CN2411946Y - Combined oblique wedge dumping device of vehicle - Google Patents
Combined oblique wedge dumping device of vehicle Download PDFInfo
- Publication number
- CN2411946Y CN2411946Y CN 99252270 CN99252270U CN2411946Y CN 2411946 Y CN2411946 Y CN 2411946Y CN 99252270 CN99252270 CN 99252270 CN 99252270 U CN99252270 U CN 99252270U CN 2411946 Y CN2411946 Y CN 2411946Y
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- China
- Prior art keywords
- wedge
- side frame
- utility
- model
- freight cars
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- Expired - Fee Related
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Abstract
The utility model relates to a combined oblique wedge dumping device which is suitable for three massive piece type or frame type bogie frames of railway freight cars and particularly high-speed and heavy-duty freight cars. The utility model is characterized in that one side or both sides of a main wedge is (are) provided with one or two forward or backward auxiliary wedge (wedges); a side frame wearing plate and an auxiliary wedge wearing plate which are used for the main wedge and the auxiliary wedge are arranged on one side frame column. The utility model enhances longitudinal contact force and rigidity between a swing bolster and the side frame when the side frame makes a rhombic movement and obviously enhances the anti-rhomboid rigidity of the freight cars and particularly empty freight cars by that the auxiliary wedge is additionally provided. The utility model has the characteristics of simple and reliable structure and convenient maintenance and is also suitable for the speeding up requirements of the present three massive piece type bogie frames.
Description
The utility model is to adapt to railway truck, particularly fast and the combination type slant wedge shock attenuation unit that uses of heavy-duty freight car three-major-items formula or framework type bogie truck.
The traditional monocline wedge-type shock absorber of the many employings of roller bearing adapter stabilizer bar of China's existing band friction shock absorber.A large amount of at present three piece trucks that use have a bolster and two split type accurate frameworks that bogie side frame constitutes.In the axle box suspended portion of three piece truck central authorities bolster end or framework type bogie truck, the forward monocline wedge friction shock absorber that wedge angle makes progress is housed usually, with to right the hanging down, horizontal stroke, motion such as sidewinder and carry out vibration damping of bolster, bogie side frame, framework and wheel.Because wedge spring-loaded face rises with the friction face abrasion, friction face easily forms concavo-convex arc contact surface, these all can obviously reduce the anti-water chestnut constraint of the inner bolster of three-major-items to left and right side frame, form the rhombus motion that the relative front and back of left and right side frame offset, and cause bogie truck to produce the self-excitation hunting.Therefore after the abrasion of monocline wedge, can weaken the diamond resistant rigidity of the control effect of crawling, destroy the running stability and the stability of empty wagons, loaded vehicle, when serious empty wagons will 60～70 kilometers/time appearance unstability of acutely crawling, jeopardize traffic safety.For overcoming the problem that diamond resistant rigidity descends, carried out multiple trial both at home and abroad, mainly between left and right side frame, set up spanner or shear resisting board, add large-diamond resistant rigidity, but technology is complicated, expense is higher.Also have by improving the wedge material, improve resistance to abrasion, slow down the method for improper abrasion, but can't solve the problem that anti-water chestnut effect descends gradually under the monocline wedge.
The purpose of this utility model provides a kind of combination wedge of secondary wedge forward or backwards that has, and it can improve the cushioning performance and the diamond resistant rigidity of roller bearing adapter stabilizer bar tradition monocline wedge shock absorber effectively.
The utility model is achieved in that in the one-sided or both sides of the main wedge (1) that is supported by pillow spring (8) increases one or two secondary wedge (2) forward or backwards, main wedge (1) and secondary wedge (2) can shared bogie side frame wearing plates (3), also can be at the secondary wedge wearing plate (4) of the secondary wedge special use of upright main (9) arranged outside of bogie side frame, secondary wedge (2) can adopt composite material or metallic material, and has wearing face.If main wedge (1) and secondary wedge (2) contact in the side, its contact surface can be vertical surface or inclined-plane.Go up a pressing spring of precompressed (5) at secondary wedge (2), the other end of pressing spring (5) is bearing on the spring bearing housing (6) of bogie side frame.During empty wagons, vehicle load diminishes, and bolster (7) rises under pillow spring (8) effect, and bolster (7) drives secondary wedge (2) upward movement and compresses pressing spring (5), thereby the friction face pressure that causes secondary wedge (2) becomes big, and the diamond resistant rigidity of contact stiffness and empty wagons also increases thereupon.The spring bearing housing (6) of pressing spring (5) also can be located on the bolster (7), then forms the secondary wedge (2) of normal friction.
The utility model is by setting up secondary wedge, vertical contact force and rigidity when having improved the motion of bogie side frame rhombus between bolster and bogie side frame, the spacing of reverse contact force about reaching, therefore improved the particularly diamond resistant rigidity of empty wagons of lorry significantly, also can significantly improve simultaneously vehicle crawl critical speed and stationarity, reduce wheel to the angle of attack, improve wheel-rail wear, improve safety.Owing to have characteristics simple and reliable for structure, economical and practical, easy to maintenance, the utility model also adapts to the needs of existing three piece truck speed-raising.
Fig. 1 is the front section view with the combination wedge device of secondary wedge.
Fig. 2 is the birds-eye view with the combination wedge device of secondary wedge.
Fig. 3 is the side sectional view with the combination wedge device of secondary wedge.
Below in conjunction with Fig. 1～Fig. 3, narrate embodiment of the present utility model:
The utility model is made up of the main wedge (1), two of a pillow spring (8) supporting and the main wedge joint near secondary wedge (2), pressing spring (5), bogie side frame wearing plate (3), the bolster (7) of being with Eight characters face and spring bearing housing (6) etc.Main wedge (1) and secondary wedge (2) overlay bolster (7) and bogie side frame (10) respectively under the effect of pillow spring (8) and pressing spring (5).Main wedge (1) increases with load-carrying and tightly retrains the rhombus displacement of bolster (7) and bogie side frame (10), and secondary wedge (2) then reduces with load-carrying and tightly retrains the rhombus displacement of bolster (7) and bogie side frame.Pressing spring (5) is in the state that compresses in advance under the vehicle zero load, then loosen during loaded vehicle, thereby reach and reduce abrasion and guarantee empty wagons diamond resistant rigidity abundance.
When old-fashioned three piece truck is transformed, cause is possibility double teeming bolster seldom, can be at the secondary wedge (2) of one or two separation of arranged outside of wedge (1), special use abrasion panel seat and secondary wedge wearing plate (4) at the secondary wedge of side frame column (9) arranged outside (2), pressing spring (5) on spring bearing housing (6) then compresses secondary wedge (2), and by the rhombus motion of its constraint bolster (7) with bogie side frame (10).Because major-minor wedge distance is drawn back, diamond resistant rigidity obviously increases, and adjusts the pre compressed magnitude of pressing spring (5) and the angle of secondary wedge (2) and can adjust required diamond resistant rigidity easily.
Claims (2)
1. combination oblique wedge vibration damper that is applicable to that railway goods train bogie uses with main wedge and bearing spring, it is characterized in that installing one or two secondary wedge (2) forward or backwards, and bogie side frame wearing plate (3) and the secondary wedge wearing plate (4) that uses for main wedge (1) and secondary wedge (2) is set on side frame column (9) in the one-sided or both sides of main wedge (1).
2. combination oblique wedge vibration damper according to claim 1 is characterized in that going up a pressing spring of precompressed (5) at secondary wedge (2), and the other end of pressing spring (5) is bearing on the spring bearing housing (6) of bolster (7) and bogie side frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99252270 CN2411946Y (en) | 1999-12-28 | 1999-12-28 | Combined oblique wedge dumping device of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99252270 CN2411946Y (en) | 1999-12-28 | 1999-12-28 | Combined oblique wedge dumping device of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2411946Y true CN2411946Y (en) | 2000-12-27 |
Family
ID=34036550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99252270 Expired - Fee Related CN2411946Y (en) | 1999-12-28 | 1999-12-28 | Combined oblique wedge dumping device of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2411946Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410120C (en) * | 2006-09-01 | 2008-08-13 | 中国南车集团眉山车辆厂 | Railway freight-car wide rail cast-steel bogie |
| CN106828527A (en) * | 2015-12-03 | 2017-06-13 | 阿母斯替德铁路公司 | Bogies for railway vehicles with frictional damping |
-
1999
- 1999-12-28 CN CN 99252270 patent/CN2411946Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410120C (en) * | 2006-09-01 | 2008-08-13 | 中国南车集团眉山车辆厂 | Railway freight-car wide rail cast-steel bogie |
| CN106828527A (en) * | 2015-12-03 | 2017-06-13 | 阿母斯替德铁路公司 | Bogies for railway vehicles with frictional damping |
| US10293839B2 (en) * | 2015-12-03 | 2019-05-21 | Amsted Rail Company, Inc. | Railway car truck with friction damping |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGJI UNIVERSITY Free format text: FORMER NAME OR ADDRESS: SHANGHAI RAILWAY UNIV. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Tongji University Patentee before: Shanghai Railway Univ. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |