CN111976771A - Inclined wedge and swing bolster elastic connection vibration damping device for railway wagon bogie and bogie - Google Patents
Inclined wedge and swing bolster elastic connection vibration damping device for railway wagon bogie and bogie Download PDFInfo
- Publication number
- CN111976771A CN111976771A CN202010868518.2A CN202010868518A CN111976771A CN 111976771 A CN111976771 A CN 111976771A CN 202010868518 A CN202010868518 A CN 202010868518A CN 111976771 A CN111976771 A CN 111976771A
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- wedge
- bolster
- bogie
- side frame
- friction surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/06—Bolster supports or mountings incorporating metal springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
Abstract
The invention discloses a wedge and swing bolster elastic connection vibration damper for a railway freight car bogie and the bogie, which solve the problems that the main friction surface in the prior art has vertical vibration and transverse vibration, so that the bogie has low diamond deformation resistance and weak control capacity between a swing bolster and a side frame, and have the beneficial effects of effectively improving the transverse performance of the bogie and improving the diamond deformation resistance of the bogie, and the specific scheme is as follows: the utility model provides a railway freight car is slide wedge and bolster elastic connection damping device for bogie, includes the bolster, side bearer and slide wedge, and the bolster is even between two side bearers, and the bolster sets up the slide wedge in its side bearer position department that sets up, and the slide wedge is located between bolster and the side bearer, and the slide wedge is connected so that the slide wedge only vertical motion through mortise and tenon structural connection with the side bearer inboard, all sets up the elastic component between the both sides face of slide wedge and the bolster, and the elastic component contacts respectively with slide wedge, bolster, and the bottom side of slide wedge and bolster all is provided with damping spring.
Description
Technical Field
The invention relates to the field of railway freight trains, in particular to a vibration damper for elastic connection of a wedge and a swing bolster for a railway freight train bogie and the bogie.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The wedge is a damping device commonly used for three large bogies of a railway wagon, and is one of the most core stress parts for ensuring the running performance of the wagon. The tapered wedge vibration damper for three bogie in railway wagon has the main functions of reducing vertical and transverse vibration between the swing bolster and the side frame, strengthening the connection between the swing bolster and the side frame, inhibiting rhombus deformation of the bogie and improving the righting capacity.
As shown in fig. 1. The existing inclined wedge vibration damper mainly comprises a side frame 1.1, an inclined wedge 1.4, a swing bolster 1.5, a vibration damping spring 1.6 and the like, wherein a main friction surface 1.2 is a contact surface of the inclined wedge and the side frame, and an auxiliary friction surface 1.3 is a contact surface of the inclined wedge and the swing bolster. The damping of vertical and transverse vibration between the swing bolster and the side frame, the restraint of the swing bolster and the side frame in the transverse and longitudinal directions and the restraining capability of the swing bolster on rhombus deformation of the bogie are all realized by the friction force generated by a main friction surface 1.2. The wedge can move vertically or transversely on the main friction surface.
As shown in fig. 2(a) and 2 (b). The main friction surface 2.1 of the side frame is contacted with the main friction surface 4.1 of the wedge in the existing three-piece bogie side frame of the railway wagon.
As shown in fig. 3(a) and 3 (b). In the existing three-piece bogie swing bolster of a railway wagon, a swing bolster auxiliary friction surface 3.1 is in contact with a tapered wedge auxiliary friction surface 4.2.
As shown in fig. 4(a) and 4 (b). The main friction surface 2.1 of the side frame is in contact with the main friction surface 4.1 of the inclined wedge, and the auxiliary friction surface 1.3 of the swing bolster is in contact with the auxiliary friction surface 4.2 of the inclined wedge.
The existing wedge vibration damper mainly has the following defects: firstly, the friction force at the main friction surface attenuates vertical vibration and transverse vibration, so that the selection of a relative friction coefficient is difficult; secondly, the transverse constraint between the swing bolster and the side frame is mainly controlled by the transverse friction force at a main friction surface, the control capability is weaker, and the control capability is sharply reduced along with the increase of the abrasion at the contact surfaces of the wedge, the swing bolster and the side frame; thirdly, the rhombus deformation resistance of the bogie is mainly controlled by the transverse friction force at the main friction surface, and along with the increase of the abrasion at the contact surfaces of the wedge, the swing bolster and the side frame, the rhombus deformation resistance of the bogie can be rapidly reduced, and the snake-running critical speed of the vehicle is reduced; fourthly, as the abrasion at the contact surfaces of the wedge, the swing bolster and the side frame increases, the transverse and longitudinal friction forces at the main friction surface are greatly reduced, and the control capability between the swing bolster and the side frame is weakened.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the tapered wedge and swing bolster elastic connection vibration damper for the railway freight car bogie, which effectively improves the transverse performance of the bogie, and does not reduce the transverse control capability between the swing bolster and a side frame and the diamond deformation resistance capability of the bogie.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a railway freight car is slide wedge and bolster elastic connection damping device for bogie, includes the bolster, side bearer and slide wedge, and the bolster is even between two side bearers, and the bolster sets up the slide wedge in its side bearer position department that sets up, and the slide wedge is located between bolster and the side bearer, and the slide wedge is connected so that the slide wedge only vertical motion through mortise and tenon structural connection with the side bearer inboard, all sets up the elastic component between the both sides face of slide wedge and the bolster, and the elastic component contacts respectively with slide wedge, bolster, and the bottom side of slide wedge and bolster all is provided with damping spring.
According to the damping device, the wedge is connected with the side frame through the mortise and tenon structure, so that the wedge only moves vertically, the friction force at the position of a main friction surface only attenuates the vertical vibration of the bogie, the relative friction coefficient is conveniently selected, the side frame is transversely in elastic connection with the swing bolster through the arrangement of the elastic piece, the transverse performance of the bogie is improved, in addition, due to the arrangement of the mortise and tenon structure, the wedge and the side frame do not have transverse movement displacement, the rhomboid deformation resistance of the bogie is mainly controlled by the elastic piece, and therefore, even if the contact surfaces of the swing bolster, the wedge and the side frame are abraded, the transverse control capability between the swing bolster and the side frame and the rhomboid deformation resistance of the bogie cannot be reduced.
According to the inclined wedge and swing bolster elastic connection vibration damping device for the railway freight car bogie, the surface, which is used for being in contact with the side frame, of the inclined wedge is a main inclined wedge friction surface, the corresponding side frame and inclined wedge contact surface is a main side frame friction surface, the mortise and tenon structure comprises the protrusion arranged on the main inclined wedge friction surface and the groove arranged on the side frame, and the protrusion is matched with the groove to realize connection of the side frame and the inclined wedge.
According to the inclined wedge and swing bolster elastic connection vibration damper for the railway freight car bogie, for convenience in installation, the width of the protrusion arranged on the main friction surface of the inclined wedge is smaller than the width of the inclined wedge, the height of the protrusion is consistent with the height of the inclined wedge, the depth of the groove arranged on the side frame is larger than or equal to the thickness of the protrusion, and the length of the groove of the side frame is larger than or equal to the height of the protrusion of the main friction surface of the inclined wedge.
According to the inclined wedge and swing bolster elastic connection vibration damping device for the railway freight car bogie, in other schemes, the contact surface of the inclined wedge and the side frame is an inclined wedge main friction surface, the contact surface of the corresponding side frame and the inclined wedge is a side frame main friction surface, the mortise and tenon structure comprises a groove arranged on the inclined wedge main friction surface and a bulge arranged on the side frame, and the bulge is matched with the groove to realize the connection of the side frame and the inclined wedge.
According to the inclined wedge and swing bolster elastic connection vibration damper for the railway wagon bogie, the height of the groove arranged on the main friction surface of the inclined wedge is smaller than that of the inclined wedge, the height of the side frame bulge is smaller than or equal to the length of the groove on the main friction surface of the inclined wedge, and the thickness of the side frame bulge is smaller than or equal to the depth of the groove on the main friction surface of the inclined wedge.
According to the inclined wedge and swing bolster elastic connection vibration damping device for the railway freight car bogie, the elastic piece is an elastic cushion with a set elastic coefficient, the elastic cushion has a set height, and the elastic cushion has elasticity, so that the inclined wedge and other parts can be continuously used after being worn for a long time, the transverse control capability between the swing bolster and the side frame cannot be influenced, and the diamond deformation resistance capability of the bogie cannot be reduced.
According to the inclined wedge and swing bolster elastic connection vibration damping device for the railway wagon bogie, two side faces of the inclined wedge, namely the side face in contact with the elastic piece, are vertical faces or inclined faces.
According to the inclined wedge and swing bolster elastic connection vibration damping device for the railway wagon bogie, the contact surface of the swing bolster and the elastic piece is a vertical surface or an inclined surface.
In a second aspect, the invention also discloses a railway wagon bogie, and the inclined wedge and the swing bolster elastic connection vibration damping device for the railway wagon bogie is adopted.
The beneficial effects of the invention are as follows:
1) according to the invention, the inclined wedge is connected with the side frame through the mortise and tenon structure, so that the inclined wedge only moves vertically, the friction force at the main friction surface only attenuates the vertical vibration of the bogie, the relative friction coefficient is convenient to select, and no transverse movement displacement exists between the inclined wedge and the side frame due to the mortise and tenon structure, the diamond deformation resistance of the bogie is mainly controlled by the elastic part, and the side frame and the swing bolster are transversely elastically connected due to the elastic part, so that the transverse performance of the bogie is improved.
2) According to the damping device, the friction force at the main friction surface only attenuates the vertical vibration of the bogie, no transverse movement displacement exists between the wedge and the side frame, the rhombus deformation resistance of the bogie is mainly controlled by the elastic part, the vertical restraint and the transverse restraint of the side frame and the swing bolster are respectively controlled, the vertical restraint is mainly controlled by the friction force at the main friction surface, and the transverse restraint is controlled by the wedge and the elastic part, so that the control parameters between the side frame and the swing bolster can be better optimized;
the lateral performance of the bogie can be effectively improved by controlling the lateral connection between the side frame and the swing bolster in an elastic connection mode;
the rhombus deformation resistance of the bogie is mainly controlled by the inclined wedge and the elastic part, and different design requirements can be met by adjusting the parameters of the elastic part;
after the contact surfaces of the wedge, the swing bolster and the side frame are worn, the transverse control capability between the swing bolster and the side frame and the diamond deformation resistance capability of the bogie are not reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a prior art slide wedge damping device.
FIG. 2(a) is a schematic view of a side frame in a railway freight car truck.
Fig. 2(b) is a partial schematic view from a in fig. 2 (a).
Fig. 3(a) is a schematic view of a bolster of a railway wagon.
FIG. 3(b) is a schematic cross-sectional view E-E in FIG. 3 (a).
Fig. 4(a) is a front view of the wedge.
Fig. 4(b) is a side view of the wedge.
FIG. 5(a) is a schematic view of a vibration damper for elastically connecting a wedge and a bolster of a railway freight car truck according to the present invention.
FIG. 5(b) is a schematic view of the direction A in FIG. 5(a) according to the present invention.
FIG. 6(a) is a schematic side frame diagram of a vibration damping device for elastically connecting a wedge and a bolster of a railway freight car truck according to the present invention.
FIG. 6(b) is a schematic view of the direction A in FIG. 6(a) according to the present invention.
Fig. 7(a) is a schematic view of the bolster.
FIG. 7(b) is a schematic sectional view taken along line E-E in FIG. 7 (a).
FIG. 8(a) is a front view of a wedge of a shock absorber elastically connecting the wedge with a bolster for a railway freight car truck according to the present invention.
FIG. 8(b) is a side view of the wedge of the shock absorber for elastically connecting the wedge with the bolster of the truck according to the present invention.
FIG. 9 is a schematic view of lateral control of a side frame and a bolster of a shock absorber elastically connected with a wedge and a bolster for a railway freight car bogie according to the present invention.
FIG. 10 is a schematic view of the diamond deformation resistance control of the vibration damping device for the elastic connection of the wedge and the swing bolster for the bogie of the rail wagon.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 5.1 side frame, 5.2 wedge, 5.3 elastic pad, 5.4 swing bolster, 5.5 damping spring, 6.1 side frame elevation, 6.2 side frame main friction surface, 7.1 swing bolster and elastic pad contact surface, 7.2 swing bolster auxiliary friction surface, 8.1 wedge auxiliary friction surface, 8.2 wedge main friction surface, 8.3 wedge and elastic pad contact surface.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
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 exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, 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;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Term interpretation section: the terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and for example, the terms "mounted," "connected," and "fixed" may be fixed, detachable, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As introduced by the background technology, the invention provides a vibration damper and a bogie for elastically connecting a wedge and a swing bolster for a railway freight car bogie, aiming at solving the technical problems that the selection of relative friction coefficients is difficult due to the existence of transverse friction force at the main friction surface of a side frame and the wedge in the prior art, and the control capability of the transverse friction force is rapidly reduced along with the prolonging of time, so that the diamond deformation resistance capability of the bogie is influenced.
In a typical embodiment of the present invention, as shown in fig. 5(a) and 5(b), a vibration damping device for elastically connecting a wedge and a bolster for a railway freight car truck comprises a bolster 5.4, side frames 5.1, a wedge 5.2, an elastic member, and a vibration damping spring 5.5, wherein the bolster is connected between the two side frames, the bolster is provided with the wedge at a position where the side frames are provided, the wedge is provided between the bolster and the side frames, the wedge is connected with the inner sides of the side frames through a mortise and tenon structure so that the wedge only vertically moves, the elastic member is provided between both side surfaces of the wedge and the bolster, the elastic member is respectively contacted with the wedge and the bolster, and the vibration damping spring is provided at both bottom sides of the wedge and the bolster.
As shown in fig. 6(a) and 6(b), the wedge is used for with the face that the side bearer contacted is wedge main friction surface, and corresponding side bearer is side bearer main friction surface with the wedge contact surface, and the mortise and tenon structure is including locating the arch of wedge main friction surface and locating the recess of side bearer, the arch cooperatees with the recess, for the convenience of installation, locates wedge main friction surface protruding width is less than the width of wedge, and highly unanimous with the height of wedge, locates the bellied thickness of recess depth more than or equal to of side bearer, the bellied height of the main friction surface of side bearer recess length more than or equal to wedge.
In other examples, the mortise and tenon structure comprises a groove arranged on a main friction surface of the wedge and a protrusion arranged on the side frame, the protrusion is matched with the groove to realize the connection between the side frame and the wedge, the height of the groove arranged on the main friction surface of the wedge is smaller than the height of the wedge, the height of the protrusion of the side frame is smaller than or equal to the length of the groove on the main friction surface of the wedge, and the thickness of the protrusion of the side frame is smaller than or equal to the depth of the groove on the main friction surface of the wedge.
Furthermore, the elastic piece is an elastic cushion with a set elastic coefficient, the elastic cushion has a set height, and the elastic cushion has elasticity, so that the elastic piece can be continuously used after parts such as a wedge and the like are worn after being used for a long time, the transverse control capability between the swing bolster and the side frame cannot be influenced, and the rhombus deformation resistance capability of the bogie cannot be reduced.
In some examples, the elastic pad is preferably made of elastic nylon, but other non-metal elastic pieces can be adopted, and the transverse running performance of the device and the diamond deformation resistance of the bogie can be changed by changing the parameters such as rigidity and the like of the elastic pad, so that the bogie can meet different types of bogies.
As shown in fig. 7(a) and 7(b), the contact surface 7.1 of the swing bolster, which is in contact with the elastic pad, is a vertical surface or an inclined surface, and is matched with the elastic pad 5.3, the sub-friction surface 7.2 of the swing bolster is matched with the sub-friction surface 8.1 of the wedge composition, and in some examples, the contact surface 7.1 of the swing bolster, which is in contact with the elastic pad, is preferably arranged to be an inclined surface so as to facilitate the installation of the elastic pad.
As shown in fig. 8(a) and 8(b), the contact surface 8.3 of the wedge contacting the elastic pad is made into a vertical surface or an inclined surface; the main friction surface 8.2 of the inclined wedge is convex or groove-shaped and is matched with the main friction surface 6.2 of the side frame; the inclined wedge auxiliary friction surface 8.1 is matched with the swing bolster auxiliary friction surface 7.2; also, in some examples, it is preferable that the contact surface 8.3 of the wedge with the resilient pad is provided as a ramp for ease of installation.
As shown in fig. 5(a) and 5(b), the main friction surfaces 6.2 of the side frame are matched with the main friction surfaces 8.2 of the wedge, and the wedge 5.2 can only vertically move and can not transversely move relative to the side frame 5.1; the contact surface 7.1 of the elastic cushion on the swing bolster is matched with the elastic cushion 5.3, the side frame 5.1 and the swing bolster 5.4 are elastically connected transversely through the elastic cushion 5.3, and the transverse displacement of the swing bolster 5.4 is mainly determined by the elastic cushion; the lateral running properties of the bogie can be achieved by adjusting the parameters of the resilient pad 5.3.
As shown in fig. 9, the wedge 5.2 does not move laterally relative to the side frame 5.1. The ability of the bolster 5.4 to move laterally with respect to the side frame 5.1 is controlled primarily by the resilient pad 5.3 and not by the friction force generated at the main friction surface by the wedge 5.2 and the side frame 5.1. By adjusting the parameters of the resilient pad 5.3 the lateral running properties of the bogie can be controlled.
As shown in fig. 10, when the wedge 5.2 does not move transversely relative to the side frame 5.1, and the two side frames 5.1 of the bogie generate rhombus deformation, the capability of inhibiting the rhombus deformation of the bogie is mainly controlled by the wedge and the elastic pad 5.3, but not by the main friction surface, the main friction surface is easy to abrade, thus even if the contact surfaces of the wedge, the swing bolster and the side frames are abraded, the rhombus deformation resistance of the bogie is not reduced because the elastic pad has set elasticity; by adjusting the parameters of the elastic pad 5.3, the rhomboid deformation resistance of the bogie can be controlled.
It should be noted that the wedge and bolster elastic connection damping device for the railway wagon bogie provided by the embodiment can be used for all types of railway wagon three-piece bogies.
In addition, the railway wagon bogie adopts the inclined wedge and swing bolster elastic connection vibration damping device for the railway wagon bogie.
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 (9)
1. The utility model provides a railway freight car is slide wedge and bolster elastic connection damping device for bogie, a serial communication port, including bolster, side bearer and slide wedge, the bolster is even between two side bearers, the bolster sets up the slide wedge at its side bearer position department that sets up, the slide wedge is located between bolster and the side bearer, the slide wedge is connected so that the slide wedge only vertical motion through mortise and tenon structure with the side bearer inboard, all set up the elastic component between the both sides face of slide wedge and the bolster, the elastic component contacts respectively with slide wedge, bolster, the bottom side of slide wedge and bolster all is provided with damping spring.
2. The device as claimed in claim 1, wherein the contact surface of the wedge with the side frame is a main friction surface of the wedge, the contact surface of the corresponding side frame with the wedge is a main friction surface of the side frame, the mortise and tenon structure comprises a protrusion on the main friction surface of the wedge and a groove on the side frame, and the protrusion is matched with the groove.
3. The device as claimed in claim 1, wherein the contact surface of the wedge with the side frame is a main friction surface of the wedge, the contact surface of the corresponding side frame with the wedge is a main friction surface of the side frame, the mortise and tenon structure comprises a groove on the main friction surface of the wedge and a protrusion on the side frame, and the protrusion is matched with the groove.
4. The device as claimed in claim 2, wherein the width of the protrusion formed on the main friction surface of the wedge is smaller than the width of the wedge, and the height of the protrusion is equal to the height of the wedge.
5. The device as claimed in claim 3, wherein the height of the groove formed on the main friction surface of the wedge is smaller than the height of the wedge.
6. The device as claimed in claim 1, wherein the resilient member is a resilient pad having a predetermined spring constant.
