CN210971259U

CN210971259U - Trolley bus axle bridge component and trolley bus

Info

Publication number: CN210971259U
Application number: CN201921728290.6U
Authority: CN
Inventors: 赵文雪; 周耀斌; 张西洋; 王超; 郭常鹏
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-07-10
Anticipated expiration: 2029-10-15

Abstract

The embodiment of the application provides a trolley bus shaft bridge is constituteed and trolley bus, wherein, the shaft bridge is constituteed and is included: a shaft bridge; the steering shaft is rotatably connected to two ends of the shaft bridge through a pin shaft and can rotate for a preset angle relative to the shaft bridge in a plane perpendicular to the axis of the pin shaft; the wheel is connected with the steering shaft through a bearing; the wheel is rotatable relative to the steering shaft; the wheels are also rotatable in synchronism with the steering shaft relative to the axle. The trolley bus axle bridge assembly and the trolley bus provided by the embodiment of the application have flexible turning performance and are convenient to smoothly pass through a curve.

Description

Trolley bus axle bridge component and trolley bus

Technical Field

The application relates to a trolley bus running technology, in particular to a trolley bus axle bridge composition and a trolley bus.

Background

With the annual increase of the automobile keeping quantity of each big city, the phenomenon of traffic jam is more and more serious, so that the people can take public transport means to travel to become a preferred travel mode advocated by people. A public transportation vehicle includes: the system comprises a subway, a light rail, a bus, a trolley bus and the like, wherein the trolley bus is already put into application in many cities due to the advantages of environmental protection, no emission, large passenger capacity, easy infrastructure construction, low construction cost and the like.

The trolley bus mainly includes: the running system is used for realizing running and steering functions. The walking system is usually arranged below the carriage, and the height of the floor of the carriage is raised due to the fact that the height of the traditional walking system is high, so that the gravity center of the carriage is high, and the stability is poor. In addition, the trolley bus comprises at least two carriages, and the trolley bus has more curves and smaller turning radius in the running process of urban roads, so that the traction and buffer structures among the carriages determine the performance of the trolley bus in the turning process, and the conventional trolley bus has the problems of poor stability, large vibration and the like in the turning process.

Disclosure of Invention

In order to solve one of the above technical defects, the embodiment of the present application provides a trolley bus axle bridge assembly and a trolley bus.

The embodiment of the first aspect of the application provides a trolley bus axle bridge is constituteed, includes:

a shaft bridge;

the steering shaft is rotatably connected to two ends of the shaft bridge through a pin shaft and can rotate for a preset angle relative to the shaft bridge in a plane perpendicular to the axis of the pin shaft;

the wheel is connected with the steering shaft through a bearing; the wheel is rotatable relative to the steering shaft; the wheels are also rotatable in synchronism with the steering shaft relative to the axle.

An embodiment of a second aspect of the present application provides a trolley bus, including: the vehicle body and the axle bridge are arranged; the vehicle body is connected with an axle bridge in the axle bridge assembly.

The technical scheme that this application embodiment provided, through adopting the steering spindle to pass through the both ends of round pin hub connection to axle bridge, so that the steering spindle can predetermine the angle for axle bridge at the in-plane rotation of perpendicular to round pin axle axis, adopt the wheel to pass through the bearing and link to each other with the steering spindle, so that the wheel can rotate for the steering spindle and can rotate for axle bridge together with the steering spindle and predetermine the angle, the rotation of wheel is more nimble, can reduce trolley bus's turning radius, make it pass through the curve smoothly, more be adapted to the more urban road of bend.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic structural view of a running system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an axle bridge assembly according to an embodiment of the present disclosure;

fig. 3 is a two-dimensional cross-sectional view of an end portion of an axle in an axle assembly provided in the second embodiment of the present application, the end portion being connected to a wheel via a steering shaft;

fig. 4 is a perspective cross-sectional view of an end portion of an axle in an axle assembly provided in the second embodiment of the present application, the end portion being connected to a wheel via a steering shaft;

fig. 5 is an exploded view of an end portion of an axle in an axle assembly according to a second embodiment of the present application, which is connected to a wheel through a steering shaft;

