CN220349677U - Wheel-side-driven suspension type empty rail bogie and empty rail vehicle - Google Patents

Abstract

The application discloses wheel-side driven suspension type empty rail bogie and empty rail vehicle, in a certain embodiment, suspension type empty rail bogie includes: the device comprises a framework extending along the running direction, wherein two mounting seats are symmetrically arranged on the framework front and back, and guide wheels and stabilizing wheels are arranged at the front end and the back end of the framework; the driving devices comprise driving motors arranged on two sides in each mounting seat, the output shafts of the driving motors extend outwards, and each driving device is provided with a braking device and a wheel-side speed reducer; and the running devices are arranged on two sides outside each mounting seat and are fixed with the output shafts of the driving motors in a one-to-one correspondence manner. According to the steering bogie steering device, the driving device is arranged on the shaft side of each running device, the overall structure is simplified, the output wheelbase is reduced, the center of the driving motor and the vertical force of the rail surface to the running wheels are located on the same plane, the rotation inertia of the whole steering bogie nodding can be reduced, and the stability of the whole steering bogie running is improved.

Description

Wheel-side-driven suspension type empty rail bogie and empty rail vehicle

Technical Field

The utility model belongs to the technical field of suspended rail transit, and particularly relates to a suspended empty rail bogie driven by a wheel side motor and an empty rail vehicle.

Background

The air track transfers ground traffic into the air, so that the urban traffic problem can be relieved on the basis of no need of expanding the existing highway facilities of the city. The suspended type air rail traffic is one of the structures, the track beam is supported in the air through the ground upright post, the vehicle bogie is positioned in the track beam, the lower end of the track beam is opened, the lower end of the bogie extends out of the opening, the bogie is connected with the vehicle through the suspension device, and the vehicle is suspended below the track beam. Because the space rail traffic occupies little space, the method has good development prospect.

Most of existing suspension type empty rail vehicle bogies use a traditional driving mode of a traction motor and a gear box, the longitudinal length of the bogie is larger due to the existence of the gear box, if the motor is arranged at two ends, the head-turning moment of inertia of the bogie is increased, the wheel base of a travelling wheel is increased due to the arrangement in the middle, and adverse effects on the dynamic performance of the vehicle are caused.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a wheel-side-driven suspension type empty rail bogie and an empty rail vehicle, wherein the wheelbase of each running gear can be reduced by axially arranging a corresponding driving motor, so that the whole structure of the suspension type empty rail bogie is simpler.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

in a first aspect, the present application provides a suspended empty rail bogie comprising:

the framework extends along a first direction, two groups of mounting seats are symmetrically arranged on the framework along the first direction, and guide wheels and stabilizing wheels are arranged at the front end and the rear end of the framework along the first direction;

the driving device comprises driving motors arranged on two sides in each mounting seat, an output shaft of each driving motor extends outwards, and each driving device is provided with a hub speed reducer for controlling the driving motor to transmit the rotating speed to the output shaft and a braking device for controlling the output shaft to reduce the rotating speed;

and the running devices are arranged on two sides outside each mounting seat, and each running device is fixed with the output shaft of each driving motor in a one-to-one correspondence manner.

By adopting the suspension type empty rail bogie of the technical scheme, as the driving device is arranged on the shaft side of the running device, the wheelbase of the running device can be reduced under the condition of omitting the installation of the gearbox, and different torques are transmitted to the running device by the driving device through the cooperation of the wheel edge speed reducer and the braking device, so that the speed of the running device is controlled, and the integral structure is simplified; the rotation center of the driving motor and the vertical force of the rail surface to the running device are on the same plane, so that the rotation inertia of the integral nodding of the bogie can be reduced; in addition, each running device is independently provided with a corresponding driving motor, so that the running devices on two sides have different rotating speeds when the bogie passes through a curve, and the abrasion of the running wheels is reduced.

When the steering device works, the output shaft of the driving motor directly outputs torque to the running device, and friction force generated between the running device and the track beam generates traction force, so that the steering frame is driven to move along a first direction; when in curvilinear motion, the guide wheel and/or the stabilizing wheel are in contact with the side surface of the track to provide a guide effect and/or a stabilizing effect; during braking, the braking device controls the output shaft of the driving motor to reduce the rotating speed to a stop, so that the kinetic energy of the bogie is converted into heat energy through reverse torque, and the motion is stopped; because the rotation speed generated by the driving motor is high, the hub reduction gear can be used for controlling the driving motor to transmit proper rotation speed to the output shaft, thereby adjusting the running speed of the running device.

Further, the braking device includes:

a brake disc fixed to an output shaft of the drive motor;

and a brake caliper which clamps the brake disc by a control force and reduces the rotation speed of the output shaft.

Further, the wheel-side speed reducer is of a planetary gear structure.

Further, the running device includes: a hub, a rim, a support body and a pneumatic rubber tire.

Further, two guide wheels and two stabilizing wheels are respectively arranged at the front end and the rear end of the framework along the first direction, wherein the two guide wheels and the two stabilizing wheels which are positioned at the same end are symmetrically positioned at two sides of the first direction.

In a second aspect, the present application further provides an empty rail vehicle, including a vehicle body, and at least one suspended empty rail bogie as described above, the suspended empty rail bogie being disposed in a rail beam, the lower end of the suspended empty rail bogie being connected to the vehicle body by a suspension device.

Further, the suspension device includes:

the upper end of the suspension beam is connected with the lower end of the framework through a suspension pin shaft, wherein the rotation shaft of the suspension pin shaft is consistent with the movement direction of the vehicle body, and two ends of the suspension beam are provided with transverse elastic stops;

the hanging frames are positioned at the upper ends of the two sides of the hanging beam, the right lower part of the hanging frame is connected with the hanging beam through an air spring, and the two sides of the hanging frame extend downwards and are fixedly connected with the vehicle body;

the anti-swing component is used for limiting the angle of the rotation of the suspension pin shaft to two sides;

a transverse shock absorber and a vertical shock absorber are arranged between the hanging frame and the suspension beam, and an anti-falling safety rope and an anti-overshoot safety rope are arranged between the suspension beam hanger and the framework.

Further, the anti-sway assembly comprises:

anti-swing stops which are oppositely arranged on the side surfaces of the suspension pin shafts on the two sides of the swing of the vehicle body;

and the anti-swing shock absorbers are arranged on two sides of the suspension beam and face the anti-swing stop.

Compared with the prior art, the steering bogie has the advantages that the driving motor is arranged on the shaft side of each running device, compared with the structure provided with the gear box, the output wheelbase can be reduced, the overall structure of the steering bogie is simplified, the center of the driving motor and the vertical force of the rail surface to the running wheels are positioned on the same plane, the moment of inertia of the overall nodding of the steering bogie can be reduced, and the overall running stability of the steering bogie is improved.

Drawings

FIG. 1 is a schematic illustration of an embodiment of a suspended air rail bogie;

FIG. 2 is a schematic structural view of an embodiment of an axial frame;

FIG. 3 is a schematic view of the overall construction of the running gear and the drive device;

FIG. 4 is a schematic diagram of a driving apparatus;

FIG. 5 is a cross-sectional view of the running gear and drive of FIG. 3;

FIG. 6 is a cross-sectional view of the guide wheel;

FIG. 7 is a schematic view of an embodiment of a bogie and suspension apparatus;

fig. 8 is a schematic structural view of the suspension device;

fig. 9 is a schematic structural view of the secondary suspension device in fig. 8.

The figure indicates:

100-frame, 101-mount, 102-lightening hole, 103-drive mount, 200-drive, 211-motor rotor, 212-output shaft, 221-brake disc, 222-brake caliper, 230-hub reduction gear, 231-sun gear, 232-planet wheel, 233-inner gear, 300-running gear, 301-rubber pneumatic tire, 302-hub, 303-rim, 304-support, 400-guide wheel, 401-guide wheel mount, 402-steel ring, 403-bearing, 500-stabilizing wheel, 501-stabilizing wheel mount, 600-suspension device, 601-suspension beam, 602-suspension pin, 603-suspension bracket, 604-air spring, 605-anti-swing stop, 606-anti-swing damper, 607-transverse damper, 608-vertical damper, 609-anti-falling safety cable, 610-anti-overshoot safety cable, 611-traction rod, 612-transverse elastic stop.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model.

As shown in fig. 1 to 5, the present embodiment provides a suspended empty rail bogie, which includes a frame 100, a driving device 200, and a running gear 300.

Referring to fig. 2, the frame 100 is a welded box beam structure, which extends along a first direction, two sets of mounting seats 101 are symmetrically disposed on a body of the frame 100 along the first direction, and two outer sides of each set of mounting seats 101 are provided with driving device 200 mounting seats 103, so that a total of four sets of driving device 200 mounting seats 103 are disposed on the frame 100 for mounting four sets of driving devices 200. The mounting seat 101 may be a through hole penetrating through both sides of the frame 100, or may be a groove formed only on both sides of the frame 100 to mount the driving device 200 and the running device 300.

In some embodiments, a lightening hole 102 may be further formed in the middle of the frame 100, i.e., between the two sets of mounting seats 101, so that the frame 100 resembles a horizontal "mesh" structure, and the lightening hole 102 may reduce the weight of the frame 100 while ensuring strength.

As shown in fig. 3 to 5, each set of mounting seats 101 has a through hole structure penetrating through both sides of the frame 100, four sets of driving devices 200 are respectively fixed on both sides in each set of mounting seats 101 through driving device mounting seats 103, each driving device 200 includes a driving motor facing the inner side of the mounting seat 101, and an output shaft 212 of the driving motor extends toward the outer side of the mounting seat 101 for fixing the running device 300. Each driving device 200 is provided with a hub reduction gear 230 located inside the driving motor and controlling the motor rotor 211 to transmit the rotation speed to the output shaft 212, and a braking device controlling the output shaft 212 to reduce the rotation speed.

As shown in fig. 5, for the hub reduction gear 230, since the motor rotor 211 rotates faster, it is necessary to reduce the steady rotation speed of the output shaft 212 by the hub reduction gear 230. Here, the hub reduction gear 230 controls the rotational speed transmitted from the driving motor to the output shaft 212 like a gear box, and the rotational speed is transmitted to the running gear 300 to obtain a corresponding running speed. In some embodiments, the hub reduction gear 230 may be a planetary gear structure for transmitting speed, and the planetary gear structure generally includes a sun gear 231, a planet gear 232, and an internal gear 233, which are not described herein.

For braking devices that are used to purposefully reduce the rotational speed of the output shaft 212 in order to reduce the travel speed of the running gear 300, such as when a truck is required to slow or stop, it is necessary to control the output shaft 212 by the braking device. As shown in fig. 4, in some embodiments, the braking device may be of the following construction: it includes a brake disc 221 on a fixed output shaft 212, and a brake caliper 222 that clamps the brake disc 221 and decelerates the brake disc 221, where the brake caliper 222 can control clamping of the brake disc 221, such as a brake cylinder, by an external force. When braking, a control signal is sent to the brake cylinder to push the brake caliper 222 to clamp the brake disc 221, so that the rotation speed of the output shaft 212 is reduced, and the bogie is decelerated or stopped.

One running gear 300 is provided on each outwardly extending output shaft 212, so that four sets of driving apparatuses 200 are correspondingly provided with four running gears 300 symmetrically distributed on both sides. As shown in fig. 5, the running gear 300 is a running wheel, the outer layer of the running gear is provided with a pneumatic rubber tire, the inner part is provided with a wheel hub 302, a wheel rim 303 and a supporting body 304, wherein an output shaft 212 of a driving motor is fixed with the wheel hub 302 through bolts, so that torque is transmitted. The rigidity of the supporting body 304 in the walking wheel is larger, the vertical force can be born temporarily after the tyre is damaged, the safe operation of the vehicle to a designated place is ensured, the vertical impact and vibration of the bogie can be effectively reduced by the outer layer of the pneumatic rubber tyre, and the noise in the operation process can be reduced.

With continued reference to fig. 1 and 2, in order to provide guiding and stabilizing effects for the improved bogie, the front and rear ends of the frame 100 along the first direction are provided with guide wheels 400 and stabilizing wheels 500 through guide wheel mounting seats 401 and stabilizing wheel mounting seats 501, and the front end structure of the frame 100 is taken as an example, as shown in the drawing, two guide wheels 400 are located below two stabilizing wheels 500 and symmetrically distributed on both sides in the first direction, the rotation shafts of the two guide wheels 400 are longitudinally arranged so that the guide wheels 400 act on both side walls of the track beam, and when the bogie is in curved running, both side walls of the track beam provide transverse forces for the guide wheels 400 to guide the curved motion along the track direction. Considering that the bogie is cornered in a curved turn, it is necessary to prevent the bogie from turning sideways by means of the stabilizing wheels 500, and specifically, the lateral distance between the two stabilizing wheels 500 at the front end is slightly smaller than that between the two guide wheels 400, so that when the bogie is cornered to one side, the stabilizing wheels 500 act on the side walls of the track beam at the side of the yaw, and thus lateral forces are obtained to prevent the bogie from being further cornered, and therefore, when the bogie is traveling straight, only the guide wheels 400 act on the side walls of the track beam, and the stabilizing wheels 500 do not contact the track beam.

The guide wheel 400 and the stabilizing wheel 500 in the above embodiment may have the same structure, and preferably, the guide wheel 400 is taken as an example, as shown in fig. 6, the outer layer of the guide wheel 400 is a solid tire, and a steel ring 402 and a bearing 403 are disposed inside the outer layer.

In the above embodiment, the first direction is the driving direction of the bogie, the running gear 300 is located at the left and right sides of the driving direction, and the guide wheel 400 and the stabilizing wheel 500 are located at the front and rear ends of the driving direction.

As shown in fig. 7-9, this embodiment provides an air rail vehicle, including a plurality of suspension air rail bogies provided in any one of the embodiments, when in use, the plurality of suspension air rail bogies are disposed in a rail beam, and the lower ends of the plurality of suspension air rail bogies are respectively connected with a vehicle body below through suspension devices 600, so that when the plurality of suspension air rail bogies run in the rail beam, the plurality of suspension air rail bogies can drive the vehicle body right below to move. The suspension type empty rail bogie of the embodiment has the advantage of stable running, and can naturally improve the running stability of the vehicle.

The suspension device 600 is preferably provided with a secondary suspension device, and such a suspension device 600 can improve stability and safety of connection between the bogie and the vehicle body.

As shown in fig. 8 and 9, this embodiment shows a suspension device 600 including a suspension beam 601, a hanger 603, a swing-resistant assembly, and a shock absorber, a safety line, and the like.

The upper end of the suspension beam 601 is rotatably connected to the lower end of the frame 100, for example, by a suspension pin 602, wherein the extension direction of the rotation axis of the suspension pin 602 is consistent with the movement direction of the vehicle body, so that the vehicle body can only swing on both sides of the movement direction.

The lower end of the suspension beam 601 is connected with the vehicle body through a traction pull rod 611.

The suspension beam 601 is provided with lateral elastic stoppers 612 at both ends (i.e., both sides in the direction of travel of the bogie) for limiting the lateral displacement range of the vehicle body.

The two hanging frames 603 are respectively arranged at the upper ends of two sides of the hanging beam 601, the right lower part of the hanging frame 603 is connected with the hanging beam 601 through vibration reduction components such as air springs 604, and the two sides of the hanging frame 603 extend downwards and are fixedly connected with a vehicle body.

Since the rotation angle of the suspension pin 602 determines the swing amplitude of the vehicle body toward two sides, in order to avoid the excessive swing amplitude of the vehicle body toward two sides, an anti-swing component for limiting the rotation angle of the suspension pin 602 needs to be provided.

In some embodiments, the anti-sway component may be of the following structure: it includes a swing-resisting stop 605 arranged oppositely on the side of a suspension pin 602 on both sides of the swing of the vehicle body, and a swing-resisting damper 606 arranged on both sides of a suspension beam 601 and facing the swing-resisting stop 605. When the vehicle body swings to one side, the suspension pin shaft 602 also rotates to the side, and the anti-swing stop 605 of the suspension pin shaft 602 at the other side is blocked by the anti-swing damper 606, so that the suspension pin shaft 602 can be prevented from further rotating, further the vehicle body is prevented from swinging to a larger extent, and side turning is prevented.

Meanwhile, the transverse shock absorber 607 and the vertical shock absorber 608 are arranged between the hanging frame 603 and the hanging beam 601, so that vibration of the vehicle body relative to the hanging beam 601 in the transverse and vertical directions can be reduced, the anti-falling safety rope 609 and the anti-overshoot safety rope 610 are arranged between the hanging beam hanger and the framework 100, the vehicle body and the framework 100 can be prevented from falling off after the hanging pin shaft 602 is accidentally broken through the anti-falling safety rope 609, and the vehicle body can be prevented from impacting the hanging type empty rail bogie in the vertical direction through the anti-overshoot safety rope 610.

The above describes in detail a wheel-side driven suspended empty rail bogie and an empty rail vehicle provided by the present application. The description of the specific embodiments is only intended to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims (8)

1. A suspended air rail bogie, comprising:

the framework (100) extends along a first direction, two groups of mounting seats (101) are symmetrically arranged on the framework (100) along the first direction, and guide wheels (400) and stabilizing wheels (500) are arranged at the front end and the rear end of the framework (100) along the first direction;

the driving device (200) comprises driving motors arranged on two sides in each group of mounting seats (101), an output shaft (212) of each driving motor extends outwards, and each driving device (200) is provided with a hub reduction gear (230) for controlling the driving motor to transmit rotating speed to the output shaft (212) and a braking device for controlling the output shaft (212) to reduce the rotating speed;

and running devices (300) which are arranged on two sides outside each mounting seat (101), wherein each running device (300) is fixed with an output shaft (212) of each driving motor in a one-to-one correspondence manner.

2. The suspended air rail bogie of claim 1, wherein the braking device comprises:

a brake disc (221) fixed to an output shaft (212) of the drive motor;

and a brake caliper (222) which clamps the brake disc (221) by a control force and reduces the rotation speed of the output shaft (212).

3. Suspended hollow rail bogie according to claim 1 or 2, characterized in that the wheel-side reducer (230) is of planetary gear construction.

4. Suspended hollow rail bogie according to claim 1, characterized in that the running gear (300) comprises: a hub (302) positioned on the inner layer, a rim (303), a support body (304) and a pneumatic rubber tire positioned on the outer layer.

5. The suspended hollow rail bogie according to claim 1, wherein the frame (100) is provided with two guide wheels (400) and two stabilizing wheels (500) at front and rear ends along the first direction, respectively, wherein the two guide wheels (400) and the two stabilizing wheels (500) at the same end are symmetrically located at both sides of the first direction.

6. An air rail vehicle comprising a vehicle body, characterized in that it further comprises at least one suspended air rail bogie according to any one of claims 1-5, said suspended air rail bogie being placed in a rail beam, the lower end of which is connected to the vehicle body by means of a suspension device (600).

7. An empty rail vehicle as claimed in claim 6, characterized in that the suspension device (600) comprises:

the upper end of the suspension beam (601) is connected with the lower end of the framework (100) through a suspension pin shaft (602), wherein the rotation axis of the suspension pin shaft (602) is consistent with the movement direction of the vehicle body, and two ends of the suspension beam (601) are provided with transverse elastic stops (612);

the hanging frames (603) are positioned at the upper ends of two sides of the hanging beam (601), the right lower parts of the hanging frames (603) are connected with the hanging beam (601) through air springs (604), and the two sides of the hanging frames (603) extend downwards and are fixedly connected with a vehicle body;

an anti-swing component for limiting the angle of rotation of the suspension pin shaft (602) to both sides;

a transverse shock absorber (607) and a vertical shock absorber (608) are arranged between the hanging frame (603) and the hanging beam (601), and an anti-falling safety rope (609) and an anti-overshoot safety rope (610) are arranged between the hanging beam (601) and the framework (100).

8. The air rail vehicle of claim 7, wherein the anti-sway assembly comprises:

anti-swing stops (605) which are oppositely arranged on the side surfaces of the suspension pin shafts (602) on the two sides of the swing of the vehicle body;

anti-sway damper (606) provided on both sides of the suspension beam (601) and facing the anti-sway stop (605).