CN113942534A - Chassis shock absorber for inhibiting transverse vibration of railway vehicle body - Google Patents
Chassis shock absorber for inhibiting transverse vibration of railway vehicle body Download PDFInfo
- Publication number
- CN113942534A CN113942534A CN202111360126.6A CN202111360126A CN113942534A CN 113942534 A CN113942534 A CN 113942534A CN 202111360126 A CN202111360126 A CN 202111360126A CN 113942534 A CN113942534 A CN 113942534A
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- Prior art keywords
- vibration
- vehicle body
- damping
- transverse
- main body
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- Pending
Links
- 230000035939 shock Effects 0.000 title claims abstract description 23
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 17
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 7
- 238000013016 damping Methods 0.000 claims abstract description 51
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000010687 lubricating oil Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
Images
Classifications
-
- 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
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
Abstract
The invention relates to an underframe shock absorber for inhibiting transverse vibration of a railway vehicle body, which comprises a bearing structure and a shock absorption structure, wherein the bearing structure comprises a supporting plate main body, a bearing rod, a cover plate and a top plate, wherein the supporting plate main body is internally provided with a transverse groove, the bearing rod is used for fixing the supporting plate main body on the underframe of the vehicle body, the cover plate is used for covering and sealing the groove of the supporting plate main body, the top plate is detachably arranged at the left side and the right side of the transverse groove on the supporting plate main body, and the shock absorption structure is positioned in the space of the transverse groove and comprises a shock absorption mass plate and damping lubricating oil, wherein the shock absorption mass plate realizes transverse shock absorption through metal springs at the left side and the right side and provides rigidity, and the damping lubricating oil is filled in the space between the shock absorption mass plate and the inner wall of the transverse groove and is used for providing damping. Compared with the prior art, the invention has the advantages of simple assembly mode, reliable safety performance, effective control of transverse vibration of the vehicle body, reduction of vibration noise of the vehicle body, improvement of running stability and riding comfort of the vehicle and the like.
Description
Technical Field
The invention relates to the field of rail transit equipment and facilities, in particular to an underframe shock absorber for inhibiting transverse vibration of a rail vehicle body.
Background
With the rapid development of the rail transit industry in China, rail transit becomes a social hot topic, national policies put forward new prospects on environmental protection, sustainable development and the like in the rail transit planning construction and operation processes, and people put forward higher requirements on riding safety, stability and riding comfort.
However, with the great increase of the running speed and the load of the train, the problem of abnormal vibration of the train, such as transverse shaking of the train body, is increasingly prominent, and great threats are formed on the running stability, the safety and the riding comfort of the train. The factors causing the problem of transverse abnormal vibration of the train body are numerous, such as performance evolution of key parts of the train, disturbance of external transverse wind, wheel-rail abrasion and the like, and all determine the running quality of the train.
In addition, the abnormal vibration problem of the vehicle is accompanied by noise and environmental pollution, which negatively affects the environmental planning and construction of the rail transit and indirectly increases the construction and operation cost of the rail transit. According to the existing research and practice, the following components are adopted: the abnormal vibration of the train body is reduced, the running quality of the train is improved, and meanwhile, the construction and operation cost of the rail transit can be effectively reduced.
Therefore, the method has important practical significance and value for treating and solving the problem of transverse abnormal vibration of the vehicle body of the railway vehicle.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an underframe shock absorber for inhibiting the transverse vibration of a railway vehicle body.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an restrain rail vehicle automobile body transverse vibration's chassis shock absorber, includes bearing structure and damping structure, bearing structure include inside set up the layer board main part of horizontal recess, be used for fixing the layer board main part at the automobile body chassis the bearing bar, be used for covering sealed apron and the roof of detachable installation in the lateral groove left and right sides position department on the layer board main part to the recess of layer board main part, damping structure be located the space of horizontal recess, including the damping quality board that realizes horizontal damping and provide rigidity through the metal spring of horizontal left and right sides and fill in the damping lubricating oil that is used for providing damping in the space between damping quality board and horizontal recess inner wall.
Four bearing rods are arranged and are respectively fixed at four corners of the upper surface of the supporting plate main body.
The upper end of the bearing rod is fixedly connected with the chassis of the vehicle body through a lifting hole, and the joint of the lower end of the bearing rod and the supporting plate main body is provided with a reinforcing rib.
And two ends of the cover plate are respectively and hermetically mounted with the top plate through cover plate connecting screws so as to realize the sealing protection effect on the upper surface of the vibration damping mass plate, the metal spring and the damping lubricating oil.
The top plate is detachably and fixedly installed with the supporting plate main body through a top plate connecting screw, and is used for realizing sealing protection of the side face and replacement and maintenance of the vibration reduction mass plate and the metal spring.
The damping mass plate is characterized in that first spring fixing rods are arranged on the left side and the right side of the damping mass plate, second spring fixing rods are arranged on the inner side of the top plate, and two ends of the metal spring are respectively sleeved on the first spring fixing rods and the second spring fixing rods to achieve positioning and guiding.
The metal spring is in a micro-compression state when not in work.
The inner side wall of the transverse groove of the supporting plate main body is provided with a rubber layer for protecting the damping mass plate and the inner side wall of the supporting plate main body when impact occurs.
The cover plate is a transparent cover plate and is used for observing the state of the vibration reduction structure in the supporting plate main body.
Under the static working condition of the vehicle, the vibration reduction mass plate and the supporting plate main body do not move relatively in the longitudinal direction and the transverse direction of the vehicle body, and the metal spring is in a micro-compression state;
under the working condition of vehicle operation, when the vehicle generates longitudinal acceleration, the vibration damping mass plate and the supporting plate main body generate relative motion along the longitudinal direction of the vehicle body, and when the relative motion is large enough, the rubber layer on the inner side wall of the transverse groove of the supporting plate main body plays a role in buffering; when a vehicle runs and transverse disturbance or a suspension element fails, the vehicle body vibrates transversely, the vibration reduction mass plate and the supporting plate main body move relatively along the transverse direction of the vehicle body, and the vibration reduction mass plate vibrates in the transverse groove of the supporting plate main body along the transverse direction of the vehicle body under the action of the metal spring and the damping lubricating oil, so that the transverse vibration of the vehicle body is reduced, and the running stability and the riding comfort of the vehicle are improved.
Compared with the prior art, the invention has the following advantages:
firstly, the shock absorber is integrally arranged on the underframe of the vehicle body, the assembly mode is simple, the safety performance is reliable, and the shock absorber can work efficiently and reliably for a long time.
The structure is simple, the transverse vibration of the vehicle body is effectively inhibited, the vibration noise of the vehicle body is reduced, and the running stability and the riding comfort of the vehicle are improved.
And thirdly, the groove structure is adopted, the mass plate is arranged in the groove of the supporting plate main body, the installation is convenient, and the integration of the whole structure is good.
And fourthly, damping lubricating oil is adopted to provide damping for system vibration, and the damping device has more advantages compared with the traditional damping element which is frequently maintained and replaced.
And fifthly, the detachable sealing cover plate is adopted, so that the internal structure is protected, and meanwhile, the vibration reduction structural element is convenient to replace and maintain.
Sixthly, the structure of the invention has simple manufacturing process and low production cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
Fig. 3 is a schematic view of the structure of a vibration-damping mass plate element according to the invention.
Fig. 4 is a schematic structural view of the top plate member of the present invention.
