed at both ends of the wheel axle;

[0017] The vertical beam is fixedly connected to the fixed beam, and the vertical beam includes a first vertical beam distributed at both ends of the fixed beam, and a second vertical beam distributed in the middle of the fixed beam;

[0018] The cross beams are distributed at both ends of the fixed beam, and the two ends of the cross beams are respectively fixedly connected to the first vertical beams located at both ends of the fixed beam;

[0019] The auxiliary running wheel group includes: a guide wheel, a stabilizing wheel and an auxiliary wheel. The guide wheel is arranged at the bottom end of the first vertical beam, the stabilizing wheel is arranged at the bottom end of the second vertical beam located in the middle of the fixed beam, and the auxiliary wheel is arranged on the cross beam.

[0020] In some embodiments, the frame body also includes a middle cross beam, both ends of which are fixed to the second vertical beam, and the middle cross beam is provided with a center pin connected to the monorail train body, and air springs for supporting the body are provided on both sides of the center pin.

[0021] A straddle-type monorail train comprises the straddle-type monorail train bogie as described above.

[0022] In the straddle-type monorail train bogie provided by the present application, the wheel axle of the drive system and the running wheel assembly are integrated into one, so that the drive system directly drives the running wheel to rotate to realize the travel of the car body, saves the transmission system, reduces the overall mass of the bogie, and reduces the axial size; the fixed assembly and the fixed beam of the frame assembly can detachably clamp the wheel axle, the drive system and the running wheel, and the wheel axle is located on the lower side of the fixed beam. In this way, when the fixed assembly is separated from the fixed beam, the wheel axle can synchronously detach from the frame assembly from the lower side of the fixed beam with the drive system and the running wheel integrated with the wheel axle. The running wheel assembly and the drive system can be disassembled without disassembling the frame body, and then the running wheel can be disassembled. Within the limited axial space size, the running wheel does not need to move axially, and the wheel can be directly removed in the vertical direction, which realizes the disassembly of the running wheel without disassembling and implementing wheel changing, saving the time of wheel changing and improving the efficiency of wheel changing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 An axonometric view of the overall structure of a straddle-type monorail train bogie provided in an embodiment of the present application;

[0025] Figure 2 An axonometric view of a frame assembly of a straddle-type monorail train bogie provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the assembly of the drive system and the running wheel assembly provided in an embodiment of the present application;

[0027] Figure 4 for Figure 3 A cross-sectional view of

[0028] Figure 5 An axonometric diagram of a permanent magnet motor provided in an embodiment of the present application;

[0029] Figure 6 for Figure 5 A schematic diagram of the structure of the stator (axle) of the permanent magnet motor shown in ;

[0030] Figure 7 for Figure 5 A schematic structural diagram of a rotor of a permanent magnet motor shown in ;

[0031] Figure 8 An axonometric view of the running wheels in the straddle-type monorail train bogie provided in an embodiment of the present application;

[0032] Fig. 9 An axonometric view of a fixed component in a straddle-type monorail train bogie provided in an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 100 is a frame assembly, 101 is a fixed beam, 120 is a vertical beam, 102 is a first vertical beam, 103 is a second vertical beam, 104 is a cross beam, 105 is a middle cross beam, 106 is a guide wheel, 107 is a stabilizing wheel, 108 is an auxiliary wheel, 109 is a center pin, and 110 is an air spring;

[0035] 200 is a running wheel assembly, 201 is a running wheel, 202 is a wheel axle, and 203 is a bearing;

[0036] 300 is a driving system, 310 is a permanent magnet motor, 301 is a stator, 302 is a rotor, and 3021 is a rotor housing;

[0037] 400 is a fixing assembly, 410 is an upper pinch body, 420 is a lower pinch body, 401 is a groove, and 402 is a bolt;

[0038] 500 is a brake disc assembly. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be used as limitations on the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear indication to the contrary in the context.

[0041] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0042] The multiple involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the words "first", "second", etc. are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0043] The "parallel" and "perpendicular" involved in this application are "substantially parallel" and "substantially perpendicular" in actual operation. "Substantially parallel" can be understood as parallel with a certain error, and similarly, "substantially perpendicular" can be understood as perpendicular with a certain error.

