Straddle type monorail 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 driver, a planetary gear reducer, a brake and a fixing assembly, walking wheels in the walking wheel assembly are detachably and fixedly connected through hubs and axles, and the driving wheel is fixedly connected with the planetary gear reducer through the fixing assembly; the wheel axle and the driver are in transmission connection through the planetary gear reducer, so that power of the driver is transmitted to the wheel axle after being decelerated through the planetary gear reducer to drive the walking wheels to rotate and drive the vehicle body to run; the fixing assembly is detachably and fixedly connected with the connecting beam of the framework assembly, so that the fixing assembly detachably clamps the wheel shaft, the brake, the walking wheel assembly, the planetary gear reducer and the driver to be integrated into an integrated assembly, and the whole integrated assembly is detachably clamped by the fixing assembly and the connecting beam. The integrated assembly can be separated from the connecting beam by detaching the fixing assembly, and the walking wheels on the integrated assembly are detached after the integrated assembly is separated from the framework assembly, so that the walking wheels are not detached and replaced, the wheel replacement time is saved, and the wheel replacement 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 this application is to provide a kind of.

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

[0007] A straddle-type monorail bogie comprises: a frame assembly, a running wheel assembly, a driver, a planetary gear reducer, a brake and a fixing assembly; wherein the frame assembly comprises a connecting beam; the running wheel assembly comprises a running wheel, a wheel axle and a wheel hub, the running wheel is detachably fixedly connected to the wheel axle through the wheel hub, the wheel axle and the driver are transmission-connected through the planetary gear reducer, the brake, the running wheel, the planetary gear reducer and the driver are sequentially distributed along the axial direction of the wheel axle, and the brake, the running wheel, the planetary gear reducer and the driver are integrated into an integrated assembly;

[0008] The fixing component is detachably connected to the connecting beam and the wheel axle, the wheel axle and the connecting beam are relatively fixed in the axial direction, the wheel axle can rotate around its axis, and the fixing component and the wheel axle are both located on the lower side of the connecting beam; the frame assembly has a clearance space for the integrated assembly to detach from the frame assembly from the lower side of the connecting beam.

[0009] In some embodiments, the fixing assembly includes a first fixing member and a second fixing member; the connecting beam is distributed on both sides of the traveling wheel; the first fixing member is detachably connected to the connecting beam and the first end of the axle close to the driver, and the first fixing member is located between the planetary gear reducer and the traveling wheel; the second fixing member is detachably connected to the connecting beam and the second end of the axle close to the brake.

[0010] In some embodiments, the brake includes: a brake air chamber, a camshaft and a brake drum; wherein the brake drum is arranged inside the wheel hub, and the brake air chamber opens the brake drum through the camshaft for braking the wheel hub; the brake drum and the brake air chamber are distributed on both sides of the second fixing member, and the camshaft passes through the second fixing member and connects the brake drum and the brake air chamber.

[0011] In some embodiments, the second fixing member includes a second fixing member body and a sleeve, the sleeve is located on a side of the second fixing member body close to the brake air chamber, the sleeve is communicated with the through hole, and both the sleeve and the through hole are for the camshaft to pass through.

[0012] In some embodiments, the first end of the wheel axle is provided with a first bearing, and the first end of the wheel axle is rotatably matched with the first fixing member and the connecting beam through the first bearing;

[0013] The second end of the wheel axle is provided with a second bearing, and the second end of the wheel axle is rotatably matched with the second fixing member and the connecting beam through the second bearing.

[0014] In some embodiments, the planetary gear reducer includes: a sun gear, a planetary gear set, an outer ring gear, a planet carrier and a housing; wherein the sun gear is fixedly connected to the output shaft of the driver, the planetary gear set is meshed with the sun gear, the planetary gear set is meshed with the outer ring gear, the outer ring gear is fixed to the housing, and the housing is fixedly connected to the housing of the driver; the planetary gears in the planetary gear set are rotatably arranged on the planet carrier, and the planet carrier is detachably connected to the wheel axle.