FIG. 6 is a partial schematic view of a shaft bridge assembly provided with a brake disc according to a second embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a brake disc and a braking device in a shaft bridge assembly according to a second embodiment of the present application;

fig. 8 is a partial schematic view of a shaft bridge assembly provided with a braking device according to a second embodiment of the present application;

FIG. 9 is a schematic structural diagram of an axle bridge assembly applied to a traveling system according to a third embodiment of the present application;

fig. 10 is a schematic structural diagram of a steering apparatus according to a third embodiment of the present application;

fig. 11 is a schematic structural diagram of the anti-roll device provided in the third embodiment of the present application, which is connected to a shaft bridge.

Reference numerals:

1-axle bridge; 11-shaft hole; 12-a steering shaft; 121-connecting shaft part; 1211-shaft connecting hole; 122-a shaft cap; 1221-positioning grooves; 123-a transmission shaft; 14-a pin shaft; 15-a bearing;

2-vehicle wheels; 21-a hub;

61-a brake disc; 62-a braking device;

7-anti-roll device; 71-anti-roll torsion bar; 72-anti-roll link arm; 73-anti-roll connection; 74-rubber node;

8-a steering device; 81-a steering wheel; 82-a steering shaft; 83-universal joint; 84-a steering transmission shaft; 85-a diverter; 851-output link; 86-a steering push rod; 871-steering linkage; 872-steering linkage.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Example one

The embodiment provides an axle bridge composition which can be applied to a running system of a trolley bus. The trolley bus is a road public transport means which is driven by a motor and does not depend on a fixed track to run. A trolley bus comprising: the running system provided by the embodiment is arranged below the vehicle body, is used for supporting the vehicle body and has a running function.

In the present embodiment, the direction in which the trolley bus travels is referred to as a longitudinal direction, the direction perpendicular to the travel direction is referred to as a lateral direction, and the vertical direction is referred to as a vertical direction.

Fig. 1 is a schematic structural view of a running system provided in an embodiment of the present application, and fig. 2 is a schematic structural view of an axle bridge provided in the embodiment of the present application. The axle bridge assembly provided by the embodiment can be applied to the running system shown in FIG. 1. As shown in fig. 1 and 2, the axle bridge comprises: axle 1, steering shaft 12 and wheels 2. The axle bridge 1 is connected to the body of the trolley bus to support the body and to transmit traction or braking force.

Wherein, the steering shaft 12 is connected to the two ends of the axle 1 through the pin roll rotation, and the steering shaft 12 can rotate a preset angle relative to the axle 1 in the plane perpendicular to the pin roll axis.

The wheel 2 is connected with the steering shaft 12 through a bearing, the wheel 2 can rotate relative to the steering shaft 12, and the wheel 2 can also rotate relative to the axle 1 synchronously with the steering shaft 12.

The technical scheme that this embodiment provided, through adopting the steering spindle to pass through the both ends of round pin hub rotation connection to axle bridge, so that the steering spindle can be for axle bridge in the plane rotation of perpendicular to round pin axle axis predetermine the angle, adopt the wheel to pass through the bearing and link to each other with the steering spindle, so that the wheel can rotate for the steering spindle and can rotate for axle bridge together with the steering spindle and predetermine the angle, the rotation of wheel is more nimble, can reduce trolley bus's turning radius, make it pass through the curve smoothly, more be adapted to the urban road that the bend is more.

Example two

The present embodiment is based on the above embodiments, and further optimizes the axle composition.

Fig. 3 is a two-dimensional cross-sectional view of an end portion of an axle in an axle assembly provided in the second embodiment of the present application, the end portion of the axle being connected to a wheel via a steering shaft, fig. 4 is a three-dimensional cross-sectional view of the axle in the axle assembly provided in the second embodiment of the present application, the end portion of the axle being connected to the wheel via a steering shaft, and fig. 5 is an exploded view of the axle in the axle assembly provided in the second embodiment of the present application, the end portion of the axle being connected to the wheel via a.