[0044] like Figure 1 As shown, the straddle-type monorail train bogie provided in the embodiment of the present application includes: a frame assembly 100, a running wheel assembly 200, a drive system 300 and a fixing assembly 400, the running wheel assembly 200 includes a running wheel 201 and an axle 202, the drive system 300, the running wheel 201 and the axle 202 are integrated into one, the drive system 300 directly drives the running wheel 200 to realize the travel of the vehicle body, saving the transmission system, improving the transmission efficiency, reducing the axial size, and reducing the overall mass of the bogie.

[0045] The frame assembly 100 includes a fixed beam 101, a fixed component 400 is detachably fixedly connected to the fixed beam 101, the axle 202 is located at the lower side of the fixed beam 101, and the axle 202 is located between the fixed component 400 and the fixed beam 101. Since the drive system 300 is integrated on the axle 202, the axle 202, the drive system 300 and the running wheel 201 are all detachably fixedly connected to the fixed beam 101 through the fixed component 400.

[0046] The fixing assembly 400 has a first state and a second state. In the first state, the fixing assembly 400 is fixedly connected to the fixing beam 101, and the fixing assembly 400 and the fixing beam 101 clamp the wheel axle 202, and the fixing assembly 400 and the wheel axle 202 are both located at the lower side of the fixing beam 101; in the second state, the fixing assembly 400 is separated from the fixing beam 101 and releases the wheel axle 202, so that the wheel axle 202 provided with the running wheel 201 and the driving system 300 is separated from the lower side of the fixing beam 101 and the fixing beam 101. In this way, the running wheel assembly 200 and the driving system 300 can be disassembled from the lower side of the fixing beam 101 without disassembling the frame assembly 100, and then the running wheel 201 is disassembled. Within the limited axial space size, the running wheel 201 does not need to move axially, and can be directly removed in the vertical direction. The running wheel 201 can be disassembled and replaced without disassembling, which saves the time of wheel changing and improves the efficiency of wheel changing.

[0047] like Figure 1-Figure 2 As shown, there are two fixing components 400, which are clamped at both ends of the wheel axle 202 respectively, and the two fixing components 400 correspond to the fixed beam 101 one by one, thereby ensuring stable clamping of the wheel axle 202, so as to ensure stable clamping of the running wheel assembly 200 and the drive system 300.

[0048] like Figure 1 As shown, the straddle-type monorail train bogie provided in the embodiment of the present application also includes a brake disc assembly 500, which is arranged on the wheel axle 202 and distributed on both sides of the running wheel 201, so that the brake disc assembly 500, the drive system 300 and the running wheel assembly 200 are integrated into an integrated body, further reducing the axial size of the bogie, and the frame assembly 100 has an accommodating space for accommodating the integrated body, and a makeshift space for the integrated body to detach from the frame assembly 100 from the fixed beam 101. In this way, when the fixing component 400 is separated from the fixed beam 101, the integrated body is detached from the frame assembly 100 from the lower side of the fixed beam 101 without axial movement, making the disassembly process more convenient.

[0049] like Figure 3-Figure 4As shown, the drive system 300 includes a permanent magnet motor 310, and the permanent magnet motor 310 includes a stator 301 and a rotor 302. The rotor 302 is mounted on the stator 301, and the stator 301 and the wheel axle 202 are an integrated structure. The running wheel 201 is mounted on the rotor 302. In this way, the running wheel assembly 200 and the drive system 300 are integrated into one, eliminating the transmission system, simplifying the overall structure of the bogie, and achieving overall lightweight of the bogie. The running wheel 201 and the rotor 302 are detachably fixedly connected. In this way, the rotation of the rotor 302 can directly drive the running wheel 201 to rotate synchronously to realize the driving of the vehicle body, thereby improving the transmission efficiency.

[0050] In actual situations, Figure 4 and Figure 7 As shown, the rotor 302 is covered with a rotor housing 3021, which is fixedly connected to the rotor 302 and rotates synchronously with the rotor 302, thereby sealing the internal rotor 302 and the stator 301 to prevent foreign matter from intruding, thereby ensuring the rotation stability of the permanent magnet motor 310 and extending the service life of the permanent magnet motor 310; the running wheel 201 is covered with the rotor housing 3021 and is detachably fixedly connected to the rotor housing 3021, thereby increasing the contact area between the running wheel 201 and the rotor 301 and improving the stability of the transmission.

[0051] It should be noted that the rotor housing 3021 can be understood as a rim, or the rotor housing 3021 and the rim are integrated into one, and the running wheel 201 can be understood as a tire.