7. The device as claimed in claim 1, wherein the two sides of the wedge, i.e. the side contacting the elastic member, are vertical or inclined.
8. The device as claimed in claim 1, wherein the contact surface of the bolster and the elastic member is a vertical surface or an inclined surface.
9. A railway freight car bogie characterized in that a device for damping vibration of a wedge for a railway freight car bogie in elastic connection with a bolster according to any one of claims 1 to 8 is used.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868518.2A CN111976771B (en) | 2020-08-26 | 2020-08-26 | Inclined wedge and swing bolster elastic connection vibration damping device for railway wagon bogie and bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010868518.2A CN111976771B (en) | 2020-08-26 | 2020-08-26 | Inclined wedge and swing bolster elastic connection vibration damping device for railway wagon bogie and bogie |
Publications (2)
| Publication Number | Publication Date |
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| CN111976771A true CN111976771A (en) | 2020-11-24 |
| CN111976771B CN111976771B (en) | 2021-09-21 |
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| CN202010868518.2A Active CN111976771B (en) | 2020-08-26 | 2020-08-26 | Inclined wedge and swing bolster elastic connection vibration damping device for railway wagon bogie and bogie |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406931A (en) * | 2020-11-27 | 2021-02-26 | 中车长江铜陵车辆有限公司 | High-performance railway wagon swing bolster structure and bogie |
| CN113581238A (en) * | 2021-07-29 | 2021-11-02 | 中车齐齐哈尔车辆有限公司 | Vibration damping structure of vehicle, bogie and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1305582A (en) * | 1961-08-25 | 1962-10-05 | Arbel Ets | Progressive action friction damping device |
| US3461815A (en) * | 1966-08-01 | 1969-08-19 | Midland Ross Corp | Snubbed railway truck bolster |
| US4230047A (en) * | 1978-10-20 | 1980-10-28 | A. Stucki Company | Railway truck bolster friction assembly |
| US4915031A (en) * | 1981-06-29 | 1990-04-10 | Hansen, Inc. | Railway truck damping assembly |
| EP1084927A1 (en) * | 1999-09-16 | 2001-03-21 | AMSTED Industries Incorporated | Side frame-bolster interface for railcar bogie assembly |
| CN201633740U (en) * | 2010-02-22 | 2010-11-17 | 包头北方创业股份有限公司 | High-diamond-resistant wedge |
| CN204586903U (en) * | 2015-05-13 | 2015-08-26 | 齐齐哈尔轨道交通装备有限责任公司 | Bogie truck, shock attenuation unit and wedge structure |
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2020
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1305582A (en) * | 1961-08-25 | 1962-10-05 | Arbel Ets | Progressive action friction damping device |
| US3461815A (en) * | 1966-08-01 | 1969-08-19 | Midland Ross Corp | Snubbed railway truck bolster |
| US4230047A (en) * | 1978-10-20 | 1980-10-28 | A. Stucki Company | Railway truck bolster friction assembly |
| US4915031A (en) * | 1981-06-29 | 1990-04-10 | Hansen, Inc. | Railway truck damping assembly |
| EP1084927A1 (en) * | 1999-09-16 | 2001-03-21 | AMSTED Industries Incorporated | Side frame-bolster interface for railcar bogie assembly |
| CN201633740U (en) * | 2010-02-22 | 2010-11-17 | 包头北方创业股份有限公司 | High-diamond-resistant wedge |
| CN204586903U (en) * | 2015-05-13 | 2015-08-26 | 齐齐哈尔轨道交通装备有限责任公司 | Bogie truck, shock attenuation unit and wedge structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406931A (en) * | 2020-11-27 | 2021-02-26 | 中车长江铜陵车辆有限公司 | High-performance railway wagon swing bolster structure and bogie |
| CN113581238A (en) * | 2021-07-29 | 2021-11-02 | 中车齐齐哈尔车辆有限公司 | Vibration damping structure of vehicle, bogie and vehicle |
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| Publication number | Publication date |
|---|---|
| CN111976771B (en) | 2021-09-21 |
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