CN106476835A - A kind of vertical backstop with wearing plate and the method preventing steel spring fracture - Google Patents
A kind of vertical backstop with wearing plate and the method preventing steel spring fracture Download PDFInfo
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- CN106476835A CN106476835A CN201510538169.7A CN201510538169A CN106476835A CN 106476835 A CN106476835 A CN 106476835A CN 201510538169 A CN201510538169 A CN 201510538169A CN 106476835 A CN106476835 A CN 106476835A
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Abstract
A kind of vertical backstop with wearing plate and the method preventing steel spring fracture, wearing plate is embedded in rubber bodies top, can adjust the rigidity of vertical backstop by the diameter or height adjusting wearing plate；Base is embedded in rubber body, enables base that the rubber bodies of vertical backstop are carried out spacing, the height of adjusting base can adjust the rigidity of vertical backstop；The upper end of rubber bodies is set as more than two sections of annular flat segments, adjusts the angle between annular flat segments and horizontal plane, the variation rigidity of vertical backstop can be adjusted；Reduce, by adjusting rigidity, variation rigidity and the spacing position of vertical backstop, the vertical load that steel spring bears, reduce the metal fatigue of steel spring generation during locomotive operation, thus preventing steel spring from rupturing.Vertical backstop also have firm in structure be hardly damaged, combine tight between wearing plate, rubber bodies and base, be difficult the feature loosening, departing from, and applied widely, highly versatile.
Description
Technical field
The present invention relates to a kind of buffer unit on locomotive is and in particular to a kind of vertical backstop of buffer train series hanging system.
Background technology
At present, in railway locomotive manufacture process, it is widely used spring assembly and is carried and vibration damping, as the critical component of locomotive, it has important impact to the dynamic performance of vehicle and riding quality to spring.With railway speed increase, heavily loaded implementation, the fault affecting locomotive operation performance because of spring breakage gradually increases, and the bad stability of locomotive operation causes hidden danger to traffic safety.
Steel spring directly over locomotive axle box is one of main parts size of bogie, and steel spring bears the locomotive weight of more than bogie frame.Steel spring transmits the vertical stiffness of the rigidity referred to as single stage suspension of vertical force, in addition, also having Longitudinal stiffness and transverse stiffness to be delivered to bogie frame in single stage suspension.The vertical stiffness of single stage suspension, Longitudinal stiffness and transverse stiffness will select appropriately, and locomotive just can have good dynamic performance.
Steel spring is to work in the environment of complicated and load are continually changing, and in vertical, vertical and horizontal the power of single stage suspension, the vertical pressure being continually changing is the main cause allowing steel spring produce metal fatigue.Change of vibration during locomotive operation and load etc. all can make steel spring bear the vertical pressure of change, the vertical pressure of this change can make steel spring local produce metal fatigue through long-time accumulation, so that steel spring local produces fine crack, gradually extended by fine crack again, ultimately result in steel spring local fracture and lost efficacy.
For preventing steel spring from rupturing, in addition to improving the technique manufacturing steel spring itself and material, elastic buffering mechanism can also be increased in primary spring, to reduce the vertical load that steel spring bears, the metal fatigue that during reduction locomotive operation, steel spring produces, thus prevent steel spring from rupturing.
Although now with locomotive on increased the lateral pressure that block rubber to buffer single stage suspension as vertical backstop, its shape and material are all single, therefore lack variation rigidity and the regulation for rigidity is very limited.And variation rigidity all has a significant impact for the comfort level preventing passenger on steel spring fracture and locomotive：The amplitude of the variation rigidity of vertical backstop is excessive, then the resistance to shock of locomotive is poor, and the comfort level of passenger is also just poor；The amplitude of the variation rigidity of vertical backstop is too small although resistance to shock share can not vertical load that steel spring bear more preferably but well, is also just difficult to prevent steel spring from rupturing.
Vertical backstop therefore how is made to have suitable variation rigidity and rigidity, locomotive is allowed can effectively to prevent steel spring from rupturing on the premise of not reducing degree of passenger comfort, thus meeting people's higher and higher requirement to locomotive, also allow railway speed increase, heavily loaded strategy can more smoothly implement simultaneously, also need to study further.
Find that following patent and the present invention have similarity by domestic retrieval：
Application No. 201420559352.6, the utility model of entitled " a kind of rail vehicle truck and its single pull rod type single stage suspension structure " discloses a kind of rail vehicle truck and its single pull rod type single stage suspension structure, it is vertical backstop that single pull rod type single stage suspension structure includes framework, axle box, primary spring and one, and framework is provided with guide groove and the first location hole；Axle box is provided with backstop erecting bed；Primary spring includes primary spring seat and steel spring group, and one end of primary spring seat has the spacing preiection being limited in the first positioning in the hole, and the other end has backstop guide pillar；Also include the first cushion pad being arranged between upper cover plate and primary spring seat, it is coated at spacing preiection；Second cushion pad, axle box is provided with mounting groove on the end face of upper cover plate, and the second cushion pad is arranged in mounting groove, and one end of steel spring group is offseted with primary spring seat, and the other end is offseted with the second cushion pad.This utility model passes through the first cushion pad and the second cushion pad can buffer the impulsive force that primary spring is subject to, thus buffering the vertical vibration of primary spring generation, and then improves the service life of primary spring.
Application No. 201020542266.6, it is elastic positioning device that the utility model of entitled " rail vehicle one is elastic positioning device " discloses a kind of rail vehicle one, the flexibly positioned combination of axle box one is taken to be the composite structured of vertical backstop, to optimize axle-box locating rigidity and to ensure that bogie has high Instability speed.It is increase elastic buffer backstop in vertical spring assembly one, to avoid one to be when vertical load is excessive or one to be for wheel, larger rigid shock to be formed to positions such as, axle boxes when damping means lost efficacy.One be elastic positioning device be arranged on bogie frame and axletree vertical between, include pivoted arm axle box and the primary spring device being arranged at axle box top.Caoutchouc elasticity node installation is passed through in framework in one end of axle box, and its other end is connected with framework by a vertical damper.Described primary spring device, has train wheel bridge and lower plate, and the Coiled coil spring compressing installation between train wheel bridge and lower plate.In the inner ring of Coiled coil spring, train wheel bridge bottom, one rubber backstop is connected by overall sulfuration process.
Application No. 200820186834.6, the utility model of entitled " railway vehicle bogie primary-suspension spring mechanism " discloses a kind of railway vehicle bogie primary-suspension spring mechanism, interior including be nested with one heart, on outer spring and spring, lower positioning seat, on spring, positioning seat is connected with bogie frame, under spring, positioning seat is connected with bogie positioning arm, there is one be fixed on positioning seat under spring and the coaxial mounted flexible block with spring, during no-load, this flexible block is to the distance being less than the deformation of spring maximum compression apart from sum of distance and this flexible block maximum compression deformation of positioning seat on spring.When overload of vehicle or dynamic loading are excessive, flexible block available buffer lateral pressure, it is to avoid spring kills or collides and lead to spring breakage, thus improve the vertical stiffness of spring and the service life extending spring.When spring surprisingly ruptures, this flexible block can be as safety supports it is ensured that the driving safety of rail vehicle.
Although above-mentioned patent has the elastic buffering mechanism being contained in steel spring, the structure of above-mentioned elastic buffering mechanism does not simply enable variation rigidity, and the regulation of rigidity also can be limited by itself structure." impulsive force that primary spring is subject to can be buffered by the first cushion pad and the second cushion pad, thus buffering the vertical vibration of primary spring generation, and then improve the service life of primary spring " is mentioned in the patent of Application No. 201420559352.6." being increase elastic buffer backstop in vertical spring assembly one, to avoid one to be when vertical load is excessive or one to be for wheel, larger rigid shock to be formed to positions such as, axle boxes when damping means lost efficacy " is mentioned in the patent of Application No. 201020542266.6.And mention " when spring surprisingly ruptures, this flexible block can be as safety supports it is ensured that the driving safety of rail vehicle " in the patent of Application No. 200820186834.6.As can be seen here, various elastic buffering mechanisms in above-mentioned patent are not due to adjusting the structure of variation rigidity, and its structure simply makes the regulation of rigidity also be restricted, therefore, it is difficult to effectively reducing the metal fatigue of steel spring, still it is difficult to increase substantially the ability of the Resisting fractre of steel spring, so how more efficiently prevent steel spring fracture from also needing to probe into further.
Content of the invention
The technical problem to be solved in the present invention is：Change for load during locomotive operation and vibration etc. all can make steel spring bear the vertical pressure of change, and the vertical pressure changing can make steel spring local produce metal fatigue through long-time accumulation, so that steel spring local produces fine crack, gradually extended by fine crack again, ultimately result in steel spring local fracture, and propose vertical backstop to be installed in steel spring to prevent steel spring from rupturing.
For the problems referred to above, technical scheme proposed by the present invention is：A kind of method preventing steel spring fracture, wearing plate is embedded in rubber bodies top, can adjust the rigidity of vertical backstop by the diameter or height adjusting wearing plate；Base is embedded in rubber body, enables base that the rubber bodies of vertical backstop are carried out spacing, the height of adjusting base can adjust the rigidity of vertical backstop；The upper end of rubber bodies is set as more than two sections of annular flat segments, adjusts the angle between annular flat segments and horizontal plane, the variation rigidity of vertical backstop can be adjusted；Reduce, by adjusting rigidity, variation rigidity and the spacing position of vertical backstop, the vertical load that steel spring bears, reduce the metal fatigue of steel spring generation during locomotive operation, thus preventing steel spring from rupturing.
Further, wearing plate is embedded in rubber bodies, increases the rigidity that abrasion board diameter can increase vertical backstop, a diameter of 20mm-50mm of wearing plate；The height increasing wearing plate can increase the rigidity of vertical backstop, and the height of wearing plate is 10mm-20mm.
Further, the base of metal is arranged on the lower end of rubber bodies, when the pressure that rubber bodies upper end is subject to vertical load produces deformation and moves down, base can limit rubber bodies upper end and move further downward, thus playing vertical spacing effect；The height of adjusting base, can adjust vertical backstop and carry out spacing position；And the height of increase base, the rigidity of vertical backstop can be increased, the height of base is 30mm-70mm.
Further, the height increasing rubber bodies can reduce the rigidity of vertical backstop, and the diameter increasing rubber bodies can increase the rigidity of vertical backstop, a diameter of 80mm-95mm of rubber bodies.
Further, more than two sections of annular flat segments are arranged on rubber bodies, the angle between every section of annular flat segments and horizontal plane is all higher than or is equal to 90 degree, reduces the angle between annular flat segments and horizontal plane, can increase the amplitude of the variation rigidity of vertical backstop.
Further, the hop count of annular flat segments in rubber bodies is corresponding with the number of times of the variation rigidity of vertical backstop, increases the hop count of the annular flat segments in rubber bodies, can increase the number of times of the variation rigidity of vertical backstop；Adjust the length of any one section of annular flat segments in rubber bodies, the position of vertical backstop variation rigidity can be adjusted.
A kind of vertical backstop preventing steel spring fracture, vertical backstop is located in steel spring, and vertical backstop includes rubber bodies, wearing plate and base；Rubber bodies top is embedded with wearing plate, and the lower end of rubber bodies is provided with base；The upper end of rubber bodies is provided with more than two sections of annular flat segments, and the bottom of rubber bodies is provided with shrinkage pool.
Further, wearing plate is the revolving body of I-shaped for longitudinal section, and wearing plate is embedded in rubber bodies, and wearing plate exceeds rubber bodies top 1mm-2mm；The centre of wearing plate caves inward, and to be embedded in the corner of the wearing plate in rubber bodies be all smooth circular arc chamfering.
Further, base is revolving body, and base includes base body and base chimb；The thickness of base body upper end is less than the thickness of base body lower end, and the middle part in the outside of base body is provided with base chimb, and base chimb protrudes laterally；The height of base is 30mm-70mm, and to be embedded in the corner of the base in rubber bodies be all smooth circular arc chamfering.
Further, the upper end of rubber bodies is provided with more than two sections of annular flat segments, is provided with annular arc section between adjacent annular flat segments, and adjacent annular flat segments are passed through annular arc section and connected, and rubber bodies, wearing plate and base are an entirety.
It is an advantage of the invention that：
1. the base of vertical backstop is made of metal, and wearing plate is made up of nylon or politef, and base, wearing plate and rubber bodies are sulfided into an entirety so that vertical stop configurations are tight, firm under certain temperature and pressure by adhesive.
2. vertical backstop is contained in steel spring, can produce relative slip during locomotive operation between vertical backstop top and framework guide；Embed wearing plate at rubber bodies top, be avoided that rubber bodies and framework guide rub the rubber bodies vertex abrasion leading to for a long time, can extend the service life of vertical backstop.
3. wearing plate is made up of nylon or politef, not only smooth surface, and coefficient of friction is little, and surface is firm, wear-resisting so that wearing plate is hardly damaged.
4. wearing plate and base are embedded in rubber bodies, and the surface area contacting with each other is big, be difficult to loosen；And longitudinal section is that the wearing plate of I-shaped structure is stuck in rubber bodies and is not easily taken out；So that combining tight between wearing plate and rubber bodies, and base and rubber bodies, being difficult to loosen, departing from.
5. the upper end of rubber bodies is provided with multistage annular flat segments, adjust the angle between every section of annular flat segments and horizontal plane, the variation rigidity of vertical backstop can be adjusted so that vertical backstop has variation rigidity more by a small margin and less rigidity under small loads, so as to increase the comfort level of passenger；And make vertical backstop have variation rigidity by a relatively large margin and larger rigidity under a large load, thus allowing vertical backstop bear more vertical loads, reducing the metal fatigue that steel spring produces, effectively preventing steel spring from rupturing.
6. it is embedded with the base that metal is made in rubber bodies, and vertical backstop can be adjusted and carry out spacing position by the height of adjusting base, even if so that the situation of steel spring fracture occurs, vertical backstop also can be as safety supports it is ensured that the driving safety of rail vehicle.
7. in vertical backstop：Energy is by the diameter of regulation rubber bodies and wearing plate and height, and the height of adjusting base, to adjust the rigidity of vertical backstop；The variation rigidity of vertical backstop can be adjusted by adjusting the angle between every section in rubber bodies annular flat segments and horizontal plane；The number of times of the variation rigidity of vertical backstop can be adjusted by adjusting the hop count of annular flat segments；Vertical backstop can be adjusted and carries out spacing position by the height of adjusting base；So that by the variation rigidity, rigidity and the spacing position that adjust vertical backstop, allow vertical backstop adapt to the locomotive of different model, different loads, so applied widely, the highly versatile of this vertical backstop.
Brief description
Fig. 1 is the cross-sectional schematic one of the present invention；
Fig. 2 is the cross-sectional schematic two of the present invention；
Fig. 3 is the axonometric chart of the present invention；
Fig. 4 is the stiffness curve figure of the present invention；
Fig. 5 applies the structural representation in steel spring for the present invention；
In figure：1 vertical backstop, 11 rubber bodies, 111 first annular flat segments, 112 second annular flat segments, 113 the 3rd annular flat segments, 114 annular arc sections, 115 rubber bodies tops, 116 shrinkage pools, 12 wearing plates, 13 bases, 131 base body, 132 base chimbs, 2 steel springs, 3 framework guides, 4 positioning bases, 5 axle boxes, 6 bogie frames.
Specific embodiment
With reference to embodiment and accompanying drawing, the present invention is done with the description of a step：
Embodiment one
As shown in figure 5, axle box 5 is fixedly arranged above positioning base 4, above positioning base 4, it is provided with the steel spring 2 of Coiled coil shape, steel spring 2 supports the locomotive weight of bogie frame more than 6.In order to reduce the vertical load that steel spring 2 bears, reducing the metal fatigue of steel spring 2 generation during locomotive operation, thus preventing steel spring 2 from rupturing, steel spring 2 being provided with vertical backstop 1.The base chimb 132 of vertical backstop 1 and positioning base 4 mutually push up, because vertical backstop 1 and positioning base 4 are all revolving bodies so that vertical backstop 1 can be stuck in positioning base 4.It is provided with framework guide 3 in the surface of vertical backstop 1, when locomotive is in zero load, vertical backstop 1 is not contacted with framework guide 3；When the vertical load of locomotive increases, framework guide 3 is close downwards and extrudes vertical backstop 1；When vertical backstop 1 and framework guide 3 mutually push up, vertical backstop 1 can support the locomotive weight of bogie frame more than 6 together with steel spring 2, thus reducing the vertical load that steel spring 2 bears.
Although the rigidity increasing vertical backstop 1 can preferably reduce the vertical load that steel spring 2 bears, vertical backstop 1 rigidity is excessive, and locomotive has the risk of derailing, also can reduce vibration damping, the noise reduction of locomotive, also can reduce the comfort level of passenger.Therefore in order to allow vertical backstop 1 both be avoided that locomotive derailed, improve the comfort level of the vibration damping, anti-acoustic capability and passenger of locomotive, the vertical load that steel spring 2 bears can be reduced well again, effectively prevent steel spring 2 from rupturing it is necessary to meet claimed below：The initial rigidity of vertical first backstop 1 is little, and when initial, the amplitude of variation rigidity will less so that vertical backstop 1 has just contacted can good effectiveness in vibration suppression during framework guide 3；When pushing further then as framework guide 3, the rigidity of vertical backstop 1 will be able to constantly increase, and the speed of the now increase of rigidity is very fast, the amplitude of variation rigidity will be gradually increased, after making framework guide 3 push certain distance, vertical backstop 1 can share larger vertical load, thus reducing the vertical load that steel spring 2 bears, and ensure overload operating mode lower drive mechanism and wheel between position relationship will not deteriorate.
Locomotive, in zero load, has certain gap between the wearing plate 12 of vertical backstop 1 and framework guide 3, now the load of primary spring is all supported by steel spring 2.With the increase of load, vertical backstop 1 is contacted with framework guide 3, and load starts jointly to be supported by steel spring 2 and vertical backstop 1.The ratio of the distance that the rigidity of vertical backstop 1 is exactly the load born of vertical backstop 1 to be moved down with the rubber bodies top 115 of vertical backstop 1.The stiffness curve figure of vertical backstop 1 is as shown in figure 4, vertical backstop 1 deformation in Fig. 4 refers to the distance that the rubber bodies top 115 of vertical backstop 1 moves down.
Figure 4, it can be seen that the load that vertical backstop 1 is born is when 0 starts to increase, stiffness curve is shallower, and initial stiffness curve is close to linear.That is, the initial rigidity of vertical backstop 1 is less, and the speed that rigidity increases is very slow.Such characteristic can allow vertical backstop 1 have good effectiveness in vibration suppression, can prevent locomotive from derailing.
Figure 4, it can be seen that in the present embodiment, the increase of the load born with vertical backstop 1, when load is more than 6KN, rigidity gradually assumes non-linear increase that is to say, that gradually assuming variation rigidity.And load just above 6KN when, the distance that rubber bodies 11 move down often increases a certain amount, for example, often increase 1mm, corresponding load increase is less.That is, now less to the amplitude of the variation rigidity of backstop, the speed that rigidity increases is slower.Such characteristic can allow vertical backstop 1 have preferable effectiveness in vibration suppression, and passenger can be allowed to have good comfort level, can effectively prevent steel spring 2 from rupturing simultaneously.
And when vertical backstop 1 bears big load, such as, when more than 12KN, the distance that rubber bodies 11 move down often increases a certain amount, for example, often increase 1mm, corresponding load increases larger.That is, now the amplitude of the variation rigidity of vertical backstop 1 is larger, the speed that rigidity increases.Such characteristic can allow vertical backstop 1 share more load, preferably reduces the vertical load that steel spring 2 bears, thus more effectively preventing steel spring 2 from rupturing.
In addition, because load when locomotive different automobile types are unloaded is different, and different automobile types maximum load is also different, it is different for the initial rigidity of vertical backstop 1 and the requirement of variation rigidity on therefore different locomotives, and the requirement that different locomotive changes with the increase of load to rigidity is also different.So the variation rigidity of vertical backstop 1 and rigidity need flexibly be adjusted, to meet the specific requirement of different types of locomotive.
As shown in figures 1 and 3, vertical backstop 1 is axisymmetric revolving body, and vertical backstop 1 includes rubber bodies 11, wearing plate 12 and base 13.Rubber bodies top 115 is embedded with the wearing plate 12 being made up of nylon or politef so that wearing plate 12 coefficient of friction is little and durable in use.Wearing plate 12 is embedded in rubber bodies 11, but wearing plate 12 exceeds 1mm-2mm than rubber bodies top 115；The centre of wearing plate 12 caves inward, and forms the revolving body that longitudinal section is I-shaped.The wearing plate 12 of I-shaped makes wearing plate 12 be difficult to spin off from rubber bodies 11.The corner of the wearing plate 12 being embedded in rubber bodies 11 is all smooth circular arc chamfering, the junction enabling rubber bodies 11 and wearing plate 12 reduces the concentration of stress, so that wearing plate 12 remains to combine closely with rubber bodies 11 during long-term use, it is not likely to produce gap.
Wearing plate 12 is embedded in can not only prevent rubber bodies 11 from directly contacting with framework guide 3 and rubbing so that rubber bodies 11 will not be worn and torn moreover it is possible to change the rigidity of vertical backstop 1 in rubber bodies 11.Increase the diameter of wearing plate 12 and height all can reduce the volume of rubber bodies 11, thus the rigidity of vertical backstop 1 can be led to increase.Conversely, reducing the diameter of wearing plate 12 and the rigidity that highly all can reduce vertical backstop 1.The diameter of wearing plate 12 is preferably 20mm-50mm in fact it is highly preferred that being 10mm-20mm.
The rubber bodies 11 of vertical backstop 1 are located above base 13, and base 13 is made of metal, and rubber bodies 11 are sulfided into an entirety under certain temperature and pressure by adhesive with base 13.Periphery at rubber bodies top 115 is provided with more than two sections of annular flat segments, it is provided with annular arc section 114 between adjacent annular flat segments, adjacent annular flat segments are passed through annular arc section 114 and are connected, annular flat segments are smooth connections with the junction of annular arc section 114, and rubber bodies 11 are an entirety.
Between every section of annular flat segments and horizontal plane, rigidity when rubber bodies 11 can be made to be pushed by framework guide 3 in a certain angle is in nonlinear change that is to say, that rubber bodies 11 can be allowed to produce variation rigidity.Multistage can make rubber bodies 11 produce multiple variation rigidity horizontal by the annular flat segments of different angles.Angle between every section of annular flat segments and horizontal plane is all higher than or is equal to 90 degree, increasing the angle between annular flat segments and horizontal plane, can reduce the amplitude of the variation rigidity of vertical backstop 1, thus improving the effectiveness in vibration suppression of vertical backstop 1, improving the comfort level of passenger.Conversely, reducing the angle between annular flat segments and horizontal plane, the amplitude of the variation rigidity of vertical backstop 1 can be increased so that when the distance that moves down of rubber bodies top 115 is less, rigidity can increase faster.
As depicted in figs. 1 and 2, there are 3 sections of annular flat segments in the present embodiment, the angle between first annular flat segments 111 and horizontal plane is A, the angle between second segment annular flat segments 112 and horizontal plane is B.Angle between 3rd annular flat segments 113 and horizontal plane is 90 degree.The initial rigidity that the above mentions locomotive is little, and the amplitude of initial variation rigidity is less, and increases the angle between annular flat segments and horizontal plane, can reduce the amplitude of the variation rigidity of vertical backstop 1.Again because the deformation of rubber bodies 11 is from the beginning of rubber bodies top 115, therefore should be greater than the angle of angle B closer to the angle of the angle A at rubber bodies top 115, just can make the less initial variation rigidity of vertical backstop 1 acquisition amplitude.The optimized angle of angle A is 135 degree of -165 degree, and the optimized angle of angle B is 100 degree of -140 degree.
The hop count of annular flat segments in rubber bodies 11 is corresponding with the number of times of the variation rigidity of vertical backstop 1, increases the hop count of the annular flat segments in rubber bodies 11, can increase the number of times of the variation rigidity of vertical backstop 1.In the present embodiment, the hop count of annular flat segments is 3, and the position that variation rigidity produces is the angle between adjacent two sections annular flat segments, define 2 angles due between 3 sections of annular flat segments, therefore in the present embodiment, the number of times of the variation rigidity of vertical backstop 1 is 2.And when the angle of angle is all constant, the position of angle depends on the length of annular flat segments, therefore adjust the length of any one section of annular flat segments in rubber bodies 11, the position of vertical backstop 1 variation rigidity can be adjusted.
As shown in Fig. 2 the height increasing rubber bodies 11 can reduce the rigidity of vertical backstop 1, the diameter increasing rubber bodies 11 can increase the rigidity of vertical backstop 1.Conversely, the height reducing rubber bodies 11 can increase the rigidity of vertical backstop 1, the diameter reducing rubber bodies 11 can reduce the rigidity of vertical backstop 1.The vertical length of first annular flat segments 111 is H1, and the vertical length of the second annular flat segments 112 is H2, and the length of the 3rd annular flat segments 113 is H3.Wherein the preferred value of H1 is 10mm-20mm, and the preferred value of H2 is 10mm-40mm, and the preferred value of H3 is 15mm-60mm, and the diameter preferred value of rubber bodies 11 is 80mm-95mm.
As shown in Figure 1, Figure 2 and Figure 3, base 13 is revolving body, and base 13 includes base body 131 and base chimb 132；The thickness of base body 131 upper end is less than the thickness of base body 131 lower end, and the middle part in the outside of base body 131 is provided with base chimb 132, and base chimb 132 protrudes laterally.Base 13 is embedded in rubber bodies 11, and it is sulfided into an entirety with rubber bodies 11, for reducing the stress concentration of base 13 and rubber bodies 11 junction, prevent from producing during long-term use gap between base 13 and rubber bodies 11, smooth circular arc chamfering has all been processed in the corner of the base 13 being embedded in rubber bodies 11.
The base 13 of metal is arranged on the lower end of rubber bodies 11, when the pressure that rubber bodies 11 upper end is subject to vertical load produces deformation and moves down, base 13 can limit rubber bodies 11 upper end and move further downward, thus playing vertical spacing effect.The height of therefore adjusting base 13, can adjust vertical backstop 1 and carry out spacing position, the preferred value of the height H6 of base 13 is 30mm-70mm.
Base 13 is embedded in rubber bodies 11, and the base body 131 of especially base chimb 132 top has extend in rubber bodies 11, and the distance on the top of base body 131 top to base chimb 132 is H5.The value of H5 is bigger, the rigidity of vertical backstop 1 bigger that is to say, that increase base 13 height, be especially to increase the height of H5, the rigidity of vertical backstop 1 can be increased.Conversely, reducing the height of base 13, especially reducing the height of H5, the rigidity of vertical backstop 1 can be reduced, the preferred value of H5 is 10mm-45mm.
Because base 13 is made up of the big metal of hardness, vertical spacing effect can be played, the therefore rubber bodies 11 below the top of base body 131 hardly produce impact to the rigidity of vertical backstop 1 and variation rigidity.So manufacture for convenience during vertical backstop 1 being injected hot rubber, also for the consumptive material reducing rubber, it is provided with a shrinkage pool 116 in the centre position of rubber bodies 11 bottom.Although hardly the rigidity on vertical backstop 1 and variation rigidity produce impact to the height H4 of shrinkage pool 116, the value too conference of H4 affects the firmness that rubber bodies 11 are combined with base 13, and therefore H4 can not be contour with H6, and the preferred value of H4 is 10mm-30mm.
In sum, vertical backstop 1 is by regulation rubber bodies 11 and wearing plate 12 diameter and height, and the height of adjusting base 13, to adjust the rigidity of vertical backstop 1；By adjusting the angle between annular flat segments and horizontal plane in rubber bodies 11, to adjust the variation rigidity of vertical backstop 1；By adjusting the hop count of annular flat segments, to adjust the number of times of the variation rigidity of vertical backstop 1；By the height of adjusting base 13, to adjust vertical backstop 1 and to carry out spacing position；By adjusting the number of times of the rigidity, variation rigidity and variation rigidity of vertical backstop 1, the position of variation rigidity and the spacing position of vertical backstop 1 are reducing the vertical load that steel spring 2 bears, thus preferably reducing the metal fatigue that steel spring 2 during locomotive operation produces, more effectively prevent steel spring 2 from rupturing.
It will be apparent that on the premise of without departing from principle of the present invention, some improvement made or modification are regarded as protection scope of the present invention.
Claims (10)
1. a kind of method preventing steel spring fracture is it is characterised in that by wearing plate（12）It is embedded in rubber bodies top（115）, by adjusting wearing plate（12）Diameter or height can adjust vertical backstop（1）Rigidity；
By base（13）It is embedded in rubber bodies（11）Interior, make base（13）Can be to vertical backstop（1）Rubber bodies（11）Carry out spacing, adjusting base（13）Height can adjust vertical backstop（1）Rigidity；
By rubber bodies（11）Upper end be set as more than two sections of annular flat segments, adjust the angle between annular flat segments and horizontal plane, vertical backstop can be adjusted（1）Variation rigidity；
By adjusting vertical backstop（1）Rigidity, variation rigidity and spacing position to be reducing steel spring（2）The vertical load bearing, reduces steel spring during locomotive operation（2）The metal fatigue producing, thus prevent steel spring（2）Fracture.
2. a kind of method preventing steel spring fracture according to claim 1 is it is characterised in that wearing plate（12）It is embedded in rubber bodies（11）In, increase wearing plate（12）Diameter can increase vertical backstop（1）Rigidity, wearing plate（12）A diameter of 20mm-50mm；Increase wearing plate（12）Height can increase vertical backstop（1）Rigidity, wearing plate（12）Height be 10mm-20mm.
3. a kind of method preventing steel spring fracture according to claim 1 is it is characterised in that base by metal（13）It is arranged on rubber bodies（11）Lower end, work as rubber bodies（11）When upper end is subject to the pressure of vertical load to produce deformation and move down, base（13）Rubber bodies can be limited（11）Upper end moves further downward, thus playing vertical spacing effect；
Adjusting base（13）Height, vertical backstop can be adjusted（1）Carry out spacing position；And increase base（13）Height, vertical backstop can be increased（1）Rigidity, base（13）Height be 30mm-70mm.
4. a kind of method preventing steel spring fracture according to claim 1 is it is characterised in that increase rubber bodies（11）Height can reduce vertical backstop（1）Rigidity, increase rubber bodies（11）Diameter can increase vertical backstop（1）Rigidity, rubber bodies（11）A diameter of 80mm-95mm.
5. a kind of method preventing steel spring fracture according to claim 1 is it is characterised in that in rubber bodies（11）The upper annular flat segments arranging more than two sections, the angle between annular flat segments and horizontal plane is more than or equal to 90 degree, reduces the angle between annular flat segments and horizontal plane, can increase vertical backstop（1）Variation rigidity amplitude.
6. a kind of method preventing steel spring fracture according to claim 1 is it is characterised in that rubber bodies（11）On the hop count of annular flat segments and vertical backstop（1）The number of times of variation rigidity be corresponding, increase rubber bodies（11）On annular flat segments hop count, vertical backstop can be increased（1）Variation rigidity number of times；Adjust rubber bodies（11）On any one section of annular flat segments length, vertical backstop can be adjusted（1）The position of variation rigidity.
7. a kind of vertical backstop preventing steel spring fracture, vertical backstop（1）Positioned at steel spring（2）In it is characterised in that vertical backstop（1）Including rubber bodies（11）, wearing plate（12）And base（13）；Rubber bodies top（115）It is embedded with wearing plate（12）, rubber bodies（11）Lower end be provided with base（13）；Rubber bodies（11）Upper end be provided with more than two sections of annular flat segments, rubber bodies（11）Bottom be provided with shrinkage pool（116）.
8. a kind of vertical backstop preventing steel spring fracture according to claim 7 is it is characterised in that wearing plate（12）For longitudinal section for I-shaped revolving body, wearing plate（12）It is embedded in rubber bodies（11）In, and wearing plate（12）Exceed rubber bodies top（115）1mm-2mm；Wearing plate（12）Centre cave inward, and be embedded in rubber bodies（11）In wearing plate（12）Corner be all smooth circular arc chamfering.
9. a kind of vertical backstop preventing steel spring fracture according to claim 7 is it is characterised in that base（13）For revolving body, base（13）Including base body（131）With base chimb（132）；Base body（131）The thickness of upper end is less than base body（131）The thickness of lower end, base body（131）The middle part in outside be provided with base chimb（132）, base chimb（132）Protrude laterally；Base（13）Height be 30mm-70mm, and be embedded in rubber bodies（11）In base（13）Corner be all smooth circular arc chamfering.
10. a kind of vertical backstop preventing steel spring fracture according to claim 7 is it is characterised in that rubber bodies（11）Upper end be provided with more than two sections of annular flat segments, be provided with annular arc section between adjacent annular flat segments（114）, adjacent annular flat segments are by annular arc section（114）Connect, rubber bodies（11）, wearing plate（12）And base（13）It is an entirety.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602311A (en) * | 2021-08-26 | 2021-11-05 | 株洲时代瑞唯减振装备有限公司 | Transverse stop with higher stability |
| CN113719580A (en) * | 2021-08-09 | 2021-11-30 | 株洲时代新材料科技股份有限公司 | Method for improving service performance of transverse stop |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2644964A1 (en) * | 1976-01-29 | 1978-04-13 | Clouth Gummiwerke Ag | AXLE SUSPENSION FOR RAIL VEHICLES |
| DE59601236D1 (en) * | 1995-06-12 | 1999-03-11 | Phoenix Ag | STOP BUFFER, ESPECIALLY CROSS BUFFER |
| CN102398614A (en) * | 2010-09-15 | 2012-04-04 | 溧阳市振大铁路设备有限公司 | Series rubber spring for subway train bogie |
| CN102588482A (en) * | 2012-02-20 | 2012-07-18 | 株洲时代新材料科技股份有限公司 | Moderate transition method for variable stiffness of composite rubber stopping block and composite rubber stopping block |
| CN102943835A (en) * | 2012-12-07 | 2013-02-27 | 株洲时代新材料科技股份有限公司 | Elastic buffer |
| CN203702956U (en) * | 2014-03-11 | 2014-07-09 | 株洲时代新材料科技股份有限公司 | Integrated double-peak type variable-stiffness rubber stopper |
-
2015
- 2015-08-28 CN CN201510538169.7A patent/CN106476835B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2644964A1 (en) * | 1976-01-29 | 1978-04-13 | Clouth Gummiwerke Ag | AXLE SUSPENSION FOR RAIL VEHICLES |
| DE59601236D1 (en) * | 1995-06-12 | 1999-03-11 | Phoenix Ag | STOP BUFFER, ESPECIALLY CROSS BUFFER |
| CN102398614A (en) * | 2010-09-15 | 2012-04-04 | 溧阳市振大铁路设备有限公司 | Series rubber spring for subway train bogie |
| CN102588482A (en) * | 2012-02-20 | 2012-07-18 | 株洲时代新材料科技股份有限公司 | Moderate transition method for variable stiffness of composite rubber stopping block and composite rubber stopping block |
| CN102943835A (en) * | 2012-12-07 | 2013-02-27 | 株洲时代新材料科技股份有限公司 | Elastic buffer |
| CN203702956U (en) * | 2014-03-11 | 2014-07-09 | 株洲时代新材料科技股份有限公司 | Integrated double-peak type variable-stiffness rubber stopper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719580A (en) * | 2021-08-09 | 2021-11-30 | 株洲时代新材料科技股份有限公司 | Method for improving service performance of transverse stop |
| CN113602311A (en) * | 2021-08-26 | 2021-11-05 | 株洲时代瑞唯减振装备有限公司 | Transverse stop with higher stability |
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| Publication number | Publication date |
|---|---|
| CN106476835B (en) | 2018-10-19 |
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Effective date of registration: 20200608 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. |