Bogie suspension beam suitable for monorail suspended vehicles

Abstract

The present invention provides an intermediate bogie suspension beam suitable for a monorail suspended vehicle, which is located between the bogie and the vehicle body and includes a suspension beam main body in the middle, a vehicle body hanger, a anti-roll damper seat, a connecting seat, secondary springs, helical coil springs, a vertical hydraulic damper mounting seat, a vertical hydraulic damper, and anti-roll stops. The present invention provides a design method for the suspension beam, especially for a suspended vehicle with three bogies. Since the intermediate bogie will generate a relatively large free displacement relative to the vehicle body, it is easier for the suspended vehicle to pass through curves.

Description

Technical Field

[0001] The present invention relates to the field of rail transit, and particularly to a bogie suspension beam suitable for a monorail suspended vehicle. Background Art

[0002] With the acceleration of the urbanization process, the urban area has increased rapidly. The emergence of a large number of private cars has made the urban traffic worse and worse, and the subsequent urban traffic problems have become increasingly serious. At this time, public transportation systems similar to taxis and buses are not suitable for the current urban traffic. Therefore, a rail transit system with a larger transport capacity and more time-saving has become the main force of urban traffic. Urban rail transit has a large transport capacity and is punctual. Since most of the tracks of urban rail transit are underground or on viaducts, the impact on the road surface is relatively small. Therefore, it has become the main force for passenger and freight transportation. On this basis, a new type of rail vehicle has emerged, which is the monorail suspended vehicle.

[0003] The monorail suspended vehicle is very different from the traditional urban rail vehicle. First of all, the bogie of the suspended vehicle is located above the vehicle body and is wrapped by a sealed track beam. Therefore, it can run regardless of the weather, even in some bad weather. At the same time, this vehicle is also suitable for rail transportation between cities. For this new type of rail vehicle, since the vehicle body is below the bogie, a suspension device needs to be added between the bogie and the vehicle body to connect the vehicle body and the bogie together; at the same time, since urban rail transit often has small-radius curves, when using a formation of three bogies, that is, B0-B0-B0 (which can also be abbreviated as 3B0, that is, among the three bogies, each bogie has two driving axles), the middle bogie needs a relatively large lateral free displacement, and a transverse movement device that can move freely laterally needs to be added to the suspension beam to ensure the required lateral free displacement. Summary of the Invention

[0004] To achieve the above invention purposes, the technical solution of the present invention is as follows:

[0005] A bogie suspension beam suitable for a monorail suspended vehicle, located between the bogie and the car body, includes a suspension beam main body 12 in the middle, and car body hangers 11 vertically arranged on both sides of the suspension beam main body 12. The top of the suspension beam main body 12 is rotationally connected to the upper bogie through a suspension pin 1. Anti-roll yaw dampers seats are welded on both sides of the suspension beam main body 12 near the suspension pin. The bottom of the anti-roll yaw damper 2 is connected to the anti-roll yaw dampers seat in a pin-connected form, and the upper part of the anti-roll yaw damper 2 is hinged to the bolster suspension beam mounting seat 21; the lower part of the car body hanger 11 is connected to the car body connection seat 5 through a pin, and the car body connection seat 5 is welded to the car body. The secondary suspension 10 is vertically installed between the car body hanger 11 and the suspension beam main body 12; the helical coil spring 15 is vertically installed between the car body hanger 11 and the suspension beam main body 12. Vertical hydraulic damper mounting seats 20 are welded on the car body hanger 11 and the suspension beam main body 12. One end of the vertical hydraulic damper 4 is installed on the car body hanger 11 in a hinged form, and one end is installed on the suspension beam main body 12 in a hinged form; anti-roll yaw stops 8 are also provided on both sides of the suspension beam main body 12 near the suspension pin 1. The protruding part in the anti-roll yaw stop 8 contacts the bolster suspension beam mounting seat 21, which is used to limit the extreme position of the car body yaw.

[0006] As a preferred method, a lateral stop 9 is welded on the car body. When the car body yaws to the extreme position, the lateral stop 9 will collide with the suspension beam 12 to limit the maximum lateral displacement between the car body and the suspension beam.

[0007] As a preferred method, an anti-roll bar 13 is horizontally arranged between the car body hangers 11 to eliminate abnormal roll of the car body.

[0008] As a preferred method, an anti-torsion damper 3 is installed between the front of the suspension beam main body 12 and the car body hanger 11. One end of the anti-torsion damper 3 is installed on the suspension beam main body 12 through a pin, and the other end is installed on the car body hanger 11 through a pin.

[0009] As a preferred method, the lower part of the suspension beam main body 12 is the car body. A traction rod mounting seat 6 is installed between the bottom of the suspension beam main body 12 and the car body. One end of the traction rod 7 is installed on the suspension beam main body 12 in a pin-connected form, and the other end is installed on the car body. The traction rod 7 is perpendicular to the connection line of the centers of the two car body hangers.

[0010] As a preferred method, a lateral movement device 14 is provided inside the car body hanger 11. The lateral movement device 14 includes a helical coil spring 15, a roller device 16 and a chain bolt device 17 at the bottom of the helical coil spring 15. The roller seat of the lateral movement device 14 is welded below the helical coil spring 15. The rollers inside the roller device 16 are in direct contact with the lower suspension beam main body 12. Bearings are provided at both ends of the rollers inside the roller device 16, allowing the roller structure to roll in the chute 18.

[0011] As a preferred embodiment, the main body 12 of the suspension beam includes a neck and two symmetrical branches on the left and right below the neck.

[0012] As a preferred embodiment, the protruding part of the anti-yaw stopper 8 is made of rubber.

[0013] As a preferred embodiment, the car body hanger 11 includes a horizontal part in the middle and two vertical side walls below the horizontal part.

[0014] The working principle of the present invention is as follows: When the bogie passes through a curve, since the roller mechanism is provided on the middle bogie, when passing through the curve, the car body and the suspension beam will deflect under the action of centrifugal force. However, due to the existence of the roller mechanism, the car body will drive the roller mechanism to slide in the chute of the suspension beam. At the same time, the chain bolt mechanism will ensure the translational movement and safety of the bottom of the bolt round spring. Therefore, a relative displacement will occur again between the car body and the suspension beam, which will improve the curve passing ability of the bogie.

[0015] The anti-yaw damper 2 and the anti-yaw damper seat are connected together in a pin-connected form to offset the large yaw of the car body generated when passing through a curve. The secondary spring 10 is used to absorb and transmit the vertical load during the operation of the vehicle. The protruding part of the anti-yaw stopper 8 is made of rubber and is used to prevent yaw when the yaw of the car body is severe.

[0016] When the car body has severe yaw, the maximum lateral movement displacement between the car body and the suspension beam 12 is restricted by relying on the lateral stopper 9; at the same time, an anti-roll torsion bar 13 is also installed between the car body hangers 11 to eliminate the abnormal roll of the car body.

[0017] One end of the traction link 7 is installed on the suspension beam 12 in a pin-connected form, and the other end is installed on the car body, so as to transmit the traction force and braking force.

[0018] When the suspended vehicle of the monorail passes through a curve, the middle bogie will have a relatively large lateral free offset relative to the car body. The secondary suspension does not move laterally relative to the car body, while the suspension beam moves laterally freely relative to the secondary steel round spring. The roller of the lateral movement device rolls along the chute 18 on the suspension beam for a certain distance to achieve the lateral free offset of the bogie relative to the car body. When the offset of the bogie reaches the maximum position, the chute on the suspension beam will limit the continuous rolling of the roller, so that the lateral free displacement of the bogie relative to the car body will not increase. At the same time, since most of the components of the two suspension beams are the same, the parts of the two can be partially interchanged.

[0019] The beneficial effects of the present invention are as follows: The present invention is applicable to monorail suspended vehicles, providing a design solution for the intermediate bogie of monorail suspended vehicles, especially applicable to the formation of B0-B0-B0 (an abbreviation where each of the three bogies has two driving axles), which is beneficial to improving the curve passing performance of the entire vehicle. Description of the Drawings

[0020] Figure 1 It is the overall structure diagram of the suspension beam of the intermediate bogie of the present invention.

[0021] Figure 2 It is the axonometric drawing of the suspension beam of the intermediate bogie of the present invention.

[0022] Figure 3 It is the rear view of the suspension beam of the intermediate bogie of the present invention.

[0023] Figure 4 It is the side view of the suspension beam of the intermediate bogie of the present invention.

[0024] Figure 5 The roller part of the lateral movement device of the present invention.

[0025] Figure 6 It is the mounting seat of the bolster suspension beam of the present invention.

[0026] Among them, 1 is the suspension pin, 2 is the anti-yaw damper, 3 is the anti-torsion damper, 4 is the vertical hydraulic damper, 5 is the carbody connection seat, 6 is the traction rod mounting seat, 7 is the traction rod, 8 is the anti-yaw stop, 9 is the lateral stop, 10 is the secondary suspension, 11 is the carbody hanger, 12 is the main body of the suspension beam, 13 is the anti-roll torsion bar, 14 is the lateral movement device, 15 is the helical coil spring, 16 is the roller device, 17 is the chain bolt device, 18 is the chute, 20 is the mounting seat of the vertical hydraulic damper, and 21 is the mounting seat of the bolster suspension beam. Specific Embodiments

[0027] The following uses specific specific examples to illustrate the embodiments of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0028] An intermediate bogie suspension beam suitable for a monorail suspended vehicle, located between the bogie and the car body, includes a suspension beam main body 12 in the middle, and car body suspension brackets 11 vertically arranged on both sides of the suspension beam main body 12. The car body suspension bracket 11 includes a horizontal part in the middle and two vertical side walls below the horizontal part. The top of the suspension beam main body 12 is rotatably connected to the upper bogie through a suspension pin 1. Anti-roll yaw dampers seats are welded on both sides of the suspension beam main body 12 near the suspension pin. The bottom of the anti-roll yaw damper 2 is connected to the anti-roll yaw dampers seat in a pin-connected form, and the upper part of the anti-roll yaw damper 2 is hinged to the bolster suspension beam mounting seat 21; the lower part of the car body suspension bracket 11 is connected to the car body connection seat 5 through a pin, and the car body connection seat 5 is welded to the car body. The secondary suspension 10 is vertically installed between the car body suspension bracket 11 and the suspension beam main body 12; the helical coil spring 15 is vertically installed between the car body suspension bracket 11 and the suspension beam 12. Vertical hydraulic damper mounting seats 20 are welded on the car body suspension bracket 11 and the suspension beam main body 12. One end of the vertical hydraulic damper 4 is installed on the car body suspension bracket 11 in a hinged form, and the other end is installed on the suspension beam main body 12 in a hinged form; anti-roll yaw stops 8 are also provided on both sides of the suspension beam main body 12 near the suspension pin 1. The protruding part of the anti-roll yaw stop 8 is made of rubber, and the protruding part of the anti-roll yaw stop 8 will contact the bolster suspension beam mounting seat 21 to limit the extreme position of the car body yaw.

[0029] As a preferred method, a lateral stop 9 is welded on the car body. When the car body yaws to the extreme position, the lateral stop 9 on the car body will collide with the suspension beam 12 to limit the maximum lateral displacement between the car body and the suspension beam.

[0030] As a preferred method, an anti-roll bar 13 is horizontally arranged between the car body suspension brackets 11 to eliminate abnormal roll of the car body.

[0031] As a preferred method, an anti-torsion damper 3 is installed between the front of the suspension beam main body 12 and the car body suspension bracket 11. One end of the anti-torsion damper 3 is installed on the suspension beam main body 12 through a pin, and the other end is installed on the car body suspension bracket 11 through a pin.

[0032] As a preferred method, the lower part of the suspension beam main body 12 is the car body. A traction rod mounting seat 6 is installed between the bottom of the suspension beam main body 12 and the car body. One end of the traction rod 7 is installed on the suspension beam main body 12 in a pin-connected form, and the other end is installed on the car body. The traction rod 7 is perpendicular to the connection line of the centers of the two car body suspension brackets.

[0033] As a preferred embodiment, a lateral movement device 14 is provided inside the car body hanger 11. The lateral movement device 14 includes a helical coil spring 15, a roller device 16 and a chain bolt device 17 at the bottom of the helical coil spring 15. The roller seat of the lateral movement device 14 is welded below the helical coil spring 15. The rollers inside the roller device 16 are in direct contact with the lower suspension beam main body 12. Bearings are provided at both ends of the rollers inside the roller device 16, allowing the roller structure to roll in the chute 18.

[0034] The suspension beam main body 12 includes a neck and two symmetric branches on the left and right below the neck. It is welded by several steel plates.

[0035] The working principle of the present invention is as follows: When the bogie passes through a curve, due to the roller mechanism provided on the middle bogie, when passing through the curve, the car body and the suspension beam will deflect under the action of centrifugal force. However, due to the existence of the roller mechanism, the car body will drive the roller mechanism to slide in the chute of the suspension beam. At the same time, the chain bolt mechanism will ensure the translational movement and safety at the bottom of the bolt coil spring. Therefore, a relative displacement will occur again between the car body and the suspension beam, which will improve the curve passing ability of the bogie.

[0036] The anti-yaw damper 2 and the anti-yaw damper seat are connected together in a pin-connected form to offset the large yaw of the car body generated when passing through a curve. The secondary spring 10 is used to absorb and transmit the vertical load during vehicle operation. The protruding part of the anti-yaw stop 8 is made of rubber and is used to prevent yaw when the car body yaw is severe.

[0037] When the car body has severe yaw, the maximum lateral movement displacement between the car body and the suspension beam main body 12 is restricted by relying on the lateral stop 9; at the same time, an anti-roll torsion bar 13 is also installed between the car body hangers 11 to eliminate abnormal roll of the car body.

[0038] One end of the traction link 7 is installed on the suspension beam main body 12 in a pin-connected form, and the other end is installed on the car body to transmit the traction force and braking force.

[0039] When the suspended monorail vehicle passes through a curve, the middle bogie will have a relatively large lateral offset relative to the car body. The secondary suspension does not move laterally relative to the car body, while the suspension beam moves laterally relative to the secondary steel coil spring. The rollers of the lateral movement device roll along the chute 18 on the suspension beam for a certain distance to achieve the lateral offset of the bogie relative to the car body. When the offset of the bogie reaches the maximum position, the roller stop on the suspension beam restricts the rollers from continuing to roll, so that the lateral movement displacement of the bogie relative to the car body no longer expands. At the same time, since most of the components of the two suspension beams are the same, some of the parts of the two can be interchanged.

[0040] The present invention is applicable to monorail suspended vehicles, and provides a design solution for the intermediate bogie of monorail suspended vehicles, especially applicable to the formation of B0-B0-B0 (abbreviation for each of the three bogies with two driving axles), which is beneficial to improving the curve passing performance of the entire vehicle.

[0041] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A bogie suspension beam suitable for a monorail suspended vehicle, located between the bogie and the car body, characterized in that: It includes a suspension beam main body (12) in the middle, and car body hangers (11) vertically arranged on both sides of the suspension beam main body (12). The top of the suspension beam main body (12) is rotationally connected to the upper bogie through a hinge pin (1). Anti-roll yaw dampers seats are welded on both side surfaces of the suspension beam main body (12) near the suspension beam pin (1). The bottom of the anti-roll yaw damper (2) is connected to the anti-roll yaw dampers seat in a pin-connected form. The upper part of the anti-roll yaw damper (2) is hinged to the bolster suspension beam mounting seat (21); the lower part of the car body hanger (11) is connected to the connecting seat (5) through a pin. The connecting seat (5) is welded to the car body. The secondary suspension (10) is vertically installed between the car body hanger (11) and the suspension beam main body (12); the helical coil spring (15) is vertically installed between the car body hanger (11) and the suspension beam main body (12). Vertical hydraulic damper mounting seats (20) are welded on the car body hanger (11) and the suspension beam main body (12). One end of the vertical hydraulic damper (4) is installed on the car body hanger (11) in a hinged form, and the other end is installed on the suspension beam main body (12) in a hinged form; on both side surfaces of the suspension beam main body (12) near the suspension beam pin (1), anti-roll yaw stops (8) are also provided. The protruding part in the anti-roll yaw stop (8) contacts the bolster suspension beam mounting seat (21) to limit the extreme position of the car body yaw. A lateral stop (9) is welded on the car body. When the car body yaws to the extreme position, the lateral stop (9) on the car body will collide with the suspension beam main body (12) to limit the maximum lateral displacement between the car body and the suspension beam. A lateral movement device (14) is provided inside the car body hanger (11). The lateral movement device (14) includes a helical coil spring (15), a roller device (16) and a chain bolt device (17) at the bottom of the helical coil spring (15). The roller seat of the lateral movement device (14) is welded below the helical coil spring (15). The rollers inside the roller device (16) are in direct contact with the lower suspension beam main body (12). Bearings are provided at both ends of the rollers inside the roller device (16) to allow the roller structure to roll in the chute (18).

2. The bogie suspension beam suitable for a monorail suspended vehicle according to claim 1, characterized in that: An anti-roll bar (13) is horizontally arranged between the car body hangers (11).

3. The bogie suspension beam suitable for a monorail suspended vehicle according to claim 1, wherein: An anti-torsion damper (3) is installed between the front of the suspension beam main body (12) and the car body hanger (11). One end of the anti-torsion damper (3) is installed on the suspension beam main body (12) in a hinged form, and the other end is installed on the car body hanger (11) through a pin.

4. A bogie suspension beam suitable for a monorail suspended vehicle according to claim 1, characterized in that: Below the suspension beam main body (12) is the car body. A traction rod mounting seat (6) is installed between the bottom of the suspension beam main body (12) and the car body. One end of the traction rod (7) is installed on the suspension beam main body (12) in a pin-connected form, and the other end is installed on the car body. The traction rod (7) is perpendicular to the connection line of the centers of the two car body hangers.

5. The bogie suspension beam suitable for a monorail suspended vehicle according to claim 1, wherein: The main body (12) of the suspension beam includes a neck and two symmetric branches on the left and right below the neck.

6. The bogie suspension beam suitable for a monorail suspended vehicle according to claim 1, characterized in that: The protruding part in the anti-roll yaw stop (8) is made of rubber.

7. A bogie suspension beam suitable for a monorail suspended vehicle according to claim 1, characterized in that: The car body hanger (11) includes a horizontal part in the middle and two vertical side walls below the horizontal part.

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