[0052] In some embodiments, Figure 4 and Figure 6 As shown, the stator 301 is extended to form the axle 202, so that the stator 301 and the axle 202 are formed in one piece to increase the strength of the axle 202 and ensure the stability of the transmission.

[0053] In some other embodiments, the extension sections may be fixedly connected to both ends of the stator 301 , for example, by welding, so that the stator 301 and the extension sections together form the axle 202 , thereby simplifying the manufacturing process.

[0054] like Figure 4-Figure 5 As shown, bearings 203 are provided at both ends of the axle 202. The bearings 203 are located between the running wheels 201 and the brake disc assembly 500 to support the axle 202 to ensure that the axle 202 stably supports the running wheels 201 and the drive system 300 integrated on the axle 202, thereby further ensuring the stability of the vehicle body during driving.

[0055] In some embodiments, the bearing 203 is a single-row cylindrical roller, which can withstand strong radial loads and improve the support stability of the axle 202. Of course, the bearing 203 can also be a deep groove ball bearing, a cylindrical roller bearing, etc., which is not limited in the embodiments of the present application.

[0056] like Figure 1 , Figure 3 , Figure 4 and Figure 8 As shown, the number of the running wheels 201 outermost on the rotor 301 is one, and the running wheel 201 is a wide tire. The axial width of the wide tire is compatible with the rotor shell 3021, and can drive the vehicle body to travel stably. In this way, the number of running wheels 201 that need to be replaced is reduced, the time for disassembling and replacing the running wheels 201 is saved, and the efficiency of wheel changing is improved.

[0057] In some embodiments, Figure 1 , Figure 2 and Fig. 9 As shown, the fixing assembly 400 includes two pinching bodies, namely an upper pinching body 410 and a lower pinching body 420 . The upper pinching body 410 is fixed to the fixing beam 101 and is located at the lower side of the fixing beam 101 .

[0058] In the first state, the upper body 410 and the lower body 420 are detachably fixedly connected, the bolt 402 is threadedly connected to the upper body 410 and the lower body 420, and the axle 202 is located between the upper body 410 and the lower body 420 and clamped by the upper body 410 and the lower body 420, thereby increasing the contact area between the axle 202 and the fixing assembly 400 and increasing the stability of the clamping of the axle 202; in the second state, the bolt 402 is removed, the lower body 420 is separated from the upper body 410 and the axle 202 is released, so that the running wheel assembly 200 and the drive system 300 are separated from the frame assembly 100.

[0059] In some other embodiments, the fixing assembly 400 includes a clamping body. In a first state, the clamping body is detachably fixedly connected to the fixing beam 101 by a bolt 402, and the axle 202 is located between the clamping body and the fixing beam 101 and clamped by the clamping body and the fixing beam 101. In a second state, the bolt 402 is removed, the clamping body is separated from the fixing beam 101 and the axle 202 is released, thereby reducing the number of components and lowering costs.

[0060] According to the working principle of the permanent magnet motor 310, the stator 301 is relatively fixed to the frame assembly 100, that is, the axle 202 is relatively fixed to the frame assembly 100. In order to ensure that the axle 202 can be stably clamped between the fixing component 400 and the fixed beam 101 during the rotation of the running wheel 201 driven by the permanent magnet motor 310, the end cross-section of the axle 202 is polygonal, and the clamping body has a groove 401. The groove 401 can accommodate the end of the axle 202, and the groove 401 is clamped with the end of the axle 202, so that the axle 202 and the fixed beam 101 are relatively fixed and do not rotate, and at the same time, the contact area between the clamping body and the axle 202 is increased, further ensuring the stability of the clamping of the axle 202.

[0061] For example, Figure 6 and Fig. 9 As shown, the cross section of the end of the axle 202 is a regular hexagon, and the groove 401 is adapted to the regular hexagon to achieve stable clamping of the axle 202.

[0062] In some other embodiments, the end cross-section of the axle 202 may also be a polygon such as a square or a regular octagon, which is not limited in the embodiments of the present application.

[0063] It should be noted that, when the fixing assembly includes two pinching bodies, the upper pinching body 410 and the lower pinching body 420 both have a groove 401. In the first state, the grooves 401 of the upper pinching body 410 and the lower pinching body 420 fit with each side of the polygonal end of the axle 202, further increasing the contact area between the axle 202 and the pinching bodies, and further improving the stability of clamping the axle 202.

[0064] As described above, in the straddle-type monorail train bogie provided in the embodiment of the present application, the brake disc assembly 500, the drive system 300 and the running wheel assembly 200 are integrated into an integrated body, which saves the transmission system and simplifies the overall structure. In order to adapt to the installation of the integrated body on the frame assembly 100 and to further simplify the overall structure of the bogie, the structure of the frame assembly 100 is simplified.

[0065] like Figure 2 As shown, the frame assembly 100 includes a frame body and an auxiliary running wheel set.

[0066] The frame body includes: two vertical fixed beams 101, vertical beams 120 and horizontal beams 104. Among them, the fixed beams 101 are perpendicular to the wheel axle 202 and are distributed at both ends of the wheel axle 202; the vertical beams 120 are fixedly connected to the fixed beams 101, and the vertical beams 120 are distributed at both ends and the middle of the fixed beams 101. The vertical beams 120 include first vertical beams 102 distributed at both ends of the fixed beams 101, and second vertical beams 103 distributed in the middle of the fixed beams 101; the horizontal beams 104 are distributed at both ends of the fixed beams 101, and the two ends of the horizontal beams 104 are respectively fixedly connected to the first vertical beams 102. The fixed beams 101, the vertical beams 120 and the horizontal beams 104 are all straight beams, which simplifies the structure of the frame body and makes the frame body lightweight.

[0067] In some embodiments, the fixed beam 101, the vertical beam 120 and the horizontal beam 104 are fixed by welding, which simplifies the operation process and makes the frame body further lightweight.

[0068] In some other embodiments, the fixed beam 101, the vertical beam 120 and the horizontal beam 104 may be fixed by connecting pieces, so that the connection between the fixed beam 101, the vertical beam 120 and the horizontal beam 104 is more flexible to adapt to the size of the frame body.

[0069] The auxiliary running wheel group includes: a guide wheel 106, a stabilizing wheel 107 and an auxiliary wheel 108. The guide wheel 106 is arranged at the bottom end of the first vertical beam 102, and is used for guiding when turning; the stabilizing wheel 107 is arranged at the bottom end of the second vertical beam 103, and is used to prevent the monorail train from tilting and rolling over when running, so as to ensure safe driving; the auxiliary wheel 108 is arranged on the cross beam 104, and is used to assist the running of the running wheel 201, and continue to support the vehicle body when the running wheel 201 has a tire blowout, etc., to provide auxiliary protection.

[0070] In actual situations, Figure 2 As shown, the frame body also includes a middle cross beam 105, both ends of which are fixed to the second vertical beam 103, and the middle cross beam 105 is a straight beam, which further simplifies the structure of the frame body. The middle cross beam 105 is provided with a center pin 109 connected to the monorail train body, and air springs 110 for supporting the body are provided on both sides of the center pin 109, which can achieve buffering during the movement of the body.

[0071] When the running wheel 201 of the straddle-type monorail train bogie provided in the embodiment of the present application needs to be replaced and overhauled, the monorail train is first parked at the maintenance station, the frame assembly 100 and the car body are supported, and then the bolts 402 in the fixing assembly 400 are removed to separate the clamping body from the fixed beam 101, so that the wheel axle 202 drives the running wheel assembly 200, the drive system 300 and the brake disc assembly 500 to synchronously separate from the frame body from the lower side of the fixed beam 101, and then the running wheel 201 is separated from the drive system 300, so that the running wheel 201 does not need to move axially within the limited axial space size, and can be directly removed from the vertical direction, thereby realizing the disassembly of the running wheel 201 and the wheel replacement without disassembly, saving the time of wheel replacement and improving the efficiency of wheel replacement.

[0072] An embodiment of the present application further provides a straddle-type monorail train, which comprises the straddle-type monorail bogie in the above embodiment.

[0073] Since the above-mentioned straddle-type monorail bogie has the above-mentioned technical effects, and the above-mentioned straddle-type monorail train includes the above-mentioned straddle-type monorail bogie, the above-mentioned straddle-type monorail train also has corresponding technical effects, which will not be repeated here.

[0074] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A straddle-type monorail train bogie, characterized in that: include: A frame assembly (100), a running wheel assembly (200), a drive system (300) and a fixing assembly (400); Wherein, the running wheel assembly (200) comprises a running wheel (201) and a wheel axle (202); the drive system (300), the running wheel (201) and the wheel axle (202) are integrated into one; The frame assembly (100) comprises a fixed beam (101), and the wheel axle (202) is located at the lower side of the fixed beam (101); The fixing assembly (400) has a first state and a second state. In the first state, the fixing assembly (400) is fixedly connected to the fixing beam (101), the fixing assembly (400) and the fixing beam (101) clamp the wheel axle (202), and the fixing assembly (400) and the wheel axle (202) are both located at the lower side of the fixing beam (101); in the second state, the fixing assembly (400) is separated from the fixing beam (101) and releases the wheel axle (202), so that the wheel axle (202) provided with the running wheel (201) and the driving system (300) is separated from the lower side of the fixing beam (101) and the fixing beam (101).

