CN104675895B - Volute spring rubber bodies upper surface and the method and product for preventing fold and cracking - Google Patents
Volute spring rubber bodies upper surface and the method and product for preventing fold and cracking Download PDFInfo
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- CN104675895B CN104675895B CN201510115752.7A CN201510115752A CN104675895B CN 104675895 B CN104675895 B CN 104675895B CN 201510115752 A CN201510115752 A CN 201510115752A CN 104675895 B CN104675895 B CN 104675895B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/38—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type
- F16F1/393—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin, i.e. bushing-type with spherical or conical sleeves
- F16F1/3935—Conical sleeves
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- 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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Springs (AREA)
Abstract
A kind of volute spring rubber bodies upper surface and the method for preventing fold and cracking, including inner cone, rubber bodies and Outer Taper, rubber bodies are looped around the periphery of inner cone, Outer Taper is looped around the periphery of rubber bodies, and rubber bodies form the rubber metal spring of a tapered arrangement together with inner cone and Outer Taper；Rubber bodies upper surface is connected with the inner cone and Outer Taper of volute spring respectively, and rubber bodies from Outer Taper junction to rubber bodies inner cone be progressively downward trend trend；Characterized in that, rubber bodies upper surface is multistage descending combination shape face structure, is combined by the annular end face of multistage different shape, slope and length and form overall rubber bodies upper surface.The adjustment of volute spring variation rigidity is carried out by changing the shape face shape of upper surface, the multistage shape face that volute spring rubber bodies upper surface is divided into more than two sections is combined, and each section of shape face has different shapes, slope and length.
Description
Technical field
The present invention relates to the improvement of the volute spring on locomotive, and in particular to the method for the stiffness variation of regulation volute spring
And volute spring upper end surface structure, this kind of method and volute spring structure can realize the multiple variation rigidity of volute spring, and prevent
Volute spring rubber ftractures producing fold when using compression.Belong to elastic shock attenuation technical field.
Background technology
Volute spring is also known as journal box spring, refers mainly to the bullet with damping effect that the metal on locomotive is combined with rubber
Spring.Volute spring, which is mounted between rail locomotive axle box and framework, plays support, damping noise reduction, is a kind of conventional rubber
The vibration and noise reducing element of glue metal composite, on the car body of locomotive single stage suspension and secondary suspension, main function is to bear
The load of car body and framework.One is sulfided under certain temperature and pressure by adhesive using cone-shaped metal part and rubber
Overall, it is to utilize to vulcanize rubber vibration damping, Noise Reduction that it, which is acted on, and metalwork plays supporting and mounting interface.
With the development of the development of locomotive technology, particularly high ferro EMUs, urban rail, subway and low floor vehicle technology, cone
Shape spring ensures the demanding kinetics and security of locomotive in order to preferably meet, it is desirable to which volute spring vertical stiffness has change firm
Spend, and vertical stiffness can not occur and inverse S-curve phenomenon occur.It is due to existing volute spring knot that inverse S-curve, which occurs, in vertical stiffness
The rubber bodies of structure do not have strong mutual extruding, and also the boss without evagination is extruded with rubber contact, and volute spring hangs down when unloaded
It is too small to variation rigidity, and during locomotive loading, it is necessary to which the rubber part of volute spring can be provided especially under maximum vertical load
During sufficiently large vertical stiffness, existing volute spring can not provide big variation rigidity again, therefore can not realize preferable variation rigidity,
Anti- " S " phenomenon is presented in stiffness curve；Volute spring with anti-" S " curve, ratio of rigidity is larger under zero load, causes vehicle to take off
The risk of rail.In addition, locomotive may require that volute spring has suitable horizontal variation rigidity and longitudinal direction to become when accelerating, slowing down or turning
Rigidity, makes locomotive more meet demanding kinetics, there is good horizontal and vertical vibration damping, noise reduction capability.Therefore it is appropriate to increase locomotive
The number of horizontal variation rigidity and longitudinal variation rigidity, realizes multiple stiffness variation, locomotive driving can be allowed more steady, smooth.And by
In volute spring be the entirety of metal and the vulcanization of rubber, it is impossible to take apart be also inconvenient to and carry out local route repair, thus Conical Projectile
Spring is the product of lifelong freedom from repairs.With the development of locomotive technology, its fatigue load is also increasingly harsher, and fatigue behaviour is wanted
Ask increasingly tighter, the structure of current volute spring when in use, because the type face of existing structure rubber is all to use single knot
The shape face of structure, product is under vertical load, and " fold " deformation easily occurs in the rubber-type face of top and the bottom, forms stress concentration, and
The vertical load of product is undertaken by rubber completely, and stress and strain is all larger, finally because rubber fatigue causes rubber to ftracture.This
A kind of both adjustable variation rigidity is accomplished by, while occurring the volute spring of fold when can prevent from using again to meet above-mentioned requirements.
Find that following patent and the present invention have similarity by country's retrieval：
Application No. 201010285627.8, the invention of entitled " journal box spring of city railway train bogie ", this
Invention is a kind of journal box spring of city railway train bogie.Spacer I, spacer are disposed with mandrel outer ring from inside to outside
II and overcoat.Mandrel, spacer I, spacer II and overcoat are made by full category material, are respectively arranged between adjacent two metal material
Rubber layer III, rubber layer II and rubber layer I.Described mandrel, spacer I, spacer II, overcoat exposed metal surface scribble bottom
Lacquer painting paint.The advantage of this invention there is provided when a kind of train wheel is run in vertical, transverse direction, longitudinal static rigidity very little, energy
Improve the flexibility and the journal box spring of the city railway train bogie of quality when vehicle is run.
Because the invention of Application No. 201010285627.8 does not increase considerably axle box bullet under maximum vertical load
The structure of the vertical stiffness of the rubber part of spring, therefore increase rigidity mainly by metal parts under big vertical load, this
Sample influences whether the effectiveness in vibration suppression of journal box spring.
A kind of Application No. 201420467799.0, the practicality of entitled " railway heavy-duty freight car bogie axle box " is new
Type, this utility model discloses a kind of railway heavy-duty freight car bogie journal box spring.The purpose of this utility model is to provide one
Railway heavy-duty freight car bogie journal box spring is planted, to overcome the shortcomings of existing journal box spring radial rigidity is excessive, weight is heavy.This
Utility model includes overcoat, inner sleeve, inner core, the first rubber layer and the second rubber layer, it is characterised in that：First rubber layer,
Second rubber layer vulcanizes integral with overcoat, inner sleeve and inner core, and overcoat is by being built in the first rubber layer, the second rubber layer table
The copper conductor in face is connected with inner core, between the first rubber layer, the side extended line of the second rubber layer and journal box spring top planes
Angle be 100-160 °.This utility model is mainly used as the journal box spring on railway heavy-duty freight car bogie.But the practicality
New patent does not allow journal box spring to realize the structures of multiple variation rigidities, it is difficult to meet locomotive needed for different conditions it is multiple just
Degree change.
Therefore, up to the present not yet having can effectively prevent that volute spring from preventing that rubber bodies fold from ftractureing in variation rigidity,
And method and device of the locomotive in the multiple stiffness variation needed for different conditions can be met, therefore necessary this is further added
To improve.
The content of the invention
The technical problem to be solved in the present invention is：
1. changing overall vertically changing rigidity there is inverse S-curve phenomenon；
2. during realizing locomotive from zero load to maximum vertical load, the shape of the rubber bodies upper surface of volute spring is all
Can be smoothly without fold, to prevent that the rubber part of volute spring from ftractureing；
3. realizing locomotive when accelerating, slowing down or turning, volute spring can carry out multiple stiffness variation, allow locomotive operation
It is more steady, smooth.
Pin is with above mentioned problem, and technical scheme proposed by the present invention is：A kind of volute spring rubber bodies upper surface, including inner cone
Body, rubber bodies and Outer Taper, rubber bodies are looped around the periphery of inner cone, and Outer Taper is looped around the periphery of rubber bodies, rubber bodies with
Inner cone and Outer Taper form the rubber metal spring of a tapered arrangement together；Rubber bodies upper surface respectively with volute spring
Inner cone and Outer Taper connection, and rubber bodies from Outer Taper junction to being that progressively downward trend is walked with rubber bodies inner cone
To；Its feature is that rubber bodies upper surface is multistage descending combination shape face structure, by multistage different shape, slope and length
Annular end face combines to form overall rubber bodies upper surface.
Further, in the multistage descending combination shape face structure of the rubber bodies upper surface, every section of shape be straight line or
Arc shape, and will be connected between every two sections by arc section transition, in the upper end folding process to ensure rubber bodies, rubber
The shape of colloid upper end remains smooth, will not produce fold and cracking.
Further, the multistage descending combination is more than two sections of straightway combination, and between straightway and straightway
By fillet section transition, each straightway has different slope and length, in the upper end folding process to ensure rubber bodies, rubber
The shape of colloid upper end remains smooth, will not produce fold and cracking.
Further, the multistage descending combination is three sections of straightway combinations, wherein, the length of first straight line section is 18-
22mm, first straight line section and the angle of axis are 14-17 degree；The length of second straight line section is 44-47mm, first straight line section and axle
The angle of line is 20-23 degree；The length of 3rd straightway is 14-16mm, and first straight line section and the angle of axis are 11-15 degree.
Further, the radius of corner of two sections of annular radiused corners section 22 of the upper surface of the rubber bodies is all 4-8mm.
It is a kind of to utilize the volute spring variation rigidity of above-mentioned volute spring rubber bodies upper surface and prevent upper surface fold cracking
Method, the adjustment of volute spring variation rigidity is carried out by changing the shape face shape of upper surface, by volute spring rubber bodies
End face is divided into more than two sections of multistage shape face combination, and each section of shape face has different shapes, slope and length, by adjusting
Different shape, slope and the length in whole each section of shape face adjusts the position of the size and stiffness variation of the stiffness variation of volute spring
Put, and the adjustment of multiple variation rigidity is realized by controlling the quantity of multistage.
Further, in the multistage shape face combination of the rubber bodies upper surface, every section of shape is straight line or arc shape,
And will be connected between every two sections by arc section transition, in the upper end folding process to ensure rubber bodies, rubber bodies upper end
Shape remain smooth, fold and cracking will not be produced.
Further, the multistage shape face combination is more than two sections of straightway combination, and between straightway and straightway
By fillet section transition, each straightway has different slope and length, in the upper end folding process to ensure rubber bodies, rubber
The shape of colloid upper end remains smooth, will not produce fold and cracking.
Further, the multistage shape face is downward multistage descending structure from Outer Taper to inner cone, wherein, first is straight
The length of line segment is 18-22mm, and first straight line section and the angle of volute spring axis are 14-17 degree；The length of second straight line section
For 44-47mm, first straight line section and the angle of volute spring axis are 20-23 degree；The length of 3rd straightway is 14-16mm,
The angle of 3rd straightway and volute spring axis is 11-15 degree.
It is an advantage of the invention that：
1. the upper surface of rubber bodies is multistage combination shape face, and can be realized using annular radiused corners section transition between every two sections
The smooth variation of multiple vertical stiffness, is not in the phenomenon that the vertical stiffness of volute spring increases suddenly, is avoided that vertical firm
There is inverse S-curve in degree, so as to effectively prevent that locomotive from derailing, while can also allow the volute spring to have good damping, noise reduction.
2. the upper end of rubber bodies uses the deformation shape face structure more than more than two sections, and annular radiused corners are used between every two sections
Section transition, and by the slope of each section of Reasonable adjustment, length, can effectively prevent that rubber bodies from bearing under load, the upper end of rubber bodies
During shifting, rubber bodies upper end shape remains smooth, so as to prevent that rubber bodies upper end from ftractureing.
3. the upper surface of rubber bodies, which is used, used between the combination shape face of multistage, every two sections annular radiused corners section transition, therefore
Rubber physical efficiency realizes the change of multiple lateral stiffness and longitudinal rigidity, and the change of lateral stiffness and longitudinal rigidity can be allowed relatively to put down
It is slow, be not in the unexpected increase of lateral stiffness and longitudinal rigidity, so that locomotive is when accelerating, slowing down or turning, more
Steadily, it is smooth, the comfort of in-car passenger can be increased.
4. volute spring can by change each section of length, slope and hop count adjust volute spring it is vertical, laterally and
Longitudinal variation rigidity enable volute spring meet the locomotive of different model under different conditions to rigidity the need for, enable locomotive more preferably
Meet demanding kinetics, so as to allow locomotive preferably to run.Meanwhile, also allow the versatility of volute spring stronger, application
It is wider, it can be applied on various kinds of vehicles.
5. volute spring energy crack resistence, long service life；It is simple in construction, low cost, it is adaptable to produce in batches.
Brief description of the drawings
Fig. 1 is schematic cross-sectional view of the invention；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is schematic perspective view of the invention；
Schematic cross-sectional views of the Fig. 4 for the present invention under maximum vertical load；
Fig. 5 is the enlarged drawing at C in Fig. 4；
Fig. 6 is vertical stiffness curve of the invention；
Fig. 7 is the schematic cross-sectional view before present invention improvement；
Schematic cross-sectional views of the Fig. 8 before being improved for the present invention under maximum vertical load；
Fig. 9 is the vertical stiffness curve before present invention improvement；
In figure：1 inner cone, 11 inner cone boss, 2 rubber bodies, 21 annular flat segments, 211 first annular flat segments, 212
Second annular flat segments, 213 the 3rd annular flat segments, 22 annular radiused corners section, 3 Outer Tapers.
Embodiment
The description of a step is done to the present invention with reference to embodiment and accompanying drawing：
Embodiment one
As shown in Fig. 1-3, a kind of volute spring, including inner cone 1, rubber bodies 2 and Outer Taper 3, the lower end of inner cone 1 to
Outside extends the inner cone boss 11 to form annular.The upper surface 21 of rubber bodies 2 is three sections of multistage descending structure, respectively the
Used between the one annular flat segments 213 of the annular annular flat segments 212 and the 3rd of flat segments 211, second, every two sections annular flat segments
Annular radiused corners 22 transition of section.In the present embodiment, the radius of corner of two sections of annular radiused corners section 22 of the upper surface of rubber bodies 2 is all
4-8mm.Rubber bodies 2 are looped around the periphery of inner cone 1, and Outer Taper 3 is looped around the periphery of rubber bodies 2.Inner cone 1 and Outer Taper 3
For metal parts, inner cone 1 and Outer Taper 3 are sulfided into one by adhesive under certain temperature and pressure with rubber bodies 2
Overall, its effect is：Play the work of vibration and noise reducing, 3 supports of inner cone 1 and Outer Taper and mounting interface using rubber bodies 2
With.
In order to avoid fold and cracking occurs in the upper end of rubber bodies 2, the structure that the present embodiment is used is as depicted in figs. 1 and 2.Rubber
The upper surface of colloid 2 is by the annular flat segments 213 of the annular flat segments the 212, the 3rd of first annular flat segments 211, second and two sections
Annular radiused corners section 22 forms an entirety.Annular radiused corners are used between the first annular annular flat segments 212 of flat segments 211 and second
Also using annular radiused corners 22 transition of section between 22 transition of section, the second annular annular flat segments 213 of flat segments 212 and the 3rd.Rubber
During body 2 is moved down by vertical load, because the outside of rubber bodies 2 is connected with the inner side of Outer Taper 3, the upper end of rubber bodies 2
With outside it is mobile can by Outer Taper 3 constraint.It can be seen that, during rubber bodies 2 are moved down by vertical load, rubber
The change in shape of the upper end of body 2 can by each section of annular flat segments 21 slope, in length and Outer Taper 3 sidelead etc. it is multiple because
The influence of element.
Each section of annular flat segments of the upper surface of rubber bodies 2 in the present embodiment are given as shown in the form of lower section, in form
With the angle in vertical direction and the length of each section of annular flat segments.
| Annular flat segments and the angle (degree) in vertical direction | The length of annular flat segments（Millimeter） | |
| First annular flat segments | 14-17 (b in figure) | 18-22 |
| Second annular flat segments | 44-47 (a in figure) | 20-23 |
| 3rd annular flat segments | 16-21 (c in figure) | 11-15 |
As depicted in figs. 1 and 2, when volute spring is by the downward pressure of vertical load, rubber bodies 2 are moved down, rubber
The shape of the upper end of colloid 2 can change.Due to the annular flat segments 212 of first annular flat segments 211, second, the 3rd annular flat
The radius of corner of slope and length and annular radiused corners section 22 in straight section 213 is designed to rationally, therefore rubber bodies 2 are moved down
During, the shape of the upper end of rubber bodies 2 can remain smooth.It is avoided that the upper end of rubber bodies 2 produces fold, therefore can prevents
Ftracture the upper end of rubber bodies 2.When volute spring is by the downward pressure of maximum vertical load, the shape meeting of the upper end of rubber bodies 2
Show such as the smooth-shaped in Fig. 4 at C, also can be found in shown in Fig. 5.
It is an advantage of the invention that：
Rigidity requirement due to locomotive in different situations to volute spring is different.When locomotive is in zero load,
It is required that the rigidity of volute spring can not be too big, and elasticity will get well, and the elasticity seeks to well the load when locomotive to volute spring
Pressure when increasing suddenly, the rigidity of volute spring can play good damping effect without unexpected increase.But add in locomotive
After load, especially under maximum load, require that the rigidity of volute spring is very big again, and to have preferable elasticity.This is accomplished by
Volute spring can have good variation rigidity to meet the rigidity requirement of locomotive in all cases.
As Figure 7-8, current volute spring is due to the structure without annular flat segments and annular radiused corners section 22, so not
Multiple variation rigidity can be realized.The vertical stiffness curve of current volute spring as shown in figure 9, there is two vertical stiffness curves in figure,
Wherein above is vertical stiffness curve of the locomotive in loading, and underlying is vertical stiffness of the locomotive in unloading
Curve.And according to the different model of locomotive when unloaded at present, each volute spring about bears 14KN-18KN vertical load, from
It can be seen that 14KN-18KN is the inverse S-curve part in volute spring vertical stiffness in Fig. 9.The characteristics of inverse S-curve is,
The distance that rubber bodies 2 are moved down is little, but its rigidity increases quickly, and such rigidity increase mode is unfavorable for locomotive
Damping, there is the risk for causing locomotive to derail.
As shown in Figure 1, Figure 2 with shown in Fig. 5, three sections of the upper surface of rubber bodies 2 annular flat segments 21 and two sections of rings in the present embodiment
Shape fillet section 22, can make volute spring have vertical twice, horizontal and vertical variation rigidity.The volute spring of the present embodiment it is vertical just
Line write music as shown in fig. 6, there are two vertical stiffness curves in figure, wherein above is vertical stiffness of the locomotive in loading
Curve, underlying is vertical stiffness curve of the locomotive in unloading.Due to there is vertically changing rigidity twice in the present embodiment
Structure, therefore when the downward pressure of the vertical load that volute spring is increased suddenly, the distance that rubber bodies 2 are moved down
It is larger, buffering, damping effect well can be played.It will be seen from figure 6 that it is vertical that volute spring has been eliminated in the present embodiment
The inverse S-curve of rigidity.Similarly, when locomotive is accelerating, slowing down or turned due to three sections of annular flat segments of the upper end of rubber bodies 2
21 and the structure of two sections of annular radiused corners section 22 so that volute spring also has variation rigidity twice horizontal and vertical, can play very well
Horizontal and vertical buffering and damping effect so that locomotive is when accelerating, slowing down or turning, more steadily, smooth, energy
The comfort of the in-car passenger of increase.
Embodiment two
Structure with embodiment one is roughly the same, but the use of the upper surface of rubber bodies 2 is not gentle straight line transition, and
Gentle curved side carries out transition, and the upper ends of rubber bodies 2 is four sections of annular flat segments 21 and three sections of annular radiused corners sections 22, and rubber
The lower end of body 2 is three sections of annular flat segments 21 and two sections of annular radiused corners sections 22.So changing the hop count of annular flat segments 21 can change
Become the number of times of volute spring variation rigidity, that is to say, that volute spring can be changed by adjusting the hop count of annular flat segments 21
The number of times of variation rigidity.The hop count for increasing or decreasing annular flat segments 21 is remained to so that volute spring is from zero load to maximum vertical load
During, the top and bottom shape of rubber bodies 2 all occurs without fold, can remain smooth shape.
By above-described embodiment it can also be seen that the present invention relates to a kind of volute spring of volute spring rubber bodies upper surface
Variation rigidity and the method for preventing upper surface fold cracking, volute spring variation rigidity is carried out by changing the shape face shape of upper surface
Adjustment, by volute spring rubber bodies upper surface be divided into more than two sections multistage shape face combine, and each section shape face have not
Same shape, slope and length, the firm of volute spring is adjusted by adjusting different shape, slope and the length in each section of shape face
The size of change and the position of stiffness variation are spent, and the adjustment of multiple variation rigidity is realized by controlling the quantity of multistage.
Further, in the multistage shape face combination of the rubber bodies upper surface, every section of shape is straight line or arc shape,
And will be connected between every two sections by arc section transition, in the upper end folding process to ensure rubber bodies, rubber bodies upper end
Shape remain smooth, fold and cracking will not be produced.
Further, the multistage shape face combination is more than two sections of straightway combination, and between straightway and straightway
By fillet section transition, each straightway has different slope and length, in the upper end folding process to ensure rubber bodies, rubber
The shape of colloid upper end remains smooth, will not produce fold and cracking.
Further, the multistage shape face is downward multistage descending structure from Outer Taper to inner cone, wherein, first is straight
The length of line segment is 18-22mm, and first straight line section and the angle of volute spring axis are 14-17 degree；The length of second straight line section
For 44-47mm, first straight line section and the angle of volute spring axis are 20-23 degree；The length of 3rd straightway is 14-16mm,
The angle of 3rd straightway and volute spring axis is 11-15 degree.
It will be apparent that on the premise of principle of the present invention is not departed from, some improvement or modification made are regarded as this
The protection domain of invention.
Claims (6)
1. a kind of volute spring rubber bodies upper surface, volute spring includes inner cone, rubber bodies and Outer Taper, rubber bodies are looped around
The periphery of inner cone, Outer Taper is looped around the periphery of rubber bodies, and rubber bodies form a taper together with inner cone and Outer Taper
The rubber metal spring of arrangement；Rubber bodies upper surface is connected with the inner cone and Outer Taper of volute spring respectively, and rubber bodies from
With Outer Taper junction to rubber bodies inner cone be progressively downward trend trend；Characterized in that, rubber bodies upper surface is many
Section descending combination shape face structure, is combined by the annular end face of multistage different shape, slope and length and forms overall rubber bodies upper end
Face；In the multistage descending combination shape face structure of the rubber bodies upper surface, every section of shape is straight line or arc shape, and will be every
Connected between two sections by arc section transition, in the upper surface folding process to ensure rubber bodies, rubber bodies upper surface
Shape remains smooth, will not produce fold and cracking.
2. volute spring rubber bodies upper surface according to claim 1, it is characterised in that the multistage descending combination is three
Section straightway combination, wherein, the length of first straight line section is 18-22mm, and first straight line section and the angle of axis are 14-17 degree；
The length of second straight line section is 44-47mm, and second straight line section and the angle of axis are 20-23 degree；The length of 3rd straightway is
The angle of 14-16mm, the 3rd straightway and axis is 11-15 degree.
3. volute spring rubber bodies upper surface according to claim 1, it is characterised in that the upper surface of the rubber bodies
The radius of corner of two sections of annular radiused corners sections is all 4-8mm.
4. the volute spring variation rigidity of volute spring rubber bodies upper surface described in a kind of utilization claim 1 and prevent upper surface pleat
Wrinkle and cracking method, it is characterised in that carry out the adjustment of volute spring variation rigidity by changing the shape face shape of upper surface, will
Volute spring rubber bodies upper surface is divided into more than two sections of multistage shape face combination, and each section of shape face have different shapes,
Slope and length, the stiffness variation of volute spring is adjusted by adjusting different shape, slope and the length in each section of shape face
The position of size and stiffness variation, and realize the adjustment of multiple variation rigidity by controlling the quantity of multistage；The rubber bodies upper end
In the multistage shape face combination in face, every section of shape is straight line or arc shape, and will be connected between every two sections by arc section transition
Pick up and, in the upper end folding process to ensure rubber bodies, the shape of rubber bodies upper end remains smooth, will not produce fold
And cracking.
5. volute spring variation rigidity according to claim 4 and prevent upper surface fold and cracking method, it is characterised in that
Multistage shape face combination is more than two sections of straightway combination, and by fillet section transition between straightway and straightway, often
One straightway has different slope and length, in the upper end folding process to ensure rubber bodies, and the shape of rubber bodies upper end begins
Keep smooth eventually, fold and cracking will not be produced.
6. volute spring variation rigidity according to claim 5 and prevent upper surface fold and cracking method, it is characterised in that
The multistage shape face is downward multistage descending structure from Outer Taper to inner cone, wherein, the length of first straight line section is 18-
22mm, first straight line section and the angle of volute spring axis are 14-17 degree；The length of second straight line section is 44-47mm, and second is straight
The angle of line segment and volute spring axis is 20-23 degree；The length of 3rd straightway is 14-16mm, the 3rd straightway and taper
The angle of axle of spring is 11-15 degree.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510115752.7A CN104675895B (en) | 2015-03-17 | 2015-03-17 | Volute spring rubber bodies upper surface and the method and product for preventing fold and cracking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115752.7A CN104675895B (en) | 2015-03-17 | 2015-03-17 | Volute spring rubber bodies upper surface and the method and product for preventing fold and cracking |
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| CN104675895B true CN104675895B (en) | 2017-07-18 |
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| CN106949181A (en) * | 2017-05-05 | 2017-07-14 | 株洲时代新材料科技股份有限公司 | A kind of volute spring and oscillation damping method of use horn mouth formula dividing plate |
| CN110285172B (en) * | 2019-07-05 | 2022-01-28 | 株洲时代瑞唯减振装备有限公司 | Method for preventing conical spring rubber profile from wrinkling and realizing variable stiffness and conical spring |
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|---|---|---|---|---|
| CN201326677Y (en) * | 2008-12-30 | 2009-10-14 | 青岛四方车辆研究所有限公司 | Large curved capsule air spring of bottom air intake |
| CN102401084A (en) * | 2010-09-15 | 2012-04-04 | 溧阳市振大铁路设备有限公司 | Shaft box spring of bogie of urban rail train |
| CN204099478U (en) * | 2014-09-01 | 2015-01-14 | 青岛思锐科技有限公司 | High and cold rail motor set pneumatic spring |
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2015
- 2015-03-17 CN CN201510115752.7A patent/CN104675895B/en active Active
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| CN104675895A (en) | 2015-06-03 |
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Effective date of registration: 20200602 Address after: 412007 No.301, physical and chemical building, Liyu Industrial Park, no.639, Heilongjiang Road, Tianyuan District, Zhuzhou City, Hunan Province Patentee after: Zhuzhou Times Ruiwei damping equipment Co., Ltd Address before: 412007 No. 18 Haitian Road, Tianyuan District, Hunan, Zhuzhou Patentee before: Zhuzhou Times New Material Technology Co.,Ltd. |