[0015] In some embodiments, the axle and the planet carrier are connected via a spline transmission.

[0016] In some embodiments, the planetary gear reducer also includes a fixed frame, which is located between the planetary gear set and the driver and is rotatably connected to the housing; the planetary frame includes a connecting rod, which is connected to the fixed frame via a threaded fastener.

[0017] In some embodiments, the fixing assembly is detachably fixedly connected to the connecting beam by bolts;

[0018] And / or, the driver is a permanent magnet motor.

[0019] A straddle-type monorail train comprises the straddle-type monorail bogie as described above.

[0020] In the straddle-type monorail bogie provided by the present application, the fixed component and the connecting beam are detachably fixedly connected so that the fixed component can detachably clamp the wheel axle, the wheel axle and the connecting beam are relatively fixed in the axial direction, and the wheel axle can rotate around its axis, the running wheel is detachably fixedly connected through the wheel hub and the wheel axle, the wheel axle and the driver are linked through a planetary gear reducer transmission, and the brake, running wheel, planetary gear reducer and driver are sequentially distributed along the axial direction of the wheel axle, the brake, running wheel assembly, planetary gear reducer and driver are integrated into an integrated assembly, so that the fixed component and the connecting beam can detachably clamp the entire integrated assembly, so that by disassembling the fixed component The assembly can realize the separation of the integrated assembly from the connecting beam; the fixed assembly and the wheel axle are both located on the lower side of the connecting beam, and the frame assembly has a space for the integrated assembly to detach from the frame assembly from the lower side of the connecting beam. In this way, the integrated assembly can detach from the frame assembly from the lower side of the connecting beam in the vertical direction. Therefore, the integrated assembly can be disassembled without disassembling the frame assembly. After the integrated assembly is detached from the frame assembly, the running wheels on the integrated assembly are disassembled. Within the limited axial space size, the running wheels do not need to move axially, and can be directly removed in the vertical direction. This realizes the disassembly of the running wheels and the implementation of wheel changing without disassembling the running wheels, which saves the time of wheel changing and improves the efficiency of wheel changing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 An axonometric view of a straddle-type monorail train bogie provided in an embodiment of the present application;

[0023] Figure 2 An axonometric view of a frame assembly of a straddle-type monorail train bogie provided in an embodiment of the present application;

[0024] Figure 3 An axonometric diagram of the coordination of the driver, the running wheel assembly, and the brake in the bogie of a straddle-type monorail train provided in an embodiment of the present application;

[0025] Figure 4 for Figure 3 A cross-sectional view of

[0026] Figure 5 for Figure 4 A partial enlarged view of

[0027] Figure 6 A side view of a planetary gear reducer provided in an embodiment of the present application;

[0028] Figure 7 An axonometric view of a planet carrier provided in an embodiment of the present application;

[0029] Figure 8 An axonometric view of a brake provided in an embodiment of the present application;

[0030] Fig. 9 An axonometric view of a first fixing member in a straddle-type monorail train bogie provided in an embodiment of the present application;

[0031] Fig.10 An axonometric view of a second fixing member in a straddle-type monorail train bogie provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 100-frame assembly, 111-connecting beam, 121-guide wheel, 122-stabilizing wheel, 123-auxiliary wheel, 130-center pin, 140-air spring;

[0034] 200-running wheel assembly, 210-running wheel, 220-wheel axle, 230-wheel hub;

[0035] 300-Driver;

[0036] 400-planetary gear reducer, 410-sun gear, 420-planetary gear set, 430-outer ring gear, 440-planet carrier, 441-connecting rod, 450-housing, 460-fixed frame;

[0037] 500-brake, 510-brake chamber, 520-camshaft, 530-brake drum;

[0038] 600-fixing assembly, 610-first fixing member, 620-second fixing member, 621-second fixing member body, 622-shaft sleeve, 623-through hole;

[0039] 710-first bearing, 720-second bearing, 730-bearing seat. DETAILED DESCRIPTION

[0040] 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.

