CN220809418U - Radial guiding mechanism and independent wheel set bogie device of low-floor train - Google Patents

Abstract

The utility model discloses a radial guiding mechanism and a bogie device of an independent wheel set of a low-floor train, which relate to the technical field of railway rolling stock and comprise a moving assembly, a steering mechanism and a steering mechanism, wherein the moving assembly comprises a shaft bridge, short shafts arranged on two sides of the shaft bridge, and independent wheels at the tail ends of the short shafts, and the independent wheels are movably connected with the short shafts; the guide assembly comprises a transmission part arranged on the short shaft and a connection part connected with the transmission part, and the connection part comprises a vehicle body guide pull rod; and the installation assembly comprises a bogie frame, the bogie frame comprises two side beams horizontally arranged, end beams arranged at two ends of the two side beams and a cross beam arranged in the middle of the two side beams, and two independent wheels outside the side beams form an independent wheel pair, so that the problems that when a train passes through a curve, the radial posture of a motor car body and a trailer body is not enough in adjustment when the steering deflection angle occurs, the independent wheel pair is insufficient in guiding capability, so that the attack angle is overlarge when the curve passes, the rim abrasion is serious, and the derailment hidden danger is increased are solved.

Description

Radial guiding mechanism and independent wheel set bogie device of low-floor train

Technical Field

The utility model belongs to the technical field of railway rolling stock, and particularly relates to a radial guiding mechanism and a low-floor train independent wheel pair bogie device.

Background

The independent wheel pair bogie of the low-floor train is an important technical component of modern railway traffic, is mainly used for improving the travelling comfort and safety of the train, and aims at the wheel pair radial guiding technology of the independent wheel pair bogie of the low-floor train to solve the problem of linear pair neutral curve guiding capability of the independent wheel pair in the high-speed travelling process, so that the stability and travelling safety of the train are enhanced; starting from the 80 s of the last century, 100% low-floor trains are rapidly developed in urban rail transit due to the fact that no high platform is needed, boarding and alighting are convenient, manufacturing cost is economical and the like; in order to reduce the height of the floor surface of the vehicle to the ground to a certain extent, both the low floor vehicle motor car and the trailer bogie employ independent wheel structures which eliminate wheel axles and decouple the left and right wheels so as to allow the vehicle body to pass through, and the position and diameter of the independent wheels do not affect the arrangement of the low floor.

The independent wheel set bogie vehicle can run at a higher speed, but in theory, longitudinal creep force and creep moment do not exist, so that when a train passes through a curve, the radial posture of a motor car body and a trailer body is not enough to adjust when a steering deflection angle occurs, the independent wheel set steering capability is insufficient, the attack angle is overlarge when the train passes through the curve, the rim is seriously worn, and the problem that the derailment hidden danger is increased is solved, and in order to overcome the defect, a special bogie is often required to be designed or special guiding measures are adopted.

The bogie is complex and compact in structure, design difficulty is increased by considering the guiding problem, and the produced independent wheel pair bogie is required to be not changed greatly as much as possible. Therefore, the structural characteristics of the independent wheel set bogie are combined, a simple and easy-to-realize radial guide mechanism and a low-floor train independent wheel set bogie device are designed, the design difficulty of the bogie is reduced, and complex changes of the bogie which is put into operation are avoided.

Disclosure of utility model

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The utility model is provided in view of the problems that when the train passes through a curve, the radial posture of the motor train body and the trailer body is not enough to adjust when the steering deflection angle occurs, the guiding capability of the independent wheel pair is insufficient, so that the attack angle is overlarge when the train passes through the curve, the rim is seriously worn, and the derailment hidden trouble is increased.

