CN212353995U

CN212353995U - Radial bogie

Info

Publication number: CN212353995U
Application number: CN202021264483.3U
Authority: CN
Inventors: 于子良; 张锋珍; 任坤华; 齐洪峰
Original assignee: CRRC Industry Institute Co Ltd
Current assignee: CRRC Industry Institute Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-01-15
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a bogie technical field especially relates to a radial bogie. The radial bogie comprises a wheel set device and a wheel set adjusting device, wherein the wheel set device comprises two wheel sets, a first axle box is respectively installed at the first end of each wheel set, and a second axle box is respectively installed at the second end of each wheel set; the wheel pair adjusting device comprises two adjusting beams, wherein two ends of one adjusting beam are respectively and correspondingly connected with the two first axle boxes, and two ends of the other adjusting beam are respectively and correspondingly connected with the two second axle boxes; the adjusting beam is at least partially arched. The utility model provides a radial bogie can conveniently adjust the interval between two wheel pairs, and then the radial bogie of being convenient for passes through little curve track smoothly.

Description

Radial bogie

Technical Field

The utility model relates to a bogie technical field especially relates to a radial bogie.

Background

The bogie is used as an important component of rail transit equipment, plays important roles of bearing, guiding, traction, shape walking, braking and the like, and is the most critical component for determining the running safety and the dynamic performance of a locomotive vehicle. Because the conventional bogie has a fixed wheelbase, the defect that the bogie is not beneficial to passing through a small curve track is overcome, so that the abrasion of the bogie passing through the small curve track is large, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing a radial bogie can solve the bogie and be unfavorable for through the orbital problem of little curve.

(II) technical scheme

In order to solve the technical problem, the utility model provides a radial bogie, including wheel set device and wheel set adjusting device, the wheel set device includes two wheel sets, and the first end of each wheel set is installed the first axle box respectively, and the second end of each wheel set is installed the second axle box respectively; the wheel pair adjusting device comprises two adjusting beams, wherein two ends of one adjusting beam are respectively and correspondingly connected with the two first axle boxes, and two ends of the other adjusting beam are respectively and correspondingly connected with the two second axle boxes; the adjusting beam is at least partially arched.

The two first axle box pull rods are symmetrically arranged, the first ends of the two first axle box pull rods are respectively and movably connected with the two first axle boxes in a corresponding mode, and the second ends of the two first axle box pull rods are respectively and movably connected with the framework; the two second axle box pull rods are symmetrically arranged, the first ends of the two second axle box pull rods are respectively and correspondingly movably connected with the two second axle boxes, and the second ends of the two second axle box pull rods are respectively and movably connected with the framework.

Furthermore, the framework comprises a connecting beam assembly and two bearing beams, two ends of the connecting beam assembly are correspondingly connected with the two bearing beams respectively, two ends of one of the bearing beams are correspondingly connected with the two first axle boxes respectively, and two ends of the other bearing beam are correspondingly connected with the two second axle boxes respectively.

Furthermore, the connecting beam assembly comprises two first mounting beams arranged in parallel, two second mounting beams arranged in parallel and a third mounting beam, the two first mounting beams are arranged between the two second mounting beams, the first mounting beams are parallel to the second mounting beams, and the third mounting beam is vertically connected between the two first mounting beams; two ends of each first mounting beam are respectively and correspondingly connected with the two bearing beams, and two ends of each second mounting beam are respectively and correspondingly connected with the two bearing beams.

Furthermore, a first mounting part is arranged in the middle of each first mounting beam, and the two first mounting parts are arranged oppositely; the second ends of the two first axle box pull rods are respectively and correspondingly and rotatably connected with the two first mounting parts, and the second ends of the two second axle box pull rods are respectively and correspondingly and rotatably connected with the two first mounting parts;

the included angle between the first axle box pull rod and the second axle box pull rod which are adjacently arranged is 90 degrees.

Furthermore, the adjusting beam comprises a middle adjusting part and two connecting parts, and two ends of the middle adjusting part are respectively and correspondingly connected with the two connecting parts; the thickness of the middle adjusting part is larger than that of the connecting part.

Furthermore, each first axle box is provided with a first mounting seat, and a first rubber spring is mounted on each first mounting seat; each second shaft box is provided with a second mounting seat, and a second rubber spring is mounted on each second mounting seat; the upper top surfaces of the two first rubber springs are respectively provided with a first mounting plate, and two ends of one bearing beam are respectively and correspondingly and rotatably connected with the two first mounting plates through a first rotating piece; and the two upper top surfaces of the second rubber springs are respectively provided with a second mounting plate, and the other two ends of the bearing beam are respectively connected with the two second mounting plates in a corresponding rotating manner through a second rotating piece.

Further, each first rubber spring is obliquely arranged from the outer side to the inner side of the wheel pair downwards, and the inclination angle of the first rubber spring relative to the horizontal plane is 15-25 degrees; each second rubber spring is arranged to incline downwards from the outer side to the inner side of the wheel pair, and the inclination angle of the second rubber spring relative to the horizontal plane is 15-25 degrees.

Furthermore, each bearing beam is provided with a second mounting part, and the two second mounting parts are arranged in a back-to-back manner;

the automobile shock absorber further comprises two vertical shock absorbers, wherein the upper ends of the vertical shock absorbers are respectively rotatably connected with the automobile body, and the lower ends of the vertical shock absorbers are respectively rotatably connected with the upper surface of the second installation portion.

Furthermore, the lower surface of one end of each second mounting part, which is far away from the bearing beam, is provided with a mounting seat, a rotating shaft is connected between the two mounting seats, the rotating shaft is arranged below the framework, and two ends of the rotating shaft are correspondingly and rotatably connected with the two mounting seats through bearings; shaft sleeves are fixedly sleeved at two ends of the rotating shaft respectively, the two shaft sleeves are arranged between the two mounting seats respectively, and a connecting plate is fixedly connected to each shaft sleeve;

the vehicle body is characterized by further comprising two anti-side-rolling torsion bars, the upper ends of the two anti-side-rolling torsion bars are respectively connected with the vehicle body, and the lower ends of the two anti-side-rolling torsion bars are respectively in corresponding rotating connection with the two connecting plates.

(III) advantageous effects

The above technical scheme of the utility model has following advantage:

the utility model provides a radial bogie, first axle box is installed respectively to the first end of two wheel pairs, and the second axle box is installed respectively to the second end of two wheel pairs, through set up two regulation roof beams between two wheel pairs, it is the arch to adjust the roof beam at least part, corresponds with two first axle boxes respectively with one of them both ends of adjusting the roof beam and is connected, corresponds with two second axle boxes respectively with another both ends of adjusting the roof beam and is connected, and the little curve track is passed through smoothly to this radial bogie of being convenient for. When the radial bogie passes through a curve, the vehicle body generates an outward centrifugal force due to the linear velocity of the vehicle body, and the vehicle body can overturn outwards under the action of the centrifugal force, so that the outer side of the frame of the bogie moves downwards after being extruded, the adjusting beam on the outer side generates downward deformation after being extruded by the frame, the curvature of the arch of the adjusting beam on the outer side is increased, the distance between two ends of the adjusting beam on the outer side is increased, and the wheel distance on the outer side of the wheel pair is increased; simultaneously, the inboard pressure that receives of adjusting the roof beam of bogie diminishes, and inboard adjusting beam deformation resumes for inboard adjusting roof beam both ends distance diminishes, makes the inboard wheel interval of wheel pair diminish, then this radial bogie just can pass through the curve smoothly.

Drawings

Fig. 1 is a schematic perspective view of a radial bogie according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an adjusting beam in a radial bogie according to an embodiment of the present invention;

FIG. 3 is another schematic view of an embodiment of the present invention showing an alternative construction of an adjusting beam in a radial bogie;

FIG. 4 is another schematic view of an embodiment of the present invention showing an alternative construction of an adjusting beam in a radial bogie;

FIG. 5 is another schematic view of an embodiment of the present invention showing an alternative construction of an adjusting beam in a radial bogie;

fig. 6 is a schematic view of an installation state of an adjusting beam in a radial bogie according to an embodiment of the present invention;

figure 7 is a front view of a radial bogie of an embodiment of the present invention;

figure 8 is a top view of an embodiment of the present invention radial bogie;

fig. 9 is a bottom view of a radial bogie of an embodiment of the present invention.

In the figure:

1: a wheel set; 2: a first axle box; 3: a second shaft box; 4: adjusting the beam;

5: a frame; 51: a load beam; 511: a second mounting portion; 512: a mounting seat; 513: a rotating shaft; 514: a bearing; 515: a shaft sleeve; 516: a connecting plate; 52: a first mounting beam; 521: a first mounting portion; 53: a second mounting beam; 54: a third mounting beam;

6: a first axle box pull rod; 7: a second axle box draw bar; 8: a first rubber spring; 91: a first vertical shock absorber; 92: a second vertical shock absorber; 10: a third vertical shock absorber; 11: an anti-roll torsion bar; 12: an air spring; 13: a traction pull rod; 14: and a braking device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 9, the embodiment of the present invention provides a radial bogie, including wheel set device and wheel set adjusting device, the wheel set device includes two wheel sets 1, and first axle box 2 is installed respectively to the first end of each wheel set 1, and second axle box 3 is installed respectively to the second end of each wheel set 1.

The wheel set adjusting device comprises two adjusting beams 4, wherein two ends of one adjusting beam 4 are correspondingly connected with the two first axle boxes 2 respectively, and two ends of the other adjusting beam 4 are correspondingly connected with the two second axle boxes 3 respectively.

Wherein the adjusting beam 4 is at least partly arched. That is, as shown in fig. 2, the adjusting beam 4 may be arched as a whole. Alternatively, as shown in fig. 3 to 5, the adjusting beam 4 may have an arched portion, that is, the adjusting beam 4 may include one arched portion or may include a plurality of arched portions.

The embodiment of the utility model provides a radial bogie because two are adjusted roof beam 4 and all have the arch curve structure, consequently can produce when adjusting roof beam 4 and receive the extrusion and warp to can adjust the interval between two primary shaft case 2 and two secondary shaft case 3, and then can adjust the interval between two wheel pairs 1, be convenient for this radial bogie smoothly through little curve track, and then effectively solved the too big problem of wearing and tearing when radial bogie passes through little curve track, the maintenance cost is reduced.

When the radial bogie passes through a curve, the vehicle body generates an outward centrifugal force due to the fact that the vehicle body has a linear velocity, the vehicle body can overturn outwards under the action of the centrifugal force, the outer side of the framework 5 of the bogie moves downwards after being extruded, the adjusting beam 4 located on the outer side deforms downwards after being extruded by the framework 5, the arched curvature of the adjusting beam 4 located on the outer side is increased, the distance between two ends of the adjusting beam 4 located on the outer side is increased, and the distance between two wheels located on the outer side is increased. Simultaneously, the pressure that is located inboard regulation roof beam 4 and receives diminishes for the deformation that is located inboard regulation roof beam 4 resumes, thereby makes the both ends distance that is located inboard regulation roof beam 4 diminish, and then makes two wheel intervals that are located inboard diminish, then this radial bogie just can pass through the curve smoothly.

Particularly, each adjusting beam 4 is made of carbon fiber materials, so that the structural strength of the adjusting beam 4 can be guaranteed, each adjusting beam 4 can deform to a certain extent when stressed, and the weight of the radial bogie can be reduced.

