Straddle-type monorail bogie and straddle-type monorail train

Abstract

The application discloses a straddle-type monorail train bogie and a straddle-type monorail train. The straddle-type monorail train bogie comprises a frame assembly, a running wheel assembly, a driver, a planetary gear reducer, a brake and a fixing assembly. The running wheel of the running wheel assembly is detachably fixedly connected through a wheel hub and an axle. The axle and the driver are drivingly connected through the planetary gear reducer. The power of the driver is transmitted to the axle after being decelerated by the planetary gear reducer, so as to drive the running wheel to rotate and drive the vehicle body to run. The fixing assembly and a connecting beam of the frame assembly are detachably fixedly connected, so that the fixing assembly can detachably clamp the axle. The brake, the running wheel assembly, the planetary gear reducer and the driver are integrated into an integrated assembly. The fixing assembly and the connecting beam can detachably clamp the whole integrated assembly. Thus, the integrated assembly can be separated from the connecting beam by detaching the fixing assembly. The running wheel on the integrated assembly is detached after the integrated assembly is separated from the frame assembly. The running wheel can be detached without being uncoupled, and the running wheel can be replaced. The time for replacing the running wheel is saved, and the efficiency of replacing the running wheel is improved.

Description

Technical Field

[0001] This application relates to the field of straddle-type monorail train technology, and more specifically, to a straddle-type monorail train bogie and a straddle-type monorail train. Background Technology

[0002] A straddle-type monorail is a strip-shaped beam on which a train straddles and runs. It boasts advantages such as low noise, small turning radius, strong climbing ability, low construction cost, and extremely flexible operation, making it well-suited to the natural conditions of mountainous cities and providing convenience for residents. However, because monorails are mostly built in mountainous areas with complex operating conditions, the actual service life of the monorail train's running wheels is far shorter than the designed lifespan, increasing the frequency of running wheel replacement.

[0003] Currently, the wheel replacement process for monorail trains is complex. It requires unloading equipment such as bogies, cables, and pipelines from the train and arranging them in a specific order. After replacing the running wheels, the bogies, cables, and pipelines must be reconnected and installed, and the connections must be checked for correctness and security. The separation and reassembly of the bogies from the train is time-consuming. This detached wheel replacement method makes running wheel replacement complex and time-consuming, thus increasing operating costs.

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

[0005] In view of this, the purpose of this application is to provide a solution.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A straddle-type monorail bogie includes: a frame assembly, a running wheel assembly, a drive unit, a planetary gear reducer, a brake, and a fixing assembly; wherein, the frame assembly includes a connecting beam; the running wheel assembly includes running wheels, axles, and hubs, the running wheels are detachably fixedly connected to the axles via the hubs, the axles and the drive unit are drively connected via the planetary gear reducers, the brake, the running wheels, the planetary gear reducers, and the drive unit are sequentially distributed along the axial direction of the axles, and the brake, the running wheels, the planetary gear reducers, and the drive unit are integrated into an integrated assembly;

[0008] The fixing component detachably connects the connecting beam and the axle, the axle and the connecting beam are axially fixed relative to each other, the axle is rotatable about its axis, and both the fixing component and the axle are located on the underside of the connecting beam; the frame assembly has clearance space for the integrated assembly to detach from the underside 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 running wheel; the first fixing member is detachably connected to the connecting beam and the wheel axle near a first end of the driver, and the first fixing member is located between the planetary gear reducer and the running wheel; the second fixing member is detachably connected to the connecting beam and the wheel axle near a second end of the brake.

[0010] In some embodiments, the brake includes: a brake chamber, a camshaft, and a brake drum; wherein the brake drum is disposed inside the wheel hub, and the brake chamber opens the brake drum via the camshaft to brake the wheel hub; the brake drum and the brake 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 chamber.

[0011] In some embodiments, the second fixing member includes a second fixing member body and a bushing. The bushing is located on the side of the second fixing member body near the brake chamber. The bushing communicates with the through hole, and both the bushing and the through hole allow the camshaft to pass through.

[0012] In some embodiments, a first bearing is provided at the first end of the axle, and the first end of the axle is rotatably engaged with the first bearing, the first fixing member, and the connecting beam.

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

[0014] In some embodiments, the planetary gear reducer includes: a sun gear, a planetary gear set, an external gear ring, a planet carrier, and a housing; wherein the sun gear is fixedly connected to the output shaft of the driver, the planetary gear set meshes with the sun gear, the planetary gear set meshes with the external gear ring, the external gear ring 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 mounted on the planet carrier, and the planet carrier is detachably connected to the gear shaft for transmission.

[0015] In some embodiments, the axle and the planetary carrier are connected by a spline drive.

[0016] In some embodiments, the planetary gear reducer further includes a mounting bracket located between the planetary gear set and the driver, and the mounting bracket is rotatably connected to the housing; the planetary carrier includes a connecting rod connected to the mounting bracket by a threaded fastener.

[0017] In some embodiments, the fixing component is detachably fixed to the connecting beam by bolts;

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

[0019] A straddle-type monorail train, comprising a straddle-type monorail bogie as described above.

[0020] In the straddle-type monorail bogie provided in this application, the fixed assembly and connecting beam are detachably fixedly connected, so that the fixed assembly can detachably clamp the axle. The axle and connecting beam are relatively fixed in the axial direction, and the axle can rotate around its axis. The running wheels are detachably fixedly connected to the axle via the hub. The axle and drive are driven by a planetary gear reducer. The brake, running wheels, planetary gear reducer, and drive are distributed sequentially along the axial direction of the axle. The brake, running wheel assembly, planetary gear reducer, and drive are integrated into an integrated assembly, realizing the detachable clamping of the entire integrated assembly by the fixed assembly and connecting beam. Thus, by disassembling the fixed assembly... The components allow for the separation of the integrated assembly from the connecting beam. The fixed components and axles are located on the underside of the connecting beam. The frame assembly has space for the integrated assembly to detach from the frame assembly from the underside of the connecting beam. Thus, the integrated assembly can detach from the frame assembly vertically from the underside of the connecting beam. Therefore, the integrated assembly can be disassembled without disassembling the frame assembly. After the integrated assembly detaches from the frame assembly, the running wheels on the integrated assembly can be removed. Within the limited axial space, the running wheels do not need to move axially, and can be directly removed vertically. This achieves the removal and replacement of running wheels without disassembling and reassembling, saving time and improving efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 Axonometric drawing of a straddle-type monorail train bogie provided in an embodiment of this application;

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

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

[0025] Figure 4 for Figure 3 A sectional view;

[0026] Figure 5 for Figure 4 Enlarged view of part of the image;

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

[0028] Figure 7 An isometric view of the planetary carrier provided in an embodiment of this application;

[0029] Figure 8 An isometric view of the brake provided in an embodiment of this application;

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

[0031] Figure 10 An isometric view of the second fixing member in the straddle-type monorail train bogie provided in this application embodiment.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Frame assembly, 111-Connecting beam, 121-Guide wheel, 122-Stabilizing wheel, 123-Auxiliary wheel, 130-Center pin, 140-Air spring;

[0034] 200-Runner assembly, 210-Runner, 220-Axle, 230-Hub;

[0035] 300-Driver;

[0036] 400 - Planetary gear reducer, 410 - Sun gear, 420 - Planetary gear set, 430 - External gear ring, 440 - Planetary carrier, 441 - Connecting rod, 450 - Housing, 460 - Fixed frame;

[0037] 500 - Brake, 510 - Brake chamber, 520 - Camshaft, 530 - Brake drum;

[0038] 600-Fixing component, 610-First fixing member, 620-Second fixing member, 621-Second fixing member body, 622-Sleeve, 623-Through hole;

[0039] 710 - First bearing, 720 - Second bearing, 730 - Bearing housing. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0042] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0043] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0044] like Figure 1As shown, the straddle-type monorail bogie provided in this application embodiment includes: a frame assembly 100, a running wheel assembly 200, a driver 300, a planetary gear reducer 400, a brake 500, and a fixing component 600. The running wheel assembly 200 includes running wheels 210, axles 220, and hubs 230. The running wheels 210 are detachably fixedly connected to the axles 220 via the hubs 230. The axles 220 and the driver 300 are connected by a transmission via the planetary gear reducer 400, so that the power of the driver 300 is reduced by the planetary gear reducer 400 and transmitted to the axles 220 to drive the running wheels 210 to rotate and drive the car body to move.

