CN113581238B

CN113581238B - Vibration damping structure of vehicle, bogie and vehicle

Info

Publication number: CN113581238B
Application number: CN202110865806.7A
Authority: CN
Inventors: 刘振明; 丁洪亮; 段仕会; 徐世锋; 穆凤军; 侯兴华; 徐强
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-12-20
Anticipated expiration: 2041-07-29
Also published as: CN113581238A

Abstract

The invention provides a vibration damping structure of a vehicle, a bogie and the vehicle, wherein the vibration damping structure of the vehicle comprises: the front side and the rear side of the end part of the swing bolster are both provided with a tapered wedge groove structure, and the tapered wedge groove structure comprises a tapered groove wall and a first side groove wall and a second side groove wall which are positioned at the left side and the right side of the tapered groove wall; a plurality of slide wedge structures, every slide wedge inslot structure is provided with a slide wedge structure, and the slide wedge structure includes first voussoir and the second voussoir that sets up along the left and right direction and sets up the first elastic component between first voussoir and second voussoir, and first elastic component compression is so that first voussoir and first side cell wall butt, second voussoir and second side cell wall butt. By applying the technical scheme of the invention, the problem of unstable operation of the bogie in the related technology can be effectively solved.

Description

Vibration damping structure of vehicle, bogie and vehicle

Technical Field

The invention relates to the field of railway transportation, in particular to a vibration damping structure of a vehicle, a bogie and the vehicle.

Background

The conventional three-piece bogie for the cast steel of the railway wagon has the advantages of simple structure, low cost, good load balancing property and the like, and is widely applied all over the world. An important parameter in measuring truck performance is the diamond stiffness of the truck. If the diamond resistance of the bogie is small, poor running stability of the vehicle may result.

The diamond-resistant rigidity of the bogie is a parameter for measuring the righting maintaining capability of the bogie, and for the conventional three-piece bogie, two longitudinal side frames and one transverse swing bolster are in an H shape in a righting state after normal assembly; including the wheel pair 110, is in a shape of a "sun" (as shown in fig. 1), and does not include a bolster in a peripheral outline, and is similarly rectangular. When pushing one side frame, the three piece truck changes from a "rectangular" to a "parallelogram," commonly referred to as a "diamond". As shown in fig. 2, if the diamond-resistant rigidity of the bogie is small, the wheel pair 110 is easy to deflect relative to the rail 120, which affects the running stability of the vehicle. Since we do not want the bogie to become "diamond", we want to increase the ability of the bogie to hold "rectangular", or to resist "diamond" deformation; this capability is strong, and the bogie can be stable during operation, and the critical speed of the vehicle can be high.

In the prior art, the shock absorber is arranged between the swing bolster and the side frame to improve the diamond-resistant rigidity of the bogie, on one hand, the shock absorber can play a role in absorbing shock between the swing bolster and the side frame, on the other hand, the shock absorber can fill an assembly gap between the swing bolster and the side frame, the smaller the movement amount of the swing bolster in the side frame, the larger the diamond-resistant rigidity of the bogie is, the more stable the bogie is in operation, and the higher the critical speed of a vehicle can be. The shock absorber is generally installed in a center frame of a side frame and comprises shock absorbing springs and wedges which are arranged in an array mode, the wedges are spaced in the front-back direction of a swing bolster, inclined grooves matched with the wedges are formed in the swing bolster, when the swing bolster penetrates into the center frame of the side frame, the swing bolster presses the shock absorbing springs and the wedges downwards, the wedges have the tendency that the center frame moves after the wedges are subjected to pressure of an inclined surface of the swing bolster, the center frame of the side frame is abutted, and gaps between the swing bolster and the side frame in the width direction of the swing bolster are effectively filled. However, at present, in the left and right directions of the swing bolster, an assembly gap still exists between the wedge and the swing bolster chute, and the existence of the assembly gap reduces the diamond-resistant rigidity of the bogie and influences the stability of the bogie in operation.

Disclosure of Invention

The invention mainly aims to provide a vibration damping structure of a vehicle, a bogie and the vehicle, so as to solve the problem of unstable operation of the bogie in the related art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a vibration damping structure of a vehicle, comprising: the front side and the rear side of the end part of the swing bolster are both provided with a tapered wedge groove structure, and the tapered wedge groove structure comprises a tapered groove wall and a first side groove wall and a second side groove wall which are positioned at the left side and the right side of the tapered groove wall; a plurality of slide wedge structures, every slide wedge inslot structure is provided with a slide wedge structure, and the slide wedge structure includes first voussoir and the second voussoir that sets up along the left and right direction and sets up the first elastic component between first voussoir and second voussoir, and first elastic component compression is so that first voussoir and first side cell wall butt, second voussoir and second side cell wall butt.

Further, the slide wedge structure includes the slide wall that is on a parallel with the chute wall, the first side wall that corresponds to first side cell wall and the second side wall that corresponds to the second side cell wall, and first side cell wall and second side cell wall all incline to set up and the interval between first side cell wall and the second side cell wall reduces gradually from top to bottom, slide wedge structure and slide wedge groove structure looks adaptation.

Furthermore, the included angle between the first side groove wall and the vertical direction is 10-40 degrees; the included angle between the second side groove wall and the vertical direction is 10-40 degrees.

The first wedge block is provided with a first inclined wall, the second wedge block is provided with a second inclined wall, the first inclined wall and the second inclined wall form an inclined wall of a wedge structure, the first wedge block further comprises a first vertical wall arranged at an angle with the first inclined wall, a first side wall corresponding to the first side groove wall, a third side wall far away from the first side groove wall and a first bottom wall arranged between the first inclined wall and the first vertical wall, the first inclined wall, the first vertical wall, the first side wall, the third side wall and the first bottom wall enclose a first cavity, and a first mounting opening communicated with the first cavity is formed in the third side wall; the second wedge block also comprises a second vertical wall arranged at an angle with the second inclined wall, a second side wall close to the wall of the second side groove, a fourth side wall far away from the wall of the second side groove and a second bottom wall arranged between the second inclined wall and the second vertical wall, the second inclined wall, the second vertical wall, the second side wall, the fourth side wall and the second bottom wall enclose a second cavity, and a second mounting opening communicated with the first cavity is formed in the fourth side wall; the first end of the first elastic piece extends into the first mounting opening and is abutted against the first side wall, and the second end of the first elastic piece extends into the second mounting opening and is abutted against the second side wall.

Further, the wedge structure further comprises: the sleeve, first elastic component wear to locate in the sleeve, and telescopic first end stretches into in the first cavity, and telescopic second end stretches into in the second cavity, and telescopic length is less than the length of first elastic component.

Further, the difference between the length of the first elastic member and the length of the sleeve is between 20mm and 60 mm.

Further, the angle between the chute wall and the horizontal plane is between 35 ° and 65 °.

Furthermore, a first through hole opposite to the first mounting hole is formed in the first side wall of the first wedge block, a second through hole opposite to the second mounting hole is formed in the second side wall of the second wedge block, a third through hole opposite to the first through hole is formed in the first side groove wall of the wedge groove structure, a fourth through hole opposite to the second through hole is formed in the second side groove wall of the wedge groove structure, the first elastic piece is a first spring, and the first mounting hole, the second mounting hole, the first through hole, the fourth through hole and the center line of the first spring coincide.

According to another aspect of the present invention, there is provided a bogie comprising: the side frame comprises a side frame body and a central frame penetrating through the side frame body, and an accommodating space is formed in the central frame; the second elastic pieces are arranged in the central frame and are arranged in an array; the damping structure sets up in a plurality of second elastic component tops, and the damping structure is with center frame butt under the effect of the elastic restoring force of a plurality of second elastic components, and the damping structure is foretell damping structure.

According to another aspect of the present invention, there is provided a bogie comprising: the side frame comprises a side frame body and a central frame penetrating through the side frame body, and an accommodating space is formed in the central frame; the second elastic pieces are arranged in the central frame and are arranged in an array; damping structure sets up in a plurality of second elastic component tops, and damping structure is foretell damping structure, and the center frame includes the stand that sets up along the width direction interval of truck bloster, and the first wall that stands of the first voussoir of damping structure and the second of the second voussoir of damping structure stand wall and stand butt, and first wall, second stand are provided with the antifriction subassembly between wall and the stand.