2. The straddle-type monorail train bogie according to claim 1, characterized in that: The drive system (300) comprises a permanent magnet motor (310), wherein the permanent magnet motor (310) comprises a stator (301) and a rotor (302), wherein the rotor (302) is disposed on the stator (301); Wherein, the stator (301) and the wheel axle (202) are an integrated structure; The running wheel (201) is externally mounted on the rotor (302), and the running wheel (201) and the rotor (302) are detachably fixedly connected.

3. The straddle-type monorail train bogie according to claim 1, characterized in that: The fixing assembly (400) comprises two pinching bodies, namely an upper pinching body (410) and a lower pinching body (420); the upper pinching body (410) is fixed to the fixing beam (101); In the first state, the upper pinch body (410) and the lower pinch body (420) are detachably fixedly connected, and the wheel axle (202) is located between the upper pinch body (410) and the lower pinch body (420) and is clamped by the upper pinch body (410) and the lower pinch body (420); in the second state, the lower pinch body (420) is separated from the upper pinch body (410) and the wheel axle (202) is released.

4. The straddle-type monorail train bogie according to claim 1, characterized in that: The fixing assembly (400) comprises a pinching body; In the first state, the pinching body is detachably fixed to the fixed beam (101), and the wheel axle (202) is located between the pinching body and the fixed beam (101) and is clamped by the pinching body and the fixed beam (101); in the second state, the pinching body is separated from the fixed beam (101) and the wheel axle (202) is released.

5. The straddle-type monorail train bogie according to any one of claims 3 to 4, characterized in that: The cross section of the end of the wheel axle (202) is polygonal, and the clamping body has a groove (401), the groove (401) accommodates the end of the wheel axle (202), and the groove (401) is clamped and matched with the end of the wheel axle (202).

6. The straddle-type monorail train bogie according to claim 5, characterized in that: The cross section of the end of the wheel axle (202) is in the shape of a regular hexagon.

7. The straddle-type monorail train bogie according to claim 1, characterized in that: It also includes a brake disc assembly (500), wherein the brake disc assembly (500) is arranged on the wheel axle (202) and distributed on both sides of the running wheel (201); The frame assembly (100) has a clearance space for the running wheel assembly (200), the drive system (300) and the brake disc assembly (500) to synchronously detach from the frame assembly (100) from the fixed beam (101).

8. The straddle-type monorail train bogie according to any one of claims 1, characterized in that: The frame assembly (100) comprises a frame body and an auxiliary running wheel set; The frame body comprises: two vertical fixed beams (101), vertical beams (120) and horizontal beams (104), wherein the fixed beams (101) are perpendicular to the wheel axles (202), and the fixed beams (101) are distributed at both ends of the wheel axles (202); The vertical beam (120) and the fixed beam (101) are fixedly connected, and the vertical beam (120) comprises a first vertical beam (102) distributed at both ends of the fixed beam (101), and a second vertical beam (103) distributed in the middle of the fixed beam (101); The cross beam (104) is distributed at both ends of the fixed beam (101), and the two ends of the cross beam (104) are respectively fixedly connected to the first vertical beam (102) located at both ends of the fixed beam (101); The auxiliary running wheel group comprises: a guide wheel (106), a stabilizing wheel (107) and an auxiliary wheel (108); the guide wheel (106) is arranged at the bottom end of the first vertical beam (102); the stabilizing wheel (107) is arranged at the bottom end of the second vertical beam (103) located in the middle of the fixed beam (101); and the auxiliary wheel (108) is arranged on the cross beam (104).

9. The straddle-type monorail train bogie according to claim 8, characterized in that: The frame body also includes a middle cross beam (105), the two ends of which are fixed to the second vertical beam (103), the middle cross beam (105) is provided with a center pin (109) connected to the monorail train body, and air springs (110) are provided on both sides of the center pin (109) for supporting the body.

10. A straddle-type monorail train, characterized in that: It comprises a straddle-type monorail train bogie as described in any one of claims 1 to 9.

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