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

[0046] like Figures 1-3 As shown, the frame assembly 100 includes a connecting beam 111. A fixing component 600 detachably connects the wheel axle 220 and the connecting beam 111. Specifically, the fixing component 600 is detachably connected to the connecting beam 111 by bolts, so that the fixing component 600 and the connecting beam 111 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 about its axis. The brake 500, the running wheel 210, the planetary gear reducer 400, and the driver 300 are distributed sequentially along the axial direction of the wheel axle 220. The brake 500, the running wheel assembly 210, the planetary gear reducer 400, and the driver 300 are integrated into an integrated assembly, realizing that the fixing component 600 detachably clamps the entire integrated assembly. Thus, by disassembling the fixing component 600, the wheel axle 220 can be detachably clamped. The fixed component 600 enables the separation of the integrated assembly from the connecting beam 111. Both the fixed component 600 and the wheel axle 220 are located on the underside of the connecting beam 111. The frame assembly 100 has clearance space for the integrated assembly to detach from the underside of the connecting beam 111. Thus, the integrated assembly can detach from the frame assembly 100 vertically from the underside of the connecting beam 111. Therefore, the integrated assembly can be disassembled without disassembling the frame assembly 100. After the integrated assembly detaches from the frame assembly 100, the running wheels 210 on the integrated assembly can be disassembled. Within the limited axial space, the running wheels 210 do not need to move axially and can be directly ejected vertically. This achieves the removal and replacement of the running wheels 210 without disassembling and reassembling them, saving time and improving efficiency.

[0047] As mentioned earlier, the brake 500, the running wheel assembly 200, the planetary gear reducer 400, and the driver 300 are integrated into an integrated assembly, which then synchronously detaches from the frame assembly 100. To facilitate the downward ejection of the integrated assembly (directly detaching from the frame assembly 100 vertically), the weight of the integrated assembly needs to be minimized. To further reduce the overall weight of the integrated assembly, the driver 300 can be a permanent magnet motor, which reduces the overall size while also making it easier for the integrated assembly to detach from the frame assembly 100, thus improving the convenience and stability of the process.

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

[0049] The auxiliary running wheel assembly includes guide wheels 121, which are installed at the four corners of the frame assembly 100 for guiding during turns; auxiliary wheels 123 are installed on the two end beams of the frame assembly 100 that are parallel to the axial direction of the wheel axle 220, for assisting the running wheels 210 in driving and for continuing to support the car body and provide auxiliary protection in the event of a tire blowout or other incident involving the running wheels 210; stabilizing wheels 122 are installed at the bottom of the vertical beams on both sides of the frame assembly 100 to prevent the monorail train from tilting or overturning during operation, thus ensuring safe operation.

[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 provided on both sides of the center pin 140 to provide cushioning support for the car body.

[0051] like Figures 1-2 As shown, the frame of the frame assembly 100 is a gooseneck frame, which meets the strength requirements of the frame assembly 100. The connecting beam 111 is an arched structure that is low at both ends and high in the middle, which facilitates the accommodation of the wheel axle 220 under the connecting beam 111, while ensuring the strength of the frame assembly 100. The connecting beam 111 is distributed on both sides of the running wheel 210 so that both ends of the wheel axle 220 can be clamped between the fixing component 600 and the connecting beam 111, which improves the stability of the clamping of the integrated assembly by the fixing component 600 and the connecting beam 111, and ensures the safety and stability of the vehicle body during operation.

[0052] like Figures 3-4As 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 axle 220 near the first end of the driver 300, and 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 axle 220 near the second end of 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 to balance the force on both ends of the axle 220 and improve the stability of clamping the integrated assembly.

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

[0054] In some embodiments, the first bearing 710 and the second bearing 720 are double-row tapered roller bearings, capable of withstanding combined radial and axial loads, thereby improving 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., and this application embodiment does not limit this.

[0055] To facilitate the connection of the first bearing 710 and the second bearing 720 with the connecting beam 111, such as Figure 2 As shown, a bearing seat 730 is fixedly installed at the arched 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, which further improves the stability of the support for the wheel axle 220.

[0056] In order to provide accommodating space for the first bearing 710 and the second bearing 720, such as Figures 9-10As shown, both the first fixing member 610 and the second fixing member 620 have grooves for accommodating the first bearing 710 and the second bearing 720. 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. This increases 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, thereby increasing the clamping stability of the fixing assembly 600 on the wheel axle 220.

[0057] To further reduce the weight of the integrated assembly, such as Figure 4 and Figure 8 As shown, brake 500 is an in-wheel drum brake. Drum brakes are simple in structure, low in cost, and have high braking force while meeting the requirements of lightweight design, making them more suitable for large vehicle bodies. Specifically, brake 500 includes a brake chamber 510, a camshaft 520, and a brake drum 530. The brake drum 530 is located inside the wheel hub 230. The brake chamber 510 opens the brake drum 530 through the camshaft 520 to brake the wheel hub 230. By placing the brake drum 530 inside the wheel hub 230, the axial dimension is reduced, thereby further facilitating the process of the integrated assembly being completely removed from the frame assembly 100.