According to another aspect of the present invention, there is provided a vehicle including: a vehicle body; and the bogie is arranged below the vehicle body.

By applying the technical scheme of the invention, the swing bolster is internally provided with the inclined wedge structure, and the difference between the inclined wedge structure and the traditional inclined wedge structure is as follows: the utility model provides a slide wedge structure includes two, first voussoir and second voussoir promptly, is provided with first elastic component between first voussoir and the second voussoir, and the slide wedge structure is installed in the slide wedge groove structure of truck bloster, and first elastic component is in the compression state for first voussoir and second voussoir butt under the effect of the elastic restoring force of first elastic component in the slide wedge groove structure, promptly: the first wedge block is connected with the first side groove wall in an abutting mode, and the second wedge block is connected with the second side groove wall in an abutting mode. By the aid of the structure, assembly gaps between the wedge structures and the wedge groove structures of the swing bolster are eliminated, the diamond-resistant rigidity of the bogie is improved, and the stability of the bogie in operation is further improved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram illustrating a bogie of the prior art placed on a track;

FIG. 2 is a schematic diagram showing the configuration of the truck of FIG. 1 undergoing diamond-shaped deformation;

fig. 3 shows a split structure diagram of an embodiment of the vibration damping structure of the present invention;

FIG. 4 is a schematic view of a split structure of one angle of the wedge structure of the vibration reduction structure of FIG. 3;

FIG. 5 is a schematic view of another angular split configuration of the wedge structure of the vibration reduction structure of FIG. 3;

FIG. 6 shows a perspective view of a first wedge of the wedge structure of FIG. 4;

FIG. 7 shows a perspective view of a second wedge of the wedge construction of FIG. 4;

FIG. 8 illustrates an angular perspective view of the bolster of the shock absorbing structure of FIG. 3;

FIG. 9 illustrates a schematic perspective view of another angle of the bolster of the shock absorbing structure of FIG. 3; and

fig. 10 shows a schematic view of a split structure of an embodiment of the bogie of the present invention.

Wherein the figures include the following reference numerals:

10. a swing bolster; 20. a tapered wedge slot structure; 21. a chute wall; 22. a first side groove wall; 221. a third through hole; 23. a second sidewall wall; 231. a fourth via hole; 30. a tapered wedge structure; 40. a first wedge; 41. a first sloped wall; 42. a first vertical wall; 43. a first side wall; 431. a first through hole; 44. a third side wall; 45. a first bottom wall; 46. a first mounting port; 50. a second wedge; 51. a second sloped wall; 52. a second vertical wall; 53. a second side wall; 531. a second through hole; 54. a fourth side wall; 55. a second bottom wall; 56. a second mounting port; 60. a first elastic member; 70. a sleeve; 80. a side frame; 81. a center frame; 811. a column; 82. a side frame body; 90. a second elastic member; 100. a vibration reduction structure; 110. a wheel set; 120. a track.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 3 to 10, the vibration damping structure of the vehicle of the present embodiment includes: a bolster 10 and a plurality of cam structures 30. Wherein, the front side and the rear side of the end part of the swing bolster 10 are both provided with a tapered wedge groove structure 20, and the tapered wedge groove structure 20 comprises a tapered groove wall 21 and a first side groove wall 22 and a second side groove wall 23 which are positioned at the left side and the right side of the tapered groove wall 21; one wedge structure 30 is disposed in each of the plurality of wedge structures 30 and in each of the wedge groove structures 20, the wedge structure 30 includes a first wedge 40 and a second wedge 50 disposed in a left-right direction, and a first elastic member 60 disposed between the first wedge 40 and the second wedge 50, the first elastic member 60 is compressed to make the first wedge 40 abut against the first side groove wall 22, and the second wedge 50 abuts against the second side groove wall 23.

Use the technical scheme of this embodiment, be provided with slide wedge structure 30 in the truck bloster 10, the difference of the slide wedge structure 30 of this application and traditional slide wedge structure lies in: the wedge structure 30 of the present application includes two, first voussoir 40 and second voussoir 50 promptly, is provided with first elastic component 60 between first voussoir 40 and the second voussoir, and wedge structure 30 is installed in the wedge groove structure 20 of truck bloster 10, and first elastic component 60 is in compression state for first voussoir 40 and second voussoir 50 butt under the effect of the elastic restoring force of first elastic component 60 is in wedge groove structure 20, promptly: the first wedge 40 abuts the first side pocket wall 22, and the second wedge 50 abuts the second side pocket wall 23. The structure eliminates the assembly gap between the wedge structure 30 and the wedge groove structure 20 of the swing bolster 10, improves the diamond-resistant rigidity of the vibration damping structure, and further improves the stability of the bogie in operation.

It should be noted that in the present application, the included angle between the chute wall 21 and the horizontal plane is between 35 ° and 65 °. Preferably, the included angle between the chute wall 21 and the horizontal is 52.5 °.

In the present embodiment, as shown in fig. 3 to 9, the wedge structure 30 includes a sloped wall parallel to the chute wall 21, a first side wall 43 corresponding to the first side chute wall 22, and a second side wall 53 corresponding to the second side chute wall 23, the first side chute wall 22 and the second side chute wall 23 are both disposed obliquely, and the distance between the first side chute wall 22 and the second side chute wall 23 is gradually reduced from top to bottom, and the wedge structure 30 is adapted to the wedge chute structure 20. In the structure, because the first side slot wall 22 and the second side slot wall 23 are both obliquely arranged and the distance between the first side slot wall 22 and the second side slot wall 23 is gradually reduced from top to bottom, when the swing bolster 10 downwardly extrudes the wedge structure 30, the first side slot wall 22 and the second side slot wall 23 of the wedge slot structure 20 can upwards push the wedge structure 30, the oblique wall of the wedge structure 30 upwards moves to be tightly propped against the oblique slot wall of the wedge slot structure 20, and due to the oblique structures of the oblique slot wall and the oblique wall, the wedge structure 30 can be pushed towards the front side or the rear side of the swing bolster, so that the wedge structure 30 extrudes a center frame of a side frame, the gap between the swing bolster and the side frame in the width direction of the swing bolster is effectively filled, and the diamond-resistant rigidity of the vibration reduction structure is further improved.

As shown in fig. 4 to 9, the included angle between the first side groove wall 22 and the vertical direction is between 10 ° and 40 °; the angle between the second side groove wall 23 and the vertical direction is between 10 degrees and 40 degrees. In the above structure, too large or too small included angle between the first side groove wall 22 and the vertical direction will affect the ejection effect of the first side groove wall 22 on the wedge structure 30, so that the included angle between the first side groove wall 22 and the vertical direction is set between 10 ° and 40 °, and the first side groove wall 22 can have a better ejection effect on the first wedge block 40. Correspondingly, the included angle between the second side groove wall 23 and the vertical direction is 10-40 degrees, and the same effect can be achieved.

As shown in fig. 3 to 9, in the present embodiment, the first wedge 40 has a first inclined wall 41, the second wedge 50 has a second inclined wall 51, the first inclined wall 41 and the second inclined wall 51 form an inclined wall of the wedge structure 30, the first wedge 40 further includes a first standing wall 42 disposed at an angle with the first inclined wall 41, a first side wall 43 corresponding to the first side groove wall 22, a third side wall 44 away from the first side groove wall 22, and a first bottom wall 45 disposed between the first inclined wall 41 and the first standing wall 42, the first inclined wall 41, the first standing wall 42, the first side wall 43, the third side wall 44, and the first bottom wall 45 enclose a first cavity, and the third side wall 44 is provided with a first mounting opening 46 communicating with the first cavity; the second wedge block 50 further comprises a second vertical wall 52 arranged at an angle with the second inclined wall 51, a second side wall 53 close to the second side groove wall 23, a fourth side wall 54 far away from the second side groove wall 23, and a second bottom wall 55 arranged between the second inclined wall 51 and the second vertical wall 52, the second inclined wall 51, the second vertical wall 52, the second side wall 53, the fourth side wall 54 and the second bottom wall 55 define a second cavity, and a second mounting opening 56 communicated with the first cavity is formed in the fourth side wall 54; a first end of the first elastic member 60 extends into the first mounting opening 46 and abuts against the first side wall 43, and a second end of the first elastic member 60 extends into the second mounting opening 56 and abuts against the second side wall 53. In the above configuration, the first wedge 40 is a first cavity surrounded by the first sloped wall 41, the first standing wall 42, the first side wall 43, the third side wall 44, and the first bottom wall 45, and the weight of the first wedge 40 can be reduced, so that the self weight of the vibration damping structure can be reduced, and the self weight of the entire vehicle can be reduced. Accordingly, the second inclined wall 51, the second standing wall 52, the second side wall 53, the fourth side wall 54, and the second bottom wall 55 define a second cavity, and the above structure can reduce the weight of the second wedge. In addition, because the width restriction of the bolster 10, the length of the cam slot structure 20 cannot be too large, and the above structure enables the first cavity and the second cavity to accommodate the first elastic member 60, thereby reducing the volume of the whole cam structure 30 and facilitating the miniaturization design of the cam structure 30.

