CN213323113U

CN213323113U - Traction suspension device of straddle type monorail vehicle

Info

Publication number: CN213323113U
Application number: CN202020881483.1U
Authority: CN
Inventors: 张冲; 张宁; 张永亮; 霍育锋
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2020-05-24
Filing date: 2020-05-24
Publication date: 2021-06-01
Anticipated expiration: 2030-05-24

Abstract

The utility model relates to a straddle type monorail vehicle's traction linkage comprises draw gear, connecting device, damping spring, vertical bumper shock absorber, horizontal bumper shock absorber, side fender device, anti side roll torsion bar, and it is good that traction linkage has vertical, lateral stability, and the curve trafficability characteristic is good, realizes functions such as bearing, direction, traction of unipolar bogie. The traction device adopts a plane four-bar linkage device, and the longitudinal traction bar is a single traction bar and is used for transmitting traction force and braking force and adapting to the displacement between the vehicle body and the bogie on the curve. The connecting device is connected with the bogie frame and the vehicle body, and the front and rear nodding angles of the single-shaft bogie are prevented from being too large on the premise of not influencing shock absorption. The damping spring and the vertical damper realize vertical buffering, and the transverse damper transversely buffers. The side blocking device limits overlarge transverse displacement between the vehicle body and the bogie. The anti-rolling torsion bar provides anti-rolling capability, and prevents the car body from having overlarge roll angle when passing through a track with a small curve radius or being influenced by lateral strong wind.

Description

Traction suspension device of straddle type monorail vehicle

Technical Field

The utility model relates to a have that vertical, roll stability is good, and the curve trafficability characteristic is good, simple structure is reliable strides a formula monorail vehicle's the linkage that pulls belongs to the single monorail vehicle's that strides a formula linkage field of making.

Background

The straddle type monorail bogie commonly used at present is divided into a double-shaft bogie in a Hitachi mode and a single-shaft bogie in a Ponbadi mode according to types. The suspension system of the Hitachi mode bogie adopts a membrane type air spring, and provides vertical and transverse buffer functions at the same time, and the traction device adopts a rubber pile to transfer longitudinal force between a vehicle body and the bogie. The bombardier suspension system adopts a hourglass-type rubber spring and provides vertical and transverse buffering functions at the same time. The traction device adopts a spatial four-bar linkage to transmit longitudinal force between the vehicle body and the bogie, and simultaneously restrains nodding movement between the bogie and the vehicle body.

The single-axle bogie can enable the running track of the tire at the curve to be more matched with the track beam, reduce the running resistance and the abrasion of the tire, reduce the noise and the vibration and enable the comfort level to be higher. The single-shaft bogie traveling wheels occupy the middle position, so that traction rubber piles cannot be arranged, and the bombardier space four-bar traction device is of a space structure, so that the structure is complex, the installation precision is high, the matching difficulty is high, and the cost is high.

Disclosure of Invention

The design purpose is as follows: the defects in the prior art are avoided, and the traction suspension device of the straddle type monorail vehicle is vertical, good in transverse stability, good in curve trafficability and simple and reliable in structure.

The design scheme is as follows: the straddle type monorail system has the advantages of small turning radius, strong climbing capability, light and handy bridge, good landscape, rubber tires, low noise and the like, and is widely applied to urban rail transit with medium and low traffic volume, tour and sightseeing, airport ferry and the like.

The traction suspension device of the straddle type monorail vehicle is an important mechanism for connecting a bogie and a vehicle body, has the functions of transmitting traction force, braking force, bearing the weight of the vehicle body, buffering vibration and shock absorption during the running of the vehicle and the like, and can improve the riding comfort of the vehicle. Whether the design of the traction suspension device is reasonably and directly related to the transmission of vertical force and longitudinal force or not, and the design of the traction suspension device must meet the requirements of kinematics, dynamics, safety and the like.

The utility model discloses in structural design, draw gear adopts plane four-bar linkage, and longitudinal traction lever is single traction lever for shift between automobile body and the bogie on transmission traction force and braking force and the adaptation curve. The connecting device is arranged on the front side and the rear side of the bogie and is used for connecting the bogie frame and the vehicle body, so that the front and rear nodding angles of the single-shaft bogie are prevented from being too large on the premise of not influencing shock absorption. The damping spring is used for bearing the vertical load of the vehicle body, and the vertical shock absorber and the transverse shock absorber are used for vertical buffering and transverse buffering. The side blocking device limits overlarge transverse displacement between the vehicle body and the bogie. The anti-rolling torsion bar provides anti-rolling capability, and prevents the car body from having overlarge roll angle when passing through a track with a small curve radius or being influenced by lateral strong wind.