In order to solve the technical problems, the utility model provides the following technical scheme: a radial guiding mechanism, characterized in that: the device comprises a moving assembly, a first rotating assembly, a second rotating assembly and a third rotating assembly, wherein the moving assembly comprises a shaft bridge, short shafts arranged on two sides of the shaft bridge, and independent wheels at the tail ends of the short shafts, and the independent wheels are movably connected with the short shafts; and the guide assembly comprises a transmission part arranged on the short shaft and a connecting part connected with the transmission part, and the connecting part comprises a vehicle body guide pull rod.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: the transmission part comprises a short shaft gland support, a wheel pair radial pull rod, a radial rotating arm and a framework hinged support, one end of the short shaft gland support is fixedly connected with the short shaft, the other end of the short shaft gland support is movably connected with one end of the wheel pair radial pull rod, the other end of the wheel pair radial pull rod is movably connected with the middle end of the radial rotating arm, the upper end of the radial rotating arm is movably connected with the framework hinged support, and the lower end of the radial rotating arm is movably connected with a vehicle body guiding pull rod of the connecting part.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: the short shaft gland support comprises a first fixing block and a second fixing block, wherein the first fixing block is fixedly connected to one end of the second fixing block, the first fixing block is arc-shaped, a plurality of fixing holes are formed in the first fixing block, the first fixing block is fixedly connected with the short shaft through bolts, and two first connecting blocks are symmetrically arranged on one end face, far away from the first fixing block, of the second fixing block.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: the wheel set radial pull rod comprises a first parallel section, a gradient section and a second parallel section, wherein the first parallel section is parallel to the second parallel section, the gradient section is provided with a gradient, and two ends of the gradient section are fixedly connected with the first parallel section and the second parallel section respectively.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: the one end that the slope section was kept away from to first parallel section is provided with first spherical hinge, and the one end that the slope section was kept away from to the second parallel section is provided with two first hinge blocks, be provided with first hinge hole on the first hinge block, first spherical hinge and first linkage block fixed connection.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: the radial rocking arm is L shape, and radial rocking arm one end is provided with the second hinge hole, and the other end is provided with two second connecting blocks, is provided with the third hinge hole parallel with the second hinge hole in the middle, the third hinge hole is connected through the round pin axle hinge with first hinge hole.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: the framework hinge support is provided with a fourth hinge hole, and the fourth hinge hole is hinged with the second hinge hole through a pin shaft.

As a preferred embodiment of the radial guiding mechanism according to the present utility model, wherein: one end of the car body guiding pull rod is provided with a transverse second spherical hinge, the other end of the car body guiding pull rod is provided with a longitudinal third spherical hinge, and the second spherical hinge is fixedly connected with the second connecting block.

The beneficial effects of the utility model are as follows: according to the utility model, the short shaft gland support provided with the transmission part is connected with the moving assembly, one end of the radial pull rod of the wheel pair is connected with the short shaft gland support, the other end of the radial pull rod of the wheel pair is movably connected with the middle end of the radial rotating arm, the second hinge hole arranged at the upper end of the radial rotating arm is movably connected with the framework hinge support, the lower end of the radial rotating arm is connected with one end of the vehicle body guiding pull rod of the connecting part, the other end of the vehicle body guiding pull rod is connected with the vehicle body of the motor vehicle, and the relative rotation angle of the front and rear motor vehicle bodies of the trailer is utilized, so that the radial posture adjusting capability and the automatic guiding capability of the radial guiding mechanism in the running process of a curve section are realized, the wheel rail friction is reduced, the derailment risk of the vehicle is reduced, and the modularized design of the radial guiding mechanism is realized.

In view of the fact that the existing low-floor train independent wheel set bogie device has relatively high gravity center, has insufficient running stability, and is easy to generate instability such as tipping and sloshing.

In order to solve the technical problems, another object of the present utility model is to provide a bogie device for independent wheel sets of a low-floor train, which comprises the radial guiding mechanism and an installation assembly, and comprises a bogie frame, wherein the bogie frame comprises two side beams horizontally arranged, end beams arranged at two ends of the two side beams, and a cross beam arranged in the middle of the two side beams, and two independent wheels outside the side beams form an independent wheel set.

As a preferable scheme of the low-floor train independent wheel set bogie device, the utility model comprises the following steps: the axle bridge is transversely arranged on the inner side of the steering frame, and the frame hinged support is welded on the inner side of the side beam of the steering frame and is a fixed rotating point of the guiding device.

The utility model has another beneficial effect: through setting up lower bogie, through the independent wheel pair in the curb girder outside that sets up, the framework articulated support of welding in the inboard of bogie curb girder has realized that the independent wheel pair bogie device focus of low-floor train is lower relatively through setting up the radial guiding mechanism in the bogie inside, and driving stability is high, is difficult for taking place the unstability effect such as tipping over, sloshing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic structural view of a radial guide mechanism of the present utility model.

