CN106627640A - Method for preventing axle box bearing from being abraded by adjusting rubber layer bevels and rotating arm joints - Google Patents
Method for preventing axle box bearing from being abraded by adjusting rubber layer bevels and rotating arm joints Download PDFInfo
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Abstract
The invention discloses a method for preventing an axle box bearing from being abraded by changing rotating arm type axle box positioning, in particular to a method for preventing the axle box bearing from being abraded by adjusting a rotating arm joint rubber layer bevel structure. The combination structure of two conical inner hole rotating arm joints, and rubber layers of the two rotating arm joints are arranged in an oppositely-inclined mode. The method is characterized in that matching between the radial stiffness and the axial stiffness of the rotating arm joints is adjusted by changing the angles of the rotating arm joint rubber layer bevels, and the longitudinal stiffness and the deflection stiffness of the rotating arm joints are lowered; meanwhile, by increasing the axial stiffness, the torsional stiffness is prevented from being lowered, and abrasion of the axle bearing is effectively lowered.
Description
Technical field
The present invention relates to the method for adjustment and device of a kind of locomotive component performance, specifically related to a kind of method and pivoted arm node by changing the performance of locomotive pivoted arm node to prevent or reduce locomotive axle box bearing wear, to the service life for improving locomotive axle box bearing.Category locomotive component manufacturing technology field.
Background technology：
Pivoted arm axle-box locating mode is a kind of traditional axle-box locating mode, is widely used in light rail, subway, way-train and Highs-speed motor train unit bogie.So-called pivoted arm axle-box locating is to be combined together axle box with positioning arm, constitutes tumbler shaft, and axle box is integrated with positioning tie bar, constitutes pivoted arm structure.Axle box swivel arm positioning is connected with framework mounting seat by the node of pivoted arm one end.Node is made up of 2 cone rubber joints, for providing the longitudinal rigidity of axle-box locating and to provide one jointly with primary spring be lateral stiffness, the vertical and horizontal active force between transfer wheel pair and framework.The vertical elasticity of axle box is then provided by primary spring.Pivoted arm axle-box locating has simple structure, falls to taking turns convenient advantage, and can easily change the rubber arthrosis of node, positioning elastic parameter, regulation of the realization to bogie dynamic performance in length and breadth of adjustment and change axle box, is conducive to the trial-production of bogie modularity and new bogie.In recent years, tumbler axle-box positioning starts to be applied to engine truck, such as France T G V
- A bullet train motor car bogies, the 200 km/h locomotives of China's export Kazakhstan all adopt pivoted arm axle-box locating.The positioning of pivoted arm and its performance in joint affect very big to whole pivoted arm axle-box locating in pivoted arm axle-box locating.Wherein, pivoted arm node is a very crucial part, pivoted arm node plays a part of to connect pivoted arm and positioning tie bar, it is contemplated that elastically-deformable needs, general axle box swivel arm node all adopts the flexible member of metal-vulcanization of rubber, to pull strength and brake force between transfer wheel pair and framework.Transverse direction and longitudinal direction relative displacement of the wheel pair and between framework is realized by the deformation of node rubber sleeve, is the suspender for directly affecting vehicle operation stability and curving performance.But how to determine that pivoted arm node longitudinal rigidity and deflection stiffness are the current primary problems for solving, often there is axle bearing serious wear in Jing in present locomotive pivoted arm axle-box locating, largely it is that the performance parameter of pivoted arm node selects improper according to analysis, cause axle bearing serious wear, so by the normal operation of extreme influence vehicle, the service life of vehicle is reduced, therefore necessary this is further studied.