The technical scheme is as follows: a traction suspension device of a straddle-type monorail vehicle comprises a traction device, a connecting device, a damping spring, a vertical damper, a transverse damper, a side blocking device, an anti-side-rolling torsion bar and a spring upper plate; four groups of damping springs are arranged at four corners of a bogie frame, bases of the damping springs are connected with a spring mounting surface of the bogie frame, the upper parts of the damping springs are in contact connection with an upper spring plate, four groups of vertical dampers are arranged on the inner sides of the damping springs, one ends of the vertical dampers are connected with a bogie frame mounting seat, the other ends of the vertical dampers are connected with a corresponding mounting seat of the upper spring plate, two groups of transverse dampers are horizontally arranged between the front and rear two groups of vertical dampers, one ends of the transverse dampers are connected with the bogie frame mounting seat, the other ends of the transverse dampers are connected with the corresponding mounting seat of the upper spring plate, and the upper spring plate is connected; two groups of traction mounting seats of the traction device are connected with mounting plates on the traction supporting legs, the traction supporting legs are connected with a vehicle body, the switching support is connected with the mounting seats through traction pin shafts, one ends of two groups of longitudinal pull rods are connected with the mounting seats on the bogie frame, one ends of the two groups of longitudinal pull rods are connected with the switching support, the two groups of switching support are connected through cross pull rods, and longitudinal traction, braking and mutual dislocation of curves between the vehicle body and the bogie frame are achieved.

The utility model discloses compare with the background art, firstly the utility model provides a single-axle bogie can't arrange the problem of central towing pin, avoid the upper and lower vertical traction lever structure of space four-bar linkage complicated, the high problem of required precision again. The whole traction suspension device has the advantages of simple structure, high reliability, good comfort, low cost and the like, and realizes the functional requirements of traction, steering, shock absorption, buffering and the like between the bogie and the vehicle body; the concrete expression is as follows: firstly, compact structure is simple: the planar four-bar linkage is adopted, and the longitudinal traction rod is a single traction rod, so that the problem that a central traction pin cannot be arranged on the single-shaft bogie is solved, and the problems that the upper longitudinal traction rod and the lower longitudinal traction rod of the spatial four-bar linkage are complex in structure, high in precision requirement and high in matching difficulty are solved; secondly, installation integrated design: the damping spring, the transverse and vertical shock absorbers, the anti-side-rolling torsion bar and other mounting seats are integrally arranged on the upper spring cover plate, and vehicle body mounting seats are not required to be designed respectively, so that the structure is more compact, the occupied space is reduced, and the assembly is convenient; connecting devices are arranged between the front side and the rear side of the bogie and the vehicle body, so that the front and rear nodding angles of the single-shaft bogie are prevented from being too large on the premise of not influencing shock absorption; and fourthly, a special-shaped anti-rolling torsion bar is adopted, the requirement of installation in a smaller space is met, the anti-rolling capability is provided, and the overlarge roll angle of the vehicle body when the vehicle body passes through a track with a small curve radius or is influenced by lateral strong wind is avoided.

Drawings

FIG. 1 is a schematic drawing of a traction suspension structure of a traction suspension device of a straddle-type monorail vehicle.

FIG. 2 is a schematic view of a traction suspension of the straddle type monorail vehicle.

Fig. 3 is a schematic view of the structure of the connecting device.

Fig. 4 is a schematic view of a damper spring structure.

Fig. 5 is a schematic view of a side rail mounting structure.

Fig. 6 is a schematic structural view of the side blocking device.

FIG. 7 is a schematic view of the anti-roll torsion bar structure of the traction suspension device of the straddle-type monorail vehicle.

Detailed Description

Example 1: reference is made to fig. 1-7. The straddle type monorail vehicle traction suspension device comprises a traction device 4, a connecting device 5, a damping spring 6, a vertical damper 7, a transverse damper 8, a side blocking device 9, an anti-rolling torsion bar 10 and the like. For connection are the bogie frame 2 and the vehicle body 12.

The lower end of the damping spring 6 is connected with the bogie frame 2, the upper part of the damping spring 6 is connected with the upper spring plate 11 in a contact way, and the upper spring plate 11 is connected with the vehicle body 13. The bogie frame receives vertical loads of the vehicle body 13 through the damper springs 6. An upper spring seat 6.5 of the damping spring 6 is inserted into a sleeve of the base 6.1, the upper spring seat 6.5 moves horizontally along with the base 6.1, and the friction plate 6.7 slides and rubs with the upper spring plate 11. The restriction of the horizontal rotational degree of freedom by the damper spring 6 is released. The damping spring 6 is internally provided with a rubber sleeve 6.4, so that compression limiting under the limit working condition is realized.

Damping spring 6 cooperates vertical bumper shock absorber 7 and horizontal bumper shock absorber 8 combined action, realizes the vertical and horizontal absorbing travelling comfort of vehicle.

The front side and the rear side of the bogie frame 2 are provided with the connecting devices 5, the connecting devices 5 are of universal structures, relative movement between the bogie frame 2 and a vehicle body 13 is allowed when a vehicle turns, certain free allowance is reserved in the height direction, and the over-large nodding angle of the bogie is restrained under the condition that the damping of the spring device is not influenced.

The side blocking devices are arranged on the left side and the right side of the center of the bogie frame, the side blocking supports 9.1 are connected with the upper spring plate 11 in a welding mode, the upper spring plate 11 is connected with the bogie body 13, and the mounting seats 9.4 are connected with the bogie frame 2 in a welding mode. The dog 9.2 is installed on mount pad 9.4, is provided with adjusting pad 9.3 between dog 9.2 installation and mount pad 9.4 for adjust the distance between dog 9.2 and the side fender support 9.1. Realize the horizontal spacing between automobile body and the bogie frame.

The traction device adopts a plane four-bar structure. Two longitudinal tie rods 4.5 and a cross bar 4.6 are connected with the switching bracket 4.3. When the bogie frame 2 transmits traction force or braking force to the longitudinal pull rods 4.5, the two groups of longitudinal pull rods 4.5 bear the same load in the same direction, the load is transmitted to the switching bracket 4.3 to form force in the same direction and torque in the opposite direction, the torque is counteracted by the transverse railing 4.6, and the force in the same direction is transmitted to the vehicle body 13 through the traction mounting seat 4.1. The transmission of the traction force and the braking force of the vehicle is realized.

The switching supports 4.3 are connected by tie rods 4.4, the two groups of switching supports 4.3 rotate around traction pins 4.2 in the same direction, one ends of longitudinal pull rods 4.5 on two sides move forwards, the other ends move backwards, and the bogie frame 2 and the vehicle body 13 rotate relatively to realize vehicle turning.

The anti-roll torsion bar 10 is connected with the bogie frame 2 through a mounting pressure plate 10.1, and a mounting seat 10.5 is connected with a vehicle body 13. When the vehicle rolls, the transverse torsion bar 10.2 rotates in torsion and generates elastic reaction force, and the damping spring 6 and the anti-rolling torsion bar 10 act together to prevent the vehicle from overlarge roll angle under the action of centrifugal force or other side loads.