Fig. 2 is a schematic structural view of the short shaft gland support of the present utility model.

Fig. 3 is a schematic structural view of the radial tie rod of the wheel set of the present utility model.

Fig. 4 is a schematic view of the structure of the frame hinge support of the present utility model.

Fig. 5 is a schematic view of the structure of the radial arm of the present utility model.

Fig. 6 is a schematic structural view of the vehicle body guide rail of the present utility model.

Fig. 7 is a schematic structural view of the independent wheel set bogie apparatus of the low-floor train of the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

Example 1

Referring to fig. 1, for a first embodiment of the present utility model, a radial guiding mechanism is provided, which includes a moving assembly 100, including a shaft bridge 101, a short shaft 102 disposed at two sides, and independent wheels 103 at the ends of the short shaft 102, wherein the two sides of the shaft bridge 101 are connected with the short shaft 102, and the side of the short shaft 102 far from the shaft bridge 101 is movably connected with the independent wheels 103; and the guide assembly 200 comprises a transmission part 201 arranged on the short shaft 102 and a connection part 202 connected with the transmission part 201, wherein the connection part 202 comprises a vehicle body guide pull rod 202a, the transmission part 201 is arranged on the short shaft 102, and the vehicle body guide pull rod 202a is movably connected with the transmission part 201.

During the use process: through the automobile body direction pull rod 202a that sets up, one end and drive portion 201 swing joint, the other end and bullet train automobile body swing joint, utilize the relative corner of bullet train automobile body around the trailer, make automobile body direction pull rod 202a drive portion 201 motion, drive the terminal independent wheel 103 radial motion of the minor axis 102 of movable assembly 100, when having realized that the automobile body train crosses the curve, bullet train automobile body appears turning to the off angle with the trailer automobile body, automobile body direction pull rod 202a drives radial guiding mechanism motion, adjust the radial gesture of independent wheel 103, improve the automatic guiding ability of low-floor train when the curve highway section operation.

Example 2

Referring to fig. 1-6, a second embodiment of the present utility model is shown, which differs from the first embodiment in that: the transmission part 201 comprises a short shaft gland support 201a, a wheel set radial pull rod 201b, a radial rotating arm 201c and a framework hinged support 201d, wherein the short shaft gland support 201a is a pull rod support which is added on a short shaft gland component of a bogie axle device, one end of the short shaft gland support 201a is fixedly connected with the short shaft 102, the other end of the short shaft gland support 201a is movably connected with one end of the wheel set radial pull rod 201b, the other end of the wheel set radial pull rod 201b is movably connected with the middle end of the radial rotating arm 201c, the upper end of the radial rotating arm 201c is movably connected with the framework hinged support 201d, and the lower end of the radial rotating arm 201c is movably connected with a vehicle body guide pull rod 202a of the connecting part 202; the wheel set radial pull rod 201b comprises a first parallel section 201b-1, a gradient section 201b-3 and a second parallel section 201b-4, wherein the first parallel section 201b-1 is parallel to the second parallel section 201b-4, the gradient section 201b-3 has a gradient, and two ends of the gradient section are fixedly connected with the first parallel section 201b-1 and the second parallel section 201b-4 respectively; the end of the first parallel section 201b-1 far away from the gradient section 201b-3 is provided with a first spherical hinge 201b-2, the end of the second parallel section 201b-4 far away from the gradient section 201b-3 is provided with two first hinge blocks 201b-5, the first hinge blocks 201b-5 are provided with first hinge holes 201b-6, the first spherical hinge 201b-2 is fixedly connected with the first connecting blocks 201a-4, the first spherical hinge 201b-2 is a rubber elastic spherical hinge, the movement of the wheel pair radial pull rod 201b can drive the movement of the short shaft gland support 201a, and the movement of the short shaft gland support 201a drives the radial movement of the independent wheel 103 at the tail end of the short shaft 102 fixedly connected with the short shaft gland support 201 a.

The further radial rotating arm 201c is L-shaped, one end of the radial rotating arm 201c is provided with a second hinging hole 201c-1, the other end of the radial rotating arm 201c is provided with two second connecting blocks 201c-3, the middle of the radial rotating arm is provided with a third hinging hole 201c-2 parallel to the second hinging hole 201c-1, a part of the third hinging hole 201c-2 of the radial rotating arm 201c is arranged between two first hinging blocks 201b-5 at one end of the wheel set radial pull rod 201b, and the third hinging hole 201c-2 of the radial rotating arm 201c is hinged with the first hinging holes 201b-6 of the first hinging blocks 201b-5 through pin shafts; the front end of the framework hinge support 201d is provided with a fourth hinge hole 201d-1, and the fourth hinge hole 201d-1 of the framework hinge support 201d is hinged with the second hinge hole 201c-1 of the radial rotating arm 201c through a pin shaft; one end of a vehicle body guiding pull rod 202a of the connecting part 202 is provided with a transverse second spherical hinge 202a-1, the other end is provided with a longitudinal third spherical hinge 202a-2, the second spherical hinge 202a-1 of the vehicle body guiding pull rod 202a is fixedly connected with a second connecting block 201c-3 of the radial rotating arm 201c through bolts, the second spherical hinge 202a-1 and the third spherical hinge 202a-2 are rubber elastic spherical hinges, and one end of the vehicle body guiding pull rod 202a far away from the radial rotating arm 201c is connected with a vehicle body of the motor vehicle.

During the use process: the short shaft gland support 201a of the transmission part 201 is connected with the short shafts 102 on two sides of the axle 101, the tail ends of the short shafts 102 are movably connected with the independent wheels 103, one end of the set wheel set radial pull rod 201b is connected with the short shaft gland support 201a, the other end of the wheel set radial pull rod 201b is movably connected with the middle end of the radial rotating arm 201c, the second hinge hole 201c-1 arranged at the upper end of the radial rotating arm 201c is movably connected with the framework hinge support 201d, the lower end of the radial rotating arm 201c is connected with one end of the vehicle body guide pull rod 202a of the connection part 202, the other end of the vehicle body guide pull rod 202a is connected with the vehicle body of the motor vehicle, when the vehicle body moves by utilizing the relative rotation angle of the front and rear of the vehicle body of the trailer, the vehicle body guide pull rod 202a drives the connection part 202 to move, the vehicle body guide pull rod 202a drives the transmission part 201 to move, the independent wheels 103 at the tail ends of the transmission part 100 move radially, the radial guide mechanism is realized, and the radial attitude adjustment capability and automatic guide capability of the wheel rail during the operation of the radial guide mechanism on a curve road section are reduced, the modularized design of the short shaft guide mechanism is reduced.

The rest of the structure is the same as that of embodiment 1.

Example 3

Referring to fig. 1 to 7, for the third embodiment of the present utility model, there is provided a bogie apparatus for independent wheel sets of a low floor train, comprising the radial guiding mechanism described above, and a mounting assembly 300, comprising a bogie 301, the bogie 301 comprising two side beams 301a horizontally arranged, end beams 301b arranged at both ends of the two side beams 301a, and a cross beam 301c arranged between the two side beams 301a, the two independent wheels 103 outside the side beams 301a forming an independent wheel set, the axle 101 being transversely arranged inside the bogie 301, and a frame hinge support 201d welded inside the side beams 301a of the bogie 301, being a fixed rotation point of the guiding means.

During the use process: by arranging the lower bogie 301, the independent wheel 103 pairs outside the side beams 301a are arranged, the frame hinged support 201d welded on the inner side of the side beams 301a of the bogie 301, and the radial guide mechanism arranged inside the bogie 301, the effects of relatively low gravity center, high running stability and difficult occurrence of instability such as tipping, sloshing and the like of the bogie of the independent wheel pairs of the low-floor train are realized.

The rest of the structure is the same as that of embodiment 2.

It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.

Claims (10)

1. A radial guiding mechanism, characterized in that: comprising the steps of (a) a step of,

The moving assembly (100) comprises an axle (101), short axles (102) arranged on two sides of the axle (101) and independent wheels (103) at the tail ends of the short axles (102), wherein the independent wheels (103) are movably connected with the short axles (102); and

The guide assembly (200) comprises a transmission part (201) arranged on the short shaft (102) and a connecting part (202) connected with the transmission part (201), wherein the connecting part (202) comprises a vehicle body guide pull rod (202 a).

2. The radial guide mechanism of claim 1, wherein: the transmission part (201) comprises a short shaft gland support (201 a), a wheel pair radial pull rod (201 b), a radial rotating arm (201 c) and a framework hinged support (201 d), one end of the short shaft gland support (201 a) is fixedly connected with a short shaft (102), the other end of the short shaft gland support (201 a) is movably connected with one end of the wheel pair radial pull rod (201 b), the other end of the wheel pair radial pull rod (201 b) is movably connected with the middle end of the radial rotating arm (201 c), the upper end of the radial rotating arm (201 c) is movably connected with the framework hinged support (201 d), and the lower end of the radial rotating arm (201 c) is movably connected with a vehicle body guiding pull rod (202 a) of the connecting part (202).

3. The radial guide mechanism of claim 2, wherein: the short shaft gland support (201 a) comprises a first fixing block (201 a-1) and a second fixing block (201 a-3), wherein the first fixing block (201 a-1) is fixedly connected to one end of the second fixing block (201 a-3), the first fixing block (201 a-1) is arc-shaped, a plurality of fixing holes (201 a-2) are formed in the first fixing block (201 a-1), the first fixing block (201 a-1) is fixedly connected with a short shaft (102) through bolts, and two first connecting blocks (201 a-4) are symmetrically arranged on one end face, far away from the first fixing block (201 a-1), of the second fixing block (201 a-3).

4. A radial guiding mechanism according to claim 2 or 3, characterized in that: the wheel set radial pull rod (201 b) comprises a first parallel section (201 b-1), a gradient section (201 b-3) and a second parallel section (201 b-4), wherein the first parallel section (201 b-1) is parallel to the second parallel section (201 b-4), the gradient section (201 b-3) is provided with a gradient, and two ends of the gradient section are fixedly connected with the first parallel section (201 b-1) and the second parallel section (201 b-4) respectively.

5. The radial guide mechanism of claim 4, wherein: one end of the first parallel section (201 b-1) far away from the gradient section (201 b-3) is provided with a first spherical hinge (201 b-2), one end of the second parallel section (201 b-4) far away from the gradient section (201 b-3) is provided with two first hinge blocks (201 b-5), the first hinge blocks (201 b-5) are provided with first hinge holes (201 b-6), and the first spherical hinge (201 b-2) is fixedly connected with the first connecting blocks (201 a-4).

6. The radial guide mechanism of claim 5, wherein: the radial rotating arm (201 c) is L-shaped, one end of the radial rotating arm (201 c) is provided with a second hinge hole (201 c-1), the other end of the radial rotating arm is provided with two second connecting blocks (201 c-3), a third hinge hole (201 c-2) parallel to the second hinge hole (201 c-1) is arranged in the middle of the radial rotating arm, and the third hinge hole (201 c-2) is hinged with the first hinge hole (201 b-6) through a pin shaft.

7. The radial guide mechanism of claim 6, wherein: the framework hinge support (201 d) is provided with a fourth hinge hole (201 d-1), and the fourth hinge hole (201 d-1) is hinged with the second hinge hole (201 c-1) through a pin shaft.

8. The radial guide mechanism of claim 1 or 7, wherein: one end of the vehicle body guiding pull rod (202 a) is provided with a transverse second spherical hinge (202 a-1), the other end of the vehicle body guiding pull rod is provided with a longitudinal third spherical hinge (202 a-2), and the second spherical hinge (202 a-1) is fixedly connected with a second connecting block (201 c-3).

9. A low floor train independent wheel set bogie arrangement comprising a radial guide mechanism as claimed in any one of claims 1 to 8, and

The mounting assembly (300) comprises a bogie frame (301), wherein the bogie frame (301) comprises two side beams (301 a) which are horizontally arranged, end beams (301 b) which are arranged at two ends of the two side beams (301 a), and a cross beam (301 c) which is arranged between the two side beams (301 a), and two independent wheels (103) outside the side beams (301 a) form an independent wheel pair.

10. The low floor train independent wheel set truck assembly of claim 9 wherein: the axle (101) is transversely arranged on the inner side of the bogie frame (301), and the frame hinge support (201 d) is welded on the inner side of a side beam (301 a) of the bogie frame (301) and serves as a fixed rotation point of the guide device.