Do not find there be the patent literature constructed with the present invention by patent retrieval, the patent for having certain relation with the present invention mainly has following：
1st, Patent No. CN01213318, the utility model patent of entitled " bogie of car axle box swivel arm is hung with without abrasion composite joint sleeve ", which disclose a kind of bogie of car axle box swivel arm to hang with without abrasion composite joint sleeve, it is made up of mandrel, elastic rubbery body and the part of outer metallic sheath three, the core bag of mandrel is sphere, elastic rubbery body is sphere-contact with mandrel and outer metallic sheath, and elastic rubbery body is by bonding by Vulcanization on mandrel and outer metallic sheath.Its overall static properties is 1: 2.5～3.2 for axial direction and radial rigidity ratio, and outer metallic sheath 2 is the split-type structure of decile, can be three-clove style structure or multi-clove type structure, there is the compression groove of an axial direction between lobe and lobe, and, pressure assembling force for needed for ensureing, metal-coating is that slight interference coordinates installation with installing hole.
2nd, Patent No. CN200820072284, entitled " rocker type journal box positioning device of Highs-speed motor train unit bogie " utility model patent, which disclose a kind of rocker type journal box positioning device of Highs-speed motor train unit bogie, including axle box, contiguous block, rubber nodal point, journal box spring, axle box is split type, it is made up of upper axle box and lower axle box two parts, axle box is provided with safety screen, and laminated spring is provided between journal box spring and axle box.
3rd, Patent No. CN201210084417, the patent of invention of entitled " a kind of bogie rocker type journal box positioning device ", a kind of bogie rocker type journal box positioning device is which disclosed, it includes a positioning arm, an axle box, a framework positioning arm seat, a journal box spring, axle box rubber packing composition, a unidirectional axle box oil-pressure damper and a framework；Described positioning arm one end is bolted on the load bearing seat of the axle box, and the other end is connected by elastic panel nodes with the framework positioning arm seat, constitutes articulated jib；The journal box spring is provided between axle box top and framework, and the axle box rubber packing composition is had additional between the axle box and the journal box spring；It is connected by the unidirectional axle box oleo-gear with the frame end positioned at the positioning arm end.
3rd, Patent No. US19920892713, entitled " Axle box suspension with resilient elements adhered to
the movable components such that all relative movement between the components
The patent of invention of occurs by deformation of the resilient elements "; which disclose a kind of axle box hanging device; the device axle box one end is pivoted arm; pivoted arm is connected to vehicle frame by flexible member; make longitudinal direction; laterally and vertically can pass through to realize that pivoted arm gapless is moved between the flexible member of deformation and rotating shaft between the rotating shaft of rotary motion and vehicle frame, the riding stability for making vehicle is greatly improved.Further, since axle box hangs to be provided between relative slide unit limiting or gap, long-term abrasion is effectively reduced or eliminated, reduce the replacement of part, maintenance is more facilitated.
Although above-mentioned these patents are directed to some structures of pivoted arm node and improve, but all do not propose the performance of pivoted arm in specific how adjustment to improve pivoted arm axle-box locating by the longitudinal rigidity and deflection stiffness of pivoted arm node, prevent the abrasion of axle bearing.
Simultaneously, we are by the research worn and torn to existing axle bearing, we have found that why occur that axle bearing weares and teares, mainly vehicle is when high speed is by curve, take turns to very big transverse load can be produced to rail, because pivoted arm node is to connect a connector for being tumbler shaft and bogie frame, so having very big restricted effect, the longitudinal direction of current pivoted arm node to the bearing in axle box and axle box（Radially）Rigidity and deflection stiffness are excessive, and this will make wheel to can further increase to rail transverse load；Meanwhile, rail also can be to wheel to producing same big side-force reaction, so as to wear away wheel rim；Equally, this transverse load can also increase the transverse load of the bearing inside axle box, so as to cause the bearing wear inside axle box to increase.Therefore the bearing wear inside axle box is reduced, the appropriate longitudinal rigidity for reducing pivoted arm node is highly beneficial, but if the longitudinal rigidity of pivoted arm node reduces excessive, pivoted arm node connection axle box will be caused to be affected with the connection restriction effect of framework；So vehicle will occur vehicle snaking motion, reduce stationarity, and derailing will be occurred when serious.Therefore suitable pivoted arm node longitudinal direction how is selected（Radially）Rigidity becomes the key for effectively preventing the bearing wear inside axle box.And pivoted arm node longitudinal direction（Radially）The selection of rigidity is heavily dependent on the selection of pivoted arm node rubber layer, generally for pivoted arm node rubber layer design all mainly from the longitudinal direction of rubber layer and axial rigidity than considering, its radial/axial ratio of rigidity (abbreviation footpath/axle ratio of rigidity) is generally limited to into 7: 1 or so, and is all to consider relatively more by changing the layout ramp structure and mode of rubber layer.But find under study for action, what is taken due to pivoted arm axle-box locating transfer arm joint point is two section combinative structurees, so the symmetry of two section pivoted arm nodes, the cooperation of the axis of cone and taper hole, and its cumulative limit of four nodes of bogie and his part, cause pivoted arm after node installation eccentric with framework, so as to increased the horizontal and deflection load of node, this will increase wheel to the problems such as abrasion, so as to increase the bearing wear inside axle box.Actually at present we it is determined that pivoted arm node rubber layer design when only consider that radial/axial ratio of rigidity is inadequate, what pivoted arm node was born in actual applications be exist simultaneously radially, axially, deflection and torsional load, belong to composite bearing element, thus should from radially, axially, deflection and pivoted arm node is defined in terms of reversing four just truer.
In addition, we are also had found by analysis and research, pivoted arm node mainly transmits longitudinal traction, in horizontal and vertical guide wheel pair, and it is the displacement in steel spring vertical direction not limit one, and for the one of axle box overhead type is pivoted arm axle box, pivoted arm node is almost not subject to vertical load, that is to say, that the horizontal and vertical rigidity desired by pivoted arm node is different.It is typically all at present by digging out a some holes or groove on the direction in pivoted arm node rubber layer compared with side crops industry to meet this demand, empty real is formed to the rubber bodies structure for combining to realize, but do so can bring very big trouble to installing, need aligning direction to install during installation, will otherwise not reach desired effect.
The content of the invention
Present invention aims to often there is the problem of axle bearing serious wear in Jing in existing locomotive pivoted arm axle-box locating, a kind of method for preventing or reducing motorcycle axle bearing wear and pivoted arm node are proposed, the method and pivoted arm node effectively reduce axle bearing abrasion by the part-structure of the pivoted arm node in change pivoted arm axle-box locating.
In order to reach this purpose, the invention provides a kind of method for preventing axle box bearing from wearing and tearing by way of changing in pivoted arm axle-box locating, it is the method for preventing axle box bearing abrasion with adjustment pivoted arm node rubber layer ramp structure, using two section cone-shaped inner hole pivoted arm combination of nodes structures, and by two section pivoted arm nodes the relatively oblique arrangement of rubber layer, the radial rigidity of pivoted arm node and the matching of axial rigidity are adjusted by changing the angle on pivoted arm node rubber layer inclined-plane, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, simultaneously by increasing axial rigidity, torsional rigidity is avoided to decline, effectively reduce axle bearing abrasion.
Further, the matching of radial rigidity and axial rigidity of the described angle by changing pivoted arm node rubber layer inclined-plane to adjust pivoted arm node refers to that by the angle of pivoted arm node rubber layer inclined-plane and axis angle be 14 ~ 28 degree, and ensures that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm-1, so as to reduce transverse load of the vehicle when high speed is by curve, reduce the bearing wear inside axle box.
Further, the matching of radial rigidity and axial rigidity of the described angle by changing pivoted arm node rubber layer inclined-plane to adjust pivoted arm node refers to that by the angle of pivoted arm node rubber layer inclined-plane and axis angle be 14 ~ 28 degree, and ensures that the axial rigidity of pivoted arm node is controlled in 6-8KN.mm-1, by the longitudinal rigidity for properly increasing the axial rigidity of pivoted arm node to reduce pivoted arm node, and deflection stiffness is reduced by controlling longitudinal rigidity, while ensureing that torsional rigidity does not decline.