The straight-line freedom degree in the vertical direction between the bogie frame 2 and the vehicle body 13 is limited by the damper spring 6, the straight-line freedom degree in the left-right direction is limited by the side stopper 9, the straight-line freedom degree in the front-back direction is limited by the traction device 4, and the functions of damping and buffering are achieved in the vertical direction. The horizontal rotation freedom degree between the bogie frame 2 and the vehicle body 13 is not limited, the left and right rolling rotation freedom degree is limited by the anti-rolling torsion bar 10, and the front and rear nodding rotation freedom degree is limited by the damping spring 6 and the connecting device 5. The functions of traction, steering, shock absorption, buffering and the like between the bogie and the vehicle body are realized.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. A traction suspension device of a straddle type monorail vehicle is characterized by comprising a traction device (4), a connecting device (5), a damping spring (6), a vertical damper (7), a transverse damper (8), a side blocking device (9), an anti-rolling torsion bar (10) and a spring upper plate (11); four groups of damping springs (6) are arranged at four corners of a bogie frame (2), bases (6.1) of the damping springs (6) are connected with a spring mounting surface of the bogie frame (2), the upper parts of the damping springs (6) are in contact connection with an upper spring plate (11), four groups of vertical dampers (7) are arranged on the inner sides of the damping springs (6), one ends of the vertical dampers (7) are connected with a mounting seat of the bogie frame (2), the other ends of the vertical dampers (7) are connected with a corresponding mounting seat of the upper spring plate (11), two groups of transverse dampers (8) are horizontally arranged between the front and rear vertical dampers (7), one ends of the transverse dampers (8) are connected with the mounting seat of the bogie frame (2), the other ends of the transverse dampers (8) are connected with the corresponding mounting seat of the upper spring plate (11), and the upper spring plate (11) is connected with a vehicle body (12); two sets of traction mounting seats (4.1) of the traction device (4) are connected with a mounting plate on the traction supporting leg (3), the traction supporting leg (3) is connected with a vehicle body (12), a switching support (4.3) is connected with the mounting seat (4.1) through a traction pin shaft (4.2), one ends of two sets of longitudinal pull rods (4.5) are connected with the mounting seat on the bogie framework (2), one ends of the two sets of longitudinal pull rods are connected with the switching support (4.3), the two sets of switching supports (4.3) are connected through a transverse pull rod (4.4), longitudinal traction, braking and mutual dislocation of a curve between the vehicle body and the bogie framework are realized.

2. The traction suspension device for a straddle-type monorail vehicle as claimed in claim 1, wherein: the damping spring (6), the vertical damper (7) and the transverse damper (8) jointly realize vertical bearing, vertical and transverse damping and buffering between the truck body (12) and the bogie frame (2).

3. The traction suspension device for a straddle-type monorail vehicle as claimed in claim 1, wherein: the damping spring can be an air spring.

4. The traction suspension device for a straddle-type monorail vehicle as claimed in claim 1, wherein: the connecting device (5) is arranged on the front side and the rear side of the bogie frame (2), two groups of mounting holes which are perpendicular to each other are formed in the upper portion and the lower portion of the lifting lug, the lower mounting holes of the lifting lug are connected with the mounting seat through a first pin shaft, the upper mounting holes of the lifting lug are connected with the lifting rod through a second pin shaft, the lifting rod penetrates through the upper support and then is provided with a rubber sleeve, a base plate and a nut, and the upper support is connected with the lower base.

5. The traction suspension device for a straddle-type monorail vehicle as claimed in claim 1, wherein: an upper spring seat (6.5) of the damping spring (6) is inserted into a sleeve of the base (6.1), an outer spring (6.2), an inner spring (6.3) and a rubber sleeve (6.4) are installed between the upper spring seat (6.5) and the base (6.1), and a friction plate (6.7) is arranged at the top of the damping spring (6) and connected with the upper spring seat (6.5) through a screw (6.6).

6. The traction suspension device for a straddle-type monorail vehicle as claimed in claim 1, wherein: the side keeps off the device and installs in bogie frame central point puts the left and right sides, side fender support (9.1) and spring upper plate (11) welded connection, spring upper plate (11) are connected with automobile body (12), mount pad (9.4) and bogie frame (2) welded connection, side fender device dog (9.2) are installed on mount pad (9.4), be provided with between dog (9.2) installation and mount pad (9.4) and adjust pad (9.3) for adjust the distance between dog (9.2) and side fender support (9.1), realize the horizontal spacing between automobile body and the bogie frame.

7. The traction suspension device for a straddle-type monorail vehicle as claimed in claim 1, wherein: the anti-rolling torsion bar is characterized in that a longitudinal torsion bar (10.3) of the anti-rolling torsion bar is connected with two ends of a transverse torsion bar (10.2) through splines, the other end of the longitudinal torsion bar (10.3) is provided with a rubber joint bearing and is connected with the lower end of a vertical pull rod (10.4) through a pin shaft, the upper end of the vertical pull rod (10.4) is provided with the joint bearing and is connected with a mounting seat (10.5) through a pin shaft, the mounting seat (10.5) is fixedly connected with a vehicle body, and the transverse torsion bar (10.2) is connected with a bogie frame (2) through a mounting pressing plate (10.1.