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the 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 the appended claims of the present application, the singular expressions "one", "a kind", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two or more; "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0042] 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.

[0043] 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.

[0044] like Figure 1As shown, the straddle-type monorail bogie provided in the embodiment of the present application includes: a frame assembly 100, a running wheel assembly 200, a driver 300, a planetary gear reducer 400, a brake 500 and a fixing assembly 600, wherein the running wheel assembly 200 includes a running wheel 210, an axle 220 and a hub 230, the running wheel 210 is detachably fixedly connected to the axle 220 through the hub 230, the axle 220 and the driver 300 are transmission-connected through the planetary gear reducer 400, so that the power of the driver 300 is transmitted to the axle 220 after being decelerated by the planetary gear reducer 400, so as to drive the running wheel 210 to rotate and drive the vehicle body to travel.

[0045] like Figure 4 As shown, there are two running wheels 210 in the running wheel assembly 200, and the two running wheels 210 are detachably fixedly connected via a wheel hub 230 and a wheel axle 220. The wheel axle 220 is provided with a wheel hub flange (not shown in the figure), and the wheel axle 220 and the wheel hub 230 are positioned and detachably fixedly connected via the wheel hub flange, so as to position and fix the running wheel 210 via the wheel hub 230, thereby driving the running wheel 210 to rotate.

[0046] like Figure 1-Figure 3 As shown, the frame assembly 100 includes a connecting beam 111, and the fixing assembly 600 is detachably connected to the wheel axle 220 and the connecting beam 111. Specifically, the fixing assembly 600 is detachably connected to the connecting beam 111 by bolts, so that the fixing assembly 600 and the connecting beam 111 can detachably clamp the wheel axle 220, the wheel axle 220 and the connecting beam 111 are relatively fixed in the axial direction and the wheel axle 220 can rotate around its axis, the brake 500, the running wheel 210, the planetary gear reducer 400 and the driver 300 are sequentially distributed along the axial direction of the wheel axle 220, and the brake 500, the running wheel assembly 200, the planetary gear reducer 400 and the driver 300 are integrated into an integrated assembly, so that the fixing assembly 600 can detachably clamp the entire integrated assembly, so that by disassembling the fixing assembly 600, the wheel axle 220 and the connecting beam 111 can be detachably clamped. The fixed component 600 can realize the separation of the integrated assembly from the connecting beam 111; the fixed component 600 and the wheel axle 220 are both located on the lower side of the connecting beam 111, and the frame assembly 100 has a makeshift space for the integrated assembly to detach from the frame assembly 100 from the lower side of the connecting beam 111. In this way, the integrated assembly can detach from the frame assembly 100 from the lower side of the connecting beam 111 along the vertical direction. Therefore, the integrated assembly can be disassembled without disassembling the frame assembly 100. After the integrated assembly is detached from the frame assembly 100, the running wheel 210 on the integrated assembly is disassembled. Within the limited axial space size, the running wheel 210 does not need to move axially, and can be directly removed from the lower side in the vertical direction, thereby realizing the disassembly of the running wheel 210 without disassembling and changing the wheel, saving the time for changing the wheel and improving the efficiency of changing the wheel.

[0047] As mentioned above, the brake 500, the running wheel assembly 200, the planetary gear reducer 400 and the driver 300 are integrated into an integrated assembly so as to be synchronously separated from the frame assembly 100. In order to facilitate the lowering of the integrated assembly (directly detaching from the frame assembly 100 downward in the vertical direction), the weight of the integrated assembly needs to be reduced as much as possible. In order to make the entire integrated assembly lightweight, the driver 300 can be a permanent magnet motor, which is lightweight and reduces the overall size, so that the integrated assembly can be separated from the frame assembly 100, thereby improving the convenience and stability of the integrated assembly in the process of separating from the frame assembly 100.