As shown in fig. 2 to 5, one end of the steering shaft 12 is connected to the end of the axle 1 via a pin 14 so that the steering shaft 12 can be rotated at a certain angle with respect to the axle 1 in a plane perpendicular to the center line of the pin 14. The other end of the steering shaft 12 is inserted into a hub 21 of a wheel and connected to the hub 21 via a bearing so that the hub 21 can rotate relative to the steering shaft 12.

Specifically, the end of the axle bridge 1 is provided with an axle hole 11 for the pin 14 to pass through. One end of the steering shaft 12 is provided with two upper and lower connecting shaft portions 121, and a space for accommodating the end portion of the axle 1 is provided between the two connecting shaft portions 121. Each of the coupling portions 121 is provided with a coupling hole 1211 through which the pin 14 passes. The pin 14 may sequentially pass through the upper coupling hole 1211, the shaft hole 11, and the lower coupling hole 1211.

A stopper may be used to limit the disengagement between the pin 14 and the coupling portion 121. For example, the shaft coupling cap 122 is fitted into the shaft coupling hole 1211 from the outside, and the shaft coupling cap 122 is fixedly coupled to the shaft coupling portion 121 by a bolt, thereby assembling the axle 1, the pin 14, and the steering shaft 12.

Further, the inner surface of the coupling cover 122 is provided with a positioning groove 1221, and the end of the pin 14 can be received in the positioning groove 1221 for positioning.

The other end of the steering shaft 12 is provided with a transmission shaft 123, the transmission shaft 123 is matched with the inner ring of the bearing 15, and the outer ring of the bearing 15 is matched with the wheel hub 21, so that the wheel hub 21 can rotate relative to the transmission shaft 123. The bearing 15 is a rolling bearing.

On the basis of the technical scheme, the walking system further comprises: a brake disc connected to the hub 21 of the wheel 2 and rotating in synchronism with the wheel 2, and a braking device. A braking device is provided on the steering shaft 12 for clamping the brake disc to restrain the wheel 2 from rotating in a braking state.

Fig. 6 is a partial schematic view of a shaft bridge composition provided in the second embodiment of the present application, fig. 7 is a structural schematic view of a shaft bridge composition provided in the second embodiment of the present application, in which a brake disc is fitted with a brake device, and fig. 8 is a partial schematic view of a shaft bridge composition provided in the second embodiment of the present application, in which a brake device is provided. As shown in fig. 6 to 8, the brake disk 61 is connected to the outside of the hub 21 and rotates in synchronization with the hub 21. The brake device 62 is mounted on the steering shaft 12, and the clamp structures in the brake device 62 extend to both sides of the brake disc 61, and in a braking state, the clamp structures press against both sides of the brake disc 61 to restrain the brake disc 61 from rotating, and further restrain the hub 21 from rotating to perform braking. The brake 62 may be actuated by a hydraulic or pneumatic system.

The above-described structure of the hub 21, the brake disc 61 and the brake device 62 can be realized with reference to the related structure in the existing automobile. In the present embodiment, the structures of the hub 21, the brake disk 61, and the brake device 62 are adapted so as to be fitted to the end of the axle 1.

EXAMPLE III

A steering rod may be used to connect between the two steering shafts 12 so that the two wheels 2 connected at both ends of the axle 1 can be rotated in synchronization with respect to the axle 1.

Fig. 9 is a schematic structural view of an axle bridge assembly applied to a running system according to a third embodiment of the present application, and fig. 10 is a schematic structural view of a steering apparatus according to the third embodiment of the present application. As shown in fig. 9 and 10, the steering shaft 12 may also be connected to the steering device 8 to control the steering of the wheels 2 by the steering device.

Specifically, the steering device 8 includes: a steering wheel 81, a steering shaft rod 82, a universal joint 83, a steering transmission shaft 84, a steering gear 85, a steering push rod 86 and a steering connecting assembly which are connected in sequence. Wherein, the steering wheel 81 and the steering shaft lever 82 are arranged in the cab of the trolley bus, and the universal joint 83, the steering transmission shaft 84, the steering gear 85, the steering push rod 86 and the steering connecting component are arranged below the vehicle body. The steering connecting components are respectively connected with the steering shafts 12 on two sides.

The steering wheel 81 rotates to drive the steering shaft rod 82 to rotate, the universal joint 83 drives the steering transmission shaft 84 and the steering gear 85 to act, the steering gear 85 drives the steering push rod 86 to act through the output connecting rod 851, and the steering connecting component is driven to move leftwards or rightwards.

The number of the steering connecting assemblies is two, the steering connecting assemblies are connected to two transverse sides of the steering push rod 86, and the steering connecting assemblies are respectively connected with the steering shafts 12 on two sides and used for driving the steering shafts 12 on the same side to rotate. The steering connecting assembly specifically comprises a steering connecting rod 871 and a steering connecting piece 872, wherein the steering connecting rod 871 is connected between the steering push rod 86 and the steering connecting piece 872, and the steering connecting piece 872 is connected with the steering shaft 12. The steering push rod 86 drives the steering shaft 12 to rotate relative to the axle 1 through the steering link 871 and the steering connecting piece 872, and further drives the wheels 2 to rotate relative to the axle 1, so as to realize steering.

The concrete implementation mode of the steering device can be realized by referring to the structure in the automobile, and the structure can be adaptively adjusted to meet the requirement of the trolley bus.

Example four

On the basis of the above technical solution, as shown in fig. 2, the axle bridge 1 is further provided with a structure for installing a traction suspension device, and the traction suspension device may adopt a structure commonly used in the art, and this embodiment is not described in detail nor is it limited to a specific manner. The axle bridge 1 is in a shape that two ends are higher and the middle is lower, and the middle position of the axle bridge is provided with a mounting structure for mounting a traction suspension device. The axle 1 adopts a shape that two ends are high and the middle is low, and a space capable of accommodating the traction suspension device is formed in the middle of the axle, so that the overall height of the traction suspension device can be reduced, the height and the gravity center of a vehicle body can be further reduced, and the driving stability is improved.

In addition, as shown in fig. 1 or 9, the running system provided in this embodiment further includes: and the anti-rolling device 7 is used for limiting the height of the wheels at two sides and avoiding the side turning caused by the overlarge height of the wheel at one side. The anti-rolling device 7 extends along the transverse direction, the middle part of the anti-rolling device is fixed on the axle bridge 1, and the two ends of the anti-rolling device are connected with the vehicle body.

Fig. 11 is a schematic structural diagram of the anti-roll device provided in the third embodiment of the present application, which is connected to a shaft bridge. As shown in fig. 1, 9 and 11, the anti-roll device 7 specifically includes: anti-roll torsion bar 71 and anti-roll link arm 72.

Wherein the anti-roll torsion bar 71 extends in the transverse direction and is connected to the axle 1 by means of an anti-roll connection 73. The anti-roll torsion bar 71 is in the shape of a cylindrical long rod, the anti-roll connecting piece 73 comprises two pipe clamps with semi-arc surfaces, the two pipe clamps are connected through bolts to clamp the anti-roll torsion bar 71, and then the two pipe clamps are fixed to the axle bridge 1 through the bolts.

The anti-roll torsion bar 71 has a straight rod shape in the middle and two ends bent in a direction away from the axle 1. Both ends of the anti-roll torsion bar 71 are provided with a connection hole, respectively. The anti-roll connecting arms 72 are two in number and are connected to the end portions of the anti-roll torsion bar 71, respectively. The top end of the anti-roll link arm 72 is attached to the vehicle body.

The anti-roll connecting arm 72 specifically includes: linking arm main part and rubber node, the linking arm main part extends along vertical direction, and its bottom is equipped with fork joint portion. The rubber node is installed in a connecting hole at the end of the anti-roll torsion bar 71, and two ends of the rubber node are connected with the fork joint part. The middle part of the rubber node is formed by vulcanizing metal and rubber, and bolt holes are formed in the two ends of the rubber node through metal.

The top of the anti-roll link arm 72 is attached to the vehicle body. Specifically, the top end of the anti-roll link arm 72 is provided with a connecting hole through which a connecting member can be connected to the vehicle body. The connecting piece can be a bolt, can also be connected with the vehicle body by adopting a rubber node, or can also be connected by adopting other connecting pieces.

The rubber node is adopted to connect the anti-rolling torsion bar 71 and the anti-rolling connecting arm 72, so that acting force between the two can be buffered, and the vibration quantity transmitted to the vehicle body can be weakened.

EXAMPLE five

The embodiment provides a trolley bus, which comprises a trolley body and an axle bridge assembly provided by any one of the above contents. The axle bridge assembly is applied to a walking system and is positioned below a vehicle body.

The trolley bus that this embodiment provided, adopt above-mentioned axle bridge to constitute, through adopting the steering spindle to pass through the both ends of round pin hub connection to axle bridge, so that the steering spindle can predetermine the angle for axle bridge at the in-plane rotation of perpendicular to round pin axle axis, adopt the wheel to pass through the bearing and link to each other with the steering spindle, so that the wheel can rotate for the steering spindle and can together predetermine the angle for axle bridge rotation with the steering spindle, the rotation of wheel is more nimble, can reduce trolley bus's turning radius, make it pass through the curve smoothly, more be adapted to the more urban road in bend.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. The utility model provides a trolley bus axle bridge is constituteed which characterized in that includes:

a shaft bridge;

2. The axle bridge assembly of claim 1, further comprising:

a brake disc connected to a hub of the wheel to rotate in synchronization with the wheel;

a brake device provided on the steering shaft; the brake device is used for clamping the brake disc under a braking state so as to restrain the wheel from rotating.

3. The axle bridge assembly of claim 1, wherein the end of the axle bridge is provided with an axle hole, the central line of which extends in the vertical direction and through which the pin axle passes;

one end of the steering shaft is provided with two connecting shaft parts, and a space capable of accommodating the end part of the axle is formed between the two connecting shaft parts; and the connecting shaft part is provided with a connecting shaft hole for the shaft hole to pass through.

4. The axle assembly of claim 3, wherein the axle shaft has an axle shaft cover on the outer side for covering the axle shaft hole, and the axle shaft cover has a positioning groove on the inner surface for receiving the end of the pin shaft.

5. An axle construction according to claim 3 or 4, characterised in that the other end of the steering shaft is provided with a drive shaft for cooperation with an inner ring of a bearing.

6. Axle bridge composition according to claim 1, characterized in that the axle bridge is in the shape of a high end and a low middle.

7. The axle bridge assembly of claim 1 or 6, further comprising: the axle bridge is provided with a mounting structure for mounting a traction suspension device, and the mounting structure is positioned in the middle of the axle bridge.

8. The axle bridge assembly of claim 1, further comprising: an anti-roll device extending in a lateral direction; the middle part of the anti-rolling device is fixed on the axle bridge, and two ends of the anti-rolling device are used for being connected with the trolley bus body.

9. Axle assembly according to claim 8, wherein the anti-roll device comprises:

an anti-roll torsion bar extending in a transverse direction; the anti-side rolling torsion bar is connected with the axle bridge;

the anti-rolling connecting arm extends along the vertical direction; the number of the anti-side-rolling connecting arms is two, the anti-side-rolling connecting arms are respectively connected to the end portions of the anti-side-rolling torsion bars, and the top ends of the anti-side-rolling connecting arms are connected with the vehicle body.

10. A trolley bus, comprising: a vehicle body and an axle bridge according to any one of claims 1-9; the vehicle body is connected with an axle bridge in the axle bridge assembly.