CN106627642B - By the method and pivoted arm node that change pivoted arm node structure size adjusting rigidity - Google Patents
By the method and pivoted arm node that change pivoted arm node structure size adjusting rigidity Download PDFInfo
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Abstract
A method of by changing pivoted arm node structure size adjusting rigidity, method to improve pivoted arm connection stiffness matching performance by adjusting pivoted arm node structure size, using two section cone-shaped inner hole pivoted arm combination of nodes structures, and change the rigidity property of pivoted arm node by the diameter dimension of change pivoted arm node rubber molding surface size and pivoted arm node inner sleeve and housing, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline.By the rigidity of rubber molding surface size and pivoted arm node inner sleeve and the Matching and modification pivoted arm node of the diameter dimension of housing, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, guarantee that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm‑1, and deflection stiffness is reduced by control longitudinal rigidity, while by increasing axial rigidity, guaranteeing that the axial rigidity of pivoted arm node is controlled in 6-8KN.mm‑1Within the scope of, guarantee that torsion stiffness does not decline, test proves to can be effectively prevented or reduce the bearing wear inside axle box.
Description
Technical field
The present invention relates to the methods of adjustment and device of a kind of locomotive component performance, and in particular to passes through change machine to a kind of
The performance of vehicle pivoted arm node prevents or reduces the method and pivoted arm node of locomotive axle box bearing wear, to improve locomotive axle box
The service life of bearing.Belong to locomotive component manufacturing technology field.
Background technique:
Pivoted arm axle-box locating mode is a kind of traditional axle-box locating mode, is widely used in light rail, subway, common
Car and Highs-speed motor train unit bogie.So-called pivoted arm axle-box locating is to be combined together axle box and positioning arm, and composition turns
Axle box and positioning tie bar are integrated by arm axle, form pivoted arm structure.Axle box swivel arm positioning be by the node of pivoted arm one end with
Framework mounting base is connected.Node is made of 2 cone rubber joints, for providing the longitudinal rigidity of axle-box locating and with one
It is that provide one jointly be lateral stiffness to spring, the vertical and horizontal active force between transfer wheel pair and framework.The vertical elasticity of axle box is then
It is provided by primary spring.Pivoted arm axle-box locating has the advantages that structure is simple, falls that wheel is convenient, and is convenient to replacement node
Positioning elastic parameter, adjusting of the realization to bogie dynamic performance are conducive to turn in length and breadth for rubber arthrosis, adjustment and change axle box
Trial-production to frame module 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 bogie, the 200 km/h locomotives of China's export Kazakhstan all use pivoted arm axle box fixed
Position.The performance in the positioning of pivoted arm and its joint influences entire pivoted arm axle-box locating very big in pivoted arm axle-box locating.Its
In, pivoted arm node is a very crucial component, and pivoted arm node plays a part of connecting pivoted arm and positioning tie bar, due to considering
To elastically-deformable needs, general axle box swivel arm node all uses metal-vulcanization of rubber elastic element, to transfer wheel pair
Tractive force and brake force between framework.Take turns the change that node rubber sleeve is relied on the transverse direction and longitudinal direction relative displacement framework
Shape is realized, is the suspender for directly affecting vehicle operation stability and curving performance.But how to determine that pivoted arm node is vertical
It is currently primarily to solve the problems, such as axle axis often occur in present locomotive pivoted arm axle-box locating to rigidity and deflection stiffness
Serious wear is held, is largely that the performance parameter selection of pivoted arm node is improper according to analysis, axle bearing is caused to wear
Seriously, the normal operation of extreme influence vehicle is reduced into the service life of vehicle in this way, therefore it is necessary to this is subject into one
Step research.
By patent retrieval do not find have with the patent literature report of same technique of the present invention, have certain relationship with the present invention
Patent mainly have it is following:
1, Patent No. CN01213318, it is entitled " bogie of car axle box swivel arm hangs no abrasion composite joint sleeve "
Utility model patent, which disclose a kind of bogie of car axle box swivel arm hang no abrasion composite joint sleeve, be by
Mandrel, elastic rubbery body and outer metallic sheath three parts composition, the core packet of mandrel are sphere shape, elastic rubbery body and mandrel and outer gold
Belonging to set is sphere-contact, and elastic rubbery body is by bonding by Vulcanization on mandrel and outer metallic sheath.Its whole static properties is
Axial with radial rigidity ratio is 1: 2.5~3.2, and outer metallic sheath 2 is the split-type structure of equal part, can be three-clove style structure or
Multi-clove type structure has an axial compression groove between valve and valve, also, is the pressure assembling force needed for guaranteeing, metal-coating and peace
Dress hole is coupled for slight interference.
2, Patent No. CN200820072284, it is 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 devices of Highs-speed motor train unit bogie, including axle box, company
Connect block, rubber nodal point, journal box spring, axle box be it is split type, be made of upper axle box and lower axle box two parts, axle box is equipped with safety
Baffle is equipped with laminated spring between journal box spring and axle box.