[0058] Since the brake drum 530 is located inside the wheel hub 230, and the camshaft 520 and brake chamber 510 are both located outside the wheel hub 230, and the brake drum 530 and brake chamber 510 are distributed on both sides of the second fixing member 620, the camshaft 520 passes through the second fixing member 620 and connects the brake drum 530 and brake chamber 510, so that the brake 500 can follow the second fixing member 620 to disengage synchronously during the process of the second fixing member 620 disengaging from the connecting beam 111, thus improving the efficiency of the entire integrated assembly disengaging from the connecting beam 111.

[0059] Because the brake chamber 510 has a certain size, and the camshaft 520 has a certain transmission distance to provide space for the brake chamber 510, therefore, in order to provide support and protection for the camshaft 520, such as Figure 10 As shown, the second fixing member 620 includes a second fixing member body 621 and a bushing 622. The second fixing member body 621 is provided with a through hole 623. The bushing 622 is located on the side of the second fixing member body 621 near the brake chamber 510. The bushing 622 and the through hole 623 are connected, and both the bushing 622 and the through hole 623 allow the camshaft 520 to pass through. In this way, the camshaft 520 can be supported and protected, improving the stability of the brake chamber 510 during the transmission process through the camshaft 520, and improving the braking effect of the brake 500.

[0060] In order to reduce the size of the transmission system and make the entire integrated assembly lighter so that the integrated assembly can be separated from the connecting beam 111, the straddle-type monorail bogie provided in this application embodiment uses a planetary gear reducer 400 for transmission.

[0061] like Figures 5-7 As shown, the planetary gear reducer 400 includes: a sun gear 410, a planetary gear set 420, an external 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 meshes with both the sun gear 410 and the external gear ring 430, and the external gear ring 430 is fixed to the housing 450. The housing 450 is fixed to the housing of the driver 300 by threaded fasteners. The connection is such that when the sun gear 410 rotates, it drives the planetary gear set 420 to revolve around the sun gear 410, and each planet gear of the planetary gear set 420 rotates on its own axis. The planet gears of the planetary gear set 420 are rotatably connected to the planet carrier 440, and the planet carrier 440 is detachably connected to the axle 220 for transmission. This allows the planetary gear set 420 to drive the planet carrier 440 to rotate, and the planet carrier 440 to drive the axle 220 to rotate, thus realizing the transmission of power from the drive 300 to the axle 220.

[0062] To ensure the transmission effect between the planetary carrier 440 and the axle 220, such as Figure 7 As shown, the axle 220 and the planetary carrier 440 are connected by a spline drive, which improves the transmission connection strength between the planetary carrier 440 and the axle 220 and improves the stability of the transmission process. At the same time, after the first fixing member 610 is removed, it is easy for the axle 220 to detach from the planetary carrier 440 along its axial direction, which improves the efficiency of the running wheel 210 detaching from the axle 220, thereby improving the wheel changing efficiency.

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

[0064] To further ensure the transmission performance of the planetary carrier 440, such 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, and meshes with the planetary gears of the planetary gear set 420. The fixed frame 460 and the housing 450 are axially fixed relative to each other. The planet carrier 440 has multiple connecting rods 441 distributed circumferentially. The multiple connecting rods 441 are all connected to the fixed frame 460 by threaded fasteners, which axially limit the planet carrier 440, improve the stability of the planet carrier 440 transmission process, and further improve the transmission effect.

[0065] For example, such as Figure 7As shown, the planetary carrier 440 is provided with five connecting rods 441. The five connecting rods 441 are distributed at equal intervals along the circumference of the planetary carrier 440, which improves the stability of the connection between the planetary carrier 440 and the fixed frame 460 and further improves the transmission effect.

[0066] When the running wheels 210 of the straddle-type monorail bogie provided in this application need to be replaced or 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 component 610 to the connecting beam 111 are first removed, and the first fixing component 610 is removed. Then the bolts connecting the second fixing component 620 to the connecting beam 111 are removed, so that the integrated assembly of the brake 500, the running wheel assembly 200, the planetary gear reducer 400 and the drive 300 is connected to the second fixing component 620. The axle 220 is simultaneously disengaged from the connecting beam 111, and then the connection end between the axle 220 and the brake 500 is pulled out, so that the axle 220, the planetary gear reducer 400 and the driver 300 move out synchronously along the axial direction of the axle 220, so that the running wheel 210 can be disengaged from the connecting beam 111 from below. Within the limited axial space, the running wheel 210 does not need to move axially, and can be directly lowered in the vertical direction. This achieves the disassembly and replacement of the running wheel without disassembly and replacement, saving the time of replacement and improving the efficiency of replacement.

[0067] This application also provides a straddle-type monorail train, which includes the straddle-type monorail bogie described in the above embodiments.

[0068] Since the aforementioned straddle-type monorail bogie has the aforementioned technical effects, and the aforementioned straddle-type monorail train includes the aforementioned straddle-type monorail bogie, the aforementioned straddle-type monorail train also has the corresponding technical effects, which will not be elaborated here.

[0069] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A straddle-type monorail bogie, characterized in that, The application relates to a straddle-type monorail bogie, which comprises 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). The frame assembly (100) comprises a connecting beam (111). The running wheel assembly (200) comprises a running wheel (210), an axle (220) and a wheel hub (230), the running wheel (210) is detachably fixedly connected through the wheel hub (230) and the axle (220), the axle (220) and the driver (300) are drivingly connected through 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 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) detachably connects the connecting beam (111) and the axle (220), the axle (220) and the connecting beam (111) are relatively fixed in the axial direction, the axle (220) can rotate around its axis, and the fixing assembly (600) and the axle (220) are both located on the lower side of the connecting beam (111); the frame assembly (100) has a space for the integrated assembly to disengage from the frame assembly (100) from the lower side of the connecting beam (111). The fixing assembly (600) comprises a first fixing member (610) and a second fixing member (620). The brake (500) comprises a brake air chamber (510), a camshaft (520) and a brake drum (530). The brake drum (530) is arranged in the wheel hub (230), the brake air chamber (510) makes the brake drum (530) open for braking the wheel hub (230) through the camshaft (520). The brake drum (530) and the brake air chamber (510) are distributed on the two sides of the second fixing member (620), and the camshaft (520) penetrates through the second fixing member (620) and connects the brake drum (530) and the brake air chamber (510).

2. The straddle-type monorail bogie according to claim 1, wherein the connecting beam (111) is distributed on the two sides of the running wheel (210); the first fixing member (610) detachably connects the connecting beam (111) and the axle (220) near the first end of the driver (300), and is located between the planetary gear reducer (400) and the running wheel (210); and the second fixing member (620) detachably connects the connecting beam (111) and the axle (220) near the second end of the brake (500). ​ ​ ​ 3. The straddle-type monorail bogie according to claim 2, wherein The second fixing member (620) comprises a second fixing member body (621) and a shaft sleeve (622), the second fixing member body (621) is provided with a through hole (623), the shaft sleeve (622) is located on the side of the second fixing member body (621) close to the brake chamber (510), the shaft sleeve (622) and the through hole (623) are in communication, and the shaft sleeve (622) and the through hole (623) are both for the camshaft (520) to pass through.

4. The straddle-type monorail bogie according to claim 2, wherein The first end of the wheel shaft (220) is provided with a first bearing (710), and the first end of the wheel shaft (220) is rotatably connected to the first fixing member (610) and the connecting beam (111) through the first bearing (710). The second end of the wheel shaft (220) is provided with a second bearing (720), and the second end of the wheel shaft (220) is rotatably connected to the second fixing member (620) and the connecting beam (111) through the second bearing (720).

5. The straddle-type monorail bogie according to claim 1, wherein 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 an outer shell (450). The sun gear (410) is fixedly connected to the output shaft of the driver (300), the planetary gear set (420) is engaged with the sun gear (410), the planetary gear set (420) is engaged with the outer ring gear (430), the outer ring gear (430) is fixed on the outer shell (450), and the outer shell (450) is fixedly connected to the outer shell of the driver (300). The planet gears in the planetary gear set (420) are rotatably arranged on the planet carrier (440), and the planet carrier (440) is detachably connected to the wheel shaft (220) in transmission.

6. The straddle-type monorail bogie according to claim 5, wherein The wheel shaft (220) and the planet carrier (440) are connected in transmission through splines.

7. The straddle-type monorail bogie according to claim 5, wherein The planetary gear reducer (400) further comprises a fixing frame (460), the fixing frame (460) is located between the planetary gear set (420) and the driver (300), and the fixing frame (460) is rotatably connected to the outer shell (450). The planet carrier (440) comprises a connecting rod (441), and the connecting rod (441) is connected to the fixing frame (460) through a threaded fastener.

8. The straddle-type monorail bogie according to claim 1, wherein The fixing assembly (600) is detachably connected to the connecting beam (111) through bolts. The driver (300) is a permanent magnet motor.

9. A straddle-type monorail train, characterized in that it comprises the straddle-type monorail bogie according to any one of claims 1-8.

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