As shown in fig. 3 to 7, in the present embodiment, the wedge structure 30 further includes a sleeve 70, the first elastic member 60 is disposed in the sleeve 70, a first end of the sleeve 70 extends into the first cavity, a second end of the sleeve 70 extends into the second cavity, and a length of the sleeve 70 is smaller than a length of the first elastic member 60. In the above structure, when the wedge structure 30 is installed in the wedge groove structure 20 of the bolster, the sleeve 70 can be located in the first and second cavities, so that the first and

second wedges

40 and 50 can move in the axial direction of the sleeve 70, increasing the stability of the first and

second wedges

40 and 50 during movement of the vehicle. In addition, the length of the sleeve 70 needs to be less than that of the first elastic member 60 so that the first elastic member 60 can be compressed, thereby allowing both pre-compression and installation of the wedge structure 30 in the wedge slot structure 20, and thus eliminating an installation gap between the wedge structure 30 and the wedge slot structure 20.

As shown in fig. 4 and 5, in the present embodiment, the difference between the length of the first elastic member 60 and the length of the sleeve 70 is between 20mm and 60 mm. In the above structure, when the cam structure 30 is installed in the cam slot structure 20 of the bolster, the compression amount of the first elastic member 60 is between 20mm and 60mm, and the above structure can make the first elastic member 60 have a sufficient elastic restoring force, so that the cam structure 30 can tightly push the cam slot structure 20, and the diamond-resistant rigidity of the vibration damping structure is improved. In this embodiment, the compression amount of the first elastic member 60 is 22mm.

Note that, in the present embodiment, the rigidity of the first elastic member 60 is 300N/mm. The above-mentioned rigidity means that a force of 300N is required to be applied to the first elastic member 60 every time the first elastic member 60 is compressed downward by 1 mm.

As shown in fig. 3 to 9, in the present embodiment, the first side wall 43 of the first wedge 40 is provided with a first through hole 431 opposite to the first mounting hole 46, the second side wall 53 of the second wedge 50 is provided with a second through hole 531 opposite to the second mounting hole 56, the first side groove wall 22 of the wedge groove structure 20 is provided with a third through hole 221 opposite to the first through hole 431, the second side groove wall 23 of the wedge groove structure 20 is provided with a fourth through hole 231 opposite to the second through hole 531, the first elastic member 60 is a first spring, and the center lines of the first mounting hole 46, the second mounting hole 56, the first through hole 431 to the fourth through hole 231 and the first spring are overlapped. In the above-described structure, when the wedge structure 30 is installed in the wedge groove structure 20, the first wedge 40 and the second wedge 50 need to be pressed by a clamp, and then the first wedge 40 and the second wedge 50 are inserted into the wedge groove structure 20, and at this time, if the clamp is released, the first wedge 40 and the second wedge 50 are collapsed from the wedge groove structure 20 by the first elastic member 60, so that the first wedge 40 and the second wedge 50 need to be fastened in the wedge groove structure 20 by inserting iron rods into the third through hole 221, the first through hole 431, the first installation hole 46, the first spring, the second installation hole 56, the fourth through hole 231, and the fourth through hole 231 in sequence, and then the entire damping structure is sent into the center frame of the side frame, thereby completing installation of the damping structure. The structure can improve the assembly efficiency of the vibration reduction structure and the side frame.

As shown in fig. 10, the present application also provides a truck, an embodiment of which includes a side frame 80, a plurality of second elastic members 90, and a damping structure 100. The side frame 80 comprises a side frame body 82 and a central frame 81 arranged on the side frame body 82 in a penetrating mode, and an accommodating space is formed in the central frame 81; the plurality of second elastic members 90 are disposed in the central frame 81, and the plurality of second elastic members 90 are disposed in an array; the vibration damping structure 100 is provided above the plurality of second elastic members 90, the vibration damping structure 100 abuts against the center frame 81 by the elastic restoring force of the plurality of second elastic members 90, and the vibration damping structure 100 is the above-described vibration damping structure 100. In the above structure, since the vibration damping structure 100 has an advantage of high diamond resistance, the bogie having the same also has the above advantage.

As shown in fig. 10, the present application also provides a truck, an embodiment of which includes a side frame 80, a plurality of second elastic members 90, and a damping structure 100. The side frame 80 comprises a side frame body 82 and a central frame 81 arranged on the side frame body 82 in a penetrating mode, and an accommodating space is formed in the central frame 81; the plurality of second elastic members 90 are disposed in the central frame 81, and the plurality of second elastic members 90 are disposed in an array; vibration damping structure 100 is provided above second elastic members 90, vibration damping structure 100 is vibration damping structure 100 described above, center frame 81 includes columns 811 provided at intervals in the width direction of bolster 10, first upright wall 42 of first wedge 40 of vibration damping structure 100 and second upright wall 52 of second wedge 50 of vibration damping structure 100 abut against columns 811, and a wear reduction unit is provided between first upright wall 42, second upright wall 52, and columns 811. In the above configuration, when the vehicle is loaded, the plurality of second elastic members 90 are first mounted in the accommodating spaces of the plurality of second elastic members 90, and the vibration damping structure 100 is further mounted above the plurality of second elastic members 90. When the vibration damping structure 100 penetrates into the center frame 81 of the side frame 80, the bolster 10 moves downward toward the second elastic member 90 and the wedge structure 30, and the wedge structure 30 has a tendency to move toward the upright 811 of the center frame 81 after being pressed by the wedge groove structure 20 of the bolster 10, so that the center frame 81 is abutted, the gap between the bolster 10 and the side frame 80 in the left-right direction is effectively filled, and the diamond-resistant rigidity of the bogie is improved.

The wear reducing members are wear plates provided on first vertical wall 42, second vertical wall 52, and vertical column 811, respectively.

The present application further provides a vehicle, comprising: the bogie is the bogie. In the structure, the bogie has the advantage of high diamond-resistant rigidity, so that the vehicle can stably run and the maximum running speed of the vehicle can be increased, and the vehicle with the bogie also has the advantages.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration damping structure of a vehicle, characterized by comprising:

the swing bolster comprises a swing bolster (10), wherein inclined wedge groove structures (20) are arranged on the front side and the rear side of the end part of the swing bolster (10), and each inclined wedge groove structure (20) comprises an inclined groove wall (21), and a first side groove wall (22) and a second side groove wall (23) which are positioned on the left side and the right side of the inclined groove wall (21);

a plurality of wedge structures (30), one wedge structure (30) being disposed in each wedge pocket structure (20), the wedge structures (30) including first and second wedges (40, 50) disposed in a left-right direction, and a first resilient member (60) disposed between the first and second wedges (40, 50), the first resilient member (60) being compressed to cause the first wedge (40) to abut the first side pocket wall (22), and the second wedge (50) to abut the second side pocket wall (23);

the first wedge (40) having a first inclined wall (41), the second wedge (50) having a second inclined wall (51), the first inclined wall (41) and the second inclined wall (51) forming inclined walls of the wedge structure (30),

the first wedge block (40) further comprises a first vertical wall (42) arranged at an angle with the first inclined wall (41), a first side wall (43) corresponding to the first side groove wall (22), a third side wall (44) far away from the first side groove wall (22), and a first bottom wall (45) arranged between the first inclined wall (41) and the first vertical wall (42), the first inclined wall (41), the first vertical wall (42), the first side wall (43), the third side wall (44) and the first bottom wall (45) enclose a first cavity, and a first mounting opening (46) communicated with the first cavity is formed in the third side wall (44);

the second wedge block (50) further comprises a second vertical wall (52) arranged at an angle with the second inclined wall (51), a second side wall (53) close to the second side groove wall (23), a fourth side wall (54) far away from the second side groove wall (23) and a second bottom wall (55) arranged between the second inclined wall (51) and the second vertical wall (52), the second inclined wall (51), the second vertical wall (52), the second side wall (53), the fourth side wall (54) and the second bottom wall (55) enclose a second cavity, and a second mounting opening (56) communicated with the first cavity is formed in the fourth side wall (54);

wherein a first end of the first elastic member (60) extends into the first mounting opening (46) and abuts against the first side wall (43), and a second end of the first elastic member (60) extends into the second mounting opening (56) and abuts against the second side wall (53).

2. The vibration damping structure of a vehicle according to claim 1, characterized in that the wedge structure (30) comprises a sloping wall parallel to the sloping slot wall (21), a first side wall (43) corresponding to the first side slot wall (22) and a second side wall (53) corresponding to the second side slot wall (23), the first side slot wall (22) and the second side slot wall (23) are both obliquely arranged and the distance between the first side slot wall (22) and the second side slot wall (23) is gradually reduced from top to bottom, the wedge structure (30) being adapted to the wedge slot structure (20).

3. The vibration damping structure of a vehicle according to claim 2,

the included angle between the first side groove wall (22) and the vertical direction is 10-40 degrees;

the included angle between the second side groove wall (23) and the vertical direction is 10-40 degrees.

4. The vibration damping structure of a vehicle according to claim 1, wherein said wedge structure (30) further comprises:

the sleeve (70), first elastic component (60) wear to locate in sleeve (70), the first end of sleeve (70) stretches into in the first cavity, the second end of sleeve (70) stretches into in the second cavity, the length of sleeve (70) is less than the length of first elastic component (60).

5. The vibration damping structure of a vehicle according to claim 4, characterized in that a difference between a length of the first elastic member (60) and a length of the sleeve (70) is between 20mm and 60 mm.

6. Vibration damping arrangement according to claim 2, characterized in that the angle between the chute wall (21) and the horizontal is between 35 ° and 65 °.

7. The vibration damping structure of a vehicle according to claim 4, wherein a first through hole (431) is provided in a first side wall (43) of the first wedge (40) opposite to the first mounting opening (46), a second through hole (531) is provided in a second side wall (53) of the second wedge (50) opposite to the second mounting opening (56), a third through hole (221) is provided in a first side groove wall (22) of the chute structure (20) opposite to the first through hole (431), a fourth through hole (231) is provided in a second side groove wall (23) of the chute structure (20) opposite to the second through hole (531), the first elastic member (60) is a first spring, and the first mounting opening (46), the second mounting opening (56), the first through hole (431) to the fourth through hole (231), and a center line of the first spring coincide.

8. A bogie, comprising:

the side frame (80) comprises a side frame body (82) and a central frame (81) arranged on the side frame body (82) in a penetrating mode, and an accommodating space is formed in the central frame (81);

a plurality of second elastic members (90) disposed in the center frame (81), the plurality of second elastic members (90) being arranged in an array;

a vibration damping structure (100) disposed above the plurality of second elastic members (90), the vibration damping structure (100) abutting against the center frame (81) under an elastic restoring force of the plurality of second elastic members (90), wherein the vibration damping structure (100) is the vibration damping structure (100) according to any one of claims 1 to 7.

9. The truck of claim 8,

center frame (81) include along stand (811) of the width direction interval setting of swing bolster (10), damping structure (100) first founding wall (42) of first voussoir (40) with damping structure (100) second founding wall (52) of second voussoir (50) with stand (811) butt, first founding wall (42), second founding wall (52) and be provided with the antifriction subassembly between stand (811).

10. A vehicle, comprising:

a vehicle body;

a bogie provided below the vehicle body, characterized in that the bogie is the bogie according to claim 8 or 9.