3, Patent No. CN201210084417, the invention of entitled " a kind of bogie rocker type journal box positioning device "
Patent, which disclose a kind of bogie rocker type journal box positioning devices, it includes a positioning arm, an axle box, a structure
Frame positioning arm seat, a journal box spring, axle box rubber packing composition, a unidirectional axle box oil-pressure damper and a framework；It is described fixed
Position pivoted arm one end is bolted on the bearing seat of the axle box, and the other end is positioned by elastic panel nodes and the framework
The connection of pivoted arm seat, constitutes articulated jib；It is provided with the journal box spring between framework at the top of the axle box, and described
The axle box rubber packing composition is had additional between axle box and the journal box spring；Positioned at the positioning arm end and the structure
Frame end portion passes through the unidirectional axle box oleo-gear connection.
3, Patent No. US19920892713, entitled " Axle box suspension with resilient
elements adhered to the movable components such that all relative movement
The invention of between the components occurs by deformation of the resilient elements "
Patent, which disclose a kind of axle box hanging device, which is pivoted arm, and pivoted arm is connected to by elastic element
Vehicle frame makes longitudinal direction, laterally and vertically between the shaft and vehicle frame of rotary motion can by the elastic element and shaft of deformation it
Between realize pivoted arm gapless movement, greatly improve the riding stability of vehicle.Further, since axle box suspension is equipped with opposite sliding
Restriction or gap, effectively reduce or eliminate long-term abrasion between component, reduce the replacement of part, and maintenance is more convenient.
Although some structures that these above-mentioned patents are directed to pivoted arm node are improved, but all without proposing specifically such as
What, to improve the performance of pivoted arm in pivoted arm axle-box locating, is prevented by longitudinal rigidity and the deflection stiffness adjustment of pivoted arm node
The abrasion of axle bearing.
Meanwhile we pass through the research worn to existing axle bearing, it has been found why will appear axle bearing mill
Damage, mainly vehicle are taken turns when passing through curve at a high speed to that can generate very big transverse load to rail, since pivoted arm node is to connect
Connect one be tumbler shaft and bogie frame connector, so to the bearing in axle box and axle box have very big restricted work
With longitudinal direction (radial direction) rigidity and deflection stiffness of current pivoted arm node are excessive, this will make wheel to meeting to rail transverse load
Further increase；Meanwhile rail also can be to wheel to same big side-force reaction is generated, to wear away wheel rim；Equally, this
Transverse load also will increase the transverse load of the bearing inside axle box, so that the bearing wear inside axle box be caused to aggravate.Therefore
The bearing wear inside axle box is reduced, the appropriate longitudinal rigidity for reducing pivoted arm node is highly beneficial, but if pivoted arm
The longitudinal rigidity of node, which reduces, will excessively make the connection restriction effect of pivoted arm node connection axle box and framework be affected；This
Sample car will will appear vehicle snaking motion, reduce stationarity, will will appear derailing when serious.Therefore how to select suitably to turn
Longitudinal (radial direction) rigidity of arm joint point becomes the key for effectivelying prevent the bearing wear inside axle box.And longitudinal (the diameter of pivoted arm node
To) selection of rigidity is heavily dependent on the selection of pivoted arm node rubber layer, generally for setting for pivoted arm node rubber layer
Meter is all mainly from the longitudinal direction of rubber layer and axial rigidity than come what is considered, by its radial/axial rigidity ratio, (abbreviation diameter/axis is rigid
Degree ratio) be generally limited to 7: 1 or so, and be all by change rubber layer layout bevel structure and mode consider it is relatively more.But
It is to find under study for action, what is taken due to pivoted arm axle-box locating transfer arm joint point is two section composite structures, so two section pivoted arms
Four nodes of cooperation and its bogie of the symmetry of node, the axis of cone and taper hole and the cumulative limit of his component, cause node to pacify
Pivoted arm and framework are eccentric after dress, to increase the transverse direction and deflection load of node, this will increase the problems such as wheel is to abrasion, thus
Increase the bearing wear inside axle box.Actually at present we only consider when determining the design of pivoted arm node rubber layer it is radial/
Axial rigidity ratio be it is inadequate, what pivoted arm node was born in practical applications be exist simultaneously radially, axially, deflection and torsion
Load, belongs to composite bearing element, therefore should limit from radially, axially, in terms of deflection and torsion four pivoted arm node
It is fixed just relatively truer.
In addition, we also found by analysis and research, pivoted arm node mainly transmits longitudinal traction, horizontal and vertical
Guide wheel pair is the displacement in steel spring vertical direction without limiting one, and is pivoted arm axle box for the one of axle box overhead type
For, pivoted arm node is almost not subject to vertical load, that is to say, that lateral and vertical rigidity is not desired by pivoted arm node
The same.It is typically all by digging out one on direction of the pivoted arm node rubber layer compared with side crops industry to meet this demand at present
Some holes or slot form empty real and realize to the rubber bodies structure combined, but do so and can bring a great deal of trouble to installation, pacify
It needs aligning direction to install when dress, desired effect otherwise will be not achieved.
Summary of the invention
It is an object of the invention to be directed in existing locomotive pivoted arm axle-box locating axle bearing serious wear often occur
The problem of, propose that a kind of method for preventing or reducing motorcycle axle bearing wear and pivoted arm node, this method and pivoted arm node are logical
Axle bearing abrasion is effectively reduced in the part-structure for the pivoted arm node crossed in change pivoted arm axle-box locating.
In order to reach this purpose, the present invention provides a kind of sides by change pivoted arm node structure size adjusting rigidity
Method, the method to improve pivoted arm connection stiffness matching performance by adjusting pivoted arm node structure size, using two section cone-shaped inner holes
Pivoted arm combination of nodes structure, and the diameter dimension by changing pivoted arm node rubber molding surface size and pivoted arm node inner sleeve and housing
Change the rigidity property of pivoted arm node, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, while by increasing axis
To rigidity, torsion stiffness is avoided to decline, axle bearing abrasion is effectively reduced.
Further, the diameter by changing pivoted arm node rubber molding surface size and pivoted arm node inner sleeve and housing
Size calculates pivoted arm node come the vertical deformation that the rigidity property that changes pivoted arm node is first according to arm length and steel spring
Torsion angle；Further according to the transversely deforming of arm length and steel spring, the deflection angle of pivoted arm node is calculated；Further according to pivoted arm section
The torsion angle and deflection angle of point determine the longitudinal rigidity, deflection stiffness and torsion stiffness of pivoted arm node, then according to vehicle
Transverse load and vertical load go out pivoted arm node rubber molding surface size and pivoted arm node inner sleeve and housing using FEM calculation
Diameter dimension passes through the vertical of the Matching and modification pivoted arm node of rubber molding surface size and pivoted arm node inner sleeve and the diameter dimension of housing
To rigidity, axial rigidity, torsion stiffness and deflection stiffness, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, simultaneously
By increasing axial rigidity, guarantee that torsion stiffness does not decline.
Further, the matching tune by rubber molding surface size and pivoted arm node inner sleeve and the diameter dimension of housing
Longitudinal rigidity, axial rigidity, torsion stiffness and the deflection stiffness of turn over arm joint point are to be set as the internal diameter of pivoted arm node inner sleeve
90 ~ 93mm, outer diameter are set as 128 ~ 132mm；The internal diameter of the diameter dimension of housing is set as 128 ~ 132mm, and outer diameter is set as 170
~173mm；And guarantee that the matching of the diameter dimension of pivoted arm node inner sleeve and housing can make the longitudinal rigidity of pivoted arm node control
11-13KN.mm-1, and deflection stiffness is reduced by control longitudinal rigidity, axial rigidity is controlled in 6-8KN.mm-1, to reduce
Transverse load of the vehicle when passing through curve at a high speed reduces the bearing wear inside axle box.
Further, the matching tune by rubber molding surface size and pivoted arm node inner sleeve and the diameter dimension of housing
Longitudinal rigidity, axial rigidity, torsion stiffness and the deflection stiffness of turn over arm joint point are by the two of the rubber layer of pivoted arm node inner sleeve
Inwardly dig out a circle groove in end；Wherein, minor diameter one groove dimensions are controlled in 15 ~ 30mm；Major diameter one groove ruler
Very little control reduces the radial rigidity of pivoted arm node in 10 ~ 20mm by way of digging groove, and is reduced by control longitudinal rigidity
Deflection stiffness improves the axial rigidity of pivoted arm node, so that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm-1, axial
Stiffness reliability is in 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, reduce the bearing inside axle box
Abrasion.
Further, the groove is multistage deep trench；Wherein, first segment is inwardly recessed from rubber layer port surface
Unilateral surface groove, unilateral surface groove have on one side for the ring side parallel with pivoted arm node axis, and another side is first inwardly to close up
Bevel edge；Second segment groove is the radiused ramp slot with circular arc bottom edge, and radiused ramp slot has is and pivoted arm node rubber layer on one side
Identical second bevel edge of the slope on inclined-plane, the second bevel edge are connected with the first bevel edge of unilateral surface groove, radiused ramp slot another side
For the annular edge being connected with unilateral inclined-plane grooved ring side；Annular edge is got up with the second bevel edge by circular sliding slopes, and radiused ramp is formed
Slot.
Further, the ring side of the unilateral surface groove and the first bevel edge are the bound edge of pivoted arm node rubber layer, ring side
It is extended to the end face of pivoted arm node metal inner sleeve and housing respectively with the first bevel edge, is formed whole parcel-like.
A kind of pivoted arm node, pivoted arm node are combined by the elastic rubber of two section symmetrical structures and are formed, including outside left metal
Set and left inner metal sleeve, integrally vulcanization has left rubber layer and right metal-coating between left metal-coating and left inner metal sleeve
With right inner metal sleeve, integrally vulcanization has right rubber layer between right metal-coating and right inner metal sleeve；Left rubber layer and right rubber
Layer difference is diagonally disposed in opposite directions, and the inner hole of left inner metal sleeve and right inner metal sleeve is also respectively that taper hole is arranged in opposite directions；Its feature exists
In the internal diameter of pivoted arm node inner sleeve is set as 90 ~ 93mm, and outer diameter is set as 128 ~ 132mm；The internal diameter of the diameter dimension of housing is set
It is set to 128 ~ 132mm, outer diameter is set as 170 ~ 173mm；And guarantee the matching energy of the diameter dimension of pivoted arm node inner sleeve and housing
So that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm-1, and deflection stiffness is reduced by control longitudinal rigidity, it is axial rigid
Degree control is in 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, reduce the Bearing Grinding inside axle box
Damage.