The notation in the figure is:
1. lifting hole, 2, bearing rod, 3, cover plate, 4, cover plate connecting screw, 5, reinforcing rib, 6, supporting plate main body, 7, top plate, 8, spring fixing rod, 9, damping lubricating oil, 10, damping mass plate, 11, metal spring, 12, top plate connecting screw, 13 and rubber layer.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in FIG. 1, the invention provides an underframe shock absorber for controlling transverse vibration of a railway vehicle body, which mainly comprises a bearing structure and a shock absorption structure, wherein the bearing structure comprises four basic components, namely a bearing rod 2, a cover plate 3, a supporting plate main body 6 and a top plate 7, and the shock absorption structure comprises a shock absorption mass plate 10, a metal spring 11 and damping lubricating oil 9.
The whole device is fixedly connected with a vehicle body underframe through a lifting hole 1 on a bearing rod 2, so that the vibration reduction mass plate 10 is transverse to the vehicle body along the axial vibration direction of a metal spring 11; the connection between the supporting plate main body 6 and the bearing rod 2 is provided with the reinforcing ribs 5, so that the structural reliability can be improved; the cover plate 3 is fixed with the top plate 7 through the screws 4 to form a sealed space with the supporting plate main body 6, so that the vibration damping mass plate 10, the metal spring 11 and the damping lubricating oil 9 are protected; the top plate 7 is detachably connected with the supporting plate main body 6 through screws so as to install and replace the vibration reduction mass plate 10 and the metal spring 11; the metal spring 11 is positioned by the spring fixing rod 8 on the top plate 7 and the spring fixing rod 8 on the damping mass plate 10.
As shown in fig. 2, the rubber layer 13 on the side wall of the groove of the pallet body 6 can protect the damping mass plate from impact with the inner side wall of the pallet body, the metal spring 11 provides rigidity for the vibration of the damping mass plate 10, and the damping lubricant 9 between the damping mass plate 10 and the groove of the pallet body 6 can provide damping for the vibration of the damping mass plate.
As shown in fig. 3 and 4, the spring fixing rods 8 are welded on the vibration damping mass plate 10 and the top plate 7 to position the metal springs 11 and ensure that the metal springs 11 are always in a micro-compression state when the vibration damper is not in operation.
In the embodiment, when the vehicle is in a static working condition, the vibration reduction mass plate 10 and the supporting plate main body 6 do not move relatively in the longitudinal direction and the transverse direction of the length and the width of the vehicle body, and the metal spring 11 is in a micro-compression state; under the working condition of vehicle running, when the vehicle generates longitudinal acceleration, such as the working condition of vehicle starting and braking, the vibration damping mass plate 10 and the supporting plate main body 6 generate relative motion along the longitudinal direction of the length of the vehicle body, and when the relative motion is large enough, the rubber layer 13 on the inner side wall of the supporting plate main body 6 plays a role in slowing down the impact; when a vehicle runs, when external crosswind, line irregularity and other conditions of transverse disturbance, suspension element failure and the like occur, transverse vibration occurs to the vehicle body, the vibration reduction mass plate 10 positioned in the groove of the supporting plate main body 6 generates relative motion along the transverse direction of the width of the vehicle body, and under the action of the metal spring 11 and the damping lubricating oil 9, the vibration reduction mass plate 10 vibrates along the transverse direction of the width of the vehicle body in the groove of the supporting plate main body 6, so that the transverse vibration of the vehicle body is reduced, the running stability and riding comfort of the vehicle are improved, the structure is simple, the control method is easy, and the reliability of a vibration reduction structure is high.
Claims (10)
1. The utility model provides an restrain rail vehicle automobile body lateral vibration's chassis shock absorber, characterized in that, includes bearing structure and damping structure, bearing structure include that inside sets up the layer board main part (6) of horizontal recess, be used for fixing layer board main part (6) bearing bar (2) on the automobile body chassis, be used for covering sealed apron (3) and the detachable roof (7) of installing in the horizontal recess left and right sides position department on layer board main part (6) to the recess of layer board main part (6), damping structure be located the space of horizontal recess, including through horizontal left and right sides metal spring (11) realize horizontal damping and provide the damping quality board (10) of rigidity and pack between damping quality board (10) and horizontal recess inner wall in order to provide damped damping lubricating oil (9).
