CN201472389U - High-speed railway vehicle floating floor vibration damper - Google Patents

High-speed railway vehicle floating floor vibration damper Download PDF

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Publication number
CN201472389U
CN201472389U CN2009201700528U CN200920170052U CN201472389U CN 201472389 U CN201472389 U CN 201472389U CN 2009201700528 U CN2009201700528 U CN 2009201700528U CN 200920170052 U CN200920170052 U CN 200920170052U CN 201472389 U CN201472389 U CN 201472389U
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CN
China
Prior art keywords
vehicle
metal
shock absorber
speed railway
railway vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009201700528U
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Chinese (zh)
Inventor
赵锦峰
孙召进
徐宏伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Qingdao Sifang Co Ltd
Original Assignee
CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd filed Critical CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority to CN2009201700528U priority Critical patent/CN201472389U/en
Application granted granted Critical
Publication of CN201472389U publication Critical patent/CN201472389U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a high-speed railway vehicle floating floor vibration damper, which is arranged in the length direction of a vehicle body in a segmental manner, and comprises a metal support beam and a metal beam with an inverted U-shaped section; the metal support beam is fixedly connected with a bottom plate of the vehicle body; the metal beam is fixedly connected with an in-vehicle floor; flanges on the two sides of the top part of the metal support beam and two lateral side edges of the metal beam adopt the integral structure through the sulfurization of damping rubber; and one side edge of the metal beam and the vertical center line of the vibration damper form an included angle. The vibration damper guarantees the effective attenuation of the vehicle body vibration, reduces the in-vehicle noise, improves the in-vehicle comfort degree, selects the proper length and the arrangement position according to the layout of pipelines between the vehicle body and the in-vehicle floor, the in-vehicle load and the vehicle body vibration regulation; since the damping rubber in the vibration damper bears the double loads of the compression deformation and the shearing deformation, the damping rubber has larger lateral rigidity in deformation and small lateral deformation to guarantee the in-vehicle transversal stationarity in the high-speed running of a vehicle.

Description

High-speed railway vehicle floating floor shock absorber
Technical field
The utility model relates to a kind of rolling stock equipment, and particularly a kind of shock absorber of high-speed railway vehicle floating floor belongs to the rolling stock equipment technical field.
Background technology
On existing vehicle, especially on rolling stock, install on the floor generally is to be directly fixed on the car body by support beam, and rubber tie plate is leaned in damping vibration attenuation substantially, does not have special vibration-proof structure, so effectiveness in vibration suppression is limited.Along with developing rapidly of high-speed railway vehicle, also just more and more higher to the requirement of Vehicle damper noise reduction and comfort level.
Vibration of vehicle and noise are to pass to floor in the compartment by support beam, to making the floor produce vibration, thereby radiated noise in car, because as high speed rolling stock running velocity height such as motor train unit, vibration and noise all can obviously aggravate than the common railway vehicle, the coupling situation is also more complicated, and common ground board mounting structure can not the effective attenuation Vehicular vibration, does not guarantee passenger's traveling comfort.
In recent years, in order to reduce noise in the compartment, on vehicle, generally adopt the floating floor structure, need not be rigidly connected between floating floor and the support beam but adopt the resilient connection structure, what generally adopt at present is that the elastic layer that rubber damper one class is set between floor and support beam is realized floating building, shock damping action by rubber pad reduces car and vibrates transmission in car outward, but common rubber damper can not reach the requirement of high-speed railway vehicle vibration and noise reducing.In addition, because also will lay many pipelines between hull bottom plate and the floor compartment, so existing shock pad etc. all are point-like settings, this has also influenced its effectiveness in vibration suppression.
Summary of the invention
The utility model main purpose is to address the above problem and is not enough, provide a kind of can the effective attenuation body oscillating, reduce internal car noise, can guarantee that vehicle space installs the high-speed railway vehicle floating floor shock absorber of relation simultaneously.
For achieving the above object, the technical solution of the utility model is:
A kind of high-speed railway vehicle floating floor shock absorber, this shock absorber is arranged along the segmentation of length over ends of body direction, it comprises that a metal support beam, section roughly are inverted U-shaped beams of metal, described metal support beam is captiveed joint with hull bottom plate, described beams of metal is captiveed joint with floor in the car, is integral structure by the vibration isolation rubber sulfuration between the flange of both sides, described metal support beam top and the dual-side of described beams of metal.
The material of described metal support beam is an aluminium section bar, and the material of beams of metal is an aluminium sheet, and metal support beam is identical with the length of beams of metal.
The utility model further improves and is to have an angle between the side of described beams of metal and the vertical line of centers of this shock absorber, and described angle is preferably the 5-30 degree, needs through calculating.
Content to sum up, high-speed railway vehicle floating floor shock absorber provided by the utility model forms an integral structure after installation, damping capacity by rubber plays damping of vibrations, guarantee the effective attenuation body oscillating, reduce internal car noise, improve the car comfort inside.Simultaneously, this shock absorber sectional is provided with, can select suitable length and the position is set according to the rule of load and body oscillating in the pipe line arrangement situation between the floor, the car in car body and the car, make it meet the wheel track transfer of vibration rule of rolling stock when high-speed cruising, satisfy the operating needs of rolling stock.
Vibration isolation rubber in this damper structure bears the dual load of compressive deformation and shear deformation, more can give full play to the damping capacity of rubber, vibration isolation rubber lateral stiffness when distortion is bigger, but lateral deformation is less, can satisfy the less requirement of lateral deformation under the rolling stock condition that vertical distortion is bigger when high-speed cruising, because under the same load condition, the lateral deformation of vibration isolation rubber is more little, can guarantee the horizontal stationarity in the car more.
Description of drawings
Fig. 1 the utility model structural representation;
The A-A cutaway view of Fig. 2 Fig. 1.
As depicted in figs. 1 and 2, metal support beam 1, beams of metal 2, flange 3, vibration isolation rubber 4, vertical line of centers 5, beams of metal side 6, auxiliary hole 7.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
To shown in Figure 2, high-speed railway vehicle floating floor shock absorber described in the utility model is fixed between the interior floor of hull bottom plate and car, is used for support floor, is used for vibration damping simultaneously as Fig. 1, and the vibration of decay car body reduces internal car noise.
As shown in Figure 1, the two length of metal support beam 1 and beams of metal 2 is identical, is arranged in regularly in hull bottom plate and the car between the floor along the segmentation of length over ends of body direction.Selecting the two length identical, is in order to guarantee the bulk strength of shock absorber, to help the rigidity according to load in the car and wheel track vibration regularity calculating shock absorber simultaneously.
This shock absorber comprises that elongated metal support beam 1, a section roughly is inverted U-shaped beams of metal 2, have auxiliary hole 7 on the metal support beam 1, captive joint with hull bottom plate by fasteners such as bolts, captive joint with the mode of screw tapping by floor in car between the floor in beams of metal 2 and the car.
The preferred aluminium section bar of the material of metal support beam 1, the material of beams of metal 2 is preferably aluminium section bar, like this, can guarantee the support strength on floor in metal support beam 1 and 2 pairs of cars of beams of metal on the one hand, can also effectively reduce simultaneously the tare of rolling stock, satisfy the more and more higher requirement of rolling stock running velocity.
Both sides at the aluminium section bar top of metal support beam 1 have the flange 3 that protrudes upward, and are integral structure by vibration isolation rubber 4 sulfurations between the outside of flange 3 and beams of metal 2 dual-sides 6, and manufacturing cost is relatively low, and technology is simple.Be subjected to the restriction of sulfuration process, the length specification of this shock absorber has certain requirement, can select suitable length according to the requirement of load in the compartment, satisfies the operating needs of rolling stock.
In the present embodiment, have an angle between the vertical line of centers 5 of the side 6 of beams of metal 2 and this shock absorber, angle is preferably the 5-30 degree, needs to determine best angle through strict calculating.The vibration isolation rubber 4 of this structural vibration reduction device bears the dual load of compressive deformation and shear deformation, can give full play to the ability of rubber, and structure is reliable.In addition, increase along with load, the part that vibration isolation rubber 4 is out of shape by compression also can increase thereupon, the lateral stiffness of vibration isolation rubber 4 also increases thereupon, because the flange 3 of metal support beam 1 and the restriction of the side 6 of beams of metal 2, the lateral deformation of vibration isolation rubber 4 is limited in the small range, this shock absorber lateral stiffness is bigger, but lateral deformation is very little, can satisfy high-speed railway vehicle to the heavy less requirement of lateral deformation under deformation condition of floor shock absorber, under the same load condition, the lateral deformation of vibration isolation rubber 4 is more little, can guarantee the horizontal stationarity in the car more.
In addition, the angle that has an angle between the vertical line of centers 5 of the side 6 of beams of metal 2 and this shock absorber is big more, shock absorber when carrying suffered compressive deformation just many more, under the same load condition, the vertical distortion of shock absorber is more little; The angle of angle is more little, and shock absorber is just many more in the suffered shear deformation of when carrying, and under the same load condition, the vertical distortion of shock absorber is big more.
In rolling stock, the rolling stocks such as motor train unit of especially present high speed development, its device space is very limited, in hull bottom plate and car, need to arrange more pipeline between the floor, as the supply and exhaust pipeline of air-conditioning, water supply and sewage pipe or the like, this shock absorber can be provided with flexibly according to the pipe line arrangement situation between the floor in hull bottom plate and the car.
After this shock absorber is installed, floor and hull bottom plate form complete integral structure in the car, and the oad of middle sulfuration vibration isolation rubber 4 can be checked and test through calculating, guarantee the effectively interior floor of supported cart of its intensity, and the vibration amplitude that can effective attenuation comes from equipment under car body, the car guarantees car in-to-in stationarity and traveling comfort.
According to the distribution situation of load in the car and the rule of body oscillating, can calculate this shock absorber optimum length size, vibration isolation rubber 4 oad and the position is set, wherein, the rigidity of shock absorber can be calculated by the aviation value of load capacity in the car, and further calculates the length of shock absorber and the oad of vibration isolation rubber 4 by the rigidity value of shock absorber.By what select shock absorber position and oad be set, can further regulate the vibration transfer function of shock absorber, make the rigidity and the oscillation frequency of this shock absorber meet vehicle wheel track transmission of vibration attenuation law fully, guarantee the effectiveness in vibration suppression of whole floor system, satisfy the operating needs of high-speed railway vehicle.
As mentioned above, given in conjunction with the accompanying drawings and embodiments scheme content can derive the similar techniques scheme.In every case be the content that does not break away from technical solutions of the utility model, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of technical solutions of the utility model according to technical spirit of the present utility model.

Claims (6)

1. high-speed railway vehicle floating floor shock absorber, it is characterized in that: this shock absorber is arranged along the segmentation of length over ends of body direction, it comprises that a metal support beam (1), section roughly are inverted U-shaped beams of metal (2), described metal support beam (1) is captiveed joint with hull bottom plate, described beams of metal (2) is captiveed joint with floor in the car, is integral structure by vibration isolation rubber (4) sulfuration between the flange (3) of described metal support beam (1) both sides, top and the dual-side (6) of described beams of metal (2).
2. high-speed railway vehicle floating floor shock absorber according to claim 1 is characterized in that: the material of described metal support beam (1) is an aluminium section bar.
3. high-speed railway vehicle floating floor shock absorber according to claim 1 is characterized in that: the material of described beams of metal (2) is an aluminium section bar.
4. high-speed railway vehicle floating floor shock absorber according to claim 1 is characterized in that: described metal support beam (1) is identical with the length of beams of metal (2).
5. according to each described high-speed railway vehicle floating floor shock absorber of claim 1 to 4, it is characterized in that: have an angle between the side (6) of described beams of metal (2) and the vertical line of centers of this shock absorber (5).
6. high-speed railway vehicle floating floor shock absorber according to claim 5 is characterized in that: described angle is the 5-30 degree.
CN2009201700528U 2009-08-11 2009-08-11 High-speed railway vehicle floating floor vibration damper Expired - Lifetime CN201472389U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201700528U CN201472389U (en) 2009-08-11 2009-08-11 High-speed railway vehicle floating floor vibration damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201700528U CN201472389U (en) 2009-08-11 2009-08-11 High-speed railway vehicle floating floor vibration damper

Publications (1)

Publication Number Publication Date
CN201472389U true CN201472389U (en) 2010-05-19

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Family Applications (1)

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CN2009201700528U Expired - Lifetime CN201472389U (en) 2009-08-11 2009-08-11 High-speed railway vehicle floating floor vibration damper

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268422A (en) * 2018-10-15 2019-01-25 同济大学 A kind of vibration absorbing structure for equipment under railway vehicle truck
CN109398390A (en) * 2018-09-13 2019-03-01 中车唐山机车车辆有限公司 The installation method of high-speed EMUs modular floor and modular floor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109398390A (en) * 2018-09-13 2019-03-01 中车唐山机车车辆有限公司 The installation method of high-speed EMUs modular floor and modular floor
CN109268422A (en) * 2018-10-15 2019-01-25 同济大学 A kind of vibration absorbing structure for equipment under railway vehicle truck
CN109268422B (en) * 2018-10-15 2020-01-31 同济大学 shock absorbing structure for equipment under railway vehicle

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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
CP01 Change in the name or title of a patent holder

Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88

Patentee after: CRRC QINGDAO SIFANG CO., LTD.

Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88

Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100519