In a further embodiment of the invention, the radial bogie further comprises a frame 5, two first axle box tie rods 6 in one-to-one correspondence with the first axle boxes 2 and two second axle box tie rods 7 in one-to-one correspondence with the second axle boxes 3. The two first axle box pull rods 6 are symmetrically arranged, the first ends of the two first axle box pull rods 6 are correspondingly and movably connected with the two first axle boxes 2 through rubber joints respectively, and the second ends of the two first axle box pull rods 6 are movably connected with the framework 5 through rubber joints respectively. The two second axle box pull rods 7 are symmetrically arranged, the first ends of the two second axle box pull rods 7 are correspondingly and rotatably connected with the two second axle boxes 3 through rubber joints respectively, and the second ends of the two second axle box pull rods 7 are movably connected with the framework 5 through rubber joints respectively. Through swing joint first axle box pull rod 6 between first axle box 2 and framework 5, swing joint second axle box pull rod 7 between second axle box 3 and framework 5, can be when the interval between two wheel pairs 1 changes for each first axle box pull rod 6 and each second axle box pull rod 7 realize the rotation of small angle, and then cooperate the interval situation of change between two wheel pairs 1, be convenient for this radial bogie smoothly through little curve track.

Specifically, each first axle box pull rod 6 and each second axle box pull rod 7 are made of carbon fiber materials, so that the structural strength of the first axle box pull rod 6 and the second axle box pull rod 7 can be guaranteed, and the overall weight of the radial bogie can be reduced.

In the present invention, the frame 5 comprises a connecting beam assembly and two bearing beams 51, two ends of the connecting beam assembly are respectively connected to the two bearing beams 51, two ends of one bearing beam 51 are respectively connected to the two first axle boxes 2, and two ends of the other bearing beam 51 are respectively connected to the two second axle boxes 3. The structural form of the framework 5 can effectively enhance the structural strength of the framework 5, and further improve the structural strength of the radial bogie.

In the embodiment of the present invention, the connection beam assembly includes two parallel first mounting beams 52, two parallel second mounting beams 53 and a third mounting beam 54, wherein the two first mounting beams 52 are disposed between the two second mounting beams 53, the first mounting beams 52 are parallel to the second mounting beams 53, and the third mounting beam 54 is vertically connected between the two first mounting beams 52. Two ends of each first mounting beam 52 are respectively connected with the two bearing beams 51 correspondingly, and two ends of each second mounting beam 53 are respectively connected with the two bearing beams 51 correspondingly. The structural form of the tie beam assembly further enhances the structural strength of the frame 5, and thus the structural strength of the radial bogie.

In the embodiment of the present invention, each first mounting beam 52 has a first mounting portion 521 in the middle, and the two first mounting portions 521 are opposite to each other. The second ends of the two first axle box pull rods 6 are respectively and correspondingly movably connected with the two first mounting parts 521, and the second ends of the two second axle box pull rods 7 are respectively and correspondingly and rotatably connected with the two first mounting parts 521. The movable connection among each first axle box pull rod 6, each second axle box pull rod 7 and each first mounting beam 52 is facilitated by arranging the first mounting portion 521 at the middle part of the first mounting beam 52.

Specifically, the included angle between the first axle box pull rod 6 and the second axle box pull rod 7 which are adjacently arranged is 90 °, that is, the first axle box pull rod 6 and the second axle box pull rod 7 which are arranged on the same side of one of the first mounting beams 52 are perpendicular to each other, and the first axle box pull rod 6 and the second axle box pull rod 7 which are arranged on the same side of the other first mounting beam 52 are perpendicular to each other. The arrangement mode between the first axle box pull rod 6 and the second axle box pull rod 7 can achieve the optimal rotation adjusting effect.

In the embodiment of the present invention, as shown in fig. 2, when the adjusting beam 4 is overall arched, the overall thickness of the adjusting beam 4 is gradually reduced from the middle to both ends.

As shown in fig. 3 to 5, when the middle portion of the adjusting beam 4 is in an arc shape, the adjusting beam 4 includes a middle adjusting portion 41 and two connecting portions 42, two ends of the middle adjusting portion 41 are respectively connected to the two connecting portions 42, wherein the middle adjusting portion 41 is in an arc shape, and the thickness of the middle adjusting portion 41 gradually decreases from the middle to the two ends.

As shown in fig. 3, the two connecting portions 42 are both of a flat plate structure horizontally disposed, and the thickness of the middle adjusting portion 41 is greater than that of the connecting portions 42.

As shown in fig. 4, both the connecting portions 42 are disposed obliquely downward from one end close to the intermediate regulating portion 41 to the other end away from the intermediate regulating portion 41, and the thickness of the intermediate regulating portion 41 is greater than that of the connecting portions 42.

As shown in fig. 5, both the connecting portions 42 are of a downwardly concave curved structure, and the thickness of the intermediate regulating portion 41 is greater than that of the connecting portions 42.

That is, the adjusting beam 4 is set to be thick in the middle and thin at two ends, when the adjusting beam 4 is deformed under stress, the middle part of the adjusting beam 4 which is deformed greatly is relatively thicker, so that the middle part of the adjusting beam 4 can be effectively prevented from being broken, and the middle part of the adjusting beam 4 is different from the thicknesses at two ends, so that the breakage damage caused by stress concentration can be effectively prevented.

In a further embodiment of the present invention, two carrier beams 51 are respectively a first carrier beam and a second carrier beam, wherein the first carrier beam is disposed above two first axle boxes 2, and the second carrier beam is disposed above two second axle boxes 3. Each first axle box 2 is provided with a first mounting seat (not shown), and the first mounting seat is provided with a first rubber spring 8. Each second axle box 3 is provided with a second mounting seat (not shown), and a second rubber spring (not shown) is mounted on the second mounting seat.

Wherein, two first rubber spring 8's last top surfaces are equipped with first mounting panel respectively, and wherein the both ends of first carrier bar correspond through first rotation piece and two first mounting panels respectively and rotate and be connected. That is, when the first journal box 2 is deflected, the first rubber spring 8 can rotate relative to the first carrier beam.

The upper top surfaces of the two second rubber springs are respectively provided with a second mounting plate, and two ends of the second bearing beam are respectively connected with the two second mounting plates in a corresponding rotating mode through a second rotating piece. That is, when the second axle box 3 is deflected, the second rubber spring can rotate relative to the second load beam.

By arranging the first rubber spring 8 between the first bearing beam and the first axle box 2 and arranging the second rubber spring between the second bearing beam and the second axle box 3, each bearing beam 51 can perform up-and-down buffer motion on the first axle box 2 and the second axle box 3, each bearing beam 51 is ensured to have enough buffer motion space, and the anti-vibration performance and the structural strength of the radial bogie are further enhanced.

In a further embodiment of the present invention, the space between the two wheel sets 1 is set as the inner side of the wheel set 1, and the space outside the two wheel sets 1 is set as the outer side of the wheel set 1. Each first rubber spring 8 is arranged to be inclined downward from the outer side to the inner side of the wheel set 1, wherein the inclination angle of the first rubber spring 8 with respect to the horizontal plane is 15 ° to 25 °. Each second rubber spring is arranged to be inclined downward from the outer side to the inner side of the wheel set 1, wherein the inclination angle of the second rubber spring relative to the horizontal plane is 15-25 degrees. By arranging the two first rubber springs 8 obliquely with respect to one another and the two second rubber springs obliquely with respect to one another, the frame 5 facilitates the adjustment of the distance between the two wheel sets 1 by means of the respective adjusting beam 4 when it is pressed against the respective adjusting beam 4.

In a further embodiment of the present invention, the radial bogie further comprises two first vertical shock absorbers 91 and two second vertical shock absorbers 92. The both ends of first carrier bar correspond with two first axle casees 2 through first vertical bumper shock absorbers 91 respectively and are connected, promptly, the upper end of two first vertical bumper shock absorbers 91 corresponds with the both ends lower surface of first carrier bar respectively and rotates and be connected, and the lower extreme of two first vertical bumper shock absorbers 91 corresponds with the outside of two first axle casees 2 respectively and rotates and be connected.

The two ends of the second carrier bar are respectively and correspondingly connected with the two second axle boxes 3 through the second vertical shock absorbers 92, that is, the upper ends of the two second vertical shock absorbers 92 are respectively and correspondingly and rotatably connected with the lower surfaces of the two ends of the second carrier bar, and the lower ends of the two second vertical shock absorbers 92 are respectively and correspondingly and rotatably connected with the outer sides of the two second axle boxes 3.

Through the first vertical shock absorber 91 and the second vertical shock absorber 92, the influence of the vibration of the bearing beam 51 on the first axle box 2 and the second axle box 3 can be effectively prevented, and the vibration resistance and the structural strength of the radial bogie are improved.

In a further embodiment of the present invention, each of the carrier beams 51 is provided with a second mounting portion 511, and the two second mounting portions 511 are back to back. The radial bogie further comprises two third vertical shock absorbers 10, the upper ends of the two third vertical shock absorbers 10 are respectively in rotating connection with the bogie body, and the lower ends of the two third vertical shock absorbers 10 are respectively in corresponding rotating connection with the upper surfaces of the two second installation parts 511. By installing the third vertical shock absorber 10 between the carrier beam 51 and the vehicle body, the vibration of the carrier beam 51 can be effectively prevented, and the vibration resistance and the structural strength of the radial bogie can be improved.

In a further embodiment of the present invention, the lower surface of the end of each second mounting portion 511, which is far away from the carrier beam 51, is provided with a mounting base 512, a rotation axis 513 is connected between the two mounting bases 512, the rotation axis 513 is disposed below the framework 5, and two ends of the rotation axis 513 are rotatably connected with the two mounting bases 512 through bearings 514. Shaft sleeves 515 are fixedly sleeved at two ends of the rotating shaft 513 respectively, the two shaft sleeves 515 are arranged between the two mounting seats 512 respectively, and a connecting plate 516 is fixedly connected to each shaft sleeve 515 respectively. That is, the shaft sleeve 515 can be driven to rotate by pulling the connecting plate 516, and then the rotating shaft 513 is driven to rotate by the shaft sleeve 515.

The radial bogie further comprises two anti-rolling torsion bars 11, the upper ends of the two anti-rolling torsion bars 11 are respectively connected with the vehicle body, and the lower ends of the two anti-rolling torsion bars 11 are respectively and correspondingly and rotatably connected with the two connecting plates 516. When the vehicle body is twisted, the vehicle body can drive the anti-roll torsion bar 11 to move up and down, the anti-roll torsion bar 11 can drive the shaft sleeve 515 and the rotating shaft 513 to rotate through the connecting plate 516, and the movement range of the anti-roll torsion bar 11 is limited due to the connection mode of the anti-roll torsion bar 11 between the vehicle body and the bearing beam 51, so that the vehicle body is prevented from rolling laterally through the anti-roll torsion bar 11.

In a further embodiment of the present invention, each load beam 51 is provided with an air spring 12, and the upper contact surface of the air spring 12 is used for connecting with the vehicle body. By arranging the air spring 12 on the load beam 51, a sufficient damping movement space is provided between the load beam 51 and the vehicle body, so that the vibration resistance and the structural strength of the radial bogie are enhanced.

In a further embodiment of the present invention, the radial bogie further comprises two traction rods 13, the two traction rods 13 are on the same straight line, and the two traction rods 13 are symmetrically arranged. One ends of the two traction pull rods 13 are respectively and correspondingly rotatably connected with the middle parts of the two first mounting beams 52, and the other ends of the two traction pull rods 13 are respectively and rotatably connected with the vehicle body.

In a further embodiment of the present invention, a braking device 14 is respectively installed on the wheel axle of each wheel pair 1 for realizing the braking operation of the wheel pair 1.

In the description of the present invention, 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A radial bogie is characterized by comprising a wheel set device and a wheel set adjusting device, wherein the wheel set device comprises two wheel sets, a first axle box is respectively installed at the first end of each wheel set, and a second axle box is respectively installed at the second end of each wheel set; the wheel pair adjusting device comprises two adjusting beams, wherein two ends of one adjusting beam are respectively and correspondingly connected with the two first axle boxes, and two ends of the other adjusting beam are respectively and correspondingly connected with the two second axle boxes; the adjusting beam is at least partially arched.

2. The radial bogie according to claim 1, further comprising a frame, two first axle box pull rods in one-to-one correspondence with the first axle boxes, and two second axle box pull rods in one-to-one correspondence with the second axle boxes, wherein the two first axle box pull rods are symmetrically arranged, first ends of the two first axle box pull rods are respectively movably connected with the two first axle boxes correspondingly, and second ends of the two first axle box pull rods are respectively movably connected with the frame; the two second axle box pull rods are symmetrically arranged, the first ends of the two second axle box pull rods are respectively and correspondingly movably connected with the two second axle boxes, and the second ends of the two second axle box pull rods are respectively and movably connected with the framework.

3. The radial bogie of claim 2, wherein the framework comprises a connecting beam assembly and two load-bearing beams, two ends of the connecting beam assembly are correspondingly connected with the two load-bearing beams respectively, two ends of one load-bearing beam are correspondingly connected with the two first axle boxes respectively, and two ends of the other load-bearing beam are correspondingly connected with the two second axle boxes respectively.

4. The radial bogie of claim 3, wherein the tie beam assembly comprises two first mounting beams disposed in parallel, two second mounting beams disposed in parallel, and a third mounting beam, the two first mounting beams disposed between the two second mounting beams, the first mounting beams being parallel to the second mounting beams, the third mounting beam being perpendicularly connected between the two first mounting beams; two ends of each first mounting beam are respectively and correspondingly connected with the two bearing beams, and two ends of each second mounting beam are respectively and correspondingly connected with the two bearing beams.

5. The radial bogie of claim 4, wherein a first mounting portion is provided in the middle of each first mounting beam, the first mounting portions being disposed opposite each other; the second ends of the two first axle box pull rods are respectively and correspondingly and rotatably connected with the two first mounting parts, and the second ends of the two second axle box pull rods are respectively and correspondingly and rotatably connected with the two first mounting parts;

6. The radial bogie of any one of claims 3 to 5, wherein each of the first axleboxes is provided with a first mounting seat, and a first rubber spring is mounted on the first mounting seat; each second shaft box is provided with a second mounting seat, and a second rubber spring is mounted on each second mounting seat; the upper top surfaces of the two first rubber springs are respectively provided with a first mounting plate, and two ends of one bearing beam are respectively and correspondingly and rotatably connected with the two first mounting plates through a first rotating piece; and the two upper top surfaces of the second rubber springs are respectively provided with a second mounting plate, and the other two ends of the bearing beam are respectively connected with the two second mounting plates in a corresponding rotating manner through a second rotating piece.

7. The radial bogie of claim 6, wherein each of the first rubber springs is disposed to be inclined downward from an outer side to an inner side of the wheel pair, and the inclination angle of the first rubber spring with respect to a horizontal plane is 15 ° to 25 °; each second rubber spring is arranged to incline downwards from the outer side to the inner side of the wheel pair, and the inclination angle of the second rubber spring relative to the horizontal plane is 15-25 degrees.

8. The radial bogie of any of claims 3 to 5, wherein each load beam has a second mounting portion disposed thereon, the second mounting portions being disposed opposite one another;

9. The radial bogie according to claim 8, wherein the lower surface of one end of each second mounting portion, which is far away from the load-bearing beam, is provided with a mounting seat, a rotating shaft is connected between the two mounting seats, the rotating shaft is arranged below the framework, and two ends of the rotating shaft are correspondingly and rotatably connected with the two mounting seats through bearings; shaft sleeves are fixedly sleeved at two ends of the rotating shaft respectively, the two shaft sleeves are arranged between the two mounting seats respectively, and a connecting plate is fixedly connected to each shaft sleeve;

10. The radial bogie according to any one of claims 1 to 5, wherein the adjusting beam comprises a middle adjusting portion and two connecting portions, two ends of the middle adjusting portion are respectively connected with the two connecting portions correspondingly, the middle adjusting portion is arched, and the thickness of the middle adjusting portion is larger than that of the connecting portions.