2. The chassis vibration absorber for suppressing the lateral vibration of the railway vehicle body as claimed in claim 1, wherein four load bearing bars (2) are fixed at four corners of the upper surface of the pallet body (6).
3. The chassis vibration absorber for inhibiting the transverse vibration of the railway vehicle body as claimed in claim 1, wherein the upper end of the bearing rod (2) is fixedly connected with the chassis of the vehicle body through a hanging hole (1), and the connecting position of the lower end of the bearing rod and the supporting plate main body (6) is provided with a reinforcing rib (5).
4. The chassis vibration absorber for suppressing the transverse vibration of the railway vehicle body as claimed in claim 1, wherein both ends of the cover plate (3) are respectively and hermetically mounted with the top plate (7) through cover plate connecting screws (4) so as to realize the sealing protection effect of the upper surface of the vibration damping mass plate (10), the metal spring (11) and the damping lubricating oil (9).
5. The underframe shock absorber for suppressing transverse vibration of a railway vehicle body as claimed in claim 1, wherein the top plate (7) is detachably fixed and mounted with the pallet body (6) through a top plate connecting screw (12) for realizing side sealing protection and replacement and maintenance of the damping mass plate (10) and the metal spring (11).
6. The chassis damper for inhibiting the transverse vibration of the railway vehicle body as claimed in claim 1, wherein the left and right sides of the damping mass plate (10) are provided with first spring fixing rods, the inner side of the top plate (7) is provided with second spring fixing rods, and two ends of the metal spring (11) are respectively sleeved on the first spring fixing rods and the second spring fixing rods for realizing positioning and guiding.
7. The undercarriage damper for damping lateral vibrations of a railway vehicle body according to claim 6, characterized in that the metal spring (11) is under slight compression when not in operation.
8. The underframe shock absorber for suppressing transverse vibration of a railway vehicle body as claimed in claim 1, wherein the inside walls of the transverse grooves of the pallet body (6) are provided with rubber layers (13) for protecting the shock absorbing mass plates (10) from impact with the inside walls of the pallet body (6).
9. The underframe shock absorber for damping lateral vibration of a railway vehicle car body as claimed in claim 1, wherein said cover plate (3) is a transparent cover plate.
10. The chassis vibration absorber for suppressing the transverse vibration of the vehicle body of the railway vehicle as claimed in claim 1, wherein under the static working condition of the vehicle, the vibration absorbing mass plate (10) and the supporting plate main body (6) do not move relatively in the longitudinal direction and the transverse direction of the vehicle body, and the metal spring (11) is in a micro-compression state;
under the operating condition of a vehicle, when the vehicle generates longitudinal acceleration, the vibration damping mass plate (10) and the supporting plate main body (6) generate relative motion along the longitudinal direction of the vehicle body, and when the relative motion is large enough, the rubber layer (13) on the inner side wall of the transverse groove of the supporting plate main body (6) plays a role in buffering; when a transverse disturbance or a suspension element fault condition occurs during vehicle running, the vehicle body generates transverse vibration, the vibration reduction mass plate (10) and the supporting plate main body (6) generate relative motion along the transverse direction of the vehicle body, and the vibration reduction mass plate (10) vibrates in the transverse groove of the supporting plate main body (6) along the transverse direction of the vehicle body under the action of the metal spring (11) and the damping