Further, the described angle for changing pivoted arm node rubber layer inclined-plane is to take two-segment type taper combinative structure come the mode for adjusting the radial rigidity of pivoted arm node and the matching of axial rigidity, and determine the longitudinal rigidity and deflection stiffness of pivoted arm node by calculating the torsion angle of pivoted arm node and deflection angle, again the bevel angle of pivoted arm node is determined by the longitudinal rigidity and deflection stiffness of pivoted arm node, ensure the bevel angle of each section of pivoted arm node at 14 ~ 28 degree, the length of left rubber layer and right rubber layer is in 35-60mm, and reduce radial rigidity, the radial rigidity for ensureing pivoted arm node is controlled in 11-13KN.mm-1, the axial rigidity of pivoted arm node is improved, axial rigidity is controlled in 6-8KN.mm-1, prevent or reduce the bearing wear inside axle box.
Further, the angle on described pivoted arm node rubber layer inclined-plane is inversely proportional to pivoted arm node radial rigidity matching relationship, is directly proportional to the matching relationship of axial rigidity, and relational expression is as follows：
Angle=the E on rubber layer inclined-planea‧Er‧( Ka / Kr)
In formula：Ea ——Axial rigidity revising elastic modulus coefficient；
Er ——Longitudinal rigidity revising elastic modulus coefficient；
Ka ——The axial rigidity of pivoted arm node；
Kr ——The longitudinal rigidity of pivoted arm node；
Wherein, EaSpan be 1.1 ~ 1.3；ErSpan be 0.5 ~ 0.6.
A kind of pivoted arm node, pivoted arm node is combined by the elastic rubber of two section symmetrical structures and formed, including left metal-coating and left inner metal sleeve, integrally sulfuration has left rubber layer between left metal-coating and left inner metal sleeve, and right metal-coating and right inner metal sleeve, integrally sulfuration has right rubber layer between right metal-coating and right inner metal sleeve；Left rubber layer and right rubber layer are opposite diagonally disposed respectively, and left inner metal sleeve is also respectively taper hole and arranges in opposite directions with the endoporus of right inner metal sleeve；Characterized in that, the angle of the inclined-plane of left rubber layer and right rubber layer and axis angle is at 14 ~ 28 degree, the chamfer length of left rubber layer and right rubber layer ensures the radial rigidity control of pivoted arm node in 11-13KN.mm in 35-60mm-1, axial rigidity control is in 6-8KN.mm-1, and reduce deflection stiffness by controlling longitudinal rigidity.
Further, the angle of described pivoted arm node rubber layer inclined-plane and axis angle is at 24 ~ 28 degree；Rubber layer length is controlled in 38-45mm, and ensures that the radial rigidity of pivoted arm node is controlled in 12-13KN.mm-1, axial rigidity control is in 7-8KN.mm-1。
Further, the angle of described pivoted arm node rubber layer inclined-plane and axis angle is at 28 degree；Rubber layer length is controlled in 40mm, and ensures that the radial rigidity of pivoted arm node is controlled in 12.5KN.mm-1, axial rigidity control is in 7.5KN.mm-1。
It is an advantage of the current invention that：
The present invention is after being studied repeatedly through the problem in the pivoted arm axle-box locating used scene Jing often there is axle bearing serious wear，It was found that vehicle is when high speed is by curve，Take turns to very big transverse load can be produced to rail，If the longitudinal rigidity of pivoted arm node is excessive，Transverse load will be made further to increase，Accelerate the practical situation of the bearing wear inside axle box，Propose by adjusting the method that pivoted arm node rubber layer bevel angle prevents axle box bearing from wearing and tearing，This considers in current practical application seldom from the bevel angle of rubber layer，But we have found through testing that the bevel angle of rubber layer selects for the radial rigidity of pivoted arm node and the matching of axial rigidity is changed to be highly important，And by adjusting the matching of radial rigidity and axial rigidity，So that radial rigidity declines，Axial rigidity increases，To ensure that the integral rigidity of pivoted arm node does not decline，It is helpful for transverse load increase is prevented.According to such case, we propose to improve the rubber layer bevel angle of pivoted arm node through the analysis and research of kinds of schemes, in the hope of by the matching of the radial rigidity of pivoted arm node and axial rigidity, suitably to reduce the radial rigidity of pivoted arm node, improve the axial rigidity of pivoted arm node, so as to reduce the bearing transverse load inside axle box, the bearing wear inside axle box is prevented；The present invention proposes to take two-segment type taper combinative structure, and determine the longitudinal rigidity and deflection stiffness of pivoted arm node by calculating the torsion angle of pivoted arm node and deflection angle, again the bevel angle of pivoted arm node is determined by the longitudinal rigidity and deflection stiffness of pivoted arm node, ensure the bevel angle of each section of pivoted arm node at 14 ~ 28 degree, the length of left rubber layer and right rubber layer is in 35-60mm, and reducing radial rigidity, it is ensured that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm-1, the axial rigidity of pivoted arm node is improved, axial rigidity is controlled in 6-8KN.mm-1, testing proves so can effectively prevent or reduce the bearing wear inside axle box.
Description of the drawings
Fig. 1 is the combining structure schematic diagram of pivoted arm node of the present invention；
Fig. 2 is the structural representation of the single section pivoted arm node of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings with specific embodiment the present invention is expanded on further.
Accompanying drawing 1 gives the principle of the present invention and illustrates, can be seen that from accompanying drawing, the present invention relates to a kind of method for preventing axle box bearing from wearing and tearing by way of changing in pivoted arm axle-box locating, it is the method for preventing axle box bearing abrasion with adjustment pivoted arm node rubber layer ramp structure, using two section cone-shaped inner hole pivoted arm combination of nodes structures, and by two section pivoted arm nodes the relatively oblique arrangement of rubber layer, the radial rigidity of pivoted arm node and the matching of axial rigidity are adjusted by changing the angle on pivoted arm node rubber layer inclined-plane, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, simultaneously by increasing axial rigidity, torsional rigidity is avoided to decline, effectively reduce axle bearing abrasion.
Further, the matching of radial rigidity and axial rigidity of the described angle by changing pivoted arm node rubber layer inclined-plane to adjust pivoted arm node refers to that by the angle of pivoted arm node rubber layer inclined-plane and axis angle be 14 ~ 28 degree, and ensures that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm-1, and deflection stiffness is reduced by controlling longitudinal rigidity, so as to reduce transverse load of the vehicle when high speed is by curve, reduce the bearing wear inside axle box.
Further, the matching of radial rigidity and axial rigidity of the described angle by changing pivoted arm node rubber layer inclined-plane to adjust pivoted arm node refers to that by the angle of pivoted arm node rubber layer inclined-plane and axis angle be 14 ~ 28 degree, and ensures that the axial rigidity of pivoted arm node is controlled in 6-8KN.mm-1, the longitudinal rigidity and deflection stiffness of pivoted arm node are reduced by properly increasing the axial rigidity of pivoted arm node, while ensureing that deflection stiffness and torsional rigidity do not decline.
Further, the described angle for changing pivoted arm node rubber layer inclined-plane is to take two-segment type taper combinative structure come the mode for adjusting the radial rigidity of pivoted arm node and the matching of axial rigidity, and determine the longitudinal rigidity and deflection stiffness of pivoted arm node by calculating the torsion angle of pivoted arm node and deflection angle, again the bevel angle of pivoted arm node is determined by the longitudinal rigidity and deflection stiffness of pivoted arm node, ensure the bevel angle of each section of pivoted arm node at 14 ~ 28 degree, the length of left rubber layer and right rubber layer is in 35-60mm, and reduce radial rigidity, the radial rigidity for ensureing pivoted arm node is controlled in 11-13KN.mm-1, and deflection stiffness is reduced by controlling longitudinal rigidity, and the axial rigidity of pivoted arm node is improved, axial rigidity is controlled in 6-8KN.mm-1, prevent or reduce the bearing wear inside axle box.
Further, the angle on described pivoted arm node rubber layer inclined-plane is inversely proportional to pivoted arm node radial rigidity matching relationship, is directly proportional to the matching relationship of axial rigidity, and relational expression is as follows：
Angle=the E on rubber layer inclined-planea‧Er‧( Ka / Kr)
In formula：Ea ——Axial rigidity revising elastic modulus coefficient；
Er ——Longitudinal rigidity revising elastic modulus coefficient；
Ka ——The axial rigidity of pivoted arm node；
Kr ——The longitudinal rigidity of pivoted arm node；
Wherein, EaSpan be 1.1 ~ 1.3；ErSpan be 0.5 ~ 0.6.
Embodiment one
Attached Fig. 1 and 2 gives a specific embodiment of the present invention；A kind of pivoted arm node, pivoted arm node is combined by the elastic rubber of two section symmetrical structures and formed, including left metal-coating 2 and left inner metal sleeve 1, integrally sulfuration has left rubber layer 3 between left metal-coating 2 and left inner metal sleeve 1, and right metal-coating 4 and right inner metal sleeve 5, integrally sulfuration has right rubber layer 6 between right metal-coating 4 and right inner metal sleeve 5；Left inner metal sleeve 1 is respectively taper hole and arranges in opposite directions with the endoporus of right inner metal sleeve 5, i.e., outside, the microcephaly of taper hole is close to be close together back-to-back the major part of taper hole interior；It is characterized in that, left rubber layer 3 and right rubber layer 6 are opposite diagonally disposed respectively, two section pivoted arm combination of nodes form the section of " eight words " shape after getting up, and the angle A of the inclined-plane of left rubber layer and right rubber layer and axis angle is at 14 ~ 28 degree, length L of left rubber layer and right rubber layer is in 35-60mm, the thickness H of left rubber layer and right rubber layer ensures that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm in 22-30mm-1, axial rigidity control is in 6-8KN.mm-1.It is by the outside 8 of the inner face 7 of left metal-coating 2 and left inner metal sleeve 1 and the contact surface of left rubber layer 3 that described left rubber layer 3 and right rubber layer 6 is diagonally disposed in opposite directions respectively, and the inner face 10 of right metal-coating 4 and the outside 9 of right inner metal sleeve 5 make the inclined-plane of same slope with the contact surface of right rubber layer 6, and ensure inclined-plane with the angle A of axis angle at 14 ~ 28 degree, so that left rubber layer 3 and right rubber layer 6 form contact of incline plane when contacting with jacket and inner sleeve, and ensure that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm-1, axial rigidity control is in 6-8KN.mm-1。
Embodiment two
Embodiment two is essentially the same with the structure of embodiment one, and the angle on the rubber layer inclined-plane for simply being increased is different, and the angle of described pivoted arm node rubber layer inclined-plane and axis angle is at 24 ~ 28 degree；Rubber layer length control 38-45mm, left rubber layer and right rubber layer thickness H in 25-28mm, and ensure pivoted arm node radial rigidity control in 12-13KN.mm-1, axial rigidity control is in 7-8KN.mm-1。
Embodiment three
Embodiment three is essentially the same with the structure of embodiment one, and the angle on the rubber layer inclined-plane for simply being increased is different, and the angle of described pivoted arm node rubber layer inclined-plane and axis angle is at 28 degree；Rubber layer length control 40mm, left rubber layer and right rubber layer thickness H in 27mm, and ensure pivoted arm node radial rigidity control in 12.5KN.mm-1, axial rigidity control is in 7.5KN.mm-1。
Above-mentioned listed embodiment, simply combine accompanying drawing carries out clear, complete description to technical scheme；Obviously, described embodiment a part of embodiment only of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
It is an advantage of the current invention that：
The present invention is after being studied repeatedly through the problem in the pivoted arm axle-box locating used scene Jing often there is axle bearing serious wear，It was found that vehicle is when high speed is by curve，Take turns to very big transverse load can be produced to rail，If the longitudinal rigidity of pivoted arm node is excessive，Transverse load will be made further to increase，Accelerate the practical situation of the bearing wear inside axle box，Propose by adjusting the method that pivoted arm node rubber layer bevel angle prevents axle box bearing from wearing and tearing，This considers in current practical application seldom from the bevel angle of rubber layer，But we have found through testing that the bevel angle of rubber layer selects for the radial rigidity of pivoted arm node and the matching of axial rigidity is changed to be highly important，And by adjusting the matching of radial rigidity and axial rigidity，So that radial rigidity declines，Axial rigidity increases，To ensure that the integral rigidity of pivoted arm node does not decline，It is helpful for transverse load increase is prevented.According to such case, we propose to improve the rubber layer bevel angle of pivoted arm node through the analysis and research of kinds of schemes, in the hope of by the matching of the radial rigidity of pivoted arm node and axial rigidity, suitably to reduce the radial rigidity of pivoted arm node, improve the axial rigidity of pivoted arm node, so as to reduce the bearing transverse load inside axle box, the bearing wear inside axle box is prevented；The present invention proposes to take two-segment type taper combinative structure, and determine the longitudinal rigidity and deflection stiffness of pivoted arm node by calculating the torsion angle of pivoted arm node and deflection angle, again the bevel angle of pivoted arm node is determined by the longitudinal rigidity and deflection stiffness of pivoted arm node, ensure the bevel angle of each section of pivoted arm node at 14 ~ 28 degree, the length of left rubber layer and right rubber layer is in 35-60mm, and reduce radial rigidity, and reducing deflection stiffness by controlling longitudinal rigidity, it is ensured that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm-1, the axial rigidity of pivoted arm node is improved, axial rigidity is controlled in 6-8KN.mm-1, testing proves so can effectively prevent or reduce the bearing wear inside axle box.
Claims (8)
1. it is a kind of change pivoted arm axle-box locating in by way of prevent axle box bearing wear and tear method, it is the method for preventing axle box bearing abrasion with adjustment pivoted arm node rubber layer ramp structure, using two section cone-shaped inner hole pivoted arm combination of nodes structures, and by two section pivoted arm nodes the relatively oblique arrangement of rubber layer, it is characterised in that：The radial rigidity of pivoted arm node and the matching of axial rigidity are adjusted by changing the angle on pivoted arm node rubber layer inclined-plane, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, simultaneously by increasing axial rigidity, it is to avoid torsional rigidity declines, axle bearing abrasion is effectively reduced.
2. the method for preventing axle box bearing abrasion by way of changing in pivoted arm axle-box locating as claimed in claim 1, it is characterised in that：The matching of radial rigidity and axial rigidity of the described angle by changing pivoted arm node rubber layer inclined-plane to adjust pivoted arm node refers to that by the angle of pivoted arm node rubber layer inclined-plane and axis angle be 14 ~ 28 degree, and ensures that the radial rigidity of pivoted arm node is controlled in 11-13KN.mm-1, and deflection stiffness is reduced by controlling longitudinal rigidity, so as to reduce transverse load of the vehicle when high speed is by curve, reduce the bearing wear inside axle box.
3. the method for preventing axle box bearing abrasion by way of changing in pivoted arm axle-box locating as claimed in claim 1, it is characterised in that：The matching of radial rigidity and axial rigidity of the described angle by changing pivoted arm node rubber layer inclined-plane to adjust pivoted arm node refers to that by the angle of pivoted arm node rubber layer inclined-plane and axis angle be 14 ~ 28 degree, and ensures that the axial rigidity of pivoted arm node is controlled in 6-8KN.mm-1, the longitudinal rigidity and deflection stiffness of pivoted arm node are reduced by properly increasing the axial rigidity of pivoted arm node, while ensureing that torsional rigidity does not decline.
4. the method for preventing axle box bearing abrasion by way of changing in pivoted arm axle-box locating as claimed in claim 2 or claim 3, it is characterised in that：The described angle for changing pivoted arm node rubber layer inclined-plane is to take two-segment type taper combinative structure come the mode for adjusting the radial rigidity of pivoted arm node and the matching of axial rigidity, and determine the longitudinal rigidity and deflection stiffness of pivoted arm node by calculating the torsion angle of pivoted arm node and deflection angle, again the bevel angle of pivoted arm node is determined by the longitudinal rigidity and deflection stiffness of pivoted arm node, ensure the bevel angle of each section of pivoted arm node at 14 ~ 28 degree, the length of left rubber layer and right rubber layer is in 35-60mm, and reduce radial rigidity, the radial rigidity for ensureing pivoted arm node is controlled in 11-13KN.mm-1, the axial rigidity of pivoted arm node is improved, axial rigidity is controlled in 6-8KN.mm-1, prevent or reduce the bearing wear inside axle box.
5. the method for preventing axle box bearing abrasion by way of changing in pivoted arm axle-box locating as claimed in claim 4, it is characterised in that：The angle on described pivoted arm node rubber layer inclined-plane is inversely proportional to pivoted arm node radial rigidity matching relationship, is directly proportional to the matching relationship of axial rigidity, and relational expression is as follows：
Angle=the E on rubber layer inclined-planea‧Er‧( Ka / Kr)
In formula：Ea ——Axial rigidity revising elastic modulus coefficient；
Er ——Longitudinal rigidity revising elastic modulus coefficient；
Ka ——The axial rigidity of pivoted arm node；
Kr ——The longitudinal rigidity of pivoted arm node；
Wherein, EaSpan be 1.1 ~ 1.3；ErSpan be 0.5 ~ 0.6.
6. a kind of pivoted arm node, pivoted arm node is combined by the elastic rubber of two section symmetrical structures and formed, including left metal-coating and left inner metal sleeve, integrally sulfuration has left rubber layer between left metal-coating and left inner metal sleeve, and right metal-coating and right inner metal sleeve, integrally sulfuration has right rubber layer between right metal-coating and right inner metal sleeve；Left rubber layer and right rubber layer are opposite diagonally disposed respectively, and left inner metal sleeve is also respectively taper hole and arranges in opposite directions with the endoporus of right inner metal sleeve；Characterized in that, the angle of the inclined-plane of left rubber layer and right rubber layer and axis angle is at 14 ~ 28 degree, the chamfer length of left rubber layer and right rubber layer ensures the radial rigidity control of pivoted arm node in 11-13KN.mm in 35-60mm-1, axial rigidity control is in 6-8KN.mm-1。
7. pivoted arm node as claimed in claim 6, it is characterised in that：The angle of described pivoted arm node rubber layer inclined-plane and axis angle is at 24 ~ 28 degree；Rubber layer length is controlled in 38-45mm, and ensures that the radial rigidity of pivoted arm node is controlled in 12-13KN.mm-1, axial rigidity control is in 7-8KN.mm-1。
8. pivoted arm node as claimed in claim 6, it is characterised in that：The angle of described pivoted arm node rubber layer inclined-plane and axis angle is at 28 degree；Rubber layer length is controlled in 40mm, and ensures that the radial rigidity of pivoted arm node is controlled in 12.5KN.mm-1, axial rigidity control is in 7.5KN.mm-1。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510706928.6A CN106627640B (en) | 2015-10-28 | 2015-10-28 | The method and pivoted arm node for preventing axle box bearing from wearing with adjustment rubber layer inclined-plane |
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| CN201510706928.6A CN106627640B (en) | 2015-10-28 | 2015-10-28 | The method and pivoted arm node for preventing axle box bearing from wearing with adjustment rubber layer inclined-plane |
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| CN106627640A true CN106627640A (en) | 2017-05-10 |
| CN106627640B CN106627640B (en) | 2019-01-22 |
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| CN201510706928.6A Active CN106627640B (en) | 2015-10-28 | 2015-10-28 | The method and pivoted arm node for preventing axle box bearing from wearing with adjustment rubber layer inclined-plane |
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| CN110217255A (en) * | 2019-06-21 | 2019-09-10 | 株洲时代新材料科技股份有限公司 | Rod node component and its design method |
| CN110450808A (en) * | 2019-08-15 | 2019-11-15 | 株洲时代新材料科技股份有限公司 | A kind of tapered method rubber section traction flexural pivot and prevent rubber-type face from cracking |
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Effective date of registration: 20200610 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. |