Further, the inward at both ends of the rubber layer of the pivoted arm node inner sleeve digs out a circle groove；Wherein, minor diameter
One groove dimensions is controlled in 15 ~ 30mm；The groove dimensions that major diameter is one are controlled in 10 ~ 20mm, pass through the shape of digging groove
Formula reduces the radial rigidity of pivoted arm node, improves the axial rigidity of pivoted arm node, so that the longitudinal rigidity control of pivoted arm node exists
11-13KN.mm-1, and deflection stiffness is reduced by control longitudinal rigidity, axial rigidity is controlled in 6-8KN.mm-1, to reduce
Transverse load of the vehicle when passing through curve at a high speed reduces the bearing wear inside axle box.
Further, the groove is multistage deep trench；Wherein, first segment groove is to concave from rubber layer port surface
Into unilateral surface groove, unilateral surface groove has on one side for the ring side parallel with pivoted arm node axis, and another side is inwardly closed up
First bevel edge；Second segment groove is the radiused ramp slot with circular arc bottom edge, and radiused ramp slot has is and pivoted arm node rubber on one side
Identical second bevel edge of the slope on glue-line inclined-plane, the second bevel edge are connected with the first bevel edge of unilateral surface groove, and radiused ramp slot is another
Annular edge to be connected with unilateral inclined-plane grooved ring side on one side；Annular edge is got up with the second bevel edge by circular sliding slopes, and circular arc is formed
Surface groove.
Further, the ring side of the unilateral surface groove and the first bevel edge are the bound edge of pivoted arm node rubber layer, ring side
It is extended to the end face of pivoted arm node metal inner sleeve and housing respectively with the first bevel edge, is formed whole parcel-like.
The present invention has the advantages that
The present invention is that axle bearing serious wear often occur in the pivoted arm axle-box locating by using scene
Problem carries out after studying repeatedly, finds vehicle when passing through curve at a high speed, takes turns to that can generate very big transverse load to rail, such as
The longitudinal rigidity and deflection stiffness of fruit pivoted arm node are excessive, it will increase transverse load further, accelerate the axis inside axle box
The actual conditions of abrasion are held, the method for proposing to change pivoted arm connection stiffness by adjusting pivoted arm node structure size, to prevent axis
Axle box bearing abrasion, it is to consider that changing rigidity is very different from the structure of rubber layer merely that this is relatively practical at present；We
Be found by experiment that the simple structure for changing rubber layer be for adjustment pivoted arm connection stiffness matching it is inadequate, pass through appropriate adjustment
Whole pivoted arm node structure size for improve pivoted arm connection stiffness matching be it is very helpful, this is for wanting both to have dropped
Low pivoted arm node is radial, while it is also helpful for increasing axial rigidity by adjusting pivoted arm node rubber layer thickness.According to
Such case, we propose to improve in the rubber molding surface size and pivoted arm node of pivoted arm node by the analysis and research of kinds of schemes
The diameter dimension of set and housing changes the rigidity property of pivoted arm node, and proposes first according to the vertical of arm length and steel spring
Deformation, calculates the torsion angle of pivoted arm node；Further according to the transversely deforming of arm length and steel spring, the inclined of pivoted arm node is calculated
Gyration；Torsion angle and deflection angle further according to pivoted arm node determine the longitudinal rigidity, deflection stiffness and torsion of pivoted arm node
Rigidity, then according to the transverse load of vehicle and vertical load, using FEM calculation go out pivoted arm node rubber molding surface size and
The diameter dimension of pivoted arm node inner sleeve and housing passes through the diameter dimension of rubber molding surface size and pivoted arm node inner sleeve and housing
Longitudinal rigidity, axial rigidity, torsion stiffness and the deflection stiffness of Matching and modification pivoted arm node, so that the longitudinal rigidity of pivoted arm node
Decline guarantees that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm-1, and deflection stiffness is reduced by control longitudinal rigidity,
Simultaneously by increasing axial rigidity, guarantee that the axial rigidity of pivoted arm node is controlled in 6-8KN.mm-1Within the scope of, guarantee that torsion is rigid
Degree does not decline, and test proves to can be effectively prevented or reduce the bearing wear inside axle box.
Detailed description of the invention
Fig. 1 is the combining structure schematic diagram of pivoted arm node of the present invention；
Fig. 2 is the structural schematic diagram of the single section pivoted arm node of the present invention.
Specific embodiment
It is next in the following with reference to the drawings and specific embodiments that the present invention is further explained.
Attached drawing 1 gives the principle of the present invention signal, is turned it can be seen in the drawings that the present invention relates to one kind by changing
The method of arm joint point structure size adjusting rigidity, to improve pivoted arm connection stiffness matching by adjusting pivoted arm node structure size
The method of energy, using two section cone-shaped inner hole pivoted arm combination of nodes structures, and by changing pivoted arm node rubber molding surface size and turning
The diameter dimension of arm joint point inner sleeve and housing changes the rigidity property of pivoted arm node, so that the longitudinal rigidity of pivoted arm node and partially
Turn Stiffness, while by increasing axial rigidity, avoiding torsion stiffness from declining, axle bearing abrasion is effectively reduced.