lubricating oil (9), so that the transverse vibration of the vehicle body is reduced, and the running stability and the riding comfort of the vehicle are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360126.6A CN113942534A (en) | 2021-11-17 | 2021-11-17 | Chassis shock absorber for inhibiting transverse vibration of railway vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111360126.6A CN113942534A (en) | 2021-11-17 | 2021-11-17 | Chassis shock absorber for inhibiting transverse vibration of railway vehicle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113942534A true CN113942534A (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111360126.6A Pending CN113942534A (en) | 2021-11-17 | 2021-11-17 | Chassis shock absorber for inhibiting transverse vibration of railway vehicle body |
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| CN (1) | CN113942534A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492941A (en) * | 2008-12-26 | 2009-07-29 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Dual-tuning vibration reduction method for liquid quality |
| CN101761146A (en) * | 2010-01-04 | 2010-06-30 | 湖南大学 | Permanent-magnet type eddy current tuned mass damper |
| KR20120068119A (en) * | 2010-12-17 | 2012-06-27 | 현대중공업 주식회사 | High damping horizontal dynamic absorber |
| CN203129351U (en) * | 2012-12-29 | 2013-08-14 | 长安大学 | Combined vibration reducing device |
| CN103335057A (en) * | 2013-07-10 | 2013-10-02 | 青岛科而泰环境控制技术有限公司 | Tuned mass damper with frame |
| CN203499048U (en) * | 2013-09-10 | 2014-03-26 | 隔而固(青岛)振动控制有限公司 | Frequency regulating device for swinging type turning mass damper |
| CN206128343U (en) * | 2016-09-19 | 2017-04-26 | 西安交通大学 | Flexible baffle oscillator of frequency modulation shock absorber is united to liquid |
| CN109780114A (en) * | 2019-01-18 | 2019-05-21 | 上海材料研究所 | A kind of adaptive horizontal direction eddy current tuned mass damper |
| CN110565936A (en) * | 2019-08-30 | 2019-12-13 | 广东博智林机器人有限公司 | Tuned mass damper device and suspension construction robot with same |
| CN112160439A (en) * | 2020-09-30 | 2021-01-01 | 广州大学 | Swinging tuned mass damper |
| CN112177187A (en) * | 2020-10-31 | 2021-01-05 | 北京羿射旭科技有限公司 | Ultra-low frequency mass tuning damper |
| US20210102395A1 (en) * | 2017-12-14 | 2021-04-08 | Permasteelisa S.P.A. | Dynamic vibration damping system for high- rise buildings |
-
2021
- 2021-11-17 CN CN202111360126.6A patent/CN113942534A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492941A (en) * | 2008-12-26 | 2009-07-29 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Dual-tuning vibration reduction method for liquid quality |
| CN101761146A (en) * | 2010-01-04 | 2010-06-30 | 湖南大学 | Permanent-magnet type eddy current tuned mass damper |
| KR20120068119A (en) * | 2010-12-17 | 2012-06-27 | 현대중공업 주식회사 | High damping horizontal dynamic absorber |
| CN203129351U (en) * | 2012-12-29 | 2013-08-14 | 长安大学 | Combined vibration reducing device |
| CN103335057A (en) * | 2013-07-10 | 2013-10-02 | 青岛科而泰环境控制技术有限公司 | Tuned mass damper with frame |
| CN203499048U (en) * | 2013-09-10 | 2014-03-26 | 隔而固(青岛)振动控制有限公司 | Frequency regulating device for swinging type turning mass damper |
| CN206128343U (en) * | 2016-09-19 | 2017-04-26 | 西安交通大学 | Flexible baffle oscillator of frequency modulation shock absorber is united to liquid |
| US20210102395A1 (en) * | 2017-12-14 | 2021-04-08 | Permasteelisa S.P.A. | Dynamic vibration damping system for high- rise buildings |
| CN109780114A (en) * | 2019-01-18 | 2019-05-21 | 上海材料研究所 | A kind of adaptive horizontal direction eddy current tuned mass damper |
| CN110565936A (en) * | 2019-08-30 | 2019-12-13 | 广东博智林机器人有限公司 | Tuned mass damper device and suspension construction robot with same |
| CN112160439A (en) * | 2020-09-30 | 2021-01-01 | 广州大学 | Swinging tuned mass damper |
| CN112177187A (en) * | 2020-10-31 | 2021-01-05 | 北京羿射旭科技有限公司 | Ultra-low frequency mass tuning damper |
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Application publication date: 20220118 |