CN201472396U

CN201472396U - Floating building floor vibration damper for trains

Info

Publication number: CN201472396U
Application number: CN2009201708820U
Authority: CN
Inventors: 赵锦峰; 孙召进; 徐宏伟
Original assignee: CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2009-08-10
Filing date: 2009-08-10
Publication date: 2010-05-19
Anticipated expiration: 2019-08-10

Abstract

The utility model relates to a floating building floor vibration damper for trains, which comprises a metal framework, vibration damping rubber and a metal beam, wherein the metal framework and the vibration damping rubber are vulcanized into an integral structure, the upper part of the vibration damping rubber is provided with an assembling notch, the assembling notch is fixedly matched and connected with the metal beam, the metal framework is fixedly connected with a train body, and the metal beam is fixedly connected with the floor in the train. The metal framework is approximately in a U shape, both side edges of the metal framework are embedded inside the vibration damping rubber, and at least two holes are formed on the vibration damping rubber. The vibration damper can effectively relieve the train vibration, reduce the noise in the train, and improve the train comfort degree. At the same time, the vibration damper can be arranged in sections, the proper length and the arrangement position can be selected according to the pipeline distraction conditions between the train body and the floor in the train, the load in the train and the train body vibration rules, so the floating building floor vibration damper for trains conforms to the wheel rail vibration transmission rules during high-speed operation of the train, and the use requirements of the train can be met.

Description

Train 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 train floating floor belongs to the rolling stock equipment technical field.

Background technology

At existing vehicle, especially on the 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 track vehicle, also just more and more higher to the requirement of Vehicle damper noise reduction and comfort level,

For vehicle, vibration that its operation the time is produced and noise are to pass to floor in the compartment by support beam, to making the floor produce vibration, thereby radiated noise in car, train is when high-speed cruising, and its vibration and noise all can obviously aggravate, and the coupling situation is also more complicated, 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 the vehicle of high-speed cruising, 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 train requirement to vibration and noise reducing when high-speed cruising.

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 train floating floor shock absorber of relation simultaneously.

For achieving the above object, the technical solution of the utility model is:

A kind of train floating floor shock absorber, comprise metallic framework, vibration isolation rubber, beams of metal, wherein said metallic framework and vibration isolation rubber are sulfided into integrative-structure, the top of described vibration isolation rubber is provided with the assembling notch, described assembling notch cooperates affixed with beams of metal, described metallic framework is captiveed joint with car body, and described beams of metal is captiveed joint with floor in the car.

The utility model further improves and is that described metallic framework roughly takes the shape of the letter U, and its dual-side is embedded in vibration isolation rubber inside, and described vibration isolation rubber is provided with at least two holes.

The material of described beams of metal is an aluminium section bar, and the material of described metallic framework is aluminium sheet or stainless steel sheet.

The utility model further improves and is, described beams of metal, metallic framework, vibration isolation rubber are elongated structure, and three's length is identical.

Perhaps, described beams of metal is an elongated structure, and described metallic framework is identical with vibration isolation rubber length, and is the below that point-like is arranged on beams of metal.

Content to sum up, train floating floor shock absorber provided by the utility model forms an integral structure after installation, and the damping capacity by rubber plays damping of vibrations, guarantees the effective attenuation body oscillating, reduces internal car noise, improves 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 vehicle when high-speed cruising, satisfy the vehicle operation requirement.

It is main that vibration isolation rubber in this damper structure bears compressive force in vertical direction, and it is main bearing shearing force at horizontal direction, can give full play to the damping capacity of rubber, and effectiveness in vibration suppression is better.

Description of drawings

Fig. 1 the utility model structural representation.

As Fig. 1 to shown in Figure 3, metallic framework 1, vibration isolation rubber 2, beams of metal 3, assembling notch 4, metallic framework side 5, hole 6.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

As shown in Figure 1, train 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, and the vibration of decay car body reduces internal car noise.

This shock absorber comprises metallic framework 1, vibration isolation rubber 2, beams of metal 3, wherein metallic framework 1 is sulfided into integrative-structure with vibration isolation rubber 2, metallic framework 1 is captiveed joint by fasteners such as bolts with hull bottom plate, and beams of metal 3 is fixed together with the mode of the interior floor of car by the screw tapping.

This shock absorber can have following two kinds of versions:

Embodiment one, metallic framework 1, vibration isolation rubber 2, beams of metal 3 are elongated structure, and three's length is identical, be arranged in regularly in hull bottom plate and the car between the floor along the segmentation of length over ends of body direction, select three's length identical, be in order to guarantee the bulk strength of shock absorber, to help rigidity simultaneously according to load in the car and wheel track vibration regularity calculating shock absorber.

Embodiment two, beams of metal 3 is elongated structure, metallic framework 1 is identical with vibration isolation rubber 2 length, but be smaller than the length of beams of metal 3, be the below that point-like is arranged on beams of metal 3, general, two places such metallic framework 1 is set in the below of each beams of metal 3 and vibration isolation rubber 2 sulfurations are the structure of one, be arranged in regularly in hull bottom plate and the car between the floor along the segmentation of length over ends of body direction, not only can satisfy the requirement of its integral installation intensity, can also effectively reduce the tare of vehicle.

In above-mentioned two embodiment, metallic framework 1 roughly takes the shape of the letter U, its dual-side 5 is embedded in vibration isolation rubber 2 inside, like this, not only can increase the area of contact of vibration isolation rubber 2 and metallic framework 1, improve the global reliability of this shock absorber, also have better supporting role, prevent that this shock absorber from producing bigger distortion or damage under the effect of excessive or improper load.

Be provided with assembling notch 4 on the top of vibration isolation rubber 2, beams of metal 3 snaps in the assembling notch 4, installs more convenient flexibly, more firm in order to fix, will bond together mutually between beams of metal 3 and the vibration isolation rubber 2.

Vibration isolation rubber 2 is provided with at least two holes 6, as shown in Figure 1, three holes 6 preferably are set in the present embodiment, the section form in three holes 6 can be circle, oval, Long Circle etc., position by three holes 6, shape and size, can further regulate the rigidity of this shock absorber, satisfy different stiffness characteristics requirements, if the rigidity of vibration isolation rubber 2 is too big, then the effectiveness in vibration suppression of shock absorber is just relatively poor relatively, like this can be by adding the size of macropore 6, or change the shape in hole 6, to reduce the rigidity of vibration isolation rubber 2, the optimum shape in hole 6 is circular, and this moment, the material stress of vibration isolation rubber 2 was the most even, simultaneously, the distance in three holes 6 is just big more with the rate of change that load increases the closer to, the rigidity of shock absorber.

In the vehicle operating process, this vibration isolation rubber 2 is the main compressive deformation that produces on vertical direction, mainly produces shear deformation in a lateral direction, can give full play to the ability of rubber like this, satisfies the vibration damping requirement of hot-short.

The material of beams of metal 3 is preferably aluminium section bar, the material of metallic framework 1 can adopt aluminium sheet or stainless steel sheet, wherein preferred aluminium sheet, can guarantee the support strength on floor in

metallic framework

1 and 3 pairs of cars of beams of metal on the one hand, can also effectively reduce simultaneously the tare of vehicle, satisfy the more and more higher requirement of running velocity.

In vehicle, especially at present in the rolling stocks such as motor train unit of 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, the oad of shock absorber 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 2 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 2 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 track 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

1. train floating floor shock absorber, it is characterized in that: comprise metallic framework (1), vibration isolation rubber (2), beams of metal (3), wherein said metallic framework (1) is sulfided into integrative-structure with vibration isolation rubber (2), the top of described vibration isolation rubber (2) is provided with assembling notch (4), described assembling notch (4) cooperates affixed with beams of metal (3), described metallic framework (1) is captiveed joint with car body, and described beams of metal (3) is captiveed joint with floor in the car.

2. train floating floor shock absorber according to claim 1 is characterized in that: described metallic framework (1) roughly takes the shape of the letter U, and its dual-side (5) is embedded in vibration isolation rubber (2) inside.

3. train floating floor shock absorber according to claim 1 is characterized in that: described vibration isolation rubber (2) is provided with at least two holes (6).

4. train floating floor shock absorber according to claim 1 is characterized in that: the material of described beams of metal (3) is an aluminium section bar.

5. train floating floor shock absorber according to claim 1 is characterized in that: the material of described metallic framework (1) is aluminium sheet or stainless steel sheet.

6. according to each described train floating floor shock absorber of claim 1 to 5, it is characterized in that: described beams of metal (3), metallic framework (1), vibration isolation rubber (2) are elongated structure, and three's length is identical.

7. according to each described train floating floor shock absorber of claim 1 to 5, it is characterized in that: described beams of metal (3) is an elongated structure, and described metallic framework (1) is identical with vibration isolation rubber (2) length and be the below that point-like is arranged on described beams of metal (3).