Further, the diameter by changing pivoted arm node rubber molding surface size and pivoted arm node inner sleeve and housing
Size calculates pivoted arm node come the vertical deformation that the rigidity property that changes pivoted arm node is first according to arm length and steel spring
Torsion angle；Further according to the transversely deforming of arm length and steel spring, the deflection angle of pivoted arm node is calculated；Further according to pivoted arm section
The torsion angle and deflection angle of point determine the longitudinal rigidity, deflection stiffness and torsion stiffness of pivoted arm node, then according to vehicle
Transverse load and vertical load go out pivoted arm node rubber molding surface size and pivoted arm node inner sleeve and housing using FEM calculation
Diameter dimension passes through the vertical of the Matching and modification pivoted arm node of rubber molding surface size and pivoted arm node inner sleeve and the diameter dimension of housing
To rigidity, axial rigidity, torsion stiffness and deflection stiffness, so that the longitudinal rigidity of pivoted arm node and deflection stiffness decline, simultaneously
By increasing axial rigidity, guarantee that torsion stiffness does not decline.
Further, the matching tune by rubber molding surface size and pivoted arm node inner sleeve and the diameter dimension of housing
Longitudinal rigidity, axial rigidity, torsion stiffness and the deflection stiffness of turn over arm joint point are to be set as the internal diameter of pivoted arm node inner sleeve
90 ~ 93mm, outer diameter are set as 128 ~ 132mm；The internal diameter of the diameter dimension of housing is set as 128 ~ 132mm, and outer diameter is set as 170
~173mm；And guarantee that the matching of the diameter dimension of pivoted arm node inner sleeve and housing can make the longitudinal rigidity of pivoted arm node control
11-13KN.mm-1, axial rigidity control is in 6-8KN.mm-1, so that transverse load of the vehicle when passing through curve at a high speed is reduced,
Reduce the bearing wear inside axle box.
Further, the matching tune by rubber molding surface size and pivoted arm node inner sleeve and the diameter dimension of housing
Longitudinal rigidity, axial rigidity, torsion stiffness and the deflection stiffness of turn over arm joint point are by the two of the rubber layer of pivoted arm node inner sleeve
Inwardly dig out a circle groove in end；Wherein, minor diameter one groove dimensions are controlled in 15 ~ 30mm；Major diameter one groove ruler
Very little control reduces the radial rigidity of pivoted arm node in 10 ~ 20mm by way of digging groove, improves the axial rigid of pivoted arm node
Degree, so that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm-1, and deflection stiffness, axis are reduced by control longitudinal rigidity
To stiffness reliability in 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, reduce the axis inside axle box
Hold abrasion.
Further, the groove is multistage deep trench；Wherein, first segment is inwardly recessed from rubber layer port surface
Unilateral surface groove, unilateral surface groove have on one side for the ring side parallel with pivoted arm node axis, and another side is first inwardly to close up
Bevel edge；Second segment groove is the radiused ramp slot with circular arc bottom edge, and radiused ramp slot has is and pivoted arm node rubber layer on one side
Identical second bevel edge of the slope on inclined-plane, the second bevel edge are connected with the first bevel edge of unilateral surface groove, radiused ramp slot another side
For the annular edge being connected with unilateral inclined-plane grooved ring side；Annular edge is got up with the second bevel edge by circular sliding slopes, and radiused ramp is formed
Slot.
Further, the ring side of the unilateral surface groove and the first bevel edge are the bound edge of pivoted arm node rubber layer, ring side
It is extended to the end face of pivoted arm node metal inner sleeve and housing respectively with the first bevel edge, is formed whole parcel-like.
Embodiment one
Attached Fig. 1 and 2 gives a specific embodiment of the invention；A kind of pivoted arm node, including left metal-coating 2 and a left side
Inner metal sleeve 1, integrally vulcanization has 4 He of left rubber layer 3 and right metal-coating between left metal-coating 2 and left inner metal sleeve 1
Right inner metal sleeve 5, integrally vulcanization has right rubber layer 6 between right metal-coating 4 and right inner metal sleeve 5；Left inner metal sleeve 1 and the right side
The inner hole of inner metal sleeve 5 is respectively that taper hole is arranged in opposite directions, i.e., outside, the microcephaly of taper hole fits snugly against the major part of taper hole back-to-back inside
Together；It is characterized in that, the D1 internal diameter of pivoted arm node inner sleeve is set as 90 ~ 93mm, outer diameter D 3 is set as 128 ~ 132mm；Outside
The internal diameter D2 of the diameter dimension of set is set as 128 ~ 132mm, and outer diameter D 4 is set as 170 ~ 173mm；And guarantee pivoted arm node inner sleeve
Matching with the diameter dimension of housing can make the longitudinal rigidity of pivoted arm node control in 11-13KN.mm-1, axial rigidity control
In 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, reduce the bearing wear inside axle box.
The inward at both ends of the rubber layer of the pivoted arm node inner sleeve respectively digs out a circle ring-shaped groove；Wherein, minor diameter one
The trench depth size H3 of head is controlled in 15 ~ 30mm；Major diameter one trench depth size H4 is controlled in 10 ~ 20mm, is passed through
The form for digging whole circle groove had both reduced the radial rigidity of pivoted arm node, the axial rigidity of pivoted arm node was improved, so that pivoted arm node
Longitudinal rigidity control in 11-13KN.mm-1, axial rigidity control is in 6-8KN.mm-1, so that reducing vehicle is passing through at a high speed song
Transverse load when line reduces the bearing wear inside axle box, while facilitating installation again, does not have to Kongxiang.
The groove is multistage deep trench；Wherein, first segment groove 7 is unilateral to be inwardly recessed from rubber layer port surface
Surface groove, unilateral surface groove have on one side for the ring side parallel with pivoted arm node axis, and another side is the first bevel edge inwardly to close up；
Second segment groove 8 is the radiused ramp slot with circular arc bottom edge, and radiused ramp slot has is and pivoted arm node rubber layer inclined-plane on one side
Identical second bevel edge of slope, the second bevel edge is connected with the first bevel edge of unilateral surface groove, radiused ramp slot another side be with
The connected annular edge in unilateral inclined-plane grooved ring side；Annular edge is got up with the second bevel edge by circular sliding slopes, and radiused ramp slot is formed.
The ring side of the unilateral surface groove and the first bevel edge are the bound edge of pivoted arm node rubber layer, ring side and the first bevel edge
It is extended to the end face of pivoted arm node metal inner sleeve and housing respectively, is formed whole parcel-like.
Embodiment two
Embodiment two and the structure of embodiment one are essentially the same, and only the internal diameter of pivoted arm node inner sleeve is set as 91 ~ 92mm,
Outer diameter is set as 129 ~ 130mm；The internal diameter of the diameter dimension of housing is set as 129 ~ 130mm, and outer diameter is set as 171 ~ 172mm；
And guarantee that the matching of the diameter dimension of pivoted arm node inner sleeve and housing can make the longitudinal rigidity of pivoted arm node control in 11-
13KN.mm-1, axial rigidity control is in 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, reduce
Bearing wear inside axle box.
Embodiment three
Embodiment three and the structure of embodiment two are essentially the same, only minor diameter one groove dimensions control 23 ~
26mm；The groove dimensions control that major diameter is one reduces the radial rigid of pivoted arm node in 15 ~ 18mm by way of digging groove
Degree improves the axial rigidity of pivoted arm node, so that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm-1, axial rigidity control
System is in 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, reduce the bearing wear inside axle box.
Above-mentioned listed embodiment, only carries out clear, complete description to technical solution of the present invention in conjunction with attached drawing；It is aobvious
So, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The present invention has the advantages that
The present invention is that axle bearing serious wear often occur in the pivoted arm axle-box locating by using scene
Problem carries out after studying repeatedly, finds vehicle when passing through curve at a high speed, takes turns to that can generate very big transverse load to rail, such as
The longitudinal rigidity and deflection stiffness of fruit pivoted arm node are excessive, it will increase transverse load further, accelerate the axis inside axle box
The actual conditions of abrasion are held, the method for proposing to change pivoted arm connection stiffness by adjusting pivoted arm node structure size, to prevent axis
Axle box bearing abrasion, it is to consider that changing rigidity is very different from the structure of rubber layer merely that this is relatively practical at present；We
Be found by experiment that the simple structure for changing rubber layer be for adjustment pivoted arm connection stiffness matching it is inadequate, pass through appropriate adjustment
Whole pivoted arm node structure size for improve pivoted arm connection stiffness matching be it is very helpful, this is for wanting both to have dropped
Low pivoted arm node is radial, while it is also helpful for increasing axial rigidity by adjusting pivoted arm node rubber layer thickness.According to
Such case, we propose to improve in the rubber molding surface size and pivoted arm node of pivoted arm node by the analysis and research of kinds of schemes
The diameter dimension of set and housing changes the rigidity property of pivoted arm node, and proposes first according to the vertical of arm length and steel spring
Deformation, calculates the torsion angle of pivoted arm node；Further according to the transversely deforming of arm length and steel spring, the inclined of pivoted arm node is calculated
Gyration；Torsion angle and deflection angle further according to pivoted arm node determine the longitudinal rigidity, deflection stiffness and torsion of pivoted arm node
Rigidity, then according to the transverse load of vehicle and vertical load, using FEM calculation go out pivoted arm node rubber molding surface size and
The diameter dimension of pivoted arm node inner sleeve and housing passes through the diameter dimension of rubber molding surface size and pivoted arm node inner sleeve and housing
Longitudinal rigidity, axial rigidity, torsion stiffness and the deflection stiffness of Matching and modification pivoted arm node, so that the longitudinal rigidity of pivoted arm node
Decline guarantees that the longitudinal rigidity of pivoted arm node is controlled in 11-13KN.mm-1, while by increasing axial rigidity, guarantee pivoted arm section
The axial rigidity of point is controlled in 6-8KN.mm-1Within the scope of, guarantee torsion stiffness do not decline, test prove can be effectively prevented or
Reduce the bearing wear inside axle box.
Claims (10)
1. a kind of method by changing pivoted arm node structure size adjusting rigidity, to change by adjusting pivoted arm node structure size
The method of kind pivoted arm connection stiffness matching performance, using two section cone-shaped inner hole pivoted arm combination of nodes structures, and by changing pivoted arm
The diameter dimension of the inner metal sleeve and metal-coating of node rubber molding surface size and pivoted arm node changes the rigidity of pivoted arm node
Performance, so that the radial rigidity of pivoted arm node and deflection stiffness decline, while by increasing axial rigidity, it avoids under torsion stiffness
Axle bearing abrasion is effectively reduced in drop.
2. the method as described in claim 1 by changing pivoted arm node structure size adjusting rigidity, it is characterised in that: described
The diameter dimension of inner metal sleeve and metal-coating by changing pivoted arm node rubber molding surface size and pivoted arm node change
The rigidity property of pivoted arm node is the vertical deformation first according to arm length and steel spring, calculates the torsion angle of pivoted arm node；
Further according to the transversely deforming of arm length and steel spring, the deflection angle of pivoted arm node is calculated；Further according to the torsion of pivoted arm node
Angle and deflection angle determine radial rigidity, deflection stiffness and the torsion stiffness of pivoted arm node, then according to the transverse load of vehicle
And vertical load, the inner metal sleeve and metal-coating of pivoted arm node rubber molding surface size and pivoted arm node are gone out using FEM calculation
Diameter dimension, pass through the Matching and modification of the diameter dimension of the inner metal sleeve and metal-coating of rubber molding surface size and pivoted arm node
Radial rigidity, axial rigidity, torsion stiffness and the deflection stiffness of pivoted arm node, so that the radial rigidity of pivoted arm node and deflection are rigid
Degree decline, while by increasing axial rigidity, guarantee that torsion stiffness does not decline.
3. the method as claimed in claim 2 by changing pivoted arm node structure size adjusting rigidity, it is characterised in that: pass through
The radial direction of the Matching and modification pivoted arm node of the diameter dimension of the inner metal sleeve and metal-coating of rubber molding surface size and pivoted arm node
Rigidity, axial rigidity, torsion stiffness and deflection stiffness are that the internal diameter of the inner metal sleeve of pivoted arm node is set as 90 ~ 93mm, outside
Diameter is set as 128 ~ 132mm；The internal diameter of the diameter dimension of metal-coating is set as 128 ~ 132mm, and outer diameter is set as 170 ~
173mm；And guarantee that the matching of the diameter dimension of pivoted arm node metal inner sleeve and metal-coating can make the radial rigid of pivoted arm node
In 11-13KN.mm-1, axial rigidity is controlled in 6-8KN.mm-1 for degree control, to reduce vehicle when passing through curve at a high speed
Transverse load reduces the bearing wear inside axle box.
4. the method as claimed in claim 2 by changing pivoted arm node structure size adjusting rigidity, it is characterised in that: pass through
The radial direction of the Matching and modification pivoted arm node of the diameter dimension of the inner metal sleeve and metal-coating of rubber molding surface size and pivoted arm node
Rigidity, axial rigidity, torsion stiffness and deflection stiffness are to dig out the inward at both ends of the rubber layer of the inner metal sleeve of pivoted arm node
One circle groove；Wherein, minor diameter one groove dimensions are controlled in 15 ~ 30mm；The control of groove dimensions that major diameter is one 10 ~
20mm is reduced the radial rigidity of pivoted arm node by way of digging groove, and reduces deflection stiffness by control radial rigidity, is mentioned
The axial rigidity of high pivoted arm node, so that the radial rigidity control of pivoted arm node, in 11-13KN.mm-1, axial rigidity control exists
6-8KN.mm-1 reduces the bearing wear inside axle box to reduce transverse load of the vehicle when passing through curve at a high speed.
5. the method by changing pivoted arm node structure size adjusting rigidity as described in claim 3 or 4, it is characterised in that:
The groove is multistage deep trench；Wherein, first segment groove is the unilateral surface groove being inwardly recessed from rubber layer port surface, single
When it is the ring parallel with pivoted arm node axis that surface groove, which has on one side, another side is the first bevel edge inwardly to close up；Second segment ditch
Slot is the radiused ramp slot with circular arc bottom edge, and it is identical as the slope on pivoted arm node rubber layer inclined-plane that radiused ramp slot has on one side
The second bevel edge, the second bevel edge is connected with the first bevel edge of unilateral surface groove, and radiused ramp slot another side is and unilateral surface groove
The connected annular edge in ring side；Annular edge is got up with the second bevel edge by circular sliding slopes, and radiused ramp slot is formed.
6. the method as claimed in claim 5 by changing pivoted arm node structure size adjusting rigidity, it is characterised in that: described
Unilateral surface groove ring side and the first bevel edge be pivoted arm node rubber layer bound edge, ring side and the first bevel edge are extended to respectively to be turned
The inner metal sleeve of arm joint point and the end face of metal-coating are formed whole parcel-like.
7. a kind of pivoted arm node, pivoted arm node is combined by the elastic rubber of two section symmetrical structures and is formed, including left metal-coating
With left inner metal sleeve, between left metal-coating and left inner metal sleeve integrally vulcanization have left rubber layer and right metal-coating and
Right inner metal sleeve, integrally vulcanization has right rubber layer between right metal-coating and right inner metal sleeve；Left rubber layer and right rubber layer
Opposite diagonally disposed respectively, the inner hole of left inner metal sleeve and right inner metal sleeve is also respectively that taper hole is arranged in opposite directions；It is characterized in that,
The internal diameter of the inner metal sleeve of pivoted arm node is set as 90 ~ 93mm, and outer diameter is set as 128 ~ 132mm；The diameter dimension of metal-coating
Internal diameter be set as 128 ~ 132mm, outer diameter is set as 170 ~ 173mm；And guarantee pivoted arm node inner metal sleeve and housing it is straight
The matching of diameter size can make the radial rigidity of pivoted arm node control in 11-13KN.mm-1, and be reduced by control radial rigidity
Deflection stiffness, axial rigidity is controlled in 6-8KN.mm-1, to reduce transverse load of the vehicle when passing through curve at a high speed, is reduced
Bearing wear inside axle box.
8. pivoted arm node as claimed in claim 7, it is characterised in that: the rubber layer of the inner metal sleeve of the pivoted arm node
Inward at both ends digs out a circle groove；Wherein, minor diameter one groove dimensions are controlled in 15 ~ 30mm；The groove that major diameter is one
Size Control reduces the radial rigidity of pivoted arm node in 10 ~ 20mm by way of digging groove, improves the axial rigid of pivoted arm node
Degree, so that the radial rigidity control of pivoted arm node is in 11-13KN.mm-1, axial rigidity is controlled in 6-8KN.mm-1, to reduce
Transverse load of the vehicle when passing through curve at a high speed reduces the bearing wear inside axle box.
9. pivoted arm node as claimed in claim 8, it is characterised in that: the groove is multistage deep trench；Wherein, first segment
For the unilateral surface groove being inwardly recessed from rubber layer port surface, unilateral surface groove has on one side for the ring parallel with pivoted arm node axis
Side, another side are the first bevel edge inwardly to close up；Second segment groove is the radiused ramp slot with circular arc bottom edge, radiused ramp slot
Have on one side for the second bevel edge identical with the slope on pivoted arm node rubber layer inclined-plane, the first of the second bevel edge and unilateral surface groove is tiltedly
Side is connected, and radiused ramp slot another side is the annular edge being connected with unilateral inclined-plane grooved ring side；Annular edge and the second bevel edge pass through circle
Arc connects, and forms radiused ramp slot.
10. pivoted arm node as claimed in claim 9, it is characterised in that: the ring side of the unilateral surface groove and the first bevel edge
For the bound edge of pivoted arm node rubber layer, ring side and the first bevel edge are extended to the inner metal sleeve and metal-coating of pivoted arm node respectively
End face is formed whole parcel-like.
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| CN109356953A (en) * | 2018-11-02 | 2019-02-19 | 株洲时代新材料科技股份有限公司 | A kind of the traction flexural pivot and torsion stiffness adjusting method of adjustable torsion stiffness |
| CN109340287A (en) * | 2018-11-02 | 2019-02-15 | 株洲时代新材料科技股份有限公司 | A kind of the traction flexural pivot and deflection stiffness adjusting method of adjustable deflection rigidity |
| JP7104010B2 (en) * | 2019-09-24 | 2022-07-20 | 株式会社ブリヂストン | Suspension bush |
| CN110816576B (en) * | 2019-11-11 | 2021-04-16 | 株洲时代瑞唯减振装备有限公司 | Method and device for improving fatigue life of elastic side bearing |
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| CH657333A5 (en) * | 1982-04-06 | 1986-08-29 | Inventio Ag | Wheel set guide for sets of running gear of rail vehicles which are capable of high speed |
| CN2485194Y (en) * | 2001-01-18 | 2002-04-10 | 株洲时代橡塑股份有限公司 | Wearless composite joint sleeve for rotary arm suspension of bogie shaft box |
| CN100458209C (en) * | 2005-06-22 | 2009-02-04 | 株洲时代新材料科技股份有限公司 | Axial precompression method for combined ball hinged rubber elastic element and product obtained thereby |
| CN201679893U (en) * | 2010-05-12 | 2010-12-22 | 株洲时代新材料科技股份有限公司 | Axially symmetrical precompression rubber joint |
| JP5771107B2 (en) * | 2011-09-30 | 2015-08-26 | 公益財団法人鉄道総合技術研究所 | Shaft box support device |
| CN103175748B (en) * | 2011-12-20 | 2015-01-21 | 南车青岛四方机车车辆股份有限公司 | Static strength and fatigue test device for tumbler type shaft housing as well as its method |
| CN202987174U (en) * | 2012-12-06 | 2013-06-12 | 南车二七车辆有限公司 | Railway freight car steering frame |
| CN204641774U (en) * | 2015-06-04 | 2015-09-16 | 株洲时代新材料科技股份有限公司 | Rail car axle box elastic panel nodes location structure |
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