[0048] like Figure 2 As shown, the frame assembly 100 further includes an auxiliary running wheel set, a center pin 140 and an air spring 150 .

[0049] The auxiliary running wheel group includes guide wheels 121, which are installed at the four corners of the frame assembly 100 for guiding when turning; auxiliary wheels 123 are installed on the front and rear end beams of the frame assembly 100 parallel to the axis of the wheel axle 220, which are used to assist the running of the running wheel 210 and continue to support the vehicle body when the running wheel 210 has a tire blowout, etc., to provide auxiliary protection; stabilizing wheels 122 are installed at the bottom ends of the vertical beams on both sides of the frame assembly 100 to prevent the monorail train from tilting and rolling over during operation, so as to ensure safe driving.

[0050] The center pin 140 is located at the top center of the frame assembly 100 . The center pin 140 connects the car body and the bogie. Air springs 150 are respectively provided on both sides of the center pin 140 . The air springs 150 provide buffering support for the car body.

[0051] like Figure 1-Figure 2 As shown, the frame in the frame assembly 100 is a gooseneck frame, which meets the strength requirements of the frame assembly 100, and the connecting beam 111 is an arched structure with low ends and a high middle, which is convenient for accommodating the axle 220 under the connecting beam 111, while ensuring the strength of the frame assembly 100; the connecting beams 111 are distributed on both sides of the running wheel 210, so that both ends of the axle 220 can be clamped between the fixing component 600 and the connecting beam 111, thereby improving the stability of the fixing component 600 and the connecting beam 111 in clamping the integrated assembly, and ensuring the safety and stability of the vehicle body during operation.

[0052] like Figure 3-Figure 4As shown, the fixing assembly 600 includes a first fixing member 610 and a second fixing member 620. The first fixing member 610 is detachably connected to the connecting beam 111 and the first end of the axle 220 close to the driver 300, and the first fixing member 610 is located between the planetary gear reducer 400 and the running wheel 210; the second fixing member 620 is detachably connected to the connecting beam 111 and the second end of the axle 220 close to the brake 500. In this way, the first fixing member 610 and the second fixing member 620 are respectively clamped at both ends of the axle 220, so that the forces at both ends of the axle 220 are balanced, thereby improving the stability of the clamping of the integrated assembly.

[0053] Since the driver 300 drives the axle 220 to rotate through the planetary gear reducer 400, in order to ensure that the axle 220 can rotate, as shown in FIG. Figure 4 As shown, the first end of the axle 220 is provided with a first bearing 710, and the first end of the axle 220 is rotatably matched with the first fixing member 610 and the connecting beam 111 through the first bearing 710; the second end of the axle 220 is provided with a second bearing 720, and the second end of the axle 220 is rotatably matched with the second fixing member 620 and the connecting beam 111 through the second bearing 720. In this way, the first end and the second end of the axle 220 are supported by the first bearing 710 and the second bearing 720 respectively, so that the axle 220 can rotate stably, thereby driving the running wheel 220 to rotate stably and ensuring the stable running of the vehicle body.

[0054] In some embodiments, the first bearing 710 and the second bearing 720 are double-row tapered roller bearings, which can withstand the combined radial and axial loads and improve the support stability of the axle 220. Of course, the first bearing 710 and the second bearing 720 can also be deep groove ball bearings, cylindrical roller bearings, etc., which are not limited in the embodiments of the present application.

[0055] In order to facilitate the docking of the first bearing 710 and the second bearing 720 with the connecting beam 111, as shown in FIG. Figure 2 As shown, a bearing seat 730 is fixedly installed at the arch structure of the connecting beam 111, so that the first bearing 710 and the second bearing 720 are clamped between the bearing seat 730 and the fixing assembly 600, further improving the stability of the support for the wheel axle 220.

[0056] In order to provide a receiving space for the first bearing 710 and the second bearing 720, as shown in FIG. Figure 9-10As shown, the first fixing member 610 and the second fixing member 620 both have grooves for accommodating the first bearing 710 and the second bearing 720, and the first bearing 710 and the second bearing 720 are respectively located between the grooves of the first fixing member 610 and the second fixing member 620 and the connecting beam 111. In this way, the contact area between the first fixing member 610 and the second fixing member 620 and the first bearing 710 and the second bearing 720 is increased, thereby increasing the clamping stability of the fixing assembly 600 on the wheel axle 220.

[0057] In order to further reduce the weight of the integrated assembly, Figure 4 and Figure 8 As shown, the brake 500 is an in-wheel drum brake. The drum brake is lightweight and simple in structure, low in cost and has a large braking force, and is more suitable for large vehicles. Specifically, the brake 500 includes a brake air chamber 510, a camshaft 520 and a brake drum 530. The brake drum 530 is arranged inside the wheel hub 230. The brake air chamber 510 opens the brake drum 530 through the camshaft 520 to brake the wheel hub 230. By arranging the brake drum 530 inside the wheel hub 230, the axial dimension is reduced, thereby further facilitating the process of the integrated assembly being separated from the frame assembly 100 as a whole.

[0058] Since in the brake 500, the brake drum 530 is located inside the wheel hub 230, the camshaft 520 and the brake air chamber 510 are both located outside the wheel hub 230, and the brake drum 530 and the brake air chamber 510 are distributed on both sides of the second fixing member 620, therefore, the camshaft 520 passes through the second fixing member 620 and connects the brake drum 530 and the brake air chamber 510, so that when the second fixing member 620 is separated from the connecting beam 111, the brake 500 can be separated synchronously with the second fixing member 620, thereby improving the efficiency of the entire integrated assembly to separate from the connecting beam 111.

[0059] Since the brake chamber 510 has a certain size, in order to provide a space for accommodating the brake chamber 510, the camshaft 520 has a certain transmission distance. Therefore, in order to provide support and protection for the camshaft 520, as shown in FIG. Fig.10 As shown, the second fixing member 620 includes a second fixing member body 621 and a sleeve 622. The second fixing member body 621 is provided with a through hole 623. The sleeve 622 is located on the side of the second fixing member body 621 close to the brake air chamber 510. The sleeve 622 and the through hole 623 are connected, and the sleeve 622 and the through hole 623 are both for the camshaft 520 to pass through. In this way, support and protection can be provided for the camshaft 520, the stability of the transmission process of the brake air chamber 510 through the camshaft 520 is improved, and the braking effect of the brake 500 is improved.

[0060] In order to reduce the volume of the transmission system and make the entire integrated assembly lightweight so as to facilitate the separation of the integrated assembly from the connecting beam 111, the straddle-type monorail bogie provided in the embodiment of the present application adopts a planetary gear reducer 400 for transmission.

[0061] like Figure 5-Figure 7 As shown, the planetary gear reducer 400 includes: a sun gear 410, a planetary gear set 420, an outer gear ring 430, a planet carrier 440 and a housing 450. The sun gear 410 is fixedly connected to the output shaft of the driver 300 so that the driver 300 can drive the sun gear 410 to rotate. The planetary gear set 420 is meshed with the sun gear 410 and the outer gear ring 430, and the outer gear ring 430 is fixed on the housing 450. The housing 450 is fixed to the housing of the driver 300 by threaded fasteners. The planetary gears 420 are connected to the axle 220 in a detachable manner, so that the planetary gear set 420 drives the planetary gear set 420 to rotate, and the planetary gears of the planetary gear set 420 are connected to the axle 220 in a detachable manner, so that the planetary gear set 420 drives the planetary gear set 440 to rotate, and the planetary gear set 420 drives the planetary gear set 420 to rotate, and the planetary gear set 420 drives the axle 220 to rotate, thereby transmitting the power of the driver 300 to the axle 220.

[0062] In order to ensure the transmission effect between the planet carrier 440 and the wheel shaft 220, as shown in FIG. Figure 7 As shown, the wheel axle 220 and the planetary carrier 440 are connected via a spline transmission, which improves the transmission connection strength between the planetary carrier 440 and the wheel axle 220 and improves the stability of the transmission process; at the same time, after removing the first fixing member 610, it is convenient for the wheel axle 220 to separate from the planetary carrier 440 along its axial direction, thereby improving the efficiency of the running wheel 210 separating from the wheel axle 220, thereby improving the wheel changing efficiency.

[0063] In some other embodiments, the axle 220 and the planet carrier 440 may also be connected by a flat key, which simplifies the structure and reduces the number of processing steps.

[0064] In order to further ensure the transmission effect of the planet carrier 440, as Figure 4 As shown, the planetary gear reducer 400 also includes a fixed frame 460, which is located between the planetary gear set 420 and the driver 300. The fixed frame 460 is rotatably connected to the housing 450, the fixed frame 460 is meshed with the planetary gears of the planetary gear set 420, and the fixed frame 460 and the housing 450 are relatively fixed axially. The planetary carrier 440 has a plurality of connecting rods 441 distributed along the circumferential direction, and the plurality of connecting rods 441 are connected to the fixed frame 460 by threaded fasteners, so as to axially limit the planetary carrier 440, thereby improving the stability of the transmission process of the planetary carrier 440 and further improving the transmission effect.

[0065] For example, Figure 7As shown, the planet carrier 440 is provided with five connecting rods 441, and the five connecting rods 441 are distributed in sequence and equidistantly along the circumference of the planet carrier 440, thereby improving the stability of the connection between the planet carrier 440 and the fixing frame 460 and further improving the transmission effect.

[0066] When the running wheel 210 of the straddle-type monorail bogie provided in the embodiment of the present application needs to be replaced and repaired, the monorail train is first parked at the maintenance station, the frame assembly 100 and the car body are supported, the bolts connecting the first fixing assembly 610 and the connecting beam 111 are first disassembled, the first fixing assembly 610 is removed, and then the bolts connecting the second fixing assembly 620 and the connecting beam 111 are disassembled, so that the integrated assembly of the brake 500, the running wheel assembly 200, the planetary gear reducer 400 and the driver 300 and the second fixing assembly 620 are connected. 0 is synchronously separated from the connecting beam 111, and then the connecting end of the wheel shaft 220 and the brake 500 is pulled out, so that the wheel shaft 220, the planetary gear reducer 400 and the driver 300 are synchronously moved out along the axial direction of the wheel shaft 220, so that the running wheel 210 can be separated from the connecting beam 111 from the bottom of the connecting beam 111. Within the limited axial space size, the running wheel 210 does not need to move axially, and can be directly removed from the vertical direction, so that the running wheel can be disassembled and replaced without disassembling, which saves the time of wheel replacement and improves the efficiency of wheel replacement.

[0067] An embodiment of the present application further provides a straddle-type monorail train, which comprises the straddle-type monorail bogie in the above embodiment.

[0068] 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.

[0069] 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 bogie, characterized in that: include: A frame assembly (100), a running wheel assembly (200), a driver (300), a planetary gear reducer (400), a brake (500) and a fixing assembly (600); Wherein, the frame assembly (100) comprises a connecting beam (111); The running wheel assembly (200) comprises a running wheel (210), a wheel axle (220) and a wheel hub (230); the running wheel (210) is detachably fixedly connected to the wheel axle (220) via the wheel hub (230); the wheel axle (220) and the driver (300) are transmission-connected via the planetary gear reducer (400); the brake (500), the running wheel (210), the planetary gear reducer (400) and the driver (300) are sequentially distributed along the axial direction of the wheel axle (220); and the brake (500), the running wheel assembly (200), the planetary gear reducer (400) and the driver (300) are integrated into an integrated assembly; The fixing assembly (600) is detachably connected to the connecting beam (111) and the wheel axle (220); the wheel axle (220) and the connecting beam (111) are relatively fixed in the axial direction; the wheel axle (220) is capable of rotating around its axis; and the fixing assembly (600) and the wheel axle (220) are both located on the lower side of the connecting beam (111); and the frame assembly (100) has a clearance space for the integrated assembly to detach from the frame assembly (100) from the lower side of the connecting beam (111).

2. The straddle-type monorail bogie according to claim 1, characterized in that: The fixing assembly (600) comprises a first fixing member (610) and a second fixing member (620); The connecting beams (111) are distributed on both sides of the running wheels (210); The first fixing member (610) is detachably connected to the connecting beam (111) and the first end of the wheel axle (220) close to the driver (300), and the first fixing member (610) is located between the planetary gear reducer (400) and the running wheel (210); the second fixing member (620) is detachably connected to the connecting beam (111) and the second end of the wheel axle (220) close to the brake (500).

3. The straddle-type monorail bogie according to claim 2, characterized in that: The brake (500) comprises: a brake air chamber (510), a camshaft (520) and a brake drum (530); The brake drum (530) is disposed inside the wheel hub (230), and the brake air chamber (510) causes the brake drum (530) to open through the camshaft (520) to brake the wheel hub (230); The brake drum (530) and the brake air chamber (510) are distributed on both sides of the second fixing member (620), and the camshaft (520) passes through the second fixing member (620) and connects the brake drum (530) and the brake air chamber (510).

4. The straddle-type monorail bogie according to claim 3, characterized in that: The second fixing member (620) includes a second fixing member body (621) and a sleeve (622), the second fixing member body (621) is provided with a through hole (623), the sleeve (622) is located on a side of the second fixing member body (621) close to the brake air chamber (510), the sleeve (622) and the through hole (623) are communicated, and both the sleeve (622) and the through hole (623) are for the camshaft (520) to pass through.

5. The straddle-type monorail bogie according to claim 2, characterized in that: The first end of the wheel axle (220) is provided with a first bearing (710), and the first end of the wheel axle (220) is rotatably matched with the first fixing member (610) and the connecting beam (111) through the first bearing (710); The second end of the wheel axle (220) is provided with a second bearing (720), and the second end of the wheel axle (220) is rotatably matched with the second bearing (720), the second fixing member (620), and the connecting beam (111).

6. The straddle-type monorail bogie according to claim 1, characterized in that: The planetary gear reducer (400) comprises: a sun gear (410), a planetary gear set (420), an outer ring gear (430), a planet carrier (440) and a housing (450); The sun gear (410) is fixedly connected to the output shaft of the driver (300), the planetary gear set (420) is meshed with the sun gear (410), the planetary gear set (420) is meshed with the outer gear ring (430), the outer gear ring (430) is fixed on the housing (450), and the housing (450) is fixedly connected to the housing of the driver (300); The planetary gears in the planetary gear set (420) are rotatably arranged on the planet carrier (440), and the planet carrier (440) is detachably transmission-connected to the wheel shaft (220).

7. The straddle-type monorail bogie according to claim 6, characterized in that: The wheel shaft (220) and the planet carrier (440) are connected via a spline transmission.

8. The straddle-type monorail bogie according to claim 6, characterized in that: The planetary gear reducer (400) further comprises a fixed frame (460), wherein the fixed frame (460) is located between the planetary gear set (420) and the driver (300), and the fixed frame (460) is rotatably connected to the housing (450); The planet carrier (440) comprises a connecting rod (441), and the connecting rod (441) is connected to the fixing frame (460) via a threaded fastener.

9. The straddle-type monorail bogie according to claim 1, characterized in that: The fixing assembly (600) is detachably fixedly connected to the connecting beam (111) via bolts; And / or, the driver (300) is a permanent magnet motor.

10. A straddle-type monorail train, characterized by comprising the straddle-type monorail bogie according to any one of claims 1 to 9.

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