CN203176240U - Hot-rolled large-wire-diameter track damper spring - Google Patents
Hot-rolled large-wire-diameter track damper spring Download PDFInfo
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- CN203176240U CN203176240U CN 201320099518 CN201320099518U CN203176240U CN 203176240 U CN203176240 U CN 203176240U CN 201320099518 CN201320099518 CN 201320099518 CN 201320099518 U CN201320099518 U CN 201320099518U CN 203176240 U CN203176240 U CN 203176240U
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Abstract
The utility model relates to a hot-rolled large-wire-diameter track damper spring which is a spiral compression spring. The wire diameter d of the spring is phi 38mm-phi 50mm, the outer diameter D of the spring is phi 152mm-phi 210mm, the height H of the spring is 137mm-400mm, and the pitch t of the spring is 50mm-60mm, wherein the pitch t is smaller than or equal to 0.45D. The spring is machined with 60Si2CrVA spring steel bars in the manner that two end rings are tightened and ground. The hot-rolled large-wire-diameter track damper spring has the advantages that the security level of the spring is improved, machining difficulty of the spring is reduced, machining quality of the spring and consistency in load performance of the spring are improved, the purpose of buffering in work of track damper springs is effectively achieved, vibration and noise during vehicle traveling are reduced, and the obvious effect of achieving conform of train passengers is achieved.
Description
Technical field
The utility model relates to track vibration-reducing class spring technical field, the big line of especially a kind of hot rolling footpath track vibration-reducing spring.
Background technique
In track traffic, will produce a certain amount of impact energy in wheel and the track contact process, the vibration and noise of generation is inevitable to the influence of surrounding environment and building.In order to reduce vibration and the noise in the vehicle running process, at present generally at track lower pad rubber, but the rubber life-span is shorter, and maintenance expenses is bigger, and effectiveness in vibration suppression is not obvious.
Fast development along with the domestic city track traffic, country advocates product energetically and adopts advanced foreign technology, realize independent research, innovation simultaneously, make the level of production of domestic track vibration-reducing device manufacturer be improved, product has reached international most advanced level.The damping spring that hot rolling is shaped mainly plays big mechanical work or kinetic energy is changed into energy of deformation, or big energy of deformation is changed into mechanical work or kinetic energy.The track vibration damping denoising device is exactly the pooling feature that utilizes the track vibration-reducing spring, is installed in to play the vibration and noise reducing effect below the track.But the damping property deficiency of the track vibration-reducing spring of existing track traffic middle orbit vibration damping equipment.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, the big line of a kind of hot rolling footpath track vibration-reducing spring is provided, effectiveness in vibration suppression is better when solving the wheel-rail impact that it is subjected to train operation.
The technological scheme that its technical problem that solves the utility model adopts is: the big line of a kind of hot rolling footpath track vibration-reducing spring, described spring is spiral compression spring, the line footpath d of described spring is Φ 38mm～Φ 50mm, the D outer diameter of described spring is Φ 152mm～Φ 210mm, the height H of described spring is 137mm～400mm, the pitch t of described spring is 50mm～60mm, described pitch t≤0.45D.
Further, described spring is processed by 60Si2CrVA spring steel bar.
Further, described spring adopts the two ends circle and tightly polishes end cast formula.
The beneficial effects of the utility model are: the big line of the hot rolling footpath track vibration-reducing spring that adopts the above-mentioned parameter design, the parameters performance of spring all satisfies NBS, and improved the safety class of spring, reduced the difficulty of processing of spring simultaneously, the quality of processing of spring and the conformity of spring-load performance have been improved, efficiently solve the buffer problem in the work of track vibration-reducing class spring, effectiveness in vibration suppression was better when it was subjected to the wheel-rail impact of train operation, vibration and noise in the vehicle running process have been reduced, for making the comfortable obvious effects that reached of train passenger.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
As shown in Figure 1, the big line of a kind of hot rolling footpath track vibration-reducing spring, spring is spiral compression spring, the line footpath d of spring is Φ 38mm～Φ 50mm, and the D outer diameter of spring is Φ 152mm～Φ 210mm, and the height H of spring is 137mm～400mm, the pitch t of spring is 50mm～60mm, pitch t≤0.45D.Spring is processed by 60Si2CrVA spring steel bar.Spring adopts the two ends circle and tightly polishes end cast formula.
The big line of hot rolling of the present utility model footpath track vibration-reducing spring, compact structure, easy to loading and unloading, good damping result, long service life, safe and reliable, need not maintenance, good environmental protection, pollution-free.The big line of hot rolling of the present utility model footpath track vibration-reducing spring reaches international hot rolling spiral compression spring technical standard, is applicable to the hot rolling big spring as class of track vibration damping equipment demand.
The utility model is in spring performance detects, and fluctuation numerical value is at ± 3%P, is higher than ± the extra fine grade control requirement of 5%P, and the vibration damping equipment pathway face mould that adopts the utility model to make is intended using, and has high damping stability, effectiveness in vibration suppression 〉=15dB; Spring fatigue life of the present utility model 〉=5,000,000 time, it only be 0.2%P that load lost efficacy, spring life grows, safe and reliable.
Each parameter designing of the big line of hot rolling of the present utility model footpath track vibration-reducing spring is tight, its free height H value and curl up the value than C, numerical value such as spring external diameter all are set in the NBS intermediate value, improved the safety class of spring, reduced the difficulty of processing of spring simultaneously, the quality of processing of spring and the conformity of spring-load performance have been improved, efficiently solve the buffer problem in the work of track vibration-reducing class spring, effectiveness in vibration suppression was better when it was subjected to the wheel-rail impact of train operation, vibration and noise in the vehicle running process have been reduced, for making the comfortable obvious effects that reached of train passenger.
The big line of hot rolling of the present utility model footpath track vibration-reducing spring is selected domestic 60Si2CrVA quality material for use; this material meets ISO 683 international material standard-requireds; international bar through cold drawn, turning, peeling, grinding or combination processing is processed through automatic production line, and adopts shielding gas to form through heating quenching, tempering.Because the processing technology maturation, the final performance index of its dimensional accuracy and product meet international hot rolling technical standard, reach the quality level of external similar spring.
Hardness fluctuations scope and the decarburized layer deepness of the big line of hot rolling of the present utility model footpath track vibration-reducing spring after quenching, tempering, improved the Safety performance of spring, spring can use in+100 ℃/-40 ℃, the working environment of relative moisture＞90%, and its fatigue behaviour more can reach 3*10
6More than inferior.
Spring is selected for use 60Si2CrVA spring steel bar to reel to wait after the shielding gas heating in stove and is processed, and steps such as the two ends circle also tightly polishes, surperficial secondary Shot peening, the processing of halting, stable tempering, environmental protection paint are formed.Injurous defects such as the layering that the nothing influence of spring surface is used, groove, processing tool marks, crackle, burning.According to different service conditions, hardness is in HRC46～49, even tissue, and crystal grain is tiny, and fatigue safety is good.Spring parameter such as boundary dimension, part throttle characteristics all meets the requirement of international hot rolling spiral compression spring technical specifications.
The big line of hot rolling of the present utility model footpath track vibration-reducing spring adopts the two ends circle and tightly polishes end cast formula, and the user can select for use spring and track vibration-reducing device to be used in combination as requested arbitrarily.
Be enlightenment with above-mentioned foundation desirable embodiment of the present utility model, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (3)
1. the big line of hot rolling footpath track vibration-reducing spring, it is characterized in that: described spring is spiral compression spring, the line footpath d of described spring is Φ 38mm～Φ 50mm, the D outer diameter of described spring is Φ 152mm～Φ 210mm, the height H of described spring is 137mm～400mm, the pitch t of described spring is 50mm～60mm, described pitch t≤0.45D.
2. the big line of hot rolling according to claim 1 footpath track vibration-reducing spring, it is characterized in that: described spring is processed by 60Si2CrVA spring steel bar.
3. the big line of hot rolling according to claim 1 footpath track vibration-reducing spring, it is characterized in that: described spring adopts the two ends circle and tightly polishes end cast formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320099518 CN203176240U (en) | 2013-03-05 | 2013-03-05 | Hot-rolled large-wire-diameter track damper spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320099518 CN203176240U (en) | 2013-03-05 | 2013-03-05 | Hot-rolled large-wire-diameter track damper spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176240U true CN203176240U (en) | 2013-09-04 |
Family
ID=49072941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320099518 Expired - Fee Related CN203176240U (en) | 2013-03-05 | 2013-03-05 | Hot-rolled large-wire-diameter track damper spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073018A (en) * | 2016-04-13 | 2018-12-21 | 新确有限公司 | Helical spring |
-
2013
- 2013-03-05 CN CN 201320099518 patent/CN203176240U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109073018A (en) * | 2016-04-13 | 2018-12-21 | 新